docs(04-02): complete design React JamTrack architecture plan
Phase 4 complete - JamTrack research & design finished in 2 plans (41 min total). Created comprehensive architecture design: - COMPONENT_DESIGN.md: JKSessionJamTrackPlayer with 10 sub-components - REDUX_DESIGN.md: 3 slice extensions, 6 async thunks, 3 WebSocket handlers - IMPLEMENTATION_ROADMAP.md: 9 preliminary plans, risk analysis, testing strategy Key deliverables: - Component architecture follows Phase 3 Backing Track patterns - Redux state extensions for download/sync machine and mixdown selection - Phase 5 roadmap identifies 2 HIGH risks (state machine, race conditions) - Enhanced loadJamTrack fixes existing fqId bug - Testing strategy with 40+ UAT test cases - Complexity estimate: 2.5-3x Phase 3 effort Ready for Phase 5 (JamTrack Implementation) planning. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Nuwan
parent
7d7aa9760d
commit
aed2f97c18
|
|
@ -17,9 +17,9 @@ None
|
|||
Decimal phases appear between their surrounding integers in numeric order.
|
||||
|
||||
- [x] **Phase 1: Backing Track Playback Monitoring** - Implement 500ms polling, display duration and current time in MM:SS format
|
||||
- [ ] **Phase 2: Backing Track Seek Controls** - Functional seek bar with drag-to-position capability
|
||||
- [ ] **Phase 3: Backing Track Finalization** - Error handling, edge cases, performance optimization
|
||||
- [ ] **Phase 4: JamTrack Research & Design** - Explore legacy jQuery/CoffeeScript implementation, design React patterns
|
||||
- [x] **Phase 2: Backing Track Seek Controls** - Functional seek bar with drag-to-position capability
|
||||
- [x] **Phase 3: Backing Track Finalization** - Error handling, edge cases, performance optimization
|
||||
- [x] **Phase 4: JamTrack Research & Design** - Explore legacy jQuery/CoffeeScript implementation, design React patterns
|
||||
- [ ] **Phase 5: JamTrack Implementation** - Build JamTrack player with mixdown selection and controls
|
||||
- [ ] **Phase 6: Metronome Research & Design** - Explore legacy implementation, design React patterns
|
||||
- [ ] **Phase 7: Metronome Implementation** - Build metronome with tempo/sound/cricket configuration
|
||||
|
|
@ -64,7 +64,7 @@ Plans:
|
|||
|
||||
Plans:
|
||||
- [x] 04-01: Document legacy implementation, jamClient API, and React patterns
|
||||
- [ ] 04-02: Design React architecture, Redux state, and Phase 5 roadmap
|
||||
- [x] 04-02: Design React architecture, Redux state, and Phase 5 roadmap
|
||||
|
||||
### Phase 5: JamTrack Implementation
|
||||
**Goal**: Build JamTrack player with file opening, mixdown selection, and playback controls
|
||||
|
|
@ -104,7 +104,7 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6 → 7
|
|||
| 1. Backing Track Playback Monitoring | 1/1 | Complete | 2026-01-13 |
|
||||
| 2. Backing Track Seek Controls | 1/1 | Complete | 2026-01-14 |
|
||||
| 3. Backing Track Finalization | 3/3 | Complete | 2026-01-14 |
|
||||
| 4. JamTrack Research & Design | 1/2 | In progress | - |
|
||||
| 4. JamTrack Research & Design | 2/2 | Complete | 2026-01-14 |
|
||||
