// Echo Endpoint
'use strict';

const express = require('express');
const app = express();

app.get('/echo/:what', (req, res) => {
    res.json({
      host: req.hostname,
      query: req.query,
      params: req.params
      });
  });


// listen for requests :)
app.listen(process.env.PORT || 8080, () => console.log(
  `Your app is listening on port ${process.env.PORT || 8080}`));

// ==================================
// Mad lib generator
'use strict';

const express = require('express');
const app = express();

const doMadLib = (argument) => {
  const {adjective1, adjective2, adjective3, adverb, name, noun, place} = argument;
  return (
  `There's a ${adjective1} new ${name} in ${place} and everyone's ` +
  `talking. Stunningly ${adjective2} and ${adverb} ${adjective3}, all the cool kids know it.` +
  `However, ${name} has a secret - ${name}'s a vile vampire. \n` +
  `Will it end with a bite, or with a stake through the ${noun}?`);
};


app.get('/', (req, res) => res.send(doMadLib(req.query)));

// listen for requests :)
app.listen(process.env.PORT || 8080, () => console.log(
  `Your app is listening on port ${process.env.PORT || 8080}`));

// ==================================
// A/B
'use strict';

const express = require('express');
const cParser = require('cookie-parser');

const app = express();
const AB_COOKIE_NAME = 'a-b-test';

app.use(cParser());
app.use(express.static('public'));


const accessAb = () => ['a', 'b'][Math.floor(Math.random() * 2)];
app.get('/', (req, res) => {
  const cookie = req.cookies[AB_COOKIE_NAME];
  if (cookie === undefined) {
    res.cookie(AB_COOKIE_NAME, accessAb(), {});
  }
  res.sendFile(__dirname + '/views/index.html');
});


// listen for requests :)
app.listen(process.env.PORT || 8080, () => console.log(
  `Your app is listening on port ${process.env.PORT || 8080 }`));