<?php

/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2017 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
 *
 */

use oat\generis\model\GenerisRdf;
use oat\oatbox\user\AnonymousUser;
use oat\oatbox\user\UserLanguageServiceInterface;
use oat\oatbox\session\SessionContext;

/**
 * Represents a userless Session.
 *
 * @access private
 * @author Joel Bout, <joel@taotesting.com>
 * @package generis

 */
class common_session_AnonymousSession extends common_session_BasicSession implements common_session_StatelessSession
{
    /**
     * @param SessionContext[] $contexts
     */
    public function __construct($contexts = [])
    {
        parent::__construct(new AnonymousUser(), $contexts);
    }

    /**
     * (non-PHPdoc)
     * @see common_session_Session::getDataLanguage()
     */
    public function getUserLabel()
    {
        return __('guest');
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::getUserRoles()
     */
    public function getUserRoles()
    {
        return [GenerisRdf::INSTANCE_ROLE_ANONYMOUS];
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::getDataLanguage()
     */
    public function getDataLanguage()
    {
        return $this->getServiceLocator()->get(UserLanguageServiceInterface::SERVICE_ID)->getDefaultLanguage();
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::getInterfaceLanguage()
     */
    public function getInterfaceLanguage()
    {
        return defined('DEFAULT_ANONYMOUS_INTERFACE_LANG')
            ? DEFAULT_ANONYMOUS_INTERFACE_LANG
            : $this->getServiceLocator()->get(UserLanguageServiceInterface::SERVICE_ID)->getDefaultLanguage();
        ;
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::getTimeZone()
     */
    public function getTimeZone()
    {
        return TIME_ZONE;
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::getUserPropertyValues()
     */
    public function getUserPropertyValues($property)
    {
        return [];
    }
    
    /**
     * (non-PHPdoc)
     * @see common_session_Session::refresh()
     */
    public function refresh()
    {
        // nothing to do here
    }
}