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48a844b0c1
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feat: implement ViewModels layer with TDD (Milestone 3)
Implemented all ViewModels using strict TDD (RED-GREEN-REFACTOR) with CommunityToolkit.Mvvm.
**ViewModels Implemented:**
- MainViewModel: Coordinates shake detection, estimate generation, and display
- HistoryViewModel: Manages estimate history display and clearing
- SettingsViewModel: Handles app settings (mode selection, history size)
**MainViewModel Features:**
- Subscribes to ShakeDetectionService events
- Generates estimates when shake stops (transition from shaking→not shaking)
- Automatically saves estimates to storage
- Resets shake detection after estimate generation
- Loads and saves settings (SelectedMode)
- Proper disposal pattern (unsubscribe, stop monitoring)
**HistoryViewModel Features:**
- ObservableCollection<EstimateResult> for UI binding
- LoadHistoryCommand to fetch from storage
- ClearHistoryCommand to remove all history
- IsEmpty property for conditional UI display
- Replaces collection contents on reload
**SettingsViewModel Features:**
- SelectedMode property (Work/Generic)
- MaxHistorySize property
- SaveSettingsCommand to persist changes
- Loads settings on initialization
**Tests:**
- MainViewModel: 18 tests (RED-GREEN-REFACTOR)
- HistoryViewModel: 15 tests (RED-GREEN-REFACTOR)
- SettingsViewModel: 13 tests (RED-GREEN-REFACTOR)
- Total: 165 tests, all passing (48 models + 71 services + 46 ViewModels)
**Quality:**
- Build: 0 warnings, 0 errors across all platforms
- All tests use NSubstitute for mocking
- Property change notifications verified
- Async operations properly tested
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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2025-11-18 12:44:07 +02:00 |
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