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ysnrfd_messenger/BACKUP/README.md

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+# YSNRFD Messenger
+
+A modern, real-time messaging application built with the MERN stack (MongoDB, Express.js, React, Node.js) and Socket.IO.
+
+## 🚀 Features
+
+### Core Messaging
+- Real-time one-on-one and group messaging
+- Read receipts and typing indicators
+- Message status (sending, sent, delivered, read)
+- Message editing and deletion
+- Emoji reactions
+
+### File Sharing
+- Image files with preview and download
+- Audio files with built-in player
+- Document files (PDF, TXT) with download
+- File size validation and type checking
+- Drag & drop file upload
+
+### User Experience
+- Dark/Light theme support
+- Responsive design for all devices
+- Progressive Web App (PWA) support
+- Auto-login with token persistence
+- Online/offline status
+- User search and contact management
+
+### Advanced Features
+- Group chats with admin roles
+- Invite links for group joining
+- Message search and filtering
+- File caching for offline access
+- Real-time notifications
+- Cross-device synchronization
+
+## 🛠️ Tech Stack
+
+### Frontend
+- **React 18** with TypeScript
+- **Tailwind CSS** for styling
+- **Socket.IO Client** for real-time communication
+- **Vite** for build tooling
+- **Lucide React** for icons
+
+### Backend
+- **Node.js** with Express.js
+- **Socket.IO** for WebSocket communication
+- **MongoDB** with Mongoose ODM
+- **JWT** for authentication
+- **Multer** for file uploads
+
+## 📦 Installation
+
+### Prerequisites
+- Node.js 16+ 
+- MongoDB 4.4+
+- npm or yarn
+
+### Backend Setup
+```bash
+cd backend
+npm install
+cp .env.example .env
+# Configure your environment variables
+npm run dev
+```

ysnrfd_messenger/BACKUP/backend/.env

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+NODE_ENV=development
+PORT=5000
+CLIENT_URL=http://localhost:3000
+MONGODB_URI=mongodb://localhost:27017/ysnrfd-messenger
+JWT_SECRET=your-super-secret-jwt-key-here
+JWT_EXPIRES_IN=30d
+UPLOAD_PATH=./uploads

ysnrfd_messenger/BACKUP/backend/.env.example

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+NODE_ENV=development
+PORT=5000
+CLIENT_URL=http://localhost:3000
+MONGODB_URI=mongodb://localhost:27017/ysnrfd-messenger
+JWT_SECRET=your-super-secret-jwt-key-here
+JWT_EXPIRES_IN=30d
+
+# File Upload Configuration
+AWS_ACCESS_KEY_ID=your-aws-access-key
+AWS_SECRET_ACCESS_KEY=your-aws-secret-key
+AWS_REGION=us-east-1
+S3_BUCKET_NAME=ysnrfd-messenger-files
+UPLOAD_MAX_SIZE=52428800
+
+# For local file storage (fallback)
+UPLOAD_PATH=./uploads

ysnrfd_messenger/BACKUP/backend/.gitignore

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+node_modules/
+uploads/
+.env
+*.log
+.DS_Store
+coverage/
+.nyc_output/

ysnrfd_messenger/BACKUP/backend/package-lock.json

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+{
+  "name": "ysnrfd-messenger-backend",
+  "version": "1.0.0",
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+  "requires": true,
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+}

ysnrfd_messenger/BACKUP/backend/package.json

@@ -0,0 +1,37 @@
+{
+  "name": "ysnrfd-messenger-backend",
+  "version": "1.0.0",
+  "description": "Real-time messaging backend for YSNRFD Messenger",
+  "main": "server.js",
+  "type": "commonjs",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "nodemon server.js",
+    "test": "jest"
+  },
+  "dependencies": {
+    "bcryptjs": "2.4.3",
+    "cors": "2.8.5",
+    "dotenv": "16.3.1",
+    "express": "^4.21.2",
+    "express-rate-limit": "6.8.1",
+    "helmet": "7.0.0",
+    "jsonwebtoken": "9.0.1",
+    "mongoose": "^7.8.7",
+    "multer": "2.0.2",
+    "socket.io": "^4.8.1",
+    "uuid": "9.0.0",
+    "validator": "^13.15.23"
+  },
+  "devDependencies": {
+    "nodemon": "3.0.1"
+  },
+  "keywords": [
+    "messenger",
+    "real-time",
+    "websocket",
+    "chat"
+  ],
+  "author": "YSNRFD Team",
+  "license": "MIT"
+}

ysnrfd_messenger/BACKUP/backend/server.js

@@ -0,0 +1,200 @@
+const express = require('express');
+const http = require('http');
+const socketIo = require('socket.io');
+const mongoose = require('mongoose');
+const cors = require('cors');
+const bcrypt = require('bcryptjs');
+const jwt = require('jsonwebtoken');
+const path = require('path');
+require('dotenv').config();
+
+const app = express();
+const server = http.createServer(app);
+
+// Fix CORS configuration
+const io = socketIo(server, {
+  cors: {
+    origin: "http://localhost:3000",
+    methods: ["GET", "POST", "PUT", "DELETE"],
+    credentials: false
+  }
+});
+
+// CORS middleware - fix this part
+app.use(cors({
+  origin: "http://localhost:3000",
+  credentials: false,
+  methods: ["GET", "POST", "PUT", "DELETE"],
+  allowedHeaders: ["Content-Type", "Authorization"]
+}));
+
+app.use(express.json());
+app.use('/uploads', express.static(path.join(__dirname, 'uploads')));
+
+// Simple User Model (in-memory for now)
+const users = [];
+
+// Auth Routes
+app.post('/api/auth/register', async (req, res) => {
+  try {
+    const { username, email, password, displayName } = req.body;
+
+    console.log('Registration attempt:', { username, email, displayName });
+
+    // Validation
+    if (!username || !email || !password || !displayName) {
+      return res.status(400).json({ error: 'All fields are required' });
+    }
+
+    // Check if user exists
+    const existingUser = users.find(u => u.email === email || u.username === username);
+    if (existingUser) {
+      return res.status(400).json({ error: 'User already exists' });
+    }
+
+    // Hash password
+    const hashedPassword = await bcrypt.hash(password, 12);
+
+    // Create user
+    const user = {
+      id: Date.now().toString(),
+      username,
+      email,
+      displayName,
+      password: hashedPassword,
+      avatar: null,
+      status: 'online',
+      lastSeen: new Date(),
+      createdAt: new Date()
+    };
+
+    users.push(user);
+
+    // Generate token
+    const token = jwt.sign({ userId: user.id }, process.env.JWT_SECRET || 'fallback-secret', { expiresIn: '30d' });
+
+    // Remove password from response
+    const { password: _, ...userWithoutPassword } = user;
+
+    console.log('User registered successfully:', userWithoutPassword.username);
+
+    res.status(201).json({
+      message: 'User registered successfully',
+      user: userWithoutPassword,
+      token
+    });
+
+  } catch (error) {
+    console.error('Registration error:', error);
+    res.status(500).json({ error: 'Server error during registration' });
+  }
+});
+
+app.post('/api/auth/login', async (req, res) => {
+  try {
+    const { email, password } = req.body;
+
+    console.log('Login attempt:', { email });
+
+    if (!email || !password) {
+      return res.status(400).json({ error: 'Email and password are required' });
+    }
+
+    // Find user
+    const user = users.find(u => u.email === email);
+    if (!user) {
+      return res.status(401).json({ error: 'Invalid credentials' });
+    }
+
+    // Check password
+    const isPasswordValid = await bcrypt.compare(password, user.password);
+    if (!isPasswordValid) {
+      return res.status(401).json({ error: 'Invalid credentials' });
+    }
+
+    // Update user status
+    user.status = 'online';
+    user.lastSeen = new Date();
+
+    // Generate token
+    const token = jwt.sign({ userId: user.id }, process.env.JWT_SECRET || 'fallback-secret', { expiresIn: '30d' });
+
+    // Remove password from response
+    const { password: _, ...userWithoutPassword } = user;
+
+    console.log('User logged in:', userWithoutPassword.username);
+
+    res.json({
+      message: 'Login successful',
+      user: userWithoutPassword,
+      token
+    });
+
+  } catch (error) {
+    console.error('Login error:', error);
+    res.status(500).json({ error: 'Server error during login' });
+  }
+});
+
+app.get('/api/auth/me', (req, res) => {
+  const token = req.headers.authorization?.split(' ')[1];
+  
+  if (!token) {
+    return res.status(401).json({ error: 'No token provided' });
+  }
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET || 'fallback-secret');
+    const user = users.find(u => u.id === decoded.userId);
+    
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
+    const { password: _, ...userWithoutPassword } = user;
+    res.json({ user: userWithoutPassword });
+
+  } catch (error) {
+    res.status(401).json({ error: 'Invalid token' });
+  }
+});
+
+// Health check
+app.get('/api/health', (req, res) => {
+  res.json({ 
+    status: 'OK', 
+    message: 'YSNRFD Messenger Backend is running!',
+    usersCount: users.length,
+    timestamp: new Date().toISOString()
+  });
+});
+
+// Test route to verify CORS is working
+app.get('/api/test-cors', (req, res) => {
+  res.json({ 
+    message: 'CORS is working!',
+    corsConfig: {
+      origin: 'http://localhost:3000',
+      credentials: false
+    }
+  });
+});
+
+// Socket.io connection
+io.on('connection', (socket) => {
+  console.log('User connected:', socket.id);
+  
+  socket.on('disconnect', () => {
+    console.log('User disconnected:', socket.id);
+  });
+});
+
+const PORT = process.env.PORT || 5000;
+server.listen(PORT, () => {
+  console.log(`🚀 YSNRFD Messenger backend running on port ${PORT}`);
+  console.log(`🔧 Environment: ${process.env.NODE_ENV || 'development'}`);
+  console.log(`🌍 Frontend URL: http://localhost:3000`);
+  console.log(`🔍 Health check: http://localhost:${PORT}/api/health`);
+  console.log(`🔍 CORS test: http://localhost:${PORT}/api/test-cors`);
+  console.log(`👥 Registered users: ${users.length}`);
+});

ysnrfd_messenger/BACKUP/backend/src/config/database.js

@@ -0,0 +1,17 @@
+const mongoose = require('mongoose');
+
+const connectDB = async () => {
+  try {
+    const conn = await mongoose.connect(process.env.MONGODB_URI, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+    });
+
+    console.log(`MongoDB Connected: ${conn.connection.host}`);
+  } catch (error) {
+    console.error('Database connection error:', error);
+    process.exit(1);
+  }
+};
+
+module.exports = connectDB;

ysnrfd_messenger/BACKUP/backend/src/controllers/authController.js

@@ -0,0 +1,208 @@
+const User = require('../models/User');
+const jwt = require('jsonwebtoken');
+const validator = require('validator');
+
+const generateToken = (userId) => {
+  return jwt.sign({ userId }, process.env.JWT_SECRET, { expiresIn: process.env.JWT_EXPIRES_IN || '30d' });
+};
+
+exports.register = async (req, res) => {
+  try {
+    const { username, email, password, displayName } = req.body;
+
+    // Validation
+    if (!username || !email || !password || !displayName) {
+      return res.status(400).json({ error: 'All fields are required' });
+    }
+
+    if (!validator.isEmail(email)) {
+      return res.status(400).json({ error: 'Invalid email format' });
+    }
+
+    if (password.length < 6) {
+      return res.status(400).json({ error: 'Password must be at least 6 characters' });
+    }
+
+    if (username.length < 3 || username.length > 30) {
+      return res.status(400).json({ error: 'Username must be between 3 and 30 characters' });
+    }
+
+    // Check if user exists
+    const existingUser = await User.findOne({
+      $or: [{ email }, { username }]
+    });
+
+    if (existingUser) {
+      const field = existingUser.email === email ? 'email' : 'username';
+      return res.status(400).json({ error: `User already exists with this ${field}` });
+    }
+
+    // Create user
+    const user = await User.create({
+      username,
+      email,
+      password,
+      displayName
+    });
+
+    // Generate token
+    const token = generateToken(user._id);
+
+    // Set cookie
+    res.cookie('token', token, {
+      httpOnly: true,
+      secure: process.env.NODE_ENV === 'production',
+      sameSite: 'strict',
+      maxAge: 30 * 24 * 60 * 60 * 1000 // 30 days
+    });
+
+    res.status(201).json({
+      message: 'User registered successfully',
+      user: {
+        id: user._id,
+        username: user.username,
+        email: user.email,
+        displayName: user.displayName,
+        avatar: user.avatar,
+        status: user.status,
+        bio: user.bio
+      },
+      token
+    });
+  } catch (error) {
+    console.error('Registration error:', error);
+    res.status(500).json({ error: 'Server error during registration' });
+  }
+};
+
+exports.login = async (req, res) => {
+  try {
+    const { email, password } = req.body;
+
+    if (!email || !password) {
+      return res.status(400).json({ error: 'Email and password are required' });
+    }
+
+    // Find user and include password for comparison
+    const user = await User.findOne({ email }).select('+password');
+    
+    if (!user) {
+      return res.status(401).json({ error: 'Invalid credentials' });
+    }
+
+    // Check password
+    const isPasswordValid = await user.comparePassword(password);
+    if (!isPasswordValid) {
+      return res.status(401).json({ error: 'Invalid credentials' });
+    }
+
+    // Update status to online
+    user.status = 'online';
+    user.lastSeen = new Date();
+    await user.save();
+
+    const token = generateToken(user._id);
+
+    res.cookie('token', token, {
+      httpOnly: true,
+      secure: process.env.NODE_ENV === 'production',
+      sameSite: 'strict',
+      maxAge: 30 * 24 * 60 * 60 * 1000
+    });
+
+    res.json({
+      message: 'Login successful',
+      user: {
+        id: user._id,
+        username: user.username,
+        email: user.email,
+        displayName: user.displayName,
+        avatar: user.avatar,
+        status: user.status,
+        bio: user.bio,
+        lastSeen: user.lastSeen
+      },
+      token
+    });
+  } catch (error) {
+    console.error('Login error:', error);
+    res.status(500).json({ error: 'Server error during login' });
+  }
+};
+
+exports.logout = async (req, res) => {
+  try {
+    // Update user status to offline
+    if (req.user) {
+      await User.findByIdAndUpdate(req.user.userId, {
+        status: 'offline',
+        lastSeen: new Date()
+      });
+    }
+
+    res.clearCookie('token');
+    res.json({ message: 'Logged out successfully' });
+  } catch (error) {
+    console.error('Logout error:', error);
+    res.status(500).json({ error: 'Server error during logout' });
+  }
+};
+
+exports.getMe = async (req, res) => {
+  try {
+    const user = await User.findById(req.user.userId);
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
+    res.json({ 
+      user: {
+        id: user._id,
+        username: user.username,
+        email: user.email,
+        displayName: user.displayName,
+        avatar: user.avatar,
+        status: user.status,
+        bio: user.bio,
+        lastSeen: user.lastSeen,
+        settings: user.settings
+      }
+    });
+  } catch (error) {
+    console.error('Get me error:', error);
+    res.status(500).json({ error: 'Server error' });
+  }
+};
+
+exports.updateProfile = async (req, res) => {
+  try {
+    const { displayName, bio, status } = req.body;
+    const updateData = {};
+
+    if (displayName) updateData.displayName = displayName;
+    if (bio !== undefined) updateData.bio = bio;
+    if (status) updateData.status = status;
+
+    const user = await User.findByIdAndUpdate(
+      req.user.userId,
+      updateData,
+      { new: true, runValidators: true }
+    );
+
+    res.json({
+      message: 'Profile updated successfully',
+      user: {
+        id: user._id,
+        username: user.username,
+        email: user.email,
+        displayName: user.displayName,
+        avatar: user.avatar,
+        status: user.status,
+        bio: user.bio
+      }
+    });
+  } catch (error) {
+    console.error('Update profile error:', error);
+    res.status(500).json({ error: 'Server error during profile update' });
+  }
+};

