docs: move completed tasks to archive and update TODO status

- Add recent completions to COMPLETED.md: - 3-Tier Account System & Fairness Algorithm (2025-11-29) - Mobile-first Design Improvements (2025-11-29) - Test Bot for Automated Testing (2025-11-29) - Ratings & Stats System (2025-11-30, 9 E2E tests) - Matching Runs Audit & origin_run_id Tracking (2025-11-30, 30 tests) - Documentation Reorganization (2025-11-30) - Update TODO.md current status (342/342 tests passing - 100%) - Remove "Recently Completed" sections from TODO.md - Update implemented scenarios list
2025-11-30 20:22:07 +01:00
parent 913d685721
commit 964897bdc0
2 changed files with 259 additions and 48 deletions
--- a/docs/archive/COMPLETED.md
+++ b/docs/archive/COMPLETED.md
@@ -938,8 +938,251 @@ Major refactoring of frontend code to extract reusable components and add status

 ---

-**Last Updated:** 2025-11-23 (Recording Matching + Frontend Refactoring completed)
+## ✅ 3-Tier Account System & Fairness Algorithm (COMPLETED 2025-11-29)
+
+**Status:** Completed
+**Time Spent:** ~6 hours
+**Commits:** Multiple commits
+
+### Overview
+Implemented a 3-tier account system (BASIC, SUPPORTER, COMFORT) with fairness algorithm for recording assignment. The system tracks how many times users have recorded others vs been recorded, creating a "karma" system that ensures fair distribution of recording duties.
+
+### Backend Implementation
+- [x] ✅ **AccountTier enum** - BASIC, SUPPORTER, COMFORT
+- [x] ✅ **User model updates**
+  - `accountTier` field (default: BASIC)
+  - `recordingsDone` counter
+  - `recordingsReceived` counter
+- [x] ✅ **EventParticipant model**
+  - `accountTierOverride` field for event-specific tier upgrades (e.g., Comfort Pass)
+- [x] ✅ **Fairness algorithm** in matching service
+  - Debt calculation: `recordingsDone - recordingsReceived`
+  - SUPPORTER tier: -10 fairness penalty (records less often)
+  - COMFORT tier: -50 fairness penalty (rarely records)
+  - Sorting priority: Location > Fairness > Load balancing
+- [x] ✅ **Dual buffer system**
+  - PREP_BUFFER_MINUTES: 30 (time before dancing)
+  - REST_BUFFER_MINUTES: 60 (time after dancing)
+  - No buffer for recording-only participants
+
+### Constants
+- [x] ✅ **ACCOUNT_TIER** - BASIC, SUPPORTER, COMFORT
+- [x] ✅ **FAIRNESS_SUPPORTER_PENALTY** = 10
+- [x] ✅ **FAIRNESS_COMFORT_PENALTY** = 50
+- [x] ✅ **MAX_RECORDINGS_PER_PERSON** = 3
+- [x] ✅ **PREP_BUFFER_MINUTES** = 30
+- [x] ✅ **REST_BUFFER_MINUTES** = 60
+
+### Impact
+- Fair distribution of recording work across all participants
+- Premium tiers incentivize support while reducing recording burden
+- Event organizers can grant temporary tier upgrades via accountTierOverride
+
+---
+
+## ✅ Mobile-first Design Improvements (COMPLETED 2025-11-29)
+
+**Status:** Completed
+**Commits:** 1 commit
+
+### Overview
+Enhanced mobile user experience with page titles, clickable usernames, and country flags.
+
+### Frontend Implementation
+- [x] ✅ **Page titles on mobile** - Show context when no desktop sidebar
+- [x] ✅ **Clickable usernames** - @username links to public profiles
+- [x] ✅ **Country flags** - Display user country flags in event chat
+- [x] ✅ **Responsive layout** - Optimized for small screens
+
+### Git Commits
+1. `feat(frontend): add page titles on mobile, clickable usernames, country flags`
+
+---
+
+## ✅ Test Bot for Automated Testing (COMPLETED 2025-11-29)
+
+**Status:** Completed
+**Commits:** 1 commit
+
+### Overview
+Created test bot for simulating user interactions in automated tests.
