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✏️ Editing: StringCodec.php

<?php

/**
 * This file is part of the ramsey/uuid library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

declare(strict_types=1);

namespace Ramsey\Uuid\Codec;

use Ramsey\Uuid\Builder\UuidBuilderInterface;
use Ramsey\Uuid\Exception\InvalidArgumentException;
use Ramsey\Uuid\Exception\InvalidUuidStringException;
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\UuidInterface;

use function bin2hex;
use function hex2bin;
use function implode;
use function sprintf;
use function str_replace;
use function strlen;
use function substr;

/**
 * StringCodec encodes and decodes RFC 9562 (formerly RFC 4122) UUIDs
 *
 * @immutable
 */
class StringCodec implements CodecInterface
{
    /**
     * Constructs a StringCodec
     *
     * @param UuidBuilderInterface $builder The builder to use when encoding UUIDs
     */
    public function __construct(private UuidBuilderInterface $builder)
    {
    }

public function encode(UuidInterface $uuid): string
    {
        /** @phpstan-ignore possiblyImpure.methodCall */
        $hex = bin2hex($uuid->getFields()->getBytes());

/** @var non-empty-string */
        return sprintf(
            '%08s-%04s-%04s-%04s-%012s',
            substr($hex, 0, 8),
            substr($hex, 8, 4),
            substr($hex, 12, 4),
            substr($hex, 16, 4),
            substr($hex, 20),
        );
    }

/**
     * @return non-empty-string
     */
    public function encodeBinary(UuidInterface $uuid): string
    {
        /** @phpstan-ignore-next-line PHPStan complains that this is not a non-empty-string. */
        return $uuid->getFields()->getBytes();
    }

/**
     * @throws InvalidUuidStringException
     *
     * @inheritDoc
     */
    public function decode(string $encodedUuid): UuidInterface
    {
        /** @phpstan-ignore possiblyImpure.methodCall */
        return $this->builder->build($this, $this->getBytes($encodedUuid));
    }

public function decodeBytes(string $bytes): UuidInterface
    {
        if (strlen($bytes) !== 16) {
            throw new InvalidArgumentException('$bytes string should contain 16 characters.');
        }

return $this->builder->build($this, $bytes);
    }

/**
     * Returns the UUID builder
     */
    protected function getBuilder(): UuidBuilderInterface
    {
        return $this->builder;
    }

/**
     * Returns a byte string of the UUID
     */
    protected function getBytes(string $encodedUuid): string
    {
        $parsedUuid = str_replace(['urn:', 'uuid:', 'URN:', 'UUID:', '{', '}', '-'], '', $encodedUuid);

$components = [
            substr($parsedUuid, 0, 8),
            substr($parsedUuid, 8, 4),
            substr($parsedUuid, 12, 4),
            substr($parsedUuid, 16, 4),
            substr($parsedUuid, 20),
        ];

if (!Uuid::isValid(implode('-', $components))) {
            throw new InvalidUuidStringException('Invalid UUID string: ' . $encodedUuid);
        }

return (string) hex2bin($parsedUuid);
    }
}

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