v2.6.0 - Minor fixes release, closed issues #77 and #80

Everything seems great, just slightly adjusted the strings variables to avoid any conflict with the Ru locale. I'll add the proper translation with the feature fully implemented and v2.5.6 release.

.github/workflows/main.yml

@@ -0,0 +1,67 @@
+name: Look4Sat CI
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout latest commit
+        uses: actions/checkout@v2
+
+      - name: Setup java environment
+        uses: actions/setup-java@v1
+        with: { java-version: 11 }
+
+      - name: Assemble APK and Bundle
+        run: |
+          chmod +x ./gradlew
+          ./gradlew assembleRelease
+          ./gradlew bundleRelease
+
+      - name: Sign APK
+        uses: r0adkll/sign-android-release@v1
+        id: sign_apk
+        with:
+          releaseDirectory: app/build/outputs/apk/release
+          signingKeyBase64: ${{ secrets.KEY_STORE }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          alias: ${{ secrets.KEY_ALIAS }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: "31.0.0"
+
+      - name: Sign Bundle
+        uses: r0adkll/sign-android-release@v1
+        id: sign_bundle
+        with:
+          releaseDirectory: app/build/outputs/bundle/release
+          signingKeyBase64: ${{ secrets.KEY_STORE }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          alias: ${{ secrets.KEY_ALIAS }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: "31.0.0"
+
+      - name: Rename APK
+        run: |
+          mv ${{steps.sign_apk.outputs.signedReleaseFile}} app/build/outputs/apk/release/look4sat.apk
+
+      - name: Deploy Bundle to Play Store
+        uses: r0adkll/upload-google-play@v1.0.15
+        with:
+          serviceAccountJsonPlainText: ${{secrets.SERVICE_ACCOUNT_JSON}}
+          packageName: com.rtbishop.look4sat
+          track: production
+          whatsNewDirectory: fastlane/metadata/android/en-US/whatsnew
+          releaseFiles: ${{steps.sign_bundle.outputs.signedReleaseFile}}
+
+      - name: Create release
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: app/build/outputs/apk/release/look4sat.apk
+          bodyFile: fastlane/metadata/android/en-US/whatsnew/whatsnew-en-US
+          token: ${{ secrets.RELEASE_TOKEN }}

.gitignore

@@ -38,6 +38,9 @@ captures/
 # Keystore files
 # Uncomment the following line if you do not want to check your keystore files in.
 #*.jks
+/*.properties
+/keystore.properties
+/app/keystore.jks
 
 # External native build folder generated in Android Studio 2.2 and later
 .externalNativeBuild
@@ -56,3 +59,7 @@ fastlane/Preview.html
 fastlane/screenshots
 fastlane/test_output
 fastlane/readme.md
+/app/release/app-release.aab
+/app/release/app-release.apk
+/app/release/output-metadata.json
+/app/release/

LICENSE

@@ -1,281 +1,622 @@
                     GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
+                       Version 3, 29 June 2007
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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  of this license document, but changing it is not allowed.
 
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+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
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+share and change all versions of a program--to make sure it remains free
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+  A patent license is "discriminatory" if it does not include within
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+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
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-the only way you could satisfy both it and this License would be to
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+excuse you from the conditions of this License.  If you cannot convey a
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-If any portion of this section is held invalid or unenforceable under
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+  13. Use with the GNU Affero General Public License.
 
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+  Notwithstanding any other provision of this License, you have
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+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
 
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
+  14. Revised Versions of this License.
 
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
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-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
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-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
 
-                            NO WARRANTY
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
 
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
+  15. Disclaimer of Warranty.
 
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
 
@@ -287,15 +628,15 @@ free software which everyone can redistribute and change under these terms.
 
   To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
+state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
     <one line to give the program's name and a brief idea of what it does.>
     Copyright (C) <year>  <name of author>
 
-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
+    the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
@@ -303,37 +644,31 @@ the "copyright" line and a pointer to where the full notice is found.
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
 
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.
 
 The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
 
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
 
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1,33 +1,32 @@
-# Look4Sat: Radio satellite tracker
+# Look4Sat: Satellite tracker
+
+[![Look4Sat CI](https://github.com/rt-bishop/Look4Sat/actions/workflows/main.yml/badge.svg)](https://github.com/rt-bishop/Look4Sat/actions/workflows/main.yml)
 
-[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80">](https://f-droid.org/packages/com.rtbishop.look4sat/)
 [<img src="https://play.google.com/intl/en_gb/badges/static/images/badges/en_badge_web_generic.png" alt="Get it on Google Play" height="80">](https://play.google.com/store/apps/details?id=com.rtbishop.look4sat)
+[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80">](https://f-droid.org/packages/com.rtbishop.look4sat/)
 
-Amateur radio and weather satellite tracker and passes predictor for Android.
-
-The very app creation and design is hugely inspired by the open-source [Gpredict](http://gpredict.oz9aec.net/) desktop satellite tracking application, created by [Alexandru Csete, OZ9AEC](https://github.com/csete) and contributors, supported by the [Libre Space Foundation](https://libre.space/).
-
-The [Libre Space Foundation](https://libre.space/) team is also behind the epic [SatNOGS](https://satnogs.org/) project that provides an extremely easy to use [API](https://db.satnogs.org/api/) and [DB](https://db.satnogs.org/) with a huge amount of information about satellites, their telemetry and transmitters, which the app uses under the hood.
-
-For TLE data calculation and passes prediction Look4Sat uses the mavenized version of [predict4java](https://github.com/davidmoten/predict4java) library, created by [David A. B. Johnson, G4DPZ](https://github.com/g4dpz) and [Dave Moten](https://github.com/davidmoten). Thank you guys for your hard work making this lib efficient and easy to use!
-
-Also, I'd like to mention Dr T.S. Kelso for his invaluable contribution to the industry and for his [Celestrak](https://celestrak.com) website, that stores, updates and provides access to TLE data.
-
-The app is built using Dagger2, Retrofit2, Kotlin and Kotlin coroutines, Architecture Components and Jetpack Navigation.
+### Radio satellite tracker and pass predictor for Android, inspired by Gpredict
 
 <p float="left">
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/1.png" width="250"/>
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/2.png" width="250"/>
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/3.png" width="250"/>
+<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/1.png" width="160"/>
+<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/2.png" width="160"/>
+<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/3.png" width="160"/>
+<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/4.png" width="160">
 </p>
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/4.png" width="750">
+
+### Track satellite passes with ease!
+
+Thanks to the huge database provided by Celestrak and SatNOGS you have access to more than 3000 active satellites orbiting Earth. You can search the entire DB by satellite name or by NORAD catnum.
+
+Satellite positions and passes are calculated relative to your location. To get reliable info make sure to set the observation position using GPS or QTH Locator in the Settings menu.
+
+The application is built using Kotlin, Coroutines, Architecture Components and Jetpack Navigation. It is now and always will be completely ad-free and open-source.
 
 ## Main features:
 
-*  Calculating satellite passes for up to one week (168 hours)
-*  Calculating passes for the current or manually entered location
+*  Predicting satellite positions and passes for up to 4 days (96 hours)
 *  Showing the list of currently active and upcoming satellite passes
 *  Showing the active pass progress, polar trajectory and transceivers info
 *  Showing the satellite positional data, footprint and ground track on a map
-*  Offline first: passes predictions are made offline.
-Weekly updates of TLEs and transceivers DB are recommended.
+*  Custom TLE data import is available via files with TXT or TLE extensions
+*  Offline first: calculations are made offline. Weekly update of TLE data is recommended.

app/.gitignore

@@ -1 +1,2 @@
 /build
+/release

app/build.gradle

@@ -1,40 +1,40 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
-apply plugin: 'kotlin-kapt'
-apply plugin: "androidx.navigation.safeargs.kotlin"
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "kotlin-kapt"
+    id "dagger.hilt.android.plugin"
+}
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "29.0.3"
+    compileSdkVersion 31
+    buildToolsVersion "31.0.0"
+
     defaultConfig {
         applicationId "com.rtbishop.look4sat"
         minSdkVersion 21
-        targetSdkVersion 29
-        versionCode 18
-        versionName '1.4.8'
+        resConfigs "en,ru"
+        targetSdkVersion 31
+        versionCode 260
+        versionName "2.6.0"
+
+        kapt {
+            arguments {
+                arg("room.schemaLocation", "$projectDir/schemas")
+                arg("room.incremental", "true")
+                arg("room.expandProjection", "true")
+            }
+        }
     }
+
+//    def props = new Properties()
+//    file("../securityKeys.properties").withInputStream { props.load(it) }
+
     buildTypes {
         release {
+//            buildConfigField "String", "ApiKey", props.getProperty("apiKey")
+//            minifyEnabled true
+//            shrinkResources true
+//            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             postprocessing {
                 removeUnusedCode true
                 removeUnusedResources true
@@ -43,50 +43,41 @@ android {
             }
         }
     }
-    configurations {
-        all {
-            exclude module: 'commons-logging'
-        }
+    buildFeatures {
+        viewBinding true
     }
     compileOptions {
-        sourceCompatibility = 1.8
-        targetCompatibility = 1.8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
     }
     kotlinOptions {
-        jvmTarget = "1.8"
+        jvmTarget = JavaVersion.VERSION_11.toString()
     }
-    buildFeatures {
-        viewBinding = true
+    packagingOptions {
+        resources.excludes += "DebugProbesKt.bin"
     }
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation "com.google.android.material:material:$material_version"
-    implementation "androidx.appcompat:appcompat:$app_compat_version"
-    implementation "androidx.legacy:legacy-support-v4:$support_lib_version"
+    implementation project(':core')
+    implementation "androidx.core:core-splashscreen:$splash_screen_version"
     implementation "androidx.constraintlayout:constraintlayout:$constraint_layout_version"
-    implementation "androidx.core:core-ktx:$ktx_version"
-    implementation "androidx.preference:preference:$preference_version"
-    implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
-    implementation "androidx.navigation:navigation-runtime-ktx:$navigation_version"
-    implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
-    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
     implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
+    implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
+    implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
+    implementation "androidx.preference:preference-ktx:$preference_version"
     implementation "androidx.room:room-runtime:$room_version"
     implementation "androidx.room:room-ktx:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
 
-    implementation "com.google.dagger:dagger:$dagger_version"
-    kapt "com.google.dagger:dagger-compiler:$dagger_version"
+    implementation "com.google.dagger:hilt-android:$hilt_version"
+    kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
 
-    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
-    implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
-    implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
+    implementation "org.osmdroid:osmdroid-android:$osmdroid_version"
+    implementation "com.jakewharton.timber:timber:$timber_version"
 
-    implementation "org.osmdroid:osmdroid-android:$openStreetMap_version"
-
-    implementation "com.github.davidmoten:predict4java:$predict4java_version"
+    testImplementation "junit:junit:$junit_version"
+    testImplementation "org.mockito:mockito-android:$mockito_version"
+    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutines_version"
+    debugImplementation "com.squareup.leakcanary:leakcanary-android:$leak_canary_version"
 }

app/schemas/com.rtbishop.look4sat.framework.local.SatelliteDb/2.json

@@ -0,0 +1,134 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 2,
+    "identityHash": "555494c464b5a29285eb5493cc8aa5f6",
+    "entities": [
+      {
+        "tableName": "entries",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`tle` TEXT NOT NULL, `catNum` INTEGER NOT NULL, `name` TEXT NOT NULL, `isSelected` INTEGER NOT NULL, PRIMARY KEY(`catNum`))",
+        "fields": [
+          {
+            "fieldPath": "tle",
+            "columnName": "tle",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "catNum",
+            "columnName": "catNum",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isSelected",
+            "columnName": "isSelected",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "catNum"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "transmitters",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uuid` TEXT NOT NULL, `info` TEXT NOT NULL, `isAlive` INTEGER NOT NULL, `downlink` INTEGER, `uplink` INTEGER, `mode` TEXT, `isInverted` INTEGER NOT NULL, `catNum` INTEGER, PRIMARY KEY(`uuid`))",
+        "fields": [
+          {
+            "fieldPath": "uuid",
+            "columnName": "uuid",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "info",
+            "columnName": "info",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isAlive",
+            "columnName": "isAlive",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "downlink",
+            "columnName": "downlink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uplink",
+            "columnName": "uplink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mode",
+            "columnName": "mode",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isInverted",
+            "columnName": "isInverted",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "catNum",
+            "columnName": "catNum",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "uuid"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "sources",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`sourceUrl` TEXT NOT NULL, PRIMARY KEY(`sourceUrl`))",
+        "fields": [
+          {
+            "fieldPath": "sourceUrl",
+            "columnName": "sourceUrl",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "sourceUrl"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '555494c464b5a29285eb5493cc8aa5f6')"
+    ]
+  }
+}

app/schemas/com.rtbishop.look4sat.framework.local.SatelliteDb/3.json

@@ -0,0 +1,134 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 3,
+    "identityHash": "555494c464b5a29285eb5493cc8aa5f6",
+    "entities": [
+      {
+        "tableName": "entries",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`tle` TEXT NOT NULL, `catNum` INTEGER NOT NULL, `name` TEXT NOT NULL, `isSelected` INTEGER NOT NULL, PRIMARY KEY(`catNum`))",
+        "fields": [
+          {
+            "fieldPath": "tle",
+            "columnName": "tle",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "catNum",
+            "columnName": "catNum",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isSelected",
+            "columnName": "isSelected",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "catNum"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "transmitters",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uuid` TEXT NOT NULL, `info` TEXT NOT NULL, `isAlive` INTEGER NOT NULL, `downlink` INTEGER, `uplink` INTEGER, `mode` TEXT, `isInverted` INTEGER NOT NULL, `catNum` INTEGER, PRIMARY KEY(`uuid`))",
+        "fields": [
+          {
+            "fieldPath": "uuid",
+            "columnName": "uuid",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "info",
+            "columnName": "info",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isAlive",
+            "columnName": "isAlive",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "downlink",
+            "columnName": "downlink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uplink",
+            "columnName": "uplink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mode",
+            "columnName": "mode",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isInverted",
+            "columnName": "isInverted",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "catNum",
+            "columnName": "catNum",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "uuid"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "sources",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`sourceUrl` TEXT NOT NULL, PRIMARY KEY(`sourceUrl`))",
+        "fields": [
+          {
+            "fieldPath": "sourceUrl",
+            "columnName": "sourceUrl",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "sourceUrl"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '555494c464b5a29285eb5493cc8aa5f6')"
+    ]
+  }
+}

app/schemas/com.rtbishop.look4sat.framework.local.SatelliteDb/4.json

@@ -0,0 +1,212 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 4,
+    "identityHash": "0f08defa24a78647801005e9277faac7",
+    "entities": [
+      {
+        "tableName": "entries",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`isSelected` INTEGER NOT NULL, `name` TEXT NOT NULL, `epoch` REAL NOT NULL, `meanmo` REAL NOT NULL, `eccn` REAL NOT NULL, `incl` REAL NOT NULL, `raan` REAL NOT NULL, `argper` REAL NOT NULL, `meanan` REAL NOT NULL, `catnum` INTEGER NOT NULL, `bstar` REAL NOT NULL, `xincl` REAL NOT NULL, `xnodeo` REAL NOT NULL, `omegao` REAL NOT NULL, `xmo` REAL NOT NULL, `xno` REAL NOT NULL, `isDeepspace` INTEGER NOT NULL, PRIMARY KEY(`catnum`))",
+        "fields": [
+          {
+            "fieldPath": "isSelected",
+            "columnName": "isSelected",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.epoch",
+            "columnName": "epoch",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.meanmo",
+            "columnName": "meanmo",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.eccn",
+            "columnName": "eccn",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.incl",
+            "columnName": "incl",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.raan",
+            "columnName": "raan",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.argper",
+            "columnName": "argper",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.meanan",
+            "columnName": "meanan",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.catnum",
+            "columnName": "catnum",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.bstar",
+            "columnName": "bstar",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.xincl",
+            "columnName": "xincl",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.xnodeo",
+            "columnName": "xnodeo",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.omegao",
+            "columnName": "omegao",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.xmo",
+            "columnName": "xmo",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.xno",
+            "columnName": "xno",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tle.isDeepspace",
+            "columnName": "isDeepspace",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "catnum"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "transmitters",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uuid` TEXT NOT NULL, `info` TEXT NOT NULL, `isAlive` INTEGER NOT NULL, `downlink` INTEGER, `uplink` INTEGER, `mode` TEXT, `isInverted` INTEGER NOT NULL, `catnum` INTEGER, PRIMARY KEY(`uuid`))",
+        "fields": [
+          {
+            "fieldPath": "uuid",
+            "columnName": "uuid",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "info",
+            "columnName": "info",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isAlive",
+            "columnName": "isAlive",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "downlink",
+            "columnName": "downlink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uplink",
+            "columnName": "uplink",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mode",
+            "columnName": "mode",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isInverted",
+            "columnName": "isInverted",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "catnum",
+            "columnName": "catnum",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "uuid"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "sources",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`sourceUrl` TEXT NOT NULL, PRIMARY KEY(`sourceUrl`))",
+        "fields": [
+          {
+            "fieldPath": "sourceUrl",
+            "columnName": "sourceUrl",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "sourceUrl"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '0f08defa24a78647801005e9277faac7')"
+    ]
+  }
+}

app/src/main/AndroidManifest.xml

@@ -1,45 +1,21 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-  ~ Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
-  ~ Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
-  ~
-  ~ This program is free software; you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by
-  ~ the Free Software Foundation; either version 2 of the License, or
-  ~ (at your option) any later version.
-  ~
-  ~ This program is distributed in the hope that it will be useful,
-  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
-  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  ~ GNU General Public License for more details.
-  ~
-  ~ You should have received a copy of the GNU General Public License along
-  ~ with this program; if not, write to the Free Software Foundation, Inc.,
-  ~ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-  -->
-
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.rtbishop.look4sat">
 
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application
-        android:name="com.rtbishop.look4sat.Look4SatApp"
+        android:name=".presentation.Look4SatApplication"
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:supportsRtl="true"
-        android:theme="@style/AppTheme"
-        tools:ignore="GoogleAppIndexingWarning">
+        android:theme="@style/Theme.Look4Sat.Main">
         <activity
-            android:name="com.rtbishop.look4sat.ui.MainActivity"
-            android:configChanges="orientation|screenSize"
-            android:label="@string/app_name"
-            android:theme="@style/AppTheme.Splash">
+            android:name=".presentation.Look4SatActivity"
+            android:exported="true"
+            android:theme="@style/Theme.Look4Sat.SplashScreen">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />

app/src/main/java/com/rtbishop/look4sat/Look4SatApp.kt

@@ -1,31 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat
-
-import android.app.Application
-import com.rtbishop.look4sat.dagger.AppComponent
-import com.rtbishop.look4sat.dagger.DaggerAppComponent
-
-class Look4SatApp : Application() {
-
-    val appComponent: AppComponent by lazy {
-        DaggerAppComponent.factory().create(applicationContext)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/AppComponent.kt

@@ -1,50 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.dagger
-
-import android.content.Context
-import com.rtbishop.look4sat.dagger.modules.*
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.fragments.MapOsmFragment
-import com.rtbishop.look4sat.ui.fragments.MapViewFragment
-import com.rtbishop.look4sat.ui.fragments.PassListFragment
-import com.rtbishop.look4sat.ui.fragments.PolarViewFragment
-import dagger.BindsInstance
-import dagger.Component
-import javax.inject.Singleton
-
-@Singleton
-@Component(
-    modules = [NetworkModule::class, PersistenceModule::class,
-        RepoModule::class, UtilityModule::class, ViewModelModule::class]
-)
-interface AppComponent {
-
-    @Component.Factory
-    interface Factory {
-        fun create(@BindsInstance context: Context): AppComponent
-    }
-
-    fun inject(mainActivity: MainActivity)
-    fun inject(mapViewFragment: MapViewFragment)
-    fun inject(passListFragment: PassListFragment)
-    fun inject(polarViewFragment: PolarViewFragment)
-    fun inject(mapOsmFragment: MapOsmFragment)
-}

app/src/main/java/com/rtbishop/look4sat/dagger/ViewModelFactory.kt

@@ -1,25 +0,0 @@
-package com.rtbishop.look4sat.dagger
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class ViewModelFactory @Inject constructor(
-    private val creators: Map<Class<out ViewModel>,
-            @JvmSuppressWildcards Provider<ViewModel>>
-) : ViewModelProvider.Factory {
-    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
-        val creator = creators[modelClass] ?: creators.entries.firstOrNull {
-            modelClass.isAssignableFrom(it.key)
-        }?.value ?: throw IllegalArgumentException("Unsupported ViewModel class: $modelClass")
-        try {
-            @Suppress("UNCHECKED_CAST")
-            return creator.get() as T
-        } catch (e: Exception) {
-            throw RuntimeException(e)
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/ViewModelKey.kt

@@ -1,14 +0,0 @@
-package com.rtbishop.look4sat.dagger
-
-import androidx.lifecycle.ViewModel
-import dagger.MapKey
-import kotlin.reflect.KClass
-
-@Target(
-    AnnotationTarget.FUNCTION,
-    AnnotationTarget.PROPERTY_GETTER,
-    AnnotationTarget.PROPERTY_SETTER
-)
-@Retention(AnnotationRetention.RUNTIME)
-@MapKey
-annotation class ViewModelKey(val value: KClass<out ViewModel>)

app/src/main/java/com/rtbishop/look4sat/dagger/modules/NetworkModule.kt

@@ -1,56 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.dagger.modules
-
-import com.rtbishop.look4sat.network.RemoteDataSource
-import com.rtbishop.look4sat.network.RemoteSource
-import com.rtbishop.look4sat.network.TransmittersApi
-import dagger.Module
-import dagger.Provides
-import okhttp3.OkHttpClient
-import retrofit2.Retrofit
-import retrofit2.converter.gson.GsonConverterFactory
-import javax.inject.Singleton
-
-@Module
-class NetworkModule {
-
-    @Singleton
-    @Provides
-    fun provideOkHttpClient(): OkHttpClient {
-        return OkHttpClient()
-    }
-
-    @Singleton
-    @Provides
-    fun provideRemoteDataSource(api: TransmittersApi, client: OkHttpClient): RemoteSource {
-        return RemoteDataSource(api, client)
-    }
-
-    @Singleton
-    @Provides
-    fun provideTransmittersApi(): TransmittersApi {
-        return Retrofit.Builder()
-            .baseUrl("https://db.satnogs.org/api/")
-            .addConverterFactory(GsonConverterFactory.create())
-            .build()
-            .create(TransmittersApi::class.java)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/modules/PersistenceModule.kt

@@ -1,71 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.dagger.modules
-
-import android.content.Context
-import androidx.room.Room
-import com.rtbishop.look4sat.persistence.LocalDataSource
-import com.rtbishop.look4sat.persistence.LocalSource
-import com.rtbishop.look4sat.persistence.SatelliteDb
-import com.rtbishop.look4sat.persistence.dao.EntriesDao
-import com.rtbishop.look4sat.persistence.dao.SourcesDao
-import com.rtbishop.look4sat.persistence.dao.TransmittersDao
-import dagger.Module
-import dagger.Provides
-import javax.inject.Singleton
-
-@Module
-class PersistenceModule {
-
-    @Singleton
-    @Provides
-    fun provideEntriesDao(db: SatelliteDb): EntriesDao {
-        return db.entriesDao()
-    }
-
-    @Singleton
-    @Provides
-    fun provideTransmittersDao(db: SatelliteDb): TransmittersDao {
-        return db.transmittersDao()
-    }
-
-    @Singleton
-    @Provides
-    fun providesSourcesDao(db: SatelliteDb): SourcesDao {
-        return db.sourcesDao()
-    }
-
-    @Singleton
-    @Provides
-    fun provideLocalDataSource(
-        entriesDao: EntriesDao,
-        transmittersDao: TransmittersDao,
-        sourcesDao: SourcesDao
-    ): LocalSource {
-        return LocalDataSource(entriesDao, transmittersDao, sourcesDao)
-    }
-
-    @Singleton
-    @Provides
-    fun provideSatelliteDb(context: Context): SatelliteDb {
-        return Room.databaseBuilder(context, SatelliteDb::class.java, "satDb")
-            .build()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/modules/RepoModule.kt

@@ -1,31 +0,0 @@
-package com.rtbishop.look4sat.dagger.modules
-
-import android.content.ContentResolver
-import android.content.Context
-import com.rtbishop.look4sat.network.RemoteSource
-import com.rtbishop.look4sat.persistence.LocalSource
-import com.rtbishop.look4sat.repo.DefaultRepository
-import com.rtbishop.look4sat.repo.Repository
-import dagger.Module
-import dagger.Provides
-import javax.inject.Singleton
-
-@Module
-class RepoModule {
-
-    @Singleton
-    @Provides
-    fun provideContentResolver(context: Context): ContentResolver {
-        return context.applicationContext.contentResolver
-    }
-
-    @Singleton
-    @Provides
-    fun provideDefaultRepository(
-        resolver: ContentResolver,
-        localSource: LocalSource,
-        remoteSource: RemoteSource
-    ): Repository {
-        return DefaultRepository(resolver, localSource, remoteSource)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/modules/UtilityModule.kt

@@ -1,54 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.dagger.modules
-
-import android.content.Context
-import android.content.SharedPreferences
-import android.location.LocationManager
-import androidx.preference.PreferenceManager
-import com.rtbishop.look4sat.utility.PrefsManager
-import dagger.Module
-import dagger.Provides
-import javax.inject.Singleton
-
-@Module
-class UtilityModule {
-
-    @Singleton
-    @Provides
-    fun provideSharedPreferences(context: Context): SharedPreferences {
-        return PreferenceManager.getDefaultSharedPreferences(context)
-    }
-
-    @Singleton
-    @Provides
-    fun provideLocationManager(context: Context): LocationManager {
-        return context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
-    }
-
-    @Singleton
-    @Provides
-    fun providePrefsManager(
-        sharedPreferences: SharedPreferences,
-        locationManager: LocationManager
-    ): PrefsManager {
-        return PrefsManager(sharedPreferences, locationManager)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/dagger/modules/ViewModelModule.kt

