<?php
declare(strict_types=1);
namespace Beste\Clock;
use Beste\Clock;
use DateTimeImmutable;
use DateTimeZone;
use Psr\Clock\ClockInterface;
final class FrozenClock implements Clock
{
private DateTimeImmutable $frozenAt;
private function __construct(DateTimeImmutable $frozenAt)
{
$this->frozenAt = $frozenAt;
}
public static function at(DateTimeImmutable $time): self
{
return new self($time);
}
public static function withNowFrom(ClockInterface $clock): self
{
return new self($clock->now());
}
public static function fromUTC(): self
{
return new self(new DateTimeImmutable('now', new DateTimeZone('UTC')));
}
public function setTo(DateTimeImmutable $time): self
{
$this->frozenAt = $time;
return $this;
}
public function now(): DateTimeImmutable
{
return clone $this->frozenAt;
}
}