fix foreground service and add noitification nav

lib/connector/meshcore_connector.dart

@@ -40,6 +40,7 @@ import '../storage/contact_settings_store.dart';
 import '../storage/contact_store.dart';
 import '../storage/message_store.dart';
 import '../storage/unread_store.dart';
+import '../storage/last_device_store.dart';
 import '../utils/app_logger.dart';
 import '../utils/battery_utils.dart';
 import '../utils/platform_info.dart';
@@ -281,6 +282,7 @@ class MeshCoreConnector extends ChangeNotifier {
   final ContactDiscoveryStore _discoveryContactStore = ContactDiscoveryStore();
   final ChannelStore _channelStore = ChannelStore();
   final UnreadStore _unreadStore = UnreadStore();
+  final LastDeviceStore _lastDeviceStore = LastDeviceStore();
   List<Channel> _cachedChannels = [];
   final Map<int, bool> _channelSmazEnabled = {};
   bool _lastSentWasCliCommand =
@@ -768,6 +770,10 @@ class MeshCoreConnector extends ChangeNotifier {
     _appDebugLogService = appDebugLogService;
     _backgroundService = backgroundService;
     _timeoutPredictionService = timeoutPredictionService;
+
+    // When the app resumes from background, check if we need to reconnect.
+    _backgroundService?.onResume = _onAppResumed;
+
     _usbManager.setDebugLogService(_appDebugLogService);
     _tcpConnector.setDebugLogService(_appDebugLogService);
 
@@ -1879,6 +1885,7 @@ class MeshCoreConnector extends ChangeNotifier {
       );
 
       _setState(MeshCoreConnectionState.connected);
+      _lastDeviceStore.persistLastDevice(_deviceId!, _deviceDisplayName!);
       if (_shouldGateInitialChannelSync) {
         _hasReceivedDeviceInfo = false;
         _pendingInitialChannelSync = true;
@@ -2225,6 +2232,56 @@ class MeshCoreConnector extends ChangeNotifier {
     });
   }
 
+  /// Called by [BackgroundService] when the app returns to the foreground.
+  /// If the BLE connection was lost while backgrounded, this kicks off an
+  /// immediate reconnect attempt instead of waiting for the next timer tick.
+  void _onAppResumed() {
+    if (_shouldAutoReconnect &&
+        _state != MeshCoreConnectionState.connected &&
+        _state != MeshCoreConnectionState.connecting) {
+      _appDebugLogService?.info(
+        'App resumed – triggering reconnect check',
+        tag: 'Lifecycle',
+      );
+      _cancelReconnectTimer();
+      _scheduleReconnect();
+    } else if (_state == MeshCoreConnectionState.disconnected &&
+        _lastDeviceId == null) {
+      // App was fully restarted (swiped away).  Try to restore from prefs.
+      tryAutoReconnect();
+    }
+  }
+
+  /// Attempt to reconnect to the last persisted BLE device.
+  ///
+  /// Called on fresh app start (after a swipe-away kill) so the user is
+  /// brought straight back to the connected state instead of the scan screen.
+  Future<bool> tryAutoReconnect() async {
+    if (_state == MeshCoreConnectionState.connecting ||
+        _state == MeshCoreConnectionState.connected) {
+      return false;
+    }
+    final deviceId = _lastDeviceStore.getPersistedDeviceId();
+    if (deviceId!.isEmpty) {
+      return false;
+    }
+
+    final displayName = _lastDeviceStore.getPersistedDeviceName();
+    _appDebugLogService?.info(
+      'Auto-reconnecting to $deviceId ($displayName)',
+      tag: 'Lifecycle',
+    );
+
+    try {
+      final device = BluetoothDevice.fromId(deviceId);
+      await connect(device, displayName: displayName);
+      return true;
+    } catch (e) {
+      _appDebugLogService?.error('Auto-reconnect failed: $e', tag: 'Lifecycle');
+      return false;
+    }
+  }
+
   Future<void> disconnect({
     bool manual = true,
     bool skipBleDeviceDisconnect = false,
@@ -2245,6 +2302,8 @@ class MeshCoreConnector extends ChangeNotifier {
     if (manual) {
       _manualDisconnect = true;
       _cancelReconnectTimer();
+      _lastDeviceStore.clearPersistedDevice();
+      _notificationService.cancelAll();
       unawaited(_backgroundService?.stop());
     } else {
       _manualDisconnect = false;
@@ -4910,6 +4969,17 @@ class MeshCoreConnector extends ChangeNotifier {
         );
   }
 
