public IActionResult UpdatedCart(int userId, LineItems changedLineItem)
{
var openCart = _repository.FindOpenCarts(userId);
bool cartDoesExist = openCart != null;
if (cartDoesExist)
{
var shoppingCartItems = _repository.GetLineItem(changedLineItem.InvoiceId);
var findCartItems = shoppingCartItems.ToList().Find(x => x.LineItemId == changedLineItem.LineItemId);
if (changedLineItem.Quantity == 0)
{
// if line item quantity is zero then delete the line item
var multiplyQuantity = findCartItems.Price * findCartItems.Quantity;
_repository.DeleteLineItem(changedLineItem.LineItemId);
openCart = _repository.UpdateTotalCost(multiplyQuantity, changedLineItem.InvoiceId);
}
else
{
// if the line item exists then modify it
var cartDif = findCartItems.Quantity - changedLineItem.Quantity;
var multiDiff = cartDif * findCartItems.Price;
var updatedLineItem = _repository.ChangeLineItemQty(changedLineItem.Quantity, changedLineItem.LineItemId);
openCart = _repository.UpdateTotalCost(multiDiff, changedLineItem.InvoiceId);
}
}
return(Ok(openCart));
}