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 mongoose = require('mongoose');
var sassMiddleware = require('node-sass-middleware');

// Load models
require('./models/project.js');
require('./models/annotation.js');

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

var app = express();

// Connect to database
mongoose.connect('mongodb://localhost/ux_prototype_annotations');

var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function (callback) {
  console.log("Connected to MongoDB");
});

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

app.use('/stylesheets',
    sassMiddleware({
      src: __dirname + '/public/sass',
      dest: __dirname + '/public/stylesheets',
      debug: true,
      outputStyle: 'expanded'
  })
);

// Cross origin middleware
app.use(function(req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
    res.header('Access-Control-Allow-Headers', 'Content-Type');

    next();
});

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

app.use('/projects', projects);

// 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.json({
            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.json({
        message: err.message,
        error: {}
    });
});


module.exports = app;