public TradeOperation ProcessTrade(Trader seller, Trader buyer, Stock tradable)
{
Withdraw(seller, tradable);
Acquire(buyer, tradable);
UpdateEntity(buyer);
UpdateEntity(seller);
TradeOperation entity = TradeOperation.CreateBuilder()
.SetTime(DateTime.Now)
.SetBuyer(buyer)
.SetSeller(seller)
.SetTradableType(tradable.TradableType)
.SetTradableAmount(tradable.Quantity)
.SetTradeAmount(tradable.Quantity * tradable.TradableType.Price);
return(entity);
}
