<?php

declare(strict_types=1);

namespace Facile\OpenIDClient\Issuer\Metadata\Provider;

use function is_array;
use function json_decode;
use function json_encode;
use JsonException;
use Psr\SimpleCache\CacheInterface;
use function sha1;
use function substr;

/**
 * @psalm-import-type IssuerMetadataObject from \Facile\JoseVerifier\Psalm\PsalmTypes
 */
final class CachedProviderDecorator implements RemoteProviderInterface
{
    /** @var RemoteProviderInterface */
    private $provider;

    /** @var CacheInterface */
    private $cache;

    /** @var null|int */
    private $cacheTtl;

    /**
     * @var callable
     *
     * @psalm-var callable(string): string
     */
    private $cacheIdGenerator;

    /**
     * @psalm-param null|callable(string): string $cacheIdGenerator
     */
    public function __construct(
        RemoteProviderInterface $provider,
        CacheInterface $cache,
        ?int $cacheTtl = null,
        ?callable $cacheIdGenerator = null
    ) {
        $this->provider = $provider;
        $this->cache = $cache;
        $this->cacheTtl = $cacheTtl;
        $this->cacheIdGenerator = $cacheIdGenerator ?? static fn (string $uri): string => substr(sha1($uri), 0, 65);
    }

    /**
     * @return array<string, mixed>
     *
     * @psalm-return IssuerMetadataObject
     *
     * @psalm-suppress MixedReturnTypeCoercion
     */
    public function fetch(string $uri): array
    {
        $cacheId = ($this->cacheIdGenerator)($uri);

        /** @var string $cached */
        $cached = $this->cache->get($cacheId) ?? '';

        try {
            /** @psalm-var null|string|IssuerMetadataObject $data */
            $data = json_decode($cached, true, 512, JSON_THROW_ON_ERROR);
        } catch (JsonException $e) {
            $data = null;
        }

        if (is_array($data)) {
            return $data;
        }

        $data = $this->provider->fetch($uri);

        $this->cache->set($cacheId, json_encode($data, JSON_THROW_ON_ERROR), $this->cacheTtl);

        return $data;
    }

    public function isAllowedUri(string $uri): bool
    {
        return $this->provider->isAllowedUri($uri);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTY2NzI5MzgxMjk1NTE2MiA0Nzk0NzM2NTgxODI4MjIzIDYxOTY4MTQ3NTAyMTE1NzE=