# UI Components

This directory contains documentation for the StellaOps Angular UI components.

## Evidence-Weighted Score (EWS) Components

The EWS component suite provides visual representations of vulnerability scores based on evidence-weighted analysis.

### Core Components

| Component | Purpose | Location |
|-----------|---------|----------|
| [ScorePill](./score-pill.md) | Compact score display with bucket coloring | `shared/components/score/` |
| [ScoreBreakdownPopover](./score-breakdown-popover.md) | Detailed score breakdown with dimensions | `shared/components/score/` |
| [ScoreBadge](./score-badge.md) | Evidence flag badges (live-signal, proven-path, etc.) | `shared/components/score/` |
| [ScoreHistoryChart](./score-history-chart.md) | Timeline visualization of score changes | `shared/components/score/` |

### Feature Components

| Component | Purpose | Location |
|-----------|---------|----------|
| [FindingsList](./findings-list.md) | Findings table with EWS integration | `features/findings/` |
| [BulkTriageView](./bulk-triage-view.md) | Bulk triage interface with bucket summaries | `features/findings/` |

## Score Buckets

All EWS components use a consistent bucket system:

| Bucket | Score Range | Color | Priority |
|--------|-------------|-------|----------|
| Act Now | 90-100 | Red (`#DC2626`) | Critical - Immediate action required |
| Schedule Next | 70-89 | Amber (`#D97706`) | High - Schedule for next sprint |
| Investigate | 40-69 | Blue (`#2563EB`) | Medium - Investigate when possible |
| Watchlist | 0-39 | Gray (`#6B7280`) | Low - Monitor for changes |

## Evidence Flags

Findings can have special flags indicating evidence quality:

| Flag | Icon | Color | Description |
|------|------|-------|-------------|
| `live-signal` | Signal wave | Green | Active runtime signals detected |
| `proven-path` | Checkmark | Blue | Verified reachability path confirmed |
| `vendor-na` | Strikethrough | Gray | Vendor marked as not affected |
| `speculative` | Question mark | Orange | Evidence is speculative/unconfirmed |
| `anchored` | [A] | Violet | Score anchored with DSSE/Rekor attestation |
| `hard-fail` | [!] | Red | Policy hard-fail triggered |

## Witness Visualization Components

> **Sprint:** SPRINT_20260118_020_FE_witness_visualization

The witness visualization component suite provides UI for runtime witness display, static vs runtime path comparison, and witness gate results in release promotion flows.

### Components

| Component | Purpose | Location |
|-----------|---------|----------|
| [WitnessStatusChip](./witness-visualization.md#witness-status-chip) | Status badge showing witness state (witnessed/unwitnessed/stale/failed) | `shared/domain/witness-status-chip/` |
| [WitnessComparison](./witness-visualization.md#witness-comparison-component) | Side-by-side static vs runtime path comparison | `shared/components/witness-comparison/` |
| [UnwitnessedAdvisory](./witness-visualization.md#unwitnessed-advisory-component) | Advisory panel for paths without witnesses | `shared/components/unwitnessed-advisory/` |
| [GateSummaryPanel](./witness-visualization.md#gate-summary-panel-extended) | Extended gate summary with witness metrics | `shared/domain/gate-summary-panel/` |

### Witness States

| State | Badge Color | Description |
|-------|-------------|-------------|
| `witnessed` | Green | Path confirmed by runtime observation |
| `unwitnessed` | Yellow | Path not yet observed at runtime |
| `stale` | Orange | Witness data is outdated |
| `failed` | Red | Witness verification failed |

### Usage

```typescript
import {
  WitnessStatusChipComponent,
  WitnessComparisonComponent,
  UnwitnessedAdvisoryComponent,
  GateSummaryPanelComponent,
} from '@app/shared/domain';
```

```html
<!-- Witness Status Chip -->
<app-witness-status-chip [status]="'witnessed'" [showCount]="true" />

<!-- Witness Comparison -->
<app-witness-comparison [data]="comparisonData" (stepClick)="onStepClick($event)" />

<!-- Unwitnessed Advisory -->
<app-unwitnessed-advisory [data]="advisoryData" (createTestTask)="onCreateTask($event)" />
```

See [witness-visualization.md](./witness-visualization.md) for full documentation.

---

## Grey Queue Components

> **Sprint:** SPRINT_20260112_011_FE_policy_unknowns_queue_integration

The Grey Queue component suite handles observations with uncertain status requiring operator attention.

### Components

| Component | Purpose | Location |
|-----------|---------|----------|
| GreyQueuePanel | Display grey queue item with fingerprint, triggers, conflicts, and actions | `features/unknowns/` |
| GreyQueueDashboard | Dashboard view with filtering and deterministic ordering | `features/unknowns/` |
| DeterminizationReview | Detailed review context for grey queue items | `features/unknowns/` |

### Observation States

| State | Badge Color | Description |
|-------|-------------|-------------|
| `PendingDeterminization` | Yellow | Evidence incomplete; monitoring active |
| `Disputed` | Orange | Conflicting evidence; manual adjudication required |
| `GuardedPass` | Blue | Allowed with runtime guardrails |
| `Resolved` | Green | Operator has made a determination |

### Usage

```typescript
// Grey queue components
import {
  GreyQueuePanelComponent,
  GreyQueueDashboardComponent,
  DeterminizationReviewComponent,
} from '@app/features/unknowns';
```

```html
<!-- Grey Queue Panel -->
<app-grey-queue-panel
  [unknown]="policyUnknown"
  (triageAction)="onTriageAction($event)"
/>

<!-- Grey Queue Dashboard -->
<app-grey-queue-dashboard
  [unknowns]="unknownsList"
  (selectUnknown)="onSelectUnknown($event)"
/>
```

See `docs/UI_GUIDE.md#grey-queue-and-unknowns-triage` for operator workflow documentation.

## Quick Start

### Import Components

```typescript
// Score components
import {
  ScorePillComponent,
  ScoreBreakdownPopoverComponent,
  ScoreBadgeComponent,
  ScoreHistoryChartComponent,
} from '@app/shared/components/score';

// Findings components
import {
  FindingsListComponent,
  BulkTriageViewComponent,
} from '@app/features/findings';
```

### Basic Usage

```html
<!-- Display a score pill -->
<stella-score-pill [score]="78" size="md" />

<!-- Display score badges -->
<stella-score-badge type="live-signal" />
<stella-score-badge type="proven-path" />

<!-- Full findings list with scoring -->
<app-findings-list
  [findings]="findings"
  [autoLoadScores]="true"
  (findingSelect)="onFindingSelect($event)"
/>
```

## Storybook

Interactive examples and documentation are available in Storybook:

```bash
cd src/Web/StellaOps.Web
npm run storybook
```

Navigate to:
- `Score/ScorePill` - Score pill variants
- `Score/ScoreBreakdownPopover` - Breakdown popover examples
- `Score/ScoreBadge` - Evidence flag badges
- `Score/ScoreHistoryChart` - History chart variants
- `Findings/FindingsList` - Findings list with scoring
- `Findings/BulkTriageView` - Bulk triage interface

## Design Tokens

Score colors are defined as CSS custom properties. See [design-tokens.md](./design-tokens.md) for the full token reference.

## Accessibility

All components follow WCAG 2.1 AA guidelines:
- Proper ARIA labels and roles
- Keyboard navigation support
- Focus management
- Color contrast ratios meet AA standards
- Screen reader announcements for dynamic content