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1<?php
2
3declare(strict_types=1);
4
5namespace Celemas\Sire;
6
7use Override;
8
9/** @api */
10final class RuleRegistry implements Contract\RuleRegistry
11{
12    /** @param array<string, Contract\Rule> $rules */
13    public function __construct(
14        private array $rules = [],
15        private ?Contract\RuleRegistry $fallback = null,
16    ) {}
17
18    public static function withDefaults(): self
19    {
20        return new self([], new DefaultRules());
21    }
22
23    public function with(string $name, Contract\Rule $rule): self
24    {
25        $rules = $this->rules;
26        $rules[$name] = $rule;
27
28        return new self($rules, $this->fallback);
29    }
30
31    /** @param array<string, Contract\Rule> $rules */
32    public function withMany(array $rules): self
33    {
34        $result = $this;
35
36        foreach ($rules as $name => $rule) {
37            $result = $result->with($name, $rule);
38        }
39
40        return $result;
41    }
42
43    #[Override]
44    public function get(string $name): ?Contract\Rule
45    {
46        if (array_key_exists($name, $this->rules)) {
47            return $this->rules[$name];
48        }
49
50        return $this->fallback?->get($name);
51    }
52}