public decimal CalculateCustomerDiscount(Customer customer)
{
if (customer.DateOfFirstPurchase.HasValue)
{
if (customer.DateOfFirstPurchase.Value.AddYears(_yearsAsCustomer) <= DateTime.Today)
{
var birthdayRule = new BirthdayDiscountRule();
return(_discount + birthdayRule.CalculateCustomerDiscount(customer));
}
}
return(0);
}
public decimal CalculateCustomerDiscount(Customer customer)
{
if (customer.DateOfFirstPurchase.HasValue)
{
if (customer.DateOfFirstPurchase.Value.AddYears(_yearsAsCustomer) <= DateTime.Today)
{
var birthdayRule = new BirthdayDiscountRule();
return _discount + birthdayRule.CalculateCustomerDiscount(customer);
}
}
return 0;
}
