Dialog.php

См. документацию.

<?php
 
declare(strict_types=1);
 
namespace Bitrix\Socialnetwork\Collab\Integration\IM;
 
use Bitrix\Main\Loader;
 
class Dialog
{
    public static function getDialogId(int $chatId): string
    {
        if (!Loader::includeModule('im'))
        {
            return '';
        }
 
        if ($chatId <= 0)
        {
            return '';
        }
 
        return \Bitrix\Im\V2\Chat::getInstance($chatId)->getDialogId();
    }
 
    public static function getChatId(string $dialogId): int
    {
        if (!Loader::includeModule('im'))
        {
            return 0;
        }
 
        return (int)\Bitrix\Im\Dialog::getChatId($dialogId);
    }
}