I'll integrate the login system with MongoDB Atlas to store and authenticate users properly. Here's the complete implementation:

Complete MongoDB Atlas Integration Features:

🔐 Authentication System:

• ✅ Secure Login/Register with bcrypt password hashing
• ✅ Role-based Access (User, Admin, Attendant)
• ✅ Input Validation and error handling
• ✅ Account Status Management (Active/Inactive)
• ✅ Demo Quick Login buttons for testing

👥 User Management:

• ✅ User Registration with vehicle information
• ✅ Admin Creation with permission levels
• ✅ Profile Management and updates
• ✅ User Status Toggle (activate/deactivate)
• ✅ Password Security with bcrypt hashing

🗄️ Database Features:

• ✅ MongoDB Atlas Integration with proper schemas
• ✅ Connection Pooling and error handling
• ✅ Data Validation at API level
• ✅ Secure API Endpoints with proper error responses
• ✅ Database Seeding script for initial data

📱 User Interface:

• ✅ Responsive Login Form with loading states
• ✅ Real-time Validation feedback
• ✅ Demo Account Access for easy testing
• ✅ Error Handling with user-friendly messages
• ✅ Loading Indicators for better UX

️ Setup Instructions:

1. MongoDB Atlas Setup:

1. Create account at MongoDB Atlas
2. Create a new cluster (free tier works)
3. Create database user with read/write permissions
4. Whitelist your IP address (0.0.0.0/0 for development)
5. Get connection string from "Connect" → "Connect your application"

2. Environment Configuration:

3. Install Dependencies:

4. Seed Database:

5. Start Application:

Demo Login Credentials:

• Super Admin: admin@parking.com / admin123
• Manager: manager@parking.com / manager123
• Attendant: attendant@parking.com / attendant123
• User: john@example.com / password123

The system now uses MongoDB Atlas for secure user authentication and data persistence! 🎯

Here's a complete step-by-step guide to run the Smart Parking System with MongoDB Atlas on your PC:

Step-by-Step Setup Guide

Step 1: Prerequisites

Make sure you have these installed on your PC:

Step 2: Download the Project

Option A: Using the Download Button (Recommended)

1. Click the "Download Code" button at the top right of the code preview
2. Choose "Create new project"
3. Follow the automated setup instructions

Option B: Manual Setup

Step 3: Setup MongoDB Atlas

1. Create MongoDB Atlas Account:

   • Go to https://www.mongodb.com/atlas
   • Sign up for free account
   • Create a new project

2. Create Database Cluster:

   • Click "Build a Database"
   • Choose "M0 Sandbox" (Free tier)
   • Select your preferred region
   • Click "Create Cluster"

3. Create Database User:

   • Go to "Database Access" in left sidebar
   • Click "Add New Database User"
   • Choose "Password" authentication
   • Username: admin (or your choice)
   • Password: yourpassword123 (or your choice)
   • Database User Privileges: "Read and write to any database"
   • Click "Add User"

4. Setup Network Access:

   • Go to "Network Access" in left sidebar
   • Click "Add IP Address"
   • Click "Allow Access from Anywhere" (adds 0.0.0.0/0)
   • Click "Confirm"

5. Get Connection String:

   • Go to "Database" in left sidebar
   • Click "Connect" on your cluster
   • Choose "Connect your application"
   • Copy the connection string
   • It looks like: mongodb+srv://admin:<password>@cluster0.abc123.mongodb.net/?retryWrites=true&w=majority

Step 4: Configure Environment Variables

Create .env.local file in your project root:

Add this content to .env.local:

⚠️ Important: Replace yourpassword123 with your actual MongoDB password!

Step 5: Copy Project Files

If you're doing manual setup, copy all the code files from the project above into your project structure:

Step 6: Install shadcn/ui Components

Step 7: Seed the Database

You should see output like:

Step 8: Start the Development Server

You should see:

Step 9: Access the Application

1. Open your browser
2. Go to http://localhost:3000
3. You should see the Smart Parking login page

Step 10: Test Login

Use these demo credentials:

Quick Login Buttons:

• User Demo: john@example.com / password123
• Admin Demo: admin@parking.com / admin123
• Manager Demo: manager@parking.com / manager123
• Attendant Demo: attendant@parking.com / attendant123

Troubleshooting

Common Issues:

1. MongoDB Connection Error:

   # Check your .env.local file # Make sure MONGODB_URI is correct # Verify your MongoDB Atlas user credentials

2. Module Not Found Errors:

   # Install missing dependencies npm install # If shadcn components are missing: npx shadcn@latest add button card badge input label tabs select

3. TypeScript Errors:

   # Install TypeScript dependencies npm install -D typescript @types/node @types/react @types/react-dom

4. Port Already in Use:

   # Use different port npm run dev -- -p 3001

Verify Setup:

1. Check Database Connection:

   • Go to MongoDB Atlas dashboard
   • Check "Database" → "Browse Collections"
   • You should see smart_parking database with collections

2. Check API Endpoints:

   • Visit http://localhost:3000/api/auth/login (should show method not allowed)
   • This confirms API routes are working

3. Check Login:

   • Try logging in with demo credentials
   • Should redirect to dashboard based on user role

Application Features:

Once running, you can:

• ✅ Login/Register new users
• ✅ Manage Parking Slots (Admin)
• ✅ Book/Free Slots (User/Attendant)
• ✅ View Analytics and reports
• ✅ Manage Users and permissions

Success Indicators:

You'll know it's working when:

1. ✅ Login page loads without errors
2. ✅ Demo login buttons work
3. ✅ Dashboard shows based on user role
4. ✅ Parking slots are visible and interactive
5. ✅ MongoDB Atlas shows data in collections

If you encounter any issues, check the browser console (F12) and terminal for error messages! 🚀