| 5. JamTrack Implementation | 0/TBD | Not started | - |
|
||||
| 6. Metronome Research & Design | 0/TBD | Not started | - |
|
||||
| 7. Metronome Implementation | 0/TBD | Not started | - |
|
||||
|
|
|
|||
|
|
@ -9,17 +9,17 @@ See: .planning/PROJECT.md (updated 2026-01-13)
|
|||
|
||||
## Current Position
|
||||
|
||||
Phase: 4 of 7 (JamTrack Research & Design) - IN PROGRESS
|
||||
Plan: 1 of 2 in current phase
|
||||
Status: In progress
|
||||
Last activity: 2026-01-14 — Completed 04-01-PLAN.md
|
||||
Phase: 4 of 7 (JamTrack Research & Design) - COMPLETE
|
||||
Plan: 2 of 2 in current phase
|
||||
Status: Complete
|
||||
Last activity: 2026-01-14 — Completed Phase 4 (JamTrack Research & Design)
|
||||
|
||||
Progress: █████████░ 50%
|
||||
Progress: ██████████ 100%
|
||||
|
||||
## Performance Metrics
|
||||
|
||||
**Velocity:**
|
||||
- Total plans completed: 6
|
||||
- Total plans completed: 8
|
||||
- Average duration: TBD
|
||||
- Total execution time: TBD
|
||||
|
||||
|
|
@ -30,11 +30,11 @@ Progress: █████████░ 50%
|
|||
| 1 | 1 | 3 min | 3 min |
|
||||
| 2 | 1 | 120 min | 120 min |
|
||||
| 3 | 3 | TBD | TBD |
|
||||
| 4 | 1 | 21 min | 21 min |
|
||||
| 4 | 2 | 41 min | 20.5 min |
|
||||
|
||||
**Recent Trend:**
|
||||
- Last 5 plans: 120 min, TBD, TBD, TBD, 21 min
|
||||
- Trend: Phase 4 documentation-focused (21 min), Phase 3 complete with UAT
|
||||
- Last 5 plans: TBD, TBD, 21 min, 20 min
|
||||
- Trend: Phase 4 complete (documentation-focused, 41 min total), ready for Phase 5
|
||||
|
||||
## Accumulated Context
|
||||
|
||||
|
|
@ -77,6 +77,17 @@ Recent decisions affecting current work:
|
|||
- Callback pattern: jamClient download callbacks passed as string names, not function references
|
||||
- loadJamTrack thunk bug identified: Uses jamTrack.id instead of correct fqId format
|
||||
|
||||
**From Phase 4 Plan 2 (04-jamtrack-research-design):**
|
||||
- JKSessionJamTrackPlayer follows Backing Track patterns with extensions for download/sync and mixdown selection
|
||||
- Redux state split: jamTrackState (playback), downloadState (sync machine), availableMixdowns (mixdown cache)
|
||||
- 6 async thunks needed: loadJamTrack (enhanced), downloadJamTrack, checkJamTrackSync, loadJMEP, seekJamTrack, closeJamTrack
|
||||
- Enhanced loadJamTrack fixes existing bug: uses fqId format instead of jamTrack.id
|
||||
- 6-state download/sync machine: idle → checking → downloading → keying → synchronized → error
|
||||
- Phase 5 preliminary scope: 9 plans, 2.5-3x complexity of Phase 3 Backing Track
|
||||
- 5 critical decisions deferred to Phase 5: popup mode support, stem control integration, error recovery strategy, download cancellation, UAT deferral threshold
|
||||
- HIGH risks identified: Download/sync state machine complexity, native client race conditions
|
||||
- Component architecture: 10 sub-components (PlaybackControls, SeekSlider, TimeDisplay, MixdownPicker, DownloadProgress, ErrorDisplay, SyncStatus, VolumeControl, LoadingSpinner, EmptyState)
|
||||
|
||||
### Deferred Issues
|
||||
|
||||
**From Phase 3 Plan 3 UAT:**
|
||||
|
|
@ -103,7 +114,7 @@ None yet.
