const express = require('express');
const path = require('path');
const exphbs = require('express-handlebars');
const bodyParser = require("body-parser");
const mongoose = require('mongoose')
const session = require('express-session');
const MongoStore = require('connect-mongo')(session);
mongoose.set('useCreateIndex', true);
mongoose.set('useFindAndModify', false);

//import routes
const grupoRoute = require('./routes/grupo');
const materiaRoute = require('./routes/materia');
const loginRoute = require('./routes/login')
const registerRoute = require('./routes/register')
const dashboardRoute = require('./routes/dashboard')
const logOutRoute = require('./routes/logout')
const estudianteRoute = require('./routes/estudiante')
const evaluacionRoute = require('./routes/evaluacion')
const calificacionRoute = require('./routes/calificacion');

// Init app
const app = express();
const port = process.env.PORT || 3000;

// Connect to mongoDB
mongoose.connect('mongodb://heroku_nsjpv19x:jorgemorales95@ds161175.mlab.com:61175/heroku_nsjpv19x', { useNewUrlParser: true }, (err, db) =>{
    if(err){ console.log(err) }
    else{ console.log("connected to MongoDB") }
});

// -- MIDDLEWARES -- //

// public folder
app.use('/public', express.static(path.join(__dirname, 'public')))
// Use body-parser
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

// Set up sessions
app.use(session({
    store: new MongoStore({ mongooseConnection: mongoose.connection }),
    secret: "#$#$^*&GBFSDF&^",
    resave: false,
    saveUninitialized: false,
}));

// use Handlebars view engine
app.set('views', path.join(__dirname, 'views'));
app.engine('.hbs', exphbs({defaultLayout: 'main', extname: '.hbs'}));
app.set('view engine', '.hbs')


// -- ROUTERS -- //
// Main page
app.get("/", (req, res) =>{
    if (req.session.loggedIn){
        res.redirect('/dashboard')
    }else{
        res.render('login')
    }
});

// grupo route
app.use('/grupos', grupoRoute);
// Materia route
app.use('/materias', materiaRoute);
// Estudiante Route
app.use('/estudiantes', estudianteRoute);
// Evaluacion de Materia Route
app.use('/evaluaciones', evaluacionRoute)
// Evaluacion de estudiante Route
app.use('/calificaciones', calificacionRoute);
// login route
app.use('/', loginRoute);
// Register route
app.use('/', registerRoute);
// Dashboard route
app.use('/', dashboardRoute);
// Logout route
app.use('/', logOutRoute);


app.listen(port, () => console.log(`server started on port ${port}`))