Pin.php

<?php
 
namespace Bitrix\Im\V2\Controller\Chat;
 
use Bitrix\Im\V2\Chat;
use Bitrix\Im\V2\Controller\BaseController;
use Bitrix\Im\V2\Link\Pin\PinCollection;
use Bitrix\Im\V2\Link\Pin\PinService;
use Bitrix\Im\V2\Rest\RestAdapter;
 
class Pin extends BaseController
{
    public function tailAction(Chat $chat, array $filter = [], array $order = [], int $limit = 50): ?array
    {
        $pinFilter = [
            'LAST_ID' => $filter['lastId'] ?? null,
            'CHAT_ID' => $chat->getChatId(),
            'START_ID' => $chat->getStartId() ?: null,
        ];
        $pinOrder = [
            'ID' => $order['id'] ?? 'DESC'
        ];
        $pinLimit = $this->getLimit($limit);
 
        $pins = PinCollection::find($pinFilter, $pinOrder, $pinLimit);
 
        return (new RestAdapter($pins))->toRestFormat();
    }
 
    public function countAction(Chat $chat): ?array
    {
        return [
            'counter' => (new PinService())->getCount($chat->getChatId(), $chat->getStartId())
        ];
    }
}