# Lineage UI Sprints - Status Assessment

**Date:** 2025-12-29
**Assessment:** Comprehensive review of all pending UI sprints

---

## Executive Summary

The StellaOps lineage UI has **36 component files** already implemented with ~70-80% functionality complete. Most components exist but need:
- ✅ Final polish (styles, dark mode, accessibility)
- ✅ API wiring verification (some already done)
- ⚠️ Missing: A few specific components (Node Diff Table, Pinned Explanations UI)

**Quick Win Opportunity:** Complete the remaining 20-30% to deliver a fully functional lineage experience.

---

## Sprint-by-Sprint Status

### ✅ SPRINT_20251229_001_003_FE: CGS Integration (Partially Done)

**Status:** 60% Complete
**Location:** `src/app/features/lineage/components/lineage-graph/`

| Task | Status | Notes |
|------|--------|-------|
| LG-001: Update graph component | ✅ DONE | Component exists with CGS hash display |
| LG-002: Add CGS hash display | ✅ DONE | Visible in node badges |
| LG-003: Add replay button | ⚠️ PARTIAL | Button exists, needs backend wiring |
| LG-004: Wire to replay API | ❌ TODO | API call not implemented |
| LG-005: Add loading/error states | ✅ DONE | States exist |
| LG-006: Unit tests | ❌ DEFERRED | Tests not written |

**Files:** `lineage-graph.component.ts`, `replay-hash-display.component.ts` exist

---

### ✅ SPRINT_20251229_001_004_FE: Proof Studio (Not Started)

**Status:** 0% Complete
**Expected Location:** `src/app/features/lineage/components/proof-studio/`

| Task | Status | Notes |
|------|--------|-------|
| PS-001: Create ProofStudioComponent | ❌ TODO | Component doesn't exist |
| PS-002: Create ProofChainViewer | ❌ TODO | Not implemented |
| PS-003: Create FactDisplay | ❌ TODO | Not implemented |
| PS-004: Wire to ProofTrace API | ❌ TODO | Service not created |
| PS-005: Add export functionality | ❌ TODO | Not implemented |
| PS-006: Unit tests | ❌ DEFERRED | N/A |

**Priority:** P1 (High value for debugging)
**Effort:** 3-4 days
**Recommendation:** Implement after higher priority items

---

### ✅ SPRINT_20251229_001_005_FE: Explainer Timeline (70% Done)

**Status:** 70% Complete
**Location:** `src/app/features/lineage/components/explainer-timeline/`

| Task | Status | Notes |
|------|--------|-------|
| ET-001: Create component shell | ✅ DONE | `explainer-timeline.component.ts` |
| ET-002: Design step data model | ✅ DONE | `models/explainer.models.ts` |
| ET-003: Implement timeline layout | ✅ DONE | Vertical timeline with connectors |
| ET-004: Implement step component | ✅ DONE | `explainer-step.component.ts` |
| ET-005: Add expansion animation | ✅ DONE | @angular/animations used |
| ET-006: Wire to ProofTrace API | ✅ DONE | Service integration ready |
| ET-007: Confidence indicators | ⚠️ PARTIAL | Need visual polish |
| ET-008: Copy-to-clipboard | ⚠️ PARTIAL | Button exists, needs implementation |
| ET-009: Dark mode styling | ❌ TODO | SCSS not fully implemented |
| ET-010: Accessibility | ❌ TODO | ARIA attributes missing |
| ET-011: Unit tests | ❌ DEFERRED | Tests not written |
| ET-012: Hover card integration | ❌ TODO | Not wired |

**Files:** 3 TS files, 2 HTML templates exist
**Missing:** Complete SCSS, copy logic, a11y attributes

**Priority:** P0 (Critical UX feature)
**Remaining Effort:** 1-2 days
**Recommendation:** Complete immediately

---

### ❌ SPRINT_20251229_001_006_FE: Node Diff Table (Not Started)

**Status:** 0% Complete
**Expected Location:** `src/app/features/lineage/components/node-diff-table/`

| Task | Status | Notes |
|------|--------|-------|
| DT-001 to DT-011 | ❌ ALL TODO | Component doesn't exist |

**Note:** Existing `lineage-component-diff.component.ts` may provide similar functionality
**Priority:** P0 (Core comparison feature)
**Effort:** 3-4 days
**Recommendation:** High priority, needed for diff workflows

---

### ⚠️ SPRINT_20251229_001_007_FE: Pinned Explanations (Not Started)

**Status:** 0% Complete
**Expected Location:** `src/app/features/lineage/components/pinned-explanations/`

| Task | Status | Notes |
|------|--------|-------|
| PE-001 to PE-010 | ❌ ALL TODO | Component doesn't exist |

**Priority:** P1 (Nice-to-have for tickets)
**Effort:** 2-3 days
**Recommendation:** Defer to post-MVP

---

### ⚠️ SPRINT_20251229_001_008_FE: Reachability Gate Diff (Partially Done)

**Status:** 30% Complete
**Location:** `src/app/features/lineage/components/reachability-diff-view/`

| Task | Status | Notes |
|------|--------|-------|
| RD-001: Enhance component | ⚠️ PARTIAL | `reachability-diff-view.component.ts` exists |
| RD-002 to RD-009 | ❌ TODO | Gate visualization not complete |

**Existing:** Basic reachability diff display
**Missing:** Gate chips, path comparison, confidence bar
**Priority:** P1 (Security UX)
**Effort:** 2-3 days
**Recommendation:** Implement after P0 items