|
|||
## Session Continuity
|
||||
|
||||
Last session: 2026-01-14
|
||||
Stopped at: Completed Phase 4 Plan 1 (Document Legacy Implementation)
|
||||
Stopped at: Completed Phase 4 Plan 2 (Design React Architecture)
|
||||
Resume file: None
|
||||
|
||||
**Next:** Phase 4 Plan 2 (Design React Architecture) - Ready for execution
|
||||
**Next:** Phase 5 (JamTrack Implementation) - Ready for planning with `/gsd:plan-phase 5`
|
||||
|
|
|
|||
|
|
@ -0,0 +1,400 @@
|
|||
---
|
||||
phase: 04-jamtrack-research-design
|
||||
plan: 02
|
||||
subsystem: documentation
|
||||
tags: [jamtrack, component-design, redux-architecture, implementation-planning]
|
||||
|
||||
# Dependency graph
|
||||
requires:
|
||||
- phase: 04-jamtrack-research-design
|
||||
plan: 01
|
||||
provides: Legacy patterns, jamClient API reference, React pattern analysis
|
||||
provides:
|
||||
- COMPONENT_DESIGN.md - JKSessionJamTrackPlayer component architecture and sub-components
|
||||
- REDUX_DESIGN.md - Redux state extensions and async thunks for JamTrack
|
||||
- IMPLEMENTATION_ROADMAP.md - Phase 5 roadmap with 9 plans, risk analysis, testing strategy
|
||||
affects: [05-jamtrack-implementation]
|
||||
|
||||
# Tech tracking
|
||||
tech-stack:
|
||||
added: []
|
||||
patterns:
|
||||
- "Component architecture: JKSessionJamTrackPlayer with 10 sub-components"
|
||||
- "Redux extensions: 3 slices (media, activeSession, sessionUI) with 6 async thunks"
|
||||
- "6-state download/sync machine: idle → checking → downloading → keying → synchronized → error"
|
||||
- "WebSocket integration: 3 handlers (MIXER_CHANGES extended, JAM_TRACK_CHANGES, MIXDOWN_CHANGES)"
|
||||
- "Props vs Redux decision matrix for state ownership"
|
||||
|
||||
key-files:
|
||||
created:
|
||||
- .planning/phases/04-jamtrack-research-design/COMPONENT_DESIGN.md
|
||||
- .planning/phases/04-jamtrack-research-design/REDUX_DESIGN.md
|
||||
- .planning/phases/04-jamtrack-research-design/IMPLEMENTATION_ROADMAP.md
|
||||
modified: []
|
||||
|
||||
key-decisions:
|
||||
- "JKSessionJamTrackPlayer follows Backing Track patterns with extensions for download/sync and mixdown selection"
|
||||
- "Redux state split: jamTrackState (playback), downloadState (sync machine), availableMixdowns (mixdown cache)"
|
||||
- "6 async thunks needed: loadJamTrack (enhanced), downloadJamTrack, checkJamTrackSync, loadJMEP, seekJamTrack, closeJamTrack"
|
||||
- "Enhanced loadJamTrack fixes existing bug: uses fqId format instead of jamTrack.id"
|
||||
- "Phase 5 preliminary scope: 9 plans, 2.5-3x complexity of Phase 3 Backing Track"
|
||||
- "5 critical decisions deferred to Phase 5: popup mode support, stem control integration, error recovery strategy, download cancellation, UAT deferral threshold"
|
||||
|
||||
patterns-established:
|
||||
- "Design-before-implementation: comprehensive architecture docs before Phase 5 execution"
|
||||
- "Risk-driven planning: identify HIGH/MEDIUM/LOW risks with mitigation strategies"
|
||||
- "Complexity estimation: compare to baseline (Phase 3) for realistic scoping"
|
||||
- "Testing strategy as planning artifact: UAT checklist, unit tests, integration tests defined upfront"
|
||||
|
||||
issues-created: []
|
||||
|
||||
# Metrics
|
||||
duration: 20min
|
||||
completed: 2026-01-14
|
||||
---
|
||||
|
||||
# Phase 4 Plan 2: Design React JamTrack Architecture Summary
|
||||
|
||||
**Comprehensive component and Redux architecture design with Phase 5 implementation roadmap**
|
||||
|
||||
## Performance
|
||||
|
||||
- **Duration:** 20 min
|
||||
- **Started:** 2026-01-14T16:47:35Z
|
||||
- **Completed:** 2026-01-14T17:07:56Z
|
||||
- **Tasks:** 3
|
||||
- **Files created:** 3
|
||||
|
||||
## Accomplishments
|
||||
|
||||
