public CheckoutDto CalculateTotals(Cart cart, Coupon coupon = null)
{
if (cart.ShippingAddress == null)
{
throw new MissingDataException("Cannot calculate total cost - missing Shipping method");
}
var itemCost = cart.Items.Sum(item => item.Price * item.Quantity);
var shippingCost = _shippingCalculator.CalculateShippingCost(cart);
var customerDiscount = 0.0;
if (cart.CustomerType == CustomerType.Premium)
{
customerDiscount = 10.0;
}
var customerDiscountPercent = (100.0 - customerDiscount) / 100.0;
var total = (itemCost + shippingCost) * customerDiscountPercent;
var shoppingCartDto = _mapper.Map <ShoppingCartDto>(cart);
var checkoutDto = new CheckoutDto(shoppingCartDto, shippingCost, customerDiscount, total);
if (coupon != null)
{
return(checkoutDto with
{
TotalAfterCoupon = _couponEngine.CalculateDiscount(checkoutDto, coupon)
});
}
else
{
return(checkoutDto);
}
}
public void Process(Order order)
{
if (order.IsShipped)
{
throw new InvalidOperationException("The order is already is processed...");
}
order.Shipment = new Shipment
{
Cost = _shippingCalculator.CalculateShippingCost(order),
ShippingDate = DateTime.Today.AddDays(1)
};
var totalCost = order.TotalPrice + order.Shipment.Cost;
Console.WriteLine($"Total price + shipping : {totalCost}");
}
public CheckoutDto CalculateTotals(Cart cart)
{
var itemCost = cart.Items.Sum(item => item.Price * item.Quantity);
var shippingCost = _shippingCalculator.CalculateShippingCost(cart);
var customerDiscount = 0.0;
if (cart.CustomerType == CustomerType.Premium)
{
customerDiscount = 10.0;
}
var customerDiscountPercent = (100.0 - customerDiscount) / 100.0;
var total = (itemCost + shippingCost) * customerDiscountPercent;
var shoppingCartDto = _mapper.Map <ShoppingCartDto>(cart);
return(new CheckoutDto(shoppingCartDto, shippingCost, customerDiscount, total));
}
public CheckoutDto CalculateTotals(Cart cart)
{
if (cart.ShippingAddress == null)
{
throw new MissingDataException("Cannot calculate total cost - missing Shipping method");
}
var itemCost = cart.Items.Sum(item => item.Price * item.Quantity);
var shippingCost = _shippingCalculator.CalculateShippingCost(cart);
var customerDiscount = GetCustomerDiscountPercent(cart, out var customerDiscountPercent);
var total = (itemCost + shippingCost) * customerDiscountPercent;
var shoppingCartDto = _mapper.Map <ShoppingCartDto>(cart);
return(new CheckoutDto(shoppingCartDto, shippingCost, customerDiscount, total));
}