@@ -1,22 +0,0 @@
-package com.rtbishop.look4sat.dagger.modules
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.dagger.ViewModelKey
-import com.rtbishop.look4sat.ui.SharedViewModel
-import dagger.Binds
-import dagger.Module
-import dagger.multibindings.IntoMap
-
-@Module
-abstract class ViewModelModule {
-
-    @Binds
-    @IntoMap
-    @ViewModelKey(SharedViewModel::class)
-    abstract fun bindSharedViewModel(viewModel: SharedViewModel): ViewModel
-
-    @Binds
-    abstract fun bindViewModelFactory(factory: ViewModelFactory): ViewModelProvider.Factory
-}

app/src/main/java/com/rtbishop/look4sat/data/Result.kt

@@ -1,7 +0,0 @@
-package com.rtbishop.look4sat.data
-
-sealed class Result<out T : Any> {
-    data class Success<out T : Any>(val data: T) : Result<T>()
-    data class Error(val exception: Exception) : Result<Nothing>()
-    object InProgress : Result<Nothing>()
-}

app/src/main/java/com/rtbishop/look4sat/data/SatEntry.kt

@@ -1,12 +0,0 @@
-package com.rtbishop.look4sat.data
-
-import androidx.room.Entity
-import androidx.room.PrimaryKey
-import com.github.amsacode.predict4java.TLE
-
-@Entity(tableName = "entries")
-data class SatEntry(val tle: TLE, var isSelected: Boolean = false) {
-    @PrimaryKey
-    var catNum: Int = tle.catnum
-    var name: String = tle.name
-}

app/src/main/java/com/rtbishop/look4sat/data/SatItem.kt

@@ -1,11 +0,0 @@
-package com.rtbishop.look4sat.data
-
-import org.osmdroid.api.IGeoPoint
-import org.osmdroid.views.overlay.OverlayItem
-
-data class SatItem(
-    val name: String,
-    val description: String,
-    val position: IGeoPoint,
-    val pass: SatPass
-) : OverlayItem(name, description, position)

app/src/main/java/com/rtbishop/look4sat/data/SatPass.kt

@@ -1,32 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.data
-
-import com.github.amsacode.predict4java.SatPassTime
-import com.github.amsacode.predict4java.TLE
-import com.rtbishop.look4sat.utility.PassPredictor
-
-data class SatPass(
-    val tle: TLE,
-    val predictor: PassPredictor,
-    val pass: SatPassTime,
-    var progress: Int = 0,
-    var active: Boolean = false
-)

app/src/main/java/com/rtbishop/look4sat/data/TleSource.kt

@@ -1,7 +0,0 @@
-package com.rtbishop.look4sat.data
-
-import androidx.room.Entity
-import androidx.room.PrimaryKey
-
-@Entity(tableName = "sources")
-data class TleSource(@PrimaryKey var url: String = String())

app/src/main/java/com/rtbishop/look4sat/data/Transmitter.kt

@@ -1,38 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.data
-
-import androidx.room.Entity
-import androidx.room.PrimaryKey
-import com.google.gson.annotations.SerializedName
-
-@Entity(tableName = "transmitters")
-data class Transmitter(
-    @PrimaryKey @SerializedName("uuid") val uuid: String,
-    @SerializedName("description") val description: String,
-    @SerializedName("alive") val isAlive: Boolean,
-    @SerializedName("uplink_low") val uplinkLow: Long?,
-    @SerializedName("uplink_high") val uplinkHigh: Long?,
-    @SerializedName("downlink_low") val downlinkLow: Long?,
-    @SerializedName("downlink_high") val downlinkHigh: Long?,
-    @SerializedName("mode") val mode: String?,
-    @SerializedName("invert") val isInverted: Boolean,
-    @SerializedName("norad_cat_id") val catNum: Int
-)

app/src/main/java/com/rtbishop/look4sat/framework/DataMapper.kt

@@ -0,0 +1,47 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework
+
+import com.rtbishop.look4sat.domain.model.SatEntry as DomainEntry
+import com.rtbishop.look4sat.domain.model.SatItem as DomainItem
+import com.rtbishop.look4sat.domain.model.Transmitter as DomainTransmitter
+import com.rtbishop.look4sat.framework.model.SatEntry as FrameworkEntry
+import com.rtbishop.look4sat.framework.model.SatItem as FrameworkItem
+import com.rtbishop.look4sat.framework.model.Transmitter as FrameworkTransmitter
+
+fun DomainEntry.toFramework() = FrameworkEntry(this.tle, this.isSelected)
+
+fun DomainTransmitter.toFramework() = FrameworkTransmitter(
+    this.uuid, this.info, this.isAlive, this.downlink,
+    this.uplink, this.mode, this.isInverted, this.catnum
+)
+
+fun FrameworkItem.toDomain() = DomainItem(this.catnum, this.name, this.isSelected, this.modes)
+
+fun FrameworkTransmitter.toDomain() = DomainTransmitter(
+    this.uuid, this.info, this.isAlive, this.downlink,
+    this.uplink, this.mode, this.isInverted, this.catnum
+)
+
+fun List<DomainEntry>.toFrameworkEntries() = this.map { it.toFramework() }
+
+fun List<DomainTransmitter>.toFramework() = this.map { it.toFramework() }
+
+fun List<FrameworkItem>.toDomainItems() = this.map { it.toDomain() }
+
+fun List<FrameworkTransmitter>.toDomain() = this.map { it.toDomain() }

app/src/main/java/com/rtbishop/look4sat/framework/LocationSource.kt

@@ -0,0 +1,75 @@
+package com.rtbishop.look4sat.framework
+
+import android.Manifest
+import android.content.Context
+import android.content.SharedPreferences
+import android.content.pm.PackageManager
+import android.hardware.GeomagneticField
+import android.location.Location
+import android.location.LocationListener
+import android.location.LocationManager
+import androidx.core.content.ContextCompat
+import com.rtbishop.look4sat.domain.LocationProvider
+import com.rtbishop.look4sat.domain.QthConverter
+import com.rtbishop.look4sat.domain.predict.GeoPos
+import com.rtbishop.look4sat.presentation.round
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.SharedFlow
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class LocationSource @Inject constructor(
+    @ApplicationContext private val context: Context,
+    private val preferences: SharedPreferences
+) : LocationListener, LocationProvider {
+
+    private val locManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
+    private val _updatedLocation = MutableSharedFlow<GeoPos?>()
+    override val updatedLocation: SharedFlow<GeoPos?> = _updatedLocation
+
+    fun getMagDeclination(stationPos: GeoPos, time: Long = System.currentTimeMillis()): Float {
+        val lat = stationPos.latitude.toFloat()
+        val lon = stationPos.longitude.toFloat()
+        return GeomagneticField(lat, lon, 0f, time).declination
+    }
+
+    fun updatePosition(latitude: Double, longitude: Double) {
+        if (QthConverter.isValidPosition(latitude, longitude)) {
+            _updatedLocation.tryEmit(GeoPos(latitude, longitude))
+        } else _updatedLocation.tryEmit(null)
+    }
+
+    fun updatePositionFromQth(qthString: String) {
+        val position = QthConverter.qthToPosition(qthString)
+        if (position != null) {
+            _updatedLocation.tryEmit(GeoPos(position.latitude, position.longitude))
+        } else _updatedLocation.tryEmit(null)
+    }
+
+    fun updatePositionFromGps() {
+        val provider = LocationManager.GPS_PROVIDER
+        val permission = Manifest.permission.ACCESS_FINE_LOCATION
+        val result = ContextCompat.checkSelfPermission(context, permission)
+        if (locManager.isProviderEnabled(provider) && result == PackageManager.PERMISSION_GRANTED) {
+            locManager.requestLocationUpdates(provider, 0L, 0f, this)
+        } else _updatedLocation.tryEmit(null)
+    }
+
+    fun updatePositionFromNetwork() {
+        val provider = LocationManager.NETWORK_PROVIDER
+        val permission = Manifest.permission.ACCESS_COARSE_LOCATION
+        val result = ContextCompat.checkSelfPermission(context, permission)
+        if (locManager.isProviderEnabled(provider) && result == PackageManager.PERMISSION_GRANTED) {
+            locManager.requestLocationUpdates(provider, 0L, 0f, this)
+        } else _updatedLocation.tryEmit(null)
+    }
+
+    override fun onLocationChanged(location: Location) {
+        locManager.removeUpdates(this)
+        val latitude = location.latitude.round(4)
+        val longitude = location.longitude.round(4)
+        _updatedLocation.tryEmit(GeoPos(latitude, longitude))
+    }
+}

app/src/main/java/com/rtbishop/look4sat/framework/OrientationSource.kt

@@ -0,0 +1,79 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework
+
+import android.hardware.Sensor
+import android.hardware.SensorEvent
+import android.hardware.SensorEventListener
+import android.hardware.SensorManager
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.math.round
+
+@Singleton
+class OrientationSource @Inject constructor(private val sensorManager: SensorManager) :
+    SensorEventListener {
+
+    interface OrientationListener {
+        fun onOrientationChanged(azimuth: Float, pitch: Float, roll: Float)
+    }
+
+    private val sensor: Sensor? = sensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR)
+    private val rotationMatrix = FloatArray(9)
+    private val orientationValues = FloatArray(3)
+    private val oneRadDegrees = 57.295779513f
+    private var sensorAccuracy: Int = SensorManager.SENSOR_STATUS_UNRELIABLE
+    private var orientationListener: OrientationListener? = null
+
+    fun startListening(listener: OrientationListener) {
+        if (sensor != null && orientationListener !== listener) {
+            orientationListener = listener
+            sensorManager.registerListener(this, sensor, 16000)
+        } else return
+    }
+
+    fun stopListening() {
+        sensorManager.unregisterListener(this)
+        orientationListener = null
+    }
+
+    override fun onAccuracyChanged(sensor: Sensor, accuracy: Int) {
+        sensorAccuracy = accuracy
+    }
+
+    override fun onSensorChanged(event: SensorEvent) {
+        when {
+            orientationListener == null -> return
+            sensorAccuracy == SensorManager.SENSOR_STATUS_UNRELIABLE -> return
+            event.sensor == sensor -> updateOrientation(event.values)
+        }
+    }
+
+    private fun updateOrientation(rotationVector: FloatArray) {
+        SensorManager.getRotationMatrixFromVector(rotationMatrix, rotationVector)
+        SensorManager.getOrientation(rotationMatrix, orientationValues)
+        val azimuth = orientationValues[0] * oneRadDegrees
+        val pitch = orientationValues[1] * oneRadDegrees
+        val roll = orientationValues[2] * oneRadDegrees
+        val magneticAzimuth = (azimuth + 360f) % 360f
+        val roundedAzimuth = round(magneticAzimuth * 10) / 10
+        val roundedPitch = round(pitch * 10) / 10
+        val roundedRoll = round(roll * 10) / 10
+        orientationListener?.onOrientationChanged(roundedAzimuth, roundedPitch, roundedRoll)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/framework/PreferencesSource.kt

@@ -0,0 +1,155 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework
+
+import android.content.SharedPreferences
+import android.hardware.GeomagneticField
+import android.location.LocationManager
+import androidx.core.content.edit
+import com.rtbishop.look4sat.BuildConfig
+import com.rtbishop.look4sat.domain.predict.GeoPos
+import com.rtbishop.look4sat.domain.QthConverter
+import com.rtbishop.look4sat.presentation.round
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class PreferencesSource @Inject constructor(
+    private val locationManager: LocationManager,
+    private val preferences: SharedPreferences
+) {
+
+    private val keyInitialSetup = "${BuildConfig.VERSION_NAME}update"
+
+    companion object {
+        const val keyModes = "satModes"
+        const val keyCompass = "compass"
+        const val keyRadarSweep = "radarSweep"
+        const val keyTextLabels = "shouldUseTextLabels"
+        const val keyTimeUTC = "timeUTC"
+        const val keyHoursAhead = "hoursAhead"
+        const val keyMinElevation = "minElevation"
+        const val keyRotator = "isRotatorEnabled"
+        const val keyRotatorAddress = "rotatorAddress"
+        const val keyRotatorPort = "rotatorPort"
+        const val keyLatitude = "stationLat"
+        const val keyLongitude = "stationLon"
+        const val keyPositionGPS = "setPositionGPS"
+        const val keyPositionQTH = "setPositionQTH"
+    }
+
+    fun loadStationPosition(): GeoPos {
+        val defaultSP = "0.0"
+        val latitude = preferences.getString(keyLatitude, null) ?: defaultSP
+        val longitude = preferences.getString(keyLongitude, null) ?: defaultSP
+        return GeoPos(latitude.toDouble(), longitude.toDouble())
+    }
+
+    private fun saveStationPosition(pos: GeoPos) {
+        preferences.edit {
+            putString(keyLatitude, pos.latitude.toString())
+            putString(keyLongitude, pos.longitude.toString())
+        }
+    }
+
+    fun updatePositionFromGPS(): Boolean {
+        return try {
+            val location = locationManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER)
+            if (location == null) false
+            else {
+                val latitude = location.latitude.round(4)
+                val longitude = location.longitude.round(4)
+                val stationPosition = GeoPos(latitude, longitude)
+                saveStationPosition(stationPosition)
+                return true
+            }
+        } catch (exception: SecurityException) {
+            false
+        }
+    }
+
+    fun updatePositionFromQTH(qthString: String): Boolean {
+        val position = QthConverter.qthToPosition(qthString) ?: return false
+        val stationPosition = GeoPos(position.latitude, position.longitude)
+        saveStationPosition(stationPosition)
+        return true
+    }
+
+    fun getMagDeclination(): Float {
+        val stationPosition = loadStationPosition()
+        val lat = stationPosition.latitude.toFloat()
+        val lon = stationPosition.longitude.toFloat()
+        return GeomagneticField(lat, lon, 0f, System.currentTimeMillis()).declination
+    }
+
+    fun getHoursAhead(): Int {
+        return preferences.getInt(keyHoursAhead, 8)
+    }
+
+    fun getMinElevation(): Double {
+        return preferences.getInt(keyMinElevation, 16).toDouble()
+    }
+
+    fun shouldUseTextLabels(): Boolean {
+        return preferences.getBoolean(keyTextLabels, false)
+    }
+
+    fun shouldUseUTC(): Boolean {
+        return preferences.getBoolean(keyTimeUTC, false)
+    }
+
+    fun shouldUseCompass(): Boolean {
+        return preferences.getBoolean(keyCompass, true)
+    }
+
+    fun shouldShowSweep(): Boolean {
+        return preferences.getBoolean(keyRadarSweep, true)
+    }
+
+    fun isSetupDone(): Boolean {
+        return preferences.getBoolean(keyInitialSetup, false)
+    }
+
+    fun setSetupDone() {
+        preferences.edit { putBoolean(keyInitialSetup, true) }
+    }
+
+    fun saveModesSelection(modes: List<String>) {
+        val modesSet = modes.toSet()
+        preferences.edit {
+            putStringSet(keyModes, modesSet)
+        }
+    }
+
+    fun loadModesSelection(): List<String> {
+        preferences.getStringSet(keyModes, setOf())?.let { modesSet ->
+            return modesSet.toList().sorted()
+        }
+        return emptyList()
+    }
+
+    fun isRotatorEnabled(): Boolean {
+        return preferences.getBoolean(keyRotator, false)
+    }
+
+    fun getRotatorServer(): Pair<String, Int> {
+        val address = preferences.getString(keyRotatorAddress, null) ?: "127.0.0.1"
+        val port = preferences.getString(keyRotatorPort, null) ?: "4533"
+        return Pair(address, port.toInt())
+    }
+}

app/src/main/java/com/rtbishop/look4sat/framework/local/EntriesDao.kt

@@ -0,0 +1,60 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.local
+
+import androidx.room.*
+import com.rtbishop.look4sat.framework.model.SatEntry
+import com.rtbishop.look4sat.framework.model.SatItem
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface EntriesDao {
+
+    @Transaction
+    @Query("SELECT catnum, name, isSelected FROM entries ORDER BY name ASC")
+    fun getSatelliteItems(): Flow<List<SatItem>>
+
+    @Query("SELECT * FROM entries WHERE isSelected = 1")
+    suspend fun getSelectedSatellites(): List<SatEntry>
+
+    @Transaction
+    suspend fun updateEntries(entries: List<SatEntry>) {
+        val entriesSelection = getEntriesSelection()
+        insertEntries(entries)
+        restoreSelection(entriesSelection, true)
+    }
+
+    @Query("SELECT catnum FROM entries WHERE isSelected = 1")
+    suspend fun getEntriesSelection(): List<Int>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertEntries(entries: List<SatEntry>)
+
+    @Transaction
+    suspend fun restoreSelection(catnums: List<Int>, isSelected: Boolean) {
+        updateEntriesSelection(catnums, isSelected)
+    }
+
+    @Transaction
+    suspend fun updateEntriesSelection(catnums: List<Int>, isSelected: Boolean) {
+        catnums.forEach { catnum -> updateEntrySelection(catnum, isSelected) }
+    }
+
+    @Query("UPDATE entries SET isSelected = :isSelected WHERE catnum = :catnum")
+    suspend fun updateEntrySelection(catnum: Int, isSelected: Boolean)
+}

app/src/main/java/com/rtbishop/look4sat/framework/local/LocalSource.kt

@@ -0,0 +1,65 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.local
+
+import com.rtbishop.look4sat.data.LocalDataSource
+import com.rtbishop.look4sat.domain.model.SatEntry
+import com.rtbishop.look4sat.domain.model.SatItem
+import com.rtbishop.look4sat.domain.model.Transmitter
+import com.rtbishop.look4sat.domain.predict.Satellite
+import com.rtbishop.look4sat.framework.*
+import com.rtbishop.look4sat.framework.model.Source
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+class LocalSource(
+    private val entriesDao: EntriesDao,
+    private val sourcesDao: SourcesDao,
+    private val transmittersDao: TransmittersDao
+) : LocalDataSource {
+
+    override fun getSatelliteItems(): Flow<List<SatItem>> {
+        return entriesDao.getSatelliteItems().map { items -> items.toDomainItems() }
+    }
+
+    override suspend fun getSelectedSatellites(): List<Satellite> {
+        return entriesDao.getSelectedSatellites().map { entry -> entry.tle.createSat() }
+    }
+
+    override suspend fun getSources() = sourcesDao.getSources()
+
+    override suspend fun getTransmitters(catnum: Int): List<Transmitter> {
+        return transmittersDao.getTransmitters(catnum).toDomain()
+    }
+
+    override suspend fun updateEntries(entries: List<SatEntry>) {
+        entriesDao.updateEntries(entries.toFrameworkEntries())
+    }
+
+    override suspend fun updateEntriesSelection(catnums: List<Int>, isSelected: Boolean) {
+        entriesDao.updateEntriesSelection(catnums, isSelected)
+    }
+
+    override suspend fun updateSources(sources: List<String>) {
+        sourcesDao.updateSources(sources.map { sourceUrl -> Source(sourceUrl) })
+    }
+
+    override suspend fun updateTransmitters(transmitters: List<Transmitter>) {
+        transmittersDao.updateTransmitters(transmitters.toFramework())
+    }
+}

app/src/main/java/com/rtbishop/look4sat/framework/local/SatelliteDb.kt

@@ -0,0 +1,68 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.local
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+import com.rtbishop.look4sat.framework.model.Source
+import com.rtbishop.look4sat.framework.model.SatEntry
+import com.rtbishop.look4sat.framework.model.Transmitter
+
+@Database(
+    entities = [SatEntry::class, Source::class, Transmitter::class],
+    version = 4,
+    exportSchema = true
+)
+abstract class SatelliteDb : RoomDatabase() {
+
+    abstract fun entriesDao(): EntriesDao
+
+    abstract fun sourcesDao(): SourcesDao
+
+    abstract fun transmittersDao(): TransmittersDao
+}
+
+val MIGRATION_1_2 = object : Migration(1, 2) {
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("CREATE TABLE trans_backup (uuid TEXT NOT NULL, info TEXT NOT NULL, isAlive INTEGER NOT NULL, downlink INTEGER, uplink INTEGER, mode TEXT, isInverted INTEGER NOT NULL, catNum INTEGER, PRIMARY KEY(uuid))")
+        database.execSQL("INSERT INTO trans_backup (uuid, info, isAlive, downlink, uplink, mode, isInverted, catNum) SELECT uuid, info, isAlive, downlink, uplink, mode, isInverted, catNum FROM transmitters")
+        database.execSQL("DROP TABLE transmitters")
+        database.execSQL("ALTER TABLE trans_backup RENAME TO transmitters")
+    }
+}
+
+val MIGRATION_2_3 = object : Migration(2, 3) {
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("CREATE TABLE sources (sourceUrl TEXT NOT NULL, PRIMARY KEY(sourceUrl))")
+    }
+}
+
+val MIGRATION_3_4 = object : Migration(3, 4) {
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("CREATE TABLE entries_backup (isSelected INTEGER NOT NULL, name TEXT NOT NULL, epoch REAL NOT NULL, meanmo REAL NOT NULL, eccn REAL NOT NULL, incl REAL NOT NULL, raan REAL NOT NULL, argper REAL NOT NULL, meanan REAL NOT NULL, catnum INTEGER NOT NULL, bstar REAL NOT NULL, xincl REAL NOT NULL, xnodeo REAL NOT NULL, omegao REAL NOT NULL, xmo REAL NOT NULL, xno REAL NOT NULL, isDeepspace INTEGER NOT NULL, PRIMARY KEY(catnum))")
+        database.execSQL("INSERT INTO entries_backup (isSelected, name, epoch, meanmo, eccn, incl, raan, argper, meanan, catnum, bstar, xincl, xnodeo, omegao, xmo, xno, isDeepspace) SELECT isSelected, 'name', 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, catNum, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0 FROM entries")
+        database.execSQL("DROP TABLE entries")
+        database.execSQL("ALTER TABLE entries_backup RENAME TO entries")
+        database.execSQL("CREATE TABLE trans_backup (uuid TEXT NOT NULL, info TEXT NOT NULL, isAlive INTEGER NOT NULL, downlink INTEGER, uplink INTEGER, mode TEXT, isInverted INTEGER NOT NULL, catnum INTEGER, PRIMARY KEY(uuid))")
+        database.execSQL("INSERT INTO trans_backup (uuid, info, isAlive, downlink, uplink, mode, isInverted, catnum) SELECT uuid, info, isAlive, downlink, uplink, mode, isInverted, catNum FROM transmitters")
+        database.execSQL("DROP TABLE transmitters")
+        database.execSQL("ALTER TABLE trans_backup RENAME TO transmitters")
+    }
+}

app/src/main/java/com/rtbishop/look4sat/framework/local/SourcesDao.kt

@@ -0,0 +1,40 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.local
+
+import androidx.room.*
+import com.rtbishop.look4sat.framework.model.Source
+
+@Dao
+interface SourcesDao {
+
+    @Query("SELECT sourceUrl FROM sources")
+    suspend fun getSources(): List<String>
+
+    @Transaction
+    suspend fun updateSources(sources: List<Source>) {
+        deleteSources()
+        insertSources(sources)
+    }
+
+    @Query("DELETE from sources")
+    suspend fun deleteSources()
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertSources(sources: List<Source>)
+}

app/src/main/java/com/rtbishop/look4sat/framework/local/TransmittersDao.kt

@@ -0,0 +1,31 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.local
+
+import androidx.room.*
+import com.rtbishop.look4sat.framework.model.Transmitter
+
+@Dao
+interface TransmittersDao {
+
+    @Query("SELECT * FROM transmitters WHERE catnum = :catnum")
+    suspend fun getTransmitters(catnum: Int): List<Transmitter>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun updateTransmitters(transmitters: List<Transmitter>)
+}

app/src/main/java/com/rtbishop/look4sat/framework/model/SatEntry.kt

@@ -0,0 +1,29 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.model
+
+import androidx.room.Embedded
+import androidx.room.Entity
+import com.rtbishop.look4sat.domain.predict.TLE
+
+@Entity(tableName = "entries", primaryKeys = ["catnum"])
+data class SatEntry(
+    @Embedded
+    val tle: TLE,
+    var isSelected: Boolean = false
+)

app/src/main/java/com/rtbishop/look4sat/framework/model/SatItem.kt

@@ -0,0 +1,33 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.model
+
+import androidx.room.Relation
+
+data class SatItem(
+    val catnum: Int,
+    val name: String,
+    var isSelected: Boolean,
+    @Relation(
+        parentColumn = "catnum",
+        entity = Transmitter::class,
+        entityColumn = "catnum",
+        projection = ["mode"]
+    )
+    val modes: List<String>
+)

app/src/main/java/com/rtbishop/look4sat/framework/model/Source.kt

@@ -0,0 +1,24 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.model
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "sources")
+data class Source(@PrimaryKey var sourceUrl: String = String())

app/src/main/java/com/rtbishop/look4sat/framework/model/Transmitter.kt

@@ -0,0 +1,33 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.framework.model
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "transmitters")
+data class Transmitter(
+    @PrimaryKey val uuid: String,
+    val info: String,
+    val isAlive: Boolean,
+    var downlink: Long?,
+    var uplink: Long?,
+    val mode: String?,
+    val isInverted: Boolean,
+    val catnum: Int?
+)

app/src/main/java/com/rtbishop/look4sat/framework/remote/RemoteSource.kt

@@ -0,0 +1,19 @@
+package com.rtbishop.look4sat.framework.remote
+
+import com.rtbishop.look4sat.data.RemoteDataSource
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.withContext
+import java.io.InputStream
+import java.net.URL
+
+class RemoteSource(private val ioDispatcher: CoroutineDispatcher) : RemoteDataSource {
+
+    @Suppress("BlockingMethodInNonBlockingContext")
+    override suspend fun fetchFileStream(url: String): InputStream? {
+        return try {
+            withContext(ioDispatcher) { URL(url).openStream() }
+        } catch (e: Exception) {
+            null
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/injection/AppModule.kt

@@ -0,0 +1,60 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.injection
+
+import android.content.ContentResolver
+import android.content.Context
+import android.content.SharedPreferences
+import android.hardware.SensorManager
+import android.location.LocationManager
+import androidx.preference.PreferenceManager
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object AppModule {
+
+    @Provides
+    @Singleton
+    fun provideContentResolver(@ApplicationContext context: Context): ContentResolver {
+        return context.contentResolver
+    }
+
+    @Provides
+    @Singleton
+    fun provideLocationManager(@ApplicationContext context: Context): LocationManager {
+        return context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
+    }
+
+    @Provides
+    @Singleton
+    fun provideSensorManager(@ApplicationContext context: Context): SensorManager {
+        return context.getSystemService(Context.SENSOR_SERVICE) as SensorManager
+    }
+
+    @Provides
+    @Singleton
+    fun provideSharedPreferences(@ApplicationContext context: Context): SharedPreferences {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/injection/CoreModule.kt

@@ -0,0 +1,67 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.injection
+
+import android.content.Context
+import androidx.room.Room
+import com.rtbishop.look4sat.data.DefaultRepository
+import com.rtbishop.look4sat.domain.DataParser
+import com.rtbishop.look4sat.domain.DataRepository
+import com.rtbishop.look4sat.domain.DataReporter
+import com.rtbishop.look4sat.domain.predict.Predictor
+import com.rtbishop.look4sat.framework.local.*
+import com.rtbishop.look4sat.framework.remote.RemoteSource
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import kotlinx.coroutines.CoroutineDispatcher
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object CoreModule {
+
+    @Provides
+    @Singleton
+    fun provideSatelliteRepo(
+        @ApplicationContext context: Context,
+        @IoDispatcher ioDispatcher: CoroutineDispatcher,
+        @DefaultDispatcher defaultDispatcher: CoroutineDispatcher
+    ): DataRepository {
+        val dataParser = DataParser(defaultDispatcher)
+        val db = Room.databaseBuilder(context, SatelliteDb::class.java, "SatelliteDb")
+            .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4).build()
+        val localSource = LocalSource(db.entriesDao(), db.sourcesDao(), db.transmittersDao())
+        val remoteSource = RemoteSource(ioDispatcher)
+        return DefaultRepository(dataParser, localSource, remoteSource)
+    }
+
+    @Provides
+    @Singleton
+    fun providePredictor(@DefaultDispatcher dispatcher: CoroutineDispatcher): Predictor {
+        return Predictor(dispatcher)
+    }
+
+    @Provides
+    @Singleton
+    fun provideDataReporter(@IoDispatcher dispatcher: CoroutineDispatcher): DataReporter {
+        return DataReporter(dispatcher)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/injection/KotlinModule.kt

@@ -0,0 +1,55 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.injection
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import javax.inject.Qualifier
+
+@Module
+@InstallIn(SingletonComponent::class)
+object KotlinModule {
+
+    @Provides
+    @DefaultDispatcher
+    fun provideDefaultDispatcher(): CoroutineDispatcher = Dispatchers.Default
+
+    @Provides
+    @IoDispatcher
+    fun provideIoDispatcher(): CoroutineDispatcher = Dispatchers.IO
+
+    @Provides
+    @MainDispatcher
+    fun provideMainDispatcher(): CoroutineDispatcher = Dispatchers.Main
+}
+
+@Qualifier
+@Retention(AnnotationRetention.BINARY)
+annotation class DefaultDispatcher
+
+@Qualifier
+@Retention(AnnotationRetention.BINARY)
+annotation class IoDispatcher
+
+@Qualifier
+@Retention(AnnotationRetention.BINARY)
+annotation class MainDispatcher

app/src/main/java/com/rtbishop/look4sat/network/RemoteDataSource.kt

@@ -1,53 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.network
-
-import android.util.Log
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import java.io.InputStream
-import javax.inject.Inject
-
-class RemoteDataSource @Inject constructor(
-    private val api: TransmittersApi,
-    private val client: OkHttpClient
-) : RemoteSource {
-
-    override suspend fun fetchTleStreams(urlList: List<TleSource>): List<InputStream> {
-        val streams = mutableListOf<InputStream>()
-        withContext(Dispatchers.IO) {
-            urlList.withIndex().forEach {
-                val request = Request.Builder().url(it.value.url).build()
-                val stream = client.newCall(request).execute().body?.byteStream()
-                stream?.let { inputStream -> streams.add(inputStream) }
-            }
-        }
-        Log.d("myTag", urlList.toString())
-        return streams
-    }
-
-    override suspend fun fetchTransmitters(): List<Transmitter> {
-        return api.fetchTransmitters()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/network/RemoteSource.kt

@@ -1,12 +0,0 @@
-package com.rtbishop.look4sat.network
-
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-import java.io.InputStream
-
-interface RemoteSource {
-
-    suspend fun fetchTleStreams(urlList: List<TleSource>): List<InputStream>
-
-    suspend fun fetchTransmitters(): List<Transmitter>
-}

app/src/main/java/com/rtbishop/look4sat/network/TransmittersApi.kt

@@ -1,29 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.network
-
-import com.rtbishop.look4sat.data.Transmitter
-import retrofit2.http.GET
-
-interface TransmittersApi {
-
-    @GET("transmitters/")
-    suspend fun fetchTransmitters(): List<Transmitter>
-}

app/src/main/java/com/rtbishop/look4sat/persistence/LocalDataSource.kt

@@ -1,84 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.persistence
-
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-import com.rtbishop.look4sat.persistence.dao.EntriesDao
-import com.rtbishop.look4sat.persistence.dao.SourcesDao
-import com.rtbishop.look4sat.persistence.dao.TransmittersDao
-import javax.inject.Inject
-
-class LocalDataSource @Inject constructor(
-    private val entriesDao: EntriesDao,
-    private val transmittersDao: TransmittersDao,
-    private val sourcesDao: SourcesDao
-) : LocalSource {
-
-    override suspend fun insertEntries(entries: List<SatEntry>) {
-        entriesDao.insertEntries(entries)
-    }
-
-    override suspend fun getAllEntries(): List<SatEntry> {
-        return entriesDao.getAllEntries()
-    }
-
-    override suspend fun getSelectedEntries(): List<SatEntry> {
-        return entriesDao.getSelectedEntries()
-    }
-
-    override suspend fun updateEntriesSelection(catNumList: List<Int>) {
-        entriesDao.clearEntriesSelection()
-        catNumList.forEach { entriesDao.updateEntrySelection(it) }
-    }
-
-    override suspend fun clearEntries() {
-        entriesDao.clearEntries()
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    override suspend fun insertTransmitters(transmitters: List<Transmitter>) {
-        transmittersDao.insertTransmitters(transmitters)
-    }
-
-    override suspend fun getTransmittersByCatNum(catNum: Int): List<Transmitter> {
-        return transmittersDao.getTransmittersByCatNum(catNum)
-    }
-
-    override suspend fun clearTransmitters() {
-        transmittersDao.clearTransmitters()
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    override suspend fun insertSources(sources: List<TleSource>) {
-        sourcesDao.insertSources(sources)
-    }
-
-    override suspend fun getSources(): List<TleSource> {
-        return sourcesDao.getSources()
-    }
-
-    override suspend fun clearSources() {
-        sourcesDao.clearSources()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/persistence/LocalSource.kt

