<?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;
 *
 * @author Alexander Zagovorichev <zagovorichev@1pt.com>
 */

namespace oat\taoProctoring\model;


use oat\oatbox\user\User;

interface ServiceDelegatorInterface
{
    /**
     * Services which could handle the request
     */
    const SERVICE_HANDLERS = 'handlers';

    /**
     * Returns applicable service
     *
     * @throws \common_exception_NoImplementation
     * @param $user
     * @param $deliveryId
     * @return DelegatedServiceHandler
     */
    public function getResponsibleService(User $user, $deliveryId = null);

    /**
     * @param $handler
     */
    public function registerHandler(DelegatedServiceHandler $handler);
}