public int ApplyDiscount(ref IList <Item> itemsLeft)
{
var itemDiscounted = itemsLeft.Where(item => Skus.Contains(item.Sku)).OrderByDescending(item => item.Price).Take(MatchingQuantity).ToList();
foreach (var item in itemDiscounted)
{
itemsLeft.Remove(item);
}
return(itemDiscounted.Sum(item => item.Price) - ForfaitPrice);
}
public bool CanApplyTo(IList <Item> itemsLeft)
{
return(itemsLeft.Count(item => Skus.Contains(item.Sku)) >= MatchingQuantity);
}
public bool AppliesTo(char x)
{
return(Skus.Contains(x));
}