index.js

var express = require('express');
var app = express();
var mongo = require('mongodb').MongoClient;



var http = require('http').Server(app);
var io = require('socket.io')(http);
var fs = require('fs');


//Lets load the mongoose module in our program
var mongoose = require('mongoose');

//Lets connect to our database using the DB server URL.
mongoose.Promise = global.Promise;
mongoose.connect('mongodb://localhost/my_database_name');

var schema = new mongoose.Schema({id: String, position_x: Number, position_y: Number, position_z: Number, audioObject: Object});

var audiomessage = mongoose.model('audiomessage', schema);





var path = require('path');
var wav = require('wav');
var ogg = require('ogg');
var stringify = require('node-stringify');
var three = require('three');
var webvrboilerplate = require('webvr-boilerplate');



var counter = 0;
var streamcounter = 0;
var streamOutfile = 'streamdemo.wav';

var opus = require('node-opus');
var oggtrack = '/public/recordings/track.ogg';
var fileName = new Date().toISOString() + ".ogg";




app.use(express.static(__dirname + '/public'));

app.get('/', function(req, res){
  res.sendFile(__dirname + '/index.html');
});

app.get('/public/testpractice.ogg', function (req, res) {
  res.sendFile(__dirname + '/public/testpractice.ogg');
});


// Connection URL. This is where your mongodb server is running.
var url = 'mongodb://localhost:27017/my_database_name';

//app.post('/audio/upload', upload.array('audio', )
//var practice = './public/testpractice.ogg'; //this should be the 

//maybe there should be no io.on? Just socket on?

function afterSaving(){
        audiomessage.find({ }, function (err, userObj){
        if (err) {
          console.log(err);
        } else if (userObj) {
          var res = userObj;
          //console.log("the userOBJ is" + userObj)
          //console.log("the result of the userobj is " + userObj);
          if (userObj.length > 0) {
            var z = userObj.length - 1;
            var send = res[z];
            console.log("the z value is" + z);
            console.log("the object i want to send is" + send)
            //console.log("the object i'm trying to send is: " + send);
          } else {
            var z = 0;
            console.log("This is the first time through. z should be zero, is it? " + z);
            console.log("if z is zero, then we should be getting the first element" + userObj[0]);

            var send = res[0];
             //console.log("The object I'm trying to send is " + send)
          }
          io.emit('positionTest', send);
          //console.log("each time i emit something print this let's see if it matches..." + send);
        }
      })

}

io.on('connection', function(socket){


  	console.log('a user connected');
  	

  	socket.on('audioObjectReceiver', function(){
		//finds EVERY audio object
			audiomessage.find({ }, function (err, userObj) {
		  	if (err) {
		    	console.log(err);
		  	} else if (userObj) {
		  		var res = userObj;
          //console.log(res);
		    	io.emit('audioObjectReceiver', res)
		    }


			});



  	});

  	socket.on('positionTest', function(dataBlob){
  		var audioMessage1 = new audiomessage(dataBlob);
      //console.log("the length of audiomessage is" + audiomessage.length);

      //console.log("position test is called")

			audioMessage1.save(function (err, userObj) {
			  			if (err) {
			    			console.log(err);
			  			} else {
                console.log("Succesfully saved audiomessage from within position test")
                afterSaving();
                //console.log("Trying tos ave audiomessage1");
			    			//console.log('dataBlob iD is: ', dataBlob['id']);
                //test to see if it still crashes when I do this...
                //io.emit('positionTest', userObj)
			  			}
					});

/*      audiomessage.find().sort({_id: -1});
      audiomessage.find({ }, function (err, userObj) {
        if (err) {
          console.log(err);
        } else if (userObj){
          var res = userObj[0]
          io.emit('positionTest', res);
        }
      })*/


      //audiomessage.findOne({ }, )

      //var latestMessage = 
      //io.sockets.emit('positionTest', latestEntry);





      //io.emit('positionTest', userObj)

  	});



  	//server receives message from client
  	socket.on('chat message', function(msg){
    	console.log('message: ' + msg);
    //emits message back to ALL clients including sender
    	io.emit('chat message', msg);

  	});
  

	socket.on('disconnect', function(){
    console.log('user disconnected');
  });

});


http.listen(3000, function(){
  console.log('listening on *:3000');
});