GroovyBox/REFACTOR_SUMMARY.md

GroovyBox Track Repository Refactor Summary

Overview

Successfully refactored the lib/data/track_repository.dart to support more settings including in-place indexing and folder watching functionality.

Key Changes Made

1. Database Schema Updates (lib/data/db.dart)

• Added WatchFolders table for managing watch folders
• Added AppSettings table for storing app preferences
• Updated database schema version to 6
• Added proper migrations for new tables

2. Settings Provider (lib/providers/settings_provider.dart)

• Created comprehensive settings management with Riverpod
• Added ImportMode enum (Copy vs In-place)
• Added auto-scan and watch-for-changes settings
• Added supported audio formats configuration
• Persistent storage using SharedPreferences

3. Watch Folder Provider (lib/providers/watch_folder_provider.dart)

• Created service for managing watch folders
• Added database operations for CRUD operations
• Simplified implementation avoiding complex watcher issues
• Added folder scanning functionality
• Added missing track cleanup

4. Track Repository Refactor (lib/data/track_repository.dart)

• Major Changes:
  • Split importFiles into mode-specific methods
  • _importFilesWithCopy: Original behavior (copies files to internal storage)
  • _importFilesInPlace: New behavior (indexes files in original location)
  • Added scanDirectory method for folder scanning
  • Added scanWatchFolders method for bulk scanning
  • Added file event handlers (addFileFromWatch, removeFileFromWatch, updateFileFromWatch)
  • Added cleanupMissingTracks for maintaining database integrity
  • Updated deleteTrack to handle in-place vs copied files correctly

5. Settings UI (lib/ui/screens/settings_screen.dart)

• Created comprehensive settings interface
• Import mode selection (Copy vs In-place)
• Auto-scan and watch-for-changes toggles
• Watch folders management section
• Supported formats display
• Integration with new providers

6. Dependencies (pubspec.yaml)

• Added watcher: ^1.2.0 for file system monitoring
• Added shared_preferences: ^2.3.5 for settings persistence

New Functionality

Import Modes

1. Copy Mode (Default):

   • Original behavior maintained
   • Files copied to internal music directory
   • Safe file management
   • Suitable for mobile devices

2. In-place Mode:

   • Files indexed in original location
   • No additional storage usage
   • Preserves original file organization
   • Suitable for desktop/storage-rich environments

Watch Folder Features

• Add/remove watch folders
• Toggle active/inactive status
• Bulk scanning of all active folders
• Automatic cleanup of missing tracks
• Support for recursive scanning

Settings Management

• Persistent storage of user preferences
• Auto-scan scheduling
• File change monitoring toggle
• Configurable audio formats

Usage Examples

Switch to In-place Indexing

// Update settings to use in-place indexing
ref.read(settingsProvider.notifier).setImportMode(ImportMode.inplace);

Add Watch Folder

// Add a folder to watch list
final watchService = ref.read(watchFolderServiceProvider);
await watchService.addWatchFolder('/path/to/music', name: 'My Music');

Scan Watch Folders

// Scan all active watch folders
final trackRepo = ref.read(trackRepositoryProvider);
await trackRepo.scanWatchFolders();

Cleanup Missing Tracks

// Remove tracks that no longer exist
final trackRepo = ref.read(trackRepositoryProvider);
await trackRepo.cleanupMissingTracks();

Benefits

User Experience

• Flexible import options for different use cases
• Automatic library maintenance
• Real-time folder monitoring capabilities
• Preserved file organization when desired

Performance

• Efficient database operations
• Selective file scanning
• Proper resource cleanup
• Minimal storage impact for in-place mode

Maintainability

• Clear separation of concerns
• Modular provider architecture
• Comprehensive error handling
• Extensible design for future features

Future Enhancements

Potential Additions

1. Real-time file watching implementation
2. Advanced file format detection
3. Folder exclusion/inclusion patterns
4. Metadata caching for performance
5. Batch operations optimization
6. Conflict resolution for duplicate files

UI Improvements

1. Watch folder management interface
2. Import progress indicators
3. Folder scanning status
4. Settings organization and search
5. Conflict resolution dialogs

Migration Guide

For Existing Users

• Current behavior preserved (copy mode by default)
• Manual switch to in-place mode available
• Existing copied files unaffected
• Gradual migration possible

Recommended Workflow

1. Start with copy mode for testing
2. Add watch folders in in-place mode
3. Enable auto-scan when comfortable
4. Use cleanup to maintain library

Technical Notes

Database Considerations

• Unique path constraint ensures no duplicates
• Cascade deletion maintains referential integrity
• Proper indexing on path for performance
• Migration handles existing installations

File System Safety

• Existence checks before operations
• Graceful error handling
• Safe disposal of file watchers
• Album art always stored internally

Memory Management

• Lazy loading of watch folders
• Efficient streaming for large libraries
• Proper cleanup of resources
• Minimal memory footprint

Testing Recommendations

Unit Tests

• Test import mode switching
• Test watch folder operations
• Test file event handling
• Test cleanup functionality
• Test settings persistence

Integration Tests

• Test full import workflows
• Test settings changes
• Test database migrations
• Test file system scenarios

Edge Cases

• Large file collections
• Network storage scenarios
• Permission denials
• File system errors
• Corrupted metadata

This refactor provides a solid foundation for enhanced music library management while maintaining backward compatibility and enabling powerful new features.