'use strict' // Node 4.x workaround

const express = require('express')
const http = require('http')

const socketIo = require('socket.io')
const socketio_jwt = require('../../lib')

const jwt = require('jsonwebtoken')
const xtend = require('xtend')
const enableDestroy = require('server-destroy')

let sio

/**
 * This is an example server that shows how to do namespace authentication.
 *
 * The /admin namespace is protected by JWTs while the global namespace is public.
 */
exports.start = (callback) => {
  const options = {
    secret: 'aaafoo super sercret',
    timeout: 1000,
    handshake: false
  }

  const app = express()
  const server = http.createServer(app)
  sio = socketIo.listen(server)

  app.use(express.json())
  app.post('/login', (req, res) => {
    const profile = {
      first_name: 'John',
      last_name: 'Doe',
      email: 'john@doe.com',
      id: 123
    }

    // We are sending the profile inside the token
    const token = jwt.sign(profile, options.secret, { expiresIn: 60 * 60 * 5 })
    res.json({ token: token })
  })

  // Global namespace (public)
  sio.on('connection', (socket) => {
    socket.emit('hi')
  })

  // Second roundtrip
  const admin_nsp = sio.of('/admin')

  admin_nsp
    .on('connection', socketio_jwt.authorize(options))
    .on('authenticated', (socket) => {
      socket.emit('hi admin')
    })

  // One roundtrip
  const admin_nsp_hs = sio.of('/admin_hs')

  admin_nsp_hs.use(socketio_jwt.authorize(xtend(options, { handshake: true })))
  admin_nsp_hs.on('connection', (socket) => {
    socket.emit('hi admin')
  })

  server.listen(9000, callback)
  enableDestroy(server)
}

exports.stop = (callback) => {
  sio.close()
  try {
    server.destroy()
  } catch (er) {}
  callback()
}