public async Task <BidResponse> Place(BidRequestDto bidRequestDto)
{
var bidResponse = await ValidateBid(bidRequestDto);
if (!bidResponse.Success)
{
return(bidResponse);
}
try
{
var bid = _mapper.Map <BidRequestDto, Bid>(bidRequestDto);
var bidGuid = await Task.Run(() => _bidRepository.Place(bid));
var responseBidDto = _mapper.Map <Bid, BidRequestDto>(bid);
responseBidDto.Guid = bidGuid;
bidResponse.bidDto = responseBidDto;
bidResponse.CurrentBidCount = _bidRepository.GetCountByAuctionItemId(bidRequestDto.AuctionItemId);
bidResponse.Message = $"${bidRequestDto.Amount} bid received.";
return(bidResponse);
}
catch (Exception e)
{
return(new BidResponse
{
Success = false,
Message = $"An error occurred while placing bid : {e.Message}"
});
}
}
private async Task <BidResponse> ValidateBid(BidRequestDto bidRequestDto)
{
var auctionItem = await _auctionRepository.GetAsync(bidRequestDto.AuctionItemId);
var lastBidItem = _bidRepository.GetLastBidByAuctionItemId(bidRequestDto.AuctionItemId);
if (auctionItem == null)
{
return(new BidResponse
{
Success = false,
Message = "Cannot find auction item."
});
}
if (bidRequestDto.Amount == 0)
{
return(new BidResponse
{
Success = false,
Message = "Bid amount is required."
});
}
if (lastBidItem != null && bidRequestDto.Amount <= lastBidItem.Amount)
{
return(new BidResponse
{
Success = false,
Message = $"Last bid amount is ${lastBidItem.Amount}. Please bid higher."
});
}
if (bidRequestDto.Amount <= auctionItem.StartPrice)
{
return(new BidResponse
{
Success = false,
Message = $"Start price for this item is ${auctionItem.StartPrice}."
});
}
if (auctionItem.EndTime < bidRequestDto.BidTime)
{
return(new BidResponse
{
Success = false,
Message = "This auction is closed."
});
}
return(new BidResponse
{
Success = true
});
}
public async Task <ActionResult <BidResponse> > PostAsync([FromBody] BidRequestDto bidRequestDto)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState.GetErrorMessages()));
}
var bidResponse = await _bidService.Place(bidRequestDto);
if (!bidResponse.Success)
{
return(BadRequest(bidResponse.Message));
}
return(Ok(bidResponse));
}