app.js

if(process.env.NODE_ENV !=='production'){
    require('dotenv').config();
}

const express = require('express');
const ejsMate = require('ejs-mate');
const app = express();
const path = require('path');
const bodyParser = require("body-parser");
const mongoose = require('mongoose');
const MongoDBS = require('connect-mongo');
const Student = require('./models/studentSchema');
const passport = require('passport');
const passportLocal = require('passport-local');
const session = require('express-session');
const flash = require('connect-flash');
const { isLoggedIn } = require('./middleware');
const Request = require('./models/requestSchema');
const { sendMail } = require('./gmail/register');
const multer = require('multer');
const { storage } = require('./cloudinary/index');
const upload = multer({ storage });
const { approveMail } = require('./gmail/approved');
const catchAsync=require('./utils/catchAsync');
const { appliedMail } = require('./gmail/applied');





app.engine('ejs', ejsMate);
app.set('view engine', 'ejs');
app.use(bodyParser.urlencoded({ extended: true }));

app.set('views', path.join(__dirname, 'views'));

app.use(express.static(path.join(__dirname, 'public')));

const dburl = process.env.MONGO_ATLAS;

const secret = process.env.SECREAT;
mongoose.connect(dburl)
    .then(() => {
        console.log('connected');

    })
    .catch((err) => {
        console.log('error');
        console.log(err);
    });
const store = new MongoDBS({
    mongoUrl: dburl,
    secret: "some",
    touchAfter: 24 * 60 * 60
})

const sessionConfig = {
    store: store,
    secret: 'some',
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
        maxAge: 1000 * 60 * 60 * 24 * 7
    }
}
app.use(session(sessionConfig));
app.use(flash());
app.use(passport.initialize());
app.use(passport.session());
passport.use(new passportLocal(Student.authenticate()));

passport.serializeUser(Student.serializeUser());
passport.deserializeUser(Student.deserializeUser());
app.use(express.static('public'))

app.use((req, res, next) => {
    // console.log(req.session);
    // res.locals.currentUser=req.user;
    res.locals.success = req.flash('success');
    res.locals.error = req.flash('error');
    next();
})
app.get('/signup', (req, res) => {
    res.render('signup');
})
app.get('/', (req, res) => {
    res.render('login');
})
app.get('/delete', async (req, res) => {
    await Request.deleteMany({});
    console.log('deleted');
})
app.get('/post',catchAsync( async (req, res) => {
    const reqs = {
        address: "asdf asdfas fdsaf asdf",
        railway_line: "central",
        class: "second",
        starting: "ghansoli",
        destination: "matunga",
        student: "63c12e59996d902af649c8b8",
        request_status: false
    }
    // const newReq=await Reuqest.find({}).populate('student');
    const newReq = new Request(reqs);
    await newReq.save();
    // console.log(newReq);
    res.send(newReq);
}))
app.get('/showReq', async (req, res) => {
    const data = await Request.find({});
    res.send(data);
})
app.get('/showStudent', async (req, res) => {
    const data = await Request.find({});
    res.send(data);
})
app.get('/institute_view',catchAsync( async (req, res) => {
    // const StudentData=await Student.find({});
    const Requests = await Request.find({ "request_status": "false" }).populate(
        "student"
    );
    // console.log(StudentData);
    res.render('institute_view', { Requests });
}))


app.get('/institute_view/aprroved',catchAsync( async (req, res) => {
    const Requests = await Request.find({ request_status: true }).populate(
        "student"
    );
    // console.log(Requests);
    res.render('accepted', { Requests });
}))

app.get('/institute_view/:id',catchAsync( async (req, res) => {
    const id = req.params.id;
    const reqs = await Request.findById(id).populate('student');
    console.log(reqs);


    res.render('view', { reqs });
    
}))
app.post('/deleteAP/:id',catchAsync( async (req, res) => {
    const id = req.params.id;
    await Request.findByIdAndDelete(id);
    req.flash('success','request deleted');
    res.redirect('/institute_view');
}))
app.get('/institute_view/approved/:id',catchAsync( async (req, res) => {
    const id = req.params.id;
    const reqs = await Request.findById(id).populate('student');
    // console.log(reqs);
    res.render('viewA', { reqs });
}))

app.get('/institute_view/reverted/:id',catchAsync( async (req, res) => {
    const req_id = req.params.id
    console.log(req_id);
    const request = await Request.findById(req_id).populate('student');
    // console.log(request);
    res.render('rejected', { request });

}))
app.post('/institue_view/reverted/:id',catchAsync( async (req, res) => {
    const req_id = req.params.id
    const request = await Request.findById(req_id).populate('student');
    const id = request.student._id;
    
    const student = await Student.findById(id);
    const mailOptions = {
        from: "vjtirailwayconcession@gmail.com",
        to: student.email,
        subject: "Request Reverted",
        
        html: `<p>Dear ${student.first_name} ${student.last_name}, your application for the concession has been reverted back due to the provided reason, <strong> ${req.body.reason} ${req.body.reason1} </strong>.</p> <p> You may now check the status of the application and make the required changes and re-apply for the application. </p>`
    };

    sendMail(mailOptions);
    req.flash('error','Request has been Reverted');
    res.redirect('/institute_view');