ysnrfd_messenger/BACKUP/backend/src/controllers/conversationController.js

@@ -0,0 +1,232 @@
+const Conversation = require('../models/Conversation');
+const Message = require('../models/Message');
+const User = require('../models/User');
+const { generateInviteCode } = require('../utils/helpers');
+
+exports.createConversation = async (req, res) => {
+  try {
+    const { type, name, description, participantIds } = req.body;
+    const userId = req.user.userId;
+
+    // Validate conversation type
+    if (!['direct', 'group'].includes(type)) {
+      return res.status(400).json({ error: 'Invalid conversation type' });
+    }
+
+    // For direct messages, check if conversation already exists
+    if (type === 'direct') {
+      if (!participantIds || participantIds.length !== 1) {
+        return res.status(400).json({ error: 'Direct message requires exactly one participant' });
+      }
+
+      const existingConversation = await Conversation.findOne({
+        type: 'direct',
+        participants: {
+          $all: [
+            { $elemMatch: { user: userId } },
+            { $elemMatch: { user: participantIds[0] } }
+          ]
+        }
+      }).populate('participants.user', 'username displayName avatar status');
+
+      if (existingConversation) {
+        return res.json({ 
+          message: 'Conversation already exists',
+          conversation: existingConversation 
+        });
+      }
+    }
+
+    // Create conversation
+    const participants = [
+      { user: userId, role: 'owner' },
+      ...participantIds.map(pid => ({ user: pid, role: 'member' }))
+    ];
+
+    const conversation = new Conversation({
+      type,
+      name: type === 'direct' ? null : name,
+      description: type === 'direct' ? null : description,
+      createdBy: userId,
+      participants
+    });
+
+    await conversation.save();
+    await conversation.populate('participants.user', 'username displayName avatar status');
+
+    res.status(201).json({
+      message: 'Conversation created successfully',
+      conversation
+    });
+  } catch (error) {
+    console.error('Create conversation error:', error);
+    res.status(500).json({ error: 'Server error creating conversation' });
+  }
+};
+
+exports.getUserConversations = async (req, res) => {
+  try {
+    const userId = req.user.userId;
+
+    const conversations = await Conversation.find({
+      'participants.user': userId
+    })
+    .populate('participants.user', 'username displayName avatar status')
+    .populate('lastMessage')
+    .sort({ updatedAt: -1 });
+
+    res.json({ conversations });
+  } catch (error) {
+    console.error('Get conversations error:', error);
+    res.status(500).json({ error: 'Server error fetching conversations' });
+  }
+};
+
+exports.getConversation = async (req, res) => {
+  try {
+    const { conversationId } = req.params;
+    const userId = req.user.userId;
+
+    const conversation = await Conversation.findOne({
+      _id: conversationId,
+      'participants.user': userId
+    })
+    .populate('participants.user', 'username displayName avatar status')
+    .populate('createdBy', 'username displayName');
+
+    if (!conversation) {
+      return res.status(404).json({ error: 'Conversation not found' });
+    }
+
+    res.json({ conversation });
+  } catch (error) {
+    console.error('Get conversation error:', error);
+    res.status(500).json({ error: 'Server error fetching conversation' });
+  }
+};
+
+exports.getConversationMessages = async (req, res) => {
+  try {
+    const { conversationId } = req.params;
+    const { page = 1, limit = 50 } = req.query;
+    const userId = req.user.userId;
+
+    // Check if user is part of conversation
+    const conversation = await Conversation.findOne({
+      _id: conversationId,
+      'participants.user': userId
+    });
+
+    if (!conversation) {
+      return res.status(404).json({ error: 'Conversation not found' });
+    }
+
+    const messages = await Message.find({ conversation: conversationId })
+      .populate('sender', 'username displayName avatar')
+      .populate('replyTo')
+      .sort({ createdAt: -1 })
+      .limit(limit * 1)
+      .skip((page - 1) * limit);
+
+    // Reverse to get chronological order
+    const sortedMessages = messages.reverse();
+
+    res.json({
+      messages: sortedMessages,
+      pagination: {
+        page: parseInt(page),
+        limit: parseInt(limit),
+        total: await Message.countDocuments({ conversation: conversationId })
+      }
+    });
+  } catch (error) {
+    console.error('Get messages error:', error);
+    res.status(500).json({ error: 'Server error fetching messages' });
+  }
+};
+
+exports.updateConversation = async (req, res) => {
+  try {
+    const { conversationId } = req.params;
+    const { name, description, settings } = req.body;
+    const userId = req.user.userId;
+
+    // Check if user is admin/owner of conversation
+    const conversation = await Conversation.findOne({
+      _id: conversationId,
+      'participants.user': userId,
+      'participants.role': { $in: ['admin', 'owner'] }
+    });
+
+    if (!conversation) {
+      return res.status(404).json({ error: 'Conversation not found or insufficient permissions' });
+    }
+
+    const updateData = {};
+    if (name) updateData.name = name;
+    if (description !== undefined) updateData.description = description;
+    if (settings) updateData.settings = { ...conversation.settings, ...settings };
+
+    const updatedConversation = await Conversation.findByIdAndUpdate(
+      conversationId,
+      updateData,
+      { new: true }
+    ).populate('participants.user', 'username displayName avatar status');
+
+    res.json({
+      message: 'Conversation updated successfully',
+      conversation: updatedConversation
+    });
+  } catch (error) {
+    console.error('Update conversation error:', error);
+    res.status(500).json({ error: 'Server error updating conversation' });
+  }
+};
+
+exports.generateInviteLink = async (req, res) => {
+  try {
+    const { conversationId } = req.params;
+    const { expiresIn = '7d', maxUses = null } = req.body;
+    const userId = req.user.userId;
+
+    // Check if user is admin/owner
+    const conversation = await Conversation.findOne({
+      _id: conversationId,
+      'participants.user': userId,
+      'participants.role': { $in: ['admin', 'owner'] }
+    });
+
+    if (!conversation) {
+      return res.status(404).json({ error: 'Conversation not found or insufficient permissions' });
+    }
+
+    const inviteCode = generateInviteCode();
+    const expiresAt = new Date();
+    expiresAt.setDate(expiresAt.getDate() + 7); // Default 7 days
+
+    const inviteLink = {
+      code: inviteCode,
+      createdBy: userId,
+      expiresAt,
+      maxUses: maxUses || null,
+      uses: 0,
+      isActive: true
+    };
+
+    conversation.inviteLinks.push(inviteLink);
+    await conversation.save();
+
+    res.json({
+      message: 'Invite link generated successfully',
+      inviteLink: {
+        code: inviteCode,
+        url: `${process.env.CLIENT_URL}/join/${inviteCode}`,
+        expiresAt,
+        maxUses
+      }
+    });
+  } catch (error) {
+    console.error('Generate invite link error:', error);
+    res.status(500).json({ error: 'Server error generating invite link' });
+  }
+};

ysnrfd_messenger/BACKUP/backend/src/controllers/messageController.js

@@ -0,0 +1,199 @@
+const Message = require('../models/Message');
+const Conversation = require('../models/Conversation');
+
+exports.sendMessage = async (req, res) => {
+  try {
+    const { conversationId, content, type = 'text', attachment, replyTo } = req.body;
+    const userId = req.user.userId;
+
+    // Check if user is part of conversation
+    const conversation = await Conversation.findOne({
+      _id: conversationId,
+      'participants.user': userId
+    });
+
+    if (!conversation) {
+      return res.status(404).json({ error: 'Conversation not found' });
+    }
+
+    // Create message
+    const message = new Message({
+      conversation: conversationId,
+      sender: userId,
+      content,
+      type,
+      attachment,
+      replyTo,
+      status: 'sent'
+    });
+
+    await message.save();
+    await message.populate('sender', 'username displayName avatar status');
+    if (replyTo) {
+      await message.populate('replyTo');
+    }
+
+    // Update conversation's updatedAt
+    conversation.updatedAt = new Date();
+    await conversation.save();
+
+    res.status(201).json({
+      message: 'Message sent successfully',
+      message: message
+    });
+  } catch (error) {
+    console.error('Send message error:', error);
+    res.status(500).json({ error: 'Server error sending message' });
+  }
+};
+
+exports.editMessage = async (req, res) => {
+  try {
+    const { messageId } = req.params;
+    const { content } = req.body;
+    const userId = req.user.userId;
+
+    const message = await Message.findOne({
+      _id: messageId,
+      sender: userId
+    });
+
+    if (!message) {
+      return res.status(404).json({ error: 'Message not found' });
+    }
+
+    // Prevent editing messages older than 15 minutes
+    const fifteenMinutesAgo = new Date(Date.now() - 15 * 60 * 1000);
+    if (message.createdAt < fifteenMinutesAgo) {
+      return res.status(400).json({ error: 'Messages can only be edited within 15 minutes of sending' });
+    }
+
+    // Save edit history
+    message.edits.push({
+      content: message.content,
+      editedAt: new Date()
+    });
+
+    message.content = content;
+    message.isEdited = true;
+    message.updatedAt = new Date();
+
+    await message.save();
+    await message.populate('sender', 'username displayName avatar status');
+
+    res.json({
+      message: 'Message updated successfully',
+      message: message
+    });
+  } catch (error) {
+    console.error('Edit message error:', error);
+    res.status(500).json({ error: 'Server error editing message' });
+  }
+};
+
+exports.deleteMessage = async (req, res) => {
+  try {
+    const { messageId } = req.params;
+    const userId = req.user.userId;
+
+    const message = await Message.findOne({
+      _id: messageId,
+      sender: userId
+    });
+
+    if (!message) {
+      return res.status(404).json({ error: 'Message not found' });
+    }
+
+    // Soft delete
+    message.isDeleted = true;
+    message.deletedAt = new Date();
+    message.content = 'This message was deleted';
+    message.attachment = null;
+
+    await message.save();
+
+    res.json({ message: 'Message deleted successfully' });
+  } catch (error) {
+    console.error('Delete message error:', error);
+    res.status(500).json({ error: 'Server error deleting message' });
+  }
+};
+
+exports.reactToMessage = async (req, res) => {
+  try {
+    const { messageId } = req.params;
+    const { emoji } = req.body;
+    const userId = req.user.userId;
+
+    const message = await Message.findById(messageId);
+    if (!message) {
+      return res.status(404).json({ error: 'Message not found' });
+    }
+
+    // Check if user already reacted with this emoji
+    const existingReactionIndex = message.reactions.findIndex(
+      reaction => reaction.user.toString() === userId && reaction.emoji === emoji
+    );
+
+    if (existingReactionIndex > -1) {
+      // Remove reaction
+      message.reactions.splice(existingReactionIndex, 1);
+    } else {
+      // Add reaction
+      message.reactions.push({
+        user: userId,
+        emoji,
+        createdAt: new Date()
+      });
+    }
+
+    await message.save();
+    await message.populate('reactions.user', 'username displayName');
+
+    res.json({
+      message: 'Reaction updated successfully',
+      reactions: message.reactions
+    });
+  } catch (error) {
+    console.error('React to message error:', error);
+    res.status(500).json({ error: 'Server error updating reaction' });
+  }
+};
+
+exports.markAsRead = async (req, res) => {
+  try {
+    const { messageId } = req.params;
+    const userId = req.user.userId;
+
+    const message = await Message.findByIdAndUpdate(
+      messageId,
+      {
+        $addToSet: { readBy: { user: userId, readAt: new Date() } }
+      },
+      { new: true }
+    );
+
+    if (!message) {
+      return res.status(404).json({ error: 'Message not found' });
+    }
+
+    // Update user's last read in conversation
+    await Conversation.updateOne(
+      {
+        _id: message.conversation,
+        'participants.user': userId
+      },
+      {
+        $set: {
+          'participants.$.lastRead': new Date()
+        }
+      }
+    );
+
+    res.json({ message: 'Message marked as read' });
+  } catch (error) {
+    console.error('Mark as read error:', error);
+    res.status(500).json({ error: 'Server error marking message as read' });
+  }
+};

ysnrfd_messenger/BACKUP/backend/src/controllers/uploadController.js

@@ -0,0 +1,113 @@
+const fs = require('fs');
+const path = require('path');
+const { v4: uuidv4 } = require('uuid');
+const { validateFile, getFileType } = require('../utils/fileValidation');
+const { formatFileSize } = require('../utils/helpers');
+
+exports.uploadFile = async (req, res) => {
+  try {
+    if (!req.file) {
+      return res.status(400).json({ error: 'No file provided' });
+    }
+
+    const file = req.file;
+    
+    // Validate file
+    const fileCategory = validateFile(file);
+
+    // Generate file metadata
+    const fileData = {
+      id: uuidv4(),
+      originalName: file.originalname,
+      fileName: file.filename,
+      fileSize: file.size,
+      mimeType: file.mimetype,
+      url: `/uploads/${file.filename}`,
+      uploaderId: req.user.userId,
+      uploadedAt: new Date()
+    };
+
+    // Generate thumbnail for images (simplified - in production use sharp/gm)
+    if (fileCategory === 'image') {
+      fileData.thumbnail = `/uploads/${file.filename}`; // Same file for demo
+    }
+
+    res.json({
+      message: 'File uploaded successfully',
+      file: fileData
+    });
+  } catch (error) {
+    console.error('File upload error:', error);
+    res.status(400).json({ error: error.message });
+  }
+};
+
+exports.getFile = async (req, res) => {
+  try {
+    const { filename } = req.params;
+    const filePath = path.join(__dirname, '../../uploads', filename);
+
+    // Check if file exists
+    if (!fs.existsSync(filePath)) {
+      return res.status(404).json({ error: 'File not found' });
+    }
+
+    // Set appropriate headers
+    const ext = path.extname(filename).toLowerCase();
+    const mimeTypes = {
+      '.jpg': 'image/jpeg',
+      '.jpeg': 'image/jpeg',
+      '.png': 'image/png',
+      '.gif': 'image/gif',
+      '.webp': 'image/webp',
+      '.pdf': 'application/pdf',
+      '.txt': 'text/plain',
+      '.mp3': 'audio/mpeg',
+      '.wav': 'audio/wav',
+      '.ogg': 'audio/ogg'
+    };
+
+    res.setHeader('Content-Type', mimeTypes[ext] || 'application/octet-stream');
+    res.setHeader('Content-Disposition', `inline; filename="${filename}"`);
+
+    // Stream file
+    const fileStream = fs.createReadStream(filePath);
+    fileStream.pipe(res);
+  } catch (error) {
+    console.error('Get file error:', error);
+    res.status(500).json({ error: 'Server error retrieving file' });
+  }
+};
+
+exports.cleanupOrphanedFiles = async (req, res) => {
+  try {
+    // This would typically be a cron job
+    const uploadsDir = path.join(__dirname, '../../uploads');
+    const files = fs.readdirSync(uploadsDir);
+    
+    const orphanedFiles = [];
+    const oneWeekAgo = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000);
+
+    for (const file of files) {
+      const filePath = path.join(uploadsDir, file);
+      const stats = fs.statSync(filePath);
+      
+      // Check if file is older than 1 week and not referenced in any message
+      if (stats.mtime < oneWeekAgo) {
+        const messageWithFile = await Message.findOne({ 'attachment.fileName': file });
+        if (!messageWithFile) {
+          orphanedFiles.push(file);
+          fs.unlinkSync(filePath);
+        }
+      }
+    }
+
+    res.json({
+      message: `Cleaned up ${orphanedFiles.length} orphaned files`,
+      orphanedFiles
+    });
+  } catch (error) {
+    console.error('Cleanup error:', error);
+    res.status(500).json({ error: 'Server error during cleanup' });
+  }
+};

ysnrfd_messenger/BACKUP/backend/src/controllers/userController.js

@@ -0,0 +1,103 @@
+const User = require('../models/User');
+
+exports.searchUsers = async (req, res) => {
+  try {
+    const { username, email } = req.query;
+    
+    if (!username && !email) {
+      return res.status(400).json({ error: 'Username or email is required for search' });
+    }
+
+    const searchQuery = {};
+    if (username) {
+      searchQuery.username = { $regex: username, $options: 'i' };
+    }
+    if (email) {
+      searchQuery.email = { $regex: email, $options: 'i' };
+    }
+
+    // Exclude current user from results
+    searchQuery._id = { $ne: req.user.userId };
+
+    const users = await User.find(searchQuery)
+      .select('username displayName avatar status lastSeen bio')
+      .limit(20);
+
+    res.json({ users });
+  } catch (error) {
+    console.error('User search error:', error);
+    res.status(500).json({ error: 'Server error during user search' });
+  }
+};
+
+exports.getUserProfile = async (req, res) => {
+  try {
+    const { userId } = req.params;
+
+    const user = await User.findById(userId)
+      .select('username displayName avatar status lastSeen bio createdAt');
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
+    res.json({ user });
+  } catch (error) {
+    console.error('Get user profile error:', error);
+    res.status(500).json({ error: 'Server error' });
+  }
+};
+
+exports.updateSettings = async (req, res) => {
+  try {
+    const { theme, notifications } = req.body;
+
+    const updateData = {};
+    if (theme) updateData['settings.theme'] = theme;
+    if (notifications) {
+      if (typeof notifications.enabled !== 'undefined') {
+        updateData['settings.notifications.enabled'] = notifications.enabled;
+      }
+      if (typeof notifications.sound !== 'undefined') {
+        updateData['settings.notifications.sound'] = notifications.sound;
+      }
+      if (typeof notifications.preview !== 'undefined') {
+        updateData['settings.notifications.preview'] = notifications.preview;
+      }
+    }
+
+    const user = await User.findByIdAndUpdate(
+      req.user.userId,
+      { $set: updateData },
+      { new: true, runValidators: true }
+    );
+
+    res.json({
+      message: 'Settings updated successfully',
+      settings: user.settings
+    });
+  } catch (error) {
+    console.error('Update settings error:', error);
+    res.status(500).json({ error: 'Server error during settings update' });
+  }
+};
+
+exports.deleteAccount = async (req, res) => {
+  try {
+    const { confirmation } = req.body;
+    
+    if (confirmation !== 'DELETE MY ACCOUNT') {
+      return res.status(400).json({ 
+        error: 'Please type "DELETE MY ACCOUNT" to confirm account deletion' 
+      });
+    }
+
+    await User.findByIdAndDelete(req.user.userId);
+    
+    res.clearCookie('token');
+    res.json({ message: 'Account deleted successfully' });
+  } catch (error) {
+    console.error('Delete account error:', error);
+    res.status(500).json({ error: 'Server error during account deletion' });
+  }
+};

