# Updates Page Component Structure

## Visual Hierarchy

```
Updates Page
├── Header Section
│   ├── Title: "Agent Updates"
│   ├── Subtitle: "Manage agent version rollouts..."
│   └── Refresh Button (with spinner)
│
└── Rollouts Card
    ├── Card Header
    │   └── Title: "Rollouts"
    │
    └── Card Content
        ├── Loading State (spinner + "Loading rollouts...")
        ├── Error State (error icon + message + retry button)
        ├── Empty State ("No rollouts yet...")
        │
        └── Rollouts Table
            ├── Table Header
            │   ├── Version
            │   ├── OS / Arch
            │   ├── Channel
            │   ├── Health
            │   ├── Success Rate
            │   ├── Beta Agents
            │   ├── Stable Agents
            │   └── Actions
            │
            └── Table Body (for each rollout)
                ├── Version (monospace)
                ├── OS / Arch (gray text)
                ├── Channel Badge (blue/purple)
                ├── Health Badge (green/yellow/red/gray)
                ├── Success Rate (colored %)
                ├── Beta Count
                ├── Stable Count
                └── Action Buttons
                    ├── Promote Button (arrow up)
                    └── Rollback Button (rotate ccw)
```

## Component Breakdown

### Main Component: `Updates`
- State Management:
  - `rollouts` - Array of rollout data
  - `isLoading` - Loading state
  - `error` - Error message
  - `promoteDialog` - Promote dialog state
  - `rollbackDialog` - Rollback dialog state
- Effects:
  - Initial data fetch
  - 30-second auto-refresh
- Mutations:
  - `promoteMutation` - Handles promotion with force option
  - `rollbackMutation` - Handles rollback with reason

### Sub-Components

#### `HealthStatusBadge`
Props: `{ status: string }`
Variants:
- healthy → green + CheckCircle
- warning → yellow + AlertTriangle
- critical → red + AlertCircle
- blocked → dark red + X
- unknown → gray (no icon)

#### `ChannelBadge`
Props: `{ channel: string }`
Variants:
- beta → blue badge
- stable → purple badge

#### `PromoteDialog`
Props:
- `rollout` - Rollout to promote
- `onClose` - Close handler
- `onConfirm` - Confirm with force flag
- `isLoading` - Loading state
- `showForceOption` - Show force promote option

Features:
- Normal promotion flow
- Force promotion flow (after 403)
- Warning message for force promote

#### `RollbackDialog`
Props:
- `rollout` - Rollout to rollback
- `onClose` - Close handler
- `onConfirm` - Confirm with reason
- `isLoading` - Loading state

Features:
- Required reason text input
- Warning about force-downgrade
- Disabled confirm until reason entered

## Data Flow

```
┌─────────────────┐
│  Initial Load   │
└────────┬────────┘
         │
         ▼
┌─────────────────────────────┐
│  fetchRollouts()            │
│  GET /api/updates/rollouts  │
└────────┬────────────────────┘
         │
         ▼
┌────────────────────┐      ┌──────────────────┐
│  setRollouts()     │◄─────┤  Auto-refresh    │
│  setIsLoading()    │      │  (every 30s)     │
└────────────────────┘      └──────────────────┘

User Action: Promote
┌─────────────────────┐
│  Click Promote Btn  │
└────────┬────────────┘
         │
         ▼
┌───────────────────────┐
│  Open Promote Dialog  │
└────────┬──────────────┘
         │
         ▼
┌──────────────────────────────────────┐
│  User Confirms                       │
│  POST /api/updates/rollouts/promote  │
└────────┬─────────────────────────────┘
         │
         ├──► Success
         │    ├─► Show success toast
         │    ├─► Close dialog
         │    ├─► Refresh rollouts
         │    └─► Invalidate agent cache
         │
         └──► 403 (Health Failed)
              ├─► Show force promote dialog
              └─► User can force promote

User Action: Rollback
┌──────────────────────┐
│  Click Rollback Btn  │
└────────┬─────────────┘
         │
         ▼
┌────────────────────────┐
│  Open Rollback Dialog  │
│  User enters reason    │
└────────┬───────────────┘
         │
         ▼
┌───────────────────────────────────────┐
│  User Confirms                        │
│  POST /api/updates/rollouts/rollback  │
└────────┬──────────────────────────────┘
         │
         ├──► Success
         │    ├─► Show toast with agent count
         │    ├─► Close dialog
         │    ├─► Refresh rollouts
         │    └─► Invalidate agent cache
         │
         └──► Error
              └─► Show error toast
```

## API Contract

### GET /api/updates/rollouts
Response: `RolloutInfo[]`
```json
[
  {
    "version": "0.6.27",
    "os": "windows",
    "arch": "x86_64",
    "channel": "beta",
    "health": {
      "status": "healthy",
      "total_attempts": 50,
      "success_count": 48,
      "failure_count": 2,
      "crash_count": 0
    },
    "beta_agent_count": 15,
    "stable_agent_count": 230,
    "created_at": "2026-05-24T10:30:00Z"
  }
]
```

### POST /api/updates/rollouts/:version/promote
Request:
```json
{
  "os": "windows",
  "arch": "x86_64",
  "force": false
}
```

Response (200):
```json
{
  "message": "Version 0.6.27 promoted to stable"
}
```

Response (403 - Health Check Failed):
```json
{
  "error": "Health check failed: crash rate too high"
}
```

### POST /api/updates/rollouts/:version/rollback
Request:
```json
{
  "os": "windows",
  "arch": "x86_64",
  "reason": "Critical bug causing memory leaks"
}
```

Response:
```json
{
  "message": "Version 0.6.27 rolled back",
  "agents_downgraded": 15
}
```

## Styling Classes

### Color Coding
- Success rates:
  - >= 95%: `text-green-600 dark:text-green-400`
  - >= 80%: `text-yellow-600 dark:text-yellow-400`
  - < 80%: `text-red-600 dark:text-red-400`

### Badge Variants
- Green (healthy): `bg-green-500/15 text-green-600 dark:text-green-400`
- Yellow (warning): `bg-yellow-500/15 text-yellow-700 dark:text-yellow-400`
- Red (critical/error): `bg-red-500/15 text-red-600 dark:text-red-400`
- Blue (beta): `bg-blue-500/15 text-blue-600 dark:text-blue-400`
- Purple (stable): `bg-purple-500/15 text-purple-600 dark:text-purple-400`

### Table Styling
- Header: `border-b border-[hsl(var(--border))]`
- Row hover: `hover:bg-[hsl(var(--muted))]/50`
- Monospace font: `font-mono text-sm`

## Accessibility Features
- Semantic HTML (table, th, td)
- Button tooltips for disabled states
- Dialog aria-labels (via Radix UI)
- Loading states announced
- Error states with retry option
- Required field indicators (*) on forms
- Focus management in dialogs
- Keyboard navigation support

## Responsive Design
- Table container with horizontal scroll
- Card layout adapts to screen size
- Dialog responsive (max-w-lg)
- Mobile-friendly button spacing
- Text wrapping for long content

## Error Handling
- Network errors → error state with retry
- 403 on promote → show force option
- Empty rollouts → empty state message
- Loading timeout → error state
- Mutation errors → toast notification
