get_user_profile_structure($id) . $attribution_end, $user, $id);
    }


    /**
     * Get the registration structure from the database
     *
     * @param int $id
     *
     * @return string
     */
    public static function get_user_profile_structure($id)
    {
        if (FR::is_drag_drop($id, FR::USER_PROFILE_TYPE)) {
            $form_instance = FR::dnd_class_instance($id, FR::USER_PROFILE_TYPE);
            if ( ! $form_instance) return esc_html__('Form class not found. Please check if this user profile actually exist in ProfilePress.', 'wp-user-avatar');
            $user_profile_structure = $form_instance->form_structure();
        } else {
            $user_profile_structure = FR::get_form_meta($id, FR::USER_PROFILE_TYPE, FR::FORM_STRUCTURE);
        }

        return do_shortcode($user_profile_structure);
    }


    /**
     * Get the CSS stylesheet for the ID registration
     *
     * @return mixed
     */
    public static function get_user_profile_css($id)
    {
        if (FR::is_drag_drop($id, FR::USER_PROFILE_TYPE)) {
            $form_instance = FR::dnd_class_instance($id, FR::USER_PROFILE_TYPE);
            if ( ! $form_instance) return '';
            $user_profile_css = $form_instance->minified_form_css();
        } else {
            $user_profile_css = FR::get_form_meta($id, FR::USER_PROFILE_TYPE, FR::FORM_CSS);
        }

        return "<style type=\"text/css\">\r\n $user_profile_css \r\n</style>";
    }

    /** Rewrite the title of the profile */
    public function rewrite_profile_title($title)
    {
        global $post, $ppress_frontend_profile_user_obj;

        // if currently viewed page is the page with the front-end profile, rewrite the title accordingly.
        if (@$post->ID == ppress_get_setting('set_user_profile_shortcode')
            || has_shortcode('profilepress-user-profile', @$post->post_content)
        ) {

            $user_object = $ppress_frontend_profile_user_obj;

            if (isset($user_object) && is_object($user_object)) {

                // if first and last name is set, use the combo as title
                if ( ! empty($user_object->first_name) && ! empty($user_object->last_name)) {
                    $title = "$user_object->first_name {$user_object->last_name}";
                } // if either first or last name is set, use either as title
                elseif ( ! empty($user_object->first_name) || ! empty($user_object->last_name)) {
                    $title = "$user_object->first_name {$user_object->last_name}";
                } // else use their username
                else {
                    $title = $user_object->user_login;
                }

                $title = apply_filters('ppress_profile_username_title', self::title_possessiveness($title), $title);
            }
        }

        return $title;
    }

    public static function title_possessiveness($string)
    {
        $string   = trim($string);
        $lastchar = substr($string, -1);

        $profile_string = esc_html__('Profile', 'wp-user-avatar');

        if ('s' == $lastchar) {
            $title = ucwords($string) . "' $profile_string";
        } else {
            $title = ucwords($string) . "'s $profile_string";
        }

        return $title;
    }

    public static function get_instance()
    {
        static $instance = false;

        if ( ! $instance) {
            $instance = new self;
        }

        return $instance;
    }
}