docs(19-02): complete WAV tag writer tests plan
- SUMMARY.md with 7 test results and 2 deviations documented - STATE.md: Phase 19 complete, all WAV requirements verified - ROADMAP.md: Phase 19 marked complete - REQUIREMENTS.md: WAV-06 marked complete
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@@ -23,7 +23,7 @@ Requirements for Format Parity milestone. Each maps to roadmap phases.
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- [x] **WAV-03**: WAV tag writes preserve audio data identically (lossless round-trip)
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- [x] **WAV-04**: User can embed, replace, and remove cover art in WAV files via ID3v2 APIC frame
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- [x] **WAV-05**: WAV tag writing uses crash-safe atomic writes (write-to-temp-then-rename)
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- [ ] **WAV-06**: WAV writer round-trip tests verify all fields via dhowden/tag read-back
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- [x] **WAV-06**: WAV writer round-trip tests verify all fields via dhowden/tag read-back
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### Cleanup
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@@ -70,7 +70,7 @@ Which phases cover which requirements. Updated during roadmap creation.
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| WAV-03 | Phase 19 | Complete |
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| WAV-04 | Phase 19 | Complete |
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| WAV-05 | Phase 19 | Complete |
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| WAV-06 | Phase 19 | Pending |
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| WAV-06 | Phase 19 | Complete |
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| OGG-01 | Phase 20 | Pending |
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| OGG-02 | Phase 20 | Pending |
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| OGG-03 | Phase 20 | Pending |
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@@ -52,7 +52,7 @@
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### v1.2.1 Format Parity (Phases 19-21)
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- [ ] **Phase 19: WAV Tag Writer** — Full metadata and cover art writing for WAV files via ID3v2-in-RIFF
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- [x] **Phase 19: WAV Tag Writer** — Full metadata and cover art writing for WAV files via ID3v2-in-RIFF (completed 2026-03-19)
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- [ ] **Phase 20: OGG Vorbis Tag Writer** — Full metadata and cover art writing for OGG Vorbis files via custom page rewriter
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- [ ] **Phase 21: Cleanup** — Fix lint warnings and small issues carried forward from v1.2
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@@ -68,7 +68,7 @@
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3. Editing a WAV file's tags does not alter audio playback — the file sounds identical before and after
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4. Existing metadata in the WAV file that wasn't edited (RIFF INFO chunks, bext, cue markers) survives the tag write unchanged
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5. If the app crashes or loses power during a WAV tag write, the original file is intact (not corrupted or truncated)
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**Plans:** 1/2 plans executed
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**Plans:** 2/2 plans complete
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Plans:
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- [ ] 19-01-PLAN.md — WAV RIFF parser/writer and writeWavTags function
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@@ -117,7 +117,7 @@ Plans:
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| 16. Tag Writing & Database Sync | v1.2 | 3/3 | Complete | 2026-03-17 |
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| 17. Single Track Edit | v1.2 | 2/2 | Complete | 2026-03-18 |
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| 18. Batch Edit | v1.2 | 2/2 | Complete | 2026-03-18 |
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| 19. WAV Tag Writer | 1/2 | In Progress| | - |
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| 19. WAV Tag Writer | 2/2 | Complete | 2026-03-19 | - |
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| 20. OGG Vorbis Tag Writer | v1.2.1 | 0/? | Not started | - |
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| 21. Cleanup | v1.2.1 | 0/? | Not started | - |
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+16
-14
@@ -3,12 +3,12 @@ gsd_state_version: 1.0
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milestone: "v1.2.1"
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milestone_name: "Format Parity"
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status: executing
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last_updated: "2026-03-19T12:45:01.000Z"
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last_updated: "2026-03-19T12:58:09.000Z"
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progress:
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total_phases: 3
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completed_phases: 0
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completed_phases: 1
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total_plans: 2
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completed_plans: 1
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completed_plans: 2
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---
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# YellowJacket — Project State
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@@ -18,18 +18,18 @@ progress:
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See: .planning/PROJECT.md (updated 2026-03-18)
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**Core value:** The music player works reliably and feels solid — every interaction is correct, responsive, and trustworthy.
