<?php
/**
* This file is part of the ramsey/uuid library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
* @license http://opensource.org/licenses/MIT MIT
* @link https://benramsey.com/projects/ramsey-uuid/ Documentation
* @link https://packagist.org/packages/ramsey/uuid Packagist
* @link https://github.com/ramsey/uuid GitHub
*/

namespace Ramsey\Uuid\Provider\Time;

use Ramsey\Uuid\Provider\TimeProviderInterface;

/**
* FixedTimeProvider uses an previously-generated timestamp to provide the time
*
* This provider allows the use of a previously-generated timestamp, such as one
* stored in a database, when creating version 1 UUIDs.
*/
class FixedTimeProvider implements TimeProviderInterface
{
/**
* @var int[] Array containing `sec` and `usec` components of a timestamp
*/
private $fixedTime;

/**
* Constructs a `FixedTimeProvider` using the provided `$timestamp`
*
* @param int[] Array containing `sec` and `usec` components of a timestamp
* @throws \InvalidArgumentException if the `$timestamp` does not contain `sec` or `usec` components
*/
public function __construct(array $timestamp)
{
if (!array_key_exists('sec', $timestamp) || !array_key_exists('usec', $timestamp)) {
throw new \InvalidArgumentException('Array must contain sec and usec keys.');
}

$this->fixedTime = $timestamp;
}

/**
* Sets the `usec` component of the timestamp
*
* @param int $value The `usec` value to set
*/
public function setUsec($value)
{
$this->fixedTime['usec'] = $value;
}

/**
* Sets the `sec` component of the timestamp
*
* @param int $value The `sec` value to set
*/
public function setSec($value)
{
$this->fixedTime['sec'] = $value;
}

/**
* Returns a timestamp array
*
* @return int[] Array containing `sec` and `usec` components of a timestamp
*/
public function currentTime()
{
return $this->fixedTime;
}
}