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<?php |
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/** |
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* Copyright Andreas Heigl <[email protected]> |
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* |
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* Licenses under the MIT-license. For details see the included file LICENSE.md |
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*/ |
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declare(strict_types=1); |
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namespace Org_Heigl\Holidaychecker; |
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use DateTimeInterface; |
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use IntlCalendar; |
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use RuntimeException; |
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use UnexpectedValueException; |
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use function method_exists; |
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use function sprintf; |
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use function strtolower; |
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final class GregorianWeekday |
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{ |
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/** @var string */ |
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private $value; |
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/** @var array<string, GregorianWeekday> */ |
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private static $instances = []; |
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private const MONDAY = 'monday'; |
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private const TUESDAY = 'tuesday'; |
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private const WEDNESDAY = 'wednesday'; |
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private const THURSDAY = 'thursday'; |
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private const FRIDAY = 'friday'; |
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private const SATURDAY = 'saturday'; |
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private const SUNDAY = 'sunday'; |
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private function __construct(string $value) |
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{ |
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$this->value = $value; |
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} |
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public function getValue(): string |
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{ |
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return $this->value; |
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} |
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public static function monday(): self |
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{ |
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if (! isset(self::$instances[self::MONDAY])) { |
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self::$instances[self::MONDAY] = new self(self::MONDAY); |
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} |
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return self::$instances[self::MONDAY]; |
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} |
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public static function tuesday(): self |
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{ |
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if (! isset(self::$instances[self::TUESDAY])) { |
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self::$instances[self::TUESDAY] = new self(self::TUESDAY); |
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} |
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return self::$instances[self::TUESDAY]; |
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} |
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public static function wednesday(): self |
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{ |
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if (! isset(self::$instances[self::WEDNESDAY])) { |
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self::$instances[self::WEDNESDAY] = new self(self::WEDNESDAY); |
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} |
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return self::$instances[self::WEDNESDAY]; |
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} |
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public static function thursday(): self |
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{ |
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if (! isset(self::$instances[self::THURSDAY])) { |
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self::$instances[self::THURSDAY] = new self(self::THURSDAY); |
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} |
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return self::$instances[self::THURSDAY]; |
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} |
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public static function friday(): self |
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{ |
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if (! isset(self::$instances[self::FRIDAY])) { |
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self::$instances[self::FRIDAY] = new self(self::FRIDAY); |
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} |
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return self::$instances[self::FRIDAY]; |
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} |
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public static function saturday(): self |
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{ |
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if (! isset(self::$instances[self::SATURDAY])) { |
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self::$instances[self::SATURDAY] = new self(self::SATURDAY); |
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} |
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return self::$instances[self::SATURDAY]; |
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} |
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public static function sunday(): self |
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{ |
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if (! isset(self::$instances[self::SUNDAY])) { |
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self::$instances[self::SUNDAY] = new self(self::SUNDAY); |
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} |
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return self::$instances[self::SUNDAY]; |
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} |
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public static function fromString(string $weekday): self |
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{ |
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if (! method_exists(self::class, strtolower($weekday))) { |
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throw new RuntimeException(sprintf( |
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'Weekday "%s" is not known', |
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$weekday |
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)); |
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} |
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/** @var GregorianWeekday $gregorianWeekday */ |
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$gregorianWeekday = [self::class, strtolower($weekday)](); |
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return $gregorianWeekday; |
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} |
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public static function fromDateTimeInterface(DateTimeInterface $date): self |
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{ |
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return self::fromString($date->format('l')); |
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} |
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public static function fromIntlWeekday(int $weekday): self |
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{ |
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$mapper = [ |
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IntlCalendar::DOW_SUNDAY => 'sunday', |
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IntlCalendar::DOW_MONDAY => 'monday', |
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IntlCalendar::DOW_TUESDAY => 'tuesday', |
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IntlCalendar::DOW_WEDNESDAY => 'wednesday', |
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IntlCalendar::DOW_THURSDAY => 'thursday', |
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IntlCalendar::DOW_FRIDAY => 'friday', |
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IntlCalendar::DOW_SATURDAY => 'saturday', |
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]; |
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if (! isset($mapper[$weekday])) { |
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throw new UnexpectedValueException(sprintf( |
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'IntlCalendar weekday %s could not be resolved', |
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$weekday |
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)); |
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} |
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return self::fromString($mapper[$weekday]); |
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} |
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public function __toString(): string |
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{ |
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return $this->getValue(); |
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} |
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} |
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heiglandreas /
holidayChecker
