feat: Add map navigation, enhance FCM deep linking, localize Google Places API, and refine activity display.

lib/services/notification_service.dart

@@ -4,6 +4,12 @@ import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:travel_mate/services/logger_service.dart';
+import 'package:flutter/material.dart';
+import 'package:travel_mate/services/error_service.dart';
+import 'package:travel_mate/repositories/group_repository.dart';
+import 'package:travel_mate/repositories/account_repository.dart';
+import 'package:travel_mate/components/group/chat_group_content.dart';
+import 'package:travel_mate/components/account/group_expenses_page.dart';
 
 @pragma('vm:entry-point')
 Future<void> firebaseMessagingBackgroundHandler(RemoteMessage message) async {
@@ -43,6 +49,7 @@ class NotificationService {
       onDidReceiveNotificationResponse: (details) {
         // Handle notification tap
         LoggerService.info('Notification tapped: ${details.payload}');
+        // TODO: Handle local notification tap if needed, usually we rely on FCM callbacks
       },
     );
 
@@ -52,6 +59,10 @@ class NotificationService {
     // Handle token refresh
     FirebaseMessaging.instance.onTokenRefresh.listen(_onTokenRefresh);
 
+    // Setup interacted message (Deep Linking)
+    // We don't call this here anymore, it will be called from HomePage
+    // await setupInteractedMessage();
+
     _isInitialized = true;
     LoggerService.info('NotificationService initialized');
 
@@ -60,6 +71,87 @@ class NotificationService {
     LoggerService.info('Current FCM Token: $token');
   }
 
+  /// Sets up the background message listener.
+  /// Should be called when the app is ready to handle navigation.
+  void startListening() {
+    // Handle any interaction when the app is in the background via a
+    // Stream listener
+    FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
+      _handleNotificationTap(message.data);
+    });
+  }
+
+  /// Checks for an initial message (app opened from terminated state)
+  /// and handles it if present.
+  Future<void> handleInitialMessage() async {
+    // Get any messages which caused the application to open from
+    // a terminated state.
+    RemoteMessage? initialMessage = await _firebaseMessaging
+        .getInitialMessage();
+
+    if (initialMessage != null) {
+      LoggerService.info('Found initial message: ${initialMessage.data}');
+      _handleNotificationTap(initialMessage.data);
+    }
+  }
+
+  Future<void> _handleNotificationTap(Map<String, dynamic> data) async {
+    LoggerService.info('Handling notification tap with data: $data');
+    // DEBUG: Show snackbar to verify payload
+    // ErrorService().showSnackbar(message: 'Debug: Payload $data', isError: false);
+
+    final type = data['type'];
+
+    try {
+      if (type == 'message') {
+        final groupId = data['groupId'];
+        if (groupId != null) {
+          final groupRepository = GroupRepository();
+          final group = await groupRepository.getGroupById(groupId);
+          if (group != null) {
+            ErrorService.navigatorKey.currentState?.push(
+              MaterialPageRoute(
+                builder: (context) => ChatGroupContent(group: group),
+              ),
+            );
+          } else {
+            LoggerService.error('Group not found: $groupId');
+            // ErrorService().showError(message: 'Groupe introuvable: $groupId');
+          }
+        } else {
+          LoggerService.error('Missing groupId in payload');
+          // ErrorService().showError(message: 'Payload invalide: groupId manquant');
+        }
+      } else if (type == 'expense') {
+        final tripId = data['tripId'];
+        if (tripId != null) {
+          final accountRepository = AccountRepository();
+          final groupRepository = GroupRepository();
+
+          final account = await accountRepository.getAccountByTripId(tripId);
+          final group = await groupRepository.getGroupByTripId(tripId);
+
+          if (account != null && group != null) {
+            ErrorService.navigatorKey.currentState?.push(
+              MaterialPageRoute(
+                builder: (context) =>
+                    GroupExpensesPage(account: account, group: group),
+              ),
+            );
+          } else {
+            LoggerService.error('Account or Group not found for trip: $tripId');
+            // ErrorService().showError(message: 'Compte ou Groupe introuvable');
+          }
+        }
+      } else {
+        LoggerService.info('Unknown notification type: $type');
+      }
+    } catch (e) {
+      LoggerService.error('Error handling notification tap: $e');
+      ErrorService().showError(message: 'Erreur navigation: $e');
+    }
+  }
+
   Future<void> _onTokenRefresh(String newToken) async {
     LoggerService.info('FCM Token refreshed: $newToken');
     // We need the user ID to save the token.