<?php

declare(strict_types=1);

/*

* This file is part of the brainbits transcoder package.

*

* (c) brainbits GmbH

*

* For the full copyright and license information, please view the LICENSE

* file that was distributed with this source code.

*/

namespace Brainbits\Transcoder\Encoder;

use Brainbits\Transcoder\Exception\EncodeFailedException;

use function gzdeflate;

/**

* deflate encoder.

*/

class DeflateEncoder implements EncoderInterface

{

public const TYPE = 'deflate';

public function encode(string $data): string

{

$data = gzdeflate($data, 9);

if (!$data) {

throw new EncodeFailedException('gzdeflate returned no data.');

}

return $data;

}

public function supports(?string $type): bool

{

return $type === self::TYPE;

}

}