Successfully extracted SectionManager from monolithic editor.js using TDD approach.
Component Extraction:
- Created modular directory structure: markitect/static/js/{core,components,utils,tests}/
- Extracted SectionManager class (490 lines) to core/section-manager.js
- Included Section class and dependencies (EditState, SectionType)
- Preserved all functionality: section creation, editing, events, status
TDD Implementation:
- Built RefactorTestRunner for component extraction testing
- Created comprehensive test suite (12 tests, all passing)
- Verified behavioral compatibility with original monolithic component
- Fixed subtle bug in getDocumentStatus (isEditing vs isEditing())
Key Features Preserved:
✅ Section creation from markdown (with sophisticated ID generation)
✅ Editing state management (start, update, accept, cancel, reset)
✅ Event system (on/emit) for section lifecycle events
✅ Document status tracking and section collection management
✅ Section splitting functionality for dynamic content changes
Architecture Benefits:
- Clean separation of concerns (490 lines vs 5,188-line monolith)
- Independent testability without DOM dependencies
- Reusable component for different UI frameworks
- Clear API surface with comprehensive test coverage
Next: Extract DOMRenderer and other UI components using same TDD approach.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
tegwick
d2a5e5ff2a