public ActionResult <List <Tournament> > GetActiveTournaments(string userId = null)
        {
            List <Tournament> TournamentList = new List <Tournament>();

            try
            {
                if (userId != null)
                {
                    Int32.TryParse(userId, out int UserId);
                    User user = unitOfWork.UserRepository.GetByID(UserId);
                    if (user.GetType() == typeof(Player))
                    {
                        foreach (var league in unitOfWork.TournamentRepository.Get(null, null, "League"))
                        {
                            foreach (var leagueMembership in (user as Player).LeagueMemberShips)
                            {
                                if (league.LeagueId == leagueMembership.LeagueId)
                                {
                                    TournamentList.Add(league);
                                }
                            }
                        }
                    }
                    else
                    {
                        foreach (var league in unitOfWork.TournamentRepository.Get(null, null, "League"))
                        {
                            foreach (var League in (user as LeagueOwner).Leagues)
                            {
                                if (league.LeagueId == League.LeagueId)
                                {
                                    TournamentList.Add(league);
                                }
                            }
                        }
                    }
                }
                else
                {
                    foreach (var league in unitOfWork.TournamentRepository.Get(null, null, "League"))
                    {
                        TournamentList.Add(league);
                    }
                }
                return(TournamentList);
            }
            catch (Exception)
            {
                return(StatusCode(500, "Something went wrong!"));
            }
        }