public decimal ComputePrice(PizzaOrder order) { decimal nonDiscounted = order.Pizzas.Sum(p => p.Price); decimal discountedValue = _discountPolicy(order); return(nonDiscounted - discountedValue); }
public static decimal BuyOneGetOneFree(PizzaOrder order) { var pizzas = order.Pizzas; if (pizzas.Count < 2) { return(0m); } return(pizzas.Min(p => p.Price)); }
public static decimal FiveDollarsOffStuffedCrust(PizzaOrder order) { return(order.Pizzas.Sum(p => p.Crust == Crust.Stuffed ? 5m : 0m)); }
public static decimal FivePercentOffMoreThanFiftyDollars(PizzaOrder order) { decimal nonDiscounted = order.Pizzas.Sum(p => p.Price); return(nonDiscounted >= 50 ? nonDiscounted * 0.05m : 0M); }