app.js

require("dotenv").config();
const express = require("express")
const ejs = require("ejs")
const bodyParser = require("body-parser")
const mongoose = require("mongoose")
const bcrypt = require("bcrypt")
const saltRounds = 10;

const app = express()

app.set('view engine', 'ejs')
app.use(bodyParser.urlencoded({extended: true}))
app.use(express.static('public'))

mongoose.connect("mongodb://localhost:27017/userDB")

const userSchema = new mongoose.Schema ({
    email: String,
    password: String
})

const User = new mongoose.model("User", userSchema)


app.get("/", function(req, res){
    res.render("home")
})

app.get("/login", function(req, res){
    res.render("login")
})

app.get("/register", function(req, res){
    res.render("register")
})

app.post("/register", function(req, res){
    bcrypt.hash(req.body.password, saltRounds, function(err, hash){
        const newUser = new User ({
            email: req.body.username,
            password: hash
        })
    
        newUser.save(function(err){
            if (err) {
                console.log(err);
            } else {
                res.render("secrets")
            }
        })
    })
})

app.post("/login", function(req, res){
    const username = req.body.username
    const password = req.body.password
    User.findOne(
        {email: username},
        function(err, foundUser){
            if (err) {
                console.log(err);
            } else {
                if (foundUser) {
                    bcrypt.compare(password, foundUser.password, function(err, result){
                        if (result === true) {
                            res.render("secrets")
                        }
                    })
                }
            }
        }
    )
})

app.listen(3000, function(){
    console.log("Server started on port 3000");
})