public static CreditCard Create(Customer customer, string name, long cardNum, DateTime expiry)
{
if (customer == null)
throw new Exception("Customer object can't be null");
if (string.IsNullOrEmpty(name))
throw new Exception("Name can't be empty");
if (cardNum < 6)
throw new Exception("Card number length is incorrect");
if (DateTime.Now > expiry)
throw new Exception("Credit card expiry can't be in the past");
CreditCard creditCard = new CreditCard
{
Customer = customer,
NameOnCard = name,
CardNumber = cardNum,
Expiry = expiry,
Active = true,
Created = DateTime.Today
};
if(customer.CreditCards.Contains(creditCard))
throw new Exception("Can't add same card to the collection");
return creditCard;
}
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 Purchase Create(Customer customer, ReadOnlyCollection<CartProduct> cartProducts)
{
Purchase purchase = new Purchase()
{
Id = Guid.NewGuid(),
Created = DateTime.Today,
Customer = customer,
TotalCost = customer.Cart.TotalCost,
TotalTax = customer.Cart.TotalTax
};
List<PurchasedProduct> purchasedProducts = new List<PurchasedProduct>();
foreach (CartProduct cartProduct in cartProducts)
{
purchasedProducts.Add(PurchasedProduct.Create(purchase, cartProduct));
}
purchase.purchasedProducts = purchasedProducts;
return purchase;
}
public static Customer Create(string firstname, string lastname, string email, Country country)
{
if (string.IsNullOrEmpty(firstname))
throw new ArgumentNullException("firstname");
if (string.IsNullOrEmpty(lastname))
throw new ArgumentNullException("lastname");
if (string.IsNullOrEmpty(email))
throw new ArgumentNullException("email");
if (country == null)
throw new ArgumentNullException("country");
Customer customer = new Customer()
{
Id = Guid.NewGuid(),
FirstName = firstname,
LastName = lastname,
Email = email,
Active = true,
Created = DateTime.Today,
Country = country
};
customer.Cart = Cart.Create(customer);
DomainEvents.Raise<CustomerCreated>(new CustomerCreated() { Customer = customer });
return customer;
}
private void validateCustomer(Guid customerId, Customer customer)
{
if (customer == null)
throw new Exception(String.Format("Customer was not found with this Id: {0}", customerId));
}
public void Subscribe(Customer customer)
{
//call a third party web service here...
}