app.js

const jwt = require('jsonwebtoken');
const express=require('express');
const app =express();
const bodyParser=require('body-parser')
const port_server = 3000;
const {user_modal,property_modal}=require('./mongoDBcon.js')
const session = require('express-session');
const cookieParser=require('cookie-parser')

// cookie-parser
app.use(cookieParser());

// Use express-session middleware with MongoDB as the session store
app.use(
    session({
        secret: 'your-secret-key',
        resave: true,
        saveUninitialized: true,
        cookie: {
            maxAge: 24 * 60 * 60 * 1000, // 24 hours in milliseconds
            httpOnly: true,
        },
    })
);

// Allowing body parsing
app.use(bodyParser.urlencoded({ extended: true }));

// set the template engine
app.set('view engine','ejs');

// for serving static content 
app.use(express.static('./public'));

// Running a server 
app.listen(port_server,()=>{console.log(`Server running on port ${port_server} ! `)});

// get for home page
app.get('/',(q,r)=>{
    r.render('index');
});
// get for home page
app.get('/index',(q,r)=>{
    r.render('index');
});

// get for login
app.get('/login',(q,r)=>{
    console.log("into login");
    try {
        if (jwt.verify(q.cookies.jwt,'your-secret-key')){
            r.redirect('workspace_page');
        }
    } catch (error) {
        console.log("Coookie not found or incorrect JWT token");
        r.render('login');
    }
});

// get for contact_us
app.get('/contact_us',(q,r)=>{
    r.render('contact_us');
});

// get for WS_sell
app.get('/WS_sell',async(q,r)=>{
    console.log("\t\t\tinto WS_sell\n\n")
    try {
        await jwt.verify(q.cookies.jwt,'your-secret-key');
        r.render('WS_sell')
} catch (error) {
    console.log(error)
        r.redirect('login');
}
});

// get for signup
app.get('/signup',(q,r)=>{
    r.render('signup');
});

// get for workspace 
app.get('/workspace_page',async(q,r)=>{
    try {
        console.log("\t\t\tWS_page\n\n");
        console.log(q.cookies._id);
        if (q.cookies && q.cookies.jwt) {
            console.log("Cookies:", q.cookies.jwt);}
        console.log(q.cookies.jwt);
        await jwt.verify(q.cookies.jwt,'your-secret-key');
        const properties = await property_modal.find({});
        r.render('workspace_page',{properties})
} catch (error) {
    console.log(error);
        r.redirect('login');
}
    //r.render('workspace_page');
});

// get for logout
app.get('/logout', (q, r) => {
    q.session.destroy((err) => {
        if (err) {
            console.error(err);
            r.status(500).send('Internal Server Error');
        } else {
            r.clearCookie('jwt');
            r.redirect('/');
        }
    });
});

// POST for Login
app.post('/login_post', async (q, r) => {

    const email_check = q.body.email;
    const pass_check = q.body.password;
    const user = await user_modal.findOne({ email: email_check });

    if (user.password === pass_check) {
        // Create a JWT token
        const token =await jwt.sign({ email: user.email }, 'your-secret-key', {
            expiresIn: '24h',
        });
        await r.cookie('jwt', token, { httpOnly: true });
        await r.cookie('_id',email_check);
        r.redirect('workspace_page');
    } else {
        console.log("\t\t\tProblem in login")
        r.status(404);
        r.render('login');
    }
});

// POST for signup
app.post('/workspace_page',async(q,r)=>{
    console.log("\t\t\tInto signup\n");
    //fteching data  
    const email=await q.body.email;
    const first_name=await q.body.first_name;
    const last_name=await q.body.last_name;
    const pass=await q.body.password;
    console.log(email,first_name,last_name,pass);
    const res=await user_modal.insertMany({
        first_name_user:first_name,
        last_name_user:last_name,
        password:pass,
        email:email
    });
    r.redirect('login');
});

// POST for deletion of property
app.post('/delete_property',async (q,r)=>{
    console.log("\t\t\t Into the delete_property")
    const data_for_deletion=await {
        State:q.body.removeState,
        City:q.body.removeCity,
        House_number_and_residency_name:q.body.removeUniqueID
    };
    try {
        await property_modal.deleteMany({
            State:q.body.removeState,
            City:q.body.removeCity,
            House_number_and_residency_name:q.body.removeUniqueID
        });
        r.redirect('workspace_page');
    } catch (error) {
        r.status(410).redirect('WS_sell');
    }
})

// POST for WS_sell
app.post('/WS_sell',async (q,r)=>{
    // getting data from page
    const data_from_page=await {
        contact_person_full_name : q.body.Name_person,
        State : q.body.State,
        City : q.body.city_name,
        House_number_and_residency_name : q.body.Unique_id,
        Full_address : q.body.Address1+q.body.Address2+q.body.Address3,
        Img_url : q.body.Img_url,
        Total_size:q.body.size,
        Additional_info: q.body.additional_info,
        Price : q.body.Price,
        ZIP_code : q.body.zip_code,
        BHK : q.body.BHK,
        phone_number_for_contact : q.body.phoneNumber
    };
    await property_modal.insertMany(data_from_page);
    r.redirect('/workspace_page');
});

// Page or resource not found 
app.get('*',(q,r)=>{
    r.status(404).send('<h1>404 Not Found</h1>');
});