כפתור ״קנייה ישירה באתר״: קטע הקוד שממלא את העגלה בכל הסט

/**
 * Lux AI widget: support ?add-to-cart=ID1,ID2,ID3 (add several products at once).
 * Runs before WooCommerce core handles add-to-cart (default priority 20).
 */
add_action( 'wp_loaded', function () {
    if ( empty( $_REQUEST['add-to-cart'] ) || ! is_string( $_REQUEST['add-to-cart'] ) ) {
        return;
    }
    if ( strpos( $_REQUEST['add-to-cart'], ',' ) === false ) {
        return; // single id — let WooCommerce core handle it
    }
    if ( ! function_exists( 'WC' ) || is_null( WC()->cart ) ) {
        return;
    }
    $ids = array_filter( array_map( 'absint', explode( ',', $_REQUEST['add-to-cart'] ) ) );
    // Stop core from choking on the (invalid) combined id.
    unset( $_REQUEST['add-to-cart'], $_GET['add-to-cart'], $_POST['add-to-cart'] );
    foreach ( $ids as $id ) {
        $product = wc_get_product( $id );
        if ( $product && $product->is_purchasable() && $product->is_in_stock() ) {
            WC()->cart->add_to_cart( $id );
        }
    }
    wp_safe_redirect( wc_get_cart_url() );
    exit;
}, 15 );