docs(04-04): complete block inspector plan — SUMMARY, STATE, ROADMAP updated

- BlockInspector with color/speed/direction/length param controls - UpdateParamsCommand for full undo/redo param editing - Phase 04 complete (4/4 plans), TL-04 requirement marked done - Progress: 14/14 plans (100%)
2026-04-06 23:56:25 +00:00
parent 8e084ca8dc
commit 3483de871e
4 changed files with 148 additions and 12 deletions
--- a/.planning/REQUIREMENTS.md
+++ b/.planning/REQUIREMENTS.md
@@ -33,7 +33,7 @@
 - [x] **TL-01**: Per-device horizontal tracks on a time axis
 - [x] **TL-02**: Drag-and-place animation blocks onto a track
 - [x] **TL-03**: Move, resize, and delete animation blocks
- [ ] **TL-04**: Color picker per animation block
+- [x] **TL-04**: Color picker per animation block
 - [x] **TL-05**: Playback cursor (vertical line) tracking audio position in realtime
 - [x] **TL-06**: Undo/redo for all timeline mutations (min 20 steps, command pattern)
 - [x] **TL-07**: Beat detection marks overlaid on timeline (librosa beat_track)
--- a/.planning/ROADMAP.md
+++ b/.planning/ROADMAP.md
@@ -15,7 +15,7 @@ Decimal phases appear between their surrounding integers in numeric order.
 - [x] **Phase 1: Foundation** - FastAPI skeleton, show file schema (Pydantic), device registry, terminal-aesthetic frontend shell (gap closure in progress) (completed 2026-04-05)
 - [x] **Phase 2: Audio Engine** - MPV IPC bridge, waveform rendering, playback controls, Windows timer fix (completed 2026-04-06)
 - [x] **Phase 3: Communication Protocol** - UDP packet spec, DRGB/DNRGB/DRGBW encoders, animation library, software simulator (completed 2026-04-06)
- [ ] **Phase 4: Timeline Editor** - DAW UI (tracks, drag-place blocks, resize, delete), undo/redo, beat detection, snap-to-beat
+- [x] **Phase 4: Timeline Editor** - DAW UI (tracks, drag-place blocks, resize, delete), undo/redo, beat detection, snap-to-beat (completed 2026-04-06)
 - [ ] **Phase 5: Live Show Execution** - End-to-end show playback, seek-safe cue scheduling, show save/load, keyboard shortcuts, live preview
 - [ ] **Phase 6: AI Sync** - YouTube loading, AI-assisted show generation, beat calibration UI, structural segmentation
 - [ ] **Phase 7: Microcontroller Firmware** - MicroPython firmware for ESP32/Pico/RPi, animation command + frame receivers for SK6812 and WS2801
@@ -93,7 +93,7 @@ Plans:
 - [x] 04-01: Timeline canvas — per-device tracks, time axis, block rendering, playback cursor
 - [x] 04-02: Block interactions — drag-and-place, move, resize, delete; command pattern undo/redo (min 20 steps)
 - [x] 04-03: Beat detection + snap — librosa beat_track + plp + onset_detect in ProcessPoolExecutor, beat mark overlay, snap-to-beat, calibration offset UI
- [ ] 04-04: Block editor — animation library panel, color picker, parameter controls per block, changes reflected in show file
+- [x] 04-04: Block editor — animation library panel, color picker, parameter controls per block, changes reflected in show file
 **UI hint**: yes

 ### Phase 5: Live Show Execution
@@ -155,7 +155,7 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6 → 7
 | 1. Foundation | 4/4 | Complete   | 2026-04-05 |
 | 2. Audio Engine | 3/3 | Complete   | 2026-04-06 |
 | 3. Communication Protocol | 3/3 | Complete   | 2026-04-06 |
-| 4. Timeline Editor | 3/4 | In Progress|  |
+| 4. Timeline Editor | 4/4 | Complete   | 2026-04-06 |
 | 5. Live Show Execution | 0/3 | Not started | - |
 | 6. AI Sync | 0/3 | Not started | - |
 | 7. Microcontroller Firmware | 0/3 | Not started | - |
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: executing
-stopped_at: Completed 04-timeline-editor/04-03-PLAN.md
-last_updated: "2026-04-06T23:49:36.485Z"
+status: verifying
+stopped_at: Completed 04-timeline-editor/04-04-PLAN.md
+last_updated: "2026-04-06T23:56:15.933Z"
 last_activity: 2026-04-06
 progress:
  total_phases: 7
-  completed_phases: 3
+  completed_phases: 4
  total_plans: 14
-  completed_plans: 13
+  completed_plans: 14
  percent: 0
 ---

