lego-instructions-manager/FEATURE_UPDATE_SUMMARY.md

Feature Update: MOC Auto-Generation & Favicon

🎉 New Features Added

1. ✅ Favicon (Already Existing)

Your repository already had a favicon implemented at app/static/favicon.ico. The favicon is properly integrated into your base templates and displays a LEGO brick icon in browser tabs.

Location: app/static/favicon.ico Status: ✅ Already implemented and working

2. 🤖 MOC Auto-Generation (NEW)

Automatic MOC (My Own Creation) set number generation has been added to streamline creating and managing custom LEGO builds.

Default Behavior: GLOBAL NUMBERING - All users share the same MOC number sequence for system-wide unique IDs.

📦 Files Added

Services

• app/services/moc_generator.py - MOC number generation service
  • MOCNumberGenerator.generate_next_number() - Generate next sequential MOC number
  • MOCNumberGenerator.validate_moc_number() - Check if MOC number is available
  • MOCNumberGenerator.is_moc_number() - Verify MOC number format

Routes

• app/routes/moc.py - API endpoints for MOC operations
  • GET /api/moc/generate - Generate next MOC number
  • POST /api/moc/validate - Validate MOC number availability
  • GET /api/moc/check-format - Check if number follows MOC format

Documentation

• docs/MOC_AUTO_GENERATION.md - Comprehensive feature documentation
  • API reference
  • Frontend integration examples
  • Backend implementation guide
  • Configuration options
  • Troubleshooting guide

📝 Files Modified

App Initialization

• app/__init__.py - Added MOC blueprint registration

  from app.routes.moc import bp as moc_bp
  app.register_blueprint(moc_bp)
  

Routes Package

• app/routes/__init__.py - Added MOC blueprint export

  from app.routes.moc import bp as moc_bp
  __all__ = [..., 'moc_bp']
  

Services Package

• app/services/__init__.py - Added MOCNumberGenerator export

  from app.services.moc_generator import MOCNumberGenerator
  __all__ = [..., 'MOCNumberGenerator']
  

🔧 How It Works

MOC Number Format

• Pattern: MOC-10000, MOC-10001, MOC-10002, etc.
• Customizable Prefix: Default is "MOC" but can be changed
• Sequential: Automatically finds next available number
• Conflict-Free: Validates before assignment
• Global by Default: All users share the same sequence

Usage Example

Frontend (JavaScript):

// Toggle MOC mode - fetches global MOC number by default
document.getElementById('is_moc').addEventListener('change', function() {
    if (this.checked) {
        // Auto-fetch next GLOBAL MOC number
        fetch('/api/moc/generate')
            .then(response => response.json())
            .then(data => {
                document.getElementById('mocNumber').textContent = data.moc_number;
            });
    }
});

Backend (Python):

from app.services.moc_generator import MOCNumberGenerator

# Generate next GLOBAL MOC number (default)
moc_number = MOCNumberGenerator.generate_next_number(
    user_id=None  # None = global numbering
)

# Create MOC set
new_set = Set(
    set_number=moc_number,
    set_name="My Custom Castle",
    is_moc=True,
    moc_designer="John Doe",
    theme="MOC",
    year_released=2024
)

🎯 Key Features

Global Numbering (Default - STANDARD)

• All users share the same MOC number sequence
• Ensures system-wide unique MOC numbers
• MOC-10000 is unique across the entire system
• API: user_scoped=false or omit parameter (default)
• Recommended for single household, organization, or guaranteed unique IDs

Per-User Numbering (Optional)

• Each user has their own MOC number sequence
• User A can have MOC-10000, User B can also have MOC-10000
• Prevents conflicts between users' custom builds
• API: user_scoped=true
• Use only if you need isolated numbering per user

Validation

• Checks for existing MOC numbers before assignment
• Prevents duplicate set numbers (globally or per-user)
• Validates MOC number format

📊 Database Integration

Existing MOC Support

Your Set model already includes full MOC support:

is_moc = db.Column(db.Boolean, default=False, nullable=False, index=True)
moc_designer = db.Column(db.String(100), nullable=True)
moc_description = db.Column(db.Text, nullable=True)

No database migration required! The auto-generation feature builds on your existing schema.

