/**
 * Скрывает товары с нулевой ценой.
 *
 * @author Mikhail Kobzarev <[email protected]>
 */
add_action(
    'pre_get_posts',
    static function ( WP_Query $query ): void {
        if ( is_admin() || ! $query->is_main_query() ) {
            return;
        }

        if ( is_shop() || is_product_category() || is_product_tag() ) {
            $query->set(
                'meta_query',
                array(
                    array(
                        'key'     => '_regular_price',
                        'value'   => 0,
                        'compare' => '>',
                        'type'    => 'NUMERIC',
                    )
                )
            );

        }
    },
    25
);

add_filter(
    'wpc_filters_checkbox_term_html',
    function ( string $html, string $link_attributes, WP_Term $term, $filter ): string {
      if ( $term->taxonomy === 'pa_brand' ) {
        $img  = '<img src="' . plugin_dir_url( __FILE__ ) . '/img/' . $term->slug . '.svg" width="15" height="15" />';
        $html = '<a ' . $link_attributes . '>' . $img . ' ' . $term->name . '</a>';
      }

        return $html;
    },
    10,
    4
);