private bool QualifiesForOffer(Product item)
{
if (item.Offer == null)
{
return false;
}
return _bag.Count(x => x.Sku == item.Sku && !x.IsBilled) >= item.Offer.Count;
}
private void ApplyOffer(Product product)
{
product.TotalPrice = product.Offer.Price;
var productsInOffering = _bag.Where(x => x.Sku == product.Sku && !x.IsBilled)
.Take(product.Offer.Count);
foreach (var p in productsInOffering)
{
p.IsBilled = true;
}
}
public void Scan(string sku)
{
var product = _prices.Single(x => x.Sku == sku);
var item = new Product
{
Sku = product.Sku,
Price = product.Price,
Offer = product.Offer
};
_bag.Add(item);
}