Chat::load

private function load(BitrixImV2Chat $chat, CurrentUser $user, int $messageLimit, int $pinLimit, ?Message $targetMessage = null): array
{
	$messageLimit = $this->getLimit($messageLimit);
	$pinLimit = $this->getLimit($pinLimit);
	$messageService = new MessageService($targetMessage ?? $chat->getLoadContextMessage());
	$messages = $messageService->getMessageContext($messageLimit, Message::REST_FIELDS)->getResult();
	$pins = PinCollection::find(
		['CHAT_ID' => $chat->getChatId(), 'START_ID' => $chat->getStartId() ?: null],
		['ID' => 'DESC'],
		$pinLimit
	);
	$restAdapter = new RestAdapter($chat, $messages, $pins);

	$rest = $restAdapter->toRestFormat();

	return $messageService->fillContextPaginationData($rest, $messages, $messageLimit);
}