public async Task <ActionResult <Sale> > Sell([FromBody] SellRequest sellRequest)
{
var account = await _accountQuery.Evaluate(sellRequest.AccountNumber);
if (account == null)
{
return(NotFound("Account does not exist"));
}
var currentPrice = await _currentPriceQuery.Evaluate(sellRequest.ProductCode);
if (currentPrice == DataAccess.CurrentPriceQuery.ErrorConditions.ProductDoesNotExist)
{
return(NotFound("Product does not exist"));
}
if (currentPrice == DataAccess.CurrentPriceQuery.ErrorConditions.PriceDoesNotExist)
{
return(BadRequest("No valid price"));
}
if (currentPrice < sellRequest.MinUnitPrice)
{
return(new Sale()
{
UnitPrice = currentPrice,
Message = $"The current price of {currentPrice} is lower than the minimum you specified of {sellRequest.MinUnitPrice}.",
Success = false,
ProductCode = sellRequest.ProductCode,
});
}
var totalIncome = currentPrice * sellRequest.Quantity;
var sharesCurrentlyHeld = account.Portfolio.FirstOrDefault(investment => investment.ProductCode == sellRequest.ProductCode)?.Quantity ?? 0;
if (sellRequest.Quantity > sharesCurrentlyHeld)
{
return(new Sale()
{
UnitPrice = currentPrice,
Message = $"You have requested to sell {sellRequest.Quantity} but you only have {sharesCurrentlyHeld}.",
Success = false,
ProductCode = sellRequest.ProductCode,
});
}
var transaction = new Transaction()
{
AccountNumber = account.AccountNumber,
Quantity = -sellRequest.Quantity,
Time = DateTime.Now,
UnitPrice = currentPrice,
TotalValue = totalIncome,
ProductCode = sellRequest.ProductCode,
ID = Guid.NewGuid()
};
await _storeTransactionAction.Execute(transaction);
return(new Sale()
{
Message = "Success",
Quantity = sellRequest.Quantity,
ProductCode = sellRequest.ProductCode,
Success = true,
TotalValue = totalIncome,
UnitPrice = currentPrice,
TransactionID = transaction.ID
});
}
public async Task <ActionResult <Purchase> > Buy([FromBody] BuyRequest buyRequest)
{
var account = await _accountQuery.Evaluate(buyRequest.AccountNumber);
if (account == null)
{
return(NotFound("Account does not exist"));
}
var currentPrice = await _currentPriceQuery.Evaluate(buyRequest.ProductCode);
if (currentPrice == DataAccess.CurrentPriceQuery.ErrorConditions.ProductDoesNotExist)
{
return(NotFound("Product does not exist"));
}
if (currentPrice == DataAccess.CurrentPriceQuery.ErrorConditions.PriceDoesNotExist)
{
return(BadRequest("No valid price"));
}
if (currentPrice > buyRequest.MaxUnitPrice)
{
return(new Purchase()
{
ProductCode = buyRequest.ProductCode,
Message = $"The current price of {currentPrice} is higher then the maximum you specified of {buyRequest.MaxUnitPrice}.",
Success = false,
UnitPrice = currentPrice,
});
}
var availableCash = account.OpeningCash + account.TotalFromTransactions;
var totalCost = currentPrice * buyRequest.Quantity;
if (totalCost > availableCash)
{
return(new Purchase()
{
ProductCode = buyRequest.ProductCode,
Message = $"The trade will cost {totalCost} but you only have {availableCash}.",
Success = false,
UnitPrice = currentPrice,
});
}
var transaction = new Transaction()
{
AccountNumber = account.AccountNumber,
Quantity = buyRequest.Quantity,
Time = DateTime.Now,
UnitPrice = currentPrice,
TotalValue = -totalCost,
ProductCode = buyRequest.ProductCode,
ID = Guid.NewGuid()
};
await _storeTransactionAction.Execute(transaction);
return(new Purchase()
{
Message = "Success",
Quantity = buyRequest.Quantity,
ProductCode = buyRequest.ProductCode,
Success = true,
TotalValue = totalCost,
UnitPrice = currentPrice,
TransactionID = transaction.ID
});
}
