No notification permission enforcement on web

lib/main.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:audioplayers/audioplayers.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:supabase_flutter/supabase_flutter.dart';
@@ -56,17 +57,37 @@ Future<void> main() async {
 
   // ensure token saved right away if already signed in
   final supaClient = Supabase.instance.client;
-  final initialToken = await FirebaseMessaging.instance.getToken();
-  if (initialToken != null && supaClient.auth.currentUser != null) {
-    debugPrint('initial FCM token for signed-in user: $initialToken');
-    final ctrl = NotificationsController(supaClient);
-    await ctrl.registerFcmToken(initialToken);
+  String? initialToken;
+  if (!kIsWeb) {
+    try {
+      initialToken = await FirebaseMessaging.instance.getToken();
+    } catch (e) {
+      debugPrint('FCM getToken failed: $e');
+      initialToken = null;
+    }
+    if (initialToken != null && supaClient.auth.currentUser != null) {
+      debugPrint('initial FCM token for signed-in user: $initialToken');
+      final ctrl = NotificationsController(supaClient);
+      await ctrl.registerFcmToken(initialToken);
+    }
   }
 
   // listen for auth changes to register/unregister token accordingly
   supaClient.auth.onAuthStateChange.listen((data) async {
     final event = data.event;
-    final token = await FirebaseMessaging.instance.getToken();
+    if (kIsWeb) {
+      debugPrint(
+        'auth state change $event on web: skipping FCM token handling',
+      );
+      return;
+    }
+    String? token;
+    try {
+      token = await FirebaseMessaging.instance.getToken();
+    } catch (e) {
+      debugPrint('FCM getToken failed during auth change: $e');
+      token = null;
+    }
     debugPrint('auth state change $event, token=$token');
     if (token == null) return;
     final ctrl = NotificationsController(supaClient);
@@ -77,18 +98,20 @@ Future<void> main() async {
     }
   });
 
-  // on Android 13+ we must request POST_NOTIFICATIONS at runtime; without it
-  // notifications are automatically denied and cannot be re‑enabled from the
-  // system settings.  The helper uses `permission_handler`.
-  final granted = await ensureNotificationPermission();
-  if (!granted) {
-    // we don’t block startup, but it’s worth logging so developers notice.  A
-    // real app might show a dialog pointing the user to settings.
-    // debugPrint('notification permission not granted');
-  }
+  if (!kIsWeb) {
+    // on Android 13+ we must request POST_NOTIFICATIONS at runtime; without it
+    // notifications are automatically denied and cannot be re‑enabled from the
+    // system settings. The helper uses `permission_handler`.
+    final granted = await ensureNotificationPermission();
+    if (!granted) {
+      // we don’t block startup, but it’s worth logging so developers notice.
+      // A real app might show a dialog pointing the user to settings.
+      // debugPrint('notification permission not granted');
+    }
 
-  // request FCM permission (iOS/Android13+) and handle foreground messages
-  await FirebaseMessaging.instance.requestPermission();
+    // request FCM permission (iOS/Android13+) and handle foreground messages
+    await FirebaseMessaging.instance.requestPermission();
+  }
   FirebaseMessaging.onMessage.listen((RemoteMessage message) {
     final notification = message.notification;
     if (notification != null) {
@@ -160,25 +183,35 @@ class NotificationSoundObserver extends ProviderObserver {
 
       if (profile != null) {
         // signed in: save current token and keep listening for refreshes
-        FirebaseMessaging.instance.getToken().then((token) {
-          if (token != null) {
-            debugPrint('profile observer registering token: $token');
+        if (!kIsWeb) {
+          FirebaseMessaging.instance
+              .getToken()
+              .then((token) {
+                if (token != null) {
+                  debugPrint('profile observer registering token: $token');
+                  controller.registerFcmToken(token);
+                }
+              })
+              .catchError((e) => debugPrint('getToken error: $e'));
+          _tokenSub = FirebaseMessaging.instance.onTokenRefresh.listen((token) {
+            debugPrint('token refreshed: $token');
             controller.registerFcmToken(token);
-          }
-        });
-        _tokenSub = FirebaseMessaging.instance.onTokenRefresh.listen((token) {
-          debugPrint('token refreshed: $token');
-          controller.registerFcmToken(token);
-        });
+          });
+        }
       } else {
         // signed out: unregister whatever token we currently have
         _tokenSub?.cancel();
-        FirebaseMessaging.instance.getToken().then((token) {
-          if (token != null) {
-            debugPrint('profile observer unregistering token: $token');
-            controller.unregisterFcmToken(token);
-          }
-        });
+        if (!kIsWeb) {
+          FirebaseMessaging.instance
+              .getToken()
+              .then((token) {
+                if (token != null) {
+                  debugPrint('profile observer unregistering token: $token');
+                  controller.unregisterFcmToken(token);
+                }
+              })
+              .catchError((e) => debugPrint('getToken error: $e'));
+        }
       }
     }
   }