Fix app crash if Bluetooth adapter is null and we can't retrieve the list of bonded devices in settings.

app-common/src/main/java/eu/darken/capod/common/bluetooth/BleScanner.kt

@@ -35,7 +35,7 @@ class BleScanner @Inject constructor(
         log(TAG, VERBOSE) { "scan(filters=$filters, scannerMode=$scannerMode, compatMode=$compatMode)" }
         if (compatMode) log(TAG, WARN) { "Using compatibilityMode!" }
 
-        val adapter = bluetoothManager.adapter
+        val adapter = bluetoothManager.adapter ?: throw IllegalStateException("Bluetooth adapter unavailable")
 
         val supportsOffloadFiltering = adapter.isOffloadedFilteringSupported.also {
             log(TAG, if (it) DEBUG else WARN) { "isOffloadedFilteringSupported=$it" }
@@ -45,7 +45,7 @@ class BleScanner @Inject constructor(
             log(TAG, if (it) DEBUG else WARN) { "isOffloadedScanBatchingSupported=$it" }
         } && !compatMode
 
-        val scanner = bluetoothManager.scanner
+        val scanner = bluetoothManager.scanner ?: throw IllegalStateException("BLE scanner unavailable")
 
         val callback = object : ScanCallback() {
             var lastScanAt = System.currentTimeMillis()

app-common/src/main/java/eu/darken/capod/common/bluetooth/BluetoothManager2.kt

@@ -30,12 +30,11 @@ class BluetoothManager2 @Inject constructor(
     private val dispatcherProvider: DispatcherProvider,
 ) {
 
-    val adapter: BluetoothAdapter
+    val adapter: BluetoothAdapter?
         get() = manager.adapter
 
-    val scanner: BluetoothLeScanner
-        get() = adapter.bluetoothLeScanner
-            ?: throw IllegalStateException("Bluetooth is disabled or permissiong missing")
+    val scanner: BluetoothLeScanner?
+        get() = adapter?.bluetoothLeScanner
 
     val isBluetoothEnabled: Flow<Boolean> = callbackFlow {
         send(manager.adapter?.isEnabled ?: false)
@@ -158,7 +157,9 @@ class BluetoothManager2 @Inject constructor(
             }
         }
 
-    fun bondedDevices(): Set<BluetoothDevice> = adapter.bondedDevices
+    fun bondedDevices(): Flow<Set<BluetoothDevice>> = flow {
+        emit(adapter?.bondedDevices ?: throw IllegalStateException("Bluetooth adapter unavailable"))
+    }
 
     suspend fun nudgeConnection(device: BluetoothDevice): Boolean = getBluetoothProfile().map { bluetoothProfile ->
         try {

app-common/src/main/java/eu/darken/capod/reaction/core/autoconnect/AutoConnect.kt

@@ -46,7 +46,8 @@ class AutoConnect @Inject constructor(
                 return@map
             }
 
-            val bondedDevice = bluetoothManager.bondedDevices().firstOrNull { it.address == mainDeviceAddr }
+            val bondedDevice = bluetoothManager.bondedDevices().first().firstOrNull { it.address == mainDeviceAddr }
+
             if (bondedDevice == null) {
                 log(TAG, WARN) { "No bonded device matches $mainDeviceAddr" }
                 return@map