const express = require('express');
const app =	express();

const cookieParser = require('cookie-parser');

// reads urlencoded forms
const bodyParser = require('body-parser');

function getModule (url) {
	const prod = require(`./local-modules/${url}`);
	let dev = null;
	try {
		dev = require(`./local-modules/dev/${url}`);
		return {dev, prod};
	} catch (err) {
		return {dev, prod};
	}
}

// reads multipart forms
// const multipart = require('multer')({dest: 'uploads/'});

// local modules
const setSession = getModule('setSession.js');
const userModule = getModule('users.js');

// read cookies and form data
app.use(
	cookieParser(),
	bodyParser.urlencoded({ extended: true }),
	bodyParser.json({limit: '10mb'})
);

app.set('trust proxy', true);

// load session data, connect to DB
app.use(setSession.dev || setSession.prod);

function appUse (url, module) {
	app.use(`*/${url}`, (req, res, next) => {
		if (module.dev === null) module.prod(req, res, next);
		else module.dev(req, res, next);
	});
}

appUse('users', userModule);
appUse('roles', roleModule);

app.post(`*/keepAlive`, (req, res) => {
	res.sendStatus(200);
});

app.get(`.*/`, (req, res) => {
	res.send('<h3>home</h3>');
});

app.listen(process.env.PORT || 80, () => { console.log('listening'); });