<?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:----MjUxODEzNTEwNTMwNDU2NiAxODE3MDU2MDA2MTE2MDQyIDkyMDg0NTM5OTg1ODk1MjU=