public static decimal BuyOneGetOneDiscount(PizzaOrder order)
{
if (order.Pizzas.Count < 2)
{
return(0m);
}
return(order.Pizzas.Min(p => p.Price));
}
public decimal ComputePrice(PizzaOrder order)
{
if (order is null)
{
throw new ArgumentNullException("order");
}
if (order.Pizzas is null)
{
throw new ArgumentException("Invalid Pizza List", "order", null);
}
decimal nonDiscounted = order.Pizzas.Sum(p => p.Price);
decimal discountedValue = _discountPolicy(order);
return(nonDiscounted - discountedValue);
}
public static decimal FivePercentOffMorThanFiftyDollars(PizzaOrder order)
{
decimal nonDiscounted = order.Pizzas.Sum(p => p.Price);
return(nonDiscounted >= 50 ? nonDiscounted * 0.05m : 0M);
}
