Chat::updateParentMessageCount

public function updateParentMessageCount(): self
{
	if (
		$this->getChatId()
		&& $this->getParentMessageId()
		&& $this->getMessageCount()
	)
	{
		$message = new Message($this->getParentMessageId());
		$message->getParams()
			->fill([
				Params::CHAT_MESSAGE => $this->getMessageCount(),
				Params::CHAT_LAST_DATE => new DateTime()
			])
			->save();

		CIMMessageParam::SendPull($this->getParentMessageId(), [Params::CHAT_MESSAGE, Params::CHAT_LAST_DATE]);
	}

	return $this;
}