public bool Trade()
{
if (User == null || User.Id <= 0)
{
return(false);
}
var totalCost = (LatestPrice * TradeSharesCount);
var sh = new ShareHelper();
var db = sh._db;
var datauser = db.Users.Where(du => du.Id == User.Id).FirstOrDefault();
var dataportfolio = db.Portfolios.Include(p => p.Shares).Where(p => p.Id == User.Portfolio.Id).FirstOrDefault();
if (State == "Buy")
{
if (LatestVolume < TradeSharesCount || totalCost > User.AccountBalance)
{
return(false);
}
}
if (State == "Sell")
{
var sl = dataportfolio.Shares.Where(s => s.Symbol == Symbol).ToList();
var cnt = 0;
foreach (var item in sl)
{
cnt += item.NumberOfShares;
}
if (LatestVolume < TradeSharesCount || TradeSharesCount > cnt)
{
return(false);
}
totalCost = -totalCost;
TradeSharesCount = -TradeSharesCount;
}
var share = new Share()
{
Symbol = Symbol.ToUpper(),
NumberOfShares = TradeSharesCount,
Price = LatestPrice,
State = State,
TimeStamp = DateTime.Now
};
sh.SetShare(share);
var datashare = db.Shares.Where(s => s.Symbol == Symbol).LastOrDefault();
dataportfolio.Shares.Add(datashare);
datauser.AccountBalance -= totalCost;
db.SaveChanges();
return(true);
}