Added automatic data update worker

app/build.gradle

@@ -73,6 +73,7 @@ dependencies {
     implementation "androidx.navigation:navigation-runtime-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
+    implementation "androidx.work:work-runtime-ktx:$work_version"
     implementation "androidx.room:room-runtime:$room_version"
     implementation "androidx.room:room-ktx:$room_version"
     kapt "androidx.room:room-compiler:$room_version"

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

@@ -0,0 +1,20 @@
+package com.rtbishop.look4sat.framework
+
+import android.content.Context
+import android.util.Log
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import com.rtbishop.look4sat.presentation.MainApplication
+import java.text.DateFormat
+import java.util.*
+
+class UpdateWorker constructor(private val appContext: Context, workerParams: WorkerParameters) :
+    Worker(appContext, workerParams) {
+
+    override fun doWork(): Result {
+        val dateTime = DateFormat.getDateTimeInstance().format(Calendar.getInstance().time)
+        Log.d("UpdateWorker", "Started periodic data update on $dateTime")
+        (appContext.applicationContext as MainApplication).repository.updateFromWeb()
+        return Result.success()
+    }
+}

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

@@ -31,8 +31,11 @@ import androidx.fragment.app.Fragment
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleEventObserver
 import androidx.navigation.fragment.findNavController
+import androidx.work.*
 import com.rtbishop.look4sat.databinding.ActivityMainBinding
+import com.rtbishop.look4sat.framework.UpdateWorker
 import dagger.hilt.android.AndroidEntryPoint
+import java.util.concurrent.TimeUnit
 
 @AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
@@ -43,6 +46,7 @@ class MainActivity : AppCompatActivity() {
         installSplashScreen()
         super.onCreate(savedInstanceState)
         setContentView(ActivityMainBinding.inflate(layoutInflater).root)
+        refreshUpdateWorker(this)
     }
 
     override fun attachBaseContext(newBase: Context?) {
@@ -51,6 +55,14 @@ class MainActivity : AppCompatActivity() {
         applyOverrideConfiguration(newConfig)
         super.attachBaseContext(newBase)
     }
+
+    private fun refreshUpdateWorker(context: Context, workerName: String = "UpdateWorker") {
+        val workPolicy = ExistingPeriodicWorkPolicy.REPLACE
+        val network = Constraints.Builder().setRequiredNetworkType(NetworkType.CONNECTED).build()
+        val request = PeriodicWorkRequest.Builder(UpdateWorker::class.java, 24, TimeUnit.HOURS)
+            .setConstraints(network).build()
+        WorkManager.getInstance(context).enqueueUniquePeriodicWork(workerName, workPolicy, request)
+    }
 }
 
 fun <T> Fragment.getNavResult(@IdRes id: Int, key: String, onResult: (result: T) -> Unit) {

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

@@ -18,7 +18,13 @@
 package com.rtbishop.look4sat.presentation
 
 import android.app.Application
+import com.rtbishop.look4sat.domain.IDataRepository
 import dagger.hilt.android.HiltAndroidApp
+import javax.inject.Inject
 
 @HiltAndroidApp
-class MainApplication : Application()
+class MainApplication : Application() {
+
+    @Inject
+    lateinit var repository: IDataRepository
+}

build.gradle

@@ -10,6 +10,7 @@ buildscript {
         constraint_version = '2.1.4'
         lifecycle_version = '2.5.1'
         navigation_version = '2.5.1'
+        work_version = '2.7.1'
         room_version = '2.4.3'
         material_version = '1.6.1'
         osmdroid_version = '6.1.13'