129 lines
4.5 KiB
Markdown
129 lines
4.5 KiB
Markdown
# Flutter Migration Guide
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## Migration from Electron to Flutter
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The rmtPocketWatcher application has been successfully migrated from Electron + React to Flutter for true cross-platform support.
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### What Changed
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**Before (Electron):**
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- Electron + React + TypeScript
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- Windows desktop only
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- ~100MB bundle size
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- WebView-based rendering
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**After (Flutter):**
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- Flutter + Dart
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- Windows, macOS, Linux, Android, iOS support
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- ~15-20MB bundle size
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- Native rendering
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### Project Structure
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```
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flutter_app/
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├── lib/
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│ ├── main.dart # App entry point
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│ ├── models/
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│ │ └── price_data.dart # Data models (PriceData, LatestPrice, PriceAlert)
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│ ├── providers/
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│ │ └── price_provider.dart # State management with Provider
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│ ├── screens/
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│ │ └── home_screen.dart # Main dashboard screen
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│ ├── services/
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│ │ ├── api_service.dart # REST API communication
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│ │ ├── websocket_service.dart # WebSocket connection
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│ │ └── storage_service.dart # Local storage (SharedPreferences)
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│ └── widgets/
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│ ├── alerts_panel.dart # Price alerts UI
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│ ├── price_chart.dart # Historical price chart
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│ ├── price_stats_card.dart # Stats display cards
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│ └── vendor_table.dart # Vendor comparison table
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├── assets/ # Images, fonts, etc.
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├── .env # Environment configuration
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└── pubspec.yaml # Dependencies
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```
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### Key Features Preserved
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✅ **Real-time price tracking** - WebSocket connection to backend
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✅ **Bloomberg-style dashboard** - Stats cards, charts, vendor table
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✅ **Price alerts** - Client-side evaluation with notifications
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✅ **Historical charts** - Interactive price history with fl_chart
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✅ **Vendor comparison** - Sortable table of all sellers
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✅ **Auto-reconnect** - WebSocket reconnection logic
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✅ **Local storage** - Alerts and settings persistence
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### New Capabilities
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🆕 **Mobile support** - Same app runs on Android/iOS
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🆕 **Better performance** - Native rendering, smaller memory footprint
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🆕 **Cross-platform** - Windows, macOS, Linux from same codebase
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🆕 **Material Design 3** - Modern, consistent UI across platforms
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🆕 **Responsive layout** - Adapts to different screen sizes
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### Backend Compatibility
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The Flutter app is **100% compatible** with the existing TypeScript backend:
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- Same REST API endpoints (`/prices/latest`, `/index/history`)
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- Same WebSocket protocol (`/ws/index`)
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- Same data formats (JSON)
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- No backend changes required
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### Development Commands
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```bash
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# Install dependencies
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flutter pub get
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# Run on different platforms
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flutter run -d windows # Windows desktop
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flutter run -d android # Android device/emulator
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flutter run -d ios # iOS device/simulator
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# Build releases
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flutter build windows # Windows executable
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flutter build apk # Android APK
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flutter build ipa # iOS app bundle
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# Development tools
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flutter doctor # Check setup
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flutter devices # List available devices
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flutter logs # View app logs
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```
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### Environment Configuration
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The app uses `.env` file for configuration:
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```env
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API_URL=http://localhost:3000
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WS_URL=ws://localhost:3000/ws/index
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```
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### Mobile Adaptations
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The UI automatically adapts for mobile:
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- **Desktop**: Multi-column layout with side-by-side panels
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- **Mobile**: Single-column layout with scrollable sections
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- **Responsive**: Charts and tables adjust to screen size
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- **Touch-friendly**: Larger tap targets on mobile
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### Migration Benefits
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1. **Cross-platform**: One codebase for all platforms
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2. **Performance**: 50-80% smaller memory usage
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3. **Native feel**: Platform-specific UI elements
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4. **Future-proof**: Mobile support for user growth
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5. **Maintenance**: Single codebase to maintain
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6. **Distribution**: App stores + direct downloads
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### Next Steps
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1. **Test the Flutter app**: `flutter run -d windows`
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2. **Verify backend connection**: Ensure backend is running
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3. **Test on mobile**: Run on Android/iOS devices
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4. **Build releases**: Create platform-specific builds
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5. **Update deployment**: Replace Electron builds with Flutter
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The migration preserves all functionality while adding mobile support and improving performance. The backend remains unchanged, ensuring a smooth transition. |