From f5718e36562abf30b472ac170a7e9667f77f8e40 Mon Sep 17 00:00:00 2001
From: Tommy Chow <tommyxchow@gmail.com>
Date: Mon, 8 Jun 2026 22:42:37 -0700
Subject: [PATCH] fix(chat): restore channel assets when leaving shared chat

When a shared chat session ended, the participants' merged emotes and badges
stayed in the channel asset maps, so the other streamer's emote set and badges
kept showing (#522). Only the enter transition was handled.

Detect the leave transition (was shared, no longer shared) and reset: clear the
loaded-participant tracking and re-run getAssets(), which replaces the channel
emote/badge maps with this channel's own assets. Guarded on having actually
loaded shared assets so a flapping source-room-id tag can't cause redundant
refetches.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 .../channel/chat/stores/chat_assets_store.dart       | 12 ++++++++++++
 lib/screens/channel/chat/stores/chat_store.dart      | 10 ++++++++++
 2 files changed, 22 insertions(+)

diff --git a/lib/screens/channel/chat/stores/chat_assets_store.dart b/lib/screens/channel/chat/stores/chat_assets_store.dart
index c1ec05f7..2efd626c 100644
--- a/lib/screens/channel/chat/stores/chat_assets_store.dart
+++ b/lib/screens/channel/chat/stores/chat_assets_store.dart
@@ -290,6 +290,18 @@ abstract class ChatAssetsStoreBase with Store {
     await Future.wait(futures);
   }
 
+  /// Whether any shared chat participant assets have been merged in.
+  bool get hasLoadedSharedChatAssets => _loadedSharedChannelIds.isNotEmpty;
+
+  /// Clears tracking of merged shared chat participant assets so that leaving
+  /// and later re-entering a shared chat session re-fetches cleanly. The caller
+  /// must re-fetch this channel's own assets afterwards (which replaces the
+  /// merged emote/badge maps). Must run within a MobX action.
+  void resetSharedChatAssets() {
+    _loadedSharedChannelIds.clear();
+    sharedSevenTvSetIds.clear();
+  }
+
   /// Load and cache shared chat participants for a broadcaster.
   /// Returns the list of new participant broadcaster IDs (deduped).
   @action
diff --git a/lib/screens/channel/chat/stores/chat_store.dart b/lib/screens/channel/chat/stores/chat_store.dart
index ccc93d6c..4ed851ea 100644
--- a/lib/screens/channel/chat/stores/chat_store.dart
+++ b/lib/screens/channel/chat/stores/chat_store.dart
@@ -611,6 +611,16 @@ abstract class ChatStoreBase with Store {
                 showFFZEmotes: settings.showFFZEmotes,
                 showFFZBadges: settings.showFFZBadges,
               );
+            } else if (wasShared &&
+                !_isInSharedChatMode &&
+                assetsStore.hasLoadedSharedChatAssets) {
+              // On leaving shared chat, drop the participants' merged emotes and
+              // badges and restore just this channel's assets — otherwise the
+              // other streamer's emote set and badges linger (#522). Guarded on
+              // having actually loaded shared assets so a flapping tag can't
+              // trigger redundant refetches.
+              assetsStore.resetSharedChatAssets();
+              getAssets();
             }
             messageBuffer.add(parsedIRCMessage);
             break;