ysnrfd_messenger/BACKUP/backend/src/middleware/auth.js

@@ -0,0 +1,38 @@
+const jwt = require('jsonwebtoken');
+const User = require('../models/User');
+
+const auth = async (req, res, next) => {
+  try {
+    let token;
+
+    // Check for token in headers
+    if (req.headers.authorization && req.headers.authorization.startsWith('Bearer')) {
+      token = req.headers.authorization.split(' ')[1];
+    } 
+    // Check for token in cookies
+    else if (req.cookies?.token) {
+      token = req.cookies.token;
+    }
+
+    if (!token) {
+      return res.status(401).json({ error: 'No token provided, authorization denied' });
+    }
+
+    // Verify token
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    
+    // Check if user still exists
+    const user = await User.findById(decoded.userId).select('-password');
+    if (!user) {
+      return res.status(401).json({ error: 'User no longer exists' });
+    }
+
+    req.user = decoded;
+    next();
+  } catch (error) {
+    console.error('Auth middleware error:', error);
+    res.status(401).json({ error: 'Token is not valid' });
+  }
+};
+
+module.exports = auth;

ysnrfd_messenger/BACKUP/backend/src/middleware/upload.js

@@ -0,0 +1,64 @@
+const multer = require('multer');
+const path = require('path');
+const { v4: uuidv4 } = require('uuid');
+
+// Configure storage
+const storage = multer.diskStorage({
+  destination: (req, file, cb) => {
+    cb(null, 'uploads/');
+  },
+  filename: (req, file, cb) => {
+    const uniqueName = `${uuidv4()}${path.extname(file.originalname)}`;
+    cb(null, uniqueName);
+  }
+});
+
+// File filter
+const fileFilter = (req, file, cb) => {
+  const allowedTypes = {
+    'image/jpeg': true,
+    'image/jpg': true,
+    'image/png': true,
+    'image/gif': true,
+    'image/webp': true,
+    'audio/mpeg': true,
+    'audio/wav': true,
+    'audio/ogg': true,
+    'audio/mp4': true,
+    'application/pdf': true,
+    'text/plain': true,
+    'text/markdown': true
+  };
+
+  if (allowedTypes[file.mimetype]) {
+    cb(null, true);
+  } else {
+    cb(new Error(`File type ${file.mimetype} is not supported`), false);
+  }
+};
+
+const upload = multer({
+  storage,
+  fileFilter,
+  limits: {
+    fileSize: 50 * 1024 * 1024 // 50MB max file size
+  }
+});
+
+// Error handling middleware for multer
+const handleUploadError = (error, req, res, next) => {
+  if (error instanceof multer.MulterError) {
+    if (error.code === 'LIMIT_FILE_SIZE') {
+      return res.status(400).json({ error: 'File too large. Maximum size is 50MB.' });
+    }
+    return res.status(400).json({ error: `Upload error: ${error.message}` });
+  }
+  
+  if (error) {
+    return res.status(400).json({ error: error.message });
+  }
+  
+  next();
+};
+
+module.exports = { upload, handleUploadError };

ysnrfd_messenger/BACKUP/backend/src/models/Conversation.js

@@ -0,0 +1,74 @@
+const mongoose = require('mongoose');
+
+const conversationSchema = new mongoose.Schema({
+  type: {
+    type: String,
+    enum: ['direct', 'group', 'channel'],
+    required: true
+  },
+  name: {
+    type: String,
+    required: function() { return this.type !== 'direct'; }
+  },
+  description: {
+    type: String,
+    maxlength: 500
+  },
+  avatar: {
+    type: String
+  },
+  createdBy: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'User',
+    required: true
+  },
+  participants: [{
+    user: {
+      type: mongoose.Schema.Types.ObjectId,
+      ref: 'User',
+      required: true
+    },
+    role: {
+      type: String,
+      enum: ['member', 'admin', 'owner'],
+      default: 'member'
+    },
+    joinedAt: {
+      type: Date,
+      default: Date.now
+    },
+    lastRead: {
+      type: Date,
+      default: Date.now
+    }
+  }],
+  settings: {
+    isPublic: {
+      type: Boolean,
+      default: false
+    },
+    allowInvites: {
+      type: Boolean,
+      default: true
+    },
+    adminOnlyMessages: {
+      type: Boolean,
+      default: false
+    }
+  },
+  inviteLinks: [{
+    code: String,
+    createdBy: mongoose.Schema.Types.ObjectId,
+    expiresAt: Date,
+    maxUses: Number,
+    uses: { type: Number, default: 0 },
+    isActive: { type: Boolean, default: true }
+  }]
+}, {
+  timestamps: true
+});
+
+conversationSchema.index({ 'participants.user': 1 });
+conversationSchema.index({ type: 1, updatedAt: -1 });
+
+module.exports = mongoose.model('Conversation', conversationSchema);

ysnrfd_messenger/BACKUP/backend/src/models/Message.js

@@ -0,0 +1,71 @@
+const mongoose = require('mongoose');
+
+const messageSchema = new mongoose.Schema({
+  conversation: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'Conversation',
+    required: true
+  },
+  sender: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'User',
+    required: true
+  },
+  content: {
+    type: String,
+    required: function() { return !this.attachment; }
+  },
+  type: {
+    type: String,
+    enum: ['text', 'image', 'audio', 'file', 'system'],
+    default: 'text'
+  },
+  attachment: {
+    url: String,
+    filename: String,
+    originalName: String,
+    mimeType: String,
+    size: Number,
+    thumbnail: String,
+    duration: Number
+  },
+  replyTo: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'Message'
+  },
+  reactions: [{
+    user: mongoose.Schema.Types.ObjectId,
+    emoji: String,
+    createdAt: { type: Date, default: Date.now }
+  }],
+  edits: [{
+    content: String,
+    editedAt: { type: Date, default: Date.now }
+  }],
+  isEdited: {
+    type: Boolean,
+    default: false
+  },
+  isDeleted: {
+    type: Boolean,
+    default: false
+  },
+  deletedAt: Date,
+  readBy: [{
+    user: mongoose.Schema.Types.ObjectId,
+    readAt: { type: Date, default: Date.now }
+  }],
+  status: {
+    type: String,
+    enum: ['sending', 'sent', 'delivered', 'read'],
+    default: 'sent'
+  }
+}, {
+  timestamps: true
+});
+
+messageSchema.index({ conversation: 1, createdAt: -1 });
+messageSchema.index({ sender: 1 });
+messageSchema.index({ 'readBy.user': 1 });
+
+module.exports = mongoose.model('Message', messageSchema);

ysnrfd_messenger/BACKUP/backend/src/models/User.js

@@ -0,0 +1,81 @@
+const mongoose = require('mongoose');
+const bcrypt = require('bcryptjs');
+
+const userSchema = new mongoose.Schema({
+  username: {
+    type: String,
+    required: true,
+    unique: true,
+    trim: true,
+    minlength: 3,
+    maxlength: 30
+  },
+  email: {
+    type: String,
+    required: true,
+    unique: true,
+    trim: true,
+    lowercase: true
+  },
+  password: {
+    type: String,
+    required: true,
+    minlength: 6
+  },
+  displayName: {
+    type: String,
+    required: true,
+    trim: true,
+    maxlength: 50
+  },
+  avatar: {
+    type: String,
+    default: null
+  },
+  bio: {
+    type: String,
+    maxlength: 500,
+    default: ''
+  },
+  status: {
+    type: String,
+    enum: ['online', 'offline', 'away', 'busy'],
+    default: 'offline'
+  },
+  lastSeen: {
+    type: Date,
+    default: Date.now
+  },
+  settings: {
+    theme: {
+      type: String,
+      enum: ['light', 'dark', 'auto'],
+      default: 'auto'
+    },
+    notifications: {
+      enabled: { type: Boolean, default: true },
+      sound: { type: Boolean, default: true },
+      preview: { type: Boolean, default: true }
+    }
+  }
+}, {
+  timestamps: true
+});
+
+userSchema.pre('save', async function(next) {
+  if (!this.isModified('password')) return next();
+  this.password = await bcrypt.hash(this.password, 12);
+  next();
+});
+
+userSchema.methods.comparePassword = async function(candidatePassword) {
+  return await bcrypt.compare(candidatePassword, this.password);
+};
+
+userSchema.methods.toJSON = function() {
+  const user = this.toObject();
+  delete user.password;
+  return user;
+};
+
+module.exports = mongoose.model('User', userSchema);

ysnrfd_messenger/BACKUP/backend/src/routes/auth.js

@@ -0,0 +1,19 @@
+const express = require('express');
+const {
+  register,
+  login,
+  logout,
+  getMe,
+  updateProfile
+} = require('../controllers/authController');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.post('/register', register);
+router.post('/login', login);
+router.post('/logout', auth, logout);
+router.get('/me', auth, getMe);
+router.put('/profile', auth, updateProfile);
+
+module.exports = router;

ysnrfd_messenger/BACKUP/backend/src/routes/conversations.js

@@ -0,0 +1,21 @@
+const express = require('express');
+const {
+  createConversation,
+  getUserConversations,
+  getConversation,
+  getConversationMessages,
+  updateConversation,
+  generateInviteLink
+} = require('../controllers/conversationController');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.post('/', auth, createConversation);
+router.get('/', auth, getUserConversations);
+router.get('/:conversationId', auth, getConversation);
+router.get('/:conversationId/messages', auth, getConversationMessages);
+router.put('/:conversationId', auth, updateConversation);
+router.post('/:conversationId/invite', auth, generateInviteLink);
+
+module.exports = router;

ysnrfd_messenger/BACKUP/backend/src/routes/messages.js

@@ -0,0 +1,19 @@
+const express = require('express');
+const {
+  sendMessage,
+  editMessage,
+  deleteMessage,
+  reactToMessage,
+  markAsRead
+} = require('../controllers/messageController');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.post('/', auth, sendMessage);
+router.put('/:messageId', auth, editMessage);
+router.delete('/:messageId', auth, deleteMessage);
+router.post('/:messageId/react', auth, reactToMessage);
+router.post('/:messageId/read', auth, markAsRead);
+
+module.exports = router;

ysnrfd_messenger/BACKUP/backend/src/routes/upload.js

@@ -0,0 +1,16 @@
+const express = require('express');
+const {
+  uploadFile,
+  getFile,
+  cleanupOrphanedFiles
+} = require('../controllers/uploadController');
+const { upload, handleUploadError } = require('../middleware/upload');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.post('/', auth, upload.single('file'), handleUploadError, uploadFile);
+router.get('/:filename', getFile);
+router.delete('/cleanup', auth, cleanupOrphanedFiles);
+
+module.exports = router;

ysnrfd_messenger/BACKUP/backend/src/routes/users.js

@@ -0,0 +1,17 @@
+const express = require('express');
+const {
+  searchUsers,
+  getUserProfile,
+  updateSettings,
+  deleteAccount
+} = require('../controllers/userController');
+const auth = require('../middleware/auth');
+
+const router = express.Router();
+
+router.get('/search', auth, searchUsers);
+router.get('/:userId', auth, getUserProfile);
+router.put('/settings', auth, updateSettings);
+router.delete('/account', auth, deleteAccount);
+
+module.exports = router;

ysnrfd_messenger/BACKUP/backend/src/sockets/socketHandlers.js

@@ -0,0 +1,233 @@
+const User = require('../models/User');
+const Conversation = require('../models/Conversation');
+const Message = require('../models/Message');
+
+module.exports = (io, socket) => {
+  const userId = socket.userId;
+
+  console.log(`User ${userId} connected via WebSocket`);
+
+  // Join user to their conversation rooms
+  const joinConversationRooms = async () => {
+    try {
+      const conversations = await Conversation.find({
+        'participants.user': userId
+      });
+      
+      conversations.forEach(conversation => {
+        socket.join(conversation._id.toString());
+        console.log(`User ${userId} joined room ${conversation._id}`);
+      });
+      
+      // Update user status to online
+      await User.findByIdAndUpdate(userId, {
+        status: 'online',
+        lastSeen: new Date()
+      });
+
+      // Notify others that user is online
+      socket.broadcast.emit('user:status', {
+        userId,
+        status: 'online',
+        lastSeen: new Date()
+      });
+    } catch (error) {
+      console.error('Error joining conversation rooms:', error);
+    }
+  };
+
+  // Handle new message
+  const handleMessageSend = async (data) => {
+    try {
+      const { conversationId, content, type, attachment, replyTo } = data;
+
+      // Validate conversation membership
+      const conversation = await Conversation.findOne({
+        _id: conversationId,
+        'participants.user': userId
+      });
+
+      if (!conversation) {
+        socket.emit('message:error', { error: 'Not a member of this conversation' });
+        return;
+      }
+
+      // Create message
+      const message = new Message({
+        conversation: conversationId,
+        sender: userId,
+        content,
+        type: type || 'text',
+        attachment,
+        replyTo,
+        status: 'sent'
+      });
+
+      await message.save();
+
+      // Populate message with sender info
+      await message.populate('sender', 'username displayName avatar status');
+      if (message.replyTo) {
+        await message.populate('replyTo');
+      }
+
+      // Update conversation last activity
+      conversation.updatedAt = new Date();
+      await conversation.save();
+
+      // Emit to all users in conversation
+      io.to(conversationId).emit('message:receive', message);
+
+      // Emit conversation update
+      io.to(conversationId).emit('conversation:updated', {
+        conversationId,
+        lastMessage: message,
+        updatedAt: conversation.updatedAt
+      });
+
+      console.log(`Message sent in conversation ${conversationId} by user ${userId}`);
+
+    } catch (error) {
+      console.error('Error sending message:', error);
+      socket.emit('message:error', { error: 'Failed to send message' });
+    }
+  };
+
+  // Handle typing indicators
+  const handleTypingStart = (data) => {
+    const { conversationId } = data;
+    socket.to(conversationId).emit('typing:start', {
+      userId,
+      conversationId
+    });
+  };
+
+  const handleTypingStop = (data) => {
+    const { conversationId } = data;
+    socket.to(conversationId).emit('typing:stop', {
+      userId,
+      conversationId
+    });
+  };
+
+  // Handle message read receipts
+  const handleMessageRead = async (data) => {
+    try {
+      const { messageId, conversationId } = data;
+
+      const message = await Message.findByIdAndUpdate(
+        messageId,
+        {
+          $addToSet: { 
+            readBy: { 
+              user: userId, 
+              readAt: new Date() 
+            } 
+          }
+        },
+        { new: true }
+      );
+
+      if (!message) {
+        return;
+      }
+
+      // Update user's last read in conversation
+      await Conversation.updateOne(
+        {
+          _id: conversationId,
+          'participants.user': userId
+        },
+        {
+          $set: {
+            'participants.$.lastRead': new Date()
+          }
+        }
+      );
+
+      // Notify others in conversation
+      socket.to(conversationId).emit('message:read', {
+        messageId,
+        userId,
+        readAt: new Date()
+      });
+
+    } catch (error) {
+      console.error('Error updating read receipt:', error);
+    }
+  };
+
+  // Handle message reactions
+  const handleMessageReaction = async (data) => {
+    try {
+      const { messageId, emoji } = data;
+
+      const message = await Message.findById(messageId);
+      if (!message) {
+        return;
+      }
+
+      // Check if user already reacted with this emoji
+      const existingReactionIndex = message.reactions.findIndex(
+        reaction => reaction.user.toString() === userId && reaction.emoji === emoji
+      );
+
+      if (existingReactionIndex > -1) {
+        // Remove reaction
+        message.reactions.splice(existingReactionIndex, 1);
+      } else {
+        // Add reaction
+        message.reactions.push({
+          user: userId,
+          emoji,
+          createdAt: new Date()
+        });
+      }
+
+      await message.save();
+      await message.populate('reactions.user', 'username displayName');
+
+      // Broadcast reaction update
+      io.to(message.conversation.toString()).emit('message:reaction', {
+        messageId,
+        reactions: message.reactions
+      });
+
+    } catch (error) {
+      console.error('Error handling message reaction:', error);
+    }
+  };
+
+  // Handle disconnect
+  const handleDisconnect = async () => {
+    try {
+      console.log(`User ${userId} disconnected`);
+
+      // Update user status to offline
+      await User.findByIdAndUpdate(userId, {
+        status: 'offline',
+        lastSeen: new Date()
+      });
+
+      // Notify others that user is offline
+      socket.broadcast.emit('user:status', {
+        userId,
+        status: 'offline',
+        lastSeen: new Date()
+      });
+    } catch (error) {
+      console.error('Error handling disconnect:', error);
+    }
+  };
+
+  // Register event handlers
+  socket.on('message:send', handleMessageSend);
+  socket.on('typing:start', handleTypingStart);
+  socket.on('typing:stop', handleTypingStop);
+  socket.on('message:read', handleMessageRead);
+  socket.on('message:react', handleMessageReaction);
+  socket.on('disconnect', handleDisconnect);
+
+  // Initialize socket connection
+  joinConversationRooms();
+};

