- Created `test_filters.py` to test the EntryFilter and FilterOptions classes, covering default values, custom values, filtering by status, DNS type, resolution status, and search functionality.
- Implemented tests for combined filters and edge cases in filtering.
- Added `test_import_export.py` to test the ImportExportService class, including exporting to hosts, JSON, and CSV formats, as well as importing from these formats.
- Included tests for handling invalid formats, missing required columns, and warnings during import.
- Updated `uv.lock` to include `pytest-asyncio` as a dependency for asynchronous testing.
- Added command classes: ToggleEntryCommand, MoveEntryCommand, AddEntryCommand, DeleteEntryCommand, UpdateEntryCommand.
- Integrated UndoRedoHistory to manage command execution and history.
- Updated HostsManager to use command-based methods for editing entries with undo/redo support.
- Enhanced HostsManagerApp to display undo/redo status and handle undo/redo actions via keyboard shortcuts.
- Refactored navigation handler to utilize command-based methods for toggling and moving entries.
- Created comprehensive tests for command classes and integration with HostsManager.
- Implemented add_entry method in HostsManager for adding new entries.
- Created AddEntryModal for user input when adding entries.
- Implemented delete_entry method in HostsManager for removing entries.
- Created DeleteConfirmationModal for user confirmation before deletion.
- Integrated modals into HostsManagerApp for adding and deleting entries.
- Added search functionality with SearchModal for finding entries by hostname or IP address.
- Updated keybindings to include shortcuts for adding and deleting entries.
- Added HelpModal to provide keyboard shortcuts and usage information.
- Updated test cases in test_manager.py to improve readability and consistency.
- Simplified assertions and mock setups in tests for PermissionManager.
- Enhanced test coverage for HostsManager, including edit mode and entry manipulation tests.
- Improved test structure in test_models.py for HostEntry and HostsFile, ensuring clarity in test cases.
- Refined test cases in test_parser.py for better organization and readability.
- Adjusted test_save_confirmation_modal.py to maintain consistency in mocking and assertions.
- Updated header title to "/etc/hosts Manager" and modified subtitle format.
- Implemented a dedicated overlay status bar for error messages, ensuring no layout shifts.
- Refactored entry details display to use DataTable with labeled rows for improved consistency.
- Added CSS styles for the new status bar and DataTable.
- Created tests for status bar visibility and DataTable functionality, ensuring all tests pass.
- Implement DetailsHandler for managing entry details display and edit forms.
- Create EditHandler to handle edit mode operations, including validation and saving of entry changes.
- Introduce NavigationHandler for entry movement and action operations.
- Define key bindings for various application actions in keybindings.py.
- Add TableHandler for managing the data table, including sorting and filtering of entries.
- Establish CSS styles for consistent theming across the application.
- Update tests to reflect changes in module structure and ensure proper functionality.
- Implemented SaveConfirmationModal to prompt users for saving changes when exiting edit mode.
- Integrated modal into HostsManagerApp to handle unsaved changes.
- Added methods to validate and save entry changes, restoring original values if discarded.
- Created unit tests for SaveConfirmationModal and its integration with the main application.
- Refactored entry editing logic to track changes and confirm before exiting edit mode.
- 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.
- 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.
