From 8978cb0035696b25583d6b27e195ea27caf06a35 Mon Sep 17 00:00:00 2001
From: Sahil Kumar <xdsahil@gmail.com>
Date: Mon, 5 Jun 2023 16:55:41 +0530
Subject: [PATCH] fix(llc): Remove cached channel once left.

Signed-off-by: xsahil03x <xdsahil@gmail.com>
---
 .../stream_chat/lib/src/client/client.dart    | 22 ++++++++++++++++++-
 packages/stream_chat/lib/src/event_type.dart  |  4 ++--
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/packages/stream_chat/lib/src/client/client.dart b/packages/stream_chat/lib/src/client/client.dart
index 7627cf1d..d44750ed 100644
--- a/packages/stream_chat/lib/src/client/client.dart
+++ b/packages/stream_chat/lib/src/client/client.dart
@@ -1541,6 +1541,8 @@ class ClientState {
         currentUser = currentUser?.copyWith(totalUnreadCount: count);
       }));
 
+    _listenChannelLeft();
+
     _listenChannelDeleted();
 
     _listenChannelHidden();
@@ -1601,12 +1603,30 @@ class ClientState {
     );
   }
 
+  void _listenChannelLeft() {
+    _eventsSubscription?.add(
+      _client
+          .on(
+        EventType.memberRemoved,
+        EventType.notificationRemovedFromChannel,
+      )
+          .listen((event) async {
+        final isCurrentUser = event.user!.id == currentUser!.id;
+        if (isCurrentUser) {
+          final eventChannel = event.channel!;
+          await _client.chatPersistenceClient
+              ?.deleteChannels([eventChannel.cid]);
+          channels.remove(eventChannel.cid)?.dispose();
+        }
+      }),
+    );
+  }
+
   void _listenChannelDeleted() {
     _eventsSubscription?.add(
       _client
           .on(
         EventType.channelDeleted,
-        EventType.notificationRemovedFromChannel,
         EventType.notificationChannelDeleted,
       )
           .listen((Event event) async {
diff --git a/packages/stream_chat/lib/src/event_type.dart b/packages/stream_chat/lib/src/event_type.dart
index f8fb7ed7..5bf6e0fd 100644
--- a/packages/stream_chat/lib/src/event_type.dart
+++ b/packages/stream_chat/lib/src/event_type.dart
@@ -63,7 +63,7 @@ class EventType {
   static const String notificationAddedToChannel =
       'notification.added_to_channel';
 
-  /// Event sent when the user is removed to a channel
+  /// Event sent when the user is removed from a channel
   static const String notificationRemovedFromChannel =
       'notification.removed_from_channel';
 
@@ -76,7 +76,7 @@ class EventType {
   /// Event sent when a member is added to a channel
   static const String memberAdded = 'member.added';
 
-  /// Event sent when a member is removed to a channel
+  /// Event sent when a member is removed from a channel
   static const String memberRemoved = 'member.removed';
 
   /// Event sent when a member is updated in a channel