# Phase 4: Canvas Visualisation Views - Progress Tracker

**Last Updated:** 2026-07-01  
**Overall Status:** 🟡 In Progress

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## Quick Summary

| Metric       | Value    |
| ------------ | -------- |
| Total Tasks  | 12       |
| Completed    | 6        |
| In Progress  | 1        |
| Unstable     | 2        |
| Not Started  | 3        |
| **Progress** | **~60%** |

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## Task Status

### Prerequisites

| Task       | Name                   | Status      | Notes                                      |
| ---------- | ---------------------- | ----------- | ------------------------------------------ |
| PREREQ-001 | Webpack Caching Fix    | 🟢 Complete | March 2026 - Fixed dev caching issues      |
| PREREQ-002 | React 19 Debug Fixes   | 🟢 Complete | March 2026 - Fixed createRoot memory leaks |
| PREREQ-003 | Canvas Overlay Pattern | 🟢 Complete | January 2026 - 5 reference docs created    |
| PREREQ-004 | Highlighting API       | 🟢 Complete | Phase 1-4 infrastructure done, bug fixed   |

### Views

| Task     | Name                   | Status            | Notes                                                |
| -------- | ---------------------- | ----------------- | ---------------------------------------------------- |
| VIEW-000 | Foundation & Utils     | 🟢 Complete       | 26 functions, ~1200 LOC, graph analysis utilities    |
| VIEW-001 | Project Topology Map   | 🟡 In Progress    | Phase 1-2 done, bugs fixed, Phase 3-5 pending        |
| VIEW-002 | Component X-Ray        | 🟢 Complete       | Full implementation, 1 minor known bug with AI nodes |
| VIEW-003 | Trigger Chain Debugger | ⚠️ Unstable       | Phase 1-3 done, known issues with deduplication      |
| VIEW-004 | Node Census            | 🔴 Not Started    | README spec only                                     |
| VIEW-005 | Data Lineage View      | ⚠️ Not Prod Ready | Code exists but disabled due to bugs                 |
| VIEW-006 | Impact Radar           | 🔴 Not Started    | README spec only                                     |
| VIEW-007 | Semantic Layers        | 🔴 Not Started    | README spec only                                     |

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## Status Legend

- 🔴 **Not Started** - Work has not begun
- 🟡 **In Progress** - Actively being worked on
- 🟢 **Complete** - Finished and verified
- ⚠️ **Unstable/Not Prod Ready** - Has known issues, needs fixes

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## Recent Updates

| Date       | Update                                                                   |
| ---------- | ------------------------------------------------------------------------ |
| 2026-07-01 | Audit and correction of PROGRESS.md status                               |
| 2026-04-01 | VIEW-001 bug fixes complete (5 critical bugs)                            |
| 2026-03-01 | PREREQ-001, PREREQ-002 completed                                         |
| 2026-01-04 | VIEW-003 known issues identified, VIEW-005 disabled                      |
| 2026-01-03 | VIEW-000, VIEW-002, VIEW-003 Phase 1-3, PREREQ-003, PREREQ-004 completed |

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## Detailed Status

### PREREQ-001: Webpack Caching Fix ✅

- Fixed persistent webpack caching issues preventing code changes from loading
- Added `cache: false` to dev config, build timestamp canary
- Developers no longer need `npm run clean:all` after every change

### PREREQ-002: React 19 Debug Fixes ✅

- Fixed `createRoot` memory leaks in ConnectionPopup, HMR, and News Modal
- Established root reuse pattern for React 18/19

### PREREQ-003: Canvas Overlay Pattern ✅

- Created 5 reference docs in `dev-docs/reference/CANVAS-OVERLAY-*`
- Documents coordinate systems, event handling, React patterns
- Based on CommentLayer analysis

### PREREQ-004: Highlighting API ✅

- HighlightManager singleton with channel system
- React overlay components (HighlightOverlay, HighlightedNode, HighlightedConnection)
- Fixed MacBook trackpad pinch-zoom displacement bug
- Component boundary infrastructure (skeleton methods for future)

### VIEW-000: Foundation & Utils ✅

- `traversal.ts` - Connection chain tracing
- `crossComponent.ts` - Component boundary resolution
- `categorization.ts` - Semantic node grouping
- `duplicateDetection.ts` - Duplicate node detection
- 26 functions, ~1200 lines of code

### VIEW-001: Project Topology Map 🟡

**Completed:**

- Phase 1: Icons & styling (SVG icons, design tokens)
- Phase 2: Enhanced info (gradients, X-Ray stats, connection counts)
- Bug fixes: Card title wrapping, text contrast, mystery icon, padding, node list

**Pending:**

- Phase 3: Draggable cards (useDraggable hook ready)
- Phase 4: Sticky notes
- Phase 5: Drilldown navigation

### VIEW-002: Component X-Ray ✅

- Full sidebar panel implementation
- Shows usage, interface, structure, subcomponents, external deps, internal state
- Navigation to nodes and components
- Known issue: AI function nodes cause sidebar disappearing bug (workaround: close property editor)

### VIEW-003: Trigger Chain Debugger ⚠️

**Implemented:**

- Phase 1: TriggerChainRecorder infrastructure
- Phase 2: Chain builder utilities
- Phase 3: UI panel with timeline, stats

**Known Issues (see KNOWN-ISSUES.md):**

- Event deduplication still imperfect
- Filtering may show inaccurate data
- Feature marked experimental

### VIEW-005: Data Lineage View ⚠️

**Implemented but Disabled:**

- Core engine in `graphAnalysis/lineage.ts`
- UI components (DataLineagePanel, LineagePath, PathSummary)

**Why Disabled:**

- Event handling/timing issues (panel shows "No node selected")
- Excessive/irrelevant data in results (40+ steps for 3-node connection)
- Needs fundamental algorithm rethink

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## Dependencies

- **Phase 2** (React Migration) - Required for React overlay patterns
- Canvas overlay pattern documentation (PREREQ-003)
- Graph analysis utilities (VIEW-000)

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## Notes

### What's Working Well

- Foundation utilities are robust and well-documented
- Component X-Ray provides significant value
- Highlighting API infrastructure is solid
- Prerequisites unblocked all development work

### What Needs Attention

- VIEW-003 needs stability fixes before production use
- VIEW-005 needs algorithm redesign (not small fixes)
- VIEW-001 has remaining phases to implement

### Recommended Next Steps

1. Fix VIEW-003 known issues (improve deduplication)
2. Complete VIEW-001 Phase 3 (draggable cards)
3. Consider if VIEW-005 should be redesigned or removed
4. VIEW-004 (Node Census) would be straightforward to implement
