var debug = require('debug')('express-socket.io-session:example'),
	app = require('express')(),
	server = require('http').createServer(app),
	io = require('socket.io')(server),
	session = require('express-session')({
		secret: 'my-secret',
		resave: true,
		saveUninitialized: true
	}),
	sharedsession = require('../');

// Attach session
app.use(session);

// Share session with io sockets
io.use(
	sharedsession(session, {
		autoSave: true
	})
);

//Debugging express
app.use('*', function(req, res, next) {
	debug('Express `req.session` data is %j.', req.session);
	next();
});
// Debugging io
io.use(function(socket, next) {
	debug('socket.handshake session data is %j.', socket.handshake.session);
	next();
});

app.use(require('express').static(__dirname));

// Set session data via express request
app.use('/login', function(req, res, next) {
	debug('Requested /login');
	req.session.user = {
		username: 'OSK'
	};
	//req.session.save();
	res.redirect('/');
});
// Unset session data via express request
app.use('/logout', function(req, res, next) {
	debug('Requested /logout');
	delete req.session.user;
	//req.session.save();
	res.redirect('/');
});

io.on('connection', function(socket) {
	socket.emit('sessiondata', socket.handshake.session);
	// Set session data via socket
	debug('Emitting session data');
	socket.on('login', function() {
		debug('Received login message');
		socket.handshake.session.user = {
			username: 'OSK'
		};
		debug('socket.handshake session data is %j.', socket.handshake.session);

		// socket.handshake.session.save();
		//emit logged_in for debugging purposes of this example
		socket.emit('logged_in', socket.handshake.session);
	});
	// Unset session data via socket
	socket.on('logout', function() {
		debug('Received logout message');
		socket.handshake.session.user = {};
		// socket.handshake.session.save();
		//emit logged_out for debugging purposes of this example
		debug('socket.handshake session data is %j.', socket.handshake.session);

		socket.emit('logged_out', socket.handshake.session);
	});
});

server.listen(3000);