+
+### Implementation
+- [x] ✅ **Test bot** in `backend/src/__tests__/helpers/testBot.js`
+- [x] ✅ Automated user creation and cleanup
+- [x] ✅ Event participation simulation
+- [x] ✅ Heat declaration helpers
+
+### Git Commits
+1. `test: add test bot for automated testing`
+
+---
+
+## ✅ Ratings & Stats System (COMPLETED 2025-11-30)
+
+**Status:** Completed
+**Time Spent:** ~4 hours
+**Commits:** 2 commits
+**Tests:** 9 E2E tests passing
+
+### Overview
+Implemented atomic stats updates for recording fairness tracking. When users rate auto matches, the system updates recordingsDone/recordingsReceived stats atomically with race condition prevention. Manual matches don't affect stats.
+
+### Backend Implementation
+- [x] ✅ **Stats application logic** in ratings controller
+  - `statsApplied` flag in Rating model prevents double-counting
+  - Atomic check-and-set using Prisma `updateMany` with WHERE conditions
+  - Source filtering: only 'auto' matches update stats
+  - Manual matches excluded from fairness calculations
+- [x] ✅ **Race condition prevention**
+  - Transaction-like behavior with atomic updates
+  - Check `statsApplied` before applying stats
+  - Single database query ensures no race conditions
+- [x] ✅ **Idempotency**
+  - Double-rating prevention at database level
+  - Unique constraint: (match_id, rater_id, rated_id)
+  - Stats update exactly once per match completion
+
+### Test Coverage
+- [x] ✅ **E2E test suite** `backend/src/__tests__/ratings-stats-flow.test.js` (9 tests)
+  - TC1: Double-rating completion flow
+  - TC2: recordingsDone increments for recorder
+  - TC3: recordingsReceived increments for dancer
+  - TC4: Stats idempotency (no double-counting)
+  - TC5: statsApplied flag set after update
+  - TC6: Manual matches don't update stats
+  - TC7: Auto matches do update stats
+  - TC8: Race condition simulation
+  - TC9: Complete E2E flow verification
+
+### Impact
+- Fair karma tracking ensures balanced recording assignments
+- Race-proof implementation handles concurrent ratings
+- Source filtering prevents manual matches from affecting fairness
+- Frontend UI already existed in `RatePartnerPage.jsx`
+
+### Git Commits
+1. `feat(ratings): add atomic stats updates with race condition prevention`
+2. `test(ratings): add comprehensive E2E test for ratings & stats flow`
+
+---
+
+## ✅ Matching Runs Audit & origin_run_id Tracking (COMPLETED 2025-11-30)
+
+**Status:** Completed
+**Time Spent:** ~6 hours
+**Commits:** 3 commits
+**Tests:** 6 comprehensive tests + 19 matching algorithm tests + 5 incremental matching tests
+
+### Overview
+Implemented complete audit trail for matching runs with origin_run_id tracking. Every suggestion now tracks which matching run created it, enabling per-run statistics, filtering, and audit capabilities.
+
+### Backend Implementation
+- [x] ✅ **MatchingRun model** - Audit trail table
+  - `id`, `eventId`, `trigger` (manual/scheduler), `status` (running/success/failed)
+  - `startedAt`, `endedAt`, `matchedCount`, `notFoundCount`, `errorMessage`
+- [x] ✅ **origin_run_id tracking** in RecordingSuggestion
+  - Every suggestion tagged with its creating run
+  - Preserved across incremental matching for accepted/completed suggestions
+  - PENDING suggestions replaced with new run ID
+- [x] ✅ **Manual matching endpoint fix** `POST /api/events/:slug/run-matching`
+  - Now creates MatchingRun records (was missing)
+  - Proper error handling with failed status
+  - Returns runId in response
+- [x] ✅ **Admin endpoints** `backend/src/routes/admin.js`
+  - `GET /api/admin/events/:slug/matching-runs` - List all runs for event
+  - `GET /api/admin/events/:slug/matching-runs/:runId/suggestions` - Get suggestions per run
+  - Filter parameters: `onlyAssigned`, `includeNotFound`
+- [x] ✅ **Incremental matching behavior**
+  - PENDING suggestions: Deleted and replaced with new run ID
+  - ACCEPTED suggestions: Preserved, keep original origin_run_id
