uno-online/server.js

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const express = require('express')
const socketio = require('socket.io')
const http = require('http')
const cors = require('cors')
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const { addUser, removeUser, getUser, getUsersInRoom } = require('./users')
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const path = require('path')
const PORT = process.env.PORT || 5000
const app = express()
const server = http.createServer(app)
const io = socketio(server)
app.use(cors())
io.on('connection', socket => {
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socket.on('join', (payload, callback) => {
let numberOfUsersInRoom = getUsersInRoom(payload.room).length
const { error, newUser} = addUser({
id: socket.id,
name: numberOfUsersInRoom===0 ? 'Player 1' : 'Player 2',
room: payload.room
})
if(error)
return callback(error)
socket.join(newUser.room)
io.to(newUser.room).emit('roomData', {room: newUser.room, users: getUsersInRoom(newUser.room)})
socket.emit('currentUserData', {name: newUser.name})
callback()
})
socket.on('initGameState', gameState => {
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const user = getUser(socket.id)
if(user)
io.to(user.room).emit('initGameState', gameState)
})
socket.on('updateGameState', gameState => {
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const user = getUser(socket.id)
if(user)
io.to(user.room).emit('updateGameState', gameState)
})
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socket.on('sendMessage', (payload, callback) => {
const user = getUser(socket.id)
io.to(user.room).emit('message', {user: user.name, text: payload.message})
callback()
})
socket.on('disconnect', () => {
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const user = removeUser(socket.id)
if(user)
io.to(user.room).emit('roomData', {room: user.room, users: getUsersInRoom(user.room)})
})
})
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//serve static assets in production
if(process.env.NODE_ENV === 'production') {
//set static folder
app.use(express.static('client/build'))
app.get('*', (req, res) => {
res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'))
})
}
server.listen(PORT, () => {
console.log(`Server running on port ${PORT}`)
})