- **COMPONENT_DESIGN.md** (691 lines): Designed JKSessionJamTrackPlayer with 10 sub-components (PlaybackControls, SeekSlider, TimeDisplay, MixdownPicker, DownloadProgress, ErrorDisplay, SyncStatus, VolumeControl, LoadingSpinner, EmptyState), component lifecycle patterns, initialization/cleanup, Props vs Redux decision matrix, and comparison to Backing Track player
|
||||
- **REDUX_DESIGN.md** (1014 lines): Designed Redux state extensions across 3 slices (mediaSlice, activeSessionSlice, sessionUISlice), 6 async thunks, 3 WebSocket handlers, 6-state download/sync machine, comprehensive selectors, and fixes existing loadJamTrack bug
|
||||
- **IMPLEMENTATION_ROADMAP.md** (1030 lines): Created Phase 5 roadmap with 9 preliminary plans, dependency graph, risk analysis (2 HIGH, 4 MEDIUM, 2 LOW risks), 5 critical decisions, success metrics, testing strategy with 40+ UAT test cases, and comparison to Phase 3 effort (2.5-3x complexity)
|
||||
|
||||
## Task Commits
|
||||
|
||||
Each task was committed atomically:
|
||||
|
||||
1. **Task 1: Create COMPONENT_DESIGN.md** - `d25bd6262` (docs)
|
||||
2. **Task 2: Create REDUX_DESIGN.md** - `2e5e30f8b` (docs)
|
||||
3. **Task 3: Create IMPLEMENTATION_ROADMAP.md** - `7d7aa9760` (docs)
|
||||
|
||||
**Plan metadata:** (pending - this commit)
|
||||
|
||||
## Files Created/Modified
|
||||
|
||||
**Created:**
|
||||
- `.planning/phases/04-jamtrack-research-design/COMPONENT_DESIGN.md` - JKSessionJamTrackPlayer architecture
|
||||
- `.planning/phases/04-jamtrack-research-design/REDUX_DESIGN.md` - Redux state structure and thunks
|
||||
- `.planning/phases/04-jamtrack-research-design/IMPLEMENTATION_ROADMAP.md` - Phase 5 roadmap and risk analysis
|
||||
|
||||
**Modified:** None
|
||||
|
||||
## Decisions Made
|
||||
|
||||
### Component Architecture
|
||||
|
||||
**JKSessionJamTrackPlayer Structure:**
|
||||
- **Props interface**: 11 props including isOpen, jamTrack, jamClient, session, currentUser, initialMixdownId, autoPlay
|
||||
- **Local state**: UI-specific (isPlaying, isPaused, selectedMixdownId, error, isLoadingSync, isOperating)
|
||||
- **Redux state**: Shared data (jamTrackState, downloadState, availableMixdowns)
|
||||
- **10 sub-components**: Modular design for maintainability and reusability
|
||||
|
||||
**Initialization pattern:**
|
||||
1. Build fqId from jamTrack.id and sample rate
|
||||
2. Check sync state via `checkJamTrackSync` thunk
|
||||
3. If not synchronized → trigger download flow
|
||||
4. If synchronized → load JMEP (if exists) → play
|
||||
|
||||
**Cleanup pattern:**
|
||||
- Stop playback on unmount via `closeJamTrack` thunk
|
||||
- Clear local state
|
||||
- Remove event listeners
|
||||
- Prevents stale state bugs
|
||||
|
||||
**Props vs Redux Decision Matrix:**
|
||||
- jamClient → Prop (non-serializable)
|
||||
- Session data → Prop (passed from parent)
|
||||
- Playback state → Redux (shared across components)
|
||||
- Download state → Redux (shared, updated via WebSocket)
|
||||
- UI preferences → Redux (persisted across sessions)
|
||||
|
||||
---
|
||||
|
||||
### Redux State Structure
|
||||
|
||||
**mediaSlice Extensions:**
|
||||
|
||||
```javascript
|
||||
jamTrackState: {
|
||||
isPlaying: boolean,
|
||||
isPaused: boolean,
|
||||
currentPositionMs: number,
|
||||
durationMs: number,
|
||||
selectedMixdownId: number | null,
|
||||
playbackMode: 'master' | 'custom-mix' | 'stem',
|
||||
lastUpdate: timestamp
|
||||
}
|
||||
|
||||
downloadState: {
|
||||
jamTrackId: number | null,
|
||||
mixdownId: number | null,
|
||||
fqId: string | null,
|
||||
state: 'idle' | 'checking' | 'downloading' | 'keying' | 'synchronized' | 'error',
|
||||
progress: number,
|
||||
currentStep: number,
|
||||
totalSteps: number,
|
||||
error: {...} | null
