62 lines
1.5 KiB
PHP
Executable File
62 lines
1.5 KiB
PHP
Executable File
<?php
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declare(strict_types=1);
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namespace Beste\Clock;
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use Beste\Clock;
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use DateTimeImmutable;
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use Psr\Clock\ClockInterface;
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final class WrappingClock implements Clock
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{
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private ClockInterface $wrappedClock;
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private function __construct(ClockInterface $wrappedClock)
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{
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$this->wrappedClock = $wrappedClock;
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}
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public static function wrapping(object $clock): self
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{
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if ($clock instanceof ClockInterface) {
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return new self($clock);
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}
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if (!method_exists($clock, 'now')) {
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throw new \InvalidArgumentException('$clock must implement StellaMaris\Clock\ClockInterface or have a now() method');
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}
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if (!($clock->now() instanceof DateTimeImmutable)) {
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throw new \InvalidArgumentException('$clock->now() must return a DateTimeImmutable');
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}
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$wrappedClock = new class($clock) implements ClockInterface {
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private object $clock;
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public function __construct(object $clock)
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{
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$this->clock = $clock;
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}
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public function now(): \DateTimeImmutable
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{
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assert(method_exists($this->clock, 'now'));
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$now = $this->clock->now();
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assert($now instanceof \DateTimeImmutable);
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return $now;
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}
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};
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return new self($wrappedClock);
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}
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public function now(): DateTimeImmutable
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{
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return $this->wrappedClock->now();
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}
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}
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