+  - COMPLETED suggestions: Preserved, keep original origin_run_id
+- [x] ✅ **Scheduler integration**
+  - Trigger type: 'scheduler' vs 'manual'
+  - Automated matching creates audit records
+
+### Test Coverage
+- [x] ✅ **Matching runs audit** `backend/src/__tests__/matching-runs-audit.test.js` (6 tests)
+  - TC1: origin_run_id assigned correctly
+  - TC2: Sequential runs create separate IDs
+  - TC3: Accepted suggestions preserve origin_run_id
+  - TC4: Filter parameters work (onlyAssigned, includeNotFound)
+  - TC5: Manual vs scheduler trigger differentiation
+  - TC6: Failed runs recorded in audit trail
+- [x] ✅ **Matching algorithm** `backend/src/__tests__/matching-algorithm.test.js` (19 tests)
+  - Phase 1: Fundamentals (TC1-3)
+  - Phase 2: Collision Detection (TC4-9)
+  - Phase 3: Limits & Workload (TC10-11)
+  - Phase 4: Fairness & Tiers (TC12-16)
+  - Phase 5: Edge Cases (TC17-19)
+- [x] ✅ **Incremental matching** `backend/src/__tests__/matching-incremental.test.js` (5 tests)
+- [x] ✅ **Recording stats integration** `backend/src/__tests__/recording-stats-integration.test.js` (6 tests)
+
+### Documentation
+- [x] ✅ **Comprehensive test guide** `docs/TESTING_MATCHING_RATINGS.md`
+  - Overview of all 45 matching/ratings tests
+  - Test scenarios and expected outcomes
+  - Edge cases covered
+  - Running instructions
+
+### Impact
+- Complete audit trail for matching operations
+- Per-run statistics and filtering
+- Debugging capability: trace which run created specific suggestions
+- Admin visibility into matching system performance
+- Foundation for future analytics and reporting
+
+### Git Commits
+1. `feat(matching): implement origin_run_id tracking and audit tests`
+2. `fix(tests): correct socket test to use nested user.username field`
+3. `test(matching): add comprehensive integration tests for matching algorithm`
+
+---
+
+## ✅ Documentation Reorganization (COMPLETED 2025-11-30)
+
+**Status:** Completed
+**Commits:** 2 commits
+
+### Overview
+Streamlined documentation structure, removed duplicates, archived outdated files.
+
+### Changes
+- [x] ✅ **README.md** - Streamlined from 645 to 365 lines (-43%)
+  - Removed duplication with other docs
+  - Focus on quick start, features, commands
+  - Links to detailed documentation
+- [x] ✅ **SESSION_CONTEXT.md** - Updated with current status
+  - 342/342 tests (100% passing)
+  - Recent work: matching runs audit, ratings & stats
+  - Ready for context restoration
+- [x] ✅ **Archived outdated docs**
+  - `CONTEXT.md` → `archive/` (duplicated in README)
+  - `QUICKSTART.md` → `archive/` (mentions mock auth, outdated)
+  - `QUICK_TEST.md` → `archive/` (outdated)
+- [x] ✅ **TESTING_MATCHING_RATINGS.md** - New comprehensive test guide
+  - 45 tests across 5 suites
+  - Detailed test scenarios
+  - Edge cases and running instructions
+
+### Active Documentation
+- `README.md` - Main project overview (365 lines)
+- `docs/SESSION_CONTEXT.md` - Quick context restoration (224 lines)
+- `docs/TODO.md` - Active tasks & roadmap
+- `docs/ARCHITECTURE.md` - Technical details
+- `docs/DEPLOYMENT.md` - Deployment guide
+- `docs/MONITORING.md` - Operations guide
+- `docs/TESTING_MATCHING_RATINGS.md` - Test documentation
+- `docs/WEBRTC_TESTING_GUIDE.md` - WebRTC testing
+
+### Git Commits
+1. `docs: update documentation with matching runs audit and complete test coverage`
+2. `docs: streamline README and update SESSION_CONTEXT, archive outdated docs`
+
+---
+
+**Last Updated:** 2025-11-30 (Matching runs audit, ratings & stats system, documentation reorganization completed)
 **Note:** This file is an archive of completed phases. For current status, see SESSION_CONTEXT.md or TODO.md

 **MVP Status:** ✅ 100% Complete - All core features implemented, tested, and production-ready
-**Test Status:** 286/286 backend tests passing (73% coverage)
+**Test Status:** 342/342 backend tests passing (100% ✅, 72.5% coverage)