@@ -1,34 +0,0 @@
-package com.rtbishop.look4sat.persistence
-
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-
-interface LocalSource {
-
-    suspend fun insertEntries(entries: List<SatEntry>)
-
-    suspend fun getAllEntries(): List<SatEntry>
-
-    suspend fun getSelectedEntries(): List<SatEntry>
-
-    suspend fun updateEntriesSelection(catNumList: List<Int>)
-
-    suspend fun clearEntries()
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    suspend fun insertTransmitters(transmitters: List<Transmitter>)
-
-    suspend fun getTransmittersByCatNum(catNum: Int): List<Transmitter>
-
-    suspend fun clearTransmitters()
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    suspend fun insertSources(sources: List<TleSource>)
-
-    suspend fun getSources(): List<TleSource>
-
-    suspend fun clearSources()
-}

app/src/main/java/com/rtbishop/look4sat/persistence/SatelliteDb.kt

@@ -1,46 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.persistence
-
-import androidx.room.Database
-import androidx.room.RoomDatabase
-import androidx.room.TypeConverters
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-import com.rtbishop.look4sat.persistence.dao.EntriesDao
-import com.rtbishop.look4sat.persistence.dao.SourcesDao
-import com.rtbishop.look4sat.persistence.dao.TransmittersDao
-import com.rtbishop.look4sat.utility.Converters
-
-@Database(
-    entities = [Transmitter::class, SatEntry::class, TleSource::class],
-    version = 1,
-    exportSchema = false
-)
-@TypeConverters(Converters::class)
-abstract class SatelliteDb : RoomDatabase() {
-
-    abstract fun entriesDao(): EntriesDao
-
-    abstract fun transmittersDao(): TransmittersDao
-
-    abstract fun sourcesDao(): SourcesDao
-}

app/src/main/java/com/rtbishop/look4sat/persistence/dao/EntriesDao.kt

@@ -1,48 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.persistence.dao
-
-import androidx.room.Dao
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-import com.rtbishop.look4sat.data.SatEntry
-
-@Dao
-interface EntriesDao {
-
-    @Insert(onConflict = OnConflictStrategy.REPLACE)
-    suspend fun insertEntries(entries: List<SatEntry>)
-
-    @Query("SELECT * FROM entries ORDER BY name ASC")
-    suspend fun getAllEntries(): List<SatEntry>
-
-    @Query("SELECT * FROM entries WHERE isSelected = 1 ORDER BY name ASC")
-    suspend fun getSelectedEntries(): List<SatEntry>
-
-    @Query("UPDATE entries SET isSelected = 1 WHERE catNum == :catNum")
-    suspend fun updateEntrySelection(catNum: Int)
-
-    @Query("UPDATE entries SET isSelected = 0")
-    suspend fun clearEntriesSelection()
-
-    @Query("DELETE FROM entries")
-    suspend fun clearEntries()
-}

app/src/main/java/com/rtbishop/look4sat/persistence/dao/SourcesDao.kt

@@ -1,20 +0,0 @@
-package com.rtbishop.look4sat.persistence.dao
-
-import androidx.room.Dao
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-import com.rtbishop.look4sat.data.TleSource
-
-@Dao
-interface SourcesDao {
-
-    @Insert(onConflict = OnConflictStrategy.REPLACE)
-    suspend fun insertSources(sources: List<TleSource>)
-
-    @Query("SELECT * FROM sources")
-    suspend fun getSources(): List<TleSource>
-
-    @Query("DELETE FROM sources")
-    suspend fun clearSources()
-}

app/src/main/java/com/rtbishop/look4sat/persistence/dao/TransmittersDao.kt

@@ -1,20 +0,0 @@
-package com.rtbishop.look4sat.persistence.dao
-
-import androidx.room.Dao
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-import com.rtbishop.look4sat.data.Transmitter
-
-@Dao
-interface TransmittersDao {
-
-    @Insert(onConflict = OnConflictStrategy.REPLACE)
-    suspend fun insertTransmitters(transmitters: List<Transmitter>)
-
-    @Query("SELECT * FROM transmitters WHERE isAlive = 1 and catNum = :catNum")
-    suspend fun getTransmittersByCatNum(catNum: Int): List<Transmitter>
-
-    @Query("DELETE FROM transmitters")
-    suspend fun clearTransmitters()
-}

app/src/main/java/com/rtbishop/look4sat/presentation/Extensions.kt

@@ -0,0 +1,108 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.os.Bundle
+import android.widget.Toast
+import androidx.annotation.IdRes
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.navigation.NavController
+import androidx.navigation.NavOptions
+import androidx.navigation.Navigator
+import androidx.navigation.fragment.findNavController
+import java.security.MessageDigest
+import java.util.concurrent.TimeUnit
+import java.util.regex.Pattern
+
+fun Context.toast(text: String, duration: Int = Toast.LENGTH_SHORT) {
+    Toast.makeText(this, text, duration).apply { show() }
+}
+
+fun SharedPreferences.getDouble(key: String, default: Double): Double {
+    return Double.fromBits(getLong(key, default.toRawBits()))
+}
+
+fun SharedPreferences.Editor.putDouble(key: String, double: Double) {
+    putLong(key, double.toRawBits())
+}
+
+fun NavController.navigateSafe(
+    @IdRes resId: Int,
+    args: Bundle? = null,
+    options: NavOptions? = null,
+    extras: Navigator.Extras? = null
+) {
+    val action = currentDestination?.getAction(resId) ?: graph.getAction(resId)
+    if (action != null && currentDestination?.id != action.destinationId) {
+        navigate(resId, args, options, extras)
+    }
+}
+
+fun <T> Fragment.getNavResult(@IdRes id: Int, key: String, onResult: (result: T) -> Unit) {
+    val backStackEntry = findNavController().getBackStackEntry(id)
+    val observer = LifecycleEventObserver { _, event ->
+        if (event == Lifecycle.Event.ON_RESUME && backStackEntry.savedStateHandle.contains(key)) {
+            backStackEntry.savedStateHandle.get<T>(key)?.let(onResult)
+            backStackEntry.savedStateHandle.remove<T>(key)
+        }
+    }
+    backStackEntry.lifecycle.addObserver(observer)
+    viewLifecycleOwner.lifecycle.addObserver(LifecycleEventObserver { _, event ->
+        if (event == Lifecycle.Event.ON_DESTROY) backStackEntry.lifecycle.removeObserver(observer)
+    })
+}
+
+fun <T> Fragment.setNavResult(key: String, value: T) {
+    findNavController().previousBackStackEntry?.savedStateHandle?.set(key, value)
+}
+
+fun Long.toTimerString(): String {
+    val format = "%02d:%02d:%02d"
+    val hours = TimeUnit.MILLISECONDS.toHours(this)
+    val minutes = TimeUnit.MILLISECONDS.toMinutes(this) % 60
+    val seconds = TimeUnit.MILLISECONDS.toSeconds(this) % 60
+    return String.format(format, hours, minutes, seconds)
+}
+
+fun Double.round(decimals: Int): Double {
+    var multiplier = 1.0
+    repeat(decimals) { multiplier *= 10 }
+    return kotlin.math.round(this * multiplier) / multiplier
+}
+
+fun String.getHash(type: String = "SHA-256"): String {
+    val hexChars = "0123456789ABCDEF"
+    val bytes = MessageDigest.getInstance(type).digest(this.toByteArray())
+    val result = StringBuilder(bytes.size * 2)
+    bytes.forEach {
+        val i = it.toInt()
+        result.append(hexChars[i shr 4 and 0x0f])
+        result.append(hexChars[i and 0x0f])
+    }
+    return result.toString()
+}
+
+fun String.isEmailValid(): Boolean {
+    val expression = "^[\\w.-]+@([\\w\\-]+\\.)+[A-Z]{2,8}$"
+    val pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE)
+    return pattern.matcher(this).matches()
+}

app/src/main/java/com/rtbishop/look4sat/presentation/ItemDivider.kt

@@ -0,0 +1,44 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation
+
+import android.graphics.Canvas
+import androidx.core.content.ContextCompat
+import androidx.recyclerview.widget.RecyclerView
+
+class ItemDivider(private val resId: Int) : RecyclerView.ItemDecoration() {
+
+    override fun onDrawOver(canvas: Canvas, parent: RecyclerView) {
+        ContextCompat.getDrawable(parent.context, resId)?.let { drawable ->
+            val leftPos = parent.paddingLeft
+            val rightPos = parent.width - parent.paddingRight
+            parent.adapter?.itemCount?.let { childCount ->
+                for (i in 0 until childCount) {
+                    if (i == (childCount - 1)) continue
+                    parent.getChildAt(i)?.let { view ->
+                        val params = view.layoutParams as RecyclerView.LayoutParams
+                        val topPos = view.bottom + params.bottomMargin
+                        val bottomPos = topPos + drawable.intrinsicHeight
+                        drawable.setBounds(leftPos, topPos, rightPos, bottomPos)
+                        drawable.draw(canvas)
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/Look4SatActivity.kt

@@ -0,0 +1,44 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation
+
+import android.annotation.SuppressLint
+import android.content.pm.ActivityInfo
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.setupWithNavController
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.ActivityMainBinding
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class Look4SatActivity : AppCompatActivity() {
+
+    @SuppressLint("SourceLockedOrientationActivity")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+        super.onCreate(savedInstanceState)
+        installSplashScreen()
+        val binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+        val navHost = supportFragmentManager.findFragmentById(R.id.main_nav_host) as NavHostFragment
+        binding.mainNavBottom.setupWithNavController(navHost.navController)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/Look4SatApplication.kt

@@ -0,0 +1,32 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation
+
+import android.app.Application
+import com.rtbishop.look4sat.BuildConfig
+import dagger.hilt.android.HiltAndroidApp
+import timber.log.Timber
+
+@HiltAndroidApp
+class Look4SatApplication : Application() {
+
+    override fun onCreate() {
+        super.onCreate()
+        if (BuildConfig.DEBUG) Timber.plant(Timber.DebugTree())
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/entriesScreen/EntriesAdapter.kt

@@ -0,0 +1,78 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.entriesScreen
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.AsyncListDiffer
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+import com.rtbishop.look4sat.domain.model.SatItem
+import com.rtbishop.look4sat.databinding.ItemEntryBinding
+
+class EntriesAdapter(private val clickListener: EntriesClickListener) :
+    RecyclerView.Adapter<EntriesAdapter.SatItemHolder>() {
+
+    private val diffCallback = object : DiffUtil.ItemCallback<SatItem>() {
+        override fun areItemsTheSame(oldItem: SatItem, newItem: SatItem): Boolean {
+            return oldItem.catnum == newItem.catnum
+        }
+
+        override fun areContentsTheSame(oldItem: SatItem, newItem: SatItem): Boolean {
+            return oldItem.isSelected == newItem.isSelected
+        }
+    }
+    private val differ = AsyncListDiffer(this, diffCallback)
+
+    fun submitList(items: List<SatItem>) {
+        differ.submitList(items)
+    }
+
+    override fun getItemCount(): Int = differ.currentList.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SatItemHolder {
+        return SatItemHolder.from(parent)
+    }
+
+    override fun onBindViewHolder(holder: SatItemHolder, position: Int) {
+        holder.bind(differ.currentList[position], clickListener)
+    }
+
+    class SatItemHolder private constructor(private val binding: ItemEntryBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: SatItem, listener: EntriesClickListener) {
+            binding.entryCheckbox.text = item.name
+            binding.entryCheckbox.isChecked = item.isSelected
+            itemView.setOnClickListener {
+                listener.updateSelection(listOf(item.catnum), item.isSelected.not())
+            }
+        }
+
+        companion object {
+            fun from(parent: ViewGroup): SatItemHolder {
+                val inflater = LayoutInflater.from(parent.context)
+                return SatItemHolder(ItemEntryBinding.inflate(inflater, parent, false))
+            }
+        }
+    }
+
+    interface EntriesClickListener {
+        fun updateSelection(catNums: List<Int>, isSelected: Boolean)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/entriesScreen/EntriesFragment.kt

@@ -0,0 +1,135 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.entriesScreen
+
+import android.os.Bundle
+import android.view.View
+import android.view.inputmethod.EditorInfo
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.SimpleItemAnimator
+import com.google.android.material.snackbar.Snackbar
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.FragmentEntriesBinding
+import com.rtbishop.look4sat.domain.model.SatItem
+import com.rtbishop.look4sat.domain.model.DataState
+import com.rtbishop.look4sat.presentation.ItemDivider
+import com.rtbishop.look4sat.presentation.getNavResult
+import com.rtbishop.look4sat.presentation.navigateSafe
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class EntriesFragment : Fragment(R.layout.fragment_entries) {
+
+    private val viewModel: EntriesViewModel by viewModels()
+    private val contentContract = ActivityResultContracts.GetContent()
+    private val filePicker = registerForActivityResult(contentContract) { uri ->
+        uri?.let { viewModel.updateDataFromFile(uri) }
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupComponents(view)
+    }
+
+    private fun setupComponents(view: View) {
+        val entriesAdapter = EntriesAdapter(viewModel)
+        val binding = FragmentEntriesBinding.bind(view).apply {
+            entriesRecycler.apply {
+                setHasFixedSize(true)
+                adapter = entriesAdapter
+                layoutManager = GridLayoutManager(requireContext(), 2)
+                (itemAnimator as SimpleItemAnimator).supportsChangeAnimations = false
+                addItemDecoration(ItemDivider(R.drawable.rec_divider_light))
+            }
+            entriesImportWeb.setOnClickListener {
+                findNavController().navigateSafe(R.id.action_entries_to_sources)
+            }
+            entriesImportFile.setOnClickListener { filePicker.launch("*/*") }
+            entriesSelectMode.setOnClickListener { showModesDialog() }
+            entriesSelectAll.setOnClickListener { viewModel.selectCurrentItems() }
+            entriesSearchBar.setOnQueryTextListener(viewModel)
+            entriesSearchBar.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
+        }
+        viewModel.satData.observe(viewLifecycleOwner, { satData ->
+            handleSatData(satData, binding, entriesAdapter)
+        })
+        getNavResult<List<String>>(R.id.nav_entries, "sources") { sources ->
+            viewModel.updateDataFromWeb(sources)
+        }
+    }
+
+    private fun handleSatData(
+        dataState: DataState<List<SatItem>>,
+        binding: FragmentEntriesBinding,
+        entriesAdapter: EntriesAdapter
+    ) {
+        when (dataState) {
+            is DataState.Success -> {
+                entriesAdapter.submitList(dataState.data)
+                binding.entriesProgress.visibility = View.INVISIBLE
+                binding.entriesRecycler.visibility = View.VISIBLE
+            }
+            is DataState.Loading -> {
+                binding.entriesProgress.visibility = View.VISIBLE
+                binding.entriesRecycler.visibility = View.INVISIBLE
+            }
+            is DataState.Error -> {
+                binding.entriesProgress.visibility = View.INVISIBLE
+                binding.entriesRecycler.visibility = View.VISIBLE
+                val message = getString(R.string.entries_update_error)
+                Snackbar.make(requireView(), message, Snackbar.LENGTH_SHORT).show()
+            }
+            else -> {
+            }
+        }
+    }
+
+    private fun showModesDialog() {
+        val modes = arrayOf(
+            "AFSK", "AFSK S-Net", "AFSK SALSAT", "AHRPT", "AM", "APT", "BPSK", "BPSK PMT-A3",
+            "CERTO", "CW", "DQPSK", "DSTAR", "DUV", "FFSK", "FM", "FMN", "FSK", "FSK AX.100 Mode 5",
+            "FSK AX.100 Mode 6", "FSK AX.25 G3RUH", "GFSK", "GFSK Rktr", "GMSK", "HRPT", "LoRa",
+            "LRPT", "LSB", "MFSK", "MSK", "MSK AX.100 Mode 5", "MSK AX.100 Mode 6", "OFDM", "OQPSK",
+            "PSK", "PSK31", "PSK63", "QPSK", "QPSK31", "QPSK63", "SSTV", "USB", "WSJT"
+        )
+        val savedModes = BooleanArray(modes.size)
+        val selectedModes = viewModel.loadSelectedModes().toMutableList()
+        selectedModes.forEach { savedModes[modes.indexOf(it)] = true }
+        AlertDialog.Builder(requireContext()).apply {
+            setTitle(context.getString(R.string.modes_title))
+            setMultiChoiceItems(modes, savedModes) { _, which, isChecked ->
+                when {
+                    isChecked -> selectedModes.add(modes[which])
+                    selectedModes.contains(modes[which]) -> selectedModes.remove(modes[which])
+                }
+            }
+            setPositiveButton(context.getString(android.R.string.ok)) { _, _ ->
+                viewModel.saveSelectedModes(selectedModes)
+            }
+            setNeutralButton(context.getString(android.R.string.cancel)) { dialog, _ ->
+                dialog.dismiss()
+            }
+            create().show()
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/entriesScreen/EntriesViewModel.kt

@@ -0,0 +1,125 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.entriesScreen
+
+import android.content.ContentResolver
+import android.net.Uri
+import android.widget.SearchView
+import androidx.lifecycle.*
+import com.rtbishop.look4sat.domain.model.SatItem
+import com.rtbishop.look4sat.domain.model.DataState
+import com.rtbishop.look4sat.domain.DataRepository
+import com.rtbishop.look4sat.framework.PreferencesSource
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.CoroutineExceptionHandler
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.launch
+import timber.log.Timber
+import java.util.*
+import javax.inject.Inject
+
+@HiltViewModel
+class EntriesViewModel @Inject constructor(
+    private val preferences: PreferencesSource,
+    private val resolver: ContentResolver,
+    private val dataRepository: DataRepository
+) : ViewModel(), SearchView.OnQueryTextListener, EntriesAdapter.EntriesClickListener {
+
+    private val coroutineHandler = CoroutineExceptionHandler { _, throwable ->
+        Timber.d(throwable)
+        _satData.value = DataState.Error(throwable)
+    }
+    private val transModes = MutableLiveData(preferences.loadModesSelection())
+    private val currentQuery = MutableLiveData(String())
+    private val itemsWithModes = transModes.switchMap { modes ->
+        liveData { dataRepository.getSatelliteItems().collect { emit(filterByModes(it, modes)) } }
+    }
+    private val itemsWithQuery = currentQuery.switchMap { query ->
+        itemsWithModes.map { items -> DataState.Success(filterByQuery(items, query)) }
+    }
+    private val _satData = MediatorLiveData<DataState<List<SatItem>>>().apply {
+        addSource(itemsWithQuery) { value -> this.value = value }
+    }
+    private var shouldSelectAll = true
+    val satData: LiveData<DataState<List<SatItem>>> = _satData
+
+    fun updateDataFromFile(uri: Uri) {
+        viewModelScope.launch(coroutineHandler) {
+            _satData.value = DataState.Loading
+            runCatching {
+                resolver.openInputStream(uri)?.use { stream ->
+                    dataRepository.updateDataFromFile(stream)
+                }
+            }.onFailure { _satData.value = DataState.Error(it) }
+        }
+    }
+
+    fun updateDataFromWeb(sources: List<String>) {
+        viewModelScope.launch(coroutineHandler) {
+            _satData.value = DataState.Loading
+            dataRepository.updateDataFromWeb(sources)
+        }
+    }
+
+    fun selectCurrentItems() {
+        val currentValue = _satData.value
+        if (currentValue is DataState.Success) {
+            updateSelection(currentValue.data.map { it.catnum }, shouldSelectAll)
+            shouldSelectAll = shouldSelectAll.not()
+        }
+    }
+
+    fun loadSelectedModes(): List<String> {
+        return preferences.loadModesSelection()
+    }
+
+    fun saveSelectedModes(modes: List<String>) {
+        transModes.value = modes
+        preferences.saveModesSelection(modes)
+    }
+
+    override fun onQueryTextSubmit(query: String): Boolean {
+        return true
+    }
+
+    override fun onQueryTextChange(newText: String): Boolean {
+        currentQuery.value = newText
+        return true
+    }
+
+    override fun updateSelection(catNums: List<Int>, isSelected: Boolean) {
+        viewModelScope.launch { dataRepository.updateSelection(catNums, isSelected) }
+    }
+
+    private fun filterByModes(items: List<SatItem>, modes: List<String>): List<SatItem> {
+        if (modes.isEmpty()) return items
+        return items.filter { item -> item.modes.any { mode -> mode in modes } }
+    }
+
+    private fun filterByQuery(items: List<SatItem>, query: String): List<SatItem> {
+        if (query.isBlank()) return items
+        return try {
+            items.filter { it.catnum == query.toInt() }
+        } catch (e: Exception) {
+            items.filter { item ->
+                val itemName = item.name.lowercase(Locale.getDefault())
+                itemName.contains(query.lowercase(Locale.getDefault()))
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/infoScreen/InfoFragment.kt

@@ -0,0 +1,55 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.infoScreen
+
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.text.method.LinkMovementMethod
+import android.view.View
+import androidx.fragment.app.Fragment
+import com.rtbishop.look4sat.BuildConfig
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.FragmentInfoBinding
+
+class InfoFragment : Fragment(R.layout.fragment_info) {
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        FragmentInfoBinding.bind(view).apply {
+            infoVersion.text =
+                String.format(getString(R.string.info_version), BuildConfig.VERSION_NAME)
+            infoBtnGithub.setOnClickListener {
+                gotoUrl("https://github.com/rt-bishop/Look4Sat/")
+            }
+            infoBtnFdroid.setOnClickListener {
+                gotoUrl("https://f-droid.org/en/packages/com.rtbishop.look4sat/")
+            }
+            infoBtnDonate.setOnClickListener {
+                gotoUrl("https://www.buymeacoffee.com/rtbishop")
+            }
+            val moveMethod = LinkMovementMethod.getInstance()
+            infoThanks.movementMethod = moveMethod
+            infoWarranty.movementMethod = moveMethod
+        }
+    }
+
+    private fun gotoUrl(url: String) {
+        startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url)))
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/mapScreen/MapData.kt

@@ -0,0 +1,32 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.mapScreen
+
+import com.rtbishop.look4sat.domain.predict.GeoPos
+import com.rtbishop.look4sat.domain.predict.Satellite
+
+data class MapData(
+    val pass: Satellite,
+    val catNum: Int,
+    val name: String,
+    val range: Double,
+    val altitude: Double,
+    val velocity: Double,
+    val qthLoc: String,
+    val osmPos: GeoPos
+)

app/src/main/java/com/rtbishop/look4sat/presentation/mapScreen/MapFragment.kt

@@ -0,0 +1,205 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.mapScreen
+
+import android.content.SharedPreferences
+import android.graphics.Color
+import android.graphics.ColorMatrix
+import android.graphics.ColorMatrixColorFilter
+import android.graphics.Paint
+import android.os.Bundle
+import android.view.View
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.FragmentMapBinding
+import com.rtbishop.look4sat.domain.predict.GeoPos
+import com.rtbishop.look4sat.domain.predict.Satellite
+import dagger.hilt.android.AndroidEntryPoint
+import org.osmdroid.config.Configuration
+import org.osmdroid.tileprovider.tilesource.TileSourceFactory
+import org.osmdroid.util.GeoPoint
+import org.osmdroid.views.CustomZoomButtonsController
+import org.osmdroid.views.MapView
+import org.osmdroid.views.overlay.*
+import timber.log.Timber
+import java.util.*
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class MapFragment : Fragment(R.layout.fragment_map) {
+
+    @Inject
+    lateinit var sharedPreferences: SharedPreferences
+
+    private val viewModel: MapViewModel by viewModels()
+    private val minLat = MapView.getTileSystem().minLatitude
+    private val maxLat = MapView.getTileSystem().maxLatitude
+    private val trackPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        strokeWidth = 2f
+        style = Paint.Style.STROKE
+        color = Color.RED
+        strokeCap = Paint.Cap.ROUND
+        strokeJoin = Paint.Join.ROUND
+    }
+    private val footprintPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        style = Paint.Style.FILL_AND_STROKE
+        color = Color.parseColor("#26FFE082")
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        Configuration.getInstance().load(requireContext(), sharedPreferences)
+        val binding = FragmentMapBinding.bind(view).apply {
+            mapView.apply {
+                setMultiTouchControls(true)
+                setTileSource(TileSourceFactory.WIKIMEDIA)
+                minZoomLevel = getMinZoom(resources.displayMetrics.heightPixels) + 0.25
+                maxZoomLevel = 5.75
+                controller.setZoom(minZoomLevel + 0.25)
+                zoomController.setVisibility(CustomZoomButtonsController.Visibility.NEVER)
+                overlayManager.tilesOverlay.loadingBackgroundColor = Color.TRANSPARENT
+                overlayManager.tilesOverlay.loadingLineColor = Color.TRANSPARENT
+                overlayManager.tilesOverlay.setColorFilter(getColorFilter())
+                setScrollableAreaLimitLatitude(maxLat, minLat, 0)
+                // add overlays: 0 - GSP, 1 - SatTrack, 2 - SatFootprint, 3 - SatIcons
+                overlays.addAll(Array(4) { FolderOverlay() })
+            }
+        }
+        binding.mapBtnPrev.setOnClickListener { viewModel.scrollSelection(true) }
+        binding.mapBtnNext.setOnClickListener { viewModel.scrollSelection(false) }
+        setupObservers(binding)
+    }
+
+    private fun setupObservers(binding: FragmentMapBinding) {
+        viewModel.selectDefaultSatellite(arguments?.getInt("catNum"))
+        viewModel.stationPosLiveData.observe(viewLifecycleOwner, { renderStationPos(it, binding) })
+        viewModel.satPositions.observe(viewLifecycleOwner, { renderSatPositions(it, binding) })
+        viewModel.satTrack.observe(viewLifecycleOwner, { renderSatTrack(it, binding) })
+        viewModel.satFootprint.observe(viewLifecycleOwner, { renderSatFootprint(it, binding) })
+        viewModel.mapData.observe(viewLifecycleOwner, { renderSatData(it, binding) })
+    }
+
+    private fun renderStationPos(stationPos: GeoPos, binding: FragmentMapBinding) {
+        binding.apply {
+            Marker(mapView).apply {
+                setInfoWindow(null)
+                setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM)
+                icon = ContextCompat.getDrawable(requireContext(), R.drawable.ic_map_pos)
+                position = GeoPoint(stationPos.latitude, stationPos.longitude)
+                mapView.overlays[0] = this
+                mapView.invalidate()
+            }
+        }
+    }
+
+    private fun renderSatPositions(posMap: Map<Satellite, GeoPos>, binding: FragmentMapBinding) {
+        binding.apply {
+            val markers = FolderOverlay()
+            posMap.entries.forEach {
+                Marker(mapView).apply {
+                    setInfoWindow(null)
+                    textLabelFontSize = 24
+                    textLabelBackgroundColor = Color.TRANSPARENT
+                    textLabelForegroundColor =
+                        ContextCompat.getColor(requireContext(), R.color.themeLight)
+                    setTextIcon(it.key.params.name)
+                    setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_CENTER)
+                    try {
+                        position = GeoPoint(it.value.latitude, it.value.longitude)
+                    } catch (exception: IllegalArgumentException) {
+                        Timber.d(exception)
+                    }
+                    setOnMarkerClickListener { _, _ ->
+                        viewModel.selectSatellite(it.key)
+                        return@setOnMarkerClickListener true
+                    }
+                    markers.add(this)
+                }
+            }
+            mapView.overlays[3] = markers
+            mapView.invalidate()
+        }
+    }
+
+    private fun renderSatTrack(satTrack: List<List<GeoPos>>, binding: FragmentMapBinding) {
+        val trackOverlay = FolderOverlay()
+        satTrack.forEach { track ->
+            val trackPoints = track.map { GeoPoint(it.latitude, it.longitude) }
+            Polyline().apply {
+                try {
+                    setPoints(trackPoints)
+                    outlinePaint.set(trackPaint)
+                    trackOverlay.add(this)
+                } catch (exception: IllegalArgumentException) {
+                    Timber.d(exception)
+                }
+            }
+        }
+        binding.mapView.overlays[1] = trackOverlay
+    }
+
+    private fun renderSatFootprint(satFootprint: List<GeoPos>, binding: FragmentMapBinding) {
+        val footprintPoints = satFootprint.map { GeoPoint(it.latitude, it.longitude) }
+        val footprintOverlay = Polygon().apply {
+            fillPaint.set(footprintPaint)
+            outlinePaint.set(footprintPaint)
+            try {
+                this.points = footprintPoints
+            } catch (exception: IllegalArgumentException) {
+                Timber.d(exception)
+            }
+        }
+        binding.mapView.overlays[2] = footprintOverlay
+    }
+
+    private fun renderSatData(mapData: MapData, binding: FragmentMapBinding) {
+        binding.apply {
+            mapDataName.text =
+                String.format(getString(R.string.pat_osm_idName), mapData.catNum, mapData.name)
+            mapDataQth.text = String.format(getString(R.string.map_qth), mapData.qthLoc)
+            mapDataAlt.text = String.format(getString(R.string.pat_altitude), mapData.altitude)
+            mapDataDst.text = String.format(getString(R.string.pat_distance), mapData.range)
+            mapDataVel.text = String.format(getString(R.string.pat_osm_vel), mapData.velocity)
+            mapDataLat.text =
+                String.format(getString(R.string.pat_osm_lat), mapData.osmPos.latitude)
+            mapDataLon.text =
+                String.format(getString(R.string.pat_osm_lon), mapData.osmPos.longitude)
+        }
+        binding.mapView.invalidate()
+    }
+
+    private fun getColorFilter(): ColorMatrixColorFilter {
+        val grayScaleMatrix = ColorMatrix().apply { setSaturation(0f) }
+        val negativeMatrix = ColorMatrix(
+            floatArrayOf(
+                -1f, 0f, 0f, 0f, 255f,
+                0f, -1f, 0f, 0f, 255f,
+                0f, 0f, -1f, 0f, 255f,
+                0f, 0f, 0f, 1f, 0f
+            )
+        )
+        negativeMatrix.preConcat(grayScaleMatrix)
+        return ColorMatrixColorFilter(negativeMatrix)
+    }
+
+    private fun getMinZoom(screenHeight: Int): Double {
+        return MapView.getTileSystem().getLatitudeZoom(maxLat, minLat, screenHeight)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/mapScreen/MapViewModel.kt

