app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var swig = require('swig');
var nodeSass = require('node-sass-middleware');

var routes = require('./routes');

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

var app = express();
app.io = io;

// view engine setup
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());

// view engine
app.set('views', __dirname + '/views');
app.set('view engine', 'html');
app.engine('html', swig.renderFile);

// sass middleware
var sassMiddleware = nodeSass({
  src: __dirname + '/assets',
  dest: __dirname + '/public',
  debug: true
});
app.use(sassMiddleware);

// Linking resources
app.use('/bower_components', express.static(__dirname + '/bower_components'));
app.use(express.static(path.join(__dirname, 'public')));

// Routes
app.use('/', routes(io));

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});


module.exports = app;