const fs = require("fs");
const crypto = require("crypto");
const bodyParser = require("body-parser");
const cookieParser = require("cookie-parser");
const expressSession = require("express-session");
const express = require("express");
const helmet = require("helmet");
const Promise = require("promise");
const nunjucks = require("nunjucks");
const passport = require("passport");
const Sequelize = require("sequelize");
const http = require("http");
const SessionStore = require('express-session-sequelize')(expressSession.Store);
const LocalStrategy = require('passport-local').Strategy;

var config = JSON.parse(fs.readFileSync('./etc/config.json', 'utf8'));
var applicationName = "supipish";

sequelize = new Sequelize(config.database.dbname, config.database.user, config.database.password, {
        host: config.database.host,
        dialect: config.database.type,
        logging: false
    });

const sequelizeSessionStore = new SessionStore({
    db: sequelize,
});

var app = express();
app.use(helmet({frameguard: true}));

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

app.use(express.static(__dirname + config.media_path));

// Setup middleware
app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(bodyParser.json());
app.use(cookieParser());
app.use(expressSession({
    secret: config.session,
    cookie: { secure: true },
    key: config.sid,
    saveUninitialized: true,
    resave: true,
    store : sequelizeSessionStore
}));

// Setup template engine
app.set('view engine', 'html');

nunjucks.configure([__dirname + config.templates_path], {
    autoescape: true,
    express: app,
    watch: true,
});

//passport
app.use(passport.initialize());
app.use(passport.session());

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

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

function isAuthenticated(req, res, next) {
    if (req.isAuthenticated())
        return next();
    res.redirect('/login');
}

app.get('/login',function(req, res){
    res.render("login", {applicationName: applicationName});
});

app.get("/",function(req, res){
res.render("helloworld", {applicationName: applicationName});
});

app.get("/auth",isAuthenticated,function(req, res){
res.render("helloworld", {applicationName: applicationName});
});

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

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



passport.use(new LocalStrategy(
  function(username, password, done)  {

    var user = {name:"superadmin", password:"superpassword"};

if (username != user.name) {return done(null, false, { message: 'Incorrect username.' });} ;
if (password != user.password) {return done(null, false, { message: 'Incorrect password.' });} ;
    console.log("Authentication successful");
      return done(null, user);

  }
));

server = http.createServer(app);
server.listen(config.port,config.host);