public void Scan(string barcode, float quantity = 1)
{
LineItem item = Cached.AvailableItems.GetLineItemByBarcode(barcode);
Coupon coupon = Cached.AvailableCoupons.GetCouponByBarcode(barcode);
if (item == null)
{
if (coupon == null)
{
throw new Exception("Product not available for sale");
}
}
try
{
if (item != null)
{
item.Quantity = quantity;
scannedBill.AddLineItem(item);
}
else if (coupon != null)
{
scannedBill.Coupon = coupon;
}
}
catch (Exception ex)
{
// Log Error
throw new Exception("Product not added. Try again.");
}
}