app.js

require("dotenv").config();
const express = require("express");
const bodyParser = require("body-parser");
const ejs = require("ejs");
const mongoose = require("mongoose");
// const bcrypt = require("bcrypt");
// const saltRounds = 10;
const session = require("express-session");
const passport = require("passport");
const passportLocalMongoose = require("passport-local-mongoose");
const GoogleStrategy = require("passport-google-oauth20").Strategy;
const findOrCreate = require("mongoose-findorcreate");
const ObjectID = require("mongodb").ObjectID;

const app = express();

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

app.use(
  session({
    secret: "Out little secret.",
    resave: false,
    saveUninitialized: false,
  })
);

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

mongoose.connect("mongodb://0.0.0.0:27017/userDB", { useNewURLParser: true });

const userSchema = new mongoose.Schema({
  id: mongoose.Schema.Types.ObjectId,
  email: String,
  password: String,
  googleId: String,
  secret: String,
});

userSchema.plugin(passportLocalMongoose);
userSchema.plugin(findOrCreate);

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

passport.use(User.createStrategy());

passport.serializeUser(function (user, cb) {
  process.nextTick(function () {
    return cb(null, {
      id: user.id,
      username: user.username,
      picture: user.picture,
    });
  });
});

passport.deserializeUser(function (user, cb) {
  process.nextTick(function () {
    return cb(null, user);
  });
});

passport.use(
  new GoogleStrategy(
    {
      clientID: process.env.CLIENT_ID,
      clientSecret: process.env.CLIENT_SECRET,
      callbackURL: "http://localhost:3000/auth/google/secrets",
      userProfileURL: "https://www.googleapis.com/oauth2/v3/userinfo",
    },
    function (accessToken, refreshToken, profile, cb) {
      User.findOrCreate({ googleId: profile.id }, function (err, user) {
        return cb(err, user);
      });
    }
  )
);

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

app.get(
  "/auth/google",
  passport.authenticate("google", { scope: ["profile"] })
);

app.get(
  "/auth/google/secrets",
  passport.authenticate("google", { failureRedirect: "/login" }),
  function (req, res) {
    // Successful authentication, redirect home.
    res.redirect("/secrets");
  }
);

app.get("/submit", function (req, res) {
  if (req.isAuthenticated()) {
    res.render("submit");
  } else {
    res.redirect("/login");
  }
});

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

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

app.get("/secrets", function (req, res) {
  if (req.isAuthenticated()) {
    res.render("secrets");
  } else {
    res.redirect("/login");
  }
});

app.get("/logout", function (req, res) {
  req.logout(function (err) {
    if (err) {
      console.log(err);
    } else {
      res.redirect("/");
    }
  });
});

// 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().then(() => {
//       res.render("secrets");
//     });
//   });
// });

// app.post("/login", function (req, res) {
//   const email = req.body.username;
//   const password = req.body.password;

//   User.findOne({ email: email }).then(function (foundUser) {
//     if (foundUser) {
//       bcrypt.compare(password, foundUser.password, function (err, result) {
//         if (result) {
//           res.render("secrets");
//         }
//       });
//     }
//   });
// });

app.post("/register", function (req, res) {
  User.register(new User
    ({ username: req.body.username }),
    req.body.password,
    function (err, user) {
      if (err) {
        console.log(err);
        res.redirect("/register");
      } else {
        passport.authenticate("local")(req, res, function () {
          res.redirect("/secrets");
        });
      }
    }
  );
});

// app.post("/submit", async function (req, res) {
//   const submittedSecret = req.body.secret;
  
//   // Check if the user is authenticated
//   if (req.isAuthenticated()) {
//     const userId = req.user._id; // Use req.user._id to access the ObjectID

//     try {
//       // Use async/await to update the user's secret
//       const updatedUser =  User.findByIdAndUpdate(userId,{secret:submittedSecret});
//       if (updatedUser) {
//         // updatedUser.secret=submittedSecret;
//         console.log(updatedUser);
//         users.save(function(){
//           res.redirect("/secrets");
//         });
//       } else {
//         console.log("User not found");
//         res.redirect("/login");
//       }
//     } catch (err) {
//       console.error(err);
//       res.redirect("/login");
//     }
//   } else {
//     res.redirect("/login");
//   }
// });

app.post("/submit", async function (req, res) {
  const submittedSecret = req.body.secret;
  
  // Check if the user is authenticated
  if (req.isAuthenticated()) {
    const userId = req.user._id; // Use req.user._id to access the ObjectID

    // Log the userId to the console to check if it's being retrieved correctly
    // console.log("User ID:", user);

    try {
      // Find the user by their ID and await the result
      const user =  User.findById(userId);
      console.log(req.user._id);

      if (user) {
        // Update the secret field
        user.secret = submittedSecret;

        // Save the changes to the database
        await user.save();

        console.log("Secret saved:", user.secret);
        res.redirect("/secrets");
      } else {
        console.log("User not found");
        res.redirect("/login");
      }
    } catch (err) {
      console.error(err);
      res.redirect("/login");
    }
  } else {
    res.redirect("/login");
  }
});



app.post("/login", function (req, res) {
  const user = new User({
    username: req.body.username,
    password: req.body.password,
  });

  req.login(user, function (err) {
    if (err) {
      console.log(err);
    } else {
      passport.authenticate("local")(req, res, function () {
        res.redirect("/secrets");
      });
    }
  });
});

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