public async Task <ActionResult> Order(BrokerOrderDto order)
{
try
{
var user = Convert.ToInt32(_context.HttpContext.User.Identity.Name);
var clientList = await _bankService.GetBankClients(user);
var client = clientList.First();
var clientAccountList = await _bankService.GetBankAccount(client.Id);
var clientAccount = clientAccountList.First();
await _brokerService.ProcessOrder(clientAccount, order);
return(Ok("Order accepted successfully"));
}
catch (Exception e)
{
_logger.LogError(e, "Unable to buy stock");
return(StatusCode(StatusCodes.Status500InternalServerError,
"An error occurred and the server could not buy the stock. If the problem persists, contact an administrator"));
}
}
public async Task ProcessOrder(BankAccountEntity bankAccount, BrokerOrderDto order)
{
try
{
var stockList = (await _stockRepository.Select(a => a.Symbol == order.Symbol)).ToList();
if (stockList.Count() > 1)
{
throw new ArgumentException($"Symbol {order.Symbol.ToUpper()} is not unique");
}
var stock = stockList.Single();
var stockValue = stock.CurrentPrice * order.Amount;
bankAccount.BalanceInBrl -= stockValue;
if (bankAccount.BalanceInBrl < 0)
{
throw new ArgumentException("Insufficient balance in account");
}
await _bankAccountRepository.Update(bankAccount);
var accountStock = (await _bankAccountStockRepository.Select(a =>
a.BankAccountId == bankAccount.Id && a.Symbol == order.Symbol)).SingleOrDefault();
if (accountStock != null)
{
accountStock.Amount += order.Amount;
if (accountStock.Amount < 0)
{
throw new ArgumentException("Insufficient stocks to sell");
}
await _bankAccountStockRepository.Update(accountStock);
}
else
{
if (order.Amount < 0)
{
throw new ArgumentException("Insufficient stocks to sell");
}
var newAccountStock = new BankAccountStockEntity()
{
BankAccountId = bankAccount.Id,
Symbol = stock.Symbol,
Amount = order.Amount
};
await _bankAccountStockRepository.Insert(newAccountStock);
}
_bankAccountStockRepository.Save();
_bankAccountRepository.Save();
}
catch (Exception e)
{
_logger.LogError(e, "Service could not complete order");
throw;
}
}