+  /// Public accessor to find a channel by its index.
+  Channel? findChannelByIndex(int index) => _findChannelByIndex(index);
+
+  /// Find a contact by its public key hex string.
+  Contact? findContactByKeyHex(String keyHex) {
+    return _contacts.cast<Contact?>().firstWhere(
+      (c) => c?.publicKeyHex == keyHex,
+      orElse: () => null,
+    );
+  }
+
   void _maybeIncrementChannelUnread(
     ChannelMessage message, {
     required bool isNew,

lib/main.dart

@@ -1,10 +1,16 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter_foreground_task/flutter_foreground_task.dart';
 import 'l10n/app_localizations.dart';
 import 'package:provider/provider.dart';
 
+import 'screens/channel_chat_screen.dart';
+import 'screens/chat_screen.dart';
 import 'screens/chrome_required_screen.dart';
+import 'screens/discovery_screen.dart';
 import 'utils/platform_info.dart';
 
 import 'connector/meshcore_connector.dart';
@@ -125,7 +131,7 @@ https://creativecommons.org/licenses/by/4.0/
   });
 }
 
-class MeshCoreApp extends StatelessWidget {
+class MeshCoreApp extends StatefulWidget {
   final MeshCoreConnector connector;
   final MessageRetryService retryService;
   final PathHistoryService pathHistoryService;
@@ -155,67 +161,136 @@ class MeshCoreApp extends StatelessWidget {
     required this.timeoutPredictionService,
   });
 
