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<?php |
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declare(strict_types=1); |
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/** |
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* Copyright (c) Andreas Heigl<[email protected]> |
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* |
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* Licensed under the MIT-license. For details see the included file LICENSE.md |
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*/ |
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namespace Org_Heigl\Holidaychecker; |
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use DateTime; |
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use DateTimeImmutable; |
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use DateTimeInterface; |
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use IntlCalendar; |
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class CalendarDay |
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{ |
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/** @var int */ |
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private $day; |
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/** @var int */ |
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private $month; |
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/** @var int|null */ |
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private $year = null; |
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/** @var IntlCalendar */ |
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private $calendar; |
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public function __construct(int $day, int $month, IntlCalendar $calendar) |
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{ |
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$this->day = $day; |
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$this->month = $month; |
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$this->calendar = $calendar; |
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$this->calendar->set(IntlCalendar::FIELD_DAY_OF_MONTH, $day); |
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$this->calendar->set(IntlCalendar::FIELD_MONTH, $month - 1); |
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$this->calendar->set(IntlCalendar::FIELD_HOUR_OF_DAY, 12); |
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$this->calendar->set(IntlCalendar::FIELD_MINUTE, 0); |
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$this->calendar->set(IntlCalendar::FIELD_SECOND, 0); |
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$this->calendar->set(IntlCalendar::FIELD_MILLISECOND, 0); |
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} |
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public function setYear(int $year): void |
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{ |
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$this->year = $year; |
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$this->calendar->set(IntlCalendar::FIELD_YEAR, $year); |
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} |
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public function setGregorianYear(int $year): void |
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{ |
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$calendarYear = (int) $this->calendar->toDateTime()->format('Y'); |
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$diff = $year - $calendarYear; |
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$realYear = $this->calendar->get(IntlCalendar::FIELD_YEAR); |
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$this->year = $realYear + $diff; |
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$this->calendar->add(IntlCalendar::FIELD_YEAR, $diff); |
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} |
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public static function setGregorianYearForDate(int $year, IntlCalendar $calendar): IntlCalendar |
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{ |
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$datetime = $calendar->toDateTime(); |
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$yearDiff = $year - (int) $datetime->format('Y'); |
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$calendar->set(IntlCalendar::FIELD_YEAR, $calendar->get(IntlCalendar::FIELD_YEAR) + $yearDiff); |
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if ($calendar->toDateTime()->format('Y') < $year) { |
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$calendar->set(IntlCalendar::FIELD_YEAR, $calendar->get(IntlCalendar::FIELD_YEAR) + 1); |
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} |
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if ($calendar->toDateTime()->format('Y') > $year) { |
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$calendar->set(IntlCalendar::FIELD_YEAR, $calendar->get(IntlCalendar::FIELD_YEAR) - 1); |
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} |
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return $calendar; |
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} |
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public function isSameDay(DateTimeInterface $dateTime): bool |
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{ |
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$cal = clone $this->calendar; |
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$cal->setTime($dateTime->getTimestamp() * 1000); |
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if (null !== $this->year && |
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$cal->get(IntlCalendar::FIELD_YEAR) !== $this->calendar->get(IntlCalendar::FIELD_YEAR) |
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) { |
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return false; |
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} |
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if ($cal->get(IntlCalendar::FIELD_MONTH) !== $this->calendar->get(IntlCalendar::FIELD_MONTH)) { |
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return false; |
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} |
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return $cal->get(IntlCalendar::FIELD_DAY_OF_MONTH) === $this->calendar->get(IntlCalendar::FIELD_DAY_OF_MONTH); |
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} |
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public function isFollowUpDay(DateTimeInterface $dateTime, string $followUpDay): bool |
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{ |
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if ($dateTime instanceof DateTime) { |
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$dateTime = DateTimeImmutable::createFromMutable($dateTime); |
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} |
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return $this->isModifiedDate($dateTime, $followUpDay, 'next'); |
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} |
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public function isPreviousDay(DateTimeInterface $dateTime, string $previousDay): bool |
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{ |
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if ($dateTime instanceof DateTime) { |
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$dateTime = DateTimeImmutable::createFromMutable($dateTime); |
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} |
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return $this->isModifiedDate($dateTime, $previousDay, 'previous'); |
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} |
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private function isModifiedDate(DateTimeImmutable $dateTime, string $modifiedDay, string $direction): bool |
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{ |
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$cal = clone $this->calendar; |
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$cal = self::setGregorianYearForDate((int) $dateTime->format('Y'), $cal); |
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$day = $cal->toDateTime(); |
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$day->modify($direction . ' ' . $modifiedDay); |
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$cal->setTime($day->getTimestamp() * 1000); |
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$cal2 = clone $this->calendar; |
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$cal2->setTime($dateTime->getTimestamp() * 1000); |
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if (null !== $this->year && $cal->get(IntlCalendar::FIELD_YEAR) !== $cal2->get(IntlCalendar::FIELD_YEAR)) { |
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return false; |
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} |
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if ($cal->get(IntlCalendar::FIELD_MONTH) !== $cal2->get(IntlCalendar::FIELD_MONTH)) { |
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return false; |
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} |
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return $cal->get(IntlCalendar::FIELD_DAY_OF_MONTH) === $cal2->get(IntlCalendar::FIELD_DAY_OF_MONTH); |
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} |
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public function getWeekdayForGregorianYear(int $year): int |
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{ |
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$cal = $this->getDayForGregorianYear($year); |
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return $cal->get(IntlCalendar::FIELD_DAY_OF_WEEK); |
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} |
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private function getDayForGregorianYear(int $gregorianYear): IntlCalendar |
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{ |
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$cal = clone $this->calendar; |
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$cal->set(IntlCalendar::FIELD_MONTH, $this->month - 1); |
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$cal->set(IntlCalendar::FIELD_DAY_OF_MONTH, $this->day); |
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$cal = self::setGregorianYearForDate($gregorianYear, $cal); |
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return $cal; |
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} |
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} |
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heiglandreas /
holidayChecker
