# Progress: hosts

## What Works

### Project Foundation
- ✅ **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

### 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 1: Foundation (Immediate)
- ❌ **Project structure**: Create proper `src/hosts/` package structure
- ❌ **Dependencies**: Add textual, pytest, and other required packages
- ❌ **Entry point**: Configure proper application entry point in pyproject.toml
- ❌ **Core models**: Implement HostEntry and HostsFile data classes
- ❌ **Hosts parser**: Create parser for reading/writing `/etc/hosts` files

### Phase 2: Core Functionality
- ❌ **Basic TUI**: Implement main application with two-pane layout
- ❌ **File loading**: Read and parse existing hosts file
- ❌ **Entry display**: Show hosts entries in left pane
- ❌ **Detail view**: Show selected entry details in right pane
- ❌ **Navigation**: Keyboard navigation between entries

### Phase 3: Read-Only Features
- ❌ **Entry selection**: Highlight and select entries
- ❌ **Sorting**: Sort entries by IP, hostname, or comments
- ❌ **Filtering**: Filter entries by active/inactive status
- ❌ **Search**: Find entries by hostname or IP

### Phase 4: Edit Mode
- ❌ **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

### 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
- ❌ **Undo/Redo**: Command pattern implementation
- ❌ **File validation**: Comprehensive validation before saving

### Phase 6: Polish
- ❌ **Error handling**: Graceful error handling and user feedback
- ❌ **Help system**: In-app help and keyboard shortcuts
- ❌ **Configuration**: User preferences and settings
- ❌ **Performance**: Optimization for large hosts files

## Current Status

### Development Stage
**Stage**: Project Initialization
**Progress**: 10% (Foundation documentation complete)
**Next Milestone**: Basic project structure and dependencies

### Immediate Blockers
1. **Project structure**: Need to create proper package layout
2. **Dependencies**: Must add textual framework to begin TUI development
3. **Entry point**: Configure uv to run the application properly

### Recent Accomplishments
- Completed comprehensive project planning and documentation
- Established clear architecture and design patterns
- Created memory bank system for project continuity
- Defined development phases and priorities

## Known Issues

### Current Limitations
- **Placeholder implementation**: main.py only prints hello message
- **Missing dependencies**: Core frameworks not yet added
- **No package structure**: Files not organized in proper Python package
- **No tests**: Testing framework not yet configured

### Technical Debt
- **Temporary main.py**: Needs to be moved to proper location
- **Missing type hints**: Will need comprehensive typing
- **No error handling**: Basic error handling patterns needed
- **No logging**: Logging system not yet implemented

## Evolution of Project Decisions

### Initial Decisions (Current)
- **Python 3.13**: Chosen for modern features and performance
- **Textual**: Selected for rich TUI capabilities
- **uv**: Adopted for fast package management
- **ruff**: Chosen for code quality and speed

### Architecture Evolution
- **Layered approach**: Decided on clear separation of concerns
- **Command pattern**: Chosen for undo/redo functionality
- **Immutable state**: Selected for predictable state management
- **Permission model**: Explicit edit mode for safety

### Design Considerations
- **Safety first**: Read-only default mode prioritized
- **User experience**: Keyboard-driven interface emphasized
- **File integrity**: Atomic operations and validation required
- **Performance**: Responsive UI for large files planned

## Success Metrics Progress

### Completed Metrics
- ✅ **Project documentation**: Comprehensive planning complete
- ✅ **Architecture clarity**: Clear technical direction established
- ✅ **Development setup**: Basic environment ready

### Pending Metrics
- ❌ **Functional prototype**: Basic TUI not yet implemented
- ❌ **File parsing**: Hosts file reading not yet working
- ❌ **User testing**: No user interface to test yet
- ❌ **Performance benchmarks**: No code to benchmark yet

## Next Session Priorities

1. **Create project structure**: Set up src/hosts/ package layout
2. **Add dependencies**: Install textual and pytest
3. **Implement data models**: Create HostEntry and HostsFile classes
4. **Basic parser**: Read and parse simple hosts file format
5. **Minimal TUI**: Create basic application shell

The project is well-planned and ready for implementation to begin.