public override void CalculatePriceWithDiscount(CheckItem item)
{
if (item.DiscountApplied)
{
return;
}
var total = item.TotalPrice - item.TotalPrice * Percent;
item.SetTotalPrice(total);
}
public override void CalculatePriceWithDiscount(CheckItem item)
{
if (item.Code != Code)
{
throw new InvalidOperationException($"Can't apply volume discount for {Code} to {item.Code}");
}
if (item.Quantity < Quantity)
{
return;
}
var volumesCount = (int)Math.Floor(item.Quantity / (decimal)Quantity);
var withoutDiscount = item.Quantity % Quantity;
var total = volumesCount * Price + withoutDiscount * item.Price;
item.SetTotalPrice(total);
}