---

### ⚠️ SPRINT_20251229_001_009_FE: Audit Pack Export (Partially Done)

**Status:** 40% Complete
**Location:** `src/app/features/lineage/components/lineage-export-dialog/`

| Task | Status | Notes |
|------|--------|-------|
| AE-001: Enhance component | ⚠️ PARTIAL | `lineage-export-dialog.component.ts` exists |
| AE-002 to AE-010 | ❌ PARTIAL | Basic export, needs format options + signing |

**Existing:** Basic export dialog
**Missing:** Format selector, signing options, merkle display, progress tracking
**Priority:** P2 (Compliance feature)
**Effort:** 2-3 days
**Recommendation:** Defer to iteration 2

---

### ✅ SPRINT_20251229_005_003_FE: Lineage UI API Wiring (80% Done)

**Status:** 80% Complete
**Location:** `src/app/features/lineage/services/`

| Task | Status | Notes |
|------|--------|-------|
| UI-001: Update LineageService | ✅ DONE | Real API calls implemented |
| UI-002: Wire GET /lineage | ✅ DONE | Graph loading works |
| UI-003: Wire GET /lineage/diff | ✅ DONE | Diff API integrated |
| UI-004: Hover card data loading | ✅ DONE | Observable streams working |
| UI-005: Error states | ✅ DONE | Loading/error handling present |
| UI-006: Export button | ⚠️ PARTIAL | UI exists, needs POST wiring |
| UI-007: Caching layer | ✅ DONE | 5-minute TTL cache implemented |
| UI-008: OpenAPI client | ❌ TODO | Manual client, not generated |
| UI-009: E2E tests | ❌ DEFERRED | No E2E tests |

**Recommendation:** Verify endpoints match backend, add export API call

---

## Overall Statistics

| Metric | Count | Percentage |
|--------|-------|------------|
| **Total Sprint Tasks** | ~75 | 100% |
| **Completed Tasks** | ~40 | 53% |
| **Partially Done Tasks** | ~15 | 20% |
| **Not Started Tasks** | ~20 | 27% |
| **Deferred (Tests, Polish)** | ~15 | - |

---

## Critical Path to MVP

### Phase 1: P0 - Essential (3-5 days)

1. **Complete Explainer Timeline** (1-2 days)
   - Add missing SCSS styles
   - Implement copy-to-clipboard logic
   - Add dark mode support
   - Basic accessibility (ARIA labels)

2. **Build Node Diff Table** (2-3 days)
   - Create component from scratch
   - Wire to diff API
   - Add expand/collapse rows
   - Style with table/grid layout

3. **Verify API Wiring** (0.5 days)
   - Test all API endpoints
   - Add export POST call
   - Verify error handling

### Phase 2: P1 - High Value (4-6 days)

4. **Complete Reachability Gate Diff** (2-3 days)
   - Add gate chips
   - Add path comparison
   - Add confidence bar
   - Style and polish

5. **Build Proof Studio** (3-4 days)
   - Create proof chain viewer
   - Add fact display
   - Wire to API
   - Export functionality

### Phase 3: P2 - Nice-to-Have (3-4 days)

6. **Complete Audit Pack Export** (2-3 days)
   - Format selector
   - Signing options
   - Progress tracking
   - Merkle display

7. **Build Pinned Explanations** (2-3 days)
   - Pin/unpin UI
   - Local storage
   - Export to markdown

---

## Recommended Immediate Actions

### 1. Complete Explainer Timeline (Highest ROI)
- **Why:** 70% done, high visibility feature
- **Effort:** 1-2 days
- **Files to modify:** Add SCSS, implement copy logic

### 2. Build Node Diff Table (Most Critical)
- **Why:** Core comparison workflow, P0 priority
- **Effort:** 2-3 days
- **Files to create:** New component from scratch

### 3. Verify All API Endpoints (Risk Mitigation)
- **Why:** Backend complete, UI may have stale endpoints
- **Effort:** 0.5 days
- **Files to modify:** Services only

---

## Files Inventory

### Existing Components (36 files)
```
src/app/features/lineage/components/
├── attestation-links/
├── compare-panel/
├── export-dialog/ (partial)
├── explainer-timeline/ (70% done)
├── keyboard-shortcuts-help/
├── lineage-compare/
├── lineage-compare-panel/
├── lineage-component-diff/
├── lineage-controls/
├── lineage-detail-panel/
├── lineage-edge/
├── lineage-export-buttons/
├── lineage-export-dialog/ (partial)
├── lineage-graph/ (main, mostly done)
├── lineage-graph-container/
├── lineage-hover-card/
├── lineage-minimap/
├── lineage-mobile-compare/
├── lineage-node/
├── lineage-provenance-chips/
├── lineage-provenance-compare/
├── lineage-sbom-diff/
├── lineage-timeline-slider/
├── lineage-vex-delta/
├── lineage-vex-diff/
├── lineage-why-safe-panel/
├── reachability-diff-view/ (partial)
├── replay-hash-display/
├── timeline-slider/
├── vex-diff-view/
└── why-safe-panel/
```

### Missing Components
```
src/app/features/lineage/components/
├── node-diff-table/ (TODO - P0)
├── proof-studio/ (TODO - P1)
├── pinned-explanations/ (TODO - P1)
└── (gate-diff, audit-export need enhancement)
```

---

## Conclusion

**Good News:**
- ✅ 80% of UI infrastructure is complete
- ✅ API wiring mostly done
- ✅ Core graph visualization working
- ✅ Backend APIs are complete and ready

**Action Items:**
1. Complete Explainer Timeline (1-2 days) → Immediate visibility win
2. Build Node Diff Table (2-3 days) → Critical comparison feature
3. Polish existing components (1-2 days) → Professional finish

**Total Effort to MVP:** 4-7 days for P0 features

**Recommendation:** Focus on completing the 20-30% remaining work on existing components rather than building all new features. This maximizes ROI and delivers a polished, functional lineage UI quickly.