ysnrfd_messenger/BACKUP/backend/src/utils/fileValidation.js

@@ -0,0 +1,49 @@
+const allowedFileTypes = {
+  image: ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'image/webp'],
+  audio: ['audio/mpeg', 'audio/wav', 'audio/ogg', 'audio/mp4', 'audio/x-m4a'],
+  document: ['application/pdf', 'text/plain', 'text/markdown']
+};
+
+const maxFileSizes = {
+  image: 10 * 1024 * 1024, // 10MB
+  audio: 25 * 1024 * 1024, // 25MB
+  document: 50 * 1024 * 1024 // 50MB
+};
+
+const validateFile = (file) => {
+  const { mimetype, size } = file;
+
+  // Check file type
+  let fileCategory = null;
+  for (const [category, types] of Object.entries(allowedFileTypes)) {
+    if (types.includes(mimetype)) {
+      fileCategory = category;
+      break;
+    }
+  }
+
+  if (!fileCategory) {
+    throw new Error(`File type ${mimetype} is not supported`);
+  }
+
+  // Check file size
+  if (size > maxFileSizes[fileCategory]) {
+    throw new Error(`File too large. Maximum size for ${fileCategory} is ${maxFileSizes[fileCategory] / 1024 / 1024}MB`);
+  }
+
+  return fileCategory;
+};
+
+const getFileType = (mimetype) => {
+  if (mimetype.startsWith('image/')) return 'image';
+  if (mimetype.startsWith('audio/')) return 'audio';
+  if (mimetype.startsWith('text/') || mimetype === 'application/pdf') return 'document';
+  return 'file';
+};
+
+module.exports = {
+  validateFile,
+  getFileType,
+  allowedFileTypes,
+  maxFileSizes
+};

ysnrfd_messenger/BACKUP/backend/src/utils/helpers.js

@@ -0,0 +1,31 @@
+const formatFileSize = (bytes) => {
+  if (bytes === 0) return '0 Bytes';
+  
+  const k = 1024;
+  const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+};
+
+const generateInviteCode = () => {
+  return Math.random().toString(36).substring(2, 8).toUpperCase();
+};
+
+const sanitizeUser = (user) => {
+  const userObj = user.toObject ? user.toObject() : user;
+  const { password, __v, ...sanitized } = userObj;
+  return sanitized;
+};
+
+const paginate = (query, page = 1, limit = 20) => {
+  const skip = (page - 1) * limit;
+  return query.skip(skip).limit(limit);
+};
+
+module.exports = {
+  formatFileSize,
+  generateInviteCode,
+  sanitizeUser,
+  paginate
+};

ysnrfd_messenger/BACKUP/frontend/.env

@@ -0,0 +1,3 @@
+VITE_API_URL=http://localhost:5000/api
+VITE_WS_URL=http://localhost:5000
+VITE_APP_NAME=YSNRFD Messenger

ysnrfd_messenger/BACKUP/frontend/.env.example

@@ -0,0 +1,3 @@
+VITE_API_URL=http://localhost:5000/api
+VITE_WS_URL=http://localhost:5000
+VITE_APP_NAME=YSNRFD Messenger

ysnrfd_messenger/BACKUP/frontend/.gitignore

@@ -0,0 +1,7 @@
+node_modules/
+dist/
+.env
+.DS_Store
+*.log
+.vscode/
+.idea/

ysnrfd_messenger/BACKUP/frontend/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>YSNRFD Messenger</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>

ysnrfd_messenger/BACKUP/frontend/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "ysnrfd-messenger-frontend",
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "preview:production": "vite preview --port 4173 --host"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router-dom": "^6.14.1",
+    "socket.io-client": "^4.7.2",
+    "axios": "^1.4.0",
+    "lucide-react": "^0.263.1",
+    "date-fns": "^2.30.0",
+    "react-dropzone": "^14.2.3",
+    "emoji-picker-react": "^4.4.9",
+    "react-tooltip": "^5.21.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.2.15",
+    "@types/react-dom": "^18.2.7",
+    "@vitejs/plugin-react": "^4.0.3",
+    "autoprefixer": "^10.4.14",
+    "postcss": "^8.4.27",
+    "tailwindcss": "^3.3.3",
+    "vite": "^4.4.5",
+    "vite-plugin-pwa": "^0.16.4"
+  }
+}

ysnrfd_messenger/BACKUP/frontend/postcss.config.js

@@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}

ysnrfd_messenger/BACKUP/frontend/public/index.html

@@ -0,0 +1,15 @@
+<!doctype html>
+<html lang="en" class="h-full">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="description" content="YSNRFD Messenger - A modern real-time messaging application">
+    <meta name="theme-color" content="#3b82f6">
+    <title>YSNRFD Messenger</title>
+  </head>
+  <body class="h-full bg-gray-50 dark:bg-gray-900">
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>

ysnrfd_messenger/BACKUP/frontend/public/manifest.json

@@ -0,0 +1,24 @@
+{
+  "name": "YSNRFD Messenger",
+  "short_name": "YSNRFD",
+  "description": "A modern real-time messaging application with file sharing capabilities",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#ffffff",
+  "theme_color": "#3b82f6",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "categories": ["social", "communication"],
+  "lang": "en"
+}

ysnrfd_messenger/BACKUP/frontend/public/sw.js

@@ -0,0 +1,43 @@
+const CACHE_NAME = 'ysnrfd-messenger-v1';
+const urlsToCache = [
+  '/',
+  '/static/js/bundle.js',
+  '/static/css/main.css',
+  '/manifest.json',
+  '/icon-192.png',
+  '/icon-512.png'
+];
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then((cache) => cache.addAll(urlsToCache))
+  );
+});
+
+self.addEventListener('fetch', (event) => {
+  event.respondWith(
+    caches.match(event.request)
+      .then((response) => {
+        if (response) {
+          return response;
+        }
+        return fetch(event.request);
+      }
+    )
+  );
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(
+    caches.keys().then((cacheNames) => {
+      return Promise.all(
+        cacheNames.map((cacheName) => {
+          if (cacheName !== CACHE_NAME) {
+            return caches.delete(cacheName);
+          }
+        })
+      );
+    })
+  );
+});

ysnrfd_messenger/BACKUP/frontend/src/App.css

@@ -0,0 +1,47 @@
+/* Additional custom styles for the app */
+
+/* Smooth transitions for theme switching */
+* {
+  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
+}
+
+/* Custom focus styles */
+.focus-ring:focus {
+  outline: 2px solid #3b82f6;
+  outline-offset: 2px;
+}
+
+/* Mobile optimizations */
+@media (max-width: 768px) {
+  .mobile-hidden {
+    display: none;
+  }
+  
+  .mobile-full {
+    width: 100vw;
+    height: 100vh;
+  }
+}
+
+/* Print styles */
+@media print {
+  .no-print {
+    display: none !important;
+  }
+}
+
+/* High contrast mode support */
+@media (prefers-contrast: high) {
+  .btn-primary {
+    border: 2px solid currentColor;
+  }
+}
+
+/* Reduced motion support */
+@media (prefers-reduced-motion: reduce) {
+  * {
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+  }
+}

ysnrfd_messenger/BACKUP/frontend/src/App.jsx

@@ -0,0 +1,259 @@
+import React, { useState, useEffect } from 'react';
+import { authService, testCors } from './services/api';
+import Dashboard from './components/Dashboard/Dashboard';
+
+function App() {
+  const [user, setUser] = useState(null);
+  const [isLogin, setIsLogin] = useState(true);
+  const [formData, setFormData] = useState({
+    username: '',
+    email: '',
+    password: '',
+    displayName: ''
+  });
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+  const [corsWorking, setCorsWorking] = useState(false);
+
+  // Check if user is already logged in (from localStorage)
+  useEffect(() => {
+    testCorsConnection();
+    checkExistingAuth();
+  }, []);
+
+  const checkExistingAuth = async () => {
+    const token = localStorage.getItem('token');
+    const userData = localStorage.getItem('user');
+    
+    if (token && userData) {
+      try {
+        // Verify token is still valid by calling /api/auth/me
+        const response = await authService.getMe();
+        setUser(response.user);
+      } catch (error) {
+        // Token is invalid, clear storage
+        localStorage.removeItem('token');
+        localStorage.removeItem('user');
+        console.log('Session expired, please login again');
+      }
+    }
+  };
+
+  const testCorsConnection = async () => {
+    try {
+      const result = await testCors();
+      setCorsWorking(true);
+      console.log('CORS test passed:', result);
+    } catch (error) {
+      setCorsWorking(false);
+      console.error('CORS test failed:', error);
+    }
+  };
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setLoading(true);
+    setError('');
+
+    try {
+      let response;
+      if (isLogin) {
+        // Login
+        response = await authService.login({
+          email: formData.email,
+          password: formData.password
+        });
+      } else {
+        // Register
+        response = await authService.register(formData);
+      }
+      
+      // Set the user state and store in localStorage
+      setUser(response.user);
+      localStorage.setItem('token', response.token);
+      localStorage.setItem('user', JSON.stringify(response.user));
+      
+      // Clear form
+      setFormData({
+        username: '',
+        email: '',
+        password: '',
+        displayName: ''
+      });
+
+    } catch (error) {
+      console.error('Auth error details:', error);
+      setError(error.error || 'Something went wrong! Please check the console for details.');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleLogout = () => {
+    setUser(null);
+    localStorage.removeItem('token');
+    localStorage.removeItem('user');
+  };
+
+  const handleChange = (e) => {
+    setFormData(prev => ({
+      ...prev,
+      [e.target.name]: e.target.value
+    }));
+    setError('');
+  };
+
+  // If user is logged in, show the Dashboard
+  if (user) {
+    return <Dashboard user={user} onLogout={handleLogout} />;
+  }
+
+  // Otherwise, show the login/signup form
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-blue-50 to-indigo-100 flex items-center justify-center p-4">
+      <div className="max-w-md w-full bg-white rounded-2xl shadow-xl overflow-hidden">
+        {/* Header */}
+        <div className="bg-gradient-to-r from-blue-600 to-indigo-700 p-8 text-center">
+          <h1 className="text-3xl font-bold text-white mb-2">YSNRFD Messenger</h1>
+          <p className="text-blue-100">Connect with anyone, anywhere</p>
+        </div>
+
+        {/* Form */}
+        <div className="p-8">
+          {/* Connection Status */}
+          <div className={`mb-4 p-3 rounded-lg text-center text-sm ${
+            corsWorking 
+              ? 'bg-green-50 text-green-700 border border-green-200' 
+              : 'bg-yellow-50 text-yellow-700 border border-yellow-200'
+          }`}>
+            {corsWorking ? (
+              <span>✅ Backend connection working!</span>
+            ) : (
+              <span>⚠️ Checking backend connection...</span>
+            )}
+          </div>
+
+          {/* Toggle */}
+          <div className="flex mb-6 bg-gray-100 rounded-lg p-1">
+            <button
+              type="button"
+              onClick={() => setIsLogin(true)}
+              className={`flex-1 py-2 px-4 rounded-md transition-colors ${
+                isLogin ? 'bg-white shadow-sm text-blue-600' : 'text-gray-600'
+              }`}
+            >
+              Sign In
+            </button>
+            <button
+              type="button"
+              onClick={() => setIsLogin(false)}
+              className={`flex-1 py-2 px-4 rounded-md transition-colors ${
+                !isLogin ? 'bg-white shadow-sm text-blue-600' : 'text-gray-600'
+              }`}
+            >
+              Sign Up
+            </button>
+          </div>
+
+          {/* Error Message */}
+          {error && (
+            <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded-lg">
+              <p className="text-red-600 text-sm font-medium">Error: {error}</p>
+            </div>
+          )}
+
+          <form onSubmit={handleSubmit} className="space-y-4">
+            {!isLogin && (
+              <>
+                <div>
+                  <label className="block text-sm font-medium text-gray-700 mb-1">
+                    Username
+                  </label>
+                  <input
+                    type="text"
+                    name="username"
+                    value={formData.username}
+                    onChange={handleChange}
+                    required
+                    className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                    placeholder="Choose a username"
+                  />
+                </div>
+                <div>
+                  <label className="block text-sm font-medium text-gray-700 mb-1">
+                    Display Name
+                  </label>
+                  <input
+                    type="text"
+                    name="displayName"
+                    value={formData.displayName}
+                    onChange={handleChange}
+                    required
+                    className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                    placeholder="Your display name"
+                  />
+                </div>
+              </>
+            )}
+
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Email
+              </label>
+              <input
+                type="email"
+                name="email"
+                value={formData.email}
+                onChange={handleChange}
+                required
+                className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                placeholder="Enter your email"
+              />
+            </div>
+
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Password
+              </label>
+              <input
+                type="password"
+                name="password"
+                value={formData.password}
+                onChange={handleChange}
+                required
+                minLength="6"
+                className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                placeholder="Enter your password"
+              />
+            </div>
+
+            <button
+              type="submit"
+              disabled={loading || !corsWorking}
+              className="w-full bg-blue-600 text-white py-3 px-4 rounded-lg hover:bg-blue-700 transition-colors font-medium disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {loading ? (
+                <div className="flex items-center justify-center">
+                  <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-white mr-2"></div>
+                  {isLogin ? 'Signing In...' : 'Creating Account...'}
+                </div>
+              ) : (
+                isLogin ? 'Sign In' : 'Create Account'
+              )}
+            </button>
+          </form>
+
+          {/* Demo Note */}
+          <div className="mt-6 p-4 bg-blue-50 rounded-lg">
+            <p className="text-sm text-blue-700 text-center">
+              <strong>Welcome to YSNRFD Messenger!</strong><br />
+              After login, you'll see the full messaging interface
+            </p>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export default App;

ysnrfd_messenger/BACKUP/frontend/src/components/Auth/Login.jsx

@@ -0,0 +1,178 @@
+import React, { useState, useEffect } from 'react';
+import { Link, useNavigate } from 'react-router-dom';
+import { Eye, EyeOff, Mail, Lock, MessageCircle } from 'lucide-react';
+import { useAuth } from '../../contexts/AuthContext';
+import { useTheme } from '../../contexts/ThemeContext';
+
+const Login = () => {
+  const [formData, setFormData] = useState({
+    email: '',
+    password: ''
+  });
+  const [showPassword, setShowPassword] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
+  
+  const { login, error, clearError } = useAuth();
+  const { theme, toggleTheme } = useTheme();
+  const navigate = useNavigate();
+
+  useEffect(() => {
+    clearError();
+  }, []);
+
+  const handleChange = (e) => {
+    const { name, value } = e.target;
+    setFormData(prev => ({
+      ...prev,
+      [name]: value
+    }));
+    if (error) clearError();
+  };
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setIsLoading(true);
+
+    try {
+      await login(formData.email, formData.password);
+      navigate('/');
+    } catch (error) {
+      console.error('Login error:', error);
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900 py-12 px-4 sm:px-6 lg:px-8">
+      <div className="max-w-md w-full space-y-8">
+        {/* Header */}
+        <div className="text-center">
+          <div className="flex items-center justify-center space-x-3 mb-6">
+            <MessageCircle className="h-12 w-12 text-primary-500" />
+            <div>
+              <h1 className="text-3xl font-bold text-gray-900 dark:text-white">YSNRFD</h1>
+              <p className="text-sm text-gray-600 dark:text-gray-400">Messenger</p>
+            </div>
+          </div>
+          <h2 className="text-2xl font-bold text-gray-900 dark:text-white">
+            Sign in to your account
+          </h2>
+          <p className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+            Or{' '}
+            <Link
+              to="/register"
+              className="font-medium text-primary-500 hover:text-primary-600 transition-colors"
+            >
+              create a new account
+            </Link>
+          </p>
+        </div>
+
+        {/* Theme Toggle */}
+        <div className="flex justify-center">
+          <button
+            onClick={toggleTheme}
+            className="p-2 rounded-lg bg-gray-200 dark:bg-gray-700 text-gray-600 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+          >
+            {theme === 'dark' ? '🌙' : '☀️'}
+          </button>
+        </div>
+
+        {/* Error Message */}
+        {error && (
+          <div className="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-4">
+            <p className="text-sm text-red-600 dark:text-red-400">{error}</p>
+          </div>
+        )}
+
+        {/* Login Form */}
+        <form className="mt-8 space-y-6" onSubmit={handleSubmit}>
+          <div className="space-y-4">
+            {/* Email Field */}
+            <div>
+              <label htmlFor="email" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Email Address
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <Mail className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="email"
+                  name="email"
+                  type="email"
+                  autoComplete="email"
+                  required
+                  value={formData.email}
+                  onChange={handleChange}
+                  className="input-field pl-10"
+                  placeholder="Enter your email"
+                />
+              </div>
+            </div>
+
+            {/* Password Field */}
+            <div>
+              <label htmlFor="password" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Password
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <Lock className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="password"
+                  name="password"
+                  type={showPassword ? 'text' : 'password'}
+                  autoComplete="current-password"
+                  required
+                  value={formData.password}
+                  onChange={handleChange}
+                  className="input-field pl-10 pr-10"
+                  placeholder="Enter your password"
+                />
+                <button
+                  type="button"
+                  className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                  onClick={() => setShowPassword(!showPassword)}
+                >
+                  {showPassword ? (
+                    <EyeOff className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  ) : (
+                    <Eye className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  )}
+                </button>
+              </div>
+            </div>
+          </div>
+
+          {/* Submit Button */}
+          <button
+            type="submit"
+            disabled={isLoading}
+            className="w-full btn-primary py-3 px-4 text-base font-medium disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+            {isLoading ? (
+              <div className="flex items-center justify-center">
+                <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-white mr-2"></div>
+                Signing in...
+              </div>
+            ) : (
+              'Sign in'
+            )}
+          </button>
+
+          {/* Demo Info */}
+          <div className="text-center">
+            <p className="text-xs text-gray-500 dark:text-gray-400">
+              Demo: Use any email and password to test
+            </p>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+};
+
+export default Login;

