<?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\Uid;

/**
 * @author Grégoire Pineau <lyrixx@lyrixx.info>
 *
 * @see https://tools.ietf.org/html/rfc4122#appendix-C for details about namespaces
 */
class Uuid extends AbstractUid
{
    public const NAMESPACE_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
    public const NAMESPACE_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
    public const NAMESPACE_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8';
    public const NAMESPACE_X500 = '6ba7b814-9dad-11d1-80b4-00c04fd430c8';

    protected const TYPE = 0;
    protected const NIL = '00000000-0000-0000-0000-000000000000';
    protected const MAX = 'ffffffff-ffff-ffff-ffff-ffffffffffff';

    public function __construct(string $uuid, bool $checkVariant = false)
    {
        $type = preg_match('{^[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}$}Di', $uuid) ? (int) $uuid[14] : false;

        if (false === $type || (static::TYPE ?: $type) !== $type) {
            throw new \InvalidArgumentException(sprintf('Invalid UUID%s: "%s".', static::TYPE ? 'v'.static::TYPE : '', $uuid));
        }

        $this->uid = strtolower($uuid);

        if ($checkVariant && !\in_array($this->uid[19], ['8', '9', 'a', 'b'], true)) {
            throw new \InvalidArgumentException(sprintf('Invalid UUID%s: "%s".', static::TYPE ? 'v'.static::TYPE : '', $uuid));
        }
    }

    public static function fromString(string $uuid): static
    {
        if (22 === \strlen($uuid) && 22 === strspn($uuid, BinaryUtil::BASE58[''])) {
            $uuid = str_pad(BinaryUtil::fromBase($uuid, BinaryUtil::BASE58), 16, "\0", \STR_PAD_LEFT);
        }

        if (16 === \strlen($uuid)) {
            // don't use uuid_unparse(), it's slower
            $uuid = bin2hex($uuid);
            $uuid = substr_replace($uuid, '-', 8, 0);
            $uuid = substr_replace($uuid, '-', 13, 0);
            $uuid = substr_replace($uuid, '-', 18, 0);
            $uuid = substr_replace($uuid, '-', 23, 0);
        } elseif (26 === \strlen($uuid) && Ulid::isValid($uuid)) {
            $ulid = new NilUlid();
            $ulid->uid = strtoupper($uuid);
            $uuid = $ulid->toRfc4122();
        }

        if (__CLASS__ !== static::class || 36 !== \strlen($uuid)) {
            return new static($uuid);
        }

        if (self::NIL === $uuid) {
            return new NilUuid();
        }

        if (self::MAX === $uuid = strtr($uuid, 'F', 'f')) {
            return new MaxUuid();
        }

        if (!\in_array($uuid[19], ['8', '9', 'a', 'b', 'A', 'B'], true)) {
            return new self($uuid);
        }

        return match ((int) $uuid[14]) {
            UuidV1::TYPE => new UuidV1($uuid),
            UuidV3::TYPE => new UuidV3($uuid),
            UuidV4::TYPE => new UuidV4($uuid),
            UuidV5::TYPE => new UuidV5($uuid),
            UuidV6::TYPE => new UuidV6($uuid),
            UuidV7::TYPE => new UuidV7($uuid),
            UuidV8::TYPE => new UuidV8($uuid),
            default => new self($uuid),
        };
    }

    final public static function v1(): UuidV1
    {
        return new UuidV1();
    }

    final public static function v3(self $namespace, string $name): UuidV3
    {
        // don't use uuid_generate_md5(), some versions are buggy
        $uuid = md5(hex2bin(str_replace('-', '', $namespace->uid)).$name, true);

        return new UuidV3(self::format($uuid, '-3'));
    }

    final public static function v4(): UuidV4
    {
        return new UuidV4();
    }

    final public static function v5(self $namespace, string $name): UuidV5
    {
        // don't use uuid_generate_sha1(), some versions are buggy
        $uuid = substr(sha1(hex2bin(str_replace('-', '', $namespace->uid)).$name, true), 0, 16);

        return new UuidV5(self::format($uuid, '-5'));
    }

    final public static function v6(): UuidV6
    {
        return new UuidV6();
    }

    final public static function v7(): UuidV7
    {
        return new UuidV7();
    }

    final public static function v8(string $uuid): UuidV8
    {
        return new UuidV8($uuid);
    }

    public static function isValid(string $uuid): bool
    {
        if (self::NIL === $uuid && \in_array(static::class, [__CLASS__, NilUuid::class], true)) {
            return true;
        }

        if (self::MAX === strtr($uuid, 'F', 'f') && \in_array(static::class, [__CLASS__, MaxUuid::class], true)) {
            return true;
        }

        if (!preg_match('{^[0-9a-f]{8}(?:-[0-9a-f]{4}){2}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$}Di', $uuid)) {
            return false;
        }

        return __CLASS__ === static::class || static::TYPE === (int) $uuid[14];
    }

    public function toBinary(): string
    {
        return hex2bin(str_replace('-', '', $this->uid));
    }

    /**
     * Returns the identifier as a RFC4122 case insensitive string.
     *
     * @see https://tools.ietf.org/html/rfc4122#section-3
     *
     * @example 09748193-048a-4bfb-b825-8528cf74fdc1 (len=36)
     */
    public function toRfc4122(): string
    {
        return $this->uid;
    }

    public function compare(AbstractUid $other): int
    {
        if (false !== $cmp = uuid_compare($this->uid, $other->uid)) {
            return $cmp;
        }

        return parent::compare($other);
    }

    private static function format(string $uuid, string $version): string
    {
        $uuid[8] = $uuid[8] & "\x3F" | "\x80";
        $uuid = substr_replace(bin2hex($uuid), '-', 8, 0);
        $uuid = substr_replace($uuid, $version, 13, 1);
        $uuid = substr_replace($uuid, '-', 18, 0);

        return substr_replace($uuid, '-', 23, 0);
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox