<?php

namespace Facile\JoseVerifier\JWK;

use Psr\SimpleCache\CacheInterface;

use function is_array;
use function is_string;
use function json_decode;
use function json_encode;

/**
 * @psalm-import-type JWKSetObject from \Facile\JoseVerifier\Psalm\PsalmTypes
 */
class CachedJwksProvider implements JwksProviderInterface
{
    /** @var JwksProviderInterface */
    private $provider;

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

    /** @var string */
    private $cacheKey;

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

    public function __construct(JwksProviderInterface $provider, CacheInterface $cache, string $cacheKey, ?int $ttl)
    {
        $this->provider = $provider;
        $this->cache = $cache;
        $this->cacheKey = $cacheKey;
        $this->ttl = $ttl;
    }

    public function getJwks(): array
    {
        /** @var null|string $cached */
        $cached = $this->cache->get($this->cacheKey);

        if (is_string($cached)) {
            /** @var null|JWKSetObject $jwks */
            $jwks = json_decode($cached, true);

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

        $jwks = $this->provider->getJwks();
        $this->cache->set($this->cacheKey, json_encode($jwks), $this->ttl);

        return $jwks;
    }

    /**
     * @inheritDoc
     */
    public function reload(): JwksProviderInterface
    {
        $this->cache->delete($this->cacheKey);

        return $this;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTg5NzEwNDUwMjc0NzEzNyAzMDQ5NjM1NjgxMTIzNDAwIDIwMTIxODQ0MDg0OTA5NTk=