# Authentication Fix Summary

## Problem Identified
The ai-mockup-service was failing with a 401 error "Unable to verify token with auth service" when trying to save wireframes. This was caused by:

1. **Missing `/api/auth/verify` endpoint** in the user-auth service
2. **JWT secret mismatch** between services
3. **Incorrect token verification flow** in ai-mockup-service
4. **User ID extraction issues** in protected endpoints

## Fixes Implemented

### 1. Added Missing Token Verification Endpoint
- **File**: `automated-dev-pipeline/services/user-auth/src/routes/auth.js`
- **Added**: `GET /api/auth/verify` endpoint
- **Purpose**: Allows ai-mockup-service to verify JWT tokens remotely

### 2. Fixed JWT Secret Configuration
- **File**: `automated-dev-pipeline/services/ai-mockup-service/src/app.py`
- **Changed**: `JWT_SECRET` from `'your-jwt-secret-key-change-in-production'` to `'access-secret-key-2024-tech4biz'`
- **Purpose**: Ensures both services use the same JWT secret for local verification

### 3. Improved Token Verification Logic
- **File**: `automated-dev-pipeline/services/ai-mockup-service/src/app.py`
- **Enhanced**: `verify_jwt_token()` function with better error handling and logging
- **Added**: Fallback to remote verification when local verification fails
- **Improved**: Error messages and debugging information

### 4. Fixed User ID Extraction
- **Files**: All protected endpoints in ai-mockup-service
- **Changed**: User ID extraction to handle both local and remote JWT verification
- **Added**: Support for multiple user ID field names (`id`, `userId`, `user_id`)
- **Enhanced**: Error messages for authentication failures

### 5. Enhanced Frontend Error Handling
- **File**: `codenuk-frontend-dark-theme/src/components/wireframe-canvas.tsx`
- **Improved**: Error handling in `saveWireframe()` function
- **Added**: Specific error messages for different HTTP status codes
- **Enhanced**: User-friendly error messages for authentication issues

### 6. Updated Environment Configuration
- **File**: `automated-dev-pipeline/services/ai-mockup-service/src/env.example`
- **Updated**: JWT configuration to match user-auth service

## How It Works Now

### Token Verification Flow
1. **Local Verification**: ai-mockup-service first tries to verify JWT tokens locally using the shared secret
2. **Remote Verification**: If local verification fails, it calls the user-auth service's `/api/auth/verify` endpoint
3. **User Data**: Both methods return user data that can be used for authorization

### Authentication Process
1. User logs in through frontend → receives JWT token from user-auth service
2. Frontend sends requests to ai-mockup-service with JWT token in Authorization header
3. ai-mockup-service verifies token (locally or remotely) and extracts user information
4. Protected endpoints check user ID and permissions before proceeding

## Testing the Fixes

### 1. Run the Authentication Test
```bash
cd automated-dev-pipeline/services/ai-mockup-service/src
python test_auth.py
```

### 2. Test Wireframe Generation (No Auth Required)
```bash
curl -X POST http://localhost:8021/generate-wireframe/desktop \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Simple login form"}'
```

### 3. Test Wireframe Saving (Auth Required)
```bash
# First get a valid JWT token from user-auth service
# Then use it to save a wireframe
curl -X POST http://localhost:8021/api/wireframes \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -d '{"wireframe": {"name": "Test"}, "elements": []}'
```

## Environment Variables Required

### ai-mockup-service (.env)
```bash
JWT_SECRET=access-secret-key-2024-tech4biz
USER_AUTH_SERVICE_URL=http://localhost:8011
```

### user-auth-service (.env)
```bash
JWT_ACCESS_SECRET=access-secret-key-2024-tech4biz
JWT_REFRESH_SECRET=refresh-secret-key-2024-tech4biz
```

## Troubleshooting

### Common Issues
1. **401 Unauthorized**: Check if JWT tokens are being sent correctly
2. **Token verification failed**: Verify both services are running and accessible
3. **User ID not found**: Check JWT payload structure and user ID field names

### Debug Steps
1. Check service logs for detailed error messages
2. Verify environment variables are set correctly
3. Ensure both services are running on expected ports
4. Test token verification endpoint directly

## Next Steps
1. Test the authentication flow end-to-end
2. Monitor logs for any remaining issues
3. Consider adding more comprehensive error handling
4. Implement token refresh logic if needed