@@ -0,0 +1,191 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.mapScreen
+
+import androidx.lifecycle.*
+import com.rtbishop.look4sat.domain.predict.Predictor
+import com.rtbishop.look4sat.domain.DataRepository
+import com.rtbishop.look4sat.framework.PreferencesSource
+import com.rtbishop.look4sat.domain.predict.GeoPos
+import com.rtbishop.look4sat.domain.QthConverter
+import com.rtbishop.look4sat.domain.predict.Satellite
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.*
+import java.util.*
+import javax.inject.Inject
+import kotlin.math.max
+import kotlin.math.min
+
+@HiltViewModel
+class MapViewModel @Inject constructor(
+    private val dataRepository: DataRepository,
+    private val predictor: Predictor,
+    private val preferences: PreferencesSource,
+) : ViewModel() {
+
+    private val stationPos = preferences.loadStationPosition()
+    private var dataUpdateJob: Job? = null
+    private var allSatList = listOf<Satellite>()
+    private lateinit var selectedSat: Satellite
+
+    val stationPosLiveData = liveData {
+        val osmLat = clipLat(stationPos.latitude)
+        val osmLon = clipLon(stationPos.longitude)
+        emit(GeoPos(osmLat, osmLon))
+    }
+
+    private val _satTrack = MutableLiveData<List<List<GeoPos>>>()
+    val satTrack: LiveData<List<List<GeoPos>>> = _satTrack
+
+    private val _satFootprint = MutableLiveData<List<GeoPos>>()
+    val satFootprint: LiveData<List<GeoPos>> = _satFootprint
+
+    private val _satData = MutableLiveData<MapData>()
+    val mapData: LiveData<MapData> = this._satData
+
+    private val _satPositions = MutableLiveData<Map<Satellite, GeoPos>>()
+    val satPositions: LiveData<Map<Satellite, GeoPos>> = _satPositions
+
+    fun shouldUseTextLabels(): Boolean {
+        return preferences.shouldUseTextLabels()
+    }
+
+    fun scrollSelection(decrement: Boolean) {
+        if (allSatList.isNotEmpty()) {
+            val index = allSatList.indexOf(selectedSat)
+            if (decrement) {
+                if (index > 0) selectSatellite(allSatList[index - 1])
+                else selectSatellite(allSatList[allSatList.size - 1])
+            } else {
+                if (index < allSatList.size - 1) selectSatellite(allSatList[index + 1])
+                else selectSatellite(allSatList[0])
+            }
+        }
+    }
+
+    fun selectDefaultSatellite(catnum: Int?) {
+        viewModelScope.launch {
+            dataRepository.getSelectedSatellites().also { satellites ->
+                if (satellites.isNotEmpty()) {
+                    allSatList = satellites
+                    if (catnum == null) {
+                        selectSatellite(satellites.first())
+                    } else {
+                        satellites.find { it.params.catnum == catnum }?.let { selectSatellite(it) }
+                    }
+                }
+            }
+        }
+    }
+
+    fun selectSatellite(satellite: Satellite, updateFreq: Long = 2000) {
+        selectedSat = satellite
+        viewModelScope.launch {
+            dataUpdateJob?.cancelAndJoin()
+            dataUpdateJob = launch {
+                val dateNow = Date()
+                getSatTrack(selectedSat, stationPos, dateNow)
+                while (isActive) {
+                    dateNow.time = System.currentTimeMillis()
+                    getPositions(allSatList, stationPos, dateNow)
+                    getSatFootprint(selectedSat, stationPos, dateNow)
+                    getSatData(selectedSat, stationPos, dateNow)
+                    delay(updateFreq)
+                }
+            }
+        }
+    }
+
+    private suspend fun getSatTrack(satellite: Satellite, pos: GeoPos, date: Date) {
+        val satTracks = mutableListOf<List<GeoPos>>()
+        val currentTrack = mutableListOf<GeoPos>()
+        val endDate = Date(date.time + (satellite.orbitalPeriod * 2.4 * 60000L).toLong())
+        var oldLongitude = 0.0
+        predictor.getSatTrack(satellite, pos, date.time, endDate.time).forEach { satPos ->
+            val osmLat = clipLat(Math.toDegrees(satPos.latitude))
+            val osmLon = clipLon(Math.toDegrees(satPos.longitude))
+            val currentPosition = GeoPos(osmLat, osmLon)
+            if (oldLongitude < -170.0 && currentPosition.longitude > 170.0) {
+                // adding left terminal position
+                currentTrack.add(GeoPos(osmLat, -180.0))
+                val finishedTrack = mutableListOf<GeoPos>().apply { addAll(currentTrack) }
+                satTracks.add(finishedTrack)
+                currentTrack.clear()
+            } else if (oldLongitude > 170.0 && currentPosition.longitude < -170.0) {
+                // adding right terminal position
+                currentTrack.add(GeoPos(osmLat, 180.0))
+                val finishedTrack = mutableListOf<GeoPos>().apply { addAll(currentTrack) }
+                satTracks.add(finishedTrack)
+                currentTrack.clear()
+            }
+            oldLongitude = currentPosition.longitude
+            currentTrack.add(currentPosition)
+        }
+        satTracks.add(currentTrack)
+        _satTrack.postValue(satTracks)
+    }
+
+    private suspend fun getPositions(satellites: List<Satellite>, pos: GeoPos, date: Date) {
+        val positions = mutableMapOf<Satellite, GeoPos>()
+        satellites.forEach { satellite ->
+            val satPos = predictor.getSatPos(satellite, pos, date.time)
+            val osmLat = clipLat(Math.toDegrees(satPos.latitude))
+            val osmLon = clipLon(Math.toDegrees(satPos.longitude))
+            positions[satellite] = GeoPos(osmLat, osmLon)
+        }
+        _satPositions.postValue(positions)
+    }
+
+    private suspend fun getSatFootprint(satellite: Satellite, pos: GeoPos, date: Date) {
+        val satPos = predictor.getSatPos(satellite, pos, date.time)
+        val satFootprint = satPos.getRangeCircle().map { rangePos ->
+            val osmLat = clipLat(rangePos.latitude)
+            val osmLon = clipLon(rangePos.longitude)
+            GeoPos(osmLat, osmLon)
+        }
+        _satFootprint.postValue(satFootprint)
+    }
+
+    private suspend fun getSatData(satellite: Satellite, pos: GeoPos, date: Date) {
+        val satPos = predictor.getSatPos(satellite, pos, date.time)
+        val osmLat = clipLat(Math.toDegrees(satPos.latitude))
+        val osmLon = clipLon(Math.toDegrees(satPos.longitude))
+        val osmPos = GeoPos(osmLat, osmLon)
+        val qthLoc = QthConverter.positionToQth(osmPos.latitude, osmPos.longitude) ?: "-- --"
+        val satData = MapData(
+            satellite, satellite.params.catnum, satellite.params.name, satPos.range,
+            satPos.altitude, satPos.getOrbitalVelocity(), qthLoc, osmPos
+        )
+        _satData.postValue(satData)
+    }
+
+    private fun clipLat(latitude: Double): Double {
+        return clip(latitude, -85.05, 85.05)
+    }
+
+    private fun clipLon(longitude: Double): Double {
+        var result = longitude
+        while (result < -180.0) result += 360.0
+        while (result > 180.0) result -= 360.0
+        return clip(result, -180.0, 180.0)
+    }
+
+    private fun clip(currentValue: Double, minValue: Double, maxValue: Double): Double {
+        return min(max(currentValue, minValue), maxValue)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/passesScreen/PassesAdapter.kt

@@ -0,0 +1,150 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.passesScreen
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.AsyncListDiffer
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.ItemPassGeoBinding
+import com.rtbishop.look4sat.databinding.ItemPassLeoBinding
+import com.rtbishop.look4sat.domain.predict.SatPass
+import java.text.SimpleDateFormat
+import java.util.*
+
+class PassesAdapter(private val isUTC: Boolean, private val clickListener: PassesClickListener) :
+    RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+
+    private val diffCallback = object : DiffUtil.ItemCallback<SatPass>() {
+        override fun areItemsTheSame(oldItem: SatPass, newItem: SatPass): Boolean {
+            return oldItem.catNum == newItem.catNum && oldItem.aosTime == newItem.aosTime
+        }
+
+        override fun areContentsTheSame(oldItem: SatPass, newItem: SatPass): Boolean {
+            return oldItem.progress == newItem.progress
+        }
+    }
+    private val differ = AsyncListDiffer(this, diffCallback)
+
+    interface PassesClickListener {
+        fun navigateToPass(satPass: SatPass)
+    }
+
+    fun submitList(passes: List<SatPass>) {
+        differ.submitList(passes)
+    }
+
+    override fun getItemCount() = differ.currentList.size
+
+    override fun getItemViewType(position: Int): Int {
+        return if (differ.currentList[position].isDeepSpace) 1
+        else 0
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        return if (viewType == 0) {
+            SatPassLeoHolder.from(parent)
+        } else {
+            SatPassGeoHolder.from(parent)
+        }
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        if (holder.itemViewType == 0) {
+            (holder as SatPassLeoHolder).bind(differ.currentList[position], clickListener, isUTC)
+        } else {
+            (holder as SatPassGeoHolder).bind(differ.currentList[position], clickListener)
+        }
+    }
+
+    class SatPassLeoHolder private constructor(private val binding: ItemPassLeoBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        private val satIdFormat = itemView.context.getString(R.string.pass_satId)
+        private val tcaAzFormat = itemView.context.getString(R.string.pass_tcaAz)
+        private val aosAzFormat = itemView.context.getString(R.string.pass_aosAz)
+        private val maxElFormat = itemView.context.getString(R.string.pass_maxEl)
+        private val losAzFormat = itemView.context.getString(R.string.pass_losAz)
+        private val startTimeFormat = itemView.context.getString(R.string.pass_startTime)
+        private val endTimeFormat = itemView.context.getString(R.string.pass_endTime)
+        private val timeZoneUTC = TimeZone.getTimeZone("UTC")
+        private val startFormat = SimpleDateFormat(startTimeFormat, Locale.getDefault())
+        private val endFormat = SimpleDateFormat(endTimeFormat, Locale.getDefault())
+
+        fun bind(satPass: SatPass, listener: PassesClickListener, shouldUseUTC: Boolean) {
+            binding.apply {
+                if (shouldUseUTC) {
+                    startFormat.timeZone = timeZoneUTC
+                    endFormat.timeZone = timeZoneUTC
+                }
+                passLeoName.text = satPass.name
+                passLeoId.text = String.format(satIdFormat, satPass.catNum)
+                passLeoAos.text = String.format(aosAzFormat, satPass.aosAzimuth)
+                passLeoElev.text = String.format(maxElFormat, satPass.maxElevation)
+                passLeoLos.text = String.format(losAzFormat, satPass.losAzimuth)
+                passLeoStart.text = startFormat.format(Date(satPass.aosTime))
+                passLeoTca.text = String.format(tcaAzFormat, satPass.tcaAzimuth)
+                passLeoEnd.text = endFormat.format(Date(satPass.losTime))
+                passLeoProgress.progress = satPass.progress
+            }
+
+            itemView.setOnClickListener {
+                listener.navigateToPass(satPass)
+            }
+        }
+
+        companion object {
+            fun from(parent: ViewGroup): SatPassLeoHolder {
+                val inflater = LayoutInflater.from(parent.context)
+                return SatPassLeoHolder(ItemPassLeoBinding.inflate(inflater, parent, false))
+            }
+        }
+    }
+
+    class SatPassGeoHolder private constructor(private val binding: ItemPassGeoBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        private val satIdFormat = itemView.context.getString(R.string.pass_satId)
+        private val azFormat = itemView.context.getString(R.string.pat_azimuth)
+        private val altFormat = itemView.context.getString(R.string.pat_altitude)
+        private val elevFormat = itemView.context.getString(R.string.pat_elevation)
+
+        fun bind(satPass: SatPass, listener: PassesClickListener) {
+            binding.apply {
+                passGeoName.text = satPass.name
+                passGeoId.text = String.format(satIdFormat, satPass.catNum)
+                passGeoAz.text = String.format(azFormat, satPass.tcaAzimuth)
+                passGeoAlt.text = String.format(altFormat, satPass.altitude)
+                passGeoEl.text = String.format(elevFormat, satPass.maxElevation)
+            }
+
+            itemView.setOnClickListener {
+                listener.navigateToPass(satPass)
+            }
+        }
+
+        companion object {
+            fun from(parent: ViewGroup): SatPassGeoHolder {
+                val inflater = LayoutInflater.from(parent.context)
+                return SatPassGeoHolder(ItemPassGeoBinding.inflate(inflater, parent, false))
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/passesScreen/PassesFragment.kt

@@ -0,0 +1,137 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.passesScreen
+
+import android.Manifest
+import android.os.Bundle
+import android.view.View
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.SimpleItemAnimator
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.FragmentPassesBinding
+import com.rtbishop.look4sat.domain.predict.SatPass
+import com.rtbishop.look4sat.domain.model.DataState
+import com.rtbishop.look4sat.presentation.ItemDivider
+import com.rtbishop.look4sat.presentation.navigateSafe
+import com.rtbishop.look4sat.presentation.toTimerString
+import dagger.hilt.android.AndroidEntryPoint
+import java.util.*
+
+@AndroidEntryPoint
+class PassesFragment : Fragment(R.layout.fragment_passes), PassesAdapter.PassesClickListener {
+
+    private val passesViewModel: PassesViewModel by viewModels()
+    private val permReqContract = ActivityResultContracts.RequestMultiplePermissions()
+    private val locPermFine = Manifest.permission.ACCESS_FINE_LOCATION
+    private val locPermCoarse = Manifest.permission.ACCESS_COARSE_LOCATION
+    private val locPermReq = registerForActivityResult(permReqContract) { permissions ->
+        when {
+            permissions[locPermFine] == true -> passesViewModel.triggerInitialSetup()
+            permissions[locPermCoarse] == true -> passesViewModel.triggerInitialSetup()
+        }
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupComponents(view)
+    }
+
+    private fun setupComponents(view: View) {
+        val passesAdapter = PassesAdapter(passesViewModel.shouldUseUTC(), this)
+        val binding = FragmentPassesBinding.bind(view).apply {
+            passesRecycler.apply {
+                setHasFixedSize(true)
+                adapter = passesAdapter
+                isVerticalScrollBarEnabled = false
+                layoutManager = LinearLayoutManager(context)
+                (itemAnimator as SimpleItemAnimator).supportsChangeAnimations = false
+                addItemDecoration(ItemDivider(R.drawable.rec_divider_dark))
+            }
+            passesRefresh.setOnClickListener { passesViewModel.forceCalculation() }
+        }
+        passesViewModel.passes.observe(viewLifecycleOwner, { passesResult ->
+            handleNewPasses(passesResult, passesAdapter, binding)
+        })
+        passesViewModel.isFirstLaunchDone.observe(viewLifecycleOwner, { setupDone ->
+            if (!setupDone) locPermReq.launch(arrayOf(locPermFine, locPermCoarse))
+        })
+    }
+
+    private fun handleNewPasses(
+        dataState: DataState<List<SatPass>>,
+        passesAdapter: PassesAdapter,
+        binding: FragmentPassesBinding
+    ) {
+        when (dataState) {
+            is DataState.Success -> {
+                passesAdapter.submitList(dataState.data)
+                binding.apply {
+                    passesError.visibility = View.INVISIBLE
+                    passesProgress.visibility = View.INVISIBLE
+                    passesRecycler.visibility = View.VISIBLE
+                }
+                tickMainTimer(dataState.data, binding)
+            }
+            is DataState.Loading -> {
+                binding.apply {
+                    passesTimer.text = 0L.toTimerString()
+                    passesError.visibility = View.INVISIBLE
+                    passesRecycler.visibility = View.INVISIBLE
+                    passesProgress.visibility = View.VISIBLE
+                }
+            }
+            else -> {
+                binding.apply {
+                    passesTimer.text = 0L.toTimerString()
+                    passesProgress.visibility = View.INVISIBLE
+                    passesRecycler.visibility = View.INVISIBLE
+                    passesError.visibility = View.VISIBLE
+                }
+            }
+        }
+    }
+
+    private fun tickMainTimer(passes: List<SatPass>, binding: FragmentPassesBinding) {
+        if (passes.isNotEmpty()) {
+            val timeNow = System.currentTimeMillis()
+            try {
+                val nextPass = passes.first { it.aosTime.minus(timeNow) > 0 }
+                val millisBeforeStart = nextPass.aosTime.minus(timeNow)
+                binding.passesTimer.text = millisBeforeStart.toTimerString()
+            } catch (e: NoSuchElementException) {
+                val lastPass = passes.last()
+                val millisBeforeEnd = lastPass.losTime.minus(timeNow)
+                binding.passesTimer.text = millisBeforeEnd.toTimerString()
+            }
+        } else {
+            binding.passesTimer.text = 0L.toTimerString()
+        }
+    }
+
+    override fun navigateToPass(satPass: SatPass) {
+        if (satPass.progress < 100) {
+            val bundle = bundleOf("catNum" to satPass.catNum, "aosTime" to satPass.aosTime)
+            findNavController().navigateSafe(R.id.action_passes_to_radar, bundle)
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/passesScreen/PassesViewModel.kt

@@ -0,0 +1,122 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.passesScreen
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.rtbishop.look4sat.domain.predict.Predictor
+import com.rtbishop.look4sat.domain.predict.SatPass
+import com.rtbishop.look4sat.domain.model.DataState
+import com.rtbishop.look4sat.domain.DataRepository
+import com.rtbishop.look4sat.framework.PreferencesSource
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.collect
+import java.util.*
+import javax.inject.Inject
+
+@HiltViewModel
+class PassesViewModel @Inject constructor(
+    private val dataRepository: DataRepository,
+    private val predictor: Predictor,
+    private val preferences: PreferencesSource
+) : ViewModel() {
+
+    private val _passes = MutableLiveData<DataState<List<SatPass>>>(DataState.Loading)
+    private val _isFirstLaunchDone = MutableLiveData<Boolean>()
+    private var passesProcessing: Job? = null
+    val passes: LiveData<DataState<List<SatPass>>> = _passes
+    val isFirstLaunchDone: LiveData<Boolean> = _isFirstLaunchDone
+
+    init {
+        if (preferences.isSetupDone()) {
+            viewModelScope.launch {
+                _passes.postValue(DataState.Loading)
+                val timeNow = System.currentTimeMillis()
+                val satellites = dataRepository.getSelectedSatellites()
+                val stationPos = preferences.loadStationPosition()
+                val hoursAhead = preferences.getHoursAhead()
+                val minElev = preferences.getMinElevation()
+                predictor.triggerCalculation(satellites, stationPos, timeNow, hoursAhead, minElev)
+            }
+        } else {
+            _isFirstLaunchDone.value = false
+        }
+        viewModelScope.launch {
+            predictor.passes.collect { passes ->
+                passesProcessing?.cancelAndJoin()
+                passesProcessing = viewModelScope.launch { tickPasses(passes) }
+            }
+        }
+    }
+
+    fun triggerInitialSetup() {
+        preferences.updatePositionFromGPS()
+        viewModelScope.launch {
+            _passes.postValue(DataState.Loading)
+            val satellites = dataRepository.getSelectedSatellites()
+            val stationPos = preferences.loadStationPosition()
+            val hoursAhead = preferences.getHoursAhead()
+            val minElev = preferences.getMinElevation()
+            dataRepository.updateDataFromWeb()
+            dataRepository.updateSelection(isSelected = true)
+            predictor.forceCalculation(satellites, stationPos, Date().time, hoursAhead, minElev)
+            preferences.setSetupDone()
+            _isFirstLaunchDone.value = true
+        }
+    }
+
+    fun forceCalculation() {
+        viewModelScope.launch {
+            _passes.postValue(DataState.Loading)
+            passesProcessing?.cancelAndJoin()
+            val timeNow = System.currentTimeMillis()
+            val satellites = dataRepository.getSelectedSatellites()
+            val stationPos = preferences.loadStationPosition()
+            val hoursAhead = preferences.getHoursAhead()
+            val minElev = preferences.getMinElevation()
+            predictor.forceCalculation(satellites, stationPos, timeNow, hoursAhead, minElev)
+        }
+    }
+
+    fun shouldUseUTC(): Boolean {
+        return preferences.shouldUseUTC()
+    }
+
+    private suspend fun tickPasses(passes: List<SatPass>) = withContext(Dispatchers.Default) {
+        var currentPasses = passes
+        while (isActive) {
+            val timeNow = System.currentTimeMillis()
+            currentPasses.forEach { pass ->
+                if (!pass.isDeepSpace) {
+                    val timeStart = pass.aosTime
+                    if (timeNow > timeStart) {
+                        val deltaNow = timeNow.minus(timeStart).toFloat()
+                        val deltaTotal = pass.losTime.minus(timeStart).toFloat()
+                        pass.progress = ((deltaNow / deltaTotal) * 100).toInt()
+                    }
+                }
+            }
+            currentPasses = currentPasses.filter { it.progress < 100 }
+            _passes.postValue(DataState.Success(currentPasses.map { it.copy() }))
+            delay(1000)
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/radarScreen/RadarData.kt

@@ -0,0 +1,22 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.radarScreen
+
+import com.rtbishop.look4sat.domain.predict.SatPos
+
+data class RadarData(val satPos: SatPos, val satTrack: List<SatPos> = emptyList())

app/src/main/java/com/rtbishop/look4sat/presentation/radarScreen/RadarFragment.kt

@@ -0,0 +1,167 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.radarScreen
+
+import android.os.Bundle
+import android.view.View
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.SimpleItemAnimator
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.FragmentRadarBinding
+import com.rtbishop.look4sat.framework.PreferencesSource
+import com.rtbishop.look4sat.domain.predict.SatPass
+import com.rtbishop.look4sat.domain.predict.SatPos
+import com.rtbishop.look4sat.presentation.ItemDivider
+import com.rtbishop.look4sat.presentation.navigateSafe
+import com.rtbishop.look4sat.presentation.toTimerString
+import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class RadarFragment : Fragment(R.layout.fragment_radar) {
+
+    @Inject
+    lateinit var preferences: PreferencesSource
+    private val viewModel: RadarViewModel by viewModels()
+    private var radarView: RadarView? = null
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        FragmentRadarBinding.bind(view).apply {
+            val transAdapter = TransmittersAdapter()
+            radarRecycler.apply {
+                setHasFixedSize(true)
+                adapter = transAdapter
+                isVerticalScrollBarEnabled = false
+                layoutManager = LinearLayoutManager(context)
+                (itemAnimator as SimpleItemAnimator).supportsChangeAnimations = false
+                addItemDecoration(ItemDivider(R.drawable.rec_divider_dark))
+            }
+            setupObservers(transAdapter, this)
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        viewModel.enableSensor()
+    }
+
+    override fun onPause() {
+        super.onPause()
+        viewModel.disableSensor()
+    }
+
+    private fun setupObservers(
+        transmittersAdapter: TransmittersAdapter,
+        binding: FragmentRadarBinding
+    ) {
+        val catNum = requireArguments().getInt("catNum")
+        val aosTime = requireArguments().getLong("aosTime")
+        viewModel.getPass(catNum, aosTime).observe(viewLifecycleOwner) { pass ->
+            radarView = RadarView(requireContext()).apply {
+                setShowAim(preferences.shouldUseCompass())
+                setScanning(preferences.shouldShowSweep())
+            }
+            binding.radarFrame.addView(radarView)
+            viewModel.radarData.observe(viewLifecycleOwner, { passData ->
+                radarView?.setPosition(passData.satPos)
+                radarView?.setPositions(passData.satTrack)
+                setPassText(pass, passData.satPos, binding)
+            })
+            viewModel.transmitters.observe(viewLifecycleOwner, { list ->
+                if (list.isNotEmpty()) {
+                    transmittersAdapter.submitList(list)
+                    binding.radarRecycler.visibility = View.VISIBLE
+                    binding.radarRecyclerMsg.visibility = View.INVISIBLE
+                } else {
+                    binding.radarRecycler.visibility = View.INVISIBLE
+                    binding.radarRecyclerMsg.visibility = View.VISIBLE
+                }
+                radarView?.invalidate()
+            })
+            viewModel.orientation.observe(viewLifecycleOwner, { orientation ->
+                radarView?.setOrientation(
+                    orientation.first,
+                    orientation.second,
+                    orientation.third
+                )
+            })
+            binding.radarToMapButton.setOnClickListener {
+                val bundle = bundleOf("catNum" to pass.catNum)
+                findNavController().navigateSafe(R.id.action_radar_to_map, bundle)
+            }
+        }
+
+//        binding.radarNotifyButton.setOnClickListener {
+//            this.context?.let { context ->
+//
+//                val choicesList = arrayOf(
+//                    getString(R.string.notification_on_start_pass),
+//                    getString(R.string.notification_5_min_before),
+//                    getString(R.string.notification_10_min_before),
+//                    getString(R.string.notification_15_min_before),
+//                )
+//
+//                MaterialAlertDialogBuilder(context)
+//                    .setTitle(getString(R.string.notification_title))
+//                    .setSingleChoiceItems(choicesList, -1) { dialog, which ->
+//                        // TODO in this place should set a notification by NotificationBuilder
+//                        Toast.makeText(context, "Reminder was saved", Toast.LENGTH_SHORT).show()
+//                        dialog.dismiss()
+//                    }
+//                    .setNegativeButton(getString(R.string.btn_cancel)) { _, _ ->
+//                        // noop
+//                    }
+//                    .show()
+//            }
+//        }
+    }
+
+    private fun setPassText(satPass: SatPass, satPos: SatPos, binding: FragmentRadarBinding) {
+        val timeNow = System.currentTimeMillis()
+        val polarAz = getString(R.string.pat_azimuth)
+        val polarEl = getString(R.string.pat_elevation)
+        val polarRng = getString(R.string.pat_distance)
+        val polarAlt = getString(R.string.pat_altitude)
+        binding.radarAz.text = String.format(polarAz, Math.toDegrees(satPos.azimuth))
+        binding.radarEl.text = String.format(polarEl, Math.toDegrees(satPos.elevation))
+        binding.radarDst.text = String.format(polarRng, satPos.range)
+        binding.radarAlt.text = String.format(polarAlt, satPos.altitude)
+        binding.radarName.text = satPass.name
+
+        if (!satPass.isDeepSpace) {
+            if (timeNow < satPass.aosTime) {
+                val millisBeforeStart = satPass.aosTime.minus(timeNow)
+                binding.radarTimer.text = millisBeforeStart.toTimerString()
+            } else {
+                val millisBeforeEnd = satPass.losTime.minus(timeNow)
+                binding.radarTimer.text = millisBeforeEnd.toTimerString()
+                if (timeNow > satPass.losTime) {
+                    binding.radarTimer.text = 0L.toTimerString()
+                    findNavController().navigateSafe(R.id.action_radar_to_passes)
+                }
+            }
+        } else {
+            binding.radarTimer.text = 0L.toTimerString()
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/radarScreen/RadarView.kt

