Add CAT radio control for full-duplex satellite operation (#207)

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

@@ -17,9 +17,28 @@
  */
 package com.rtbishop.look4sat
 
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.statusBars
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -27,8 +46,18 @@ import androidx.compose.material3.adaptive.navigationsuite.NavigationSuiteDefaul
 import androidx.compose.material3.adaptive.navigationsuite.NavigationSuiteScaffold
 import androidx.compose.material3.adaptive.navigationsuite.NavigationSuiteType
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.currentBackStackEntryAsState
@@ -36,9 +65,11 @@ import androidx.navigation.compose.rememberNavController
 import com.rtbishop.look4sat.core.presentation.Screen
 import com.rtbishop.look4sat.core.presentation.hasEnoughHeight
 import com.rtbishop.look4sat.core.presentation.hasEnoughWidth
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.feature.map.mapDestination
 import com.rtbishop.look4sat.feature.passes.passesDestination
 import com.rtbishop.look4sat.feature.radar.radarDestination
+import com.rtbishop.look4sat.feature.radiocontrol.radioControlDestination
 import com.rtbishop.look4sat.feature.satellites.satellitesDestination
 import com.rtbishop.look4sat.feature.settings.settingsDestination
 
@@ -47,6 +78,12 @@ fun MainScreen(navController: NavHostController = rememberNavController()) {
     val items = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Map, Screen.Settings)
     val currentDestination = navController.currentBackStackEntryAsState().value?.destination?.route
     val startDestination = Screen.Passes.route
+
+    // Observe radio tracking state for the status bar
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
+    val trackingState by container.radioTrackingService.state.collectAsStateWithLifecycle()
+
     NavigationSuiteScaffold(
         navigationSuiteItems = {
             items.forEach {
@@ -71,20 +108,78 @@ fun MainScreen(navController: NavHostController = rememberNavController()) {
             else -> NavigationSuiteType.ShortNavigationBarMedium
         }
     ) {
+        Column {
         NavHost(
             navController = navController,
             startDestination = startDestination,
             enterTransition =  { fadeIn(animationSpec = tween(350)) },
-            exitTransition = { fadeOut(animationSpec = tween(350)) }
+            exitTransition = { fadeOut(animationSpec = tween(350)) },
+            modifier = Modifier.weight(1f)
         ) {
             satellitesDestination { navController.navigateUp() }
             passesDestination { catNum: Int, aosTime: Long ->
                 val radarRoute = "${Screen.Radar.route}?catNum=${catNum}&aosTime=${aosTime}"
                 navController.navigate(radarRoute)
             }
-            radarDestination { navController.navigateUp() }
+            radarDestination(
+                navigateUp = { navController.navigateUp() },
+                navigateToRadioControl = { catNum, aosTime ->
+                    val route = "${Screen.RadioControl.route}?catNum=$catNum&aosTime=$aosTime"
+                    navController.navigate(route)
+                }
+            )
+            radioControlDestination { navController.navigateUp() }
             mapDestination()
             settingsDestination()
         }
+
+        // Radio tracking status banner (above bottom navigation)
+        if (trackingState.isActive) {
+            val infiniteTransition = rememberInfiniteTransition(label = "trackingPulse")
+            val alpha by infiniteTransition.animateFloat(
+                initialValue = 1f, targetValue = 0.4f,
+                animationSpec = infiniteRepeatable(
+                    animation = tween(1000, easing = LinearEasing),
+                    repeatMode = RepeatMode.Reverse
+                ), label = "pulseAlpha"
+            )
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .background(MaterialTheme.colorScheme.primaryContainer)
+                    .clickable {
+                        val pass = trackingState.currentPass
+                        if (pass != null) {
+                            val route = "${Screen.RadioControl.route}?catNum=${pass.catNum}&aosTime=${pass.aosTime}"
+                            navController.navigate(route)
+                        }
+                    }
+                    .padding(horizontal = 12.dp, vertical = 6.dp)
+            ) {
+                Box(
+                    modifier = Modifier
+                        .size(8.dp)
+                        .clip(CircleShape)
+                        .background(Color(0xFF4CAF50).copy(alpha = alpha))
+                )
+                Spacer(modifier = Modifier.width(8.dp))
+                Text(
+                    text = "Tracking: ${trackingState.currentPass?.name ?: ""}",
+                    fontSize = 13.sp,
+                    fontWeight = FontWeight.Medium,
+                    color = MaterialTheme.colorScheme.onPrimaryContainer,
+                    modifier = Modifier.weight(1f)
+                )
+                val txOk = if (trackingState.txConnected) "TX" else ""
+                val rxOk = if (trackingState.rxConnected) "RX" else ""
+                Text(
+                    text = listOf(txOk, rxOk).filter { it.isNotBlank() }.joinToString("/"),
+                    fontSize = 12.sp,
+                    color = MaterialTheme.colorScheme.onPrimaryContainer
+                )
+            }
+        }
+        } // end Column
     }
 }