public async Task <IHttpActionResult> SetRating(string dealId, [FromBody] RatingRequestViewModel ratingModel)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
string username = HttpContext.Current.User.Identity.Name;
IdentityResult result = await _repo.SetRating(username, dealId, ratingModel);
IHttpActionResult errorResult = GetErrorResult(result);
return(errorResult == null?Ok() : errorResult);
}
public async Task <IdentityResult> SetRating(string username, string dealId, RatingRequestViewModel ratingModel)
{
Deal deal = await _context.Deals.FirstOrDefaultAsync(d => d.Id == dealId);
if (deal == null)
{
return(IdentityResult.Failed($"Deal with id '{dealId}' not found."));
}
if (deal.IsClosed)
{
return(IdentityResult.Failed("Deal is closed."));
}
if (deal.UserCreditor == null)
{
return(IdentityResult.Failed("Deal has not creditor still."));
}
if (deal.UserCreditor.UserName != username)
{
return(IdentityResult.Failed($"Deal creditor username are not equal param creditor username. '{deal.UserCreditor.UserName}' are not equal '{username}'."));
}
// logic with update rating for deal
short oldDealRatingPositive = 0;
if (deal.RatingPositive.HasValue)
{
oldDealRatingPositive = deal.RatingPositive.Value;
}
deal.RatingPositive = ratingModel.Positive;
short oldDealRatingNegative = 0;
if (deal.RatingNegative.HasValue)
{
oldDealRatingNegative = deal.RatingNegative.Value;
}
deal.RatingNegative = ratingModel.Negative;
// logic with update rating for user owner
long koef = (long)Math.Ceiling(deal.StartAmount / 100);
long userPositiveRating = (ratingModel.Positive - oldDealRatingPositive) * koef;
if (deal.UserOwner.UserInfo.RatingPositive.HasValue)
{
deal.UserOwner.UserInfo.RatingPositive += userPositiveRating;
}
else
{
deal.UserOwner.UserInfo.RatingPositive = userPositiveRating;
}
long userNegativeRating = (ratingModel.Negative - oldDealRatingNegative) * koef;
if (deal.UserOwner.UserInfo.RatingNegative.HasValue)
{
deal.UserOwner.UserInfo.RatingNegative += userNegativeRating;
}
else
{
deal.UserOwner.UserInfo.RatingNegative = userNegativeRating;
}
// save changes
try
{
await _context.SaveChangesAsync();
return(IdentityResult.Success);
}
catch (DbEntityValidationException ex)
{
_logger.Error("DealRepository.SetRating", ex);
return(IdentityResult.Failed(ex.GetValidationErrors()));
}
catch (Exception ex)
{
_logger.Error("DealRepository.SetRating", ex);
return(null);
}
}
