public async Task AddUserMovieAsync(int movieId, ClaimsPrincipal sessionUser)
{
var alreadyAssigned = await GetUserMovieByUserIdAsync(movieId, sessionUser);
if (alreadyAssigned != null)
{
throw new FlowException("User already has this movie!");
}
var currentUserId = Convert.ToInt32(sessionUser.FindFirst("Id").Value);
_userMovieRepository.Add(DTOToModel.AddUserMovieToUserMovie(movieId, currentUserId));
await _userMovieRepository.SaveEntitiesAsync();
}
