<?php

/**
 * This file is part of the FreeDSx SASL package.
 *
 * (c) Chad Sikorra <Chad.Sikorra@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FreeDSx\Sasl\Encoder;

use FreeDSx\Sasl\Message;
use FreeDSx\Sasl\SaslContext;

/**
 * Responsible for encoding / decoding ANONYMOUS messages.
 *
 * @author Chad Sikorra <Chad.Sikorra@gmail.com>
 */
class AnonymousEncoder implements EncoderInterface
{
    /**
     * {@inheritDoc}
     */
    public function encode(Message $message, SaslContext $context): string
    {
        if ($message->has('trace')) {
            return $message->get('trace');
        }

        return '';
    }

    /**
     * {@inheritDoc}
     */
    public function decode(string $data, SaslContext $context): Message
    {
        $message = new Message();

        if($data !== '') {
            $message->set('trace', $data);
        }

        return $message;
    }
}