EU-Utility/QUALITY_STANDARDS.md

EU-Utility Quality Standards

This document defines the quality standards for EU-Utility to maintain peak code quality.

Code Organization

EU-Utility/
├── core/                    # Core functionality
│   ├── __init__.py
│   ├── main.py             # Application entry point
│   ├── api/                # API layer
│   │   ├── __init__.py
│   │   ├── nexus_api.py
│   │   └── external_api.py
│   ├── services/           # Business logic
│   │   ├── __init__.py
│   │   ├── ocr_service.py
│   │   ├── screenshot.py
│   │   └── data_store.py
│   ├── ui/                 # UI components
│   │   ├── __init__.py
│   │   ├── overlay.py
│   │   ├── dashboard.py
│   │   └── widgets/
│   └── utils/              # Utilities
│       ├── __init__.py
│       ├── security.py
│       └── helpers.py
├── plugins/                # Plugin system
│   ├── __init__.py
│   ├── base_plugin.py
│   ├── plugin_manager.py
│   └── builtin/            # Built-in plugins
├── tests/                  # Test suite
│   ├── __init__.py
│   ├── test_core/
│   ├── test_plugins/
│   └── test_integration/
├── docs/                   # Documentation
├── assets/                 # Static assets
├── config/                 # Configuration files
├── scripts/                # Utility scripts
├── setup.py               # Package setup
├── pyproject.toml         # Modern Python config
├── requirements.txt       # Dependencies
├── requirements-dev.txt   # Dev dependencies
├── Makefile              # Build automation
├── LICENSE               # MIT License
├── CHANGELOG.md          # Version history
├── CONTRIBUTING.md       # Contribution guide
└── README.md             # Project readme

Naming Conventions

• Files: snake_case.py
• Classes: PascalCase
• Functions/Methods: snake_case()
• Constants: UPPER_SNAKE_CASE
• Private: _leading_underscore
• Protected: _single_leading_underscore

Code Style

• Follow PEP 8
• Maximum line length: 100 characters
• Use type hints for all function signatures
• Docstrings for all public APIs (Google style)
• Comments for complex logic

Documentation Standards

README.md

• Clear project description
• Installation instructions
• Quick start guide
• Feature list
• Screenshots/GIFs
• Contributing link
• License

Function Docstrings

def example_function(param1: str, param2: int) -> bool:
    """Short description.
    
    Longer description if needed. Can span multiple
    lines and provide detailed context.
    
    Args:
        param1: Description of param1.
        param2: Description of param2.
        
    Returns:
        Description of return value.
        
    Raises:
        ValueError: When param2 is negative.
        
    Example:
        >>> example_function("test", 42)
        True
    """
    pass

Testing Standards

• Unit tests for all functions
• Integration tests for workflows
• Minimum 80% code coverage
• Tests must pass before merging

Security Standards

• No hardcoded credentials
• Input validation on all user inputs
• Use parameterized queries
• Secure defaults
• Regular dependency updates

Performance Standards

• Profile before optimizing
• Use async for I/O operations
• Cache expensive operations
• Lazy loading for heavy resources
• Memory cleanup on exit

Git Standards

• Commit messages: type(scope): description
• Types: feat, fix, docs, style, refactor, test, chore
• One logical change per commit
• Reference issues in commits
• Squash before merging to main

Release Process

1. Update version in __init__.py
2. Update CHANGELOG.md
3. Run full test suite
4. Create git tag: git tag vX.Y.Z
5. Push to origin: git push origin vX.Y.Z
6. Create GitHub release

Code Review Checklist

• Code follows style guide
• Tests added/updated
• Documentation updated
• No security vulnerabilities
• Performance acceptable
• Backwards compatible (or properly versioned)