Feature: Authentication with mail notifications

server/emailsend.js

@@ -0,0 +1,30 @@
+const nodemailer = require('nodemailer');
+
+const transporter = nodemailer.createTransport({
+    secure: true,
+    host: 'smtp.gmail.com',
+    port: 465,
+    auth: {
+        user: '[email protected]',    
+        pass: 'pana spre gxji ozzp'        
+    }
+});
+
+function sendEmail(email, sub, msg) {
+    // let to = email;
+    transporter.sendMail({
+        from: '[email protected]',  
+        to: email,                         
+        subject: sub,                  
+        html:msg                       
+    }, (error, info) => {
+        if (error) {
+            console.log('Error occurred: ', error);
+        } else {
+            console.log('Email Sent: ', info.messageId);
+        }
+    });
+}
+
+
+module.exports = sendEmail;

server/index.js

@@ -3,70 +3,115 @@ const cors = require('cors');
 const bcrypt = require('bcryptjs');
 const jwt = require('jsonwebtoken');
 const mongoose = require('mongoose');
-require('dotenv').config(); // Load .env file
+const sendEmail = require('./emailsend');
+require('dotenv').config(); 
 
 const app = express();
 const PORT = process.env.PORT || 8080;
 
-
+// Middleware setup
 app.use(cors());
 app.use(express.json());
 
+// MongoDB connection string from environment variables
 const mongoURI = `mongodb+srv://${process.env.MONGO_USER}:${process.env.MONGO_PASSWORD}@${process.env.MONGO_CLUSTER}/${process.env.MONGO_DATABASE}?retryWrites=true&w=majority`;
 
-mongoose.connect(mongoURI, { useNewUrlParser: true, useUnifiedTopology: true })
-  .then(() => console.log('MongoDB connected!'))
-  .catch(err => console.error('MongoDB connection error:', err));
-
-
-const User = require('./models/User'); 
+// MongoDB connection
+mongoose.connect(mongoURI)
+    .then(() => console.log('MongoDB connected!'))
+    .catch(err => console.error('MongoDB connection error:', err));
+
+// Email template for login notification
+const loginEmailTemplate = `
+<div style="max-width: 600px; margin: 50px auto; background-color: #ffffff; padding: 20px; border-radius: 8px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);">
+    <div style="text-align: center; background-color: #4CAF50; padding: 10px; border-radius: 8px 8px 0 0;">
+        <h1 style="color: white; margin: 0;">Welcome to Skin.AI</h1>
+    </div>
+    <div style="padding: 20px; color: #333333;">
+        <h2 style="color: #4CAF50;">Login Successful</h2>
+        <p>Hello,</p>
+        <p>Thank you for logging in to your Skin.AI account! We're happy to have you back.</p>
+        <p>If you have any questions, feel free to reply to this email. We're here to help!</p>
+    </div>
+    <div style="text-align: center; padding: 10px; background-color: #f4f4f4; border-radius: 0 0 8px 8px;">
+        <p style="font-size: 12px; color: #777777;">&copy; 2024 Skin.AI. All rights reserved.</p>
+    </div>
+</div>
+`;
+
+const User = require('./models/User');
 const JWT_SECRET = process.env.JWT_SECRET || 'your_jwt_secret';
 
 // Register Route
 app.post('/auth/register', async (req, res) => {
-    const { name, email, password, mobile, profileImage } = req.body;
+    try {
+        const { name, email, password, mobile, profileImage } = req.body;
 
-    if (!name || !email || !password || !mobile || !profileImage) {
-        return res.status(400).json({ message: 'All fields are required!' });
-    }
+        if (!name || !email || !password || !mobile || !profileImage) {
+            return res.status(400).json({ message: 'All fields are required!' });
+        }
 
-
-    const existingUser = await User.findOne({ email });
-    if (existingUser) {
-        return res.status(400).json({ message: 'User already exists!' });
-    }
+        const existingUser = await User.findOne({ email });
+        if (existingUser) {
+            return res.status(400).json({ message: 'User already exists!' });
+        }
+
+        const hashedPassword = await bcrypt.hash(password, 10);
+        const newUser = new User({ name, email, password: hashedPassword, mobile, profileImage });
+        await newUser.save();
 
-
-    const hashedPassword = await bcrypt.hash(password, 10);
-
-
-    const newUser = new User({ name, email, password: hashedPassword, mobile, profileImage });
-    await newUser.save();
+        // Send thank-you email on registration
+        sendEmail(email, 'Thank You for Registering', '<h1>Thank you for registering at Skin.AI!</h1>');
 
-    return res.status(201).json({ message: 'User registered successfully', user: { name, email, mobile, profileImage } });
+        return res.status(201).json({ message: 'User registered successfully', user: { name, email, mobile, profileImage } });
+    } catch (error) {
+        console.error('Registration error:', error);
+        return res.status(500).json({ message: 'Server error, please try again later.' });
+    }
 });
 
 // Login Route
 app.post('/auth/login', async (req, res) => {
-    const { email, password } = req.body;
-
-
-    const user = await User.findOne({ email });
-    if (!user) {
-        return res.status(400).json({ message: 'Invalid credentials!' });
-    }
-
-    const isMatch = await bcrypt.compare(password, user.password);
-    if (!isMatch) {
-        return res.status(400).json({ message: 'Invalid credentials!' });
+    try {
+        const { email, password } = req.body;
+
+        const user = await User.findOne({ email });
+        if (!user) {
+            return res.status(400).json({ message: 'Invalid credentials!' });
+        }
+
+        const isMatch = await bcrypt.compare(password, user.password);
+        if (!isMatch) {
+            return res.status(400).json({ message: 'Invalid credentials!' });
+        }
+
+        const token = jwt.sign({ email: user.email, name: user.name }, JWT_SECRET, { expiresIn: '1h' });
+
+        // Send thank-you email on login
+        sendEmail(email, 'Thank You for Logging In', <div style="max-width: 600px; margin: 50px auto; background-color: #ffffff; padding: 20px; border-radius: 8px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);">
+            <div style="text-align: center; background-color: #4CAF50; padding: 10px; border-radius: 8px 8px 0 0;">
+                <h1 style="color: white; margin: 0;">Welcome to Skin.AI</h1>
+            </div>
+            <div style="padding: 20px; color: #333333;">
+                <h2 style="color: #4CAF50;">Login Successful</h2>
+                <p>Hello,</p>
+                <p>Thank you for logging in to your Skin.AI account! We're happy to have you back.</p>
+                <p>If you have any questions, feel free to reply to this email. We're here to help!</p>
+            </div>
+            <div style="text-align: center; padding: 10px; background-color: #f4f4f4; border-radius: 0 0 8px 8px;">
+                <p style="font-size: 12px; color: #777777;">&copy; 2024 Skin.AI. All rights reserved.</p>
+            </div>
+        </div>
+        );
+
+        return res.json({ message: 'Logged in successfully', token });
+    } catch (error) {
+        console.error('Login error:', error);
+        return res.status(500).json({ message: 'Server error, please try again later.' });
     }
-
-    const token = jwt.sign({ email: user.email, name: user.name }, JWT_SECRET, { expiresIn: '1h' });
-
-    return res.json({ message: 'Logged in successfully', token });
 });
 
-
+// Start the server
 app.listen(PORT, () => {
     console.log(`Server running at http://localhost:${PORT}/`);
 });

server/models/User.js

@@ -1,4 +1,3 @@
-
 const mongoose = require('mongoose');
 
 const userSchema = new mongoose.Schema({