Conditional trailing slashes

function pm_conditional_trailing_slash_redirect() {
    global $permalink_manager_options;

    $trailing_slashes_redirect = (!empty($permalink_manager_options['general']['trailing_slashes_redirect'])) ? $permalink_manager_options['general']['trailing_slashes_redirect'] : false;

    if(function_exists('is_product_category') && is_product_category() && $trailing_slashes_redirect) {
        $permalink_manager_options['general']['trailing_slashes'] = 2;
    }
}
add_action('wp', 'pm_conditional_trailing_slash_redirect', 99);

function pm_product_cat_trailing_slashes($permalink, $term) {
    if(!empty($term->taxonomy) && (in_array($term->taxonomy, array('product_cat')))) {
        $permalink = untrailingslashit($permalink);
    }

    return $permalink;
}
add_filter('permalink_manager_filter_final_term_permalink', 'pm_product_cat_trailing_slashes', 999, 2);