<?php

declare(strict_types=1);

namespace Facile\OpenIDClient\Service;

use Facile\OpenIDClient\Client\ClientInterface as OpenIDClient;
use Facile\OpenIDClient\Exception\RuntimeException;
use function Facile\OpenIDClient\get_endpoint_uri;
use function Facile\OpenIDClient\parse_metadata_response;
use Psr\Http\Client\ClientExceptionInterface;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestFactoryInterface;

/**
 * RFC 7662 Token Introspection
 *
 * @link https://tools.ietf.org/html/rfc7662 RFC 7662
 */
final class IntrospectionService
{
    /** @var ClientInterface */
    private $client;

    /** @var RequestFactoryInterface */
    private $requestFactory;

    public function __construct(
        ClientInterface $client,
        RequestFactoryInterface $requestFactory
    ) {
        $this->client = $client;
        $this->requestFactory = $requestFactory;
    }

    /**
     * @param array<string, mixed> $params
     *
     * @return array<string, mixed>
     */
    public function introspect(OpenIDClient $client, string $token, array $params = []): array
    {
        $endpointUri = get_endpoint_uri($client, 'introspection_endpoint');

        $authMethod = $client->getAuthMethodFactory()
            ->create($client->getMetadata()->getIntrospectionEndpointAuthMethod());

        $tokenRequest = $this->requestFactory->createRequest('POST', $endpointUri)
            ->withHeader('content-type', 'application/x-www-form-urlencoded');

        $params += [
            'token' => $token,
            'aud' => $client->getIssuer()->getMetadata()->getIntrospectionEndpoint(),
        ];
        $tokenRequest = $authMethod->createRequest($tokenRequest, $client, $params);

        $httpClient = $client->getHttpClient() ?? $this->client;

        try {
            $response = $httpClient->sendRequest($tokenRequest);
        } catch (ClientExceptionInterface $e) {
            throw new RuntimeException('Unable to get introspection response', 0, $e);
        }

        return parse_metadata_response($response, 200);
    }
}__halt_compiler();----SIGNATURE:----qwZl7cZpEr7jEfRXygw13jqo/vECgLHzO5QssEOXlVrxqxI/UQ5N0Z1dUxsxg1en+oTcPdBlHEP5X8SWTsM85p5Mx7V1UKAgoRjPCFywq2B63rOftzK8rrrfdH9wSbrsM/oJAMOHAnhc0xYJzZKJ8Q5/kzgl6OrYn3CkkAmj0hyblIntCJA7el4HnphhOYPt8qEiUeJTc039IpBkakY7uVniyaEltEIqM1vyyMT9Phefp1oZ5BQXS1gFebsdHVI16P6EhCgQ+bsMLGqPwalwBNgMUVXEQ8KKEXnm5wxDdtJt/qV1ruUvw17+nKfeAc45BgEhCT1DtnOMNYlQU77Uj7iRtYe9vt4S/o9R81Bm8YvIyuhY6615Dh0sUUo7DKp7Ri0HWDfUsS3MkL8MhW2v/lEejSwt3P4jkhAyqt5IKC3X09sLz/jXmxMONTK59bihRwo4shRAtemBtt5QyGVe+ZPM9Ek5enYK4vlKK3wrs3kJOry8ARAj1AgNjxHNgd41pbr+VTHbE2bTIh6/m3RoaBsfCI2TYdg7ZmAXj3OXwEj0J6fbs8u033JIDcoIGZkuMI6guCC99p7vUO0BuQJCWrH7eXLLKtCjUkMBcxUlGZR1YGtAhgk5LVJ54oPO6xgpFLpoc1+9ZY6whjvasNjbGWkgIk3aWdcrOLQl0jpvq/c=----ATTACHMENT:----NTM3MDA2NzE0MDkwNTcxNiA3NDA2OTE2NDQyMDk1MDAzIDc0MzUzOTc4Njc4NjI5NjM=