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1<?php
2
3declare(strict_types=1);
4
5namespace LambdaTwelve\OneRecord\Testing;
6
7use DateTimeImmutable;
8use Psr\Clock\ClockInterface;
9
10final class FixedClock implements ClockInterface
11{
12    private DateTimeImmutable $now;
13
14    public function __construct(string|DateTimeImmutable $now = '2026-10-02T12:00:00Z')
15    {
16        $this->now = $now instanceof DateTimeImmutable ? $now : new DateTimeImmutable($now);
17    }
18
19    public function now(): DateTimeImmutable
20    {
21        return $this->now;
22    }
23
24    public function advance(string $interval): void
25    {
26        $this->now = $this->now->modify($interval);
27    }
28
29    /**
30     * Jumps to an absolute instant: expiry boundaries, "a year later".
31     */
32    public function set(string|DateTimeImmutable $now): void
33    {
34        $this->now = $now instanceof DateTimeImmutable ? $now : new DateTimeImmutable($now);
35    }
36}