<?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:----NTM1MjI4NTg0NjE3NjcyOCA3MzY2ODU1NTI0MTc4NDkyIDg5NDAyMzk0NjE4NDI0NzM=