Refactor "Disconnect" and "Track" logic

core/data/src/main/java/com/rtbishop/look4sat/core/data/framework/Ic705Controller.kt

@@ -84,19 +84,21 @@ class Ic705Controller(
         }
     }
 
-    override suspend fun disconnect() = withContext(Dispatchers.IO) {
-        try {
-            inputStream?.close()
-            outputStream?.close()
-            socket?.close()
-        } catch (e: Exception) {
-            Log.e(tag, "Disconnect error: ${e.message}")
-        } finally {
-            inputStream  = null
-            outputStream = null
-            socket       = null
-            isConnected  = false
-            Log.i(tag, "Disconnected from $deviceAddress")
+    override suspend fun disconnect() {
+        withContext(Dispatchers.IO) {
+            try {
+                inputStream?.close()
+                outputStream?.close()
+                socket?.close()
+            } catch (e: Exception) {
+                Log.e(tag, "Disconnect error: ${e.message}")
+            } finally {
+                inputStream  = null
+                outputStream = null
+                socket       = null
+                isConnected  = false
+                Log.i(tag, "Disconnected from $deviceAddress")
+            }
         }
     }
 

core/data/src/main/java/com/rtbishop/look4sat/core/data/framework/RadioTrackingService.kt

@@ -31,6 +31,7 @@ import com.rtbishop.look4sat.core.domain.repository.RadioTrackingState
 import com.rtbishop.look4sat.core.domain.utility.TransponderMapper
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -189,7 +190,7 @@ class RadioTrackingService(
         var lastReadFreq  = 0L
         var stableCount   = 0
 
-        while (isActive) {
+        while (currentCoroutineContext().isActive) {
             val currentState = _state.value
             if (!currentState.isActive) break
 
@@ -360,7 +361,7 @@ class RadioTrackingService(
         // After initial setup we never change VFO or band.
         // We only update the active-VFO frequency using CMD 0x25 sub 0x00.
         // The IC-705 automatically makes VFO-B active while PTT is pressed.
-        while (isActive) {
+        while (currentCoroutineContext().isActive) {
             val currentState = _state.value
             if (!currentState.isActive) break