<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXM\ProviderImapMail\Service\Remote\Command;

use Gricob\IMAP\Protocol\Command\Argument\Search\Criteria;

/**
 * IMAP UNSEEN search criteria.
 *
 * gricob does not include an UNSEEN criteria; this thin class fills the gap.
 * Used with SearchCommand to count unread messages via SEARCH UNSEEN.
 */
final readonly class UnseenCriteria implements Criteria
{
    public function __toString(): string
    {
        return 'UNSEEN';
    }
}