public decimal CalculateDiscount(Order order)
{
//1.Predykat
if (canDiscountStrategy.CanDiscount(order))
{
// 2. Wartosc rabatu
return(calculateDiscountStrategy.CalculateDiscount(order));
}
else
{
return(noDiscount);
}
}
/// <summary>
/// oblicza rabat dla danej strategii
/// </summary>
/// <param name="order"></param>
/// <returns></returns>
public decimal CalculateDiscount(Order order)
{
if (order == null)
{
throw new ArgumentNullException(nameof(order));
}
if (order.Total <= 0)
{
throw new ArgumentOutOfRangeException(nameof(order.Total));
}
if (canDiscountStrategy.CanDiscount(order))
{
Thread.Sleep(TimeSpan.FromMilliseconds(100));
return(calculateDiscountStrategy.CalculateDiscount(order));
}
else
{
return(0m);
}
}
