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.