PinMessages.php

<?php
 
namespace Bitrix\Im\V2\Sync\Entity;
 
use Bitrix\Im\V2\Link\Pin\PinCollection;
use Bitrix\Im\V2\Rest\RestAdapter;
use Bitrix\Im\V2\Sync\Entity;
use Bitrix\Im\V2\Sync\Event;
 
class PinMessages implements Entity
{
    private array $pinIds = [];
    private array $deletedPinIds = [];
 
    public function add(Event $event): void
    {
        $entityId = $event->entityId;
        switch ($event->eventName)
        {
            case Event::DELETE_EVENT:
                $this->deletedPinIds[$entityId] = $entityId;
                break;
            case Event::ADD_EVENT:
                $this->pinIds[$entityId] = $entityId;
                break;
        }
    }
 
    public function getData(): array
    {
        $fullPin = new PinCollection($this->pinIds);
 
        return [
            'addedPins' => (new RestAdapter($fullPin))->toRestFormat(),
            'deletedPins' => $this->deletedPinIds,
        ];
    }
}