@@ -0,0 +1,265 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.radarScreen
+
+import android.content.Context
+import android.graphics.*
+import android.view.View
+import androidx.core.content.ContextCompat
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.domain.predict.SatPos
+import kotlin.math.cos
+import kotlin.math.min
+import kotlin.math.sin
+
+class RadarView(context: Context) : View(context) {
+
+    private val defaultColor = ContextCompat.getColor(context, R.color.themeLight)
+    private val scale = resources.displayMetrics.density
+    private val radarWidth = resources.displayMetrics.widthPixels
+    private val radarRadius = radarWidth * 0.48f
+    private val piDiv2 = Math.PI / 2.0
+    private val strokeSize = scale * 2f
+    private var position: SatPos? = null
+    private var positions: List<SatPos> = emptyList()
+
+    private var radarColor = ContextCompat.getColor(context, R.color.greyLight)
+    private var radarCircleNum = 3
+    private var radarPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = radarColor
+        style = Paint.Style.STROKE
+        strokeWidth = strokeSize
+    }
+
+    private var shouldShowSweep = true
+    private var sweepColor = defaultColor
+    private var sweepDegrees = 0f
+    private var sweepSpeed = 30.0f
+    private var sweepPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = sweepColor
+    }
+
+    private var shouldShowBeacons = true
+    private var beaconColor = defaultColor
+    private var beaconSize = scale * 7f
+    private var beaconPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = beaconColor
+        style = Paint.Style.FILL
+    }
+
+    private var radarTextSize = scale * 16f
+    private var radarTextColor = defaultColor
+    private var radarTextPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = radarTextColor
+        textSize = radarTextSize
+    }
+
+    private var isTrackCreated = false
+    private val trackPath: Path = Path()
+    private var trackPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = Color.RED
+        style = Paint.Style.STROKE
+        strokeWidth = strokeSize
+    }
+
+    private val arrowPath = Path()
+    private var arrowPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = ContextCompat.getColor(context, R.color.themeLight)
+        style = Paint.Style.FILL
+        strokeWidth = strokeSize
+    }
+
+    private var shouldShowAim = true
+    private var aimColor = Color.RED
+    private var aimPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        color = aimColor
+        style = Paint.Style.STROKE
+        strokeWidth = strokeSize
+    }
+
+    private var shouldRotateRadar = true
+    private var azimuth: Float = 0f
+    private var pitch: Float = 0f
+    private var roll: Float = 0f
+
+    fun setScanning(isScanning: Boolean) {
+        shouldShowSweep = isScanning
+    }
+
+    fun setPosition(position: SatPos) {
+        this.position = position
+    }
+
+    fun setPositions(positions: List<SatPos>) {
+        this.positions = positions
+    }
+
+    fun setShowAim(showAim: Boolean) {
+        shouldShowAim = showAim
+    }
+
+    fun setOrientation(azimuth: Float, pitch: Float, roll: Float) {
+        this.azimuth = azimuth
+        this.pitch = pitch
+        this.roll = roll
+        if (shouldRotateRadar) {
+            this.rotation = -azimuth
+        }
+    }
+
+    override fun onDraw(canvas: Canvas) {
+        val radarWidth = width - paddingLeft - paddingRight
+        val radarHeight = height - paddingTop - paddingBottom
+        val radarRadius = min(width, height) * 0.49f
+        val cx = paddingLeft + radarWidth / 2f
+        val cy = paddingTop + radarHeight / 2f
+
+        if (positions.isNotEmpty() && !isTrackCreated) {
+            createPassTrajectory()
+            createPassTrajectoryArrow()
+            isTrackCreated = true
+        }
+
+        canvas.drawColor(ContextCompat.getColor(context, R.color.greyDark))
+        drawRadarCircle(canvas, cx, cy, radarRadius)
+        drawRadarCross(canvas, cx, cy, radarRadius)
+        drawRadarText(canvas, cx, radarRadius)
+
+        canvas.translate(cx, cy)
+        if (positions.isNotEmpty()) {
+            canvas.drawPath(trackPath, trackPaint)
+            canvas.drawPath(trackPath, arrowPaint)
+        }
+        if (shouldShowBeacons) {
+            drawSatellite(canvas)
+        }
+        if (shouldShowAim) {
+            drawCrosshair(canvas, azimuth, pitch)
+        }
+        if (shouldShowSweep) {
+            canvas.translate(-cx, -cy)
+            drawRadarSweep(canvas, cx, cy, radarRadius)
+            sweepDegrees = (sweepDegrees + 360 / sweepSpeed / 60) % 360
+        }
+        invalidate()
+    }
+
+    private fun drawRadarCircle(canvas: Canvas, cx: Float, cy: Float, radius: Float) {
+        for (i in 0 until radarCircleNum) {
+            canvas.drawCircle(cx, cy, radius - radius / radarCircleNum * i, radarPaint)
+        }
+    }
+
+    private fun drawRadarCross(canvas: Canvas, cx: Float, cy: Float, radius: Float) {
+        canvas.drawLine(cx - radius, cy, cx + radius, cy, radarPaint)
+        canvas.drawLine(cx, cy - radius, cx, cy + radius, radarPaint)
+    }
+
+    private fun drawRadarText(canvas: Canvas, cx: Float, radius: Float) {
+        for (i in 0 until radarCircleNum) {
+            val degText = " ${(90 / radarCircleNum) * (radarCircleNum - i)}°"
+            canvas.drawText(degText, cx, radius - radius / radarCircleNum * i, radarTextPaint)
+        }
+    }
+
+    private fun drawSatellite(canvas: Canvas) {
+        position?.let { satPos ->
+            if (satPos.elevation > 0) {
+                val satX = sph2CartX(satPos.azimuth, satPos.elevation, radarRadius.toDouble())
+                val satY = sph2CartY(satPos.azimuth, satPos.elevation, radarRadius.toDouble())
+                canvas.drawCircle(satX, -satY, beaconSize, beaconPaint)
+            }
+        }
+    }
+
+    private fun drawCrosshair(canvas: Canvas, azimuth: Float, pitch: Float) {
+        val azimuthRad = Math.toRadians(azimuth.toDouble())
+        val tmpElevation = Math.toRadians(pitch.toDouble())
+        val elevationRad = if (tmpElevation > 0.0) 0.0 else tmpElevation
+        val crossX = sph2CartX(azimuthRad, -elevationRad, radarRadius.toDouble())
+        val crossY = sph2CartY(azimuthRad, -elevationRad, radarRadius.toDouble())
+        canvas.drawLine(crossX - radarTextSize, -crossY, crossX + radarTextSize, -crossY, aimPaint)
+        canvas.drawLine(crossX, -crossY - radarTextSize, crossX, -crossY + radarTextSize, aimPaint)
+        canvas.drawCircle(crossX, -crossY, radarTextSize / 2, aimPaint)
+    }
+
+    private fun sph2CartX(azimuth: Double, elevation: Double, r: Double): Float {
+        val radius = r * (piDiv2 - elevation) / piDiv2
+        return (radius * cos(piDiv2 - azimuth)).toFloat()
+    }
+
+    private fun sph2CartY(azimuth: Double, elevation: Double, r: Double): Float {
+        val radius = r * (piDiv2 - elevation) / piDiv2
+        return (radius * sin(piDiv2 - azimuth)).toFloat()
+    }
+
+    private fun createPassTrajectory() {
+        positions.forEachIndexed { index, satPos ->
+            val passX = sph2CartX(satPos.azimuth, satPos.elevation, radarRadius.toDouble())
+            val passY = sph2CartY(satPos.azimuth, satPos.elevation, radarRadius.toDouble())
+            if (index == 0) {
+                trackPath.moveTo(passX, -passY)
+            } else {
+                trackPath.lineTo(passX, -passY)
+            }
+        }
+    }
+
+    private fun createPassTrajectoryArrow() {
+        val radius = beaconSize
+        val sides = 3
+        val angle = 2.0 * Math.PI / sides
+        arrowPath.moveTo((radius * cos(angle)).toFloat(), (radius * sin(angle)).toFloat())
+        for (i in 1 until sides) {
+            val x = (radius * cos(angle - angle * i)).toFloat()
+            val y = (radius * sin(angle - angle * i)).toFloat()
+            arrowPath.lineTo(x, y)
+        }
+        arrowPath.close()
+        val trackLength = PathMeasure(trackPath, false).length
+        val quarter = trackLength / 4f
+        val center = trackLength / 2f
+        val effect = PathDashPathEffect(arrowPath, center, quarter, PathDashPathEffect.Style.ROTATE)
+        arrowPaint.pathEffect = effect
+    }
+
+    private fun drawRadarSweep(canvas: Canvas, cx: Float, cy: Float, radius: Float) {
+        val sweepGradient = SweepGradient(
+            cx,
+            cy,
+            intArrayOf(
+                Color.TRANSPARENT,
+                changeAlpha(sweepColor, 0),
+                changeAlpha(sweepColor, 164),
+                changeAlpha(sweepColor, 255),
+                changeAlpha(sweepColor, 255)
+            ),
+            floatArrayOf(0.0f, 0.55f, 0.996f, 0.999f, 1f)
+        )
+        sweepPaint.shader = sweepGradient
+        canvas.rotate(-90 + sweepDegrees, cx, cy)
+        canvas.drawCircle(cx, cy, radius, sweepPaint)
+    }
+
+    private fun changeAlpha(color: Int, alpha: Int): Int {
+        val red = Color.red(color)
+        val green = Color.green(color)
+        val blue = Color.blue(color)
+        return Color.argb(alpha, red, green, blue)
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/radarScreen/RadarViewModel.kt

@@ -0,0 +1,120 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.radarScreen
+
+import androidx.lifecycle.*
+import com.rtbishop.look4sat.domain.DataReporter
+import com.rtbishop.look4sat.domain.DataRepository
+import com.rtbishop.look4sat.domain.predict.Predictor
+import com.rtbishop.look4sat.domain.predict.SatPass
+import com.rtbishop.look4sat.domain.predict.SatPos
+import com.rtbishop.look4sat.domain.model.Transmitter
+import com.rtbishop.look4sat.framework.OrientationSource
+import com.rtbishop.look4sat.framework.PreferencesSource
+import com.rtbishop.look4sat.presentation.round
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import java.util.*
+import javax.inject.Inject
+
+@HiltViewModel
+class RadarViewModel @Inject constructor(
+    private val orientationSource: OrientationSource,
+    private val preferences: PreferencesSource,
+    private val predictor: Predictor,
+    private val dataRepository: DataRepository,
+    private val dataReporter: DataReporter
+) : ViewModel(), OrientationSource.OrientationListener {
+
+    private val stationPos = preferences.loadStationPosition()
+    private val _passData = MutableLiveData<RadarData>()
+    private val _transmitters = MutableLiveData<List<Transmitter>>()
+    private val _orientation = MutableLiveData<Triple<Float, Float, Float>>()
+    val radarData: LiveData<RadarData> = _passData
+    val transmitters: LiveData<List<Transmitter>> = _transmitters
+    val orientation: LiveData<Triple<Float, Float, Float>> = _orientation
+
+    fun getPass(catNum: Int, aosTime: Long) = liveData {
+        predictor.passes.collect { passes ->
+            val pass = passes.find { it.catNum == catNum && it.aosTime == aosTime }
+            pass?.let { satPass ->
+                emit(satPass)
+                sendPassData(satPass)
+                processTransmitters(satPass)
+            }
+        }
+    }
+
+    fun enableSensor() {
+        if (preferences.shouldUseCompass()) orientationSource.startListening(this)
+    }
+
+    fun disableSensor() {
+        if (preferences.shouldUseCompass()) orientationSource.stopListening()
+    }
+
+    override fun onOrientationChanged(azimuth: Float, pitch: Float, roll: Float) {
+        _orientation.value = Triple(azimuth + preferences.getMagDeclination(), pitch, roll)
+    }
+
+    private fun sendPassData(satPass: SatPass) {
+        viewModelScope.launch {
+            var satTrack: List<SatPos> = emptyList()
+            if (!satPass.isDeepSpace) {
+                val startDate = satPass.aosTime
+                val endDate = satPass.losTime
+                satTrack = predictor.getSatTrack(satPass.satellite, stationPos, startDate, endDate)
+            }
+            while (isActive) {
+                val satPos = predictor.getSatPos(satPass.satellite, stationPos, Date().time)
+                if (preferences.isRotatorEnabled()) {
+                    val server = preferences.getRotatorServer().first
+                    val port = preferences.getRotatorServer().second
+                    val azimuth = Math.toDegrees(satPos.azimuth).round(1)
+                    val elevation = Math.toDegrees(satPos.elevation).round(1)
+                    dataReporter.reportRotation(server, port, azimuth, elevation)
+                }
+                _passData.postValue(RadarData(satPos, satTrack))
+                delay(1000)
+            }
+        }
+    }
+
+    private fun processTransmitters(satPass: SatPass) {
+        viewModelScope.launch {
+            val transmitters = dataRepository.getTransmitters(satPass.catNum)
+            while (isActive) {
+                val satPos = predictor.getSatPos(satPass.satellite, stationPos, Date().time)
+                val copiedList = transmitters.map { it.copy() }
+                copiedList.forEach { transmitter ->
+                    transmitter.downlink?.let {
+                        transmitter.downlink = satPos.getDownlinkFreq(it)
+                    }
+                    transmitter.uplink?.let {
+                        transmitter.uplink = satPos.getUplinkFreq(it)
+                    }
+                }
+                _transmitters.postValue(copiedList.map { it.copy() })
+                delay(1000)
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/radarScreen/TransmittersAdapter.kt

@@ -0,0 +1,110 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.radarScreen
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.AsyncListDiffer
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.ItemTransBinding
+import com.rtbishop.look4sat.domain.model.Transmitter
+import java.util.*
+
+class TransmittersAdapter : RecyclerView.Adapter<TransmittersAdapter.TransHolder>() {
+
+    private val diffCallback = object : DiffUtil.ItemCallback<Transmitter>() {
+        override fun areItemsTheSame(oldItem: Transmitter, newItem: Transmitter): Boolean {
+            return oldItem.uuid == newItem.uuid
+        }
+
+        override fun areContentsTheSame(oldItem: Transmitter, newItem: Transmitter): Boolean {
+            return oldItem.downlink == newItem.downlink
+        }
+    }
+    private val differ = AsyncListDiffer(this, diffCallback)
+
+    fun submitList(transmitters: List<Transmitter>) {
+        differ.submitList(transmitters)
+    }
+
+    override fun getItemCount() = differ.currentList.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TransHolder {
+        return TransHolder.from(parent)
+    }
+
+    override fun onBindViewHolder(holder: TransHolder, position: Int) {
+        holder.bind(differ.currentList[position])
+    }
+
+    class TransHolder private constructor(private val binding: ItemTransBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        private val divider = 1000000f
+        private val strNo = itemView.context.getString(R.string.no)
+        private val strYes = itemView.context.getString(R.string.yes)
+        private val mode = itemView.context.getString(R.string.trans_mode)
+        private val formatLink = itemView.context.getString(R.string.trans_link_low)
+        private val formatLinkNull = itemView.context.getString(R.string.trans_no_link)
+        private val isInverted = itemView.context.getString(R.string.trans_inverted)
+
+        fun bind(transmitter: Transmitter) {
+            binding.transDesc.text = transmitter.info
+
+            transmitter.downlink.let { downlink ->
+                if (downlink != null) {
+                    val downlinkFreq = downlink / divider
+                    binding.transDownlink.text =
+                        String.format(Locale.ENGLISH, formatLink, downlinkFreq)
+                } else {
+                    binding.transDownlink.text = formatLinkNull
+                }
+            }
+
+            transmitter.uplink.let { uplink ->
+                if (uplink != null) {
+                    val uplinkFreq = uplink / divider
+                    binding.transUplink.text = String.format(Locale.ENGLISH, formatLink, uplinkFreq)
+                } else {
+                    binding.transUplink.text = formatLinkNull
+                }
+            }
+
+            if (transmitter.mode != null) {
+                binding.transMode.text = String.format(mode, transmitter.mode)
+            } else {
+                binding.transMode.text = String.format(mode, strNo)
+            }
+
+            if (transmitter.isInverted) {
+                binding.transInverted.text = String.format(isInverted, strYes)
+            } else {
+                binding.transInverted.text = String.format(isInverted, strNo)
+            }
+        }
+
+        companion object {
+            fun from(parent: ViewGroup): TransHolder {
+                val inflater = LayoutInflater.from(parent.context)
+                return TransHolder(ItemTransBinding.inflate(inflater, parent, false))
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/settingsScreen/SettingsFragment.kt

@@ -0,0 +1,124 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.settingsScreen
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.text.InputType
+import android.view.View
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.content.ContextCompat
+import androidx.preference.EditTextPreference
+import androidx.preference.Preference
+import androidx.preference.PreferenceFragmentCompat
+import com.google.android.material.snackbar.Snackbar
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.framework.PreferencesSource
+import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class SettingsFragment : PreferenceFragmentCompat() {
+
+    @Inject
+    lateinit var preferences: PreferencesSource
+
+    private val permReqContract = ActivityResultContracts.RequestMultiplePermissions()
+    private val locPermFine = Manifest.permission.ACCESS_FINE_LOCATION
+    private val locPermCoarse = Manifest.permission.ACCESS_COARSE_LOCATION
+    private val locPermReq = registerForActivityResult(permReqContract) { permissions ->
+        when {
+            permissions[locPermFine] == true -> updatePositionFromGPS()
+            permissions[locPermCoarse] == true -> updatePositionFromGPS()
+            else -> showSnack(getString(R.string.pref_pos_gps_error))
+        }
+    }
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.preference, rootKey)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        findPreference<Preference>(PreferencesSource.keyPositionGPS)?.apply {
+            setOnPreferenceClickListener {
+                updatePositionFromGPS()
+                return@setOnPreferenceClickListener true
+            }
+        }
+
+        findPreference<Preference>(PreferencesSource.keyPositionQTH)?.apply {
+            setOnPreferenceChangeListener { _, newValue ->
+                updatePositionFromQth(newValue.toString())
+            }
+        }
+
+        findPreference<EditTextPreference>(PreferencesSource.keyRotatorAddress)?.apply {
+            setOnPreferenceChangeListener { _, newValue ->
+                val ip4 = "^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\\.(?!\$)|\$)){4}\$"
+                if (newValue.toString().matches(ip4.toRegex())) {
+                    return@setOnPreferenceChangeListener true
+                } else {
+                    showSnack(getString(R.string.tracking_rotator_address_invalid))
+                    return@setOnPreferenceChangeListener false
+                }
+            }
+        }
+
+        findPreference<EditTextPreference>(PreferencesSource.keyRotatorPort)?.apply {
+            setOnBindEditTextListener { it.inputType = InputType.TYPE_CLASS_NUMBER }
+            setOnPreferenceChangeListener { _, newValue ->
+                val portValue = newValue.toString()
+                if (portValue.isNotEmpty() && portValue.toInt() in 1024..65535) {
+                    return@setOnPreferenceChangeListener true
+                } else {
+                    showSnack(getString(R.string.tracking_rotator_port_invalid))
+                    return@setOnPreferenceChangeListener false
+                }
+            }
+        }
+    }
+
+    private fun updatePositionFromQth(qthString: String): Boolean {
+        return if (preferences.updatePositionFromQTH(qthString)) {
+            showSnack(getString(R.string.pref_pos_success))
+            true
+        } else {
+            showSnack(getString(R.string.pref_pos_qth_error))
+            false
+        }
+    }
+
+    private fun updatePositionFromGPS() {
+        val locPermString = Manifest.permission.ACCESS_FINE_LOCATION
+        val locPermResult = ContextCompat.checkSelfPermission(requireContext(), locPermString)
+        if (locPermResult == PackageManager.PERMISSION_GRANTED) {
+            if (preferences.updatePositionFromGPS()) {
+                showSnack(getString(R.string.pref_pos_success))
+            } else {
+                showSnack(getString(R.string.pref_pos_gps_null))
+            }
+        } else locPermReq.launch(arrayOf(locPermFine, locPermCoarse))
+    }
+
+    private fun showSnack(message: String) {
+        Snackbar.make(requireView(), message, Snackbar.LENGTH_SHORT).show()
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/sourcesScreen/SourcesAdapter.kt

@@ -0,0 +1,70 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.sourcesScreen
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.core.widget.doOnTextChanged
+import androidx.recyclerview.widget.RecyclerView
+import com.rtbishop.look4sat.databinding.ItemSourceBinding
+import com.rtbishop.look4sat.framework.model.Source
+
+class SourcesAdapter(private val sources: MutableList<Source> = mutableListOf()) :
+    RecyclerView.Adapter<SourcesAdapter.TleSourceHolder>() {
+
+    fun getSources(): List<Source> {
+        return sources.filter { it.sourceUrl.contains("https://") }
+    }
+
+    fun setSources(list: List<Source>) {
+        sources.clear()
+        sources.addAll(list)
+    }
+
+    fun addSource() {
+        sources.add(Source())
+        notifyItemInserted(itemCount - 1)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TleSourceHolder {
+        val binding = ItemSourceBinding
+            .inflate(LayoutInflater.from(parent.context), parent, false)
+        return TleSourceHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: TleSourceHolder, position: Int) {
+        holder.bind(sources[position])
+    }
+
+    override fun getItemCount(): Int {
+        return sources.size
+    }
+
+    inner class TleSourceHolder(private val binding: ItemSourceBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(source: Source) {
+            binding.sourceUrl.setText(source.sourceUrl)
+            binding.sourceUrl.doOnTextChanged { txt, _, _, _ -> source.sourceUrl = txt.toString() }
+            binding.sourceBtn.setOnClickListener {
+                sources.remove(source)
+                notifyItemRemoved(adapterPosition)
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/sourcesScreen/SourcesDialog.kt

@@ -0,0 +1,67 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2021 Arty Bishop (bishop.arty@gmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.presentation.sourcesScreen
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.view.WindowManager
+import androidx.appcompat.app.AppCompatDialogFragment
+import androidx.fragment.app.viewModels
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.DialogSourcesBinding
+import com.rtbishop.look4sat.framework.model.Source
+import com.rtbishop.look4sat.presentation.setNavResult
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class SourcesDialog : AppCompatDialogFragment() {
+
+    private val viewModel: SourcesViewModel by viewModels()
+
+    override fun onCreateView(inflater: LayoutInflater, group: ViewGroup?, state: Bundle?): View? {
+        return inflater.inflate(R.layout.dialog_sources, group, false)
+    }
+
+    override fun onViewCreated(view: View, state: Bundle?) {
+        super.onViewCreated(view, state)
+        viewModel.sources.observe(viewLifecycleOwner, { sources ->
+            val adapter = SourcesAdapter().apply { setSources(sources.map { Source(it) }) }
+            DialogSourcesBinding.bind(view).apply {
+                dialog?.window?.setLayout(
+                    WindowManager.LayoutParams.MATCH_PARENT,
+                    WindowManager.LayoutParams.WRAP_CONTENT
+                )
+                sourcesRecycler.apply {
+                    this.adapter = adapter
+                    layoutManager = LinearLayoutManager(requireContext())
+                }
+                sourcesBtnAdd.setOnClickListener {
+                    adapter.addSource()
+                }
+                sourcesBtnPos.setOnClickListener {
+                    setNavResult("sources", adapter.getSources().map { it.sourceUrl })
+                    dismiss()
+                }
+                sourcesBtnNeg.setOnClickListener { dismiss() }
+            }
+        })
+    }
+}

app/src/main/java/com/rtbishop/look4sat/presentation/sourcesScreen/SourcesViewModel.kt

@@ -0,0 +1,15 @@
+package com.rtbishop.look4sat.presentation.sourcesScreen
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.liveData
+import com.rtbishop.look4sat.domain.DataRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import javax.inject.Inject
+
+@HiltViewModel
+class SourcesViewModel @Inject constructor(dataRepository: DataRepository) : ViewModel() {
+
+    val sources = liveData {
+        emit(dataRepository.getWebSources())
+    }
+}

app/src/main/java/com/rtbishop/look4sat/repo/DefaultRepository.kt

@@ -1,97 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.repo
-
-import android.content.ContentResolver
-import android.net.Uri
-import com.github.amsacode.predict4java.TLE
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-import com.rtbishop.look4sat.network.RemoteSource
-import com.rtbishop.look4sat.persistence.LocalSource
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-import javax.inject.Inject
-
-class DefaultRepository @Inject constructor(
-    private val resolver: ContentResolver,
-    private val localSource: LocalSource,
-    private val remoteSource: RemoteSource
-) : Repository {
-
-    override suspend fun updateEntriesFromFile(tleUri: Uri) {
-        withContext(Dispatchers.IO) {
-            resolver.openInputStream(tleUri)?.use { stream ->
-                val tleList = TLE.importSat(stream)
-                val entries = tleList.map { SatEntry(it) }
-                localSource.clearEntries()
-                localSource.insertEntries(entries)
-            }
-        }
-    }
-
-    override suspend fun updateEntriesFromUrl(urlList: List<TleSource>) {
-        withContext(Dispatchers.IO) {
-            val streams = remoteSource.fetchTleStreams(urlList)
-            val entries = mutableListOf<SatEntry>()
-            streams.forEach {
-                val list = TLE.importSat(it).map { tle -> SatEntry(tle) }
-                entries.addAll(list)
-            }
-            localSource.clearEntries()
-            localSource.insertEntries(entries)
-        }
-    }
-
-    override suspend fun getAllEntries(): List<SatEntry> {
-        return localSource.getAllEntries()
-    }
-
-    override suspend fun getSelectedEntries(): List<SatEntry> {
-        return localSource.getSelectedEntries()
-    }
-
-    override suspend fun updateEntriesSelection(catNumList: List<Int>) {
-        localSource.updateEntriesSelection(catNumList)
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    override suspend fun updateTransmitters() {
-        localSource.clearTransmitters()
-        localSource.insertTransmitters(remoteSource.fetchTransmitters())
-    }
-
-    override suspend fun getTransmittersByCatNum(catNum: Int): List<Transmitter> {
-        return localSource.getTransmittersByCatNum(catNum)
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    override suspend fun updateSources(sources: List<TleSource>) {
-        localSource.clearSources()
-        localSource.insertSources(sources)
-    }
-
-    override suspend fun getSources(): List<TleSource> {
-        return localSource.getSources()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/repo/Repository.kt

@@ -1,31 +0,0 @@
-package com.rtbishop.look4sat.repo
-
-import android.net.Uri
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.data.Transmitter
-
-interface Repository {
-
-    suspend fun updateEntriesFromFile(tleUri: Uri)
-
-    suspend fun updateEntriesFromUrl(urlList: List<TleSource>)
-
-    suspend fun getAllEntries(): List<SatEntry>
-
-    suspend fun getSelectedEntries(): List<SatEntry>
-
-    suspend fun updateEntriesSelection(catNumList: List<Int>)
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    suspend fun updateTransmitters()
-
-    suspend fun getTransmittersByCatNum(catNum: Int): List<Transmitter>
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////
-
-    suspend fun updateSources(sources: List<TleSource>)
-
-    suspend fun getSources(): List<TleSource>
-}

app/src/main/java/com/rtbishop/look4sat/ui/MainActivity.kt

@@ -1,222 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui
-
-import android.Manifest
-import android.annotation.SuppressLint
-import android.content.Context
-import android.content.Intent
-import android.content.pm.ActivityInfo
-import android.content.pm.PackageManager
-import android.net.Uri
-import android.os.Bundle
-import android.view.View
-import android.view.WindowManager
-import androidx.appcompat.app.AppCompatActivity
-import androidx.core.app.ActivityCompat
-import androidx.lifecycle.Observer
-import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import androidx.navigation.findNavController
-import androidx.navigation.ui.AppBarConfiguration
-import androidx.navigation.ui.navigateUp
-import androidx.navigation.ui.setupActionBarWithNavController
-import androidx.navigation.ui.setupWithNavController
-import com.rtbishop.look4sat.Look4SatApp
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.databinding.ActivityMainBinding
-import com.rtbishop.look4sat.databinding.DrawerHeaderBinding
-import com.rtbishop.look4sat.ui.fragments.TleSourcesDialogFragment
-import com.rtbishop.look4sat.utility.Extensions.toast
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-class MainActivity : AppCompatActivity(), TleSourcesDialogFragment.SourcesSubmitListener {
-
-    private val pickFileReqCode = 1001
-    private val permissionsReqCode = 1000
-    private val permissions = arrayOf(
-        Manifest.permission.ACCESS_FINE_LOCATION,
-        Manifest.permission.READ_EXTERNAL_STORAGE,
-        Manifest.permission.WRITE_EXTERNAL_STORAGE
-    )
-
-    @Inject
-    lateinit var viewModelFactory: ViewModelFactory
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var mainBinding: ActivityMainBinding
-    private lateinit var drawerBinding: DrawerHeaderBinding
-    private lateinit var appBarConfig: AppBarConfiguration
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        setTheme(R.style.AppTheme)
-        super.onCreate(savedInstanceState)
-
-        mainBinding = ActivityMainBinding.inflate(layoutInflater)
-        drawerBinding = DrawerHeaderBinding.inflate(layoutInflater, mainBinding.navView, true)
-        setContentView(mainBinding.root)
-        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
-
-        (application as Look4SatApp).appComponent.inject(this)
-        viewModel = ViewModelProvider(this, viewModelFactory).get(SharedViewModel::class.java)
-
-        setupComponents()
-        setupObservers()
-        setupDrawer()
-
-        viewModel.setDefaultTleSources()
-
-        if (!hasPermissions(this, permissions)) {
-            ActivityCompat.requestPermissions(this, permissions, permissionsReqCode)
-        }
-    }
-
-    @SuppressLint("SourceLockedOrientationActivity")
-    private fun setupComponents() {
-        val navController = findNavController(R.id.nav_host)
-        val toolbar = mainBinding.includeAppBar.toolbar
-        setSupportActionBar(toolbar)
-
-        appBarConfig = AppBarConfiguration(
-            setOf(R.id.nav_pass_list, R.id.nav_map_view),
-            mainBinding.drawerLayout
-        )
-
-        setupActionBarWithNavController(navController, appBarConfig)
-        mainBinding.navView.setupWithNavController(navController)
-
-        navController.addOnDestinationChangedListener { _, destination, _ ->
-            when (destination.id) {
-                R.id.nav_pass_list -> {
-                    this.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
-                    toolbar.visibility = View.VISIBLE
-                    mainBinding.includeAppBar.toolbarLayout.visibility = View.VISIBLE
-                }
-                R.id.nav_map_view -> {
-                    this.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
-                    toolbar.visibility = View.GONE
-                    mainBinding.includeAppBar.toolbarLayout.visibility = View.GONE
-                }
-                R.id.nav_map_osm -> {
-                    this.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
-                    toolbar.visibility = View.GONE
-                    mainBinding.includeAppBar.toolbarLayout.visibility = View.GONE
-                }
-                else -> {
-                    this.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
-                    toolbar.visibility = View.VISIBLE
-                    mainBinding.includeAppBar.toolbarLayout.visibility = View.GONE
-                }
-            }
-        }
-    }
-
-    private fun setupObservers() {
-        viewModel.getGSP().observe(this, Observer { result ->
-            when (result) {
-                is Result.Success -> {
-                    drawerBinding.drawerLatValue.text =
-                        String.format(getString(R.string.pat_location), result.data.latitude)
-                    drawerBinding.drawerLonValue.text =
-                        String.format(getString(R.string.pat_location), result.data.longitude)
-                }
-                is Result.Error -> {
-                    when (result.exception) {
-                        is SecurityException ->
-                            getString(R.string.err_no_permissions).toast(this)
-                        is IllegalArgumentException ->
-                            getString(R.string.update_loc_failure).toast(this)
-                    }
-                }
-            }
-        })
-        viewModel.getUpdateStatus().observe(this, Observer { result ->
-            when (result) {
-                is Result.Success -> getString(R.string.import_data_success).toast(this)
-                is Result.Error -> getString(R.string.import_data_failure).toast(this)
-            }
-        })
-    }
-
-    private fun setupDrawer() {
-        drawerBinding.drawerBtnLoc.setOnClickListener {
-            viewModel.updatePosition()
-            it.lockButton()
-        }
-        drawerBinding.drawerBtnTleFile.setOnClickListener {
-            val openFileIntent = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
-                addCategory(Intent.CATEGORY_OPENABLE)
-                type = "*/*"
-            }
-            startActivityForResult(openFileIntent, pickFileReqCode)
-            mainBinding.drawerLayout.closeDrawers()
-            it.lockButton()
-        }
-        drawerBinding.drawerBtnTleUrl.setOnClickListener {
-            TleSourcesDialogFragment(viewModel.getTleSources()).apply {
-                setSourcesListener(this@MainActivity)
-                show(supportFragmentManager, "TleSourcesDialog")
-            }
-            mainBinding.drawerLayout.closeDrawers()
-            it.lockButton()
-        }
-        drawerBinding.drawerBtnGithub.setOnClickListener {
-            val gitHubUrl = "https://github.com/rt-bishop/LookingSat"
-            val githubIntent = Intent(Intent.ACTION_VIEW, Uri.parse(gitHubUrl))
-            startActivity(githubIntent)
-        }
-    }
-
-    override fun onSourcesSubmit(list: List<TleSource>) {
-        viewModel.updateSatData(list)
-    }
-
-    private fun View.lockButton() {
-        lifecycleScope.launch {
-            this@lockButton.isEnabled = false
-            delay(3000)
-            this@lockButton.isEnabled = true
-        }
-    }
-
-    private fun hasPermissions(context: Context, permissions: Array<String>): Boolean =
-        permissions.all {
-            ActivityCompat.checkSelfPermission(context, it) == PackageManager.PERMISSION_GRANTED
-        }
-
-    override fun onSupportNavigateUp(): Boolean {
-        val navController = findNavController(R.id.nav_host)
-        return navController.navigateUp(appBarConfig) || super.onSupportNavigateUp()
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        if (requestCode == pickFileReqCode && resultCode == RESULT_OK) {
-            data?.data?.also { uri ->
-                viewModel.updateEntriesFromFile(uri)
-            }
-        } else {
-            super.onActivityResult(requestCode, resultCode, data)
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/SharedViewModel.kt

