public Receipt Checkout()
{
log.Info("Checkout Started");
IDictionary <int, IProduct> products = _storeRepository.GetProducts();
ISalePrice salePrice = new SalePrice(_storeRepository);
IPromotionalPrice promotionalPrice = new PromotionalPrice(_storeRepository);
Receipt receipt = new Receipt();
foreach (KeyValuePair <int, int> cartItem in CartItems)
{
log.Info($"Processing product: #{_cartItemDescription[cartItem.Key].PLU}: {_cartItemDescription[cartItem.Key].Description}");
if (!products.ContainsKey(cartItem.Key))
{
log.Warn($"Product not found: #{_cartItemDescription[cartItem.Key].PLU}: {_cartItemDescription[cartItem.Key].Description}");
receipt.IgnoredItems.Add(_cartItemDescription[cartItem.Key]);
continue;
}
IProduct currentProduct = products[cartItem.Key];
decimal bestPrice = cartItem.Value * products[cartItem.Key].Price;
ReceiptLineItem receiptLineItem = new ReceiptLineItem(currentProduct.PLU, currentProduct.Name, cartItem.Value, currentProduct.Price);
receipt.AddLineItem(receiptLineItem);
decimal price = salePrice.Apply(cartItem, products[cartItem.Key].Price);
if (price < bestPrice)
{
bestPrice = price;
receiptLineItem.SetDiscountLine($"Sale @ {salePrice.GetSalePrice(currentProduct.PLU)} ea ", bestPrice);
}
price = promotionalPrice.Apply(cartItem, products[cartItem.Key].Price);
if (price < bestPrice)
{
bestPrice = price;
receiptLineItem.SetDiscountLine($"Promotion {promotionalPrice.GetAppliedPromotion(currentProduct.PLU)}", bestPrice);
}
receipt.GrandTotal += bestPrice;
}
log.Info("Checkout Completed");
return(receipt);
}
public void AddLineItem(ReceiptLineItem receiptLineItem)
{
LineItems.Add(receiptLineItem);
}