app.js

const http = require('http')
const createError = require('http-errors')
const express = require('express')
const path = require('path')
const cookieParser = require('cookie-parser')
const session = require('express-session')
const logger = require('morgan')
const exphbs = require('express-handlebars')

const socketApi = require('./socketapi')

const indexRouter = require('./routes/index')
const Application = require('./application/Application')

const GamesRepository = require('./application/GameRepository')
const EventBus = require('./application/EventBus')
const StatsRepository = require('./application/StatsRepository')
const EventRepository = require('./application/EventRepository')

const games = GamesRepository()
const stats = StatsRepository()
const events = EventRepository()
const delay = (handler, timeout) => setTimeout(handler, timeout)
const { publish, subscribe } = EventBus()
const application = Application({
  games,
  stats,
  publish,
  subscribe,
  events,
  delay,
})

const app = express()

// view engine setup
app.engine('handlebars', exphbs())
app.set('views', path.join(__dirname, 'web', 'views'))
app.set('view engine', 'handlebars')

app.use(logger('dev'))
app.use(express.json())
app.use(express.urlencoded({ extended: false }))
app.use(cookieParser())
app.use(
  session({
    secret: 'Shh, its a secret!',
    resave: false,
    saveUninitialized: false,
  })
)
app.use(express.static(path.join(__dirname, 'web', 'public')))
app.use(express.static(path.join(__dirname, 'web', 'dist')))

app.use('/', indexRouter)
app.use('/games', require('./routes/game_web').init(application))
app.use('/api/games', require('./routes/game_api').init(application))

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404))
})

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message
  res.locals.error = req.app.get('env') === 'development' ? err : {}

  // render the error page
  res.status(err.status || 500)
  res.render('error')
})

const port = process.env.PORT || '3000'
app.set('port', port)

const server = http.createServer(app)
const socket = socketApi.init(server, events, application)
subscribe('*', socket.publish)

module.exports = { server, port }