}))
app.post('/institute_view/accepted/:id',catchAsync( async (req, res) => {
    const req_id = req.params.id
    const request = await Request.findById(req_id).populate('student');
    request.request_status = true;
    await request.save();
    const id = request.student._id;
  
    const student = await Student.findById(id);
    const mailOptions = {
        from: "vjtirailwayconcession@gmail.com",
        to: student.email,
        subject: "Request Approved",
       
        html: `<p> Dear ${student.first_name} ${student.last_name}, your request for the railway concession has been approved.</p>  <p>You may now visit the Railway Concession Office and get your approved concession, duly stamped and signed. </p>`
    };
    approveMail(mailOptions);
    req.flash('success','Request has been Approved');
    res.redirect('/institute_view');


}))

app.post('/application', passport.authenticate('local', { failureFlash: true, failureRedirect: '/' }),catchAsync( async (req, res) => {


   
    const s = await Student.findOne({ username: req.session.passport.user });
   
    res.render('application', { id: s._id });
}));

app.post('/application/basicdetails', isLoggedIn,catchAsync( async (req, res) => {
    
    const user = await Student.findOne({ username: req.session.passport.user });
   
    const id = user._id;
    
    const st = await Student.findByIdAndUpdate({ _id: id }, { ...req.body }, {
        returnOriginal: false
    })
    const caste = st.caste;

  
    res.redirect(`/application/uploaddoc/${id}`);




}))
app.get('/application/uploaddoc/:id', isLoggedIn,catchAsync( async (req, res) => {

    const st = await Student.findById(req.params.id);
   
    res.render('documents', { st });
}))
app.post('/application/uploaddoc/:id', isLoggedIn, upload.array('image', 3), async (req, res) => {
    
    images = req.files.map(f => ({ url: f.path, filename: f.filename }));
    const student = await Student.findByIdAndUpdate({ _id: req.params.id }, { images });
    
    res.redirect(`/application/conssesion/${req.params.id}`);
   


})
app.get('/application/conssesion/:id', isLoggedIn, async (req, res) => {

    const student = await Student.findById(req.params.id);
    // console.log(req.files);
    // res.send('done');
    res.render('concession-details', { student });
})
app.post('/application/conssesion/:id', isLoggedIn, async (req, res) => {
    // const student=await Student.findByIdAndUpdate({_id:req.params._id},{...req.body});
    const request = await Request({ ...req.body });
    request.student = req.params.id;
    const date= new Date();
    const d=`${date.getDate()} / ${date.getMonth()+1} / ${date.getFullYear()}`;
    request.date=d;
    await request.save();
    // const student=await Student.findById(req.params.id);
    const student = await Student.findOneAndUpdate({ _id: req.params.id }, { $addToSet: { requests: { $each: [request._id] } } },{
        returnOriginal:false
    });

    const mailOptions = {
        from: "vjtirailwayconcession@gmail.com",
        to: student.email,
        subject: "Application Submitted",
        // text: "Testing mail sending using NodeJS"
        html: `<p> Dear ${student.first_name} ${student.last_name}, You have successfully applied for the Railway Concession.</p> <p> You can always view you status of the application at Website. </p>`
    };

    appliedMail(mailOptions);

    res.redirect(`/status/${student._id}`);


})
app.get('/status/:id', isLoggedIn, async (req, res) => {
    // const re = await Request.findById(req.params.id);
    const id=req.params.id;
    // console.log(id);
    const student=await Student.findById(id).populate({
        path:'requests'
    });
    // console.log('in status');
    // console.log(student);
    res.render('status', { student });
})
app.get('/logout', isLoggedIn, async (req, res) => {

    req.logout(function (err) {
        if (err) {
            // req.flash('error', 'something went wrong');
            return res.redirect('/');

        }


        req.flash('success', 'You have successfully logged out');
        res.redirect('/');
    });

})




app.get('/institute_login', async (req, res) => {

    res.render('institute_login');
});


app.post('/signup', async (req, res) => {
    try{
    // console.log(req.body);
    // const student=await Student(req.body);
    // await student.save();
    // res.send(req.body);
    const { username, email, password, first_name, last_name } = req.body;
    const user = new Student({ email, username, first_name, last_name });
    const registeredStudent = await Student.register(user, password);
    req.login(registeredStudent, err => {
        if (err) return next(err);
        // req.flash('success', 'Welcom!!!');
        // res.redirect('/home');
        const mailOptions = {
            from: "vjtirailwayconcession@gmail.com",
            to: registeredStudent.email,
            subject: "Registration Successful",
            // text: "Testing mail sending using NodeJS"
            html: `<p>Dear User, you have successfully registered on our portal.</p> <p> Your USERNAME is <strong>${registeredStudent.username}</strong> and your registered email id is <strong>${registeredStudent.email}</strong>.</p> <p> You can now login, to apply for your concession at <strong>Login </strong>. </p>`
        };
        sendMail(mailOptions);
        // res.send(registeredStudent);
        res.redirect('/');
    })}catch{
        req.flash('error', 'User already exists');
        res.redirect('/signup');
    }
})
app.get('/view', (req, res) => {
    res.render('view');
})
app.post('/institute_login', (req, res) => {
    const { email, password } = req.body;
    if (email === 'kaka@gmail.com' && password === '123') {
        res.redirect('/institute_view');
    } else {
        res.redirect('/institute_login');
    }
})



const port=process.env.PORT|| 3000;
app.listen(port,()=>{
    console.log(`Serving on port${port}`);
})