<?php

namespace App\Hydra;

use App\Hydra\Exception\InvalidChallengeException;
use Exception;
use Symfony\Contracts\HttpClient\HttpClientInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;

class Client
{
    private HttpClientInterface $client;
    private const MAX_RETRY = 3;
    private const SLEEP_TIME = [
        5,
        500,
        5000,
    ];
    private string $hydraAdminBaseUrl;

    public function __construct(HttpClientInterface $client, string $hydraAdminBaseUrl)
    {
        $this->client = $client;
        $this->hydraAdminBaseUrl = $hydraAdminBaseUrl;
    }

    public function fetchLoginRequestInfo(string $loginChallenge): ResponseInterface
    {
        $response = $this->client->request(
            'GET',
            $this->hydraAdminBaseUrl.'/oauth2/auth/requests/login',
            [
                'query' => [
                    'login_challenge' => $loginChallenge,
                ],
            ]
        );

        switch ($response->getStatusCode()) {
            case 404:
                throw new InvalidChallengeException();
        }

        return $response;
    }

    public function fetchLogoutRequestInfo(string $logoutChallenge): ResponseInterface
    {
        $response = $this->client->request(
            'GET',
            $this->hydraAdminBaseUrl.'/oauth2/auth/requests/logout',
            [
                'query' => [
                    'logout_challenge' => $logoutChallenge,
                ],
            ]
        );

        switch ($response->getStatusCode()) {
            case 404:
                throw new InvalidChallengeException();
        }

        return $response;
    }

    public function fetchConsentRequestInfo(string $consentChallenge): ResponseInterface
    {
        $attempt = 0;
        while ($attempt < self::MAX_RETRY) {
            $response = $this->client->request(
                'GET',
                $this->hydraAdminBaseUrl.'/oauth2/auth/requests/consent',
                [
                    'query' => [
                        'consent_challenge' => $consentChallenge,
                    ],
                ]
            );

            $status = $response->getStatusCode();
            if (503 === $status) {
                ++$attempt;
                usleep(1000 * self::SLEEP_TIME[$attempt] + rand(1, 5) * 1000);
                continue;
            }
            switch ($status) {
                case 404:
                    throw new InvalidChallengeException();
            }
            break;
        }
        if (self::MAX_RETRY === $attempt) {
            throw new Exception(sprintf('Fetch consent a rencontré une erreur %s après %s tentatives', $response->getStatusCode(), self::MAX_RETRY));
        }

        return $response;
    }

    public function acceptLoginRequest(string $loginChallenge, array $payload): ResponseInterface
    {
        $response = $this->client->request(
            'PUT',
            $this->hydraAdminBaseUrl.'/oauth2/auth/requests/login/accept',
            [
                'query' => [
                    'login_challenge' => $loginChallenge,
                ],
                'headers' => [
                    'Content-Type' => 'application/json',
                ],
                'body' => json_encode($payload),
            ]
        );

        return $response;
    }

    public function acceptConsentRequest(string $consentChallenge, array $payload): ResponseInterface
    {
        $response = $this->client->request(
            'PUT',
            $this->hydraAdminBaseUrl.'/oauth2/auth/requests/consent/accept',
            [
                'query' => [
                    'consent_challenge' => $consentChallenge,
                ],
                'headers' => [
                    'Content-Type' => 'application/json',
                ],
                'body' => json_encode($payload),
            ]
        );

        return $response;
    }

    public function acceptLogoutRequest(string $logoutChallenge): ResponseInterface
    {
        $response = $this->client->request(
            'PUT',
            $this->hydraAdminBaseUrl.'/oauth2/auth/requests/logout/accept',
            [
                'query' => [
                    'logout_challenge' => $logoutChallenge,
                ],
                'headers' => [
                    'Content-Type' => 'application/json',
                ],
            ]
        );

        return $response;
    }
}