+  @override
+  State<MeshCoreApp> createState() => _MeshCoreAppState();
+}
+
+class _MeshCoreAppState extends State<MeshCoreApp> {
+  final GlobalKey<NavigatorState> _navigatorKey = GlobalKey<NavigatorState>();
+  StreamSubscription<NotificationTapEvent>? _notificationTapSubscription;
+
+  @override
+  void initState() {
+    super.initState();
+    _notificationTapSubscription = NotificationService().onNotificationTapped
+        .listen(_handleNotificationTap);
+  }
+
+  @override
+  void dispose() {
+    _notificationTapSubscription?.cancel();
+    super.dispose();
+  }
+
+  void _handleNotificationTap(NotificationTapEvent event) {
+    final navigator = _navigatorKey.currentState;
+    if (navigator == null) return;
+
+    switch (event.type) {
+      case NotificationTapEventType.message:
+        if (event.id == null) return;
+        final contact = widget.connector.findContactByKeyHex(event.id!);
+        if (contact == null) return;
+        widget.connector.markContactRead(contact.publicKeyHex);
+        navigator.push(
+          MaterialPageRoute(builder: (_) => ChatScreen(contact: contact)),
+        );
+        break;
+      case NotificationTapEventType.channel:
+        if (event.id == null) return;
+        final channelIndex = int.tryParse(event.id!);
+        if (channelIndex == null) return;
+        final channel = widget.connector.findChannelByIndex(channelIndex);
+        if (channel == null) return;
+        widget.connector.markChannelRead(channelIndex);
+        navigator.push(
+          MaterialPageRoute(
+            builder: (_) => ChannelChatScreen(channel: channel),
+          ),
+        );
+        break;
+      case NotificationTapEventType.advert:
+        // Clear every advert notification — the discovery
+        // list the user is about to see contains them all.
+        NotificationService().clearAllAdvertNotifications();
+        final ids = widget.connector.allContacts
+            .map((c) => c.publicKeyHex)
+            .toList();
+        NotificationService().clearAdvertNotifications(ids);
+        navigator.push(
+          MaterialPageRoute(builder: (_) => const DiscoveryScreen()),
+        );
+        break;
+      case NotificationTapEventType.batch:
+        // Batch summaries have no single target; no-op.
+        break;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return MultiProvider(
       providers: [
-        ChangeNotifierProvider.value(value: connector),
-        ChangeNotifierProvider.value(value: retryService),
-        ChangeNotifierProvider.value(value: pathHistoryService),
-        ChangeNotifierProvider.value(value: appSettingsService),
-        ChangeNotifierProvider.value(value: bleDebugLogService),
-        ChangeNotifierProvider.value(value: appDebugLogService),
-        ChangeNotifierProvider.value(value: chatTextScaleService),
-        ChangeNotifierProvider.value(value: translationService),
-        ChangeNotifierProvider.value(value: uiViewStateService),
-        Provider.value(value: storage),
-        Provider.value(value: mapTileCacheService),
-        ChangeNotifierProvider.value(value: timeoutPredictionService),
+        ChangeNotifierProvider.value(value: widget.connector),
+        ChangeNotifierProvider.value(value: widget.retryService),
+        ChangeNotifierProvider.value(value: widget.pathHistoryService),
+        ChangeNotifierProvider.value(value: widget.appSettingsService),
+        ChangeNotifierProvider.value(value: widget.bleDebugLogService),
+        ChangeNotifierProvider.value(value: widget.appDebugLogService),
+        ChangeNotifierProvider.value(value: widget.chatTextScaleService),
+        ChangeNotifierProvider.value(value: widget.translationService),
+        ChangeNotifierProvider.value(value: widget.uiViewStateService),
+        Provider.value(value: widget.storage),
+        Provider.value(value: widget.mapTileCacheService),
+        ChangeNotifierProvider.value(value: widget.timeoutPredictionService),
       ],
       child: Consumer<AppSettingsService>(
         builder: (context, settingsService, child) {
-          return MaterialApp(
-            title: 'MeshCore Open',
-            debugShowCheckedModeBanner: false,
-            localizationsDelegates: const [
-              AppLocalizations.delegate,
-              GlobalMaterialLocalizations.delegate,
-              GlobalWidgetsLocalizations.delegate,
-              GlobalCupertinoLocalizations.delegate,
-            ],
-            supportedLocales: AppLocalizations.supportedLocales,
-            locale: _localeFromSetting(
-              settingsService.settings.languageOverride,
-            ),
-            theme: ThemeData(
-              colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
-              useMaterial3: true,
-              snackBarTheme: const SnackBarThemeData(
-                behavior: SnackBarBehavior.floating,
+          return WithForegroundTask(
+            child: MaterialApp(
+              navigatorKey: _navigatorKey,
+              title: 'MeshCore Open',
+              debugShowCheckedModeBanner: false,
+              localizationsDelegates: const [
+                AppLocalizations.delegate,
+                GlobalMaterialLocalizations.delegate,
+                GlobalWidgetsLocalizations.delegate,
+                GlobalCupertinoLocalizations.delegate,
+              ],
+              supportedLocales: AppLocalizations.supportedLocales,
+              locale: _localeFromSetting(
+                settingsService.settings.languageOverride,
               ),
-            ),
-            darkTheme: ThemeData(
-              colorScheme: ColorScheme.fromSeed(
-                seedColor: Colors.blue,
-                brightness: Brightness.dark,
+              theme: ThemeData(
+                colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
+                useMaterial3: true,
+                snackBarTheme: const SnackBarThemeData(
+                  behavior: SnackBarBehavior.floating,
+                ),
               ),
-              useMaterial3: true,
-              snackBarTheme: const SnackBarThemeData(
-                behavior: SnackBarBehavior.floating,
+              darkTheme: ThemeData(
+                colorScheme: ColorScheme.fromSeed(
+                  seedColor: Colors.blue,
+                  brightness: Brightness.dark,
+                ),
+                useMaterial3: true,
+                snackBarTheme: const SnackBarThemeData(
+                  behavior: SnackBarBehavior.floating,
+                ),
               ),
+              themeMode: _themeModeFromSetting(
+                settingsService.settings.themeMode,
+              ),
+              builder: (context, child) {
+                // Update notification service with resolved locale
+                final locale = Localizations.localeOf(context);
+                NotificationService().setLocale(locale);
+                return child ?? const SizedBox.shrink();
+              },
+              home: (PlatformInfo.isWeb && !PlatformInfo.isChrome)
+                  ? const ChromeRequiredScreen()
+                  : const ScannerScreen(),
             ),
-            themeMode: _themeModeFromSetting(
-              settingsService.settings.themeMode,
-            ),
-            builder: (context, child) {
-              // Update notification service with resolved locale
-              final locale = Localizations.localeOf(context);
-              NotificationService().setLocale(locale);
-              return child ?? const SizedBox.shrink();
-            },
-            home: (PlatformInfo.isWeb && !PlatformInfo.isChrome)
-                ? const ChromeRequiredScreen()
-                : const ScannerScreen(),
           );
         },
       ),