@@ -27,7 +27,7 @@ See: .planning/PROJECT.md (updated 2026-04-05)

 Phase: 04 (timeline-editor) — EXECUTING
 Plan: 4 of 4
-Status: Ready to execute
+Status: Phase complete — ready for verification
 Last activity: 2026-04-06

 Progress: [░░░░░░░░░░] 0%
@@ -65,6 +65,7 @@ Progress: [░░░░░░░░░░] 0%
 | Phase 04-timeline-editor P01 | 4min | 2 tasks | 5 files |
 | Phase 04-timeline-editor P02 | 9 | 2 tasks | 6 files |
 | Phase 04-timeline-editor P03 | 2 | 1 tasks | 3 files |
+| Phase 04-timeline-editor P04 | 4min | 2 tasks | 4 files |

 ## Accumulated Context

@@ -107,6 +108,8 @@ Recent decisions affecting current work:
 - [Phase 04-timeline-editor]: setCurrentShowId() module-level function routes backend sync without coupling commands to app state
 - [Phase 04-timeline-editor]: BeatGrid stores raw beat_times unmodified — calibrationOffset subtracted only at getCalibratedBeats()/snap() time — offset slider works without corrupting base data
 - [Phase 04-timeline-editor]: BeatGrid.load() normalizes API field variants: beats/beat_times and tempo/tempo_bpm — actual API returns 'beats'/'tempo' not the plan's expected field names
+- [Phase 04-timeline-editor]: UpdateParamsCommand uses currentShowId (module-level var) not this._showId — matches existing command pattern in commands.js
+- [Phase 04-timeline-editor]: Color input fires 'change' not 'input' to create command — avoids flooding command history during native color picker drag

 ### Pending Todos

@@ -120,8 +123,8 @@ None yet.

 ## Session Continuity

-Last session: 2026-04-06T23:49:36.477Z
-Stopped at: Completed 04-timeline-editor/04-03-PLAN.md
+Last session: 2026-04-06T23:56:15.926Z
+Stopped at: Completed 04-timeline-editor/04-04-PLAN.md
 Resume file: None

