public async Task UpdateAttendStatusAsync(UpdateAttendStatusDto updateAttendStatusDto)
{
var @event = await _eventsDbSet
.Include(x => x.EventParticipants)
.Include(x => x.EventOptions)
.Include(x => x.EventType)
.Where(x => x.Id == updateAttendStatusDto.EventId &&
x.OrganizationId == updateAttendStatusDto.OrganizationId)
.Select(MapEventToJoinValidationDto)
.FirstOrDefaultAsync();
_eventValidationService.CheckIfEventExists(@event);
// ReSharper disable once PossibleNullReferenceException
_eventValidationService.CheckIfRegistrationDeadlineIsExpired(@event.RegistrationDeadline);
_eventValidationService.CheckIfAttendStatusIsValid(updateAttendStatusDto.AttendStatus);
_eventValidationService.CheckIfAttendOptionIsAllowed(updateAttendStatusDto.AttendStatus, @event);
await AddParticipantWithStatusAsync(updateAttendStatusDto.UserId, updateAttendStatusDto.AttendStatus, updateAttendStatusDto.AttendComment, @event);
await _uow.SaveChangesAsync(false);
}
