KCAPDemoServer/PLANNING.md

Project Planning and Code Guidelines

General Code Guidelines

• Modular Design: Use Object-Oriented Programming (OOP) where possible to separate concerns and promote code reuse.

• File Size Limit: No single Python file should exceed 600 lines to improve readability and maintainability.

• Commenting:

  • Use clear, concise comments to explain complex logic.
  • Include function and class docstrings where appropriate.
  • Use in-line comments sparingly and only when the logic is not immediately obvious.

• Code Structure:

  • Follow the Model-View-Controller (MVC) pattern where applicable.
  • Group related classes and functions into separate modules for clarity.

• Error Handling: Implement robust error handling with meaningful messages and fallback behavior where possible.

• Readability:

  • Use meaningful variable and function names.
  • Avoid deeply nested loops and conditionals where possible.

API Design Guidelines

• RESTful Endpoints: Use RESTful conventions for all API endpoints.
• Status Codes: Return appropriate HTTP status codes (e.g., 200 for success, 404 for not found, 500 for server error).
• Error Responses: Provide consistent and descriptive error messages.
• Data Validation: Validate all incoming data to prevent unexpected behavior and security issues.
• Unified API and UI: For demo purposes, both the API endpoints and admin UI should be served by the same Flask application.

File Organization

• Static Files: Store images in the static/images/ directory.
• Product Data: Store product metadata in products.json.
• Configuration Files: Use a dedicated config/ directory for environment-specific settings.
• Templates: Store HTML templates in the templates/ directory, with admin-specific templates in templates/admin/.

Documentation Guidelines

• Keep Documentation Updated: Update TASK.md as features are implemented to track progress.
• Readme First: README.md should always reflect the current state of the project and provide clear setup instructions.
• Code Comments: Keep code comments in sync with implementation changes.
• API Documentation: Document all API endpoints, including request/response formats.

Security Guidelines

• No Hardcoded Credentials: Avoid hardcoding sensitive information like passwords or API keys.
• Input Sanitization: Validate and sanitize all user input to prevent injection attacks.
• Minimal Permissions: Run the application with the least required privileges.

Future Considerations

• Scalability: Plan for the potential migration to a database if the product catalog grows.
• API Rate Limiting: Consider adding rate limiting for public APIs.
• Monitoring and Logging: Implement basic logging for audit trails and error diagnosis.
• Deployment Automation: Use Docker or other containerization for easy deployment and scaling.