const { send } = require('micro');
const microAuthTwitter = require('microauth-twitter');
const options = {
  consumerKey: 'CONSUMER_KEY',
  consumerSecret: 'CONSUMER_SECRET',
  callbackUrl: 'https://localhost:3000/auth/twitter/callback',
  path: '/auth/twitter'
};
const twitterAuth = microAuthTwitter(options);
// third `auth` argument will provide error or result of authentication
// so it will { err: errorObject} or { result: {
//  provider: 'twitter',
//  accessToken: 'blahblah',
//  accessTokenSecret: 'blahblah',
//  info: userInfo
// }}
const handler = async (req, res, auth) => {
  if (!auth) {
    return send(res, 404, 'Not Found');
  }
  if (auth.err) {
    // Error handler
    return send(res, 403, 'Forbidden');
  }
  // save something in database here
  return `Hello ${auth.result.info.screen_name}`;
};
module.exports = twitterAuth(handler);