server.js

const express = require('express');
const app = express();
const server = require('http').createServer(app);

const socketIO = require('socket.io');

const path = require('path');
const { emit } = require('process');
const PORT = process.env.PORT || 9001;

app.use(express.static(path.join(__dirname, '/build')));
app.get('/', (req, res, next) => res.sendFile(__dirname + './index.html'));

const io = socketIO(server);

let values = {};
let activeValues = {};
let cpu = {};
let theme = "";
let rooms = [];
let chat = { lobby: [] };

io.on('connection', socket => {
  console.log(`${socket.id} connected`);

  let room;

  socket.on('victory', function(data){
    io.sockets.to(data.room).emit('winner', data.user);
    values[data.room] = [];
    activeValues[data.room] = [];
    theme = "";
    cpu[data.room] = false;
    rooms = rooms.filter(rm => rm.name !== data.room);
  });

  socket.on('new_game_room', roomData => {
    room = roomData.name;
    rooms.push(roomData);
    socket.join(room);
    activeValues[roomData.name] = [];
    chat[roomData.name] = [];
  });

  socket.on('get_rooms', () => {
    socket.emit('receive_rooms', rooms);
  });

  socket.on('join_room', roomName => {
    if(roomName === {}){
    socket.join(rooms[0]);
  } else {
    socket.join(roomName);
    console.log(roomName);
  };
  });

// BINGO Game Related Functionality

  socket.on('add', (data) => {
    if(activeValues[data.room] && !activeValues[data.room].find(val => val === data.value)){
      activeValues[data.room].push(data.value);
      io.sockets.to(data.room).emit('new', data.value, activeValues[data.room]);
    };
  });

  socket.on('check_cpu_status', (data) => {
    socket.emit('give_cpu_status', cpu[data]);
  });

  socket.on('cpu_running', (data) => {
    cpu[data] = true;
  });

  socket.on('cpu_dying', (data) => {
    cpu[data] = false;
  });

  // BANGO Game Functionality

  socket.on('set_theme', (data) => {
    theme = data;
  });

  socket.on('get_theme', () => {
    socket.emit('receive_theme', theme);
  });

  socket.on('add_values', (data) => {
    values[data.room] = data.values;
    activeValues[data.room] = [];
    io.sockets.to(data.room).emit('receive_values', values[data.room]);
  });

  socket.on('get_current_game_values', (data) => {
    socket.emit('receive_values', values[data.room]);
  });

  socket.on('add_bango_value', (data) => {
    if(activeValues[data.room]){
      activeValues[data.room].push(data.value);
      io.sockets.to(data.room).emit('new_bango_value', activeValues[data.room]);
    };
  });


  // Chat Functionality

  socket.on('get_chat', (roomName) => {
    socket.emit('receive_chat', chat[roomName]);
  });

  socket.on('send_chat_message', (roomName, userName, chatString) => {
    let newMessage = { 
      user: userName, 
      string: chatString 
    };
    chat[roomName].push(newMessage);
    socket.to(roomName).broadcast.emit('new_message_alert', newMessage);
  });

  socket.on('disconnect', () => {
    console.log(`${socket.id} disconnected`);
    values = {};
    activeValues = {};
    cpu = {};
    theme = "";
    rooms = [];
  });
});

server.listen(PORT);