public SaleDiscount SaleDiscount(Burger burger)
{
var saleDiscount = new SaleDiscount()
{
SaleDescription = DESCRIPTION
};
if (burger == null)
{
throw new ArgumentNullException("burguer");
}
var hasBurgerQtyMultipleOfThree = burger.BurgerIngredients
.Any(has => has.Ingredient.IngredientType == IngredientType.Hamburger && has.Qty % 3 == 0);
if (hasBurgerQtyMultipleOfThree)
{
var hamburgerIngredient = burger.BurgerIngredients.FirstOrDefault(has => has.Ingredient.IngredientType == IngredientType.Hamburger);
var hamburgerQty = hamburgerIngredient?.Qty;
var saleQty = hamburgerQty / DISCOUNT;
var qtyDiscount = hamburgerQty - saleQty;
saleDiscount.Discount = (qtyDiscount.HasValue ? qtyDiscount.Value : decimal.Zero) * hamburgerIngredient.Ingredient.Price;
}
return(saleDiscount);
}
public SaleDiscount SaleDiscount(Burger burger)
{
var saleDiscount = new SaleDiscount()
{
SaleDescription = DESCRIPTION
};
if (burger == null)
{
throw new ArgumentNullException("burguer");
}
var hasLettuce = burger.BurgerIngredients.Any(has => has.Ingredient.IngredientType == IngredientType.Lettuce);
var hasNotBacon = !burger.BurgerIngredients.Any(has => has.Ingredient.IngredientType == IngredientType.Bacon);
if (hasLettuce && hasNotBacon)
{
saleDiscount.Discount = burger.Price() * DISCOUNT;
}
return(saleDiscount);
}