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Ismo Vuorinen
48a844b0c1
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>