|
||||
}
|
||||
```
|
||||
|
||||
**6-State Download/Sync Machine:**
|
||||
- `idle` → No download in progress
|
||||
- `checking` → Checking sync state via `JamTrackGetTrackDetail(fqId)`
|
||||
- `downloading` → Download in progress (0-100% progress)
|
||||
- `keying` → Requesting decryption keys via `JamTrackKeysRequest()`
|
||||
- `synchronized` → Ready to play
|
||||
- `error` → Download failed (with error details)
|
||||
|
||||
**activeSessionSlice Extensions:**
|
||||
- `availableMixdowns`: Array of mixdown objects (master, custom mixes, stems)
|
||||
- `activeMixdown`: Currently selected mixdown object
|
||||
- `mixdownCache`: Map of mixdown packages by ID (metadata for download)
|
||||
|
||||
**sessionUISlice Extensions:**
|
||||
- `openJamTrack`: Currently open JamTrack ID (or null)
|
||||
- `jamTrackUI`: User preferences (lastUsedMixdown, volume)
|
||||
|
||||
---
|
||||
|
||||
### Async Thunks
|
||||
|
||||
**1. loadJamTrack (enhanced)** - FIXES EXISTING BUG
|
||||
- **Bug fixed**: Current implementation uses `jamTrack.id` instead of fqId format
|
||||
- **Fix**: Build fqId from `jamTrack.id` and sample rate (`{jamTrackId}-{sampleRate}`)
|
||||
- **Flow**: Check sync → download if needed → load JMEP → play
|
||||
|
||||
**2. downloadJamTrack**
|
||||
- Get package ID via `pickMyPackage()` logic (filters by ogg/jkz/sample_rate)
|
||||
- Set up global download callbacks (string names: `'jamTrackDownloadProgress'`, `'jamTrackDownloadSuccess'`, `'jamTrackDownloadFail'`)
|
||||
- Call `JamTrackDownload()` with callbacks
|
||||
- Poll progress via WebSocket `MIXDOWN_CHANGES`
|
||||
- Request keys via `JamTrackKeysRequest()` when complete
|
||||
|
||||
**3. checkJamTrackSync**
|
||||
- Call `JamTrackGetTrackDetail(fqId)`
|
||||
- Return sync state, key state, package info
|
||||
- Used during initialization
|
||||
|
||||
**4. loadJMEP**
|
||||
- Load JMEP (Jam Enhancement Package) for tempo/pitch modifications
|
||||
- Call `JamTrackLoadJmep(fqId, jmepData)` before playback
|
||||
- Only if `jamTrack.jmep` exists
|
||||
|
||||
**5. seekJamTrack**
|
||||
- Call `JamTrackSeekMs(fqId, positionMs)`
|
||||
- Apply UAT-003 fix pattern (pending seek while paused)
|
||||
|
||||
**6. closeJamTrack**
|
||||
- Stop playback if playing
|
||||
- Clear jamTrackState and downloadState
|
||||
- Cleanup to prevent stale state
|
||||
|
||||
---
|
||||
|
||||
### WebSocket Handlers
|
||||
|
||||
**1. MIXER_CHANGES (extended)**
|
||||
- Existing handler for Backing Track mixers
|
||||
- Extend to handle JamTrack mixdown changes
|
||||
- Update `availableMixdowns` when mixdown list changes
|
||||
|
||||
**2. JAM_TRACK_CHANGES (new)**
|
||||
- Handle playback state updates from native client
|
||||
- Update `isPlaying`, `isPaused`, `currentPositionMs` in Redux
|
||||
- Reduces polling frequency (only need duration)
|
||||
|
||||
**3. MIXDOWN_CHANGES (new)**
|
||||
- Handle download/packaging progress during server-side mixdown creation
|
||||
- Update `downloadState.currentStep` and `totalSteps`
|
||||
- Used during download flow to show "Packaging... (step 2 of 5)"
|
||||
|
||||
---
|
||||
|
||||
### Phase 5 Roadmap Structure
|
||||
|
||||
**9 Preliminary Plans (to be refined during Phase 5 planning):**
|
||||
|
||||
1. **Redux Infrastructure & Bug Fixes** - Foundation, fix loadJamTrack bug
|
||||
2. **Async Thunks & WebSocket Handlers** - Core async operations
|
||||
3. **Player Core Structure** - Component skeleton, initialization, cleanup
|
||||
4. **Playback Controls** - Play/pause/stop, polling, seek slider
|
||||
5. **Mixdown Selection** - Mixdown picker UI, selection logic
|
||||
6. **Download/Sync UI** - Progress bar, sync state machine UI
|
||||
7. **Modal Updates** - Update JKSessionJamTrackModal for new props
