// load dependencies
const express = require('express')
const bodyParser = require('body-parser')
const siofu = require('socketio-file-upload')
const expressHandlebars = require('express-handlebars')
const Handlebars = require('handlebars')
const config = require('config')
const ua = require('universal-analytics')

const googleAnalyticsId = config.get('AnalyticsConfig.googleId')
const hostedContentPath = config.get('Database.PublishUploadPath')

// set port
const PORT = 3000
// initialize express app
const app = express()
// require our models for syncing
const db = require('./models')

// make express look in the public directory for assets (css/js/img)
app.use(express.static(`${__dirname}/public`))

// configure express app
app.use(bodyParser.json()) // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true })) // for parsing application/x-www-form-urlencoded
app.use(siofu.router)

// configure handlebars & register it with Express app
const hbs = expressHandlebars.create({
  defaultLayout: 'main', // sets the default layout
  handlebars   : Handlebars, // includes basic handlebars for access to that library
  helpers      : {
    // define any extra helpers you may need
    googleAnalytics () {
      const googleApiKey = config.get('AnalyticsConfig.googleId')
      return new Handlebars.SafeString(
        `<script>
        (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
        })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
        ga('create', '${googleApiKey}', 'auto');
        ga('send', 'pageview');
        </script>`
      )
    },
  },
})
app.engine('handlebars', hbs.engine)
app.set('view engine', 'handlebars')

// require express routes
require('./routes/api-routes.js')(app)
require('./routes/show-routes.js')(app, ua, googleAnalyticsId)
require('./routes/serve-routes.js')(app, ua, googleAnalyticsId)
require('./routes/home-routes.js')(app)

// require socket.io routes
const http = require('./routes/sockets-routes.js')(app, siofu, hostedContentPath, ua, googleAnalyticsId)

// sync sequelize
// wrap the server in socket.io to intercept incoming sockets requests
// start server
db.sequelize.sync({}).then(() => {
  http.listen(PORT, () => {
    console.log(`Listening on PORT ${PORT}`)
  })
})