public decimal Calculate(Customer customer, Product product)
{
if (customer == null)
throw new ArgumentNullException("customer");
if (product == null)
throw new ArgumentNullException("product");
CountryTax customerCountryTax = this.countryTax.FindOne(new CountryTypeOfTaxSpec(customer.Country.Id, TaxType.Customer));
CountryTax businessCountryTax = this.countryTax.FindOne(new CountryTypeOfTaxSpec(settings.BusinessCountry.Id, TaxType.Business));
return (product.Cost * customerCountryTax.Percentage)
+ (product.Cost * businessCountryTax.Percentage);
}
public static CartProduct Create(Cart cart, Product product, int quantity, ITaxService taxService)
{
if(cart == null)
throw new ArgumentNullException("cart");
if (product == null)
throw new ArgumentNullException("product");
return new CartProduct()
{
Cart = cart,
Product = product,
Quantity = quantity,
Active = true,
Created = DateTime.Now,
Tax = taxService.Calculate(cart.Customer, product)
};
}
private void validateProduct(Guid productId, Product product)
{
if (product == null)
throw new Exception(String.Format("Product was not found with this Id: {0}", productId));
}