|
||||
8. **Error Handling & Edge Cases** - Comprehensive error handling
|
||||
9. **Performance Optimization & Final UAT** - Performance tuning, UAT
|
||||
|
||||
**Dependency Graph:**
|
||||
- Plans 1-2 are foundational (Redux + thunks)
|
||||
- Plans 3-6 are sequential component development
|
||||
- Plan 7 can run in parallel after Plan 3
|
||||
- Plans 8-9 must be last
|
||||
|
||||
**Estimated Effort:**
|
||||
- JamTrack is 2.5-3x more complex than Backing Track (Phase 3)
|
||||
- Phase 3 took 3 plans → Phase 5 should take ~7-9 plans
|
||||
- Preliminary breakdown shows 9 plans → reasonable estimate
|
||||
- May consolidate to 7-8 plans during actual planning based on config depth
|
||||
|
||||
---
|
||||
|
||||
### Risk Analysis
|
||||
|
||||
**HIGH Risks:**
|
||||
|
||||
**Risk 1: Download/Sync State Machine Complexity**
|
||||
- 6-state machine vs Backing Track's simple load
|
||||
- Legacy CoffeeScript has race conditions
|
||||
- **Mitigation**: Reference legacy closely, add diagnostic logging, use Redux DevTools
|
||||
- **Contingency**: Fall back to polling if WebSocket unreliable
|
||||
|
||||
**Risk 2: Native Client Race Conditions**
|
||||
- Phase 3 encountered multiple race conditions (Issues 1-3)
|
||||
- JamTrack has MORE async complexity → expect similar or worse
|
||||
- **Mitigation**: Apply Phase 3 lessons (verification delays, pending state pattern, state machine guards)
|
||||
- **Contingency**: Defer complex issues to future work (like Phase 3)
|
||||
|
||||
**MEDIUM Risks:**
|
||||
|
||||
**Risk 3: fqId Format Bugs Throughout Codebase**
|
||||
- Identified bug in loadJamTrack thunk
|
||||
- May exist in other places (modal, stems, other thunks)
|
||||
- **Mitigation**: Audit all JamTrack code in Plan 1, create helper function `buildFqId()`
|
||||
- **Contingency**: Add Plan 1.5 for comprehensive fqId audit
|
||||
|
||||
**Risk 4: Mixdown Selection Logic Complexity**
|
||||
- `pickMyPackage()` has 50+ lines of filtering logic
|
||||
- Must replicate accurately or downloads fail
|
||||
- **Mitigation**: Study legacy implementation, unit tests, test with various JamTracks
|
||||
- **Contingency**: Simplify initial implementation (master only), add advanced features later
|
||||
|
||||
**Risk 5: JMEP Support**
|
||||
- Unclear if required or optional
|
||||
- Error handling unclear
|
||||
- **Mitigation**: Check if `jamTrack.jmep` exists before loading, test with/without JMEP
|
||||
- **Contingency**: Make optional, log warning if fails
|
||||
|
||||
**Risk 6: WebSocket Handler Integration**
|
||||
- Integration code not well-documented
|
||||
- Must locate handler registration point
|
||||
- **Mitigation**: Reference existing handlers, verify Protocol Buffer format
|
||||
- **Contingency**: Fall back to polling
|
||||
|
||||
---
|
||||
|
||||
### Critical Decisions Deferred to Phase 5
|
||||
|
||||
**Decision 1: Popup Mode Support**
|
||||
- Should JamTrack support popup window mode like Backing Track?
|
||||
- **Recommendation**: Option A - Support both modes, document limitations
|
||||
- **Impact**: Affects Plan 3 and Plan 9 UAT
|
||||
|
||||
**Decision 2: Stem Control Integration**
|
||||
- Embed stem controls in player or keep separate?
|
||||
- **Recommendation**: Option B - Keep separate, communicate via Redux
|
||||
- **Impact**: Affects Plan 5 scope
|
||||
|
||||
**Decision 3: Error Recovery Strategy**
|
||||
- Auto-retry with exponential backoff vs user-initiated retry?
|
||||
- **Recommendation**: Option C - Hybrid (auto-retry transient, user retry fatal)
|
||||
- **Impact**: Affects Plan 8 error handling tasks
|
||||
|
||||
**Decision 4: Download Cancellation**
|
||||
- Should users be able to cancel in-progress downloads?
