<?php

class App_Application_User_Auth extends Qs_Auth
{
    protected static $_instance; 
    protected $_sessionNamespace = 'app_application_user_auth';
    protected $_defaultBackPageQuery = array(null, array('type' => 'Application_Document_'), array('userType' => App_Application_Document_Obj::USER_TYPE_APPLICANT));
    protected $_loginPageQuery = array(null, array('type' => 'Application_User_Login_'));
    
    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);
    }

    public function allowLogin()
    {
        if ('y' == App_Settings_Obj::get('applicationEnableApplicants')
            && date('Y-m-d') <= App_Settings_Obj::get('applicationDeadlineDate')
        ) {
            return true;
        }
        return false;
    }

    public function authenticate(Zend_Auth_Adapter_Interface $adapter)
    {
        if (!$this->allowLogin()) {
            App_Application_User_Logout_View::clearIdentity();
            return new Zend_Auth_Result(Zend_Auth_Result::FAILURE_UNCATEGORIZED, $adapter->getIdentity(), array('Sorry, You Are Not Allowed to Access Application Portal'));
        }
        $isStorageEmpty = !$this->getStorage()->read();
        $result = parent::authenticate($adapter);
        if (!$result->isValid() || $isStorageEmpty) {
            App_Application_Document_AdminView::refreshDocumentsAccessFile();
        }
        return $result;
    }
}