* module: ets_seo
     */
    public function getBrandName()
    {
        if ($this->product->id_manufacturer) {
            $manuf = new Manufacturer(
                $this->product->id_manufacturer,
                $this->context->language->id
            );
        }

        if (isset($manuf) && $manuf->id) {
            return $manuf->name;
        }

        return '';
    }

    /*
     * module: ets_seo
     */
    public function init(): void
    {
        $this->id_product = (int) Tools::getValue('id_product');
        $product = new Product($this->id_product);

        if (!Validate::isLoadedObject($product)) {
            Tools::redirect($this->context->link->getPageLink('404'));
            return;
        }

        parent::init();
    }

    /*
     * Combined overrides:
     * - alcaqtydiscountbuttons 1.2.0
     * - ststickybuybutton 1.0.3
     *
     * Keep the standard response fields and append each module's own fields.
     */
    public function displayAjaxRefresh()
    {
        $alcaEnabled = (bool) Module::isEnabled('alcaqtydiscountbuttons');
        $stickyEnabled = (bool) Module::isEnabled('ststickybuybutton');

        if (!$alcaEnabled && !$stickyEnabled) {
            return parent::displayAjaxRefresh();
        }

        $product = $this->getTemplateVarProduct();
        $minimalProductQuantity = $this->getProductMinimalQuantity($product);

        $productDiscounts = $alcaEnabled
            ? Module::getInstanceByName('alcaqtydiscountbuttons')->renderFromOverride()
            : $this->render('catalog/_partials/product-discounts');

        $response = [
            'product_prices' => $this->render('catalog/_partials/product-prices'),
            'product_cover_thumbnails' => $this->render('catalog/_partials/product-cover-thumbnails'),
            'product_customization' => $this->render(
                'catalog/_partials/product-customization',
                [
                    'customizations' => $product['customizations'],
                ]
            ),
            'product_details' => $this->render('catalog/_partials/product-details'),
            'product_variants' => $this->render('catalog/_partials/product-variants'),
            'product_discounts' => $productDiscounts,
            'product_add_to_cart' => $this->render('catalog/_partials/product-add-to-cart'),
            'product_additional_info' => $this->render('catalog/_partials/product-additional-info'),
            'product_images_modal' => $this->render('catalog/_partials/product-images-modal'),
            'product_flags' => $this->render('catalog/_partials/product-flags'),
            'product_url' => $this->context->link->getProductLink(
                $product['id_product'],
                null,
                null,
                null,
                $this->context->language->id,
                null,
                $product['id_product_attribute'],
                false,
                false,
                true,
                (version_compare(_PS_VERSION_, '8.0.0', '>=')
                    ? $this->isPreview()
                    : ('1' === Tools::getValue('preview')))
                    ? ['preview' => '1']
                    : []
            ),
            'product_minimal_quantity' => $minimalProductQuantity,
            'product_has_combinations' => !empty($this->combinations),
            'id_product_attribute' => $product['id_product_attribute'],
            'id_customization' => $product['id_customization'],
            'product_title' => $this->getTemplateVarPage()['meta']['title'],
            'is_quick_view' => $this->isQuickView(),
        ];

        if ($stickyEnabled) {
            $response['ststickybuybutton'] = [
                'block' => $this->render(
                    'module:ststickybuybutton/views/templates/hook/block.tpl'
                ),
            ];
        }

        if (ob_get_level() > 0) {
            ob_end_clean();
        }

        header('Content-Type: application/json');

        return $this->ajaxRender(json_encode($response));
    }
}