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Archive 5 phases (36 plans) to milestones/v1.0-phases/. Archive roadmap, requirements, and audit to milestones/. Evolve PROJECT.md with shipped state and validated requirements. Collapse ROADMAP.md to one-line milestone summary. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
95 lines
4.5 KiB
Markdown
95 lines
4.5 KiB
Markdown
---
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phase: 03
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plan: 02
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title: StorageService — CSOM StorageMetrics Scan Engine
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subsystem: storage
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tags: [csom, storage-metrics, scan-engine, c#]
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status: complete
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dependency_graph:
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requires:
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- 03-01 (StorageNode, StorageScanOptions, IStorageService, export stubs, test scaffolds)
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provides:
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- StorageService (IStorageService implementation — CSOM scan engine)
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affects:
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- 03-07 (StorageViewModel will consume IStorageService via DI)
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tech_stack:
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added: []
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patterns:
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- CSOM StorageMetrics loading pattern (ctx.Load with f => f.StorageMetrics expression)
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- ExecuteQueryRetryHelper.ExecuteQueryRetryAsync for all CSOM round-trips
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- Recursive subfolder scan with system folder filtering (Forms/, _-prefixed)
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- CancellationToken guard at top of every recursive step
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key_files:
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created:
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- SharepointToolbox/Services/StorageService.cs
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- SharepointToolbox/Services/Export/StorageCsvExportService.cs
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- SharepointToolbox/Services/Export/StorageHtmlExportService.cs
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- SharepointToolbox/Services/Export/SearchCsvExportService.cs
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- SharepointToolbox/Services/Export/SearchHtmlExportService.cs
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- SharepointToolbox/Services/Export/DuplicatesHtmlExportService.cs
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- SharepointToolbox.Tests/Services/StorageServiceTests.cs
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- SharepointToolbox.Tests/Services/SearchServiceTests.cs
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- SharepointToolbox.Tests/Services/DuplicatesServiceTests.cs
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- SharepointToolbox.Tests/Services/Export/StorageCsvExportServiceTests.cs
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- SharepointToolbox.Tests/Services/Export/StorageHtmlExportServiceTests.cs
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- SharepointToolbox.Tests/Services/Export/SearchExportServiceTests.cs
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- SharepointToolbox.Tests/Services/Export/DuplicatesHtmlExportServiceTests.cs
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modified: []
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decisions:
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- StorageService.VersionSizeBytes is derived (TotalSizeBytes - FileStreamSizeBytes, Math.Max 0) — not stored separately; set on StorageNode model
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- System folder filter uses Forms/ and _-prefix heuristic — matches SharePoint standard hidden folders
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- LastModified uses StorageMetrics.LastModified with fallback to Folder.TimeLastModified — StorageMetrics.LastModified may be DateTime.MinValue for empty libraries
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metrics:
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duration: "1 min"
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completed_date: "2026-04-02"
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tasks_completed: 1
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files_created: 13
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files_modified: 0
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---
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# Phase 3 Plan 02: StorageService — CSOM StorageMetrics Scan Engine Summary
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**One-liner:** CSOM scan engine implementing IStorageService using Folder.StorageMetrics with recursive subfolder traversal and ExecuteQueryRetryAsync on every round-trip.
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## What Was Built
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`StorageService` is the concrete implementation of `IStorageService`. It takes an already-authenticated `ClientContext` from the ViewModel and:
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1. Loads all web lists in one CSOM round-trip, filtering to visible document libraries
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2. For each library root folder, loads `Folder.StorageMetrics` (TotalSize, TotalFileStreamSize, TotalFileCount, LastModified) and `TimeLastModified` as fallback
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3. With `FolderDepth > 0`, recurses into subfolders up to the configured depth, skipping `Forms/` and `_`-prefixed system folders
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4. Returns a flat `IReadOnlyList<StorageNode>` where library roots are at `IndentLevel=0` and subfolders at `IndentLevel=1+`
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## Deviations from Plan
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### Auto-fixed Issues
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**1. [Rule 3 - Blocking] Phase 3 export stubs and test scaffolds were absent**
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- **Found during:** Pre-task check for 03-01 prerequisites
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- **Issue:** Plan 03-01 models and interfaces existed on disk but the 5 export service stubs and 7 test scaffold files were not yet created, preventing `StorageServiceTests` from being discovered and the test filter commands from working
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- **Fix:** Created all 5 export stubs (`StorageCsvExportService`, `StorageHtmlExportService`, `SearchCsvExportService`, `SearchHtmlExportService`, `DuplicatesHtmlExportService`) and 7 test scaffold files as specified in plan 03-01
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- **Files modified:** 12 new files in `SharepointToolbox/Services/Export/` and `SharepointToolbox.Tests/Services/`
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- **Commit:** 08e4d2e
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## Test Results
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| Test Class | Passed | Skipped | Failed |
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|---|---|---|---|
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| StorageServiceTests | 2 (VersionSizeBytes) | 2 (CSOM) | 0 |
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| DuplicatesServiceTests | 5 (MakeKey) | 2 (CSOM) | 0 |
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Build: 0 errors, 0 warnings.
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## Self-Check: PASSED
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- FOUND: SharepointToolbox/Services/StorageService.cs
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- FOUND: SharepointToolbox/Services/Export/StorageCsvExportService.cs
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- FOUND: SharepointToolbox.Tests/Services/StorageServiceTests.cs
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- FOUND: commit b5df064 (feat(03-02): implement StorageService...)
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- FOUND: commit 08e4d2e (feat(03-01): create Phase 3 export stubs and test scaffolds)
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