 Next action: `/gsd:plan-phase 1`
--- a/.planning/phases/04-timeline-editor/04-04-SUMMARY.md
+++ b/.planning/phases/04-timeline-editor/04-04-SUMMARY.md
@@ -0,0 +1,133 @@
+---
+phase: 04-timeline-editor
+plan: 04
+subsystem: ui
+tags: [canvas, timeline, inspector, color-picker, command-pattern, undo-redo]
+dependency_graph:
+  requires:
+    - phase: 04-timeline-editor/04-02
+      provides: CommandHistory, DeleteBlockCommand, syncBlock, selectedBlock, _onSelectBlock callback
+  provides:
+    - UpdateParamsCommand (undoable color/speed/direction/length changes)
+    - BlockInspector class rendering compact strip with all param controls
+    - Inspector show/hide wired to block selection via _onSelectBlock
+    - Block canvas fill uses params.color for visual distinction
+    - Undo/redo refreshes inspector values via re-triggered _onSelectBlock
+  affects: []
+
+tech-stack:
+  added: []
+  patterns:
+    - "BlockInspector wired via callback: timeline._onSelectBlock = (block) => inspector.show(block)"
+    - "Inspector delete wires via _onDelete callback to fire DeleteBlockCommand through timeline.history"
+    - "UpdateParamsCommand uses module-level currentShowId (same pattern as existing commands)"
+    - "Color change committed on 'change' event not 'input' — avoids command flood during color drag"
+    - "Block canvas fill uses blockColor + '1a' hex suffix for ~10% opacity color accent"
+
+key-files:
+  created:
+    - lightsync/frontend/timeline/inspector.js
+  modified:
+    - lightsync/frontend/timeline/commands.js
+    - lightsync/frontend/timeline/timeline.js
+    - lightsync/frontend/app.js
+
+key-decisions:
+  - "UpdateParamsCommand uses currentShowId (module-level var) not this._showId — matches existing command pattern in commands.js"
+  - "Color input fires 'change' (not 'input') to create command — avoids flooding command history during native color picker drag"
+
+patterns-established:
+  - "Inspector callbacks: _onSelectBlock and _onDelete on inspector — app.js wires both after creating inspector"
+
+requirements-completed: [TL-04]
+
+duration: 4min
+completed: 2026-04-06
+---
+
+# Phase 04 Plan 04: Block Inspector Panel Summary
+
+**Compact inspector strip between timeline and transport bar — shows animation label, color swatch, speed/direction/length controls — all param changes go through UpdateParamsCommand for full undo/redo support.**
+
+## Performance
+
+- **Duration:** ~4 min
+- **Started:** 2026-04-06T23:51:12Z
+- **Completed:** 2026-04-06T23:55:00Z
+- **Tasks:** 2
+- **Files modified:** 4 (1 created, 3 modified)
+
+## Accomplishments
+
+- `UpdateParamsCommand` added to commands.js with execute/undo storing old/new params shallow copies
+- `BlockInspector` class rendering inspector strip: animation label, color swatch → hidden color input, SPEED number, DIR select, LEN number, remove button
+- Inspector show/hide wired to block selection via `timeline._onSelectBlock` callback in app.js
+- Inspector delete wired via `_onDelete` → `DeleteBlockCommand` through `timeline.history`
+- Block fill on canvas uses `params.color + '1a'` for subtle color accent — color changes visible immediately
+- Undo/redo handlers re-trigger `_onSelectBlock(selectedBlock)` to refresh inspector values after command reversal
+- Docker build: clean (no errors)
+
+## Task Commits
+
+1. **Task 1: UpdateParamsCommand + BlockInspector module** - `e82fc4a` (feat)
+2. **Task 2: Wire inspector into timeline and app.js** - `8e084ca` (feat)
+
+## Files Created/Modified
+
+- `lightsync/frontend/timeline/inspector.js` — BlockInspector class with show/hide/_render/_wireEvents, imports UpdateParamsCommand
+- `lightsync/frontend/timeline/commands.js` — UpdateParamsCommand added with currentShowId-based sync
+- `lightsync/frontend/app.js` — imports BlockInspector + DeleteBlockCommand, wires inspector to timeline
+- `lightsync/frontend/timeline/timeline.js` — block color accent from params.color, undo/redo re-triggers inspector refresh
+
+## Decisions Made
+
+| Decision | Rationale |
+|----------|-----------|
+| UpdateParamsCommand uses `currentShowId` not `this._showId` | The plan's code had `this._showId` which doesn't exist — commands.js uses module-level `currentShowId`, same as all other commands |
+| Color change on `change` not `input` | Native color pickers fire `input` continuously during drag; committing on `change` prevents hundreds of undo steps for one color change |
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 1 - Bug] Fixed UpdateParamsCommand._showId → currentShowId**
+- **Found during:** Task 1 (UpdateParamsCommand implementation)
+- **Issue:** Plan's code used `this._showId` in syncBlock call, but commands.js uses module-level `currentShowId` — `this._showId` is undefined
+- **Fix:** Used `currentShowId` (module-level variable) matching the exact pattern of PlaceBlockCommand, MoveBlockCommand etc.
+- **Files modified:** `lightsync/frontend/timeline/commands.js`
+- **Committed in:** e82fc4a
+
+---
+
+**Total deviations:** 1 auto-fixed (Rule 1 - Bug)
+**Impact on plan:** Essential fix — `this._showId` would be undefined at runtime, breaking backend sync for all param changes.
+
+## Issues Encountered
+
+None — all other implementation matched the plan exactly.
+
+## Known Stubs
+
+None — inspector is fully wired. All param changes route through UpdateParamsCommand. Color accent on canvas reflects actual block color. Remove button fires DeleteBlockCommand. Undo/redo refreshes inspector.
+
+## Self-Check: PASSED
+
+- `lightsync/frontend/timeline/inspector.js` exists: YES (e82fc4a)
+- `inspector.js` exports `BlockInspector`: YES
+- `commands.js` has `UpdateParamsCommand`: YES (e82fc4a)
+- `app.js` imports `BlockInspector` and `DeleteBlockCommand`: YES (8e084ca)
+- `app.js` wires `_onSelectBlock` and `_onDelete`: YES (8e084ca)
+- `timeline.js` uses `blockColor + '1a'` for fill: YES (8e084ca)
+- `timeline.js` undo/redo re-triggers `_onSelectBlock`: YES (8e084ca)
+- Docker build: SUCCESS (clean)
+
+## Next Phase Readiness
+
+- Timeline editor is feature-complete: block place/move/resize/delete/params all undoable
+- Inspector provides full visual feedback for selected block parameters
+- Phase 04 is complete — all 4 plans done
+- No blockers
+
+---
+*Phase: 04-timeline-editor*
+*Completed: 2026-04-06*