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**Current focus:** v1.2.1 Format Parity — executing Phase 19 (WAV Tag Writer)
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**Current focus:** v1.2.1 Format Parity — Phase 19 complete, ready for next phase
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## Current Position
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Phase: 19 — WAV Tag Writer
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Plan: 2 of 2
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Status: Executing — completed 19-01, next 19-02
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Last activity: 2026-03-19 — Completed 19-01-PLAN.md (WAV tag writer implementation)
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Phase: 19 — WAV Tag Writer (COMPLETE)
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Plan: 2 of 2 (all complete)
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Status: Phase complete — all WAV requirements (WAV-01 through WAV-06) verified
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Last activity: 2026-03-19 — Completed 19-02-PLAN.md (WAV tag writer tests)
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```
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v1.2.1 Format Parity
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[███░░░░░░░░░░░░░░░░░] 1/3 phases (in progress)
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[███████░░░░░░░░░░░░░] 1/3 phases complete
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```
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## Performance Metrics
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@@ -41,6 +41,7 @@ v1.2.1 Format Parity
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| Phase | Plan | Duration | Tasks | Files |
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|-------|------|----------|-------|-------|
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| 19-01 | WAV tag writer impl | 5 min | 2 | 4 |
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| 19-02 | WAV tag writer tests | 9 min | 3 | 2 |
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## Accumulated Context
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@@ -61,6 +62,7 @@ All decisions archived in PROJECT.md Key Decisions table and RETROSPECTIVE.md. K
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- Three-state field model via implicit dirty tracking (editValues map presence)
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- Custom RIFF parser for WAV: lenient-read/strict-write, ID3v2 chunk at end of file
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- WAV writer reuses MP3's applyTextChanges/applyCoverArtChanges for ID3v2 tag manipulation
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- WAV test read-back uses bogem/id3v2.ParseReader (dhowden/tag ReadFrom does not support WAV)
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### Warnings (carry forward)
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@@ -84,9 +86,9 @@ All decisions archived in PROJECT.md Key Decisions table and RETROSPECTIVE.md. K
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### Last Session
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**Date:** 2026-03-19
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**What happened:** Executed 19-01-PLAN.md — WAV tag writer implementation. Created RIFF parser/writer, writeWavTags function, FormatWAV constant, pipeline dispatch. Fixed album_artist TPE2 mapping.
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**Where we stopped:** Completed 19-01-PLAN.md
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**Next action:** `/gsd-execute-phase 19` to execute 19-02-PLAN.md (WAV tag writer tests)
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**What happened:** Executed 19-02-PLAN.md — WAV tag writer tests. Created 7 round-trip tests verifying all WAV requirements (WAV-01 through WAV-06). Used bogem/id3v2 ParseReader for read-back.
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**Where we stopped:** Completed 19-02-PLAN.md — Phase 19 complete
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**Next action:** `/gsd-plan-phase` for next phase (OGG Vorbis or next milestone phase)
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---
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*State initialized: 2026-02-27*
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@@ -99,5 +101,5 @@ All decisions archived in PROJECT.md Key Decisions table and RETROSPECTIVE.md. K
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| 18 | add multi-column metadata display to playlist-details | 2026-03-08 | ce23177 | [18-add-multi-column-metadata-display-to-pla](./quick/18-add-multi-column-metadata-display-to-pla/) |
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| 19 | fix phantom playlist tracks with multi-root path resolution | 2026-03-16 | 9144ded | [19-fix-phantom-playlist-tracks](./quick/19-fix-phantom-playlist-tracks/) |
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Last activity: 2026-03-19 - completed 19-01-PLAN.md
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*Last updated: 2026-03-19 — completed 19-01-PLAN.md (WAV tag writer implementation)*
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Last activity: 2026-03-19 - completed 19-02-PLAN.md
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*Last updated: 2026-03-19 — completed 19-02-PLAN.md (WAV tag writer tests — Phase 19 complete)*
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@@ -0,0 +1,125 @@
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---
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phase: 19-wav-tag-writer
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plan: 02
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subsystem: tagwriter
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tags: [wav, riff, id3v2, round-trip-tests, bogem-id3v2]
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# Dependency graph
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requires:
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- phase: 19-wav-tag-writer
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provides: "writeWavTags function, RIFF parser/writer, FormatWAV pipeline dispatch"
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provides:
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- "7 WAV round-trip tests covering all WAV requirements (WAV-01 through WAV-06)"
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- "createTestWAV fixture builder for WAV test files"
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- "readWavID3Tags read-back helper using bogem/id3v2 ParseReader"
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- "createTestWAVWithExtraChunks for chunk preservation testing"
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affects: [20-ogg-vorbis-tag-writer]
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# Tech tracking
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tech-stack:
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added: []
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patterns: ["bogem/id3v2 ParseReader for WAV ID3v2 read-back (dhowden/tag ReadFrom does not support WAV)", "RIFF chunk preservation verification via byte-equal comparison"]
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key-files:
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created:
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- backend/tagwriter/wav_test.go
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modified:
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- backend/tagwriter/wav.go
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key-decisions:
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- "Used bogem/id3v2.ParseReader instead of dhowden/tag.ReadID3v2Tags for test read-back — handles empty tags (cleared cover art) correctly"
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- "Fixed wsl lint warning in wav.go writeRIFF (cuddled copy expression) from Plan 01"
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patterns-established:
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- "WAV test read-back: extract id3 chunk via parseRIFF, parse with bogem/id3v2.ParseReader, convert to TrackMetadata"
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- "Chunk preservation testing: compare pre/post byte data for each non-ID3 chunk"
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requirements-completed: [WAV-01, WAV-02, WAV-03, WAV-04, WAV-05, WAV-06]
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# Metrics
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duration: 9min
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completed: 2026-03-19
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---
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# Phase 19 Plan 02: WAV Tag Writer Tests Summary
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**7 round-trip tests for WAV ID3v2 tag writing: text fields, cover art, clear art, partial update, chunk preservation, atomic safety, and RF64 rejection**
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## Performance
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- **Duration:** 9 min
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- **Started:** 2026-03-19T12:48:10Z
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- **Completed:** 2026-03-19T12:58:09Z
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- **Tasks:** 3
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- **Files modified:** 2
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## Accomplishments
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- Created test fixture builder (createTestWAV) producing minimal valid WAV files with optional ID3v2 tags
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- Created RIFF-aware read-back helper using bogem/id3v2.ParseReader (dhowden/tag cannot read WAV files)
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- Verified all 9 text fields round-trip correctly (Title, Artist, Album, AlbumArtist, Genre, Year, TrackNumber, DiscNumber, Composer)
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- Verified cover art embed, replace, and clear operations
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- Verified partial updates preserve unchanged fields
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- Verified non-ID3v2 chunks (fmt, data, LIST INFO, bext) are byte-identical after tag write
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- Verified atomic safety: failed write leaves original file untouched
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- Verified RF64 files are rejected with clear error message
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- Fixed all wsl lint warnings in WAV files (zero remaining lint issues in wav.go and wav_test.go)
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Create WAV test fixture builder and read-back helper** - `21fe172` (test)
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2. **Task 2: Write round-trip tests for all WAV requirements** - `1b28882` (test)
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3. **Task 3: Full test suite verification and lint fixes** - `f11b523` (style)
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## Files Created/Modified
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- `backend/tagwriter/wav_test.go` - 7 test functions, 3 test helpers (createTestWAV, readWavID3Tags, createTestWAVWithExtraChunks), ~665 lines
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- `backend/tagwriter/wav.go` - Fixed wsl lint warning (cuddled copy expression in writeRIFF)
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## Decisions Made
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- Used bogem/id3v2.ParseReader instead of dhowden/tag.ReadID3v2Tags for WAV read-back — dhowden/tag.ReadID3v2Tags fails on empty tags (after clearing all APIC frames), while bogem handles all cases
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- Fixed lint warning in wav.go from Plan 01 (in scope since it's a phase-19 file)
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## Deviations from Plan
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### Auto-fixed Issues
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**1. [Rule 1 - Bug] dhowden/tag ReadID3v2Tags fails on empty ID3v2 tags**
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- **Found during:** Task 2 (TestWriteWavTags_ClearCoverArt)
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- **Issue:** Plan specified using `tag.ReadID3v2Tags()` for read-back, but it fails with EOF when parsing an ID3v2 tag with no frames (after clearing all cover art)
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- **Fix:** Switched readWavID3Tags helper to use `bogem/id3v2.ParseReader()` which handles empty tags correctly, then manually extracts fields from the bogem tag object
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- **Files modified:** backend/tagwriter/wav_test.go
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- **Verification:** TestWriteWavTags_ClearCoverArt passes
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- **Committed in:** 1b28882 (Task 2 commit)
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**2. [Rule 3 - Blocking] wsl lint warnings in wav_test.go and wav.go**
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- **Found during:** Task 3 (make lint)
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- **Issue:** Multiple "only cuddled expressions if assigning variable or using from line above" warnings from wsl linter
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- **Fix:** Added blank lines before cuddled expressions in both wav_test.go and wav.go
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- **Files modified:** backend/tagwriter/wav_test.go, backend/tagwriter/wav.go
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- **Verification:** make lint shows zero warnings in WAV files
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- **Committed in:** f11b523 (Task 3 commit)
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---
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**Total deviations:** 2 auto-fixed (1 bug, 1 blocking)
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**Impact on plan:** ReadID3v2Tags limitation required alternative approach for read-back; lint fixes are mechanical. No scope creep.
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## Issues Encountered
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None
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- WAV tag writer is fully implemented and tested (WAV-01 through WAV-06 complete)
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- Phase 19 (WAV Tag Writer) is complete
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- Ready for Phase 20 (OGG Vorbis Tag Writer) or next milestone phase
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## Self-Check: PASSED
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All created files verified on disk. All commit hashes found in git log. wav_test.go is 664 lines (exceeds 200 min_lines requirement).
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---
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*Phase: 19-wav-tag-writer*
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*Completed: 2026-03-19*
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Block a user