private static bool IsQualifyForMultiBuyOffer(OrderLine orderLine)
{
return(orderLine.Product.IsMultiBuyOfferAvailable &&
orderLine.Quantity >= orderLine.Product.MultiBuyOffer.Threshold);
}
private static double CalculateOverOfferPrice(OrderLine orderLine)
{
var quantity = orderLine.Quantity % orderLine.Product.MultiBuyOffer.Threshold;
return(orderLine.Product.UnitPrice * quantity);
}
public void AddOrderLine(OrderLine orderLine)
{
OrderLines.Add(orderLine);
}