namespace Application.Abstractions.Chat;

public interface IChatConnectionTracker
{
    Task AddAsync(string roomKey, ConnectedUser user);
    Task RemoveAsync(string roomKey, string connectionId);
    Task<IReadOnlyList<ConnectedUser>> GetByRoomAsync(string roomKey);
    Task<int> GetCountByRoomAsync(string roomKey);

    // 전체 룸에 걸친 접속자 + 룸 키 (관리자 집계용)
    Task<IReadOnlyList<(
        string RoomKey,
        ConnectedUser User
    )>> GetAllAsync();
    Task ClearAllAsync();
}