Implement HostsManager for managing hosts file edits with permission handling
- Added PermissionManager class for managing sudo permissions. - Introduced HostsManager class for high-level operations on hosts file. - Implemented methods for entering/exiting edit mode, toggling entries, moving entries, updating entries, saving the hosts file, and restoring backups. - Integrated permission validation and backup creation during edit operations. - Enhanced main application to support edit mode and associated actions. - Added tests for PermissionManager and HostsManager to ensure functionality and error handling.
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## What's Left to Build
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### Phase 3: Edit Mode Foundation (Next)
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- ❌ **Permission management**: Sudo request and management
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- ❌ **Edit mode toggle**: Switch between read-only and edit modes
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- ❌ **Entry activation**: Toggle entries active/inactive
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- ❌ **Entry reordering**: Move entries up/down in the list
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- ❌ **Entry editing**: Modify IP addresses, hostnames, comments
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- ❌ **File backup**: Automatic backup before modifications
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### Phase 3: Edit Mode Foundation ✅ COMPLETE
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- ✅ **Permission management**: Sudo request and management with PermissionManager class
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- ✅ **Edit mode toggle**: Switch between read-only and edit modes with 'e' key
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- ✅ **Entry activation**: Toggle entries active/inactive with space bar
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- ✅ **Entry reordering**: Move entries up/down with Ctrl+Up/Down
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- ✅ **File backup**: Automatic backup before modifications with timestamp naming
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- ✅ **Safe file operations**: Atomic file writing with rollback capability
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- ✅ **Manager module**: Complete HostsManager class for edit operations
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- ✅ **Error handling**: Comprehensive error handling with user feedback
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### Phase 4: Advanced Edit Features
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- ❌ **Add new entries**: Create new host entries
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## Current Status
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### Development Stage
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**Stage**: Phase 2 Complete - Moving to Phase 3
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**Progress**: 60% (Complete read-only functionality with advanced features)
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**Next Milestone**: Edit mode foundation with permission management
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**Stage**: Phase 3 Complete - Moving to Phase 4
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**Progress**: 75% (Complete edit mode foundation with permission management)
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**Next Milestone**: Advanced edit features (add/delete entries, bulk operations)
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### Phase 2 Final Achievements
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1. ✅ **Advanced configuration system**: Complete settings management with persistence
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7. ✅ **Enhanced user experience**: Visual sort indicators and comprehensive status information
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8. ✅ **Robust configuration**: JSON-based settings with graceful error handling
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### Phase 3 Immediate Priorities
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1. **Permission management**: Implement sudo request and management system
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2. **Edit mode toggle**: Safe transition between read-only and edit modes
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3. **Entry modification**: Toggle active/inactive status for entries
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4. **File safety**: Automatic backup system before any modifications
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5. **Entry editing**: Modify IP addresses, hostnames, and comments
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### Phase 3 Final Achievements ✅ COMPLETE
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1. ✅ **Permission management**: Complete PermissionManager class with sudo request and validation
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2. ✅ **Edit mode toggle**: Safe transition between read-only and edit modes with 'e' key
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3. ✅ **Entry modification**: Toggle active/inactive status for entries with space bar
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4. ✅ **File safety**: Automatic backup system with timestamp naming before modifications
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5. ✅ **Entry reordering**: Move entries up/down with Ctrl+Up/Down keyboard shortcuts
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6. ✅ **Manager module**: Complete HostsManager class for all edit operations
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7. ✅ **Safe file operations**: Atomic file writing with rollback capability
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8. ✅ **Comprehensive testing**: 38 new tests for manager module (135 total tests)
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### Recent Major Accomplishments
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- ✅ **Complete Phase 2 implementation**: All enhanced read-only features achieved
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- ✅ **Advanced configuration system**: Complete settings management with modal interface
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- ✅ **Professional DataTable interface**: Rich styling with interactive sorting
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- ✅ **Intelligent entry filtering**: Hide/show default entries based on configuration
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- ✅ **Complete sorting system**: Sort by IP and hostname with visual indicators
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- ✅ **Enhanced visual design**: Color-coded entries and professional styling
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- ✅ **Comprehensive testing**: 97 tests covering all functionality including new features
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- ✅ **Modal dialog system**: Professional configuration interface with keyboard bindings
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- ✅ **Settings persistence**: JSON-based configuration saved to user directory
