function shortcode_categorie_principali_wc() {

    $args = array(

        'taxonomy'     => 'product_cat',

        'orderby'      => 'menu_order',

        'order'        => 'ASC',

        'hide_empty'   => false,

        'parent'       => 0,

        'pad_counts'   => true,

        'hierarchical' => true,

    );

    $categories = get_terms($args);

    if (empty($categories) || is_wp_error($categories)) {

        return '<p>Nessuna categoria trovata.</p>';

    }

    $output = '<ul class="categorie-principali-woocommerce">';

    foreach ($categories as $category) {

        $output .= '<li><a href="' . esc_url(get_term_link($category)) . '">' . esc_html($category->name) . '</a></li>';

    }

    $output .= '</ul>';

    return $output;

}

add_shortcode('categorie_principali_wc', 'shortcode_categorie_principali_wc');