public decimal BuyOneGetOneFree(PizzaOrder order)
{
var pizzas = order.Pizzas;
if (pizzas.Count() > 2)
{
return(pizzas.Min(p => p.price));
}
else
{
return(0m);
}
}
public decimal ComputePrice(PizzaOrder order)
{
decimal total = order.Pizzas.Sum(p => p.price);
decimal[] discounts = new[] {
_discountPoliciesMethods.BuyOneGetOneFree(order),
_discountPoliciesMethods.FivePercentOffMoreThanFiftyDollars(order),
_discountPoliciesMethods.FiveDollarsOffStuffedCrust(order),
};
decimal bestDiscount = discounts.Max(discount => discount);
total = total - bestDiscount;
return(total);
}
public decimal ComputePrice(PizzaOrder order)
{
decimal total = order.Pizzas.Sum(p => p.price);
var BuyOneGetOneFree = order.CalculateDiscount(o => o.Count() >= 2 ? o.Min(s => s.price) : 0m);
var FivePercentOffMoreThanFiftyDollars = order.CalculateDiscount(o =>
{
decimal v = o.Sum(s => s.price);
return(v >= 50 ? v * 0.05m : 0m);
});
var FiveDollarsOffStuffedCrust = order.CalculateDiscount(o => o.Sum(p => p.crust == Crust.Stuffed ? 5m : 0m));
Console.WriteLine($"Buy One Get One Discount: {BuyOneGetOneFree.ToString()}");
Console.WriteLine($"Five Percent Off More Than Fifty Dollars Discount: {FivePercentOffMoreThanFiftyDollars.ToString()}");
Console.WriteLine($"Five Dollars Off Stuffed Crust: {FiveDollarsOffStuffedCrust.ToString()}");
total = total - new[] { BuyOneGetOneFree, FivePercentOffMoreThanFiftyDollars, FiveDollarsOffStuffedCrust }.Max(discount => discount);;
return(total);
}
static void Main(string[] args)
{
PizzaOrder order = new PizzaOrder();
order.Pizzas = new List <Pizza>
{
new Pizza {
crust = Crust.Thin, size = Size.Small, price = 7.00m
},
new Pizza {
crust = Crust.Stuffed, size = Size.Large, price = 15.00m
},
new Pizza {
crust = Crust.Regular, size = Size.Medium, price = 10.00m
}
};
PizzaOrderingSystemMethod m = new PizzaOrderingSystemMethod();
var total = m.ComputePrice(order);
Console.WriteLine(total);
Console.ReadKey();
}
public decimal FiveDollarsOffStuffedCrust(PizzaOrder order)
{
return(order.Pizzas.Sum(p => p.crust == Crust.Stuffed ? 5m : 0m));
}
public decimal FivePercentOffMoreThanFiftyDollars(PizzaOrder order)
{
decimal v = order.Pizzas.Sum(s => s.price);
return(v >= 50 ? v * 0.05m : 0m);
}
