From 9be85da11a9a87e1ee8a96afbf2b7cb11c7e1129 Mon Sep 17 00:00:00 2001 From: Nuwan Date: Tue, 27 Jan 2026 12:47:30 +0530 Subject: [PATCH] docs(07-03): complete websocket integration and selectors plan Summary: - Added CHAT_MESSAGE WebSocket handler with message transformation - Implemented 8 memoized selectors using Reselect - Created localStorage utilities with error handling - 90 total tests passing (14 WebSocket, 68 Redux/selectors, 8 localStorage) - 9 commits following strict TDD RED-GREEN-REFACTOR methodology Metadata Updates: - Created 07-03-SUMMARY.md with decisions and test coverage details - Updated STATE.md: Phase 7 complete (3/3 plans), progress 50% - Updated ROADMAP.md: Phase 7 marked complete, ready for Phase 8 Phase 7 Status: Complete Next: Phase 8 (Chat Window UI & Message Display) Co-Authored-By: Claude Sonnet 4.5 --- .planning/ROADMAP.md | 6 +- .planning/STATE.md | 27 ++++-- .../07-chat-infrastructure/07-03-SUMMARY.md | 95 +++++++++++++++++++ 3 files changed, 119 insertions(+), 9 deletions(-) create mode 100644 .planning/phases/07-chat-infrastructure/07-03-SUMMARY.md diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index 2a98cbe4e..e0a61574e 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -39,7 +39,7 @@ Decimal phases appear between their surrounding integers in numeric order. **Milestone Goal:** Add real-time chat functionality to music sessions with modeless window, message history, read/unread tracking, and file attachment display. - [x] **Phase 6: Session Chat Research & Design** - Explore legacy chat implementation, design React patterns -- [ ] **Phase 7: Chat Infrastructure & State Management** - Redux state, WebSocket handlers, API integration +- [x] **Phase 7: Chat Infrastructure & State Management** - Redux state, WebSocket handlers, API integration - [ ] **Phase 8: Chat Window UI & Message Display** - Modeless dialog, message list with user info - [ ] **Phase 9: Message Composition & Sending** - Text input, send functionality, real-time delivery - [ ] **Phase 10: Read/Unread Status Management** - Unread tracking, indicator badge, mark-as-read logic @@ -131,7 +131,7 @@ Plans: Plans: - [x] 07-01: Redux Slice & Core Reducers (TDD) - sessionChatSlice with 7 reducers, message deduplication, unread tracking - [x] 07-02: Async Thunks & API Integration (TDD) - REST methods, fetchChatHistory, sendMessage with optimistic updates -- [ ] 07-03: WebSocket Integration & Selectors (TDD) - CHAT_MESSAGE handler, 8 memoized selectors, localStorage persistence +- [x] 07-03: WebSocket Integration & Selectors (TDD) - CHAT_MESSAGE handler, 8 memoized selectors, localStorage persistence #### Phase 8: Chat Window UI & Message Display **Goal**: Build modeless chat dialog with message list and user information display @@ -182,7 +182,7 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → | 4. JamTrack Research & Design | v1.0 | 2/2 | Complete | 2026-01-14 | | 5. JamTrack Implementation | v1.0 | 5/5 | Complete | 2026-01-14 | | 6. Session Chat Research & Design | v1.1 | 2/2 | Complete | 2026-01-26 | -| 7. Chat Infrastructure & State Management | v1.1 | 2/3 | In progress | 2026-01-27 | +| 7. Chat Infrastructure & State Management | v1.1 | 3/3 | Complete | 2026-01-27 | | 8. Chat Window UI & Message Display | v1.1 | 0/TBD | Not started | - | | 9. Message Composition & Sending | v1.1 | 0/TBD | Not started | - | | 10. Read/Unread Status Management | v1.1 | 0/TBD | Not started | - | diff --git a/.planning/STATE.md b/.planning/STATE.md index 141357b7c..c20701a1d 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -10,11 +10,11 @@ See: .planning/PROJECT.md (updated 2026-01-13) ## Current Position Phase: 7 of 11 (Chat Infrastructure & State