🚀 Next Steps

For Development

1. Pull Latest Changes

   cd E:\LIM
   git pull origin main
   

2. Test MOC Generation

   python run.py
   # Navigate to http://localhost:5000/api/moc/generate
   

3. Verify Endpoints

   • GET /api/moc/generate - Should return {"success": true, "moc_number": "MOC-10000", "user_scoped": false}
   • Check browser console for any JavaScript errors

For Frontend Integration

1. Add MOC toggle to your "Add Set" form
2. Implement JavaScript to call /api/moc/generate when toggled
3. Display auto-generated MOC number to user
4. Submit form with MOC fields populated

Configuration (Optional)

Edit app/services/moc_generator.py to customize:

• DEFAULT_PREFIX = 'MOC' - Change to your preferred prefix
• DEFAULT_START = 10000 - Change starting number

📚 Documentation

For complete details, see:

• MOC_AUTO_GENERATION.md - Full feature documentation
• API Examples - Included in documentation
• Frontend Integration - Complete HTML/JS examples
• Troubleshooting - Common issues and solutions

✅ Testing Checklist

• API endpoint accessible: GET /api/moc/generate
• Returns valid JSON response with user_scoped: false
• Sequential numbering works globally (MOC-10000, MOC-10001, etc.)
• Validation endpoint works: POST /api/moc/validate
• Frontend toggle shows/hides MOC section
• MOC number displays correctly in UI
• Can create MOC sets with auto-generated numbers
• MOC sets appear in dashboard with correct badge/indicator

🎨 UI Integration Recommendation

Consider adding to your "Add Set" template:

<div class="form-check form-switch mb-3">
    <input class="form-check-input" type="checkbox" id="is_moc" name="is_moc">
    <label class="form-check-label" for="is_moc">
        <strong>This is a MOC (My Own Creation)</strong>
    </label>
</div>

<!-- MOC Section (hidden by default) -->
<div id="mocSection" style="display: none;">
    <div class="alert alert-success">
        <i class="bi bi-lightbulb"></i> 
        MOC Number: <strong id="mocNumberDisplay">Loading...</strong>
    </div>
    <input type="text" class="form-control mb-3" 
           id="moc_designer" name="moc_designer" 
           placeholder="Designer/Creator Name">
    <textarea class="form-control" id="moc_description" 
              name="moc_description" rows="3" 
              placeholder="MOC Description"></textarea>
</div>

🐛 Known Limitations

1. No Recycling: Deleted MOC numbers are not reused (by design for data integrity)
2. Sequential Only: Numbers must be sequential (no custom formats yet)
3. Single Prefix: One prefix per installation (customizable but global)

💡 Future Enhancements

Potential improvements for future versions:

• Bulk MOC generation API
• Custom MOC number formats (e.g., MOC-YYYY-NNNN)
• MOC number recycling option
• Integration with Rebrickable for MOC imports
• MOC templates/categories

📞 Support

If you encounter any issues:

1. Check docs/MOC_AUTO_GENERATION.md for detailed guidance
2. Verify all files were pulled correctly from Git
3. Check Flask logs for errors
4. Open an issue on Gitea with error details

---

Summary

✅ Favicon: Already implemented and working
✅ MOC Auto-Generation: Now fully integrated with:

• Automatic sequential numbering (MOC-10000+)
• GLOBAL numbering as default (system-wide unique IDs)
• REST API endpoints for generation and validation
• Service layer for business logic
• Comprehensive documentation
• Optional per-user numbering if needed

Total Files Added: 3
Total Files Modified: 3
Total Lines of Code: ~500

All changes are backward compatible with your existing codebase. The MOC feature enhances your existing MOC support without breaking any current functionality.

Happy building! 🧱