<?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) 2019 (original work) Open Assessment Technologies SA ;
 *
 */

namespace oat\taoQtiTest\models\runner\time;

use oat\oatbox\service\ConfigurableService;
use oat\taoTests\models\runner\time\TimerStrategyInterface;

class TimerStrategyService extends ConfigurableService implements TimerStrategyInterface
{
    /**
     * @inheritDoc
     */
    public function getExtraTime($time, $multiplier)
    {
        if ($multiplier <= 1) {
            return 0;
        }

        return $this->getMultipliedTime($time, $multiplier) - $time;
    }

    /**
     * @inheritDoc
     */
    public function getMultipliedTime($time, $multiplier)
    {
        if ($multiplier < 1) {
            return $time;
        }

        return $time * $multiplier;
    }
}