TODO List - OpenType Feature Freezer

# TODO List - OpenType Feature Freezer

## Immediate Priority Tasks

### Documentation
- [ ] Add comprehensive docstrings to all classes and methods in `__init__.py`
- [ ] Add docstrings to all functions in `cli.py`
- [ ] Create inline code comments for complex logic
- [ ] Add type hints to remaining untyped functions
- [ ] Write API documentation using Sphinx
- [ ] Update README.md with badges and better examples
- [ ] Create CONTRIBUTING.md guide
- [ ] Add troubleshooting section to documentation

### Error Handling
- [ ] Create `exceptions.py` with custom exception classes
- [ ] Replace generic try/except blocks with specific exceptions
- [ ] Add input validation for font files
- [ ] Validate feature tags before processing
- [ ] Improve error messages with actionable suggestions
- [ ] Add proper logging configuration

### Testing
- [ ] Increase test coverage to >90%
- [ ] Add unit tests for error conditions
- [ ] Create integration tests for full workflows
- [ ] Add property-based tests using Hypothesis
- [ ] Test with various font formats (TTF, OTF, WOFF, WOFF2)
- [ ] Add performance benchmarks

### CI/CD Setup
- [ ] Create GitHub Actions workflow for testing
- [ ] Add matrix testing for Python 3.8-3.12
- [ ] Set up cross-platform testing (Windows, macOS, Linux)
- [ ] Configure automatic PyPI releases
- [ ] Add code coverage reporting
- [ ] Set up dependabot for dependency updates

## Short-term Tasks (1-2 months)

### Code Refactoring
- [ ] Split large functions into smaller, focused methods
- [ ] Extract substitution logic into separate classes
- [ ] Replace SimpleNamespace with dataclasses
- [ ] Implement proper separation of concerns
- [ ] Add design patterns (Strategy, Factory)
- [ ] Remove code duplication
- [ ] Split `RemapByOTL` class into smaller, single-responsibility modules/classes (e.g., `FontIOHandler`, `FeatureProcessor`, `CmapRemapper`, `FontNamer`, `Reporter`)
- [ ] Split `tests/test_rename.py` into `tests/test_rename_ttf.py` and `tests/test_rename_otf.py`
- [ ] Extract `get_version` from `app/dmgbuild_settings.py` to `app/utils.py`
- [ ] Extract `icon_from_app` from `app/dmgbuild_settings.py` to `app/mac_app_utils.py`

### Build System
- [ ] Simplify PyInstaller specs
- [ ] Investigate modern packaging alternatives (Briefcase, PyOxidizer)
- [ ] Create unified build process for CLI and GUI
- [ ] Add build scripts for all platforms
- [ ] Create automated release scripts

### GUI Improvements
- [ ] Evaluate modern GUI frameworks as Gooey alternatives
- [ ] Add drag-and-drop support for font files
- [ ] Implement batch processing interface
- [ ] Add preferences/settings persistence
- [ ] Create font feature preview
- [ ] Improve error reporting in GUI

## Medium-term Tasks (3-6 months)

### CLI Enhancements
- [ ] Add Rich library for beautiful terminal output
- [ ] Implement progress bars for operations
- [ ] Add interactive mode for guided usage
- [ ] Create shell completion scripts
- [ ] Add --dry-run option
- [ ] Implement verbose logging levels

### Distribution
- [ ] Create Homebrew formula for macOS
- [ ] Create Chocolatey package for Windows
- [ ] Submit to Linux package repositories
- [ ] Create Docker images
- [ ] Set up Docker Hub automated builds
- [ ] Create portable versions

### Performance
- [ ] Profile code for bottlenecks
- [ ] Optimize font processing algorithms
- [ ] Add multiprocessing for batch operations
- [ ] Implement caching for repeated operations
- [ ] Reduce memory usage for large fonts

## Long-term Tasks (6+ months)

### Advanced Features
- [ ] Add variable font support
- [ ] Implement color font handling
- [ ] Create font feature analysis tools
- [ ] Add font comparison utilities
- [ ] Support for more substitution types
- [ ] Implement feature interaction detection

### API and Integration
- [ ] Create Python API for programmatic use
- [ ] Develop RESTful web service
- [ ] Build WebAssembly version
- [ ] Create plugin system
- [ ] Add webhook support
- [ ] Develop browser extension

### Community
- [ ] Create project website
- [ ] Set up discussion forum
- [ ] Write tutorials and guides
- [ ] Create video demonstrations
- [ ] Establish code of conduct
- [ ] Build contributor community

## Bug Fixes and Maintenance

### Known Issues
- [ ] Fix potential Unicode handling edge cases
- [ ] Resolve memory leaks in batch processing
- [ ] Handle corrupted font files gracefully
- [ ] Fix GUI freezing on large operations
- [ ] Improve cross-platform path handling

### Technical Debt
- [ ] Remove deprecated function usage
- [ ] Update to latest fontTools APIs
- [ ] Clean up legacy code
- [ ] Standardize coding style
- [ ] Remove unused imports and variables
- [ ] Optimize import statements

## Documentation Tasks

### User Documentation
- [ ] Create user manual
- [ ] Write FAQ section
- [ ] Add cookbook with recipes
- [ ] Create quick start guide
- [ ] Document all CLI options
- [ ] Add GUI screenshots

### Developer Documentation
- [ ] Document architecture decisions
- [ ] Create development setup guide
- [ ] Write testing guidelines
- [ ] Document release process
- [ ] Add code style guide
- [ ] Create plugin development guide

## Quality Assurance

### Code Quality
- [ ] Achieve 100% type coverage
- [ ] Fix all Ruff warnings
- [ ] Add security scanning
- [ ] Implement complexity limits
- [ ] Add mutation testing
- [ ] Create quality dashboards

### User Experience
- [ ] Conduct usability testing
- [ ] Gather user feedback
- [ ] Implement telemetry (opt-in)
- [ ] Create user surveys
- [ ] Analyze usage patterns
- [ ] Improve based on feedback