public async Task AddBidToItemAsync(NewBidDTO dto, string userId)
{
Item item = await _unitOfWork.ItemRepo.GetById(dto.ItemId);
if (item.UserId == userId)
{
throw new Exception("You cannot add offer to own item.");
}
var bestBid = await GetBestBidAsync(item.Id);
if (bestBid.Username == dto.Username)
{
throw new Exception("You cannot outbid yourself");
}
item.AddBid(new Bid
{
BidAmount = dto.MyBid,
DatePlaced = DateTime.Now,
UserId = userId,
Username = dto.Username
});
_unitOfWork.Save();
}
public async Task <IActionResult> CreateAuctionBid(NewBidViewModel model)
{
if (!ModelState.IsValid)
{
ModelState.AddModelError("", "Niepoprawne dane.");
return(RedirectToAction("Item", "Item", new { id = model.ItemId, area = "" }));
}
NewBidDTO dto = _mappper.Map <NewBidViewModel, NewBidDTO>(model);
string userId = User.FindFirst(ClaimTypes.NameIdentifier).Value;
string username = User.FindFirst(ClaimTypes.Name).Value;
dto.Username = username;
await _itemService.AddBidToItemAsync(dto, userId);
return(RedirectToAction("Index", "Home", new { area = "" }));
}
public async Task <NewBidDTO> GetBestBidAsync(int itemid)
{
var item = await _unitOfWork.ItemRepo.GetById(itemid);
List <Bid> bids = item.Bids;
if (bids.Count > 0)
{
var maxBidAmount = bids.Max(m => m.BidAmount);
var bestBid = bids.OrderBy(o => o.DatePlaced).First(f => f.BidAmount == maxBidAmount);
NewBidDTO dto = _mapper.Map <Bid, NewBidDTO>(bestBid);
return(dto);
}
return(new NewBidDTO
{
BestBidPrice = 0.00M,
ItemId = itemid,
ItemName = item.Name,
MyBid = 0.00M
});
}
