Script update menu_order products by Category

// Script update menu_order products by Category
add_action('init', 'tzn_update_product_menu_order');
if ( ! function_exists( 'tzn_update_product_menu_order' ) ) {
	function tzn_update_product_menu_order(){
		if(current_user_can('administrator') && isset($_GET['update_product_menu_order']) && $_GET['update_product_menu_order'] == "1"){
			$args = array(
                'taxonomy' => 'product_cat',
                'hide_empty' => false,
            );
            $all_categories = get_categories( $args );
            $i = 0;
            foreach ($all_categories as $cat) {
                $query = new WC_Product_Query( array(
                    'limit' => -1,
                    'orderby' => 'date',
                    'order' => 'DESC',
                    'return' => 'ids',
                    'tax_query' => array( 
                        array(
                            'taxonomy' => 'product_cat',
                            'field'    => 'slug',
                            'terms'    => $cat->slug,
                        ) 
                    ),
                ) );
                $products = $query->get_products();
                if($products && count($products ) > 0){
                    foreach($products as $product_id){
                        $product = wc_get_product($product_id);
                        echo "<br>-- product_id: ".$product_id;
                        wp_update_post( 
                            array(
                                'ID' => $product_id, 
                                'menu_order' => $i
                            ) 
                        );
                        update_post_meta( $product_id, 'update_product_menu_order', 1 );
                        echo "updated";
                    }
                }
                $i++;
            }
            
		}
	}
}

Update menu_order when add new/ update Product

// Update menu_order when add new
add_action( 'woocommerce_new_product', 'tzn_woocommerce_new_product_update_menu_order_by_category', 10, 1 );
add_action( 'woocommerce_update_product', 'tzn_woocommerce_new_product_update_menu_order_by_category', 10, 1 );
if ( ! function_exists( 'tzn_woocommerce_new_product_update_menu_order_by_category' ) ) {
    function tzn_woocommerce_new_product_update_menu_order_by_category( $product_id ) {
        //$product = wc_get_product( $product_id );
        $terms = get_the_terms( $product_id, 'product_cat' );
        foreach ($terms as $term) {
            $product_cat_id = $term->term_id;
            break;
        }
        $args = array(
            'taxonomy' => 'product_cat',
            'hide_empty' => false,
        );
        $all_categories = get_categories( $args );
        $i = 0;
        foreach ($all_categories as $cat) {
            if($product_cat_id == $cat->term_id){
                wp_update_post( 
                    array(
                        'ID' => $product_id, 
                        'menu_order' => $i
                    ) 
                );
                break;
            }
            $i++;
        }

    }
}