var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var mongoose = require('mongoose')
mongoose.connect('mongodb://localhost/IP')

var User = mongoose.model('User', {
  username: String,
  password: String,
  currentGoal: Object, //Coord
  visitedCoord: []
})

var Coord = mongoose.model('Coord', {
    latitude: Number,
    longitude: String,
    ID: Number
})

io.on('connection', function(socket){
    var user;
    var sessionID;

  socket.on('LOGIN', function(email, passwordC){
    User.find({
        username: email,
        password: passwordC
       }, function (err, users) {
            if (err)
                {
                    console.log(res.send('Error ' + err));
                    return;
                }
            if(!users || users.length!=1)
                {
                    socket.emit('FAIL');
                    return;
                }
            user=email;
            sessionID=Math.random();
            socket.emit('SUCCESS', sessionID);

            //start of normal connection

            socket.on('NAME', function(playername){
                console.log("" + playername + "connected.");
                user = playername;
                socket.emit('GOAL', '####coordinates of goal');
                console.log("Sending GOAL to" + user);
              });
            socket.on('POSITION', function(coord){
                console.log(user + "is sending POSITION.");
                if(true /*coordinates match*/)
                {
                socket.emit('SUCCESS', '####coordinates of reached goal + score');
                console.log("Sending SUCCESS to" + user);
                }
              });
            socket.on('GETGOALS', function(){
                console.log(user + "is sending GETGOALS.");
                socket.emit('GOAL', '####coordinates of goal');
                console.log("Sending GOAL to" + user);
              });

        });
  });
  socket.on('REGISTER', function(email, passwordC){
    User.find({
        username: email,
        password: passwordC
       }, function (err, users) {
            if (err)
                {
                    console.log(res.send('Error ' + err));
                    return;
                }
            if(!users || users.length!=0)
                {
                    socket.emit('FAIL');
                    return;
                }
            user=email;
            sessionID=Math.random();
            socket.emit('SUCCESS', sessionID);

            //start of normal connection

            socket.on('NAME', function(playername){
                console.log("" + playername + "connected.");
                user = playername;
                socket.emit('GOAL', '####coordinates of goal');
                console.log("Sending GOAL to" + user);
              });
            socket.on('POSITION', function(coord){
                console.log(user + "is sending POSITION.");
                if(true /*coordinates match*/)
                {
                socket.emit('SUCCESS', '####coordinates of reached goal + score');
                console.log("Sending SUCCESS to" + user);
                }
              });
            socket.on('GETGOALS', function(){
                console.log(user + "is sending GETGOALS.");
                socket.emit('GOAL', '####coordinates of goal');
                console.log("Sending GOAL to" + user);
              });

        });
  });

});

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