uber-home.js

'use latest';

const Twitter = require('twit');
const request = require('request');

let client;
let destination = 'destination';

// Generates random integer
const getRandomInt = (min, max) => {
  return ~~(Math.random() * (max - min + 1)) + min;
};

// Gets formatted address from latitude or longitude
// using the Google Maps API
const getAddress = (lat, long, cb) => {
  const url = `http://maps.googleapis.com/maps/api/geocode/json?latlng=${lat},${long}&sensor=false`;
  request(url, (error, response, body) => {
    
    if(error) console.log('Error while converting latitude or longitude: ', error);
    
    body = JSON.parse(body);

    // Verifies that there are results
    if (body.results.length !== 0) {
      const formattedAddress = body.results.shift().address_components.filter((el) => {
        return ~el.types.indexOf('route'); // Filters street name
      });
      destination = formattedAddress.shift().short_name;
    }
    
    sendTweet(cb);
  });
};

const sendTweet = (cb) => {
  const messages = [
    `Hey! I safely arrived to ${destination}.`,
    `Made it to ${destination}!`,
    `What a ride! I'm finally at ${destination}.`,
    `I just arrived at ${destination}.`
  ]; 
  
  client.post('statuses/update', { status: messages[getRandomInt(0, messages.length-1)] }, (err, data, response) => {
    if(err) console.log('Error while sending tweet: ', err);
    cb(null, 'Sucesss.');
  });
};

module.exports = (ctx, cb) => {
  client = new Twitter({
    consumer_key: ctx.secrets.TWITTER_CONSUMER_KEY,
    consumer_secret: ctx.secrets.TWITTER_CONSUMER_SECRET,
    access_token: ctx.secrets.TWITTER_ACCESS_TOKEN_KEY,
    access_token_secret: ctx.secrets.TWITTER_ACCESS_TOKEN_SECRET
  });
  
  getAddress(ctx.data.DropoffLat, ctx.data.DropoffLong, cb);
};