Exemple #1
0
        //supply the actual class that will handle the payment and courier
        // example calls
        // Create(new PaymentHandler1(), new CourierHandler1())
        // Create(new PaymentHandler2(), new CourierHandler2())
        // the right class can be chossen from the caller based on config string or defined web provider class

        public bool Create(IPaymentHandler paymentHandler, ICourierHandler courierHandler)
        {
            if (paymentHandler == null || courierHandler == null)
            {
                return(false);
            }

            // check if the customer has products in the cart
            CartModel          cartModel = new CartModel();
            IEnumerable <Cart> carts     = cartModel.Get(base.Customer.Name);

            if (carts == null && carts.Count() <= 0)
            {
                return(false);
            }

            // calculate the amount have to pay
            double dAmount = carts.Sum(c => c.Quantity * c.UnitPrice);

            if (dAmount <= 0)
            {
                return(false);
            }

            // check for discount
            DiscountModel discountModel = new DiscountModel();
            Discount      discount      = discountModel.Get(base.Customer.Name);

            if (discount != null && discount.Percentage != 0)
            {
                dAmount -= Math.Round((dAmount * discount.Percentage) / 100, 2);
                System.Diagnostics.Debug.Assert(dAmount > 0);
            }

            //try to make a payment
            if (!paymentHandler.MakePayment(base.Customer.Name, dAmount))
            {
                return(false);
            }

            //make the cart into an order
            OrderModel orderModel = new OrderModel();
            string     sID        = orderModel.Add(base.Customer.Name, base.Customer.Address, dAmount);

            if (sID == null)
            {
                return(false);
            }

            OrderLinesModel orderLinesModel = new OrderLinesModel();

            foreach (Cart cart in carts)
            {
                if (!orderLinesModel.Add(sID, cart.ProductCode, cart.Quantity, cart.UnitPrice))
                {
                    orderModel.Delete(sID);
                    orderLinesModel.Delete(sID);
                    return(false);
                }
            }

            //clear the cart for this customer
            cartModel.Delete(base.Customer.Name);

            // get the order and the order items
            Order order = orderModel.Get(sID);
            IEnumerable <OrderLine> orderLines = orderLinesModel.GetAll(sID);

            // send email confirmation to the customer
            EmailHandler emailhandler = new EmailHandler();

            emailhandler.SendOrderConfirmation(base.Customer, order, orderLines);

            // Notify the Courier
            courierHandler.Deliver(order, orderLines);

            return(true);
        }
 public CourierController(ICourierHandler courierHandler)
 {
     this.courierHandler = courierHandler;
 }