<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Mime\Header;

/**
* A Date MIME Header.
*
* @author Chris Corbyn
*/
final class DateHeader extends AbstractHeader
{
private $dateTime;

public function __construct(string $name, \DateTimeInterface $date)
{
parent::__construct($name);

$this->setDateTime($date);
}

/**
* @param \DateTimeInterface $body
*/
public function setBody($body)
{
$this->setDateTime($body);
}

public function getBody(): \DateTimeImmutable
{
return $this->getDateTime();
}

public function getDateTime(): \DateTimeImmutable
{
return $this->dateTime;
}

/**
* Set the date-time of the Date in this Header.
*
* If a DateTime instance is provided, it is converted to DateTimeImmutable.
*/
public function setDateTime(\DateTimeInterface $dateTime)
{
if ($dateTime instanceof \DateTime) {
$immutable = new \DateTimeImmutable('@'.$dateTime->getTimestamp());
$dateTime = $immutable->setTimezone($dateTime->getTimezone());
}
$this->dateTime = $dateTime;
}

public function getBodyAsString(): string
{
return $this->dateTime->format(\DateTime::RFC2822);
}
}