public OrderProcessingViewModel ProcessOrderBeforePayment(ShoppingCartViewModel cart, CheckoutInputModel checkout)
{
var response = new OrderProcessingViewModel();
// 1. Save checkout data as part of the customer record (shipping & payment).
// This is a bit simplistic as shipping address and payment details should be both on Customer
// (to set default options) and Order (to be part of the history).
var address = Address.Create(checkout.Address, "", checkout.City, "", checkout.Country);
var payment = CreditCard.Create(checkout.CardType, checkout.CardNumber, "", new ExpiryDate(checkout.Month, checkout.Year));
_requestService.SaveCheckoutInformation(cart.OrderRequest, address, payment);
// 2. Goods in store (precheck to give users a chance not to place an order that may take a while to
// be completed and served. Most sites just make you pay and place an order for missing items while
// giving you a chance to cancel the order at any time.
var stock = _requestService.CheckStockLevelForOrderedItems(cart.OrderRequest);
if (stock.Insufficient.Any())
{
response.Denied = true;
response.AddMessage("It seems that we don't have available all the items you ordered. What would you like to do? Buying a bit less or trying later?");
return response;
}
// 3. Payment history for the customer
// Probably not really an appropriate scenario for this simple store: if the online store accept
// payment cash-on-delivery, however, you might want to enable it only for customers with a
// positive payment history.
if (!_requestService.CheckCustomerPaymentHistory(cart.OrderRequest.Buyer.CustomerId))
{
response.Denied = true;
response.AddMessage("We've found something incorrect in your record that prevents our system from processing your order. Please, contact our customer care.");
return response;
}
// 4. Refill stock
var productsToOrder = new List<Product>();
productsToOrder.AddRange(stock.Low);
productsToOrder.AddRange(stock.Insufficient);
_requestService.RefillStoreForProduct(productsToOrder);
return response;
}
public ProcessOrderBeforePaymentCommand(ShoppingCartViewModel cart, CheckoutInputModel checkout)
{
ShoppingCart = cart;
CheckoutData = checkout;
}
public ActionResult Checkout(CheckoutInputModel checkout)
{
// Pre-payment steps
var cart = RetrieveCurrentShoppingCart();
var response = _service.ProcessOrderBeforePayment(cart, checkout);
if (!response.Denied)
{
return Redirect(Url.Content("~/fake_payment.aspx?"));
}
TempData["ibuy-stuff:denied"] = response;
return RedirectToAction("Denied");
}
public ActionResult Checkout(CheckoutInputModel checkout)
{
// Pre-payment steps
var cart = RetrieveCurrentShoppingCart();
var command = new ProcessOrderBeforePaymentCommand(cart, checkout);
var response = CommandProcessor.Send<ProcessOrderBeforePaymentCommand, OrderProcessingViewModel>(command);
if (!response.Denied)
{
return Redirect(Url.Content("~/fake_payment.aspx?"));
}
TempData["ibuy-stuff:denied"] = response;
return RedirectToAction("Denied");
}
