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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/value-object project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\ValueObject; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\InvalidArgumentException; |
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use Daikon\Interop\MakeEmptyInterface; |
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use DateTimeImmutable; |
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use DateTimeZone; |
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final class Timestamp implements MakeEmptyInterface, ValueObjectInterface |
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{ |
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public const NATIVE_FORMAT = 'Y-m-d\TH:i:s.uP'; |
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private ?DateTimeImmutable $value; |
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public static function now(): self |
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{ |
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return new self(new DateTimeImmutable); |
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} |
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public static function epoch(): self |
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{ |
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return new self((new DateTimeImmutable)->setTimestamp(0)); |
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} |
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/** @param int|string $time */ |
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public static function fromTime($time): self |
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{ |
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Assertion::integerish($time, 'Unix time must be an integer.'); |
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Assertion::greaterOrEqualThan((int)$time, 0, 'Unix time must be greater or equal than 0.'); |
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return new self(new DateTimeImmutable("@$time")); |
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} |
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public static function makeEmpty(): self |
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{ |
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return new self; |
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} |
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public function toTime(): int |
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{ |
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Assertion::false($this->isEmpty(), 'Cannot convert null to time.'); |
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/** @psalm-suppress PossiblyNullReference */ |
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return $this->value->getTimestamp(); |
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} |
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public static function fromString(string $date, string $format = self::NATIVE_FORMAT): self |
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{ |
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if ($date === 'now') { |
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return self::now(); |
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} |
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if ($date === 'epoch') { |
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return self::epoch(); |
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} |
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if (is_numeric($date)) { |
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$format = strpos($date, '.') ? 'U.u' : 'U'; |
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} |
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if (!$dateTime = DateTimeImmutable::createFromFormat($format, $date)) { |
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$time = strtotime($date); |
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if ($time === false || !$dateTime = new DateTimeImmutable('@'.$time)) { |
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throw new InvalidArgumentException('Invalid date string given to '.self::class); |
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} |
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} |
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return new self($dateTime); |
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} |
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/** @param null|string $value */ |
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public static function fromNative($value): self |
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{ |
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Assertion::nullOrString($value, 'Trying to create Timestamp VO from unsupported value type.'); |
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return empty($value) || $value === 'null' ? new self : self::fromString($value); |
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} |
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public function toNative(): ?string |
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{ |
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return is_null($this->value) ? null : $this->value->format(self::NATIVE_FORMAT); |
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} |
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/** @param self $comparator */ |
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public function equals($comparator): bool |
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{ |
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Assertion::isInstanceOf($comparator, self::class); |
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return $this->toNative() === $comparator->toNative(); |
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} |
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public function isEmpty(): bool |
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{ |
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return $this->value === null; |
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} |
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public function isBefore(self $comparand): bool |
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{ |
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if ($this->isEmpty()) { |
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return true; |
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} elseif ($comparand->isEmpty()) { |
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return false; |
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} else { |
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return $this->value < DateTimeImmutable::createFromFormat(self::NATIVE_FORMAT, (string)$comparand); |
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} |
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} |
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public function isAfter(self $comparand): bool |
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{ |
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if ($this->isEmpty()) { |
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return false; |
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} elseif ($comparand->isEmpty()) { |
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return true; |
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} else { |
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return $this->value > DateTimeImmutable::createFromFormat(self::NATIVE_FORMAT, (string)$comparand); |
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} |
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} |
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/** @param string $interval */ |
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public function modify($interval): self |
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{ |
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Assertion::false($this->isEmpty(), 'Cannot modify null Timestamp.'); |
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Assertion::string($interval); |
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Assertion::notEmpty($interval); |
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/** @psalm-suppress PossiblyNullReference */ |
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$modified = $this->value->modify($interval); |
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Assertion::isInstanceOf($modified, DateTimeImmutable::class, 'Invalid modification interval.'); |
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return new self($modified); |
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} |
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public function __toString(): string |
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{ |
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return $this->toNative() ?? 'null'; |
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} |
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private function __construct(DateTimeImmutable $value = null) |
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{ |
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$this->value = $value ? $value->setTimezone(new DateTimeZone('UTC')) : $value; |
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} |
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} |
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daikon-cqrs /
value-object
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