store: Exclude DM conversations with muted users

Author: sm-sayedi

lib/model/store.dart

@@ -465,6 +465,7 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
       accountId: accountId,
       selfUserId: account.userId,
     );
+    final mutedUserIdsSorted = _sortMutedUsers(initialSnapshot.mutedUsers);
     final channels = ChannelStoreImpl(initialSnapshot: initialSnapshot);
     return PerAccountStore._(
       core: core,
@@ -482,6 +483,7 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
         core: core, allRealmEmoji: initialSnapshot.realmEmoji),
       userSettings: initialSnapshot.userSettings,
       mutedUsers: initialSnapshot.mutedUsers,
+      mutedUserIdsSorted: mutedUserIdsSorted,
       typingNotifier: TypingNotifier(
         core: core,
         typingStoppedWaitPeriod: Duration(
@@ -501,7 +503,10 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
         channelStore: channels,
       ),
       recentDmConversationsView: RecentDmConversationsView(core: core,
-        initial: initialSnapshot.recentPrivateConversations),
+        initial: _filterRecentPrivateConversations(
+          initialSnapshot.recentPrivateConversations,
+          mutedUserIdsSorted),
+      ),
       recentSenders: RecentSenders(),
     );
   }
@@ -521,6 +526,7 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
     required EmojiStoreImpl emoji,
     required this.userSettings,
     required this.mutedUsers,
+    required List<int> mutedUserIdsSorted,
     required this.typingNotifier,
     required UserStoreImpl users,
     required this.typingStatus,
@@ -531,7 +537,7 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
     required this.recentSenders,
   }) : _realmEmptyTopicDisplayName = realmEmptyTopicDisplayName,
        _emoji = emoji,
-       _mutedUserIdsSorted = _sortMutedUsers(mutedUsers),
+       _mutedUserIdsSorted = mutedUserIdsSorted,
        _users = users,
        _channels = channels,
        _messages = messages;
@@ -946,6 +952,19 @@ class PerAccountStore extends PerAccountStoreBase with ChangeNotifier, EmojiStor
     return mutedUsers.map((user) => user.id).toList()..sort();
   }
 
+  static List<RecentDmConversation> _filterRecentPrivateConversations(
+    List<RecentDmConversation> recentPms,
+    List<int> mutedUserIdsSorted,
+  ) {
+    bool isUserMuted(int id) =>
+      mutedUserIdsSorted.binarySearch(id, (a, b) => a.compareTo(b)) >= 0;
+
+    return recentPms
+      .where((conversation) =>
+        conversation.userIds.any((id) => !isUserMuted(id)))
+      .toList();
+  }
+
   @override
   String toString() => '${objectRuntimeType(this, 'PerAccountStore')}#${shortHash(this)}';
 }