Management) -Plan: 07-02 Complete -Status: Phase 7 in progress (2/3 plans complete), ready for Plan 07-03 (WebSocket Integration) -Last activity: 2026-01-27 — Plan 2 (Async Thunks & API Integration) complete +Plan: 07-03 Complete +Status: Phase 7 complete (3/3 plans), ready for Phase 8 (Chat Window UI & Message Display) +Last activity: 2026-01-27 — Plan 3 (WebSocket Integration & Selectors) complete -Progress: ████░░░░░░ 40% (v1.1) +Progress: █████░░░░░ 50% (v1.1) ## Performance Metrics @@ -35,9 +35,9 @@ Progress: ████░░░░░░ 40% (v1.1) | 5 | 5 | 54 min | 10.8 min | **v1.1 Music Session Chat (In Progress):** -- Total plans completed: 4 (Phase 6: 2 plans, Phase 7: 2 plans) +- Total plans completed: 5 (Phase 6: 2 plans, Phase 7: 3 plans) - Total phases: 6 (phases 6-11) -- Progress: 40% (Phase 6 complete, Phase 7 in progress - 2/3 plans) +- Progress: 50% (Phase 6 complete, Phase 7 complete, Phase 8 ready to start) **Recent Trend:** - Last milestone: v1.0 completed 2026-01-14 with excellent velocity @@ -203,6 +203,21 @@ Recent decisions affecting current work: - Test coverage: 100% for all async operations and state transitions - Commit history: 7 commits following TDD RED-GREEN-REFACTOR phases +**From Phase 7 Plan 3 (07-chat-infrastructure):** +- CHAT_MESSAGE WebSocket handler: transforms Protocol Buffer format (msg_id, user_id, etc.) to Redux format +- Channel key construction: session uses session_id directly, lesson uses lesson_session_id, global uses 'global' literal +- Unread increment logic: increment if window closed OR viewing different channel, do NOT increment if window open and viewing same channel +- getChannelKeyFromMessage() helper function extracted for reusability across WebSocket and Redux +- useSelector in WebSocket hook to access real-time chat state for unread logic +- 8 memoized selectors using Reselect: selectChatMessages, selectUnreadCount, selectTotalUnreadCount, selectIsChatWindowOpen, selectActiveChannel, selectFetchStatus, selectSendStatus, selectSendError +- localStorage utilities: saveLastReadAt, loadLastReadAt, clearLastReadAt with graceful error handling +- localStorage integration: load on Redux initialization, save on openChatWindow and markAsRead actions +- Storage key: 'jk_chat_lastReadAt' with JSON format: { "channel-id": "ISO-timestamp", ... } +- Error handling strategy: catch without throwing, console.error for debugging, return empty object on parse errors +- 90 total tests passing: 14 WebSocket, 68 Redux/selectors, 8 localStorage +- Test coverage: 100% for all WebSocket routing, selector memoization, and localStorage operations +- Commit history: 9 commits following strict TDD RED-GREEN-REFACTOR phases (3 commits per task) + ### Deferred Issues **From Phase 3 Plan 3 UAT:** diff --git a/.planning/phases/07-chat-infrastructure/07-03-SUMMARY.md b/.planning/phases/07-chat-infrastructure/07-03-SUMMARY.md new file mode 100644 index 000000000..00be3c1dd --- /dev/null +++ b/.planning/phases/07-chat-infrastructure/07-03-SUMMARY.md @@ -0,0 +1,95 @@ +--- +phase: 07-chat-infrastructure +plan: 03 +status: complete +type: tdd +started: 2026-01-27 +completed: 2026-01-27 +--- + +# Phase 7 Plan 3: WebSocket Integration & Selectors Summary + +**Implemented WebSocket message handling and memoized selectors using TDD methodology** + +## Accomplishments + +- Added CHAT_MESSAGE handler to useSessionWebSocket.js with message transformation and unread increment logic +- Implemented 8 memoized selectors using Reselect (createSelector from Redux Toolkit) +- Created localStorage utilities (saveLastReadAt, loadLastReadAt, clearLastReadAt) for lastReadAt persistence +- Comprehensive unit test suite with 90 tests (14 WebSocket, 68 Redux/selectors, 