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hosts/memory-bank/progress.md
phg 2decad8047 Add unit tests for HostEntry and HostsFile models, and implement HostsParser tests 
- Created comprehensive unit tests for HostEntry class, covering creation, validation, and conversion to/from hosts file lines.
- Developed unit tests for HostsFile class, including entry management, sorting, and retrieval of active/inactive entries.
- Implemented tests for HostsParser class, validating parsing and serialization of hosts files, handling comments, and file operations.
- Ensured coverage for edge cases such as empty files, invalid entries, and file permission checks.
2025-07-29 14:52:31 +02:00

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Progress: hosts

What Works

Project Foundation ✅ COMPLETE

  • ✅ uv project initialized: Basic Python 3.13 project with uv configuration
  • ✅ Code quality setup: ruff configured for linting and formatting
  • ✅ Memory bank complete: All core documentation files created and populated
  • ✅ Architecture defined: Clear layered architecture and design patterns established

Phase 1: Foundation ✅ COMPLETE

  • ✅ Project structure: Created proper src/hosts/ package structure with core and tui modules
  • ✅ Dependencies: Added textual, pytest, ruff and configured properly in pyproject.toml
  • ✅ Entry point: Configured proper application entry point (hosts command)
  • ✅ Core models: Implemented HostEntry and HostsFile data classes with full validation
  • ✅ Hosts parser: Created comprehensive parser for reading/writing /etc/hosts files
  • ✅ Basic TUI: Implemented main application with two-pane layout
  • ✅ File loading: Successfully reads and parses existing hosts file
  • ✅ Entry display: Shows hosts entries in left pane with proper formatting
  • ✅ Detail view: Shows selected entry details in right pane
  • ✅ Navigation: Keyboard navigation between entries working
  • ✅ Testing: Comprehensive test suite with 42 passing tests
  • ✅ Code quality: All linting checks passing

Documentation

  • ✅ Project brief: Comprehensive project definition and requirements
  • ✅ Product context: User experience goals and problem definition
  • ✅ Technical context: Technology stack and development setup
  • ✅ System patterns: Architecture, design patterns, and implementation paths
  • ✅ Active context: Current work focus and next steps

What's Left to Build

Phase 2: Enhanced Read-Only Features (Next)

  • ❌ Entry selection highlighting: Visual feedback for selected entries
  • ❌ Sorting: Sort entries by IP, hostname, or comments
  • ❌ Filtering: Filter entries by active/inactive status
  • ❌ Search: Find entries by hostname or IP
  • ❌ Help screen: Proper modal help dialog
  • ❌ Status indicators: Better visual distinction for active/inactive entries

Phase 3: Edit Mode Foundation

  • ❌ Permission management: Sudo request and management
  • ❌ Edit mode toggle: Switch between read-only and edit modes
  • ❌ Entry activation: Toggle entries active/inactive
  • ❌ Entry reordering: Move entries up/down in the list
  • ❌ Entry editing: Modify IP addresses, hostnames, comments
  • ❌ File backup: Automatic backup before modifications

Phase 4: Advanced Edit Features

  • ❌ Add new entries: Create new host entries
  • ❌ Delete entries: Remove host entries
  • ❌ Bulk operations: Select and modify multiple entries
  • ❌ Validation: Real-time validation of IP addresses and hostnames
  • ❌ Undo/Redo: Command pattern implementation

Phase 5: Advanced Features

  • ❌ DNS resolution: Resolve hostnames to IP addresses
  • ❌ IP comparison: Compare stored vs resolved IPs
  • ❌ CNAME support: Store DNS names alongside IP addresses
  • ❌ Import/Export: Support for different file formats
  • ❌ Configuration: User preferences and settings

Phase 6: Polish

  • ❌ Error handling: Enhanced error handling and user feedback
  • ❌ Performance: Optimization for large hosts files
  • ❌ Accessibility: Screen reader support and keyboard accessibility
  • ❌ Documentation: User manual and installation guide

Current Status

Development Stage

Stage: Phase 1 Complete - Foundation Established Progress: 25% (Core functionality working) Next Milestone: Enhanced read-only features

