<?php

class App_User_Auth extends Qs_Auth
{
    /** @var App_User_Auth */
    protected static $_instance;

    protected $_sessionNamespace = 'user_auth';
    protected $_defaultBackPageQuery = array(array('handler' => 'user'), null, array('placeholders' => 'User_'));
    protected $_loginPageQuery = array(null, array('type' => 'User_Login_'));
    protected $_role = 'user';

    /**
     * Return auth object
     * @return App_User_Auth
     */
    public static function getInstance()
    {
        if (null === self::$_instance) {
            self::$_instance = new self();
        }
        return self::$_instance;
    }

    public function getSuMode()
    {
        return (bool) $this->getSessionValue('suModeEnabled');
    }

    public function setSuMode($flag = true)
    {
        $this->setSessionValue('suModeEnabled', (bool) $flag);
    }

}