public float CalculateShipping(Order order)
{
if (order.TotalPrice < 30f)
return order.TotalPrice * 0.15f;
return 0;
}
public void Process(Order order)
{
if (order.IsShipped)
throw new InvalidOperationException("This order is already processed.");
order.Shipment = new Shipment
{
Cost = _shippingCalculator.CalculateShipping(order),
ShippingDate = DateTime.Today.AddDays(1)
};
}
static void Main(string[] args)
{
var orderProcessor = new OrderProcessor(new ShippingCalculator());
var order = new Order {DatePlaced = DateTime.Now, TotalPrice = 100f};
orderProcessor.Process(order);
}