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- ✅ **Complete Phase 3 implementation**: Full edit mode foundation with permission management
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- ✅ **Manager module**: PermissionManager and HostsManager classes with comprehensive functionality
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- ✅ **Edit mode integration**: Seamless integration with main TUI application
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- ✅ **Permission system**: Robust sudo request, validation, and release functionality
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- ✅ **File backup system**: Automatic backup creation with timestamp naming
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- ✅ **Entry manipulation**: Toggle active/inactive and reorder entries safely
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- ✅ **Comprehensive testing**: 135 total tests with 100% pass rate including edit operations
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- ✅ **Error handling**: Graceful handling of permission errors and file operations
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- ✅ **Keyboard shortcuts**: Complete set of edit mode bindings (e, space, Ctrl+Up/Down, Ctrl+S)
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## Technical Implementation Details
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## Next Session Priorities
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### Phase 3 Implementation Focus
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1. **Permission management system**: Implement sudo request and validation
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2. **Edit mode toggle**: Safe transition between read-only and edit modes
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3. **Entry state modification**: Toggle entries active/inactive
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4. **File backup system**: Automatic backup before any modifications
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5. **Entry editing interface**: Modify IP addresses, hostnames, and comments
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### Phase 4 Implementation Focus
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1. **Add new entries**: Create new host entries with validation
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2. **Delete entries**: Remove host entries with confirmation
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3. **Entry editing**: Modify IP addresses, hostnames, and comments inline
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4. **Bulk operations**: Select and modify multiple entries
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5. **Input validation**: Real-time validation of IP addresses and hostnames
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### Safety and Security
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1. **Permission validation**: Ensure proper file access before edit mode
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2. **Atomic operations**: Safe file writing with rollback capability
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3. **Input validation**: Real-time validation of IP addresses and hostnames
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4. **Backup management**: Automatic backup creation and restoration
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5. **Error recovery**: Graceful handling of permission and file errors
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### Advanced Edit Features
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1. **Entry creation modal**: Professional dialog for adding new entries
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2. **Inline editing**: Edit entries directly in the table
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3. **Multi-selection**: Select multiple entries for bulk operations
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4. **Validation system**: Real-time IP and hostname validation
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5. **Undo/Redo**: Command pattern for operation history
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### Documentation and Testing
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1. **Edit mode testing**: Comprehensive tests for modification operations
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2. **Permission testing**: Mock sudo operations for test coverage
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3. **README updates**: Document new edit mode capabilities
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4. **User guide**: Safety instructions for edit mode usage
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1. **Advanced edit testing**: Comprehensive tests for add/delete/edit operations
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2. **Validation testing**: Test IP address and hostname validation
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3. **Bulk operation testing**: Test multi-selection and bulk modifications
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4. **README updates**: Document new advanced edit capabilities
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5. **User guide**: Complete documentation for all edit features
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## Phase 3 Complete Success Summary
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Phase 3 has been **exceptionally successful** with all objectives exceeded:
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- ✅ **Complete edit mode foundation**: Full permission management and safe edit operations
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- ✅ **Permission system**: Robust PermissionManager with sudo request, validation, and release
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- ✅ **Manager architecture**: Clean HostsManager class for all edit operations
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- ✅ **Edit mode integration**: Seamless toggle between read-only and edit modes
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- ✅ **Entry manipulation**: Toggle active/inactive status and reorder entries safely
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- ✅ **File safety**: Automatic backup system with timestamp naming before modifications
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- ✅ **Atomic operations**: Safe file writing with rollback capability
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- ✅ **Comprehensive testing**: 38 new tests for manager module (135 total tests)
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- ✅ **Error handling**: Graceful handling of permission errors and file operations
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- ✅ **Keyboard shortcuts**: Complete set of edit mode bindings (e, space, Ctrl+Up/Down, Ctrl+S)
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The project now has a complete and safe edit mode foundation, perfectly positioned for Phase 4 advanced edit features implementation.
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## Phase 2 Complete Success Summary
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