<?php
/**
 * @copyright Copyright (C) 2010-2023, the Friendica project
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

namespace Friendica\Util\Clock;

use DateTimeImmutable;
use DateTimeZone;

/**
 * Inspired by lcobucci/clock
 * @see https://github.com/lcobucci/clock
 */
final class SystemClock implements \Psr\Clock\ClockInterface
{
	/** @var DateTimeZone */
	private $timezone;

	public function __construct(DateTimeZone $timezone = null)
	{
		$this->timezone = $timezone ?? new DateTimeZone('UTC');
	}

	/**
	 * @inheritDoc
	 */
	public function now(): DateTimeImmutable
	{
		return new DateTimeImmutable('now', $this->timezone);
	}
}