<?php

declare(strict_types=1);

namespace Shared\Helpers;

use Ramsey\Uuid\Rfc4122\FieldsInterface as Rfc4122FieldsInterface;
use Ramsey\Uuid\UuidInterface;

final readonly class UuidHelper
{
    private function __construct()
    {
        // Static class
    }

    public static function isV4(UuidInterface $uuid): bool
    {
        return self::version($uuid) === 4;
    }

    public static function isV7(UuidInterface $uuid): bool
    {
        return self::version($uuid) === 7;
    }

    public static function version(UuidInterface $uuid): int
    {
        $fields = $uuid->getFields();

        if ($fields instanceof Rfc4122FieldsInterface) {
            $version = $fields->getVersion();

            if ($version !== null) {
                return $version;
            }
        }

        $uuidString = $uuid->toString();

        if (strlen($uuidString) >= 15) {
            return (int) hexdec($uuidString[14]);
        }

        return 0;
    }
}