server.js

var express = require('express'),
	session = require('express-session'),
	MongoStore = require('connect-mongo')(session),
	http = require('http'),
	path = require('path'),
	less = require('less-middleware'),
	engine = require('ejs-locals'),
	favicon = require('serve-favicon'),
	logger = require('./services/logger'),
	db = require('./services/db'),
	mongoose = require('./services/mongoose.js'),
	books = require('./services/books'),
	routes = require('./routes/index'),
	contact = require('./routes/contact'),
	api = require('./routes/api/api'),
	schools = require('./routes/schools.js'),
	users = require('./routes/users'),
	config = require('./config'),
	admin = require('./routes/admin'),
	adminAPI = require('./routes/api/admin/api'),
	organizations = require('./routes/organizations')

function initializeApplication() {
	var app = express()

	app.disable('x-powered-by')

	app.set('views', path.join(__dirname, 'views'))
	app.set('view engine', 'ejs')
	app.engine('ejs', engine)

	app.use(favicon(__dirname + '/public/favicon.ico'))
	app.use(less(path.join(__dirname, 'public')))
	app.use(express.static(path.join(__dirname, 'public')))

	//TODO: Make secret env var
	app.use(session({
		store: new MongoStore({
			db: db.get()
		}),
		saveUninitialized: false,
		resave: false,
		secret: 'b4e-secret'
	}))

	app.use(function populateLocals(req, res, next) {
		res.locals.user = req.user
		res.locals.config = config
		res.locals.page_name = 'undefined'

		if(req.session.user) {
			res.locals.loggedIn = req.session.user.email
			if(typeof req.session.user.admin != 'undefined') {
				res.locals.admin = req.session.user.admin
			}
		}

		books.stats(function(err, stats) {
			if(err) {
				return next(err)
			}
			res.locals.stats = stats
			return next()
		})
	})

	app.use('/', routes)
	app.use('/api', api)
	app.use('/api/admin', adminAPI)
	app.use('/admin', admin)
	app.use('/', organizations)
	app.use('/users', users)
	app.use('/schools', schools)
	app.use('/contact', contact)

	app.use(function notFound(req, res, next) {
		var err = new Error('Resource not Found')
		err.status = 404
		next(err)
	})

	app.use(function(err, req, res) {
		logger.warn(err)

		res.status(err.status || 500)

		if(req.is('json')) {
			res.json({
				'error': err.message
			})
		} else {
			res.render('error', {
				message: err.message
			})
		}
	})

	var server = http.createServer(app)
	var port = process.env.OPENSHIFT_NODEJS_PORT || process.env.PORT || 3200
	var host = process.env.OPENSHIFT_NODEJS_IP || '0.0.0.0'

	server.listen(port, host, function() {
		logger.info('b4e listening on', server.address())
	})

	process.on('SIGTERM', function() {
		logger.info('SIGTERM received, try ordered shutdown')
		server.close(function() {
			db.disconnect(function() {
				process.exit(0)
			})
		})
	})
}

db.connect((err) => {
	if(err) {
		process.exit(1)
	}
	mongoose.connect()

	initializeApplication()
})