CIMMessenger::GetUnreadCounter

static function GetUnreadCounter($userId)
{
	//todo return counters for user
	return (new BitrixImV2MessageCounterService($userId))->getForNotifyChat();
	//$count = 0;
	/*$userId = intval($userId);
	if ($userId <= 0)
		return $count;

	global $DB;

	$strSql ="
		SELECT M.ID, M.NOTIFY_TYPE, M.NOTIFY_TAG
		FROM b_im_message M
		INNER JOIN b_im_relation R1 ON M.ID > R1.LAST_ID AND M.CHAT_ID = R1.CHAT_ID AND R1.USER_ID != M.AUTHOR_ID
		WHERE R1.USER_ID = ".$userId."  AND R1.STATUS < ".IM_STATUS_READ."
	";

	$dbRes = $DB->Query($strSql, false, "File: ".__FILE__."
Line: ".__LINE__);

	$arGroupNotify = Array();
	while ($arRes = $dbRes->Fetch())
	{
		if ($arRes['NOTIFY_TYPE'] == 2 && $arRes['NOTIFY_TAG'] != '')
		{
			if (!isset($arGroupNotify[$arRes['NOTIFY_TAG']]))
			{
				$arGroupNotify[$arRes['NOTIFY_TAG']] = true;
				$count++;
			}
		}
		else
			$count++;
	}*/

	//return $count;
}