lib/screens/discovery_screen.dart

@@ -8,6 +8,7 @@ import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';
 import '../l10n/l10n.dart';
 import '../models/contact.dart';
+import '../services/notification_service.dart';
 import '../utils/contact_search.dart';
 import '../utils/platform_info.dart';
 import '../widgets/app_bar.dart';
@@ -31,6 +32,20 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
   DiscoverySortOption discoverySortOption = DiscoverySortOption.lastSeen;
   Timer? _searchDebounce;
 
+  @override
+  void initState() {
+    super.initState();
+    _clearAdvertNotifications();
+  }
+
+  void _clearAdvertNotifications() {
+    final connector = context.read<MeshCoreConnector>();
+    final ids = connector.allContacts.map((c) => c.publicKeyHex).toList();
+    final ns = NotificationService();
+    ns.clearAllAdvertNotifications();
+    ns.clearAdvertNotifications(ids);
+  }
+
   @override
   void dispose() {
     _searchController.dispose();

lib/screens/scanner_screen.dart

@@ -7,6 +7,7 @@ import 'package:provider/provider.dart';
 import '../connector/meshcore_connector.dart';
 import '../l10n/l10n.dart';
 import '../services/linux_ble_error_classifier.dart';
+import '../services/notification_service.dart';
 import '../utils/app_logger.dart';
 import '../widgets/adaptive_app_bar_title.dart';
 import '../widgets/device_tile.dart';
@@ -43,6 +44,10 @@ class _ScannerScreenState extends State<ScannerScreen> {
           isCurrentRoute &&
           !_changedNavigation) {
         _changedNavigation = true;
+        // Prompt for notification permission on first
+        // connect so notifications work out of the box
+        // on Android 13+.
+        NotificationService().requestPermissions();
         if (mounted) {
           Navigator.of(context).push(
             MaterialPageRoute(builder: (context) => const ContactsScreen()),
@@ -53,6 +58,12 @@ class _ScannerScreenState extends State<ScannerScreen> {
 
     _connector.addListener(_connectionListener);
 
+    // If the app was killed (swipe-away) and relaunched, try to reconnect
+    // to the last known device so the user doesn't have to scan again.
+    if (_connector.state == MeshCoreConnectionState.disconnected) {
+      _connector.tryAutoReconnect();
+    }
+
     _bluetoothStateSubscription = FlutterBluePlus.adapterState.listen(
       (state) {
         if (mounted) {