var http = require('http');
var fs = require('fs');
var express = require('express');
var app = express();
var path = require('path');

var server = http.createServer(app);
var port = 8000;

var io = require('socket.io')(server);

io.on('connection', function(socket) {
  console.log('Node.js is listening!!');

  socket.on("hello", (arg, callback) => {
    console.log("hellohelo"); // "world"
    io.emit('blink');
  });

  socket.on('chat message', (msg) => {
    console.log('[user][' + socket.id + '][' + msg + ']');
  });

  socket.on('userposition', (msg) => {
    console.log('[user][' + socket.id + '][position: ' + msg[0] + ',' + msg[1] + ']');
    socket.to('expo').emit(socket.id, msg);
  });
});

server.listen(port, () => {
  console.log("Server is listening at port %d", port);
});

app.use(express.static(path.join(__dirname, "public")));