public async Task RemoveWinnerAsync(int drawingId, int userId)
{
int authUserId = GetClaimId(ClaimType.UserId);
if (HasPermission(Permission.PerformDrawing))
{
var winner = await _drawingRepository.GetDrawingWinnerById(drawingId, userId);
if (!winner.RedeemedAt.HasValue)
{
await _drawingRepository.RemoveWinnerAsync(drawingId, userId);
var winnerCount = await _drawingRepository.GetWinnerCountAsync(drawingId);
if (winnerCount == 0)
{
await _drawingRepository.SetArchivedAsync(authUserId, drawingId, true);
}
}
else
{
_logger.LogError($"User {authUserId} cannot remove user {userId} from drawing {drawingId}.");
throw new GraException("Winners who have claimed their prize cannot be removed.");
}
}
else
{
_logger.LogError($"User {authUserId} doesn't have permission to remove user {userId} from drawing {drawingId}.");
throw new GraException("Permission denied.");
}
}