const express = require('express');
const app = express();
const passport = require('passport');
const LocalStrategy = require('passport-local').Strategy;
const flash = require('connect-flash');
const bodyParser = require("body-parser");
const cookieSession = require('cookie-session');
const {
    Router
} = require('express');

const session = require('express-session')


app.use(express.static("public"));
app.use(cookieSession({
    name: 'MyAppName',
    keys: ['very secret key'],
    maxAge: 30 * 24 * 60 * 60 * 1000 // 30 days
}));
app.use(bodyParser.urlencoded({
    extended: false
}));
app.use(passport.initialize());
app.use(passport.session());
app.use(flash())
// app.use(router)

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

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


passport.use(new LocalStrategy(
    function (username, password, done) {
        if (username == 'cuong' && password == 'cuong') {
            return done(null, {
                name: 'cuong'
            });
        } else {
            return done(null, false, {
                message: 'Incorrect username or password'
            })
        }
    }
));

app.get('/login',(req, res)=> res.send('please login'));

app.post('/login',
    passport.authenticate('local', {
        successRedirect: '/info',
        failureRedirect: '/login',
        failureFlash: true
    })
);


app.get('/info', isLoggedIn, (req, res) => res.send({
    name: 'cuong'
}));



app.get('/logout', function (req, res) {
    req.logout();
    res.redirect('/login');
});

function isLoggedIn(req, res, next) {

    // if user is authenticated in the session, carry on
    if (req.isAuthenticated())
        return next();

    // if they aren't redirect them to the home page
    res.redirect('/login');
}


app.listen(3000, () => console.log('server listening on port 3000'));