helper.php

<?php
 
namespace Bitrix\Calendar\Sharing\Link\Rule;
 
use Bitrix\Calendar\Core\Base\SingletonTrait;
use Bitrix\Calendar\Sharing\Link\CrmDealLink;
use Bitrix\Calendar\Sharing\Link\Link;
use Bitrix\Calendar\Sharing\Link\UserLink;
use Bitrix\Main\Loader;
 
class Helper
{
    use SingletonTrait;
    
    public function saveLinkRule(string $linkHash,  array $ruleArray)
    {
        $link = (new \Bitrix\Calendar\Sharing\Link\Factory())->getLinkByHash($linkHash);
        if (is_null($link))
        {
            return false;
        }
 
        if ($link instanceof UserLink && \CCalendar::GetCurUserId() !== $link->getUserId())
        {
            return false;
        }
        
        if ($this->isUserResponsibleForLink($link))
        {
            return false;
        }
        
        $linkObjectRule = (new Factory())->getLinkObjectRuleByLink($link);
        if (is_null($linkObjectRule))
        {
            return false;
        }
        
        $sharingRuleMapper = new Mapper();
        $rule = $sharingRuleMapper->buildRuleFromArray($ruleArray);
        $sharingRuleMapper->saveForLinkObject($rule, $linkObjectRule);
        
        return true;
    }
    
    private function isUserResponsibleForLink(Link $link): bool
    {
        if (!Loader::includeModule('crm'))
        {
            return false;
        }
        
        if (!($link instanceof CrmDealLink))
        {
            return false;
        }
        
        $currentUserId = (new \Bitrix\Crm\Service\Context())->getUserId();
        
        return $this->getAssignedByIdCrmDeal($link) !== $currentUserId;
    }
    
    private function getAssignedByIdCrmDeal(CrmDealLink $link): ?int
    {
        $entityBroker = \Bitrix\Crm\Service\Container::getInstance()->getEntityBroker(\CCrmOwnerType::Deal);
        if (!$entityBroker)
        {
            return null;
        }
        
        $entity = $entityBroker->getById($link->getEntityId());
        if (!$entity)
        {
            return null;
        }
        
        return $entity->getAssignedById();
    }
}