var express  = require('express')
  , session  = require('express-session')
  , passport = require('passport')
  , Strategy = require('../lib').Strategy
  , app      = express();

passport.serializeUser(function(user, done) {
  done(null, user);
});
passport.deserializeUser(function(obj, done) {
  done(null, obj);
});

var scopes = ['image', 'email'];

passport.use(new Strategy({
  clientID: '',
  clientSecret: '',
  callbackURL: 'http://localhost:5000/callback',
  scope: scopes
}, function(accessToken, refreshToken, profile, done) {
  process.nextTick(function() {
    return done(null, profile);
  });
}));

app.use(session({
  secret: 'keyboard cat',
  resave: false,
  saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
app.get('/', passport.authenticate('icynet', { scope: scopes }), function(req, res) {});
app.get('/callback',
  passport.authenticate('icynet', { failureRedirect: '/' }), function(req, res) { res.redirect('/info') } // auth success
);
app.get('/logout', function(req, res) {
  req.logout();
  res.redirect('/');
});
app.get('/info', checkAuth, function(req, res) {
  res.json(req.user);
});

function checkAuth(req, res, next) {
  if (req.isAuthenticated()) return next();
  res.send('not logged in :(');
}

app.listen(5000, function (err) {
  if (err) return console.log(err)
  console.log('Listening at http://localhost:5000/')
})