ExternalChatRelations.php

См. документацию.

<?php
 
namespace Bitrix\Im\V2\Relation;
 
use Bitrix\Im\V2\Chat\ExternalChat;
use Bitrix\Im\V2\Chat\ExternalChat\Event\FilterUsersByAccessEvent;
 
class ExternalChatRelations extends ChatRelations
{
    protected const NEED_ADDITIONAL_FILTER_BY_ACCESS = true;
 
    public function filterUserIdsByAccess(array $userIds): array
    {
        $chat = ExternalChat::getInstance($this->chatId);
        if (!$chat instanceof ExternalChat)
        {
            return $userIds;
        }
 
        $event = new FilterUsersByAccessEvent($chat, $userIds);
        $event->send();
        if (!$event->hasResult())
        {
            return $userIds;
        }
 
        $result = $event->getResult();
        $usersWithAccess = $result->getResult()['userIds'] ?? [];
        self::deleteUsersWithoutAccess($this->chatId, $userIds, $usersWithAccess);
 
        return $usersWithAccess;
    }
 
    private static function deleteUsersWithoutAccess(int $chatId, array $userIds, array $usersWithAccess): void
    {
        $cleaner = LazyCleaner::getInstance();
        if (!$cleaner->canMarkForDeletion())
        {
            return;
        }
 
        $toDelete = array_diff($userIds, $usersWithAccess);
 
        foreach ($toDelete as $userId)
        {
            $canMark = LazyCleaner::getInstance()->markForDeletion($chatId, $userId);
            if (!$canMark)
            {
                break;
            }
        }
    }
}