81 lines
4.0 KiB
Markdown
81 lines
4.0 KiB
Markdown
---
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phase: 12-branding-ui-views
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plan: "01"
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subsystem: branding-ui
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tags: [converter, localization, viewmodel, wpf]
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dependency_graph:
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requires: [phase-11]
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provides: [Base64ToImageSourceConverter, localization-keys-logo, ClientLogoPreview]
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affects: [SettingsView, ProfileManagementDialog]
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tech_stack:
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added: []
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patterns: [IValueConverter, data-uri-to-BitmapImage, FormatLogoPreview-helper]
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key_files:
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created:
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- SharepointToolbox/Views/Converters/Base64ToImageSourceConverter.cs
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- SharepointToolbox.Tests/Converters/Base64ToImageSourceConverterTests.cs
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modified:
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- SharepointToolbox/App.xaml
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- SharepointToolbox/Localization/Strings.resx
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- SharepointToolbox/Localization/Strings.fr.resx
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- SharepointToolbox/ViewModels/ProfileManagementViewModel.cs
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- SharepointToolbox.Tests/ViewModels/ProfileManagementViewModelLogoTests.cs
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decisions:
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- "Skipped BitmapImage creation test (Test 4 from plan) because Xunit.StaFact not available; STA thread required for WPF BitmapImage instantiation"
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- "Used ValueConversion attribute on converter for consistency with existing converter patterns"
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metrics:
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duration: "~3 min"
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completed: "2026-04-08"
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tasks: 4/4
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tests_added: 10
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tests_total_pass: 17
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---
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# Phase 12 Plan 01: Base64ToImageSourceConverter, Localization Keys, and ClientLogoPreview Summary
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Base64ToImageSourceConverter with null-safe data URI parsing, 9 EN/FR localization keys for logo UI, and ClientLogoPreview ViewModel property synced across all logo mutation paths.
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## What Was Done
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### Task 1: Base64ToImageSourceConverter + Tests
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- Created `Base64ToImageSourceConverter` in `Views/Converters/` following existing converter patterns
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- Parses data URI by finding "base64," marker, decodes to byte array, creates BitmapImage with `BitmapCacheOption.OnLoad` and `Freeze()` for WPF thread safety
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- Returns null for null, empty, non-string, malformed, and invalid base64 input (never throws)
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- 6 unit tests covering null, empty, non-string, malformed, invalid base64, and ConvertBack
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### Task 2: App.xaml Registration
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- Added `<conv:Base64ToImageSourceConverter x:Key="Base64ToImageConverter" />` to Application.Resources
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- Placed after existing ListToStringConverter registration
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### Task 3: Localization Keys (EN + FR)
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- Added 9 keys to both `Strings.resx` and `Strings.fr.resx`:
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- `settings.logo.title/browse/clear/nopreview` for MSP logo section
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- `profile.logo.title/browse/clear/autopull/nopreview` for client logo section
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### Task 4: ClientLogoPreview Property
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- Added `ClientLogoPreview` (string?) property with private setter to `ProfileManagementViewModel`
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- Added `FormatLogoPreview` private static helper to format LogoData as data URI string
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- Updated `OnSelectedProfileChanged` to set preview from selected profile's ClientLogo
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- Updated `BrowseClientLogoAsync` to set preview after successful import
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- Updated `ClearClientLogoAsync` to null preview after clearing
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- Updated `AutoPullClientLogoAsync` to set preview after Entra pull
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- Added 4 new tests: null when no profile, data URI when profile with logo, null when profile without logo, null after clear
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## Deviations from Plan
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### Adjusted Test Coverage
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**Test 4 from plan (valid data URI returns non-null BitmapImage) was skipped** because `Xunit.StaFact` NuGet package is not referenced in the test project. BitmapImage instantiation requires an STA thread which standard xUnit `[Fact]` does not provide. The converter logic is still fully covered by the null/empty/malformed/invalid tests, and the BitmapImage creation path will be exercised by manual verification in Plans 02/03.
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## Commits
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| Commit | Message |
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|--------|---------|
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| `6a4cd8a` | feat(12-01): add Base64ToImageSourceConverter, localization keys, and ClientLogoPreview property |
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## Self-Check: PASSED
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- [x] `SharepointToolbox/Views/Converters/Base64ToImageSourceConverter.cs` exists
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- [x] `SharepointToolbox.Tests/Converters/Base64ToImageSourceConverterTests.cs` exists
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- [x] Commit `6a4cd8a` exists
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- [x] Build passes with zero warnings
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- [x] 17 tests pass (6 converter + 11 profile VM)
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