Phase 1 Achievements

  1. ✅ Fully functional TUI: Application successfully loads and displays hosts file
  2. ✅ Robust parsing: Handles comments, inactive entries, IPv4/IPv6 addresses
  3. ✅ Clean architecture: Well-structured codebase with separation of concerns
  4. ✅ Comprehensive testing: 42 tests covering models and parser functionality
  5. ✅ Code quality: All linting and formatting checks passing

Immediate Next Steps

  1. Enhanced UI: Improve visual feedback and entry highlighting
  2. Sorting/Filtering: Add basic data manipulation features
  3. Help system: Implement proper help modal
  4. Status improvements: Better visual indicators for entry states

Recent Accomplishments

  • Successfully implemented complete Phase 1 foundation
  • Created robust data models with validation
  • Built comprehensive hosts file parser with comment preservation
  • Developed functional TUI application with two-pane layout
  • Established comprehensive testing framework
  • Achieved clean code quality standards

Technical Implementation Details

Core Components Working

  • HostEntry: Data class with IP/hostname validation, active/inactive state
  • HostsFile: Container with entry management, sorting, and search capabilities
  • HostsParser: File I/O with atomic writes, backup creation, permission checking
  • HostsManagerApp: Textual-based TUI with reactive state management

Test Coverage

  • Models: 27 tests covering all data model functionality
  • Parser: 15 tests covering file operations and edge cases
  • Coverage: All core functionality thoroughly tested

Code Quality

  • Linting: All ruff checks passing
  • Type hints: Comprehensive typing throughout codebase
  • Documentation: Detailed docstrings and comments
  • Error handling: Proper exception handling in core components

Known Issues

Current Limitations

  • Help system: Currently shows status message instead of modal
  • Entry highlighting: Basic selection without visual enhancement
  • No edit capabilities: Read-only mode only (by design for Phase 1)
  • No sorting/filtering: Basic display only

Technical Debt

  • Help modal: Need to implement proper screen for help
  • Visual polish: Entry highlighting and status indicators need improvement
  • Error messages: Could be more user-friendly
  • Performance: Not yet optimized for very large hosts files

Evolution of Project Decisions

Confirmed Decisions

  • Python 3.13: Excellent choice for modern features
  • Textual: Perfect for rich TUI development
  • uv: Fast and reliable package management
  • ruff: Excellent code quality tooling
  • Dataclasses: Clean and efficient for data models

Architecture Validation

  • Layered approach: Proven effective with clear separation
  • Parser design: Robust handling of real-world hosts files
  • Reactive UI: Textual's reactive system working well
  • Test-driven: Comprehensive testing paying dividends

Design Successes

  • Safety first: Read-only default working as intended
  • File integrity: Atomic operations and backup system solid
  • User experience: Keyboard navigation intuitive
  • Code organization: Package structure clean and maintainable

Success Metrics Progress

Completed Metrics ✅

  • ✅ Functional prototype: TUI application fully working
  • ✅ File parsing: Robust hosts file reading and writing
  • ✅ Code quality: All quality checks passing
  • ✅ Test coverage: Comprehensive test suite implemented
  • ✅ Architecture: Clean, maintainable codebase structure

Next Phase Metrics

  • ❌ Enhanced UX: Improved visual feedback and interactions
  • ❌ Data manipulation: Sorting and filtering capabilities
  • ❌ User testing: Feedback on current interface
  • ❌ Performance benchmarks: Testing with large hosts files

Next Session Priorities

Phase 2 Implementation

  1. Visual enhancements: Improve entry highlighting and status indicators
  2. Sorting functionality: Implement sort by IP, hostname, status
  3. Filtering system: Add active/inactive filtering
  4. Help modal: Create proper help screen
  5. Search capability: Basic hostname/IP search

Quality Improvements

  1. Error handling: More user-friendly error messages
  2. Status feedback: Better user feedback for operations
  3. Performance testing: Test with large hosts files
  4. Documentation: Update README with usage instructions

Phase 1 Success Summary

Phase 1 has been successfully completed with all core objectives achieved:

  • ✅ Solid foundation: Robust architecture and codebase
  • ✅ Working application: Functional TUI that reads and displays hosts files
  • ✅ Quality standards: Clean code with comprehensive testing
  • ✅ User experience: Intuitive keyboard-driven interface
  • ✅ File safety: Proper parsing with comment preservation

The project is ready to move into Phase 2 with enhanced read-only features.