Заготовка опросов

backend/src/Modules/Messaging/Infrastructure/Persistence/MessageRepository.cs

@@ -62,6 +62,19 @@ public sealed class MessageRepository : IMessageRepository
             .FirstOrDefaultAsync(cancellationToken);
     }
 
+    public async Task<List<Message>> GetPinnedMessagesAsync(Guid chatId, CancellationToken cancellationToken)
+    {
+        var builder = Builders<Message>.Filter;
+        var filter = builder.And(
+            builder.Eq(m => m.ChatId, chatId),
+            builder.BitsAnySet(m => m.State, (long)MessageState.IsPinned)
+        );
+
+        return await _messages.Find(filter)
+            .SortByDescending(m => m.CreatedAt)
+            .ToListAsync(cancellationToken);
+    }
+
     public async Task<List<Message>> GetChatMessagesCursorAsync(Guid chatId, DateTime? cursor, long? sequenceId, int limit, CancellationToken cancellationToken)
     {
         var builder = Builders<Message>.Filter;