uidgenerator.php

<?php
 
namespace Bitrix\Calendar\Core\Event\Tools;
 
use Bitrix\Calendar\Core\Base\Date;
use Bitrix\Calendar\Util;
 
class UidGenerator
{
    public const DATE_PART_FORMAT = 'Ymd\THis\Z';
    public const MAX_UID_LENGTH = 255;
    private const CORRECT_LENGTH = 2;
 
    private Date $date;
    private string $portalName;
    private int $userId;
 
    public static function createInstance(): UidGenerator
    {
        return new self();
    }
 
    public function getUidWithDate(): string
    {
        $portalName = $this->portalName ?? '';
 
        $datePart = $this->date
            ->setTimezone(Util::prepareTimezone())
            ->format(self::DATE_PART_FORMAT)
        ;
 
        $postfix = md5((string)time(). $this->userId);
 
        $datePartLength = mb_strlen($datePart);
        $portalNameLength = mb_strlen($portalName);
        $hashLength = mb_strlen($postfix);
 
        if (($datePartLength + $portalNameLength + $hashLength) > self::MAX_UID_LENGTH)
        {
            $allowableLength = self::MAX_UID_LENGTH - $datePartLength - $hashLength - self::CORRECT_LENGTH;
            $portalName = substr($this->portalName, 0, $allowableLength);
        }
 
        return $datePart . '-' . $postfix . "@" . $portalName;
    }
 
    public function setDate(Date $date): UidGenerator
    {
        $this->date = $date;
 
        return $this;
    }
 
    public function setPortalName(string $portalName): UidGenerator
    {
        $this->portalName = $portalName;
 
        return $this;
    }
 
    public function setUserId(int $userId): UidGenerator
    {
        $this->userId = $userId;
 
        return $this;
    }
}