StorageController::storeUsagePerDay

private function storeUsagePerDay()
{
	if(!$this->request->getCookie(self::COOKIE_DISK_USAGE))
	{
		[$y, $m, $d] = explode('-', date('Y-m-d'));

		//end of current day;
		$this->getApplication()->set_cookie(self::COOKIE_DISK_USAGE, 'Y', mktime(0, 0, 0, $m, $d + 1, $y));

		$event = new Event(Driver::INTERNAL_MODULE_ID, self::EVENT_ON_AFTER_DISK_FIRST_USAGE_BY_DAY);
		$event->send();

		return true;
	}
	return false;
}