|
||||
- **Recommendation**: Option A - Implement cancellation
|
||||
- **Impact**: Affects Plan 6 download UI (+1 task)
|
||||
|
||||
**Decision 5: UAT Deferral Threshold**
|
||||
- What severity threshold for deferring UAT issues?
|
||||
- **Recommendation**: Option B - Defer minor only, fix medium+
|
||||
- **Impact**: May need Plan 10 for critical UAT fixes
|
||||
|
||||
---
|
||||
|
||||
### Testing Strategy
|
||||
|
||||
**Unit Testing:**
|
||||
- Redux reducers (all new state updates)
|
||||
- Redux selectors (computed values)
|
||||
- Async thunks (success + error paths)
|
||||
- Helper functions (`buildFqId`, `pickMyPackage`, `formatTime`)
|
||||
|
||||
**Integration Testing:**
|
||||
- Component + Redux (actions trigger updates)
|
||||
- WebSocket + Redux (messages update state)
|
||||
- jamClient + Redux (full user flows)
|
||||
|
||||
**Manual Testing (UAT):**
|
||||
- 40+ test cases across 8 categories:
|
||||
- Initialization (4 cases)
|
||||
- Download/Sync (6 cases)
|
||||
- Playback Controls (7 cases)
|
||||
- Mixdown Selection (5 cases)
|
||||
- Display (5 cases)
|
||||
- Performance (4 cases)
|
||||
- Edge Cases (10 cases)
|
||||
- Cleanup (5 cases)
|
||||
|
||||
**Regression Testing:**
|
||||
- Verify Backing Track still works (no regressions)
|
||||
- Verify JamTrack modal/stems still work
|
||||
|
||||
---
|
||||
|
||||
## Deviations from Plan
|
||||
|
||||
None - plan executed exactly as written.
|
||||
|
||||
## Issues Encountered
|
||||
|
||||
None - all design tasks completed successfully based on Phase 4 Plan 1 documentation.
|
||||
|
||||
## Next Phase Readiness
|
||||
|
||||
**Phase 4 Complete** - Ready to proceed to Phase 5 (JamTrack Implementation)
|
||||
|
||||
**Design artifacts created:**
|
||||
- ✓ Component architecture (JKSessionJamTrackPlayer with 10 sub-components)
|
||||
- ✓ Redux state structure (3 slices extended, 6 thunks, 3 WebSocket handlers)
|
||||
- ✓ Phase 5 roadmap (9 preliminary plans with dependency graph)
|
||||
- ✓ Risk analysis (2 HIGH, 4 MEDIUM, 2 LOW risks with mitigation)
|
||||
- ✓ Testing strategy (unit, integration, UAT with 40+ test cases)
|
||||
- ✓ Success metrics (functional completeness, code quality, UX)
|
||||
|
||||
**Key insights for Phase 5:**
|
||||
1. **Complexity multiplier**: JamTrack is 2.5-3x more complex than Backing Track
|
||||
2. **High-risk areas**: Download/sync state machine, native client race conditions
|
||||
3. **Critical bug fix**: loadJamTrack thunk uses wrong ID format (MUST fix in Plan 1)
|
||||
4. **Reuse patterns**: Apply Phase 3 error handling, loading states, performance optimizations
|
||||
5. **Expect deferrals**: Like Phase 3, expect 2-4 issues deferred to future work
|
||||
|
||||
**Phase 5 execution path:**
|
||||
1. `/clear` to free context window
|
||||
2. `/gsd:plan-phase 5` to create executable PLAN.md files
|
||||
3. Refine 9 preliminary plans based on config depth
|
||||
4. Finalize 5 critical decisions (popup mode, stem controls, etc.)
|
||||
5. Execute plans with atomic commits per task
|
||||
|
||||
**Architectural foundation solid:**
|
||||
- Component design follows established patterns from Phase 3
|
||||
- Redux extensions logical and well-scoped
|
||||
- Risk mitigation strategies clear
|
||||
- Testing strategy comprehensive
|
||||
- Dependencies mapped, critical path identified
|
||||
|
||||
**Ready for implementation.**
|
||||
|
||||
---
|
||||
*Phase: 04-jamtrack-research-design*
|
||||
*Completed: 2026-01-14*
|
||||
Loading…
Reference in New Issue