fix(llc): handle channel mute expiration.

Signed-off-by: xsahil03x <xdsahil@gmail.com>

packages/stream_chat/lib/src/client/channel.dart

@@ -1447,15 +1447,32 @@ class Channel {
     );
   }
 
+  // Timer to keep track of mute expiration. This is used to update the channel
+  // state when the mute expires.
+  Timer? _muteExpirationTimer;
+
   /// Mutes the channel.
   Future<EmptyResponse> mute({Duration? expiration}) {
     _checkInitialized();
+
+    // If there is a expiration set, we will set a timer to automatically unmute
+    // the channel when the mute expires.
+    if (expiration != null) {
+      _muteExpirationTimer?.cancel();
+      _muteExpirationTimer = Timer(expiration, unmute);
+    }
+
     return _client.muteChannel(cid!, expiration: expiration);
   }
 
   /// Unmute the channel.
   Future<EmptyResponse> unmute() {
     _checkInitialized();
+
+    // Cancel the mute expiration timer if it is set.
+    _muteExpirationTimer?.cancel();
+    _muteExpirationTimer = null;
+
     return _client.unmuteChannel(cid!);
   }
 

packages/stream_chat/test/src/client/channel_test.dart

@@ -2481,6 +2481,31 @@ void main() {
           )).called(1);
     });
 
+    test('`.mute with expiration`', () async {
+      const expiration = Duration(seconds: 3);
+
+      when(() => client.muteChannel(
+            channelCid,
+            expiration: expiration,
+          )).thenAnswer((_) async => EmptyResponse());
+
+      when(() => client.unmuteChannel(channelCid))
+          .thenAnswer((_) async => EmptyResponse());
+
+      final res = await channel.mute(expiration: expiration);
+
+      expect(res, isNotNull);
+
+      verify(() => client.muteChannel(
+            channelCid,
+            expiration: expiration,
+          )).called(1);
+
+      // wait for expiration
+      await Future.delayed(expiration);
+      verify(() => client.unmuteChannel(channelCid)).called(1);
+    });
+
     test('`.unmute`', () async {
       when(
         () => client.unmuteChannel(channelCid),