@@ -1,173 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui
-
-import android.net.Uri
-import androidx.lifecycle.*
-import com.github.amsacode.predict4java.GroundStationPosition
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.repo.Repository
-import com.rtbishop.look4sat.utility.PassPredictor
-import com.rtbishop.look4sat.utility.PrefsManager
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.runBlocking
-import java.util.*
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class SharedViewModel @Inject constructor(
-    private val prefsManager: PrefsManager,
-    private val repository: Repository
-) : ViewModel() {
-
-    private val _satPassList = MutableLiveData<Result<MutableList<SatPass>>>()
-    private val _updateStatus = MutableLiveData<Result<Int>>()
-    private val _gsp = MutableLiveData<Result<GroundStationPosition>>().apply {
-        value = Result.Success(prefsManager.getPosition())
-    }
-    private var calculationJob: Job? = null
-
-    fun getTransmittersForSat(id: Int) = liveData { emit(repository.getTransmittersByCatNum(id)) }
-    fun getPassList(): LiveData<Result<MutableList<SatPass>>> = _satPassList
-    fun getUpdateStatus(): LiveData<Result<Int>> = _updateStatus
-    fun getGSP(): LiveData<Result<GroundStationPosition>> = _gsp
-
-    fun getCompass() = prefsManager.getCompass()
-    fun getRefreshRate() = prefsManager.getRefreshRate()
-    fun getHoursAhead() = prefsManager.getHoursAhead()
-    fun getMinElevation() = prefsManager.getMinElevation()
-    fun setPositionFromPref() = _gsp.postValue(Result.Success(prefsManager.getPosition()))
-    suspend fun getAllEntries() = repository.getAllEntries()
-
-    fun setPassPrefs(hoursAhead: Int, minEl: Double) {
-        prefsManager.setHoursAhead(hoursAhead)
-        prefsManager.setMinElevation(minEl)
-    }
-
-    fun updatePosition() {
-        val lastLoc = prefsManager.getLastKnownLocation()
-        if (lastLoc == null) {
-            _gsp.postValue(Result.Error(Exception()))
-        } else {
-            val gsp = GroundStationPosition(lastLoc.latitude, lastLoc.longitude, lastLoc.altitude)
-            _gsp.postValue(Result.Success(gsp))
-        }
-    }
-
-    fun updateEntriesFromFile(uri: Uri) {
-        viewModelScope.launch(Dispatchers.IO) {
-            try {
-                val selected = repository.getSelectedEntries().map { it.catNum }
-                repository.updateEntriesFromFile(uri)
-                repository.updateEntriesSelection(selected)
-                _updateStatus.postValue(Result.Success(0))
-            } catch (e: Exception) {
-                _updateStatus.postValue(Result.Error(e))
-            }
-        }
-    }
-
-    fun updateSatData(list: List<TleSource>) {
-        viewModelScope.launch(Dispatchers.IO) {
-            try {
-                val selected = repository.getSelectedEntries().map { it.catNum }
-                repository.updateSources(list)
-                repository.updateEntriesFromUrl(list)
-                repository.updateTransmitters()
-                repository.updateEntriesSelection(selected)
-                _updateStatus.postValue(Result.Success(0))
-            } catch (e: Exception) {
-                _updateStatus.postValue(Result.Error(e))
-            }
-        }
-    }
-
-    fun updateEntriesSelection(catNumList: MutableList<Int>) {
-        viewModelScope.launch(Dispatchers.IO) {
-            repository.updateEntriesSelection(catNumList)
-            calculatePasses()
-        }
-    }
-
-    fun calculatePasses() {
-        _satPassList.postValue(Result.InProgress)
-        calculationJob?.cancel()
-        var passList = mutableListOf<SatPass>()
-        val dateNow = Date()
-        val gsp = prefsManager.getPosition()
-        calculationJob = viewModelScope.launch(Dispatchers.Default) {
-            repository.getSelectedEntries().forEach {
-                passList.addAll(getPassesForEntries(it, dateNow, gsp))
-            }
-            passList = filterAndSortPasses(passList, dateNow, getHoursAhead())
-            _satPassList.postValue(Result.Success(passList))
-        }
-    }
-
-    fun setDefaultTleSources() {
-        if (prefsManager.isFirstLaunch()) {
-            viewModelScope.launch {
-                val defSourcesList = listOf(
-                    TleSource("https://celestrak.com/NORAD/elements/active.txt"),
-                    TleSource("https://amsat.org/tle/current/nasabare.txt")
-                )
-                repository.updateSources(defSourcesList)
-            }
-        }
-    }
-
-    fun getTleSources(): List<TleSource> = runBlocking {
-        return@runBlocking repository.getSources()
-    }
-
-    private fun getPassesForEntries(
-        entry: SatEntry,
-        dateNow: Date,
-        gsp: GroundStationPosition
-    ): MutableList<SatPass> {
-        val predictor = PassPredictor(entry.tle, gsp)
-        val passes = predictor.getPasses(dateNow, getHoursAhead(), true)
-        val passList = passes.map { SatPass(entry.tle, predictor, it) }
-        return passList as MutableList<SatPass>
-    }
-
-    private fun filterAndSortPasses(
-        passes: MutableList<SatPass>,
-        dateNow: Date,
-        hoursAhead: Int
-    ): MutableList<SatPass> {
-        val dateFuture = Calendar.getInstance().let {
-            it.time = dateNow
-            it.add(Calendar.HOUR, hoursAhead)
-            it.time
-        }
-        passes.removeAll { it.pass.startTime.after(dateFuture) }
-        passes.removeAll { it.pass.endTime.before(dateNow) }
-        passes.removeAll { it.pass.maxEl < getMinElevation() }
-        passes.sortBy { it.pass.startTime }
-        return passes
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/adapters/SatEntryAdapter.kt

@@ -1,66 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.adapters
-
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.databinding.ItemSatEntryBinding
-
-class SatEntryAdapter(private var entries: MutableList<SatEntry>) :
-    RecyclerView.Adapter<SatEntryAdapter.SatEntryHolder>() {
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SatEntryHolder {
-        val binding = ItemSatEntryBinding
-            .inflate(LayoutInflater.from(parent.context), parent, false)
-        return SatEntryHolder(binding.root, binding)
-    }
-
-    override fun onBindViewHolder(holder: SatEntryHolder, position: Int) {
-        holder.bind(entries[position])
-    }
-
-    override fun getItemCount(): Int {
-        return entries.size
-    }
-
-    fun setEntries(list: MutableList<SatEntry>) {
-        entries = list
-        notifyDataSetChanged()
-    }
-
-    fun getEntries(): MutableList<SatEntry> {
-        return entries
-    }
-
-    inner class SatEntryHolder(itemView: View, private val binding: ItemSatEntryBinding) :
-        RecyclerView.ViewHolder(itemView) {
-
-        fun bind(satEntry: SatEntry) {
-            binding.satEntryCheckbox.text = satEntry.name
-            binding.satEntryCheckbox.isChecked = satEntry.isSelected
-            itemView.setOnClickListener {
-                satEntry.isSelected = binding.satEntryCheckbox.isChecked
-            }
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/adapters/SatPassAdapter.kt

@@ -1,156 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.adapters
-
-import android.content.Context
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.navigation.findNavController
-import androidx.recyclerview.widget.RecyclerView
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.databinding.ItemPassGeoBinding
-import com.rtbishop.look4sat.databinding.ItemPassLeoBinding
-import com.rtbishop.look4sat.ui.fragments.PassListFragmentDirections
-import com.rtbishop.look4sat.utility.PrefsManager
-import java.text.SimpleDateFormat
-import java.util.*
-
-class SatPassAdapter(
-    private var satPassList: MutableList<SatPass>,
-    private val prefsManager: PrefsManager
-) :
-    RecyclerView.Adapter<RecyclerView.ViewHolder>() {
-
-    fun setList(list: MutableList<SatPass>) {
-        satPassList = list
-        notifyDataSetChanged()
-    }
-
-    fun updateRecycler() {
-        val timeNow = Date()
-        val iterator = satPassList.listIterator()
-        while (iterator.hasNext()) {
-            val satPass = iterator.next()
-            if (satPass.progress < 100) {
-                val timeStart = satPass.pass.startTime
-                val timeEnd = satPass.pass.endTime
-                if (timeNow.after(timeStart)) {
-                    satPass.active = true
-                    val index = satPassList.indexOf(satPass)
-                    val deltaTotal = timeEnd.time.minus(timeStart.time)
-                    val deltaNow = timeNow.time.minus(timeStart.time)
-                    satPass.progress = ((deltaNow.toFloat() / deltaTotal.toFloat()) * 100).toInt()
-                    notifyItemChanged(index)
-                }
-            } else {
-                val index = satPassList.indexOf(satPass)
-                iterator.remove()
-                notifyItemRemoved(index)
-            }
-        }
-    }
-
-    override fun getItemCount(): Int {
-        return satPassList.size
-    }
-
-    override fun getItemViewType(position: Int): Int {
-        return if (satPassList[position].tle.isDeepspace) 1
-        else 0
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
-        return if (viewType == 0) {
-            val bindingLeo = ItemPassLeoBinding
-                .inflate(LayoutInflater.from(parent.context), parent, false)
-            SatPassLeoHolder(bindingLeo.root, bindingLeo)
-        } else {
-            val bindingGeo = ItemPassGeoBinding
-                .inflate(LayoutInflater.from(parent.context), parent, false)
-            SatPassGeoHolder(bindingGeo.root, bindingGeo)
-        }
-    }
-
-    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
-        if (holder.itemViewType == 0) {
-            (holder as SatPassLeoHolder).bind(satPassList[position])
-        } else {
-            (holder as SatPassGeoHolder).bind(satPassList[position])
-        }
-    }
-
-    inner class SatPassLeoHolder(itemView: View, private val binding: ItemPassLeoBinding) :
-        RecyclerView.ViewHolder(itemView) {
-
-        fun bind(satPass: SatPass) {
-            val context: Context = itemView.context
-            if (satPass.active) binding.passLeoImg.setImageResource(R.drawable.ic_pass_active)
-            else binding.passLeoImg.setImageResource(R.drawable.ic_pass_inactive)
-
-            binding.passLeoSatName.text = satPass.tle.name
-            binding.passLeoSatId.text =
-                String.format(context.getString(R.string.pass_satId), satPass.tle.catnum)
-            binding.passLeoMaxEl.text =
-                String.format(context.getString(R.string.pat_elevation), satPass.pass.maxEl)
-            binding.passLeoAosAz.text =
-                String.format(context.getString(R.string.pass_aos_az), satPass.pass.aosAzimuth)
-            binding.passLeoLosAz.text =
-                String.format(context.getString(R.string.pass_los_az), satPass.pass.losAzimuth)
-            binding.passLeoProgress.progress = satPass.progress
-
-            val dateFormat =
-                SimpleDateFormat(context.getString(R.string.pass_dateTime), Locale.getDefault())
-            if (prefsManager.isTimeUTC()) dateFormat.timeZone = TimeZone.getTimeZone("UTC")
-            binding.passLeoAosTime.text = dateFormat.format(satPass.pass.startTime)
-            binding.passLeoLosTime.text = dateFormat.format(satPass.pass.endTime)
-
-            itemView.setOnClickListener {
-                val passIndex = satPassList.indexOf(satPass)
-                val action = PassListFragmentDirections.actionPassToPolar(passIndex)
-                itemView.findNavController().navigate(action)
-            }
-        }
-    }
-
-    inner class SatPassGeoHolder(itemView: View, private val binding: ItemPassGeoBinding) :
-        RecyclerView.ViewHolder(itemView) {
-
-        fun bind(satPass: SatPass) {
-            val context: Context = itemView.context
-            val satPos = satPass.predictor.getSatPos(satPass.pass.startTime)
-            val azimuth = satPos.azimuth * 180 / Math.PI
-
-            binding.passGeoName.text = satPass.tle.name
-            binding.passGeoId.text =
-                String.format(context.getString(R.string.pass_satId), satPass.tle.catnum)
-            binding.passGeoAz.text = String.format(context.getString(R.string.pat_azimuth), azimuth)
-            binding.passGeoEl.text =
-                String.format(context.getString(R.string.pat_elevation), satPass.pass.maxEl)
-
-            itemView.setOnClickListener {
-                val passIndex = satPassList.indexOf(satPass)
-                val action = PassListFragmentDirections.actionPassToPolar(passIndex)
-                itemView.findNavController().navigate(action)
-            }
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/adapters/TleSourcesAdapter.kt

@@ -1,91 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.adapters
-
-import android.text.Editable
-import android.text.TextWatcher
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.databinding.ItemTleSourceBinding
-
-class TleSourcesAdapter(private var sources: MutableList<TleSource>) :
-    RecyclerView.Adapter<TleSourcesAdapter.TleSourceHolder>() {
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TleSourceHolder {
-        val binding = ItemTleSourceBinding
-            .inflate(LayoutInflater.from(parent.context), parent, false)
-        return TleSourceHolder(binding.root, binding, TleSourceWatcher())
-    }
-
-    override fun onBindViewHolder(holder: TleSourceHolder, position: Int) {
-        holder.textWatcher.updatePosition(position)
-        holder.bind(sources[position])
-    }
-
-    override fun getItemCount(): Int {
-        return sources.size
-    }
-
-    fun getSources(): MutableList<TleSource> {
-        return sources
-    }
-
-    fun setSources(list: MutableList<TleSource>) {
-        sources = list
-        notifyDataSetChanged()
-    }
-
-    inner class TleSourceHolder(
-        itemView: View,
-        val binding: ItemTleSourceBinding,
-        val textWatcher: TleSourceWatcher
-    ) :
-        RecyclerView.ViewHolder(itemView) {
-
-        fun bind(source: TleSource) {
-            binding.tleSourceUrl.setText(source.url)
-            binding.tleSourceUrl.addTextChangedListener(textWatcher)
-            binding.tleSourceBtnDel.setOnClickListener {
-                sources.remove(source)
-                notifyItemRemoved(adapterPosition)
-            }
-        }
-    }
-
-    inner class TleSourceWatcher : TextWatcher {
-
-        private var position = 0
-
-        fun updatePosition(position: Int) {
-            this.position = position
-        }
-
-        override fun afterTextChanged(s: Editable?) {}
-
-        override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
-
-        override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
-            sources[position].url = s.toString()
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/adapters/TransmitterAdapter.kt

@@ -1,142 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.adapters
-
-import android.content.Context
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.data.Transmitter
-import com.rtbishop.look4sat.databinding.ItemTransmitterBinding
-import com.rtbishop.look4sat.utility.PassPredictor
-import java.util.*
-
-class TransmitterAdapter : RecyclerView.Adapter<TransmitterAdapter.TransmitterHolder>() {
-
-    private var transmittersList = emptyList<Transmitter>()
-    private lateinit var predictor: PassPredictor
-
-    fun setPredictor(predict: PassPredictor) {
-        predictor = predict
-    }
-
-    fun setList(list: List<Transmitter>) {
-        transmittersList = list
-    }
-
-    override fun getItemCount(): Int {
-        return transmittersList.size
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TransmitterHolder {
-        val binding = ItemTransmitterBinding
-            .inflate(LayoutInflater.from(parent.context), parent, false)
-        return TransmitterHolder(binding.root, binding)
-    }
-
-    override fun onBindViewHolder(holder: TransmitterHolder, position: Int) {
-        holder.bind(transmittersList[position])
-    }
-
-    inner class TransmitterHolder(itemView: View, private val binding: ItemTransmitterBinding) :
-        RecyclerView.ViewHolder(itemView) {
-
-        fun bind(transmitter: Transmitter) {
-            val context: Context = itemView.context
-            val freqDivider = 1000000f
-
-            binding.transDescription.text = transmitter.description
-
-            if (transmitter.downlinkLow != null && transmitter.downlinkHigh == null) {
-                binding.transDownlink.text = String
-                    .format(
-                        context.getString(R.string.trans_down_low),
-                        transmitter.downlinkLow / freqDivider
-                    )
-                binding.transDownlinkDoppler.text = String
-                    .format(
-                        context.getString(R.string.trans_down_low_doppler),
-                        predictor.getDownlinkFreq(transmitter.downlinkLow, Date()) / freqDivider
-                    )
-            } else if (transmitter.downlinkLow != null && transmitter.downlinkHigh != null) {
-                binding.transDownlink.text = String
-                    .format(
-                        context.getString(R.string.trans_down_lowHigh),
-                        transmitter.downlinkLow / freqDivider,
-                        transmitter.downlinkHigh / freqDivider
-                    )
-                binding.transDownlinkDoppler.text = String
-                    .format(
-                        context.getString(R.string.trans_down_lowHigh_doppler),
-                        predictor.getDownlinkFreq(transmitter.downlinkLow, Date()) / freqDivider,
-                        predictor.getDownlinkFreq(transmitter.downlinkHigh, Date()) / freqDivider
-                    )
-            } else {
-                binding.transDownlink.text = context.getString(R.string.no_downlink)
-                binding.transDownlinkDoppler.text = context.getString(R.string.no_downlink_doppler)
-            }
-
-            if (transmitter.uplinkLow != null && transmitter.uplinkHigh == null) {
-                binding.transUplink.text = String.format(
-                    context.getString(R.string.trans_up_low),
-                    transmitter.uplinkLow / freqDivider
-                )
-                binding.transUplinkDoppler.text = String.format(
-                    context.getString(R.string.trans_up_low_doppler),
-                    predictor.getUplinkFreq(transmitter.uplinkLow, Date()) / freqDivider
-                )
-            } else if (transmitter.uplinkLow != null && transmitter.uplinkHigh != null) {
-                binding.transUplink.text = String.format(
-                    context.getString(R.string.trans_up_lowHigh),
-                    transmitter.uplinkLow / freqDivider,
-                    transmitter.uplinkHigh / freqDivider
-                )
-                binding.transUplinkDoppler.text = String.format(
-                    context.getString(R.string.trans_up_lowHigh_doppler),
-                    predictor.getUplinkFreq(transmitter.uplinkLow, Date()) / freqDivider,
-                    predictor.getUplinkFreq(transmitter.uplinkHigh, Date()) / freqDivider
-                )
-            } else {
-                binding.transUplink.text = context.getString(R.string.no_uplink)
-                binding.transUplinkDoppler.text = context.getString(R.string.no_uplink_doppler)
-            }
-
-            if (transmitter.mode != null) {
-                binding.transMode.text =
-                    String.format(context.getString(R.string.trans_mode), transmitter.mode)
-            } else {
-                binding.transMode.text = context.getString(R.string.no_mode)
-            }
-            if (transmitter.isInverted) {
-                binding.transInverted.text = String.format(
-                    context.getString(R.string.trans_inverted),
-                    context.getString(R.string.btn_yes)
-                )
-            } else {
-                binding.transInverted.text = String.format(
-                    context.getString(R.string.trans_inverted),
-                    context.getString(R.string.btn_no)
-                )
-            }
-        }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/AboutFragment.kt

@@ -1,39 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.os.Bundle
-import android.text.method.LinkMovementMethod
-import android.view.View
-import androidx.fragment.app.Fragment
-import com.rtbishop.look4sat.BuildConfig
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.databinding.FragmentAboutBinding
-
-class AboutFragment : Fragment(R.layout.fragment_about) {
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        val binding = FragmentAboutBinding.bind(view)
-        binding.tvAboutVersion.text =
-            String.format(getString(R.string.app_version), BuildConfig.VERSION_NAME)
-        binding.tvAboutMessage.movementMethod = LinkMovementMethod.getInstance()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/MapOsmFragment.kt

@@ -1,339 +0,0 @@
-package com.rtbishop.look4sat.ui.fragments
-
-import android.graphics.Color
-import android.graphics.ColorMatrix
-import android.graphics.ColorMatrixColorFilter
-import android.graphics.Paint
-import android.os.Bundle
-import android.view.View
-import androidx.core.content.ContextCompat
-import androidx.core.content.res.ResourcesCompat
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import androidx.preference.PreferenceManager
-import com.github.amsacode.predict4java.GroundStationPosition
-import com.rtbishop.look4sat.Look4SatApp
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.SatItem
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.databinding.FragmentMapOsmBinding
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.SharedViewModel
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import org.osmdroid.config.Configuration
-import org.osmdroid.tileprovider.tilesource.OnlineTileSourceBase
-import org.osmdroid.tileprovider.tilesource.TileSourcePolicy
-import org.osmdroid.tileprovider.tilesource.XYTileSource
-import org.osmdroid.util.BoundingBox
-import org.osmdroid.util.GeoPoint
-import org.osmdroid.views.CustomZoomButtonsController
-import org.osmdroid.views.overlay.*
-import java.util.*
-import javax.inject.Inject
-import kotlin.math.pow
-import kotlin.math.sqrt
-
-class MapOsmFragment : Fragment(R.layout.fragment_map_osm) {
-
-    @Inject
-    lateinit var modelFactory: ViewModelFactory
-    private lateinit var mainActivity: MainActivity
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var binding: FragmentMapOsmBinding
-    private lateinit var trackPaint: Paint
-    private lateinit var footprintPaint: Paint
-    private lateinit var selectedPass: SatPass
-    private val dateNow = Date(System.currentTimeMillis())
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        binding = FragmentMapOsmBinding.bind(view)
-        mainActivity = requireActivity() as MainActivity
-        (mainActivity.application as Look4SatApp).appComponent.inject(this)
-        viewModel = ViewModelProvider(mainActivity, modelFactory).get(SharedViewModel::class.java)
-
-        val prefs = PreferenceManager.getDefaultSharedPreferences(mainActivity.applicationContext)
-        Configuration.getInstance().load(mainActivity.applicationContext, prefs)
-
-        trackPaint = Paint().apply {
-            strokeWidth = 2f
-            style = Paint.Style.STROKE
-            color = ContextCompat.getColor(mainActivity, R.color.satTrack)
-            strokeCap = Paint.Cap.ROUND
-            strokeJoin = Paint.Join.ROUND
-            isAntiAlias = true
-        }
-
-        footprintPaint = Paint().apply {
-            style = Paint.Style.FILL_AND_STROKE
-            color = ContextCompat.getColor(mainActivity, R.color.satOsmTemp)
-            isAntiAlias = true
-        }
-
-        setupMapView()
-        setupObservers()
-    }
-
-    private fun setupMapView() {
-        binding.mapView.apply {
-            setMultiTouchControls(true)
-            setTileSource(getWikimediaTileSource())
-            minZoomLevel = 2.5
-            maxZoomLevel = 6.0
-            controller.setZoom(minZoomLevel)
-            zoomController.setVisibility(CustomZoomButtonsController.Visibility.NEVER)
-            isHorizontalMapRepetitionEnabled = false
-            isVerticalMapRepetitionEnabled = false
-            overlayManager.tilesOverlay.loadingBackgroundColor = Color.TRANSPARENT
-            overlayManager.tilesOverlay.loadingLineColor = Color.TRANSPARENT
-            setScrollableAreaLimitDouble(BoundingBox(85.05, 180.0, -85.05, -180.0))
-
-            // apply filter
-            val tilesFilter = getColorFilter(Color.parseColor("#D50000"))
-            overlayManager.tilesOverlay.setColorFilter(tilesFilter)
-
-            // add overlays: 0 - GSP, 1 - SatTrack, 2 - SatFootprint, 3 - SatIcons
-            val layers = listOf(FolderOverlay(), FolderOverlay(), FolderOverlay(), FolderOverlay())
-            overlays.addAll(layers)
-        }
-    }
-
-    private fun getWikimediaTileSource(): OnlineTileSourceBase {
-        return XYTileSource(
-            "wikimedia",
-            2,
-            6,
-            256,
-            ".png",
-            arrayOf("https://maps.wikimedia.org/osm-intl/"),
-            resources.getString(R.string.osmCopyright),
-            TileSourcePolicy(
-                1, TileSourcePolicy.FLAG_NO_BULK and TileSourcePolicy.FLAG_NO_PREVENTIVE and
-                        TileSourcePolicy.FLAG_USER_AGENT_MEANINGFUL and TileSourcePolicy.FLAG_USER_AGENT_NORMALIZED
-            )
-        )
-    }
-
-    private fun setupObservers() {
-        viewModel.getGSP().observe(viewLifecycleOwner, { stationPosition ->
-            when (stationPosition) {
-                is Result.Success -> {
-                    setupPosOverlay(stationPosition.data)
-                }
-            }
-        })
-
-        viewModel.getPassList().observe(viewLifecycleOwner, { satPasses ->
-            when (satPasses) {
-                is Result.Success -> {
-                    if (satPasses.data.isNotEmpty()) {
-                        val filteredPasses = satPasses.data.distinctBy { it.tle }
-                        selectedPass = filteredPasses[0]
-                        setupSatOverlay(filteredPasses)
-                    }
-                }
-            }
-        })
-    }
-
-    private fun setupPosOverlay(gsp: GroundStationPosition) {
-        Marker(binding.mapView).apply {
-            setInfoWindow(null)
-            setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM)
-            icon = ResourcesCompat.getDrawable(resources, R.drawable.ic_map_pos, mainActivity.theme)
-            position = GeoPoint(gsp.latitude, gsp.longitude)
-            binding.mapView.overlays[0] = this
-            binding.mapView.invalidate()
-        }
-    }
-
-    private fun setupSatOverlay(passList: List<SatPass>) {
-        lifecycleScope.launch {
-            while (true) {
-                dateNow.time = System.currentTimeMillis()
-                binding.mapView.overlays[3] = getSatIcons(passList)
-                binding.mapView.overlays[2] = getSatFootprint(selectedPass)
-                setSatInfo(selectedPass)
-                binding.mapView.invalidate()
-                delay(3000)
-            }
-        }
-    }
-
-    private suspend fun getSatIcons(passList: List<SatPass>): Overlay =
-        withContext(Dispatchers.Default) {
-            val icon =
-                ResourcesCompat.getDrawable(resources, R.drawable.ic_map_sat, mainActivity.theme)
-            val items = mutableListOf<SatItem>()
-
-            passList.forEach {
-                val satPos = it.predictor.getSatPos(dateNow)
-                var lat = Math.toDegrees(satPos.latitude)
-                var lon = Math.toDegrees(satPos.longitude)
-
-                if (lat > 85.05) lat = 85.05
-                else if (lat < -85.05) lat = -85.05
-                if (lon > 180.0) lon -= 360.0
-
-                SatItem(it.tle.name, it.tle.name, GeoPoint(lat, lon), it).apply {
-                    markerHotspot = OverlayItem.HotspotPlace.CENTER
-                    items.add(this)
-                }
-            }
-
-            val listener = object : ItemizedIconOverlay.OnItemGestureListener<SatItem> {
-                override fun onItemLongPress(index: Int, item: SatItem): Boolean {
-                    return true
-                }
-
-                override fun onItemSingleTapUp(index: Int, item: SatItem): Boolean {
-                    selectedPass = item.pass
-                    setSatDetails(item.pass)
-                    return true
-                }
-            }
-
-            return@withContext ItemizedIconOverlay(items, icon, listener, mainActivity)
-        }
-
-    private fun setSatDetails(satPass: SatPass) {
-        setSatInfo(satPass)
-        binding.mapView.overlays[1] = getSatTrack(satPass)
-        binding.mapView.overlays[2] = getSatFootprint(satPass)
-        binding.mapView.invalidate()
-    }
-
-    private fun setSatInfo(satPass: SatPass) {
-        val satPos = satPass.predictor.getSatPos(dateNow)
-        val satLat = Math.toDegrees(satPos.latitude).toFloat()
-        var satLon = Math.toDegrees(satPos.longitude).toFloat()
-        if (satLon > 180f) satLon -= 360f
-
-        binding.idName.text =
-            String.format(
-                mainActivity.getString(R.string.pat_osm_idName),
-                satPass.tle.catnum,
-                satPass.tle.name
-            )
-        binding.altitude.text =
-            String.format(mainActivity.getString(R.string.pat_altitude), satPos.altitude)
-        binding.distance.text =
-            String.format(mainActivity.getString(R.string.pat_distance), satPos.range)
-        binding.velocity.text =
-            String.format(
-                mainActivity.getString(R.string.pat_osm_vel),
-                getSatVelocity(satPos.altitude)
-            )
-        binding.latLon.text =
-            String.format(mainActivity.getString(R.string.pat_osm_latLon), satLat, satLon)
-    }
-
-    private fun getSatVelocity(satAlt: Double): Double {
-        val earthG = 6.674 * 10.0.pow(-11)
-        val earthM = 5.98 * 10.0.pow(24)
-        val radius = 6.37 * 10.0.pow(6) + satAlt * 10.0.pow(3)
-        return sqrt(earthG * earthM / radius) / 1000
-    }
-
-    private fun getSatTrack(pass: SatPass): Overlay {
-        val period = (24 * 60 / pass.tle.meanmo).toInt()
-        val positions = pass.predictor.getPositions(dateNow, 20, 0, period * 3)
-        val trackOverlay = FolderOverlay()
-        val trackPoints = mutableListOf<GeoPoint>()
-
-        var oldLon = 0.0
-        positions.forEach {
-            val newLat = Math.toDegrees(it.latitude)
-            var newLon = Math.toDegrees(it.longitude)
-            if (newLon > 180.0) newLon -= 360.0
-            if (oldLon < -170.0 && newLon > 170.0 || oldLon > 170.0 && newLon < -170.0) {
-                val currentPoints = mutableListOf<GeoPoint>()
-                currentPoints.addAll(trackPoints)
-                Polyline().apply {
-                    outlinePaint.set(trackPaint)
-                    setPoints(currentPoints)
-                    trackOverlay.add(this)
-                }
-                trackPoints.clear()
-            }
-            oldLon = newLon
-            trackPoints.add(GeoPoint(newLat, newLon))
-        }
-
-        Polyline().apply {
-            outlinePaint.set(trackPaint)
-            setPoints(trackPoints)
-            trackOverlay.add(this)
-        }
-
-        return trackOverlay
-    }
-
-    private fun getSatFootprint(pass: SatPass): Overlay {
-        val rangeCircle = pass.predictor.getSatPos(dateNow).rangeCircle
-        val rangePoints = mutableListOf<GeoPoint>()
-        var zeroPoint = GeoPoint(0.0, 0.0)
-
-        rangeCircle.withIndex().forEach {
-            var lat = it.value.lat
-            var lon = it.value.lon
-
-            if (lat > 85.05) lat = 85.05
-            else if (lat < -85.05) lat = -85.05
-            if (lon > 180.0) lon -= 360.0
-
-            if (it.index == 0) zeroPoint = GeoPoint(lat, lon)
-            rangePoints.add(GeoPoint(lat, lon))
-        }
-        rangePoints.add(zeroPoint)
-
-        return Polygon().apply {
-            fillPaint.set(footprintPaint)
-            outlinePaint.set(footprintPaint)
-            points = rangePoints
-        }
-    }
-
-    private fun getColorFilter(targetColor: Int): ColorMatrixColorFilter {
-        val newR = Color.red(targetColor) / 255f
-        val newG = Color.green(targetColor) / 255f
-        val newB = Color.blue(targetColor) / 255f
-
-        val negativeMatrix = ColorMatrix(
-            floatArrayOf(
-                -1f, 0f, 0f, 0f, 255f,
-                0f, -1f, 0f, 0f, 255f,
-                0f, 0f, -1f, 0f, 255f,
-                0f, 0f, 0f, 1f, 0f
-            )
-        )
-
-        val tintedMatrix = ColorMatrix(
-            floatArrayOf(
-                newR, newG, newB, 0f, 0f,
-                newR, newG, newB, 0f, 0f,
-                newR, newG, newB, 0f, 0f,
-                0f, 0f, 0f, 0f, 255f
-            )
-        )
-
-        tintedMatrix.preConcat(negativeMatrix)
-        return ColorMatrixColorFilter(tintedMatrix)
-    }
-
-    override fun onPause() {
-        binding.mapView.onPause()
-        super.onPause()
-    }
-
-    override fun onResume() {
-        super.onResume()
-        binding.mapView.onResume()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/MapViewFragment.kt

