'use strict';

const querystring = require('querystring');

const REQUEST_TOKEN_URL = 'https://trello.com/1/OAuthGetRequestToken';
const ACCESS_TOKEN_URL = 'https://trello.com/1/OAuthGetAccessToken';
const AUTHORIZE_URL = 'https://trello.com/1/OAuthAuthorizeToken';

const getRequestToken = async (z, bundle) => {
  const response = await z.request({
    url: REQUEST_TOKEN_URL,
    method: 'POST',
    auth: {
      oauth_consumer_key: process.env.CLIENT_ID,
      oauth_consumer_secret: process.env.CLIENT_SECRET,
      oauth_signature_method: 'HMAC-SHA1',
      oauth_callback: bundle.inputData.redirect_uri,

      // oauth_version: '1.0' // sometimes required
    },
  });
  return querystring.parse(response.content);
};

const getAccessToken = async (z, bundle) => {
  const response = await z.request({
    url: ACCESS_TOKEN_URL,
    method: 'POST',
    auth: {
      oauth_consumer_key: process.env.CLIENT_ID,
      oauth_consumer_secret: process.env.CLIENT_SECRET,
      oauth_token: bundle.inputData.oauth_token,
      oauth_token_secret: bundle.inputData.oauth_token_secret,
      oauth_verifier: bundle.inputData.oauth_verifier,
    },
  });
  return querystring.parse(response.content);
};

// You want to make a request to an endpoint that is either specifically designed
// to test auth, or one that every user will have access to. eg: `/me`.
// By returning the entire request object, you have access to the request and
// response data for testing purposes. Your connection label can access any data
// from the returned response using the `json.` prefix. eg: `{{json.username}}`.
const test = (z, bundle) =>
  z.request({ url: 'https://api.trello.com/1/members/me/' });

module.exports = {
  // OAuth1 is an older form of OAuth
  type: 'oauth1',
  oauth1Config: {
    // We have to define getRequestToken and getAccessToken functions to explicitly
    // parse the response like it has a form body here, since Trello responds
    // 'text/plain' for the Content-Type header
    getRequestToken,
    getAccessToken,
    authorizeUrl: {
      url: AUTHORIZE_URL,
      params: {
        oauth_token: '{{bundle.inputData.oauth_token}}',
        name: 'Zapier/Trello OAuth1 Test',
      },
    },
  },

  // Define any input app's auth requires here. The user will be prompted to enter
  // this info when they connect their account.
  fields: [],

  // The test method allows Zapier to verify that the credentials a user provides
  // are valid. We'll execute this method whenever a user connects their account for
  // the first time.
  test,

  // This template string can access all the data returned from the auth test. If
  // you return the test object, you'll access the returned data with a label like
  // `{{json.X}}`. If you return `response.data` from your test, then your label can
  // be `{{X}}`. This can also be a function that returns a label. That function has
  // the standard args `(z, bundle)` and data returned from the test can be accessed
  // in `bundle.inputData.X`.
  connectionLabel: '{{username}}',
};