ysnrfd_messenger/BACKUP/frontend/src/components/Auth/Register.jsx

@@ -0,0 +1,315 @@
+import React, { useState, useEffect } from 'react';
+import { Link, useNavigate } from 'react-router-dom';
+import { Eye, EyeOff, Mail, Lock, User, MessageCircle } from 'lucide-react';
+import { useAuth } from '../../contexts/AuthContext';
+import { useTheme } from '../../contexts/ThemeContext';
+
+const Register = () => {
+  const [formData, setFormData] = useState({
+    username: '',
+    email: '',
+    password: '',
+    displayName: '',
+    confirmPassword: ''
+  });
+  const [showPassword, setShowPassword] = useState(false);
+  const [showConfirmPassword, setShowConfirmPassword] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
+  const [validationErrors, setValidationErrors] = useState({});
+  
+  const { register, error, clearError } = useAuth();
+  const { theme, toggleTheme } = useTheme();
+  const navigate = useNavigate();
+
+  useEffect(() => {
+    clearError();
+  }, []);
+
+  const validateForm = () => {
+    const errors = {};
+
+    if (formData.username.length < 3) {
+      errors.username = 'Username must be at least 3 characters';
+    }
+
+    if (!formData.email.match(/^\S+@\S+\.\S+$/)) {
+      errors.email = 'Please enter a valid email address';
+    }
+
+    if (formData.password.length < 6) {
+      errors.password = 'Password must be at least 6 characters';
+    }
+
+    if (formData.password !== formData.confirmPassword) {
+      errors.confirmPassword = 'Passwords do not match';
+    }
+
+    if (!formData.displayName.trim()) {
+      errors.displayName = 'Display name is required';
+    }
+
+    setValidationErrors(errors);
+    return Object.keys(errors).length === 0;
+  };
+
+  const handleChange = (e) => {
+    const { name, value } = e.target;
+    setFormData(prev => ({
+      ...prev,
+      [name]: value
+    }));
+
+    // Clear validation error for this field
+    if (validationErrors[name]) {
+      setValidationErrors(prev => ({
+        ...prev,
+        [name]: ''
+      }));
+    }
+
+    if (error) clearError();
+  };
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    
+    if (!validateForm()) {
+      return;
+    }
+
+    setIsLoading(true);
+
+    try {
+      const { confirmPassword, ...registerData } = formData;
+      await register(registerData);
+      navigate('/');
+    } catch (error) {
+      console.error('Registration error:', error);
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900 py-12 px-4 sm:px-6 lg:px-8">
+      <div className="max-w-md w-full space-y-8">
+        {/* Header */}
+        <div className="text-center">
+          <div className="flex items-center justify-center space-x-3 mb-6">
+            <MessageCircle className="h-12 w-12 text-primary-500" />
+            <div>
+              <h1 className="text-3xl font-bold text-gray-900 dark:text-white">YSNRFD</h1>
+              <p className="text-sm text-gray-600 dark:text-gray-400">Messenger</p>
+            </div>
+          </div>
+          <h2 className="text-2xl font-bold text-gray-900 dark:text-white">
+            Create your account
+          </h2>
+          <p className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+            Or{' '}
+            <Link
+              to="/login"
+              className="font-medium text-primary-500 hover:text-primary-600 transition-colors"
+            >
+              sign in to existing account
+            </Link>
+          </p>
+        </div>
+
+        {/* Theme Toggle */}
+        <div className="flex justify-center">
+          <button
+            onClick={toggleTheme}
+            className="p-2 rounded-lg bg-gray-200 dark:bg-gray-700 text-gray-600 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+          >
+            {theme === 'dark' ? '🌙' : '☀️'}
+          </button>
+        </div>
+
+        {/* Error Message */}
+        {error && (
+          <div className="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-4">
+            <p className="text-sm text-red-600 dark:text-red-400">{error}</p>
+          </div>
+        )}
+
+        {/* Registration Form */}
+        <form className="mt-8 space-y-6" onSubmit={handleSubmit}>
+          <div className="space-y-4">
+            {/* Username Field */}
+            <div>
+              <label htmlFor="username" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Username
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <User className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="username"
+                  name="username"
+                  type="text"
+                  autoComplete="username"
+                  required
+                  value={formData.username}
+                  onChange={handleChange}
+                  className={`input-field pl-10 ${validationErrors.username ? 'border-red-500' : ''}`}
+                  placeholder="Choose a username"
+                />
+              </div>
+              {validationErrors.username && (
+                <p className="mt-1 text-sm text-red-600 dark:text-red-400">{validationErrors.username}</p>
+              )}
+            </div>
+
+            {/* Display Name Field */}
+            <div>
+              <label htmlFor="displayName" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Display Name
+              </label>
+              <input
+                id="displayName"
+                name="displayName"
+                type="text"
+                autoComplete="name"
+                required
+                value={formData.displayName}
+                onChange={handleChange}
+                className={`input-field ${validationErrors.displayName ? 'border-red-500' : ''}`}
+                placeholder="Enter your display name"
+              />
+              {validationErrors.displayName && (
+                <p className="mt-1 text-sm text-red-600 dark:text-red-400">{validationErrors.displayName}</p>
+              )}
+            </div>
+
+            {/* Email Field */}
+            <div>
+              <label htmlFor="email" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Email Address
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <Mail className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="email"
+                  name="email"
+                  type="email"
+                  autoComplete="email"
+                  required
+                  value={formData.email}
+                  onChange={handleChange}
+                  className={`input-field pl-10 ${validationErrors.email ? 'border-red-500' : ''}`}
+                  placeholder="Enter your email"
+                />
+              </div>
+              {validationErrors.email && (
+                <p className="mt-1 text-sm text-red-600 dark:text-red-400">{validationErrors.email}</p>
+              )}
+            </div>
+
+            {/* Password Field */}
+            <div>
+              <label htmlFor="password" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Password
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <Lock className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="password"
+                  name="password"
+                  type={showPassword ? 'text' : 'password'}
+                  autoComplete="new-password"
+                  required
+                  value={formData.password}
+                  onChange={handleChange}
+                  className={`input-field pl-10 pr-10 ${validationErrors.password ? 'border-red-500' : ''}`}
+                  placeholder="Create a password"
+                />
+                <button
+                  type="button"
+                  className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                  onClick={() => setShowPassword(!showPassword)}
+                >
+                  {showPassword ? (
+                    <EyeOff className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  ) : (
+                    <Eye className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  )}
+                </button>
+              </div>
+              {validationErrors.password && (
+                <p className="mt-1 text-sm text-red-600 dark:text-red-400">{validationErrors.password}</p>
+              )}
+            </div>
+
+            {/* Confirm Password Field */}
+            <div>
+              <label htmlFor="confirmPassword" className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                Confirm Password
+              </label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                  <Lock className="h-5 w-5 text-gray-400" />
+                </div>
+                <input
+                  id="confirmPassword"
+                  name="confirmPassword"
+                  type={showConfirmPassword ? 'text' : 'password'}
+                  autoComplete="new-password"
+                  required
+                  value={formData.confirmPassword}
+                  onChange={handleChange}
+                  className={`input-field pl-10 pr-10 ${validationErrors.confirmPassword ? 'border-red-500' : ''}`}
+                  placeholder="Confirm your password"
+                />
+                <button
+                  type="button"
+                  className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                  onClick={() => setShowConfirmPassword(!showConfirmPassword)}
+                >
+                  {showConfirmPassword ? (
+                    <EyeOff className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  ) : (
+                    <Eye className="h-5 w-5 text-gray-400 hover:text-gray-600" />
+                  )}
+                </button>
+              </div>
+              {validationErrors.confirmPassword && (
+                <p className="mt-1 text-sm text-red-600 dark:text-red-400">{validationErrors.confirmPassword}</p>
+              )}
+            </div>
+          </div>
+
+          {/* Submit Button */}
+          <button
+            type="submit"
+            disabled={isLoading}
+            className="w-full btn-primary py-3 px-4 text-base font-medium disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+            {isLoading ? (
+              <div className="flex items-center justify-center">
+                <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-white mr-2"></div>
+                Creating account...
+              </div>
+            ) : (
+              'Create Account'
+            )}
+          </button>
+
+          {/* Terms Notice */}
+          <div className="text-center">
+            <p className="text-xs text-gray-500 dark:text-gray-400">
+              By creating an account, you agree to our Terms of Service and Privacy Policy
+            </p>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+};
+
+export default Register;

ysnrfd_messenger/BACKUP/frontend/src/components/Chat/ChatArea.jsx

@@ -0,0 +1,121 @@
+import React, { useState, useEffect, useRef } from 'react';
+import { ArrowLeft, Users, MoreVertical } from 'lucide-react';
+import { useScreenSize } from '../../utils/responsive';
+import { useAuth } from '../../contexts/AuthContext';
+import MessageList from './MessageList';
+import MessageInput from './MessageInput';
+import TypingIndicator from './TypingIndicator';
+
+const ChatArea = ({ conversation, messages, onNewMessage, onConversationUpdate }) => {
+  const { user } = useAuth();
+  const { isMobile } = useScreenSize();
+  const [showSidebar, setShowSidebar] = useState(!isMobile);
+  const [typingUsers, setTypingUsers] = useState([]);
+
+  const getConversationTitle = () => {
+    if (conversation.type === 'direct') {
+      const otherParticipant = conversation.participants.find(p => p.user._id !== user.id);
+      return otherParticipant?.user.displayName || 'Unknown User';
+    } else {
+      return conversation.name;
+    }
+  };
+
+  const getParticipantCount = () => {
+    if (conversation.type === 'direct') {
+      return '1 member';
+    } else {
+      return `${conversation.participants.length} members`;
+    }
+  };
+
+  const handleNewMessage = (message) => {
+    onNewMessage(message);
+    onConversationUpdate(conversation._id, message);
+  };
+
+  const handleTypingStart = (data) => {
+    if (data.userId !== user.id) {
+      setTypingUsers(prev => [...prev.filter(id => id !== data.userId), data.userId]);
+    }
+  };
+
+  const handleTypingStop = (data) => {
+    setTypingUsers(prev => prev.filter(id => id !== data.userId));
+  };
+
+  return (
+    <div className="flex flex-col h-full bg-white dark:bg-gray-800">
+      {/* Chat Header */}
+      <div className="flex items-center justify-between p-4 border-b border-gray-200 dark:border-gray-700">
+        <div className="flex items-center space-x-3">
+          {isMobile && (
+            <button
+              onClick={() => setShowSidebar(true)}
+              className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
+            >
+              <ArrowLeft className="w-5 h-5 text-gray-600 dark:text-gray-400" />
+            </button>
+          )}
+          
+          <div className="flex items-center space-x-3">
+            <div className="w-10 h-10 bg-gradient-to-br from-primary-400 to-primary-600 rounded-full flex items-center justify-center text-white font-medium text-sm">
+              {conversation.type === 'direct' ? (
+                getConversationTitle().charAt(0).toUpperCase()
+              ) : (
+                <Users className="w-5 h-5" />
+              )}
+            </div>
+            <div>
+              <h2 className="text-lg font-semibold text-gray-900 dark:text-white">
+                {getConversationTitle()}
+              </h2>
+              <div className="flex items-center space-x-2 text-sm text-gray-500 dark:text-gray-400">
+                <span>{getParticipantCount()}</span>
+                {typingUsers.length > 0 && (
+                  <>
+                    <span>•</span>
+                    <TypingIndicator userIds={typingUsers} />
+                  </>
+                )}
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div className="flex items-center space-x-2">
+          <button className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors">
+            <MoreVertical className="w-5 h-5 text-gray-600 dark:text-gray-400" />
+          </button>
+        </div>
+      </div>
+
+      {/* Messages Area */}
+      <div className="flex-1 overflow-hidden">
+        <MessageList
+          messages={messages}
+          conversation={conversation}
+          onTypingStart={handleTypingStart}
+          onTypingStop={handleTypingStop}
+        />
+      </div>
+
+      {/* Message Input */}
+      <MessageInput
+        conversation={conversation}
+        onSendMessage={handleNewMessage}
+        onTypingStart={handleTypingStart}
+        onTypingStop={handleTypingStop}
+      />
+
+      {/* Mobile Sidebar Overlay */}
+      {isMobile && showSidebar && (
+        <div className="fixed inset-0 z-40 lg:hidden">
+          <div className="absolute inset-0 bg-black bg-opacity-50" onClick={() => setShowSidebar(false)}></div>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default ChatArea;