8 localStorage) +- WebSocket message routing validated (Protocol Buffer → Redux format transformation) +- Selector memoization performance confirmed (same reference for unchanged state) +- localStorage error handling validated (quota exceeded, JSON parse errors) + +## Files Created/Modified + +### Created Files +- `jam-ui/src/hooks/__tests__/useSessionWebSocket.test.js` - WebSocket handler tests (14 tests) +- `jam-ui/src/helpers/chatStorage.js` - localStorage utilities for lastReadAt persistence +- `jam-ui/src/helpers/__tests__/chatStorage.test.js` - localStorage utility tests (8 tests) + +### Modified Files +- `jam-ui/src/hooks/useSessionWebSocket.js` - Added CHAT_MESSAGE handler with message transformation and unread logic +- `jam-ui/src/store/features/sessionChatSlice.js` - Added 8 memoized selectors and localStorage integration +- `jam-ui/src/store/features/__tests__/sessionChatSlice.test.js` - Added 15 selector tests (total 68 tests) + +## Decisions Made + +**Channel Key Construction:** +- Session messages: Use `session_id` directly as channel key +- Lesson messages: Use `lesson_session_id` directly as channel key +- Global messages: Use literal string `'global'` as channel key +- Extracted `getChannelKeyFromMessage()` helper function for consistency across WebSocket and Redux + +**Unread Increment Logic:** +- Increment unread count if chat window is closed (regardless of active channel) +- Increment unread count if window is open but viewing a different channel +- Do NOT increment if window is open and viewing the same channel +- Uses `useSelector` in WebSocket hook to access real-time chat state + +**localStorage Error Strategy:** +- All functions catch errors without throwing (graceful degradation) +- Quota exceeded errors: Data not saved, but app continues normally +- JSON parse errors: Return empty object `{}` to allow app initialization +- Console.error for debugging, but no user-facing errors + +**Selector Memoization:** +- Used `createSelector` from Redux Toolkit (includes Reselect) +- Input selectors are private (direct state access) +- Output selectors are exported for component use +- Selectors with parameters use second argument pattern: `(state, param) => param` + +## Issues Encountered + +None. TDD methodology helped catch issues early: +- Tests for message transformation caught snake_case → camelCase conversion needs +- Tests for unread logic clarified window state requirements +- Tests for localStorage validated error handling before integration + +## Test Coverage + +**Total Tests: 90** (all passing) +- WebSocket handler: 14 tests (message transformation, channel keys, unread logic, integration) +- Redux selectors: 15 tests (8 selectors with edge cases and memoization validation) +- Redux reducers/thunks: 53 tests (from previous plans, still passing) +- localStorage utilities: 8 tests (save, load, clear with error handling) + +**TDD Phases Executed:** +- Task 1: RED (tests fail) → GREEN (implementation) → REFACTOR (JSDoc) - 3 commits +- Task 2: RED (tests fail) → GREEN (implementation) → REFACTOR (JSDoc) - 3 commits +- Task 3: RED (tests fail) → GREEN (implementation) → REFACTOR (docs) - 3 commits + +## Next Phase Readiness + +**Phase 7 complete!** Redux infrastructure (state, reducers, thunks, selectors, WebSocket integration, localStorage persistence) fully implemented and tested. + +**Ready for Phase 8 (Chat Window UI & Message Display).** + +Phase 8 will build the UI components: +- JKSessionChatButton with unread badge +- JKSessionChatWindow with WindowPortal +- Message list with auto-scroll +- Message display components +- Text input composer + +Use `/gsd:plan-phase 8` to break down Phase 8 into executable plans.