chat.js

require('dotenv').config();
// Setup basic express server
var fs = require('fs');
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io')(server);
var port = process.env.PORT || 3000;

var site = require('./site');
var responses = {};
var responsesDirectory = './responses/';
console.log(responsesDirectory);
fs.readdir(responsesDirectory, function (err, files) {
  files.forEach(function (file) {
    try {
      responses[file] = require(responsesDirectory + file);
    } catch (e) {
      console.log(e);
    }
    if(err){
      console.log(err);
    }
  });
});

server.listen(port, function () {
//   console.log('Server listening at port %d', port);
});

// Routing
app.use(express.static('chat'));

// constructors
var bot = {};
function dealWithMessage(bot, socket, responses, data){
  var msg = {
    author: {
      bot: (function () {
        var returnBool = false;
        if (socket.username === 'CajunBot') {
          returnBool = true;
        }
        return returnBool;
      })(),
      id: socket.username
    },
    channel: {
      send: function (dataString) {
        //console.log('trying to send message back...', dataString);
        var message = {
          username: 'CajunBot',
          message:  dataString
        }
        //socket.broadcast.emit('new message', message);
        io.emit('new message', message);
      }
    },
    content: data
  };
  for (var response in responses) {
    //loadint responses
    responses[response].command(bot, msg, responses);
  }
  //loading integrations
  //responses['./integrations/timetable.js'].command(bot,msg, responses);
};
// Chatroom

var numUsers = 0;

io.on('connection', function (socket) {
  var addedUser = false;
  // when the client emits 'new message', this listens and executes
  socket.on('new message', function (data) {
    // we tell the client to execute 'new message'
    socket.broadcast.emit('new message', {
      username: socket.username,
      message: data
    });
    dealWithMessage(bot, socket, responses, data)
  });

  // when the client emits 'add user', this listens and executes
  socket.on('add user', function (username) {
    if (addedUser) return;

    // we store the username in the socket session for this client
    socket.username = username;
    ++numUsers;
    addedUser = true;
    socket.emit('login', {
      numUsers: numUsers
    });
    // echo globally (all clients) that a person has connected
    socket.broadcast.emit('user joined', {
      username: socket.username,
      numUsers: numUsers
    });
  });

  // when the client emits 'typing', we broadcast it to others
  socket.on('typing', function () {
    socket.broadcast.emit('typing', {
      username: socket.username
    });
  });

  // when the client emits 'stop typing', we broadcast it to others
  socket.on('stop typing', function () {
    socket.broadcast.emit('stop typing', {
      username: socket.username
    });
  });

  // when the user disconnects.. perform this
  socket.on('disconnect', function () {
    if (addedUser) {
      --numUsers;

      // echo globally that this client has left
      socket.broadcast.emit('user left', {
        username: socket.username,
        numUsers: numUsers
      });
    }
  });
});