public static async Task Main(string[] args)
{
var printer = new ConsoleReceiptPrinter();
var calculator = new ReceiptCalculator(new InMemoryItemsRepository(), new TaxCalculator(0.10m, 0.05m));
foreach (var cart in CreateSampleShoppingCarts())
{
var receipt = await calculator.CalculateAsync(cart);
await printer.PrintAsync(receipt);
}
}
public void Checkout()
{
try
{
IRepository <Product> productRepository = new FileRepository <Product>(Path.Combine("..\\..\\Files", "product.json"));
IRepository <OnSalePromotion> onSalePromotionRepository =
new FileRepository <OnSalePromotion>(Path.Combine("..\\..\\Files", "onsale.json"));
IRepository <GroupSalePromotion> groupSalePromotionRepository =
new FileRepository <GroupSalePromotion>(Path.Combine("..\\..\\Files", "groupsale.json"));
IRepository <AdditionalSalePromotion> additionalSalePromotionRepository =
new FileRepository <AdditionalSalePromotion>(Path.Combine("..\\..\\Files", "additionalsale.json"));
// Simple promotion data validation
IPromotionValidator promotionValidator;
promotionValidator = new OnSalePromotionValidator(onSalePromotionRepository.GetAll());
promotionValidator.Validate();
promotionValidator = new GroupSalePromotionValidator(groupSalePromotionRepository.GetAll());
promotionValidator.Validate();
promotionValidator = new AdditionalSalePromotionValidator(additionalSalePromotionRepository.GetAll());
promotionValidator.Validate();
// Read basket data
List <Product> productsInBasket = JsonConvert.DeserializeObject <List <Product> >(File.ReadAllText(Path.Combine("..\\..\\Files", "basket.json")));
// Service Layer Facade
ISaleService saleService = new SaleServiceImpl(productRepository, onSalePromotionRepository, groupSalePromotionRepository, additionalSalePromotionRepository);
foreach (var item in productsInBasket)
{
saleService.AddProduct(item.Id);
}
Receipt receipt = saleService.GetReceipt();
ReceiptPrinter receiptPrinter = new ConsoleReceiptPrinter(receipt);
receiptPrinter.Print();
}
catch (ProductException pdex)
{
Console.WriteLine("=== " + pdex.Message + " ===");
}
catch (PromotionException pmex)
{
Console.WriteLine("=== " + pmex.Message + " ===");
return;
}
catch (Exception ex)
{
Console.WriteLine("=== Woops, there's something wrong..." + ex.ToString() + " ===");
}
}