ysnrfd_messenger/BACKUP/frontend/src/components/Chat/MessageBubble.jsx

@@ -0,0 +1,242 @@
+import React, { useState } from 'react';
+import { Check, CheckCheck, Download, Eye, Play, FileText, Image, Music } from 'lucide-react';
+import { formatMessageTime } from '../../utils/dateFormatter';
+import { formatFileSize } from '../../utils/fileValidation';
+import { useAuth } from '../../contexts/AuthContext';
+
+const MessageBubble = ({ message, isOwn, showAvatar, onRead }) => {
+  const [imageError, setImageError] = useState(false);
+  const [showImagePreview, setShowImagePreview] = useState(false);
+  const { user } = useAuth();
+
+  const handleDownload = (url, filename) => {
+    // Create a temporary link to trigger download
+    const link = document.createElement('a');
+    link.href = url;
+    link.download = filename;
+    document.body.appendChild(link);
+    link.click();
+    document.body.removeChild(link);
+  };
+
+  const getReadStatus = () => {
+    if (!isOwn) return null;
+    
+    const readByCount = message.readBy?.length || 0;
+    const participantCount = message.conversation?.participants?.length || 1;
+    
+    if (readByCount >= participantCount - 1) {
+      return <CheckCheck className="w-4 h-4 text-blue-500" />;
+    } else if (message.status === 'delivered') {
+      return <CheckCheck className="w-4 h-4 text-gray-400" />;
+    } else {
+      return <Check className="w-4 h-4 text-gray-400" />;
+    }
+  };
+
+  const renderAttachment = () => {
+    if (!message.attachment) return null;
+
+    const { url, originalName, mimeType, size, thumbnail } = message.attachment;
+
+    // Image files
+    if (mimeType.startsWith('image/')) {
+      return (
+        <div className="mt-2">
+          <div className="relative group">
+            <img
+              src={imageError ? '/placeholder-image.jpg' : (thumbnail || url)}
+              alt={originalName}
+              className="max-w-xs rounded-lg cursor-pointer hover:opacity-90 transition-opacity border border-gray-200 dark:border-gray-600"
+              onError={() => setImageError(true)}
+              onClick={() => setShowImagePreview(true)}
+            />
+            <div className="absolute top-2 right-2 opacity-0 group-hover:opacity-100 transition-opacity flex space-x-1">
+              <button
+                onClick={(e) => {
+                  e.stopPropagation();
+                  handleDownload(url, originalName);
+                }}
+                className="bg-black bg-opacity-50 text-white p-1.5 rounded-lg hover:bg-opacity-70 transition-colors"
+                title="Download"
+              >
+                <Download size={16} />
+              </button>
+              <button
+                onClick={(e) => {
+                  e.stopPropagation();
+                  setShowImagePreview(true);
+                }}
+                className="bg-black bg-opacity-50 text-white p-1.5 rounded-lg hover:bg-opacity-70 transition-colors"
+                title="Preview"
+              >
+                <Eye size={16} />
+              </button>
+            </div>
+          </div>
+          <div className="flex justify-between items-center mt-2 text-sm">
+            <span className="text-gray-600 dark:text-gray-400">{originalName}</span>
+            <span className="text-gray-500 dark:text-gray-500">{formatFileSize(size)}</span>
+          </div>
+        </div>
+      );
+    }
+
+    // Audio files
+    if (mimeType.startsWith('audio/')) {
+      return (
+        <div className="mt-2">
+          <div className="flex items-center space-x-3 p-4 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
+            <div className="flex-shrink-0">
+              <Music className="w-8 h-8 text-primary-500" />
+            </div>
+            <div className="flex-1 min-w-0">
+              <p className="text-sm font-medium text-gray-900 dark:text-white truncate">
+                {originalName}
+              </p>
+              <p className="text-sm text-gray-500 dark:text-gray-400">
+                {formatFileSize(size)} • Audio
+              </p>
+            </div>
+            <button
+              onClick={() => handleDownload(url, originalName)}
+              className="flex-shrink-0 p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-600 rounded-lg transition-colors"
+              title="Download"
+            >
+              <Download size={18} />
+            </button>
+          </div>
+        </div>
+      );
+    }
+
+    // Document files (PDF, TXT)
+    return (
+      <div className="mt-2">
+        <div className="flex items-center space-x-3 p-4 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
+          <div className="flex-shrink-0">
+            <FileText className="w-8 h-8 text-primary-500" />
+          </div>
+          <div className="flex-1 min-w-0">
+            <p className="text-sm font-medium text-gray-900 dark:text-white truncate">
+              {originalName}
+            </p>
+            <p className="text-sm text-gray-500 dark:text-gray-400">
+              {formatFileSize(size)} • {mimeType.split('/')[1].toUpperCase()}
+            </p>
+          </div>
+          <button
+            onClick={() => handleDownload(url, originalName)}
+            className="flex-shrink-0 p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-600 rounded-lg transition-colors"
+            title="Download"
+          >
+            <Download size={18} />
+          </button>
+        </div>
+      </div>
+    );
+  };
+
+  // Image Preview Modal
+  if (showImagePreview && message.attachment) {
+    return (
+      <>
+        <div className={`flex ${isOwn ? 'justify-end' : 'justify-start'} mb-4`}>
+          <div className={`max-w-xs lg:max-w-md px-4 py-2 rounded-2xl ${
+            isOwn 
+              ? 'bg-primary-500 text-white rounded-br-none' 
+              : 'bg-gray-200 dark:bg-gray-700 text-gray-900 dark:text-white rounded-bl-none'
+          }`}>
+            {message.content && <p className="whitespace-pre-wrap">{message.content}</p>}
+            {renderAttachment()}
+            <div className={`flex items-center justify-between text-xs mt-1 ${isOwn ? 'text-primary-100' : 'text-gray-500'}`}>
+              <span>{formatMessageTime(message.createdAt)}</span>
+              {getReadStatus()}
+            </div>
+          </div>
+        </div>
+
+        {/* Image Preview Overlay */}
+        <div 
+          className="fixed inset-0 bg-black bg-opacity-90 z-50 flex items-center justify-center p-4"
+          onClick={() => setShowImagePreview(false)}
+        >
+          <div 
+            className="relative max-w-4xl max-h-full"
+            onClick={(e) => e.stopPropagation()}
+          >
+            <img
+              src={message.attachment.url}
+              alt={message.attachment.originalName}
+              className="max-w-full max-h-full object-contain rounded-lg"
+            />
+            <div className="absolute top-4 right-4 flex space-x-2">
+              <button
+                onClick={() => handleDownload(message.attachment.url, message.attachment.originalName)}
+                className="bg-white bg-opacity-20 text-white p-3 rounded-lg hover:bg-opacity-30 transition-colors backdrop-blur-sm"
+                title="Download"
+              >
+                <Download size={20} />
+              </button>
+              <button
+                onClick={() => setShowImagePreview(false)}
+                className="bg-white bg-opacity-20 text-white p-3 rounded-lg hover:bg-opacity-30 transition-colors backdrop-blur-sm"
+                title="Close"
+              >
+                <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                </svg>
+              </button>
+            </div>
+            <div className="absolute bottom-4 left-4 right-4 bg-black bg-opacity-50 text-white p-3 rounded-lg backdrop-blur-sm">
+              <p className="text-sm truncate">{message.attachment.originalName}</p>
+              <p className="text-xs text-gray-300">{formatFileSize(message.attachment.size)}</p>
+            </div>
+          </div>
+        </div>
+      </>
+    );
+  }
+
+  return (
+    <div className={`flex ${isOwn ? 'justify-end' : 'justify-start'} mb-4`}>
+      {!isOwn && showAvatar && (
+        <div className="flex-shrink-0 mr-2 self-end">
+          <div className="w-8 h-8 bg-gradient-to-br from-primary-400 to-primary-600 rounded-full flex items-center justify-center text-white text-xs font-medium">
+            {message.sender?.displayName?.charAt(0).toUpperCase() || 'U'}
+          </div>
+        </div>
+      )}
+      
+      <div className={`max-w-xs lg:max-w-md px-4 py-2 rounded-2xl ${
+        isOwn 
+          ? 'message-bubble-own' 
+          : 'message-bubble-other'
+      }`}>
+        {!isOwn && (
+          <div className="text-xs font-medium text-gray-700 dark:text-gray-300 mb-1">
+            {message.sender?.displayName}
+          </div>
+        )}
+        
+        {message.content && (
+          <p className="whitespace-pre-wrap break-words">{message.content}</p>
+        )}
+        
+        {renderAttachment()}
+        
+        <div className={`flex items-center justify-between text-xs mt-1 ${
+          isOwn ? 'text-primary-100' : 'text-gray-500 dark:text-gray-400'
+        }`}>
+          <span>{formatMessageTime(message.createdAt)}</span>
+          <div className="flex items-center space-x-1">
+            {message.isEdited && <span className="italic">edited</span>}
+            {getReadStatus()}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default MessageBubble;

ysnrfd_messenger/BACKUP/frontend/src/components/Chat/MessageInput.jsx

@@ -0,0 +1,280 @@
+import React, { useState, useRef, useCallback } from 'react';
+import { Send, Paperclip, Smile, X, Image, Music, FileText } from 'lucide-react';
+import { useWebSocket } from '../../hooks/useWebSocket';
+import { useFileUpload } from '../../hooks/useFileUpload';
+import { validateFile, formatFileSize } from '../../utils/fileValidation';
+
+const MessageInput = ({ conversation, onSendMessage, onTypingStart, onTypingStop }) => {
+  const [message, setMessage] = useState('');
+  const [isTyping, setIsTyping] = useState(false);
+  const [fileUpload, setFileUpload] = useState(null);
+  const fileInputRef = useRef();
+  const textareaRef = useRef();
+  
+  const { sendMessage } = useWebSocket();
+  const { uploadFile, uploading, progress, error: uploadError, reset: resetUpload } = useFileUpload();
+
+  const typingTimeoutRef = useRef();
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    
+    if (!message.trim() && !fileUpload) return;
+
+    // Reset typing
+    stopTyping();
+
+    if (fileUpload) {
+      // Send file message
+      await sendFileMessage();
+    } else {
+      // Send text message
+      sendTextMessage();
+    }
+
+    setMessage('');
+    setFileUpload(null);
+    resetUpload();
+  };
+
+  const sendTextMessage = () => {
+    if (!message.trim()) return;
+
+    const messageData = {
+      conversationId: conversation._id,
+      content: message.trim(),
+      type: 'text'
+    };
+
+    sendMessage('message:send', messageData);
+    onSendMessage({
+      ...messageData,
+      _id: `temp-${Date.now()}`,
+      sender: { _id: 'current-user' },
+      createdAt: new Date(),
+      status: 'sending'
+    });
+  };
+
+  const sendFileMessage = async () => {
+    if (!fileUpload) return;
+
+    try {
+      const response = await uploadFile(fileUpload.file);
+      
+      const messageData = {
+        conversationId: conversation._id,
+        content: message.trim() || `Sent ${getFileTypeDescription(fileUpload.file.type)}`,
+        type: getMessageType(fileUpload.file.type),
+        attachment: {
+          url: response.file.url,
+          filename: response.file.fileName,
+          originalName: fileUpload.file.name,
+          mimeType: fileUpload.file.type,
+          size: fileUpload.file.size,
+          thumbnail: response.file.thumbnail
+        }
+      };
+
+      sendMessage('message:send', messageData);
+      onSendMessage({
+        ...messageData,
+        _id: `temp-${Date.now()}`,
+        sender: { _id: 'current-user' },
+        createdAt: new Date(),
+        status: 'sending'
+      });
+    } catch (error) {
+      console.error('Failed to send file message:', error);
+    }
+  };
+
+  const handleInputChange = (e) => {
+    setMessage(e.target.value);
+    
+    if (!isTyping) {
+      startTyping();
+    }
+    
+    // Reset typing timeout
+    clearTimeout(typingTimeoutRef.current);
+    typingTimeoutRef.current = setTimeout(stopTyping, 1000);
+  };
+
+  const startTyping = () => {
+    if (!isTyping) {
+      setIsTyping(true);
+      sendMessage('typing:start', { conversationId: conversation._id });
+    }
+  };
+
+  const stopTyping = () => {
+    if (isTyping) {
+      setIsTyping(false);
+      sendMessage('typing:stop', { conversationId: conversation._id });
+    }
+  };
+
+  const handleFileSelect = async (e) => {
+    const file = e.target.files[0];
+    if (!file) return;
+
+    try {
+      validateFile(file);
+      
+      setFileUpload({
+        file,
+        name: file.name,
+        size: file.size,
+        type: file.type
+      });
+      
+      // Reset file input
+      fileInputRef.current.value = '';
+    } catch (error) {
+      alert(error.message);
+    }
+  };
+
+  const removeFile = () => {
+    setFileUpload(null);
+    resetUpload();
+  };
+
+  const getFileTypeDescription = (mimeType) => {
+    if (mimeType.startsWith('image/')) return 'an image';
+    if (mimeType.startsWith('audio/')) return 'an audio file';
+    if (mimeType === 'application/pdf') return 'a PDF';
+    if (mimeType.startsWith('text/')) return 'a text file';
+    return 'a file';
+  };
+
+  const getMessageType = (mimeType) => {
+    if (mimeType.startsWith('image/')) return 'image';
+    if (mimeType.startsWith('audio/')) return 'audio';
+    return 'file';
+  };
+
+  const getFileIcon = (mimeType) => {
+    if (mimeType.startsWith('image/')) return <Image className="w-4 h-4" />;
+    if (mimeType.startsWith('audio/')) return <Music className="w-4 h-4" />;
+    return <FileText className="w-4 h-4" />;
+  };
+
+  const handleKeyPress = (e) => {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      handleSubmit(e);
+    }
+  };
+
+  const adjustTextareaHeight = () => {
+    const textarea = textareaRef.current;
+    if (textarea) {
+      textarea.style.height = 'auto';
+      textarea.style.height = Math.min(textarea.scrollHeight, 120) + 'px';
+    }
+  };
+
+  return (
+    <div className="border-t border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800 p-4">
+      {/* File Upload Preview */}
+      {fileUpload && (
+        <div className="mb-4 p-3 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
+          <div className="flex items-center justify-between mb-2">
+            <div className="flex items-center space-x-2">
+              {getFileIcon(fileUpload.type)}
+              <span className="text-sm font-medium text-gray-900 dark:text-white truncate">
+                {fileUpload.name}
+              </span>
+            </div>
+            <button
+              onClick={removeFile}
+              className="p-1 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors"
+            >
+              <X className="w-4 h-4 text-gray-500" />
+            </button>
+          </div>
+          
+          <div className="flex items-center justify-between text-sm text-gray-500 dark:text-gray-400">
+            <span>{formatFileSize(fileUpload.size)}</span>
+            
+            {uploading && (
+              <div className="flex items-center space-x-2">
+                <div className="w-20 bg-gray-200 dark:bg-gray-600 rounded-full h-2">
+                  <div 
+                    className="bg-primary-500 h-2 rounded-full transition-all duration-300"
+                    style={{ width: `${progress}%` }}
+                  ></div>
+                </div>
+                <span>{progress}%</span>
+              </div>
+            )}
+          </div>
+
+          {uploadError && (
+            <p className="text-sm text-red-600 dark:text-red-400 mt-1">{uploadError}</p>
+          )}
+        </div>
+      )}
+
+      {/* Hidden File Input */}
+      <input
+        type="file"
+        ref={fileInputRef}
+        onChange={handleFileSelect}
+        accept="image/*,audio/*,.pdf,.txt,.md"
+        className="hidden"
+      />
+
+      <form onSubmit={handleSubmit} className="flex items-end space-x-2">
+        {/* File Attachment Button */}
+        <button
+          type="button"
+          onClick={() => fileInputRef.current?.click()}
+          disabled={uploading}
+          className="p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors disabled:opacity-50"
+          title="Attach file"
+        >
+          <Paperclip size={20} />
+        </button>
+
+        {/* Message Input */}
+        <div className="flex-1 relative">
+          <textarea
+            ref={textareaRef}
+            value={message}
+            onChange={(e) => {
+              handleInputChange(e);
+              adjustTextareaHeight();
+            }}
+            onKeyPress={handleKeyPress}
+            placeholder="Type a message..."
+            className="w-full px-4 py-3 border border-gray-300 dark:border-gray-600 rounded-2xl focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400 resize-none max-h-32"
+            rows={1}
+            disabled={uploading}
+          />
+        </div>
+
+        {/* Send Button */}
+        <button
+          type="submit"
+          disabled={(!message.trim() && !fileUpload) || uploading}
+          className="p-3 bg-primary-500 text-white rounded-full hover:bg-primary-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors flex-shrink-0"
+          title="Send message"
+        >
+          <Send size={20} />
+        </button>
+      </form>
+
+      {/* Typing Indicator */}
+      {isTyping && (
+        <div className="text-xs text-gray-500 dark:text-gray-400 mt-2">
+          Typing...
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default MessageInput;

ysnrfd_messenger/BACKUP/frontend/src/components/Chat/MessageList.jsx

@@ -0,0 +1,155 @@
+import React, { useEffect, useRef, useState } from 'react';
+import { format, isToday, isYesterday, isThisWeek, isThisYear } from 'date-fns';
+import MessageBubble from './MessageBubble';
+import { useAuth } from '../../contexts/AuthContext';
+import { useWebSocket } from '../../hooks/useWebSocket';
+
+const MessageList = ({ messages, conversation, onTypingStart, onTypingStop }) => {
+  const { user } = useAuth();
+  const messagesEndRef = useRef(null);
+  const listRef = useRef(null);
+  const [isNearBottom, setIsNearBottom] = useState(true);
+  const typingTimeoutRef = useRef();
+
+  const { sendMessage } = useWebSocket();
+
+  // Auto-scroll to bottom when new messages arrive
+  useEffect(() => {
+    if (isNearBottom) {
+      scrollToBottom();
+    }
+  }, [messages, isNearBottom]);
+
+  const scrollToBottom = () => {
+    messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
+  };
+
+  const handleScroll = () => {
+    if (!listRef.current) return;
+
+    const { scrollTop, scrollHeight, clientHeight } = listRef.current;
+    const distanceFromBottom = scrollHeight - scrollTop - clientHeight;
+    setIsNearBottom(distanceFromBottom < 100);
+  };
+
+  const groupMessagesByDate = (messages) => {
+    const groups = [];
+    let currentGroup = [];
+    let currentDate = null;
+
+    messages.forEach((message, index) => {
+      const messageDate = new Date(message.createdAt).toDateString();
+      
+      if (messageDate !== currentDate) {
+        if (currentGroup.length > 0) {
+          groups.push({
+            date: currentDate,
+            messages: currentGroup
+          });
+        }
+        currentGroup = [message];
+        currentDate = messageDate;
+      } else {
+        currentGroup.push(message);
+      }
+
+      // Last message
+      if (index === messages.length - 1) {
+        groups.push({
+          date: currentDate,
+          messages: currentGroup
+        });
+      }
+    });
+
+    return groups;
+  };
+
+  const formatDateHeader = (dateString) => {
+    const date = new Date(dateString);
+    
+    if (isToday(date)) {
+      return 'Today';
+    } else if (isYesterday(date)) {
+      return 'Yesterday';
+    } else if (isThisWeek(date)) {
+      return format(date, 'EEEE');
+    } else if (isThisYear(date)) {
+      return format(date, 'MMMM d');
+    } else {
+      return format(date, 'MMMM d, yyyy');
+    }
+  };
+
+  const handleMessageRead = (messageId) => {
+    if (conversation) {
+      sendMessage('message:read', {
+        messageId,
+        conversationId: conversation._id
+      });
+    }
+  };
+
+  const messageGroups = groupMessagesByDate(messages);
+
+  return (
+    <div
+      ref={listRef}
+      onScroll={handleScroll}
+      className="h-full overflow-y-auto chat-scrollbar p-4 space-y-6"
+    >
+      {messageGroups.length === 0 ? (
+        <div className="flex flex-col items-center justify-center h-full text-center">
+          <div className="w-24 h-24 bg-gray-100 dark:bg-gray-700 rounded-full flex items-center justify-center mb-4">
+            <svg className="w-12 h-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1} d="M8 12h.01M12 12h.01M16 12h.01M21 12c0 4.418-4.03 8-9 8a9.863 9.863 0 01-4.255-.949L3 20l1.395-3.72C3.512 15.042 3 13.574 3 12c0-4.418 4.03-8 9-8s9 3.582 9 8z" />
+            </svg>
+          </div>
+          <h3 className="text-lg font-medium text-gray-900 dark:text-white mb-2">
+            No messages yet
+          </h3>
+          <p className="text-gray-500 dark:text-gray-400 max-w-sm">
+            Send a message to start the conversation. This is the beginning of your direct message history with {conversation.type === 'direct' ? 'this user' : 'the group'}.
+          </p>
+        </div>
+      ) : (
+        messageGroups.map((group, groupIndex) => (
+          <div key={group.date} className="space-y-4">
+            {/* Date Header */}
+            <div className="flex items-center justify-center">
+              <div className="bg-gray-100 dark:bg-gray-700 px-3 py-1 rounded-full">
+                <span className="text-xs font-medium text-gray-600 dark:text-gray-300">
+                  {formatDateHeader(group.date)}
+                </span>
+              </div>
+            </div>
+
+            {/* Messages */}
+            {group.messages.map((message, messageIndex) => {
+              const isOwn = message.sender?._id === user.id;
+              const showAvatar = !isOwn && (
+                messageIndex === group.messages.length - 1 ||
+                group.messages[messageIndex + 1]?.sender?._id !== message.sender?._id
+              );
+
+              return (
+                <MessageBubble
+                  key={message._id}
+                  message={message}
+                  isOwn={isOwn}
+                  showAvatar={showAvatar}
+                  onRead={handleMessageRead}
+                />
+              );
+            })}
+          </div>
+        ))
+      )}
+      
+      {/* Scroll anchor */}
+      <div ref={messagesEndRef} />
+    </div>
+  );
+};
+
+export default MessageList;

