<?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;

use Symfony\Component\Mime\Address;
use Symfony\Component\Mime\Exception\RfcComplianceException;

/**
* An ID MIME Header for something like Message-ID or Content-ID (one or more addresses).
*
* @author Chris Corbyn
*/
final class IdentificationHeader extends AbstractHeader
{
private $ids = [];
private $idsAsAddresses = [];

/**
* @param string|array $ids
*/
public function __construct(string $name, $ids)
{
parent::__construct($name);

$this->setId($ids);
}

/**
* @param string|array $body a string ID or an array of IDs
*
* @throws RfcComplianceException
*/
public function setBody($body)
{
$this->setId($body);
}

public function getBody(): array
{
return $this->getIds();
}

/**
* Set the ID used in the value of this header.
*
* @param string|array $id
*
* @throws RfcComplianceException
*/
public function setId($id)
{
$this->setIds(\is_array($id) ? $id : [$id]);
}

/**
* Get the ID used in the value of this Header.
*
* If multiple IDs are set only the first is returned.
*/
public function getId(): ?string
{
return $this->ids[0] ?? null;
}

/**
* Set a collection of IDs to use in the value of this Header.
*
* @param string[] $ids
*
* @throws RfcComplianceException
*/
public function setIds(array $ids)
{
$this->ids = [];
$this->idsAsAddresses = [];
foreach ($ids as $id) {
$this->idsAsAddresses[] = new Address($id);
$this->ids[] = $id;
}
}

/**
* Get the list of IDs used in this Header.
*
* @return string[]
*/
public function getIds(): array
{
return $this->ids;
}

public function getBodyAsString(): string
{
$addrs = [];
foreach ($this->idsAsAddresses as $address) {
$addrs[] = '<'.$address->toString().'>';
}

return implode(' ', $addrs);
}
}