<?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:----NTY4MDAzODc4OTI4MTA2NiA1NDEzMDgxOTkxNjUwNzkwIDU2NzE1OTkwNzIyMDE3NjA=