refactor: use gorouter for navigation

packages/stream_chat_v1/lib/utils/local_notification_observer.dart

@@ -0,0 +1,69 @@
+import 'dart:async';
+
+import 'package:example/routes/routes.dart';
+import 'package:example/utils/notifications_service.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class LocalNotificationObserver extends NavigatorObserver {
+  Route? currentRoute;
+  late final StreamSubscription _subscription;
+
+  LocalNotificationObserver(
+    StreamChatClient client,
+    GlobalKey<NavigatorState> navigatorKey,
+  ) {
+    _subscription = client
+        .on(
+      EventType.messageNew,
+      EventType.notificationMessageNew,
+    )
+        .listen((event) {
+      _handleEvent(event, client, navigatorKey);
+    });
+  }
+
+  void _handleEvent(Event event, StreamChatClient client,
+      GlobalKey<NavigatorState> navigatorKey) {
+    if (event.message?.user?.id == client.state.currentUser?.id) {
+      return;
+    }
+    final channelId = event.cid;
+    if (currentRoute?.settings.name == Routes.CHANNEL_PAGE.name) {
+      final args = currentRoute?.settings.arguments as Map<String, String>;
+      if (args['cid'] == channelId) {
+        return;
+      }
+    }
+
+    showLocalNotification(
+      event,
+      client.state.currentUser!.id,
+      navigatorKey.currentState!.context,
+    );
+  }
+
+  @override
+  void didPop(Route route, Route? previousRoute) {
+    currentRoute = route;
+  }
+
+  @override
+  void didPush(Route route, Route? previousRoute) {
+    currentRoute = route;
+  }
+
+  @override
+  void didRemove(Route route, Route? previousRoute) {
+    currentRoute = route;
+  }
+
+  @override
+  void didReplace({Route? newRoute, Route? oldRoute}) {
+    currentRoute = newRoute;
+  }
+
+  void dispose() {
+    _subscription.cancel();
+  }
+}

packages/stream_chat_v1/lib/utils/notifications_service.dart

@@ -1,9 +1,9 @@
-import 'package:example/pages/channel_page.dart';
 import 'package:example/utils/localizations.dart';
 import 'package:example/routes/routes.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart'
     hide Message;
+import 'package:go_router/go_router.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 void showLocalNotification(
@@ -35,7 +35,7 @@ void showLocalNotification(
     onSelectNotification: (channelCid) async {
       if (channelCid != null) {
         final client = StreamChat.of(context).client;
-        final navigator = Navigator.of(context);
+        final router = GoRouter.of(context);
 
         var channel = client.state.channels[channelCid];
 
@@ -50,11 +50,9 @@ void showLocalNotification(
           await channel.watch();
         }
 
-        navigator.pushNamed(
-          Routes.CHANNEL_PAGE,
-          arguments: ChannelPageArgs(
-            channel: channel,
-          ),
+        router.pushNamed(
+          Routes.CHANNEL_PAGE.name,
+          params: Routes.CHANNEL_PAGE.params(channel),
         );
       }
     },