business\Business::getClosestDateBefore PHP Method

    private function getClosestDateBefore(\DateTime $date)
    {
        $tmpDate = clone $date;
        $dayOfWeek = (int) $tmpDate->format('N');
        $time = Time::fromDate($tmpDate);
        if (!$this->holidays->isHoliday($tmpDate) && null !== ($day = $this->getDay($dayOfWeek))) {
            if (null !== ($closestTime = $day->getClosestOpeningTimeBefore($time, $tmpDate))) {
                $tmpDate->setTime($closestTime->getHours(), $closestTime->getMinutes(), $closestTime->getSeconds());
                return $tmpDate;
            }
        }
        $tmpDate = $this->getDateBefore($tmpDate);
        while ($this->holidays->isHoliday($tmpDate)) {
            $tmpDate = $this->getDateBefore($tmpDate);
        }
        $closestDay = $this->getClosestDayBefore((int) $tmpDate->format('N'));
        $closingTime = $closestDay->getClosingTime($tmpDate);
        $tmpDate->setTime($closingTime->getHours(), $closingTime->getMinutes(), $closingTime->getSeconds());
        return $tmpDate;
    }