EntityActivities::getActivityStageIdByDeadlineAndIncoming

private function getActivityStageIdByDeadlineAndIncoming(?DateTime $deadline, bool $hasAnyIncomingChannel): string
{
	if ($deadline === null && !$hasAnyIncomingChannel)
	{
		return $this->getStatusIdByCategoryId(self::STAGE_IDLE, $this->categoryId);
	}

	$userDeadline = Datetime::createFromTimestamp($deadline->getTimestamp());
	$userDeadline->toUserTime();
	$userDeadlineDate = Date::createFromTimestamp($userDeadline->getTimestamp());

	$dateTime = $this->getUserCurrentDateTime(new DateTime());
	$userCurrentDate = Date::createFromTimestamp($dateTime->getTimestamp());
	if ($userCurrentDate->getTimestamp() > $userDeadlineDate->getTimestamp())
	{
		return $this->getStatusIdByCategoryId(self::STAGE_OVERDUE, $this->categoryId);
	}

	// today
	$userTomorrowDate = $this->getTomorrowDay($dateTime);
	if (($userTomorrowDate->getTimestamp() > $userDeadlineDate->getTimestamp()) || $hasAnyIncomingChannel)
	{
		return $this->getStatusIdByCategoryId(self::STAGE_PENDING, $this->categoryId);
	}

	// this week
	$userThisWeekDate = $this->getLastWeekDay($dateTime);
	if ($userThisWeekDate->getTimestamp() >= $userDeadlineDate->getTimestamp())
	{
		return $this->getStatusIdByCategoryId(self::STAGE_THIS_WEEK, $this->categoryId);
	}

	// next week
	$userNextWeekDate = Date::createFromTimestamp($userThisWeekDate->add('+7 days')->getTimestamp());
	if ($userNextWeekDate->getTimestamp() >= $userDeadlineDate->getTimestamp())
	{
		return $this->getStatusIdByCategoryId(self::STAGE_NEXT_WEEK, $this->categoryId);
	}

	return $this->getStatusIdByCategoryId(self::STAGE_LATER, $this->categoryId);
}