<?php
namespace Google\AccessToken;
/**
 *
 * @package JMAP::FRAMEWORK::administrator::components::com_jmap
 * @subpackage framework
 * @subpackage google
 * @author Joomla! Extensions Store
 * @copyright (C) 2021 - Joomla! Extensions Store
 * @license GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html
 */
defined ( '_JEXEC' ) or die ();

use Google\Auth\HttpHandler\HttpHandlerFactory;
use Google\Client;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Psr7;
use GuzzleHttp\Psr7\Request;

/**
 * Wrapper around Google Access Tokens which provides convenience functions
 *
 */
class Revoke
{
  /**
   * @var ClientInterface The http client
   */
  private $http;

  /**
   * Instantiates the class, but does not initiate the login flow, leaving it
   * to the discretion of the caller.
   */
  public function __construct(ClientInterface $http = null)
  {
    $this->http = $http;
  }

  /**
   * Revoke an OAuth2 access token or refresh token. This method will revoke the current access
   * token, if a token isn't provided.
   *
   * @param string|array $token The token (access token or a refresh token) that should be revoked.
   * @return boolean Returns True if the revocation was successful, otherwise False.
   */
  public function revokeToken($token)
  {
    if (is_array($token)) {
      if (isset($token['refresh_token'])) {
        $token = $token['refresh_token'];
      } else {
        $token = $token['access_token'];
      }
    }

    $body = Psr7\stream_for(http_build_query(array('token' => $token)));
    $request = new Request(
        'POST',
        Client::OAUTH2_REVOKE_URI,
        [
          'Cache-Control' => 'no-store',
          'Content-Type'  => 'application/x-www-form-urlencoded',
        ],
        $body
    );

    $httpHandler = HttpHandlerFactory::build($this->http);

    $response = $httpHandler($request);

    return $response->getStatusCode() == 200;
  }
}
