public void addProduct(ItemToPurchase itemParam)
{
foreach (ItemToPurchase item in itemsToPurchase)
{
if (item.Product == itemParam.Product)
{
item.Quantity += itemParam.Quantity;
paymentAmount += item.Quantity * item.Product.price;
Console.WriteLine("addProduct " + itemParam.Quantity);
return;
}
}
itemsToPurchase.Add(itemParam);
paymentAmount += itemParam.Quantity * itemParam.Product.price;
Console.WriteLine("addProduct " + itemParam.Quantity);
}
public void removeProduct(ItemToPurchase itemParam)
{
foreach (ItemToPurchase item in itemsToPurchase)
{
if (item.Product == itemParam.Product)
{
if (item.Quantity > itemParam.Quantity)
{
item.Quantity -= itemParam.Quantity;
paymentAmount -= itemParam.Quantity * item.Product.price;
Console.WriteLine("removeProduct " + item.Quantity);
}
else
{
paymentAmount -= item.Quantity * item.Product.price;
itemsToPurchase.Remove(item);
Console.WriteLine("removeProduct");
}
}
}
}