ysnrfd_messenger/BACKUP/frontend/src/components/Chat/TypingIndicator.jsx

@@ -0,0 +1,18 @@
+import React from 'react';
+
+const TypingIndicator = ({ userIds = [] }) => {
+  if (userIds.length === 0) return null;
+
+  return (
+    <div className="flex items-center space-x-1 text-sm text-gray-500 dark:text-gray-400">
+      <span>Typing</span>
+      <div className="typing-indicator">
+        <div className="typing-dot"></div>
+        <div className="typing-dot"></div>
+        <div className="typing-dot"></div>
+      </div>
+    </div>
+  );
+};
+
+export default TypingIndicator;

ysnrfd_messenger/BACKUP/frontend/src/components/Dashboard/Dashboard.jsx

@@ -0,0 +1,254 @@
+import React, { useState } from 'react';
+import { LogOut, MessageCircle, Users, Search, Image, Music } from 'lucide-react';
+import MessageInput from '/Users/ysnrfd/Desktop/ysnrfd_messenger2/frontend/src/components/Chat/MessageInput';
+
+const Dashboard = ({ user, onLogout }) => {
+  const [selectedConversation, setSelectedConversation] = useState(null);
+  const [messages, setMessages] = useState([]);
+
+  // Mock conversations data
+  const conversations = [
+    {
+      id: 1,
+      name: 'John Doe',
+      lastMessage: 'Hey, how are you?',
+      unread: 2,
+      online: true
+    },
+    {
+      id: 2,
+      name: 'Sarah Smith',
+      lastMessage: 'Meeting at 3 PM',
+      unread: 0,
+      online: false
+    },
+    {
+      id: 3,
+      name: 'Work Group',
+      lastMessage: 'Mike: Project update ready',
+      unread: 5,
+      online: true,
+      isGroup: true
+    }
+  ];
+
+  // Mock messages data
+  const mockMessages = [
+    { id: 1, text: 'Hello there!', sender: 'other', time: '10:30 AM' },
+    { id: 2, text: 'Hi! How are you doing?', sender: 'me', time: '10:31 AM' },
+    { id: 3, text: 'I\'m good, thanks! Working on the new project.', sender: 'other', time: '10:32 AM' },
+    { id: 4, text: 'That sounds great! Let me know if you need any help.', sender: 'me', time: '10:33 AM' }
+  ];
+
+  const handleSendMessage = (messageData) => {
+    const message = {
+      id: Date.now(),
+      text: messageData.content,
+      sender: 'me',
+      time: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }),
+      type: messageData.type,
+      attachment: messageData.attachment
+    };
+
+    setMessages([...messages, message]);
+  };
+
+  const handleSelectConversation = (conversation) => {
+    setSelectedConversation(conversation);
+    setMessages(mockMessages); // Load mock messages
+  };
+
+  // Render message with attachment
+  const renderMessage = (message) => {
+    if (message.attachment) {
+      return (
+        <div className="space-y-2">
+          <p className="text-sm">{message.text}</p>
+          <div className="p-3 bg-blue-50 rounded-lg border border-blue-200">
+            <div className="flex items-center space-x-2 text-sm text-blue-700">
+              {message.attachment.mimeType.startsWith('image/') && <Image className="w-4 h-4" />}
+              {message.attachment.mimeType.startsWith('audio/') && <Music className="w-4 h-4" />}
+              <span className="font-medium">{message.attachment.originalName}</span>
+              <span className="text-blue-600">({formatFileSize(message.attachment.size)})</span>
+            </div>
+          </div>
+        </div>
+      );
+    }
+    
+    return <p className="text-sm">{message.text}</p>;
+  };
+
+  const formatFileSize = (bytes) => {
+    if (bytes === 0) return '0 Bytes';
+    const k = 1024;
+    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+  };
+
+  return (
+    <div className="flex h-screen bg-gray-50">
+      {/* Sidebar */}
+      <div className="w-80 bg-white border-r border-gray-200 flex flex-col">
+        {/* Header */}
+        <div className="p-4 border-b border-gray-200">
+          <div className="flex items-center justify-between">
+            <div className="flex items-center space-x-3">
+              <div className="w-10 h-10 bg-gradient-to-br from-blue-500 to-purple-600 rounded-full flex items-center justify-center">
+                <MessageCircle className="w-6 h-6 text-white" />
+              </div>
+              <div>
+                <h1 className="text-lg font-bold text-gray-900">YSNRFD Messenger</h1>
+                <p className="text-xs text-gray-500">Welcome, {user.displayName}</p>
+              </div>
+            </div>
+            <button
+              onClick={onLogout}
+              className="p-2 hover:bg-gray-100 rounded-lg transition-colors"
+              title="Logout"
+            >
+              <LogOut className="w-5 h-5 text-gray-600" />
+            </button>
+          </div>
+
+          {/* Search */}
+          <div className="mt-4 relative">
+            <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
+            <input
+              type="text"
+              placeholder="Search conversations..."
+              className="w-full pl-10 pr-4 py-2 bg-gray-100 border border-gray-200 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent text-sm"
+            />
+          </div>
+        </div>
+
+        {/* Conversations List */}
+        <div className="flex-1 overflow-y-auto">
+          {conversations.map((conversation) => (
+            <div
+              key={conversation.id}
+              onClick={() => handleSelectConversation(conversation)}
+              className={`p-4 border-b border-gray-100 hover:bg-gray-50 cursor-pointer transition-colors ${
+                selectedConversation?.id === conversation.id ? 'bg-blue-50 border-blue-200' : ''
+              }`}
+            >
+              <div className="flex items-center space-x-3">
+                <div className="relative">
+                  <div className="w-12 h-12 bg-gradient-to-br from-blue-400 to-blue-600 rounded-full flex items-center justify-center text-white font-medium">
+                    {conversation.isGroup ? (
+                      <Users className="w-6 h-6" />
+                    ) : (
+                      conversation.name.charAt(0)
+                    )}
+                  </div>
+                  {conversation.online && (
+                    <div className="absolute bottom-0 right-0 w-3 h-3 bg-green-500 border-2 border-white rounded-full"></div>
+                  )}
+                </div>
+                <div className="flex-1 min-w-0">
+                  <div className="flex items-center justify-between">
+                    <h3 className="text-sm font-semibold text-gray-900 truncate">
+                      {conversation.name}
+                    </h3>
+                    <span className="text-xs text-gray-500">10:30 AM</span>
+                  </div>
+                  <p className="text-sm text-gray-600 truncate">
+                    {conversation.lastMessage}
+                  </p>
+                </div>
+                {conversation.unread > 0 && (
+                  <div className="bg-blue-500 text-white text-xs rounded-full w-5 h-5 flex items-center justify-center">
+                    {conversation.unread}
+                  </div>
+                )}
+              </div>
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* Main Chat Area */}
+      <div className="flex-1 flex flex-col">
+        {selectedConversation ? (
+          <>
+            {/* Chat Header */}
+            <div className="bg-white border-b border-gray-200 p-4">
+              <div className="flex items-center justify-between">
+                <div className="flex items-center space-x-3">
+                  <div className="w-10 h-10 bg-gradient-to-br from-blue-400 to-blue-600 rounded-full flex items-center justify-center text-white font-medium">
+                    {selectedConversation.isGroup ? (
+                      <Users className="w-6 h-6" />
+                    ) : (
+                      selectedConversation.name.charAt(0)
+                    )}
+                  </div>
+                  <div>
+                    <h2 className="text-lg font-semibold text-gray-900">
+                      {selectedConversation.name}
+                    </h2>
+                    <p className="text-sm text-gray-500">
+                      {selectedConversation.online ? 'Online' : 'Last seen recently'}
+                    </p>
+                  </div>
+                </div>
+              </div>
+            </div>
+
+            {/* Messages Area */}
+            <div className="flex-1 overflow-y-auto p-4 space-y-4 bg-gray-50">
+              {messages.map((message) => (
+                <div
+                  key={message.id}
+                  className={`flex ${message.sender === 'me' ? 'justify-end' : 'justify-start'}`}
+                >
+                  <div
+                    className={`max-w-xs lg:max-w-md px-4 py-2 rounded-2xl ${
+                      message.sender === 'me'
+                        ? 'bg-blue-500 text-white rounded-br-none'
+                        : 'bg-white text-gray-900 rounded-bl-none shadow-sm'
+                    }`}
+                  >
+                    {renderMessage(message)}
+                    <p
+                      className={`text-xs mt-1 ${
+                        message.sender === 'me' ? 'text-blue-100' : 'text-gray-500'
+                      }`}
+                    >
+                      {message.time}
+                    </p>
+                  </div>
+                </div>
+              ))}
+            </div>
+
+            {/* Message Input */}
+            <MessageInput onSendMessage={handleSendMessage} />
+          </>
+        ) : (
+          <div className="flex-1 flex items-center justify-center bg-gray-50">
+            <div className="text-center p-8">
+              <div className="w-24 h-24 mx-auto mb-6 bg-gradient-to-br from-blue-100 to-blue-200 rounded-full flex items-center justify-center">
+                <MessageCircle className="w-12 h-12 text-blue-500" />
+              </div>
+              <h3 className="text-2xl font-bold text-gray-900 mb-2">
+                Welcome to YSNRFD Messenger
+              </h3>
+              <p className="text-gray-600 mb-6 max-w-md">
+                Select a conversation from the sidebar to start messaging, or create a new one to begin connecting.
+              </p>
+              <div className="space-y-3 text-sm text-gray-500">
+                <p>✅ Real-time messaging</p>
+                <p>✅ File sharing</p>
+                <p>✅ Group chats</p>
+                <p>✅ Read receipts</p>
+              </div>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default Dashboard;

ysnrfd_messenger/BACKUP/frontend/src/components/Dashboard/Sidebar.jsx

@@ -0,0 +1,237 @@
+import React, { useState, useMemo } from 'react';
+import { Search, LogOut, Settings, UserPlus, MessageCircle, Users } from 'lucide-react';
+import { useAuth } from '../../contexts/AuthContext';
+import { formatConversationTime } from '../../utils/dateFormatter';
+
+const Sidebar = ({ 
+  conversations, 
+  selectedConversation, 
+  onSelectConversation, 
+  onNewConversation,
+  onlineUsers 
+}) => {
+  const { user, logout } = useAuth();
+  const [searchTerm, setSearchTerm] = useState('');
+
+  const filteredConversations = useMemo(() => {
+    if (!searchTerm) return conversations;
+    
+    return conversations.filter(conv => {
+      if (conv.type === 'direct') {
+        const otherParticipant = conv.participants.find(p => p.user._id !== user.id);
+        return otherParticipant?.user.displayName.toLowerCase().includes(searchTerm.toLowerCase()) ||
+               otherParticipant?.user.username.toLowerCase().includes(searchTerm.toLowerCase());
+      } else {
+        return conv.name.toLowerCase().includes(searchTerm.toLowerCase());
+      }
+    });
+  }, [conversations, searchTerm, user.id]);
+
+  const getConversationDisplay = (conversation) => {
+    if (conversation.type === 'direct') {
+      const otherParticipant = conversation.participants.find(p => p.user._id !== user.id);
+      return {
+        name: otherParticipant?.user.displayName || 'Unknown User',
+        avatar: otherParticipant?.user.avatar,
+        status: otherParticipant?.user.status,
+        isOnline: onlineUsers.has(otherParticipant?.user._id)
+      };
+    } else {
+      return {
+        name: conversation.name,
+        avatar: conversation.avatar,
+        isGroup: true
+      };
+    }
+  };
+
+  const getLastMessagePreview = (conversation) => {
+    if (!conversation.lastMessage) return 'No messages yet';
+    
+    const lastMessage = conversation.lastMessage;
+    if (lastMessage.type === 'image') return '📷 Image';
+    if (lastMessage.type === 'audio') return '🎵 Audio';
+    if (lastMessage.type === 'file') return '📎 File';
+    
+    return lastMessage.content.length > 30 
+      ? lastMessage.content.substring(0, 30) + '...' 
+      : lastMessage.content;
+  };
+
+  const handleLogout = async () => {
+    if (window.confirm('Are you sure you want to logout?')) {
+      await logout();
+    }
+  };
+
+  return (
+    <div className="flex flex-col h-full bg-white dark:bg-gray-800">
+      {/* Header */}
+      <div className="p-4 border-b border-gray-200 dark:border-gray-700">
+        <div className="flex items-center justify-between mb-4">
+          <div className="flex items-center space-x-3">
+            <div className="w-10 h-10 bg-primary-500 rounded-full flex items-center justify-center">
+              <MessageCircle className="w-6 h-6 text-white" />
+            </div>
+            <div>
+              <h1 className="text-lg font-bold text-gray-900 dark:text-white">YSNRFD</h1>
+              <p className="text-xs text-gray-500 dark:text-gray-400">Messenger</p>
+            </div>
+          </div>
+          
+          <div className="flex items-center space-x-2">
+            <button
+              onClick={onNewConversation}
+              className="p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
+              title="New conversation"
+            >
+              <UserPlus size={20} />
+            </button>
+            <button
+              onClick={handleLogout}
+              className="p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
+              title="Logout"
+            >
+              <LogOut size={20} />
+            </button>
+          </div>
+        </div>
+
+        {/* Search Bar */}
+        <div className="relative">
+          <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
+          <input
+            type="text"
+            placeholder="Search conversations..."
+            value={searchTerm}
+            onChange={(e) => setSearchTerm(e.target.value)}
+            className="w-full pl-10 pr-4 py-2 bg-gray-100 dark:bg-gray-700 border border-gray-200 dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent text-sm text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400"
+          />
+        </div>
+      </div>
+
+      {/* Conversations List */}
+      <div className="flex-1 overflow-y-auto scrollbar-thin">
+        {filteredConversations.length === 0 ? (
+          <div className="flex flex-col items-center justify-center h-full p-8 text-center">
+            <Users className="w-16 h-16 text-gray-300 dark:text-gray-600 mb-4" />
+            <h3 className="text-lg font-medium text-gray-900 dark:text-white mb-2">
+              {searchTerm ? 'No conversations found' : 'No conversations yet'}
+            </h3>
+            <p className="text-gray-500 dark:text-gray-400 mb-4">
+              {searchTerm 
+                ? 'Try adjusting your search terms' 
+                : 'Start a new conversation to begin messaging'
+              }
+            </p>
+            {!searchTerm && (
+              <button
+                onClick={onNewConversation}
+                className="btn-primary"
+              >
+                Start Conversation
+              </button>
+            )}
+          </div>
+        ) : (
+          <div className="p-2">
+            {filteredConversations.map((conversation) => {
+              const display = getConversationDisplay(conversation);
+              const isSelected = selectedConversation?._id === conversation._id;
+              
+              return (
+                <div
+                  key={conversation._id}
+                  onClick={() => onSelectConversation(conversation)}
+                  className={`sidebar-item ${isSelected ? 'sidebar-item-active' : ''}`}
+                >
+                  {/* Avatar */}
+                  <div className="relative flex-shrink-0">
+                    <div className="w-12 h-12 bg-gradient-to-br from-primary-400 to-primary-600 rounded-full flex items-center justify-center text-white font-medium text-sm">
+                      {display.avatar ? (
+                        <img
+                          src={display.avatar}
+                          alt={display.name}
+                          className="w-12 h-12 rounded-full object-cover"
+                        />
+                      ) : (
+                        display.name.charAt(0).toUpperCase()
+                      )}
+                    </div>
+                    
+                    {/* Online Status Indicator */}
+                    {display.isOnline && (
+                      <div className="absolute bottom-0 right-0 w-3 h-3 bg-green-500 border-2 border-white dark:border-gray-800 rounded-full"></div>
+                    )}
+                    
+                    {/* Group Indicator */}
+                    {display.isGroup && (
+                      <div className="absolute bottom-0 right-0 w-3 h-3 bg-blue-500 border-2 border-white dark:border-gray-800 rounded-full flex items-center justify-center">
+                        <Users className="w-2 h-2 text-white" />
+                      </div>
+                    )}
+                  </div>
+
+                  {/* Conversation Info */}
+                  <div className="flex-1 min-w-0">
+                    <div className="flex items-center justify-between">
+                      <h3 className="text-sm font-semibold text-gray-900 dark:text-white truncate">
+                        {display.name}
+                      </h3>
+                      {conversation.lastMessage && (
+                        <span className="text-xs text-gray-500 dark:text-gray-400 whitespace-nowrap">
+                          {formatConversationTime(conversation.lastMessage.createdAt)}
+                        </span>
+                      )}
+                    </div>
+                    
+                    <div className="flex items-center justify-between">
+                      <p className="text-sm text-gray-500 dark:text-gray-400 truncate">
+                        {getLastMessagePreview(conversation)}
+                      </p>
+                      
+                      {/* Unread message indicator */}
+                      {conversation.unreadCount > 0 && (
+                        <span className="bg-primary-500 text-white text-xs rounded-full w-5 h-5 flex items-center justify-center flex-shrink-0">
+                          {conversation.unreadCount}
+                        </span>
+                      )}
+                    </div>
+                  </div>
+                </div>
+              );
+            })}
+          </div>
+        )}
+      </div>
+
+      {/* User Profile Footer */}
+      <div className="p-4 border-t border-gray-200 dark:border-gray-700">
+        <div className="flex items-center space-x-3">
+          <div className="w-10 h-10 bg-gradient-to-br from-primary-400 to-primary-600 rounded-full flex items-center justify-center text-white font-medium text-sm">
+            {user.avatar ? (
+              <img
+                src={user.avatar}
+                alt={user.displayName}
+                className="w-10 h-10 rounded-full object-cover"
+              />
+            ) : (
+              user.displayName.charAt(0).toUpperCase()
+            )}
+          </div>
+          <div className="flex-1 min-w-0">
+            <h3 className="text-sm font-semibold text-gray-900 dark:text-white truncate">
+              {user.displayName}
+            </h3>
+            <p className="text-xs text-gray-500 dark:text-gray-400 truncate">
+              @{user.username}
+            </p>
+          </div>
+          <div className="w-2 h-2 bg-green-500 rounded-full" title="Online"></div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default Sidebar;

