var express = require('express')
    , app = express()
    , port = process.env.PORT || 3000
    , http = require('http').Server(app)
    , io = require('socket.io')(http);

io.on('connection', function(socket) {
  socket.on('message', function(msg) {
    io.sockets.emit('message', msg);
  });
});

// export the server so it can be easily called for testing
exports.server = http.listen(port);