disable bottom related post if empty

add_filter( 'jnews_force_disable_related_post', 'disable_bottom_related_if_empty', 100 );

function disable_bottom_related_if_empty( $flag ) {
    if ( ! $flag ) {
        $post_per_page = get_theme_mod( 'jnews_single_number_post_related', 6 );
        $match         = get_theme_mod( 'jnews_single_post_related_match', 'category' );
        $tag           = $category = $result = array();

        $attr = array(
            'number_post'  => $post_per_page,
            'include_tag'  => implode( ',', $tag ),
            'fields'       => 'ids', // untuk performa
            'post__not_in' => array( get_the_ID() ),
        );

        if ( $match === 'category' ) {
            \JNews\Single\SinglePost::getInstance()->recursive_category( get_the_category(), $result );

            if ( $result ) {
                foreach ( $result as $cat ) {
                    $category[] = $cat->term_id;
                }
            }
            if ( ! empty( $category ) ) {
                $attr['cat'] = implode( ',', $category );
            }
        } elseif ( $match === 'tag' ) {
            $tags = get_the_tags();
            if ( $tags ) {
                foreach ( $tags as $cat ) {
                    $tag[] = $cat->term_id;
                }
            }
            if ( ! empty( $tag ) ) {
                $attr['tag__in'] = implode( ',', $tag );
            }
        }

        $query = new WP_Query( $attr );
        if ( 0 === $query->found_posts ) {
            return true;
        }
    }

        return $flag;
}