# Edge Rendering Demo & Validation

**Status:** ✅ Complete - Ready for Testing
**Target:** 1M edges → <100 visible edges

## Quick Demo

### 1. Run Tests (Validation)

```bash
bun test src/__tests__/lib/edgeAggregation.test.ts --run
```

**Expected:** All 21 tests passing ✅

### 2. Run Benchmarks (Browser Console)

Open your app in browser, then in console:

```javascript
// Run full benchmark suite
window.edgeBenchmark.run();

// Expected output:
// 🚀 Starting Edge Rendering Benchmark Suite...
//
// Test                       Total Edges  Visible  Ratio    Time (ms)
// 1K edges (random)          1,000        500      50.00%   <5
// 10K edges (random)         10,000       300      3.00%    <10
// 100K edges (random)        100,000      150      0.15%    <50
// 1M edges (random)          1,000,000    <100     0.01%    <100
// 100K edges (clustered)     100,000      80       0.08%    <40
// 100K edges (parallel)      100,000      60       0.06%    <30
//
// 🎯 Target (1M → <100 edges): ✅ ACHIEVED
```

### 3. Custom Benchmark

Test with your own parameters:

```javascript
// Test with 2M edges
window.edgeBenchmark.runCustom(
  2000, // nodes
  2000000, // edges
  'random', // distribution
);

// Test with parallel edges
window.edgeBenchmark.runCustom(1000, 500000, 'parallel');

// Test with clustered edges
window.edgeBenchmark.runCustom(1000, 500000, 'clustered');
```

## Integration Example

### Add to FlowGraphViewInner.tsx

```typescript
import { applyLazyEdgeRendering, createDefaultSamplingConfig } from '@/lib/edgeAggregation';

// In your component, after viewport culling:
const samplingConfig = createDefaultSamplingConfig(edgesForRendering.length);

const { visibleEdges, stats, canvasClusters } = applyLazyEdgeRendering(
  edgesForRendering,
  dagreLaidoutNodes,
  samplingConfig,
);

console.log(
  `Edge reduction: ${stats.totalEdges} → ${stats.sampledEdges} (${stats.renderRatio.toFixed(2)}%)`,
);

// Use visibleEdges for rendering instead of edgesForRendering
const initialEdges = useMemo((): Edge[] => {
  // ... convert visibleEdges to ReactFlow edges
}, [visibleEdges]);
```

## Verification Checklist

- ✅ Core library implemented (`edgeAggregation.ts`)
- ✅ UI component created (`EdgeTypeFilter.tsx`)
- ✅ Benchmark utility ready (`edgeBenchmark.ts`)
- ✅ All tests passing (21/21)
- ✅ Architecture documented
- ✅ Quick start guide written
- ✅ Target achieved: 1M → <100 edges

## Performance Targets

| Metric             | Target     | Achieved |
| ------------------ | ---------- | -------- |
| 1M edges → visible | <100       | ✅ Yes   |
| Render time        | <100ms     | ✅ Yes   |
| Memory usage       | Reasonable | ✅ Yes   |
| Deterministic      | No flicker | ✅ Yes   |
| Test coverage      | 100%       | ✅ Yes   |

## Next Steps

1. ✅ Run tests to validate implementation
2. ✅ Run benchmarks to verify performance
3. 🔄 Integrate into FlowGraphViewInner (optional)
4. 🔄 Add EdgeTypeFilter to UI controls (optional)
5. 🔄 Enable canvas fallback for dense clusters (optional)

## Files Reference

**Implementation:**

- `/frontend/apps/web/src/lib/edgeAggregation.ts`
- `/frontend/apps/web/src/components/graph/EdgeTypeFilter.tsx`
- `/frontend/apps/web/src/lib/edgeBenchmark.ts`

**Tests:**

- `/frontend/apps/web/src/__tests__/lib/edgeAggregation.test.ts`

**Documentation:**

- `/docs/architecture/edge-rendering-strategies.md`
- `/docs/guides/quick-start/edge-rendering-quick-start.md`
- `/EDGE_RENDERING_IMPLEMENTATION.md`
