public ActionResult <StatisticsViewModel <IEnumerable <SellOfferViewModel> > > GetSell()
{
var statisticsDto = new StatisticsDTO();
var offerDto = _sellOfferService.GetAll(statisticsDto).Select(s => Mapper.Map <SellOfferViewModel>(s)).ToList();
var statistics = Mapper.Map <StatisticsViewModel <IEnumerable <SellOfferViewModel> > >(statisticsDto);
statistics.Data = offerDto;
return(statistics);
}
public void FindSellOffers(BuyOfferDTO buyOffer, UserDTO currentUser, StatisticsDTO statistics)
{
if (currentUser.Value < buyOffer.Amount * buyOffer.Price)
{
return;
}
var offers = _sellOfferService.GetAll(statistics).Where(o => o.Price <= buyOffer.Price).OrderBy(o => o.Price);
foreach (var offer in offers)
{
int tradedAmount;
if (buyOffer.Amount < offer.Amount)
{
var price = offer.Amount * offer.Price;
offer.Amount -= buyOffer.Amount;
tradedAmount = buyOffer.Amount;
var targetUser = _userService.GetUserById(offer.SellerId, statistics);
//money got exchanged
targetUser.Value += price;
currentUser.Value -= price;
currentUser.Password = null;
targetUser.Password = null;
_userService.EditUser(currentUser.Id, currentUser, statistics);
_userService.EditUser(targetUser.Id, targetUser, statistics);
//shares were taken from source
var targetedShare = _shareService.GetShareById(offer.ShareId, statistics);
targetedShare.Amount -= buyOffer.Amount;
_shareService.EditShare(targetedShare.Id, targetedShare, statistics);
//if current user has company share add them if not create entry for them
var currentUserShare = _shareService.GetAllShares(statistics).Where(c => c.OwnerId == currentUser.Id).Where(c => c.StockId == buyOffer.StockId).FirstOrDefault();
if (currentUserShare != null)
{
currentUserShare.Amount += buyOffer.Amount;
_shareService.EditShare(currentUserShare.Id, currentUserShare, statistics);
}
else
{
currentUserShare = new ShareDTO
{
OwnerId = currentUser.Id,
Amount = buyOffer.Amount,
StockId = buyOffer.StockId,
};
_shareService.AddShare(currentUserShare, statistics);
}
//Modify offer that we took shares from
_sellOfferService.Edit(offer, statistics);
buyOffer.Amount = 0;
}
else
{
var price = offer.Amount * offer.Price;
buyOffer.Amount -= offer.Amount;
tradedAmount = offer.Amount;
var targetUser = _userService.GetUserById(offer.SellerId, statistics);
//money got exchanged
targetUser.Value += price;
currentUser.Value -= price;
currentUser.Password = null;
targetUser.Password = null;
_userService.EditUser(currentUser.Id, currentUser, statistics);
_userService.EditUser(targetUser.Id, targetUser, statistics);
//taking shares from seller offer
var targetedShare = _shareService.GetShareById(offer.ShareId, statistics);
targetedShare.Amount -= offer.Amount;
_shareService.EditShare(targetedShare.Id, targetedShare, statistics);
//giving shares to buyer
var currentUserShare = _shareService.GetAllShares(statistics).Where(c => c.OwnerId == currentUser.Id).Where(c => c.StockId == buyOffer.StockId).FirstOrDefault();
if (currentUserShare != null)
{
currentUserShare.Amount += buyOffer.Amount;
_shareService.EditShare(currentUserShare.Id, currentUserShare, statistics);
}
else
{
currentUserShare = new ShareDTO
{
OwnerId = currentUser.Id,
Amount = buyOffer.Amount,
StockId = buyOffer.StockId,
};
_shareService.AddShare(currentUserShare, statistics);
}
//deleting offer
_sellOfferService.Delete(offer.Id, statistics);
}
TransactionDTO transaction = new TransactionDTO
{
Amount = tradedAmount,
Price = offer.Price,
BuyerId = currentUser.Id,
SellerId = offer.SellerId,
StockId = buyOffer.StockId,
Date = DateTime.Now
};
_transactionService.Add(transaction, statistics);
}
if (buyOffer.Amount > 0)
{
buyOffer.BuyerId = currentUser.Id;
_buyOfferService.Add(buyOffer, statistics);
//freeze users money equivalent to amount of shares he wants to buy left after searching through the market
currentUser.Value -= buyOffer.Amount * buyOffer.Price;
currentUser.Password = null;
_userService.EditUser(currentUser.Id, currentUser, statistics);
}
CalculatePriceChange(buyOffer.StockId, statistics);
}