Options de produits cartClass->addProduct

public function setCart($post)
    {
        // load db
        $db = Factory::getDbo();
        // load hikashop
        if (!@include_once(rtrim(JPATH_ADMINISTRATOR, DS) . DS . 'components' . DS . 'com_hikashop' . DS . 'helpers' . DS . 'helper.php')) {
            return false;
        }
        $cartClass = hikashop_get('class.cart');

        // edit data unique
        if (!empty($post['action']) and $post['action'] == 'set_data') {
            $query = $db->getQuery(true);
            $fields = array(
                $db->quoteName($post['name']) . ' = ' . $db->quote($post['value'])
            );
            $conditions = array(
                $db->quoteName('cart_id') . ' = ' . $db->quote($post['id'])
            );
            $query->update($db->quoteName('#__hikashop_cart'))->set($fields)->where($conditions);
            $db->setQuery($query);
            $db->execute();
        }
        // création
        elseif (empty($post['cart_id'])) {
            // save cart
            $cart = new stdClass();
            $cart->cart_billing_address_id = $post['order_billing_address_id'];
            $cart->cart_shipping_address_ids = $post['order_shipping_address_id'];
            $cartClass->save($cart);

            // changement manuel de user_id (automatiquement user connecté)
            self::setCart(array('action' => 'set_data', 'name' => 'user_id', 'value' => $post['order_user_id'], 'id' => $cart->cart_id));

            // add products
            foreach ($post['order_product'] as $product_id => $qty) {
                $products = array(array('id' => $product_id, 'qty' => $qty));
                $cartClass->addProduct($cart->cart_id, $products);
            }

            // add free products
            foreach ($post['free_order_product'] as $product_id => $qty) {
                $products = array(array('id' => $product_id, 'qty' => $qty));
                $cartClass->addProduct($cart->cart_id, $products);
            }

            // méthodes de livraison
            $cartClass->updateShipping($cart->cart_id, self::setCartShippingMethod($cart->cart_id));

            // méthode de paiement
            $cartClass->updatePayment($cart->cart_id, array(1));

            return $cart->cart_id;
        }
        // modification
        else {
            foreach ($post['order_product'] as $product_id => $qty) {
                $cartClass->update($product_id, $qty);
            }

            return $post['cart_id'];
        }
    }

 // add free products
            foreach ($post['free_order_product'] as $product_id => $qty) {
                $products = array(array('id' => $product_id, 'qty' => $qty));
                $cartClass->addProduct($cart->cart_id, $products, $options);
            }