FirstFormInvoice::checkMatchingDate

public function checkMatchingDate(Date $date)
{
	switch ($this->mode)
	{
		case Calculator::SALE_TYPE_DAY_OFFSET:
			return true;
			break;

		case Calculator::SALE_TYPE_WEEK_OFFSET:
			$weekdays = $this->map[self::FIELD_WEEKLY_WEEKDAYS];
			if (is_array($weekdays))
			{
				return in_array($date->format('N'), $weekdays);
			}
			break;

		case Calculator::SALE_TYPE_MONTH_OFFSET:
			if ($this->unitType === DateType\Month::TYPE_DAY_OF_ALTERNATING_MONTHS)
			{
				return (int)$date->format('j') === (int)$this->map[self::FIELD_MONTHLY_FIRST_TYPE_INTERVAL_DAY];
			}
			elseif ($this->unitType === DateType\Month::TYPE_WEEKDAY_OF_ALTERNATING_MONTHS)
			{
				if ((int)$date->format('N') !== (int)$this->map[self::FIELD_MONTHLY_SECOND_TYPE_WEEKDAY])
				{
					return false;
				}

				if ($this->map[self::FIELD_MONTHLY_SECOND_TYPE_WEEK_VALUE] === DateType\Month::LAST_WEEK_IN_MONTH_VALUE)
				{
					$currentMonth = $date->format('n');
					$date->add('1 week');
					return $currentMonth !== $date->format('n');
				}
				else
				{
					$weekValue = (int)(floor($date->format('j') / 7));
					return $weekValue === (int)$this->map[self::FIELD_MONTHLY_SECOND_TYPE_WEEK_VALUE];
				}
			}
			else
			{
				return true;
			}
			break;

		case Calculator::SALE_TYPE_YEAR_OFFSET:
			if ($this->unitType === DateType\Year::TYPE_DAY_OF_CERTAIN_MONTH)
			{
				if ((int)$date->format('j') !== (int)$this->map[self::FIELD_YEARLY_FIRST_TYPE_INTERVAL_DAY])
				{
					return false;
				}

				return (int)$date->format('n') === (int)$this->map[self::FIELD_YEARLY_FIRST_TYPE_INTERVAL_MONTH];
			}
			elseif ($this->unitType === DateType\Year::TYPE_WEEKDAY_OF_CERTAIN_MONTH)
			{
				if ((int)$date->format('N') !== (int)$this->map[self::FIELD_YEARLY_SECOND_TYPE_WEEKDAY])
				{
					return false;
				}

				if ((int)$date->format('n') !== (int)$this->map[self::FIELD_YEARLY_SECOND_TYPE_INTERVAL_MONTH])
				{
					return false;
				}

				if ((int)$this->map[self::FIELD_YEARLY_SECOND_TYPE_WEEK_VALUE] === DateType\Month::LAST_WEEK_IN_MONTH_VALUE)
				{
					$currentMonth = $date->format('n');
					$date->add('1 week');
					return $currentMonth !== $date->format('n');
				}
				else
				{
					$weekValue = (int)(floor($date->format('j') / 7));
					return ($weekValue === (int)$this->map[self::FIELD_YEARLY_SECOND_TYPE_WEEK_VALUE]);
				}
			}
			else
			{
				return true;
			}
			break;
	}

	return false;
}