public void StartTrading()
{
Random random = new Random();
var seller = usersService.GetSeller(random.Next(1, userRepo.Count()));
var customer = usersService.GetCustomer(random.Next(1, userRepo.Count()), seller.Id);
if (seller == null || customer == null) //тут проблема что исключение обрабатывается в прокси, а сам прокси в таком случае кидает null, знаю что костыль
{
return;
}
var sellerPortfolioForTrade = seller.UsersShares.ToList()[random.Next(0, seller.UsersShares.Count())];
var amountSharesForTrade = random.Next(1, sellerPortfolioForTrade.Amount / 5);
var shareForTrade = sellerPortfolioForTrade.Share;
decimal CostOfTransaction = amountSharesForTrade * shareForTrade.Price;
usersService.ChangeUserBalance(seller.Id, CostOfTransaction);
usersService.ChangeUserBalance(customer.Id, CostOfTransaction * -1);
PortfolioEntity customerPortfolio;
if ((customerPortfolio = customer.UsersShares.Where(us => us.ShareId == shareForTrade.Id).FirstOrDefault()) == null)
{
PortfolioInfo customerPortfolioToAdd = new PortfolioInfo()
{
UserId = customer.Id,
ShareId = shareForTrade.Id,
Amount = amountSharesForTrade
};
portfolioService.AddNewUsersShares(customerPortfolioToAdd);
}
else
{
portfolioService.ChangeAmountOfShares(customerPortfolio, amountSharesForTrade);
}
portfolioService.ChangeAmountOfShares(sellerPortfolioForTrade, amountSharesForTrade * -1);
TransactionStoryInfo transactionOperation = new TransactionStoryInfo()
{
customerId = customer.Id,
sellerId = seller.Id,
shareId = shareForTrade.Id,
Share = shareForTrade,
AmountOfShares = amountSharesForTrade,
DateTime = DateTime.Now,
TransactionCost = CostOfTransaction
};
transaction.AddNewTransaction(transactionOperation);
}
public UserEntity GetSeller(int userId)
{
if (repo.Count() == 0)
{
throw new ArgumentException("Нет зарегестрированных пользователей");
}
UserEntity seller = repo.GetUserById(userId);
if (seller == null)
{
throw new ArgumentException($"Нет пользователя с ID {userId}");
}
else if (seller.UsersShares == null)
{
throw new ArgumentException($"{seller.SurName} {seller.Name} не имеет акций для продажи");
}
return(seller);
}