@@ -1,149 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.os.Bundle
-import android.view.View
-import androidx.appcompat.app.AlertDialog
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import com.github.amsacode.predict4java.GroundStationPosition
-import com.github.amsacode.predict4java.TLE
-import com.rtbishop.look4sat.Look4SatApp
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.databinding.FragmentMapViewBinding
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.SharedViewModel
-import com.rtbishop.look4sat.ui.views.MapView
-import com.rtbishop.look4sat.utility.Extensions.toast
-import com.rtbishop.look4sat.utility.PassPredictor
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import java.util.*
-import javax.inject.Inject
-
-class MapViewFragment : Fragment(R.layout.fragment_map_view) {
-
-    @Inject
-    lateinit var modelFactory: ViewModelFactory
-    private lateinit var mainActivity: MainActivity
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var mapView: MapView
-    private lateinit var predictor: PassPredictor
-    private lateinit var selectedSat: TLE
-    private lateinit var binding: FragmentMapViewBinding
-    private var gsp = GroundStationPosition(0.0, 0.0, 0.0)
-    private var satPassList = emptyList<SatPass>()
-    private var checkedItem = 0
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        binding = FragmentMapViewBinding.bind(view)
-        mainActivity = requireActivity() as MainActivity
-        (mainActivity.application as Look4SatApp).appComponent.inject(this)
-        viewModel = ViewModelProvider(mainActivity, modelFactory).get(SharedViewModel::class.java)
-        setupObservers(binding)
-    }
-
-    private fun setupObservers(binding: FragmentMapViewBinding) {
-        viewModel.getGSP().observe(viewLifecycleOwner, { result ->
-            when (result) {
-                is Result.Success -> gsp = result.data
-            }
-        })
-
-        viewModel.getPassList().observe(viewLifecycleOwner, { result ->
-            when (result) {
-                is Result.Success -> {
-                    satPassList = result.data
-                    setupMapView(binding)
-                }
-            }
-        })
-    }
-
-    private fun setupMapView(binding: FragmentMapViewBinding) {
-        if (satPassList.isNotEmpty()) {
-            satPassList = satPassList.distinctBy { it.tle }
-            satPassList = satPassList.sortedBy { it.tle.name }
-            binding.fabMap.setOnClickListener { showSelectSatDialog(satPassList) }
-            selectedSat = satPassList.first().tle
-            predictor = satPassList.first().predictor
-            mapView = MapView(mainActivity, gsp)
-            mapView.setList(satPassList)
-            mapView.setChecked(checkedItem)
-            binding.frameMap.addView(mapView)
-            refreshView()
-        } else {
-            binding.fabMap.setOnClickListener {
-                getString(R.string.err_no_sat_selected).toast(mainActivity)
-            }
-        }
-    }
-
-    private fun refreshView() {
-        lifecycleScope.launch {
-            while (true) {
-                mapView.invalidate()
-                setDataToTextViews()
-                delay(viewModel.getRefreshRate())
-            }
-        }
-    }
-
-    private fun showSelectSatDialog(list: List<SatPass>) {
-        val tleArray = arrayOfNulls<String>(list.size).apply {
-            list.withIndex().forEach {
-                this[it.index] = it.value.tle.name
-            }
-        }
-
-        val builder = AlertDialog.Builder(mainActivity)
-        builder.setTitle(getString(R.string.dialog_show_track))
-            .setSingleChoiceItems(tleArray, checkedItem) { dialog, which ->
-                checkedItem = which
-                selectedSat = list[which].tle
-                predictor = list[which].predictor
-                mapView.setChecked(checkedItem)
-                mapView.invalidate()
-                dialog.dismiss()
-            }
-            .create()
-            .show()
-    }
-
-    private fun setDataToTextViews() {
-        val currentTime = Date(System.currentTimeMillis())
-        val position = predictor.getSatPos(currentTime)
-        var lon = Math.toDegrees(position.longitude).toFloat()
-        val lat = Math.toDegrees(position.latitude).toFloat()
-        val rng = position.range
-
-        if (lon > 180f) lon -= 360f
-
-        binding.tvMapLat.text = String.format(mainActivity.getString(R.string.pat_latitude), lat)
-        binding.tvMapLon.text = String.format(mainActivity.getString(R.string.pat_longitude), lon)
-        binding.tvMapRng.text = String.format(mainActivity.getString(R.string.pat_distance), rng)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/PassListFragment.kt

@@ -1,281 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.os.Bundle
-import android.os.CountDownTimer
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.EditText
-import android.widget.ImageButton
-import android.widget.TextView
-import android.widget.Toast
-import androidx.appcompat.app.AlertDialog
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.SimpleItemAnimator
-import com.rtbishop.look4sat.Look4SatApp
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.databinding.FragmentPassListBinding
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.SharedViewModel
-import com.rtbishop.look4sat.ui.adapters.SatPassAdapter
-import com.rtbishop.look4sat.utility.Extensions.toast
-import com.rtbishop.look4sat.utility.PrefsManager
-import kotlinx.coroutines.launch
-import java.util.*
-import java.util.concurrent.TimeUnit
-import javax.inject.Inject
-
-class PassListFragment : Fragment(R.layout.fragment_pass_list) {
-
-    @Inject
-    lateinit var modelFactory: ViewModelFactory
-
-    @Inject
-    lateinit var prefsManager: PrefsManager
-
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var satPassAdapter: SatPassAdapter
-    private lateinit var btnPassPrefs: ImageButton
-    private lateinit var aosTimer: CountDownTimer
-    private lateinit var aosTimerText: TextView
-    private lateinit var mainActivity: MainActivity
-    private var isTimerSet: Boolean = false
-    private var satPassList: MutableList<SatPass> = mutableListOf()
-
-    private var _binding: FragmentPassListBinding? = null
-    private val binding get() = _binding!!
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentPassListBinding.inflate(inflater, container, false)
-        return binding.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        mainActivity = activity as MainActivity
-        (mainActivity.application as Look4SatApp).appComponent.inject(this)
-        viewModel = ViewModelProvider(mainActivity, modelFactory).get(SharedViewModel::class.java)
-        satPassAdapter = SatPassAdapter(satPassList, prefsManager)
-        aosTimerText = mainActivity.findViewById(R.id.toolbar_timer)
-        btnPassPrefs = mainActivity.findViewById(R.id.toolbar_filter)
-
-        setupObservers(binding)
-        setupComponents(binding)
-    }
-
-    override fun onStart() {
-        super.onStart()
-        if (satPassAdapter.itemCount == 0) {
-            viewModel.calculatePasses()
-        }
-    }
-
-    private fun setupObservers(binding: FragmentPassListBinding) {
-        viewModel.getPassList().observe(viewLifecycleOwner, { result ->
-            when (result) {
-                is Result.Success -> {
-                    satPassList = result.data
-                    satPassAdapter.setList(satPassList)
-                    if (satPassList.isNotEmpty()) {
-                        binding.layoutInfo.visibility = View.INVISIBLE
-                        binding.recPassList.visibility = View.VISIBLE
-                    } else {
-                        binding.layoutInfo.visibility = View.VISIBLE
-                        binding.recPassList.visibility = View.INVISIBLE
-                    }
-                    setTimer()
-                    binding.refLayoutPassList.isRefreshing = false
-                }
-                is Result.InProgress -> {
-                    binding.refLayoutPassList.isRefreshing = true
-                }
-            }
-        })
-    }
-
-    private fun setupComponents(binding: FragmentPassListBinding) {
-        binding.recPassList.apply {
-            layoutManager = LinearLayoutManager(mainActivity)
-            adapter = satPassAdapter
-            isVerticalScrollBarEnabled = false
-            (itemAnimator as SimpleItemAnimator).supportsChangeAnimations = false
-        }
-        satPassAdapter.setList(satPassList)
-        setTimer()
-
-        binding.refLayoutPassList.setProgressBackgroundColorSchemeResource(R.color.themeAccent)
-        binding.refLayoutPassList.setColorSchemeResources(R.color.backgroundDark)
-        binding.refLayoutPassList.setOnRefreshListener { viewModel.calculatePasses() }
-        btnPassPrefs.setOnClickListener {
-            showSatPassPrefsDialog(viewModel.getHoursAhead(), viewModel.getMinElevation())
-        }
-        binding.fabSatSelect.setOnClickListener {
-            lifecycleScope.launch {
-                val list = viewModel.getAllEntries() as MutableList
-                if (list.isEmpty()) {
-                    getString(R.string.err_update_data).toast(mainActivity, Toast.LENGTH_SHORT)
-                } else {
-                    showSelectSatDialog(list)
-                }
-            }
-        }
-    }
-
-    private fun showSatPassPrefsDialog(hoursAhead: Int, minEl: Double) {
-        val satPassPrefView = View.inflate(mainActivity, R.layout.dialog_pass_pref, null)
-        val etHoursAhead = satPassPrefView.findViewById<EditText>(R.id.pref_et_hoursAhead)
-        val etMinEl = satPassPrefView.findViewById<EditText>(R.id.pref_et_minEl)
-        etHoursAhead.setText(hoursAhead.toString())
-        etMinEl.setText(minEl.toString())
-
-        AlertDialog.Builder(mainActivity).apply {
-            setPositiveButton(getString(android.R.string.ok)) { _, _ ->
-                val hoursStr = etHoursAhead.text.toString()
-                val elevationStr = etMinEl.text.toString()
-                if (hoursStr.isNotEmpty() && elevationStr.isNotEmpty()) {
-                    val hours = hoursStr.toInt()
-                    val elevation = elevationStr.toDouble()
-                    when {
-                        hours < 1 || hours > 168 -> {
-                            getString(R.string.pref_hours_ahead_input_error).toast(
-                                mainActivity,
-                                Toast.LENGTH_SHORT
-                            )
-                        }
-                        elevation < 0 || elevation > 90 -> {
-                            getString(R.string.pref_min_el_input_error).toast(
-                                mainActivity,
-                                Toast.LENGTH_SHORT
-                            )
-                        }
-                        else -> {
-                            viewModel.setPassPrefs(hours, elevation)
-                            viewModel.calculatePasses()
-                        }
-                    }
-                } else getString(R.string.err_enter_value).toast(mainActivity, Toast.LENGTH_SHORT)
-
-            }
-            setNegativeButton(getString(android.R.string.cancel)) { dialog, _ ->
-                dialog.cancel()
-            }
-            setView(satPassPrefView)
-            create()
-            show()
-        }
-    }
-
-    private fun showSelectSatDialog(tleMainList: MutableList<SatEntry>) {
-        val listener = object : SatEntryDialogFragment.EntriesSubmitListener {
-            override fun onEntriesSubmit(catNumList: MutableList<Int>) {
-                viewModel.updateEntriesSelection(catNumList)
-            }
-        }
-
-        SatEntryDialogFragment(tleMainList).apply {
-            setEntriesListener(listener)
-            show(mainActivity.supportFragmentManager, "SatEntryDialogFragment")
-        }
-    }
-
-    private fun setTimer() {
-        if (satPassList.isNotEmpty()) {
-            resetTimer()
-            val timeNow = Date()
-            try {
-                setTimerForNext(timeNow)
-            } catch (e: NoSuchElementException) {
-                setTimerForLast(timeNow)
-            } finally {
-                aosTimer.start()
-                isTimerSet = true
-            }
-        } else {
-            resetTimer(true)
-        }
-    }
-
-    private fun setTimerForNext(timeNow: Date) {
-        val nextPass = satPassList.first { it.pass.startTime.after(timeNow) }
-        val millisBeforeStart = nextPass.pass.startTime.time.minus(timeNow.time)
-        aosTimer = object : CountDownTimer(millisBeforeStart, 1000) {
-            override fun onFinish() {
-                setTimer()
-            }
-
-            override fun onTick(millisUntilFinished: Long) {
-                aosTimerText.text = String.format(
-                    mainActivity.getString(R.string.pat_timer),
-                    TimeUnit.MILLISECONDS.toHours(millisUntilFinished) % 60,
-                    TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished) % 60,
-                    TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) % 60
-                )
-                satPassAdapter.updateRecycler()
-            }
-        }
-    }
-
-    private fun setTimerForLast(timeNow: Date) {
-        val lastPass = satPassList.last()
-        val millisBeforeEnd = lastPass.pass.endTime.time.minus(timeNow.time)
-        aosTimer = object : CountDownTimer(millisBeforeEnd, 1000) {
-            override fun onFinish() {
-                viewModel.calculatePasses()
-            }
-
-            override fun onTick(millisUntilFinished: Long) {
-                aosTimerText.text = String.format(
-                    mainActivity.getString(R.string.pat_timer),
-                    TimeUnit.MILLISECONDS.toHours(millisUntilFinished) % 60,
-                    TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished) % 60,
-                    TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) % 60
-                )
-                satPassAdapter.updateRecycler()
-            }
-        }
-    }
-
-    private fun resetTimer(resetToNull: Boolean = false) {
-        if (isTimerSet) {
-            aosTimer.cancel()
-            isTimerSet = false
-        }
-        if (resetToNull) aosTimerText.text =
-            String.format(getString(R.string.pat_timer), 0, 0, 0)
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/PolarViewFragment.kt

@@ -1,173 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.content.Context
-import android.hardware.*
-import android.os.Bundle
-import android.view.View
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import androidx.navigation.fragment.navArgs
-import androidx.recyclerview.widget.LinearLayoutManager
-import com.rtbishop.look4sat.Look4SatApp
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.dagger.ViewModelFactory
-import com.rtbishop.look4sat.data.Result
-import com.rtbishop.look4sat.data.SatPass
-import com.rtbishop.look4sat.databinding.FragmentPolarViewBinding
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.SharedViewModel
-import com.rtbishop.look4sat.ui.adapters.TransmitterAdapter
-import com.rtbishop.look4sat.ui.views.PolarView
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import java.util.*
-import javax.inject.Inject
-import kotlin.math.round
-
-class PolarViewFragment : Fragment(R.layout.fragment_polar_view), SensorEventListener {
-
-    @Inject
-    lateinit var modelFactory: ViewModelFactory
-    private lateinit var mainActivity: MainActivity
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var binding: FragmentPolarViewBinding
-    private lateinit var satPass: SatPass
-    private lateinit var sensorManager: SensorManager
-    private var polarView: PolarView? = null
-    private val args: PolarViewFragmentArgs by navArgs()
-    private val transmitterAdapter = TransmitterAdapter()
-    private var magneticDeclination = 0f
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        mainActivity = activity as MainActivity
-        binding = FragmentPolarViewBinding.bind(view)
-        (mainActivity.application as Look4SatApp).appComponent.inject(this)
-        viewModel = ViewModelProvider(mainActivity, modelFactory).get(SharedViewModel::class.java)
-        sensorManager = mainActivity.getSystemService(Context.SENSOR_SERVICE) as SensorManager
-        binding.recPolar.apply {
-            layoutManager = LinearLayoutManager(mainActivity)
-            adapter = transmitterAdapter
-        }
-        observePasses()
-        observeStationPosition()
-    }
-
-    override fun onResume() {
-        super.onResume()
-        if (viewModel.getCompass()) {
-            sensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR).also { sensor ->
-                sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_NORMAL)
-            }
-        }
-    }
-
-    override fun onPause() {
-        super.onPause()
-        if (viewModel.getCompass()) {
-            sensorManager.unregisterListener(this)
-        }
-    }
-
-    override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {}
-
-    override fun onSensorChanged(event: SensorEvent?) {
-        event?.let { calculateAzimuth(it) }
-    }
-
-    private fun calculateAzimuth(event: SensorEvent) {
-        val rotationValues = FloatArray(9)
-        SensorManager.getRotationMatrixFromVector(rotationValues, event.values)
-        val orientationValues = FloatArray(3)
-        SensorManager.getOrientation(rotationValues, orientationValues)
-        val magneticAzimuth = ((orientationValues[0] * 57.2957795f) + 360f) % 360f
-        val roundedAzimuth = round(magneticAzimuth * 100) / 100
-        polarView?.rotation = -(roundedAzimuth + magneticDeclination)
-    }
-
-    private fun observePasses() {
-        viewModel.getPassList().observe(viewLifecycleOwner, { result ->
-            if (result is Result.Success) {
-                val refreshRate = viewModel.getRefreshRate()
-                satPass = result.data[args.satPassIndex]
-                mainActivity.supportActionBar?.title = satPass.tle.name
-                polarView = PolarView(mainActivity, satPass)
-                binding.framePolar.addView(polarView)
-                observeTransmitters()
-                refreshText(refreshRate)
-            }
-        })
-    }
-
-    private fun observeTransmitters() {
-        viewModel.getTransmittersForSat(satPass.tle.catnum).observe(viewLifecycleOwner, {
-            if (it.isNotEmpty()) {
-                transmitterAdapter.setPredictor(satPass.predictor)
-                transmitterAdapter.setList(it)
-                transmitterAdapter.notifyDataSetChanged()
-                binding.recPolar.visibility = View.VISIBLE
-                binding.tvPolarNoTrans.visibility = View.INVISIBLE
-            } else {
-                binding.recPolar.visibility = View.INVISIBLE
-                binding.tvPolarNoTrans.visibility = View.VISIBLE
-            }
-        })
-    }
-
-    private fun observeStationPosition() {
-        viewModel.getGSP().observe(viewLifecycleOwner, { result ->
-            if (result is Result.Success) {
-                val geoField = GeomagneticField(
-                    result.data.latitude.toFloat(),
-                    result.data.longitude.toFloat(),
-                    result.data.heightAMSL.toFloat(),
-                    System.currentTimeMillis()
-                )
-                magneticDeclination = geoField.declination
-            }
-        })
-    }
-
-    private fun refreshText(rate: Long) {
-        lifecycleScope.launch {
-            while (true) {
-                setPassText()
-                polarView?.invalidate()
-                transmitterAdapter.notifyDataSetChanged()
-                delay(rate)
-            }
-        }
-    }
-
-    private fun setPassText() {
-        val satPos = satPass.predictor.getSatPos(Date())
-        val polarAz = mainActivity.getString(R.string.pat_azimuth)
-        val polarEl = mainActivity.getString(R.string.pat_elevation)
-        val polarRng = mainActivity.getString(R.string.pat_distance)
-        val polarAlt = mainActivity.getString(R.string.pat_altitude)
-        binding.tvPolarAz.text = String.format(polarAz, Math.toDegrees(satPos.azimuth))
-        binding.tvPolarEl.text = String.format(polarEl, Math.toDegrees(satPos.elevation))
-        binding.tvPolarRng.text = String.format(polarRng, satPos.range)
-        binding.tvPolarAlt.text = String.format(polarAlt, satPos.altitude)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/PreferencesFragment.kt

@@ -1,133 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.content.SharedPreferences
-import android.os.Bundle
-import android.text.InputType
-import androidx.lifecycle.ViewModelProvider
-import androidx.preference.EditTextPreference
-import androidx.preference.PreferenceFragmentCompat
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.ui.MainActivity
-import com.rtbishop.look4sat.ui.SharedViewModel
-import com.rtbishop.look4sat.utility.Extensions.toast
-
-class PreferencesFragment : PreferenceFragmentCompat(),
-    SharedPreferences.OnSharedPreferenceChangeListener {
-
-    private lateinit var mainActivity: MainActivity
-    private lateinit var viewModel: SharedViewModel
-    private lateinit var keyLat: String
-    private lateinit var keyLon: String
-    private lateinit var keyAlt: String
-    private lateinit var keyDelay: String
-
-    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-        setPreferencesFromResource(R.xml.preference, rootKey)
-        val provider = EditTextPreference.SimpleSummaryProvider.getInstance()
-
-        mainActivity = activity as MainActivity
-        viewModel = ViewModelProvider(mainActivity).get(SharedViewModel::class.java)
-
-        keyLat = mainActivity.getString(R.string.pref_lat_key)
-        keyLon = mainActivity.getString(R.string.pref_lon_key)
-        keyAlt = mainActivity.getString(R.string.pref_alt_key)
-        keyDelay = mainActivity.getString(R.string.pref_refresh_rate_key)
-
-        findPreference<EditTextPreference>(keyLat)?.apply {
-            summaryProvider = provider
-            setOnBindEditTextListener {
-                it.inputType = InputType.TYPE_CLASS_NUMBER or
-                        InputType.TYPE_NUMBER_FLAG_DECIMAL or
-                        InputType.TYPE_NUMBER_FLAG_SIGNED
-            }
-            setOnPreferenceChangeListener { _, newValue ->
-                val valueStr = newValue.toString()
-                if (valueStr.isEmpty() || valueStr == "-" || valueStr.toDouble() < -90.0 || valueStr.toDouble() > 90.0) {
-                    getString(R.string.pref_lat_input_error).toast(mainActivity)
-                    return@setOnPreferenceChangeListener false
-                }
-                return@setOnPreferenceChangeListener true
-            }
-        }
-
-        findPreference<EditTextPreference>(keyLon)?.apply {
-            summaryProvider = provider
-            setOnBindEditTextListener {
-                it.inputType = InputType.TYPE_CLASS_NUMBER or
-                        InputType.TYPE_NUMBER_FLAG_DECIMAL or
-                        InputType.TYPE_NUMBER_FLAG_SIGNED
-            }
-            setOnPreferenceChangeListener { _, newValue ->
-                val valueStr = newValue.toString()
-                if (valueStr.isEmpty() || valueStr == "-" || valueStr.toDouble() < -180.0 || valueStr.toDouble() > 180.0) {
-                    getString(R.string.pref_lon_input_error).toast(mainActivity)
-                    return@setOnPreferenceChangeListener false
-                }
-                return@setOnPreferenceChangeListener true
-            }
-        }
-
-        findPreference<EditTextPreference>(keyAlt)?.apply {
-            summaryProvider = provider
-            setOnBindEditTextListener {
-                it.inputType = InputType.TYPE_CLASS_NUMBER or
-                        InputType.TYPE_NUMBER_FLAG_DECIMAL or
-                        InputType.TYPE_NUMBER_FLAG_SIGNED
-            }
-            setOnPreferenceChangeListener { _, newValue ->
-                val valueStr = newValue.toString()
-                if (valueStr.isEmpty() || valueStr == "-" || valueStr.toDouble() < -413.0 || valueStr.toDouble() > 8850.0) {
-                    getString(R.string.pref_alt_input_error).toast(mainActivity)
-                    return@setOnPreferenceChangeListener false
-                }
-                return@setOnPreferenceChangeListener true
-            }
-        }
-
-        findPreference<EditTextPreference>(keyDelay)?.apply {
-            summaryProvider = provider
-            setOnBindEditTextListener { it.inputType = InputType.TYPE_CLASS_NUMBER }
-            setOnPreferenceChangeListener { _, newValue ->
-                val valueStr = newValue.toString()
-                if (valueStr.isEmpty() || valueStr.toLong() < 250 || valueStr.toLong() > 10000) {
-                    getString(R.string.pref_refresh_rate_input_error).toast(mainActivity)
-                    return@setOnPreferenceChangeListener false
-                }
-                return@setOnPreferenceChangeListener true
-            }
-        }
-    }
-
-    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
-        if (key == keyLat || key == keyLon || key == keyAlt) viewModel.setPositionFromPref()
-    }
-
-    override fun onResume() {
-        super.onResume()
-        preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
-    }
-
-    override fun onPause() {
-        super.onPause()
-        preferenceManager.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/SatEntryDialogFragment.kt