ysnrfd_messenger/BACKUP/frontend/src/components/Dashboard/UserSearch.jsx

@@ -0,0 +1,256 @@
+import React, { useState, useEffect } from 'react';
+import { Search, X, User, UserPlus, MessageCircle } from 'lucide-react';
+import { userService, conversationService } from '../../services/api';
+import { useAuth } from '../../contexts/AuthContext';
+
+const UserSearch = ({ onClose, onConversationCreated }) => {
+  const [searchTerm, setSearchTerm] = useState('');
+  const [searchResults, setSearchResults] = useState([]);
+  const [loading, setLoading] = useState(false);
+  const [selectedUsers, setSelectedUsers] = useState(new Set());
+  const [conversationName, setConversationName] = useState('');
+  const [creating, setCreating] = useState(false);
+  const { user } = useAuth();
+
+  useEffect(() => {
+    const searchUsers = async () => {
+      if (!searchTerm.trim()) {
+        setSearchResults([]);
+        return;
+      }
+
+      setLoading(true);
+      try {
+        const response = await userService.search(searchTerm);
+        // Filter out current user and already selected users
+        const filteredResults = response.users.filter(
+          u => u._id !== user.id && !selectedUsers.has(u._id)
+        );
+        setSearchResults(filteredResults);
+      } catch (error) {
+        console.error('Search error:', error);
+        setSearchResults([]);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    const timeoutId = setTimeout(searchUsers, 300);
+    return () => clearTimeout(timeoutId);
+  }, [searchTerm, selectedUsers, user.id]);
+
+  const handleUserSelect = (user) => {
+    setSelectedUsers(prev => {
+      const newSet = new Set(prev);
+      if (newSet.has(user._id)) {
+        newSet.delete(user._id);
+      } else {
+        newSet.add(user._id);
+      }
+      return newSet;
+    });
+    setSearchTerm('');
+    setSearchResults([]);
+  };
+
+  const handleRemoveUser = (userId) => {
+    setSelectedUsers(prev => {
+      const newSet = new Set(prev);
+      newSet.delete(userId);
+      return newSet;
+    });
+  };
+
+  const createConversation = async () => {
+    if (selectedUsers.size === 0) return;
+
+    setCreating(true);
+    try {
+      const participantIds = Array.from(selectedUsers);
+      
+      let conversationData;
+      if (participantIds.length === 1) {
+        // Direct message
+        conversationData = {
+          type: 'direct',
+          participantIds
+        };
+      } else {
+        // Group chat
+        conversationData = {
+          type: 'group',
+          name: conversationName || `Group with ${participantIds.length + 1} people`,
+          participantIds
+        };
+      }
+
+      const response = await conversationService.create(conversationData);
+      onConversationCreated(response.conversation);
+    } catch (error) {
+      console.error('Create conversation error:', error);
+      alert(error.error || 'Failed to create conversation');
+    } finally {
+      setCreating(false);
+    }
+  };
+
+  const getSelectedUsersInfo = () => {
+    return Array.from(selectedUsers).map(userId => {
+      // In a real app, you'd have the user objects cached
+      return { _id: userId, displayName: 'User', username: 'user' };
+    });
+  };
+
+  return (
+    <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 p-4">
+      <div className="bg-white dark:bg-gray-800 rounded-xl w-full max-w-md max-h-[90vh] overflow-hidden">
+        {/* Header */}
+        <div className="flex items-center justify-between p-6 border-b border-gray-200 dark:border-gray-700">
+          <div className="flex items-center space-x-3">
+            <MessageCircle className="w-6 h-6 text-primary-500" />
+            <h2 className="text-xl font-bold text-gray-900 dark:text-white">
+              New Conversation
+            </h2>
+          </div>
+          <button
+            onClick={onClose}
+            className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
+          >
+            <X className="w-5 h-5 text-gray-500 dark:text-gray-400" />
+          </button>
+        </div>
+
+        <div className="p-6 space-y-4">
+          {/* Search Input */}
+          <div className="relative">
+            <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
+            <input
+              type="text"
+              placeholder="Search users by username..."
+              value={searchTerm}
+              onChange={(e) => setSearchTerm(e.target.value)}
+              className="w-full pl-10 pr-4 py-3 bg-gray-50 dark:bg-gray-700 border border-gray-200 dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400"
+            />
+          </div>
+
+          {/* Selected Users */}
+          {selectedUsers.size > 0 && (
+            <div className="space-y-2">
+              <h3 className="text-sm font-medium text-gray-700 dark:text-gray-300">
+                Selected Users ({selectedUsers.size})
+              </h3>
+              <div className="flex flex-wrap gap-2">
+                {getSelectedUsersInfo().map(user => (
+                  <div
+                    key={user._id}
+                    className="flex items-center space-x-2 bg-primary-100 dark:bg-primary-900 px-3 py-1 rounded-full"
+                  >
+                    <span className="text-sm text-primary-700 dark:text-primary-300">
+                      {user.displayName}
+                    </span>
+                    <button
+                      onClick={() => handleRemoveUser(user._id)}
+                      className="text-primary-500 hover:text-primary-700"
+                    >
+                      <X className="w-3 h-3" />
+                    </button>
+                  </div>
+                ))}
+              </div>
+            </div>
+          )}
+
+          {/* Group Name Input (for groups) */}
+          {selectedUsers.size > 1 && (
+            <div>
+              <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
+                Group Name
+              </label>
+              <input
+                type="text"
+                placeholder="Enter group name..."
+                value={conversationName}
+                onChange={(e) => setConversationName(e.target.value)}
+                className="w-full px-4 py-3 bg-gray-50 dark:bg-gray-700 border border-gray-200 dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400"
+              />
+            </div>
+          )}
+
+          {/* Search Results */}
+          <div className="max-h-60 overflow-y-auto">
+            {loading ? (
+              <div className="flex items-center justify-center py-8">
+                <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary-500"></div>
+              </div>
+            ) : searchResults.length > 0 ? (
+              <div className="space-y-2">
+                <h3 className="text-sm font-medium text-gray-700 dark:text-gray-300">
+                  Search Results
+                </h3>
+                {searchResults.map(user => (
+                  <div
+                    key={user._id}
+                    onClick={() => handleUserSelect(user)}
+                    className="flex items-center space-x-3 p-3 hover:bg-gray-50 dark:hover:bg-gray-700 rounded-lg cursor-pointer transition-colors"
+                  >
+                    <div className="w-10 h-10 bg-gradient-to-br from-primary-400 to-primary-600 rounded-full flex items-center justify-center text-white font-medium text-sm">
+                      {user.avatar ? (
+                        <img
+                          src={user.avatar}
+                          alt={user.displayName}
+                          className="w-10 h-10 rounded-full object-cover"
+                        />
+                      ) : (
+                        user.displayName.charAt(0).toUpperCase()
+                      )}
+                    </div>
+                    <div className="flex-1 min-w-0">
+                      <h4 className="text-sm font-medium text-gray-900 dark:text-white truncate">
+                        {user.displayName}
+                      </h4>
+                      <p className="text-sm text-gray-500 dark:text-gray-400 truncate">
+                        @{user.username}
+                      </p>
+                    </div>
+                    <UserPlus className="w-4 h-4 text-gray-400" />
+                  </div>
+                ))}
+              </div>
+            ) : searchTerm && !loading ? (
+              <div className="text-center py-8 text-gray-500 dark:text-gray-400">
+                <User className="w-12 h-12 mx-auto mb-2 opacity-50" />
+                <p>No users found</p>
+              </div>
+            ) : null}
+          </div>
+        </div>
+
+        {/* Footer */}
+        <div className="flex items-center justify-end space-x-3 p-6 border-t border-gray-200 dark:border-gray-700">
+          <button
+            onClick={onClose}
+            className="btn-secondary"
+          >
+            Cancel
+          </button>
+          <button
+            onClick={createConversation}
+            disabled={selectedUsers.size === 0 || creating}
+            className="btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+            {creating ? (
+              <div className="flex items-center space-x-2">
+                <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-white"></div>
+                <span>Creating...</span>
+              </div>
+            ) : (
+              `Start ${selectedUsers.size === 1 ? 'Chat' : 'Group'}`
+            )}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default UserSearch;

ysnrfd_messenger/BACKUP/frontend/src/components/Files/AudioPlayer.jsx

@@ -0,0 +1,120 @@
+import React, { useState, useRef, useEffect } from 'react';
+import { Play, Pause, Volume2, Download } from 'lucide-react';
+
+const AudioPlayer = ({ src, title, onDownload }) => {
+  const [isPlaying, setIsPlaying] = useState(false);
+  const [currentTime, setCurrentTime] = useState(0);
+  const [duration, setDuration] = useState(0);
+  const [volume, setVolume] = useState(1);
+  const audioRef = useRef();
+
+  useEffect(() => {
+    const audio = audioRef.current;
+    
+    const updateTime = () => setCurrentTime(audio.currentTime);
+    const updateDuration = () => setDuration(audio.duration);
+    const handleEnded = () => setIsPlaying(false);
+
+    audio.addEventListener('timeupdate', updateTime);
+    audio.addEventListener('loadedmetadata', updateDuration);
+    audio.addEventListener('ended', handleEnded);
+
+    return () => {
+      audio.removeEventListener('timeupdate', updateTime);
+      audio.removeEventListener('loadedmetadata', updateDuration);
+      audio.removeEventListener('ended', handleEnded);
+    };
+  }, []);
+
+  const togglePlay = () => {
+    if (isPlaying) {
+      audioRef.current.pause();
+    } else {
+      audioRef.current.play();
+    }
+    setIsPlaying(!isPlaying);
+  };
+
+  const handleSeek = (e) => {
+    const newTime = e.target.value;
+    audioRef.current.currentTime = newTime;
+    setCurrentTime(newTime);
+  };
+
+  const handleVolumeChange = (e) => {
+    const newVolume = e.target.value;
+    audioRef.current.volume = newVolume;
+    setVolume(newVolume);
+  };
+
+  const formatTime = (time) => {
+    const minutes = Math.floor(time / 60);
+    const seconds = Math.floor(time % 60);
+    return `${minutes}:${seconds.toString().padStart(2, '0')}`;
+  };
+
+  return (
+    <div className="bg-gray-50 dark:bg-gray-700 rounded-lg p-4 border border-gray-200 dark:border-gray-600">
+      {/* Hidden audio element */}
+      <audio ref={audioRef} src={src} preload="metadata" />
+      
+      {/* Title and Download */}
+      <div className="flex items-center justify-between mb-3">
+        <h4 className="text-sm font-medium text-gray-900 dark:text-white truncate flex-1 mr-2">
+          {title}
+        </h4>
+        {onDownload && (
+          <button
+            onClick={onDownload}
+            className="p-1.5 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors flex-shrink-0"
+            title="Download"
+          >
+            <Download size={16} />
+          </button>
+        )}
+      </div>
+
+      {/* Controls */}
+      <div className="flex items-center space-x-3">
+        <button
+          onClick={togglePlay}
+          className="p-2 bg-primary-500 text-white rounded-full hover:bg-primary-600 transition-colors flex-shrink-0"
+        >
+          {isPlaying ? <Pause size={16} /> : <Play size={16} />}
+        </button>
+
+        {/* Progress */}
+        <div className="flex-1 space-y-1">
+          <input
+            type="range"
+            min="0"
+            max={duration || 0}
+            value={currentTime}
+            onChange={handleSeek}
+            className="w-full h-1.5 bg-gray-200 dark:bg-gray-600 rounded-lg appearance-none cursor-pointer [&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:h-3 [&::-webkit-slider-thumb]:w-3 [&::-webkit-slider-thumb]:rounded-full [&::-webkit-slider-thumb]:bg-primary-500"
+          />
+          <div className="flex justify-between text-xs text-gray-500 dark:text-gray-400">
+            <span>{formatTime(currentTime)}</span>
+            <span>{formatTime(duration)}</span>
+          </div>
+        </div>
+
+        {/* Volume */}
+        <div className="flex items-center space-x-2 w-20">
+          <Volume2 size={16} className="text-gray-500 dark:text-gray-400 flex-shrink-0" />
+          <input
+            type="range"
+            min="0"
+            max="1"
+            step="0.1"
+            value={volume}
+            onChange={handleVolumeChange}
+            className="w-full h-1.5 bg-gray-200 dark:bg-gray-600 rounded-lg appearance-none cursor-pointer [&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:h-3 [&::-webkit-slider-thumb]:w-3 [&::-webkit-slider-thumb]:rounded-full [&::-webkit-slider-thumb]:bg-primary-500"
+          />
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default AudioPlayer;

ysnrfd_messenger/BACKUP/frontend/src/components/Files/FilePreview.jsx

@@ -0,0 +1,61 @@
+import React from 'react';
+import { Download, X, FileText, Image, Music } from 'lucide-react';
+import { formatFileSize } from '../../utils/fileValidation';
+
+const FilePreview = ({ file, onRemove, onDownload }) => {
+  const getFileIcon = () => {
+    if (file.type.startsWith('image/')) return <Image className="w-6 h-6" />;
+    if (file.type.startsWith('audio/')) return <Music className="w-6 h-6" />;
+    return <FileText className="w-6 h-6" />;
+  };
+
+  const getFileType = () => {
+    if (file.type.startsWith('image/')) return 'Image';
+    if (file.type.startsWith('audio/')) return 'Audio';
+    if (file.type === 'application/pdf') return 'PDF';
+    if (file.type.startsWith('text/')) return 'Text';
+    return 'File';
+  };
+
+  return (
+    <div className="flex items-center justify-between p-3 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
+      <div className="flex items-center space-x-3">
+        <div className="text-primary-500">
+          {getFileIcon()}
+        </div>
+        <div className="flex-1 min-w-0">
+          <p className="text-sm font-medium text-gray-900 dark:text-white truncate">
+            {file.name}
+          </p>
+          <p className="text-xs text-gray-500 dark:text-gray-400">
+            {getFileType()} • {formatFileSize(file.size)}
+          </p>
+        </div>
+      </div>
+
+      <div className="flex items-center space-x-2">
+        {onDownload && (
+          <button
+            onClick={() => onDownload(file)}
+            className="p-1.5 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors"
+            title="Download"
+          >
+            <Download size={16} />
+          </button>
+        )}
+        
+        {onRemove && (
+          <button
+            onClick={() => onRemove(file)}
+            className="p-1.5 text-gray-500 hover:text-red-600 dark:text-gray-400 dark:hover:text-red-400 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors"
+            title="Remove"
+          >
+            <X size={16} />
+          </button>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default FilePreview;