/**
     *
     * Update Metas products
     *
     */
    private function addMetaProducts()
    {
        $product_list = Product::getProducts($this->context->language->id, 1, 5000, 'name', 'ASC');
        $langs = Language::getLanguages();

        foreach ($product_list as $product) {
            $product = new Product((int)$product['id_product']);

            // dump($product); die;

            $meta_title = $meta_desc = $meta_desc_short = $meta_keyword = array();

            foreach ($langs as $lang) {
                $meta_title_value = Tools::getValue('meta_product_title_'.$lang['id_lang']);
                $meta_desc_value = Tools::getValue('meta_product_desc_'.$lang['id_lang']);
                $meta_keyword_value = Tools::getValue('meta_product_keywords_'.$lang['id_lang']);

                $category = new Category((int)$product->id_category_default);

                $meta_title[$lang['id_lang']] = str_replace('{category_name}', $category->name[$lang['id_lang']], $meta_title_value);
                $meta_keyword[$lang['id_lang']] = str_replace('{category_name}', $category->name[$lang['id_lang']], $meta_keyword_value);

                $meta_title[$lang['id_lang']] = str_replace('{product_price}', $product->price, $meta_title[$lang['id_lang']]);

                $meta_title[$lang['id_lang']] = str_replace('{product_name}', $product->name[$lang['id_lang']], $meta_title[$lang['id_lang']]);
                $meta_keyword[$lang['id_lang']] = str_replace('{product_name}', $product->name[$lang['id_lang']], $meta_keyword[$lang['id_lang']]);

                // Partie meta_description du produit
                $meta_desc[$lang['id_lang']] = str_replace('{product_desc}', $product->description[$lang['id_lang']], $meta_desc_value);
                $meta_desc_short[$lang['id_lang']] = str_replace('{product_desc_short}', $product->description_short[$lang['id_lang']], $meta_desc_value);

                // On assigne soit la description, soit la description courte
                if ($meta_desc_value == '{product_desc_short}') {
                    $product->meta_description[$lang['id_lang']] = strip_tags($meta_desc_short[$lang['id_lang']]);
                } elseif ($meta_desc_value == '{product_desc}') {
                    $product->meta_description[$lang['id_lang']] = strip_tags($meta_desc[$lang['id_lang']]);
                }

                $meta_keyword[$lang['id_lang']] = str_replace('{product_manufacturer}', $product->manufacturer_name[$lang['id_lang']], $meta_keyword[$lang['id_lang']]);

                $product->meta_title[$lang['id_lang']] = $meta_title[$lang['id_lang']] ;
                $product->meta_keywords[$lang['id_lang']]  = $meta_keyword[$lang['id_lang']];
            }
            $product->save();
        }
    }
}