@@ -1,138 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.app.Dialog
-import android.os.Bundle
-import android.view.ViewGroup
-import android.view.Window
-import android.widget.SearchView
-import androidx.appcompat.app.AppCompatDialogFragment
-import androidx.recyclerview.widget.LinearLayoutManager
-import com.rtbishop.look4sat.data.SatEntry
-import com.rtbishop.look4sat.databinding.DialogSatEntryBinding
-import com.rtbishop.look4sat.ui.adapters.SatEntryAdapter
-import java.util.*
-
-class SatEntryDialogFragment(private var entries: MutableList<SatEntry>) :
-    AppCompatDialogFragment(), SearchView.OnQueryTextListener {
-
-    private lateinit var entriesListener: EntriesSubmitListener
-    private val entryAdapter = SatEntryAdapter(entries)
-    private var selectAllToggle = true
-
-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val binding = DialogSatEntryBinding.inflate(requireActivity().layoutInflater)
-        val satEntryDialog = Dialog(requireActivity()).apply {
-            window?.requestFeature(Window.FEATURE_NO_TITLE)
-            setContentView(binding.root)
-            window?.setLayout(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.MATCH_PARENT
-            )
-        }
-
-        binding.dialogSearch.apply {
-            setOnQueryTextListener(this@SatEntryDialogFragment)
-            onActionViewExpanded()
-            clearFocus()
-        }
-
-        binding.dialogRecycler.apply {
-            layoutManager = LinearLayoutManager(activity)
-            adapter = entryAdapter
-        }
-
-        binding.dialogBtnPositive.setOnClickListener { onPositiveClicked() }
-        binding.dialogBtnNegative.setOnClickListener { onNegativeClicked() }
-        binding.dialogBtnNeutral.setOnClickListener { onNeutralClicked() }
-
-        return satEntryDialog
-    }
-
-    fun setEntriesListener(listener: EntriesSubmitListener): SatEntryDialogFragment {
-        entriesListener = listener
-        return this
-    }
-
-    private fun filterEntries(list: MutableList<SatEntry>, query: String): MutableList<SatEntry> {
-        if (query.isEmpty()) return list
-        return try {
-            filterByCatNum(list, query.toInt())
-        } catch (e: NumberFormatException) {
-            filterByName(list, query)
-        }
-    }
-
-    private fun filterByCatNum(list: MutableList<SatEntry>, catNum: Int): MutableList<SatEntry> {
-        val filteredList = list.filter { it.catNum == catNum }
-        return filteredList as MutableList<SatEntry>
-    }
-
-    private fun filterByName(list: MutableList<SatEntry>, query: String): MutableList<SatEntry> {
-        val searchQuery = query.toLowerCase(Locale.getDefault())
-        val filteredList = mutableListOf<SatEntry>()
-        list.forEach {
-            val name = it.name.toLowerCase(Locale.getDefault())
-            if (name.contains(searchQuery)) filteredList.add(it)
-        }
-        return filteredList
-    }
-
-    private fun onPositiveClicked() {
-        val catNumList = mutableListOf<Int>().apply {
-            entries.forEach { if (it.isSelected) this.add(it.catNum) }
-        }
-        entriesListener.onEntriesSubmit(catNumList)
-        dismiss()
-    }
-
-    private fun onNegativeClicked() {
-        dismiss()
-    }
-
-    private fun onNeutralClicked() {
-        selectAllToggle = if (selectAllToggle) {
-            val currentList = entryAdapter.getEntries()
-            currentList.forEach { it.isSelected = true }
-            entryAdapter.setEntries(currentList)
-            false
-        } else {
-            val currentList = entryAdapter.getEntries()
-            currentList.forEach { it.isSelected = false }
-            entryAdapter.setEntries(currentList)
-            true
-        }
-    }
-
-    override fun onQueryTextChange(newText: String): Boolean {
-        val filteredList = filterEntries(entries, newText)
-        entryAdapter.setEntries(filteredList)
-        return false
-    }
-
-    override fun onQueryTextSubmit(query: String): Boolean {
-        return false
-    }
-
-    interface EntriesSubmitListener {
-        fun onEntriesSubmit(catNumList: MutableList<Int>)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/fragments/TleSourcesDialogFragment.kt

@@ -1,81 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.ui.fragments
-
-import android.app.Dialog
-import android.os.Bundle
-import android.view.ViewGroup
-import android.view.Window
-import androidx.appcompat.app.AppCompatDialogFragment
-import androidx.recyclerview.widget.LinearLayoutManager
-import com.rtbishop.look4sat.data.TleSource
-import com.rtbishop.look4sat.databinding.DialogTleSourcesBinding
-import com.rtbishop.look4sat.ui.adapters.TleSourcesAdapter
-
-class TleSourcesDialogFragment(sources: List<TleSource>) :
-    AppCompatDialogFragment() {
-
-    private lateinit var sourcesListener: SourcesSubmitListener
-    private val emptySource = TleSource("")
-    private val sourcesAdapter = TleSourcesAdapter(sources.toMutableList())
-
-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val binding = DialogTleSourcesBinding.inflate(requireActivity().layoutInflater)
-        val tleSourcesDialog = Dialog(requireActivity()).apply {
-            window?.requestFeature(Window.FEATURE_NO_TITLE)
-            setContentView(binding.root)
-            window?.setLayout(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.MATCH_PARENT
-            )
-        }
-
-        binding.tleSourcesRecycler.apply {
-            layoutManager = LinearLayoutManager(activity)
-            adapter = sourcesAdapter
-        }
-
-        binding.tleSourceBtnAdd.setOnClickListener {
-            val tempSources = sourcesAdapter.getSources()
-            tempSources.add(emptySource)
-            sourcesAdapter.setSources(tempSources)
-            sourcesAdapter.notifyDataSetChanged()
-        }
-
-        binding.tleSourcesBtnNeg.setOnClickListener { dismiss() }
-        binding.tleSourcesBtnPos.setOnClickListener {
-            val filteredSources = sourcesAdapter.getSources()
-                .filter { it.url != String() && it.url != " " && it.url.contains("https://") }
-            sourcesListener.onSourcesSubmit(filteredSources)
-            dismiss()
-        }
-
-        return tleSourcesDialog
-    }
-
-    fun setSourcesListener(listener: SourcesSubmitListener): TleSourcesDialogFragment {
-        sourcesListener = listener
-        return this
-    }
-
-    interface SourcesSubmitListener {
-        fun onSourcesSubmit(list: List<TleSource>)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/views/MapView.kt

@@ -1,171 +0,0 @@
-package com.rtbishop.look4sat.ui.views
-
-import android.annotation.SuppressLint
-import android.content.Context
-import android.graphics.*
-import android.view.View
-import androidx.core.content.ContextCompat
-import com.github.amsacode.predict4java.GroundStationPosition
-import com.github.amsacode.predict4java.Position
-import com.github.amsacode.predict4java.SatPos
-import com.github.amsacode.predict4java.TLE
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.data.SatPass
-import java.util.*
-import kotlin.math.abs
-
-class MapView(context: Context) : View(context) {
-
-    constructor(context: Context, groundStationPosition: GroundStationPosition) : this(context) {
-        gsp = groundStationPosition
-    }
-
-    private lateinit var passList: List<SatPass>
-    private lateinit var gsp: GroundStationPosition
-    private lateinit var selectedSat: TLE
-    private val scale = resources.displayMetrics.density
-    private val groundTrackPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satTrack)
-        style = Paint.Style.STROKE
-        strokeWidth = scale
-    }
-    private val satPaintPrim = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satPrimary)
-        style = Paint.Style.STROKE
-        strokeWidth = scale
-    }
-    private val satPaintSec = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satSecondary)
-        style = Paint.Style.STROKE
-        strokeWidth = scale
-    }
-    private val txtPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satPrimary)
-        style = Paint.Style.FILL
-        strokeWidth = scale
-        textSize = 16f
-        setShadowLayer(2f, 2f, 2f, Color.BLACK)
-    }
-    private val outlinePaint = Paint().apply {
-        isAntiAlias = true
-        color = Color.BLACK
-        style = Paint.Style.FILL_AND_STROKE
-        strokeWidth = scale
-        textSize = 16f
-    }
-    private val rect = Rect()
-    private var checked = 0
-    private var degLon = 0f
-    private var degLat = 0f
-
-    fun setList(satPassList: List<SatPass>) {
-        passList = satPassList
-    }
-
-    fun setChecked(item: Int) {
-        checked = item
-        selectedSat = passList[checked].tle
-    }
-
-    @SuppressLint("DrawAllocation")
-    override fun onDraw(canvas: Canvas) {
-        degLon = width / 360f
-        degLat = height / 180f
-        canvas.translate(width / 2f, height / 2f)
-        drawHomeLoc(canvas)
-        val currentTime = Date(System.currentTimeMillis())
-        val orbitalPeriod = (24 * 60 / selectedSat.meanmo).toInt()
-        val predictor = passList[checked].predictor
-        val positions = predictor.getPositions(currentTime, 60, 0, orbitalPeriod * 3)
-        drawGroundTrack(canvas, positions)
-        passList.forEach { satPass -> drawSat(canvas, satPass, currentTime, satPaintSec) }
-        drawSat(canvas, passList[checked], currentTime, satPaintPrim)
-    }
-
-    private fun drawHomeLoc(canvas: Canvas) {
-        val lon = gsp.longitude.toFloat()
-        val lat = gsp.latitude.toFloat() * -1
-        val cx = lon * degLon
-        val cy = lat * degLat
-        val gspName = context.getString(R.string.map_gsp)
-        txtPaint.getTextBounds(gspName, 0, gspName.length, rect)
-        canvas.drawCircle(cx, cy, scale * 2, txtPaint)
-        canvas.drawText(gspName, cx - rect.width() / 2, cy - txtPaint.textSize, outlinePaint)
-        canvas.drawText(gspName, cx - rect.width() / 2, cy - txtPaint.textSize, txtPaint)
-
-    }
-
-    private fun drawGroundTrack(canvas: Canvas, list: List<SatPos>) {
-        val path = Path()
-        var lon: Float
-        var lat: Float
-        var lastLon = 181f
-
-        list.withIndex().forEach { (index, satPos) ->
-            lon = Math.toDegrees(satPos.longitude).toFloat()
-            lat = Math.toDegrees(satPos.latitude).toFloat() * -1
-
-            if (lon > 180f) lon -= 360f
-
-            lon *= degLon
-            lat *= degLat
-
-            if (index == 0 || abs(lon - lastLon) > 180) path.moveTo(lon, lat)
-            else path.lineTo(lon, lat)
-
-            lastLon = lon
-        }
-        canvas.drawPath(path, groundTrackPaint)
-    }
-
-    private fun drawSat(canvas: Canvas, satPass: SatPass, date: Date, paint: Paint) {
-        val tle = satPass.tle
-        val predictor = satPass.predictor
-        val satPosNow = predictor.getSatPos(date)
-        val footprintPosList = satPosNow.rangeCircle
-        drawFootprint(canvas, footprintPosList, paint)
-        drawName(canvas, satPosNow, tle.name)
-    }
-
-    private fun drawFootprint(canvas: Canvas, list: List<Position>, paint: Paint) {
-        val path = Path()
-        var lon: Float
-        var lat: Float
-        var lastLon = 181f
-
-        list.withIndex().forEach { (index, position) ->
-            lon = position.lon.toFloat()
-            lat = position.lat.toFloat() * -1
-
-            if (lon > 180f) lon -= 360f
-
-            lon *= degLon
-            lat *= degLat
-
-            if (index == 0 || abs(lon - lastLon) > 180) path.moveTo(lon, lat)
-            else path.lineTo(lon, lat)
-
-            lastLon = lon
-        }
-        canvas.drawPath(path, paint)
-    }
-
-    private fun drawName(canvas: Canvas, position: SatPos, name: String) {
-        var lon = Math.toDegrees(position.longitude).toFloat()
-        val lat = Math.toDegrees(position.latitude).toFloat() * -1
-
-        if (lon > 180f) lon -= 360f
-
-        val cx = lon * degLon
-        val cy = lat * degLat
-
-        canvas.drawCircle(cx, cy, scale * 2, txtPaint)
-        txtPaint.getTextBounds(name, 0, name.length, rect)
-        canvas.drawText(name, cx - rect.width() / 2, cy - txtPaint.textSize, outlinePaint)
-        canvas.drawText(name, cx - rect.width() / 2, cy - txtPaint.textSize, txtPaint)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/ui/views/PolarView.kt

@@ -1,117 +0,0 @@
-package com.rtbishop.look4sat.ui.views
-
-import android.content.Context
-import android.graphics.Canvas
-import android.graphics.Paint
-import android.graphics.Path
-import android.view.View
-import androidx.core.content.ContextCompat
-import com.rtbishop.look4sat.R
-import com.rtbishop.look4sat.data.SatPass
-import java.util.*
-import kotlin.math.cos
-import kotlin.math.sin
-
-class PolarView(context: Context) : View(context) {
-
-    constructor(context: Context, satPass: SatPass) : this(context) {
-        pass = satPass
-    }
-
-    private lateinit var pass: SatPass
-    private val polarWidth = resources.displayMetrics.widthPixels
-    private val polarCenter = polarWidth / 2f
-    private val scale = resources.displayMetrics.density
-    private val radius = polarWidth * 0.49f
-    private val txtSize = scale * 15
-    private val path: Path = Path()
-    private var azimuth = 0f
-
-    private val radarPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.themeLight)
-        style = Paint.Style.STROKE
-        strokeWidth = scale
-    }
-    private val txtPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.themeAccent)
-        textSize = txtSize
-    }
-    private val trackPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satTrack)
-        style = Paint.Style.STROKE
-        strokeWidth = scale
-    }
-    private val satPaint = Paint().apply {
-        isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.themeAccent)
-        style = Paint.Style.FILL
-    }
-
-    override fun onDraw(canvas: Canvas) {
-        canvas.rotate(-azimuth, polarCenter, polarCenter)
-        canvas.translate(polarCenter, polarCenter)
-        drawRadarView(canvas)
-        drawRadarText(canvas)
-        if (!pass.tle.isDeepspace) {
-            drawPassTrajectory(canvas, pass)
-        }
-        drawSatellite(canvas, pass)
-    }
-
-    private fun drawRadarView(cvs: Canvas) {
-        cvs.drawLine(-radius, 0f, radius, 0f, radarPaint)
-        cvs.drawLine(0f, -radius, 0f, radius, radarPaint)
-        cvs.drawCircle(0f, 0f, radius, radarPaint)
-        cvs.drawCircle(0f, 0f, (radius / 3) * 2, radarPaint)
-        cvs.drawCircle(0f, 0f, radius / 3, radarPaint)
-    }
-
-    private fun drawRadarText(cvs: Canvas) {
-        cvs.drawText("N", scale, -radius + txtSize - scale * 2, txtPaint)
-        cvs.drawText("30°", scale, -((radius / 3) * 2) - scale * 2, txtPaint)
-        cvs.drawText("60°", scale, -(radius / 3) - scale * 2, txtPaint)
-        cvs.drawText("90°", scale, -scale * 2, txtPaint)
-    }
-
-    private fun drawPassTrajectory(cvs: Canvas, satPass: SatPass) {
-        val startTime = satPass.pass.startTime
-        val endTime = satPass.pass.endTime
-        while (startTime.before(endTime)) {
-            val satPos = satPass.predictor.getSatPos(startTime)
-            val x = sph2CartX(satPos.azimuth, satPos.elevation, radius.toDouble())
-            val y = sph2CartY(satPos.azimuth, satPos.elevation, radius.toDouble())
-            if (startTime.compareTo(satPass.pass.startTime) == 0) {
-                path.moveTo(x, -y)
-            } else {
-                path.lineTo(x, -y)
-            }
-            startTime.time += 15000
-        }
-        cvs.drawPath(path, trackPaint)
-    }
-
-    private fun drawSatellite(cvs: Canvas, satPass: SatPass) {
-        val date = Date(System.currentTimeMillis())
-        val satPos = satPass.predictor.getSatPos(date)
-        if (satPos.elevation > 0) {
-            val x = sph2CartX(satPos.azimuth, satPos.elevation, radius.toDouble())
-            val y = sph2CartY(satPos.azimuth, satPos.elevation, radius.toDouble())
-            cvs.drawCircle(x, -y, txtSize / 3, satPaint)
-        }
-    }
-
-    private fun sph2CartX(azimuth: Double, elevation: Double, r: Double): Float {
-        val piDiv2 = Math.PI / 2.0
-        val radius = r * (piDiv2 - elevation) / piDiv2
-        return (radius * cos(piDiv2 - azimuth)).toFloat()
-    }
-
-    private fun sph2CartY(azimuth: Double, elevation: Double, r: Double): Float {
-        val piDiv2 = Math.PI / 2.0
-        val radius = r * (piDiv2 - elevation) / piDiv2
-        return (radius * sin(piDiv2 - azimuth)).toFloat()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/utility/Converters.kt

@@ -1,19 +0,0 @@
-package com.rtbishop.look4sat.utility
-
-import androidx.room.TypeConverter
-import com.github.amsacode.predict4java.TLE
-import com.google.gson.Gson
-
-class Converters {
-    private val gSon = Gson()
-
-    @TypeConverter
-    fun tleToString(tle: TLE): String {
-        return gSon.toJson(tle)
-    }
-
-    @TypeConverter
-    fun tleFromString(string: String): TLE {
-        return gSon.fromJson(string, TLE::class.java)
-    }
-}

app/src/main/java/com/rtbishop/look4sat/utility/Extensions.kt

@@ -1,11 +0,0 @@
-package com.rtbishop.look4sat.utility
-
-import android.content.Context
-import android.widget.Toast
-
-object Extensions {
-
-    fun String.toast(context: Context, duration: Int = Toast.LENGTH_SHORT): Toast {
-        return Toast.makeText(context, this, duration).apply { show() }
-    }
-}

app/src/main/java/com/rtbishop/look4sat/utility/PassPredictor.kt

@@ -1,269 +0,0 @@
-/**
- * predict4java: An SDP4 / SGP4 library for satellite orbit predictions
- *
- * Copyright (C)  2004-2010  David A. B. Johnson, G4DPZ.
- *
- * This class is a Java port of one of the core elements of
- * the Predict program, Copyright John A. Magliacane,
- * KD2BD 1991-2003: http://www.qsl.net/kd2bd/predict.html
- *
- * Dr. T.S. Kelso is the author of the SGP4/SDP4 orbital models,
- * originally written in Fortran and Pascal, and released into the
- * public domain through his website (http://www.celestrak.com/).
- * Neoklis Kyriazis, 5B4AZ, later re-wrote Dr. Kelso's code in C,
- * and released it under the GNU GPL in 2002.
- * PREDICT's core is based on 5B4AZ's code translation efforts.
- *
- * Author: David A. B. Johnson, G4DPZ <dave></dave>@g4dpz.me.uk>
- *
- * Comments, questions and bugreports should be submitted via
- * http://sourceforge.net/projects/websat/
- * More details can be found at the project home page:
- *
- * http://websat.sourceforge.net
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, visit http://www.fsf.org/
- */
-package com.rtbishop.look4sat.utility
-
-import com.github.amsacode.predict4java.*
-import java.util.*
-
-class PassPredictor(private val tle: TLE, private val qth: GroundStationPosition) {
-    private val sat: Satellite = SatelliteFactory.createSatellite(tle)
-    private val south = "south"
-    private val north = "north"
-    private val deadSpotNone = "none"
-    private val speedOfLight = 2.99792458E8
-    private val twoPi = Math.PI * 2.0
-    private val timeZone: TimeZone = TimeZone.getTimeZone("UTC")
-    private var iterationCount = 0
-
-    fun getDownlinkFreq(freq: Long, date: Date): Long {
-        val cal = Calendar.getInstance(timeZone).apply {
-            clear()
-            timeInMillis = date.time
-        }
-        val satPos = getSatPos(cal.time)
-        val rangeRate = satPos.rangeRate
-        return (freq.toDouble() * (speedOfLight - rangeRate * 1000.0) / speedOfLight).toLong()
-    }
-
-    fun getUplinkFreq(freq: Long, date: Date): Long {
-        val cal = Calendar.getInstance(timeZone).apply {
-            clear()
-            timeInMillis = date.time
-        }
-        val satPos = getSatPos(cal.time)
-        val rangeRate = satPos.rangeRate
-        return (freq.toDouble() * (speedOfLight + rangeRate * 1000.0) / speedOfLight).toLong()
-    }
-
-    fun getSatPos(time: Date): SatPos {
-        iterationCount++
-        return sat.getPosition(qth, time)
-    }
-
-    fun getPositions(
-        referenceDate: Date,
-        incrementSeconds: Int,
-        minutesBefore: Int,
-        minutesAfter: Int
-    ): List<SatPos> {
-        val positions: MutableList<SatPos> = ArrayList()
-        val endDateDate = Date(referenceDate.time + minutesAfter * 60L * 1000L)
-        var trackDate = Date(referenceDate.time - minutesBefore * 60L * 1000L)
-
-        while (trackDate.before(endDateDate)) {
-            positions.add(getSatPos(trackDate))
-            trackDate = Date(trackDate.time + incrementSeconds * 1000)
-        }
-
-        return positions
-    }
-
-    fun getPasses(start: Date, hoursAhead: Int, windBack: Boolean): List<SatPassTime> {
-        iterationCount = 0
-
-        val satellite = SatelliteFactory.createSatellite(tle)
-        val passes: MutableList<SatPassTime> = ArrayList()
-        val trackEndDate = Date(start.time + hoursAhead * 60L * 60L * 1000L)
-        var trackStartDate = start
-        var windBackTime = windBack
-        var lastAOS: Date
-        var count = 0
-
-        if (satellite.willBeSeen(qth)) {
-            if (tle.isDeepspace) passes.add(nextGeoSatPass(start))
-            else {
-                do {
-                    if (count > 0) windBackTime = false
-                    val pass = nextSatPass(trackStartDate, windBackTime)
-                    lastAOS = pass.startTime
-                    passes.add(pass)
-                    trackStartDate =
-                        Date(pass.endTime.time + threeQuarterOrbitMinutes() * 60L * 1000L)
-                    count++
-                } while (lastAOS < trackEndDate)
-            }
-        }
-
-        return passes
-    }
-
-    private fun nextGeoSatPass(date: Date): SatPassTime {
-        val aosAzimuth: Int
-        val losAzimuth: Int
-        val tca: Date
-        val polePassed: String
-        val cal = Calendar.getInstance(timeZone).apply {
-            clear()
-            timeInMillis = date.time
-        }
-        val satPos = getSatPos(cal.time)
-
-        aosAzimuth = (satPos.azimuth / (2.0 * Math.PI) * 360.0).toInt()
-        losAzimuth = (satPos.azimuth / (2.0 * Math.PI) * 360.0).toInt()
-        tca = satPos.time
-        polePassed = getPolePassed(satPos, satPos)
-
-        cal.add(Calendar.HOUR, -12)
-        val startDate = cal.time
-        cal.add(Calendar.HOUR, 24)
-        val endDate = cal.time
-
-        return SatPassTime(
-            startDate, endDate, tca, polePassed, aosAzimuth,
-            losAzimuth, satPos.elevation / (2.0 * Math.PI) * 360.0
-        )
-    }
-
-    private fun nextSatPass(date: Date, windBack: Boolean = false): SatPassTime {
-        val aosAzimuth: Int
-        val losAzimuth: Int
-        var maxElevation = 0.0
-        var elevation: Double
-        var prevPos: SatPos
-        var polePassed = deadSpotNone
-
-        // get the current position
-        val cal = Calendar.getInstance(timeZone).apply {
-            clear()
-            timeInMillis = date.time
-        }
-
-        // wind back time 1/4 of an orbit
-        if (windBack) {
-            val meanMotion = tle.meanmo
-            cal.add(Calendar.MINUTE, (-24.0 * 60.0 / meanMotion / 4.0).toInt())
-        }
-        var satPos = getSatPos(cal.time)
-
-        // test for the elevation being above the horizon
-        if (satPos.elevation > 0.0) {
-            // move time forward in 30 second intervals until the sat goes below the horizon
-            do {
-                satPos = getPosition(cal, 60)
-            } while (satPos.elevation > 0.0)
-            // move time forward 3/4 orbit
-            cal.add(Calendar.MINUTE, threeQuarterOrbitMinutes())
-        }
-
-        // now find the next time it comes above the horizon
-        do {
-            satPos = getPosition(cal, 60)
-            elevation = satPos.elevation
-            if (elevation > maxElevation) {
-                maxElevation = elevation
-            }
-        } while (satPos.elevation < 0.0)
-
-        // refine it to 5 seconds
-        cal.add(Calendar.SECOND, -60)
-        do {
-            satPos = getPosition(cal, 5)
-            elevation = satPos.elevation
-            if (elevation > maxElevation) {
-                maxElevation = elevation
-            }
-            prevPos = satPos
-        } while (satPos.elevation < 0.0)
-        val startDate = satPos.time
-        aosAzimuth = (satPos.azimuth / (2.0 * Math.PI) * 360.0).toInt()
-
-        // now find when it goes below
-        do {
-            satPos = getPosition(cal, 30)
-            val currPolePassed = getPolePassed(prevPos, satPos)
-            if (currPolePassed != deadSpotNone) {
-                polePassed = currPolePassed
-            }
-            elevation = satPos.elevation
-            if (elevation > maxElevation) {
-                maxElevation = elevation
-            }
-            prevPos = satPos
-        } while (satPos.elevation > 0.0)
-
-        // refine it to 5 seconds
-        cal.add(Calendar.SECOND, -30)
-        do {
-            satPos = getPosition(cal, 5)
-            elevation = satPos.elevation
-            if (elevation > maxElevation) {
-                maxElevation = elevation
-            }
-        } while (satPos.elevation > 0.0)
-
-        val endDate = satPos.time
-        losAzimuth = (satPos.azimuth / (2.0 * Math.PI) * 360.0).toInt()
-        val tca = Date(startDate.time + (endDate.time - startDate.time) / 2)
-
-        return SatPassTime(
-            startDate, endDate, tca, polePassed, aosAzimuth,
-            losAzimuth, maxElevation / (2.0 * Math.PI) * 360.0
-        )
-    }
-
-    private fun getPosition(cal: Calendar, offSet: Int): SatPos {
-        cal.add(Calendar.SECOND, offSet)
-        return getSatPos(cal.time)
-    }
-
-    private fun getPolePassed(prevPos: SatPos, satPos: SatPos): String {
-        var polePassed = deadSpotNone
-        val az1 = prevPos.azimuth / twoPi * 360.0
-        val az2 = satPos.azimuth / twoPi * 360.0
-        if (az1 > az2) {
-            // we may be moving from 350 or greater through north
-            if (az1 > 350 && az2 < 10) polePassed = north
-            else {
-                // we may be moving from 190 or greater through south
-                if (az1 > 180 && az2 < 180) polePassed = south
-            }
-        } else {
-            // we may be moving from 10 or less through north
-            if (az1 < 10 && az2 > 350) polePassed = north
-            else {
-                // we may be moving from 170 or more through south
-                if (az1 < 180 && az2 > 180) polePassed = south
-            }
-        }
-        return polePassed
-    }
-
-    private fun threeQuarterOrbitMinutes(): Int {
-        return (24.0 * 60.0 / tle.meanmo * 0.75).toInt()
-    }
-}

app/src/main/java/com/rtbishop/look4sat/utility/PrefsManager.kt

@@ -1,124 +0,0 @@
-/*
- * Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
- * Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-package com.rtbishop.look4sat.utility
-
-import android.content.SharedPreferences
-import android.location.Location
-import android.location.LocationManager
-import androidx.core.content.edit
-import com.github.amsacode.predict4java.GroundStationPosition
-import javax.inject.Inject
-
-class PrefsManager @Inject constructor(
-    private val preferences: SharedPreferences,
-    private val locationManager: LocationManager
-) {
-    private val keyHoursAhead = "hoursAhead"
-    private val keyMinElevation = "minEl"
-    private val keyLatitude = "latitude"
-    private val keyLongitude = "longitude"
-    private val keyAltitude = "altitude"
-    private val keyRefreshRate = "rate"
-    private val keyCompass = "compass"
-    private val keyTimeUtc = "timeUTC"
-    private val defaultHoursAhead = 8
-    private val defaultMinEl = 16.0
-    private val defaultRefreshRate = "3000"
-    private val defaultGSP = "0.0"
-
-    fun isFirstLaunch(): Boolean {
-        val keyIsFirstLaunch = "keyIsFirstLaunch"
-        val isFirstLaunch = preferences.getBoolean(keyIsFirstLaunch, true)
-        return if (isFirstLaunch) {
-            preferences.edit {
-                putBoolean(keyIsFirstLaunch, false)
-                apply()
-            }
-            true
-        } else isFirstLaunch
-    }
-
-    fun isTimeUTC(): Boolean {
-        return preferences.getBoolean(keyTimeUtc, false)
-    }
-
-    fun getHoursAhead(): Int {
-        return preferences.getInt(keyHoursAhead, defaultHoursAhead)
-    }
-
-    fun getMinElevation(): Double {
-        return preferences.getDouble(keyMinElevation, defaultMinEl)
-    }
-
-    fun getRefreshRate(): Long {
-        return preferences.getString(keyRefreshRate, defaultRefreshRate)!!.toLong()
-    }
-
-    fun getCompass(): Boolean {
-        return preferences.getBoolean(keyCompass, true)
-    }
-
-    fun getPosition(): GroundStationPosition {
-        val lat = preferences.getString(keyLatitude, defaultGSP)!!.toDouble()
-        val lon = preferences.getString(keyLongitude, defaultGSP)!!.toDouble()
-        val alt = preferences.getString(keyAltitude, defaultGSP)!!.toDouble()
-        return GroundStationPosition(lat, lon, alt)
-    }
-
-    fun getLastKnownLocation(): Location? {
-        val provPassive = LocationManager.PASSIVE_PROVIDER
-        return try {
-            val location = locationManager.getLastKnownLocation(provPassive)
-            location?.let {
-                preferences.edit {
-                    putString(keyLatitude, location.latitude.toString())
-                    putString(keyLongitude, location.longitude.toString())
-                    putString(keyAltitude, location.altitude.toString())
-                    apply()
-                }
-            }
-            location
-        } catch (e: SecurityException) {
-            null
-        }
-    }
-
-    fun setHoursAhead(hours: Int) {
-        preferences.edit {
-            putInt(keyHoursAhead, hours)
-            apply()
-        }
-    }
-
-    fun setMinElevation(minEl: Double) {
-        preferences.edit {
-            putDouble(keyMinElevation, minEl)
-            apply()
-        }
-    }
-
-    private fun SharedPreferences.Editor.putDouble(key: String, double: Double) {
-        putLong(key, double.toRawBits())
-    }
-
-    private fun SharedPreferences.getDouble(key: String, default: Double): Double {
-        return Double.fromBits(getLong(key, default.toRawBits()))
-    }
-}