<?php

namespace Facile\OpenIDClient\Issuer\Metadata\Provider;

use JsonException;
use Psr\SimpleCache\CacheInterface;

use function is_array;
use function json_decode;
use function json_encode;
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:----NjczMDEzMDQ3OTMxNDk5IDEwOTc1NzMyMTcwMTk2NzcgOTM0NzQwOTkwMTM3MjMwOA==