# Phase 3D - Settings Page and WhatsApp Health Checks

## Implemented: 2026-05-29

### Summary
Replaced the Settings placeholder at `/admin/settings` with a real admin settings dashboard. The page provides Admin with visibility into WhatsApp integration status, webhook health, Cloud API configuration readiness, routing rules, notification settings, and chat behavior.

### Settings Page Location
- **Route**: `/admin/settings`
- **Controller**: `app/Filament/Pages/Settings.php`
- **View**: `resources/views/filament/pages/settings.blade.php`
- **Tests**: `tests/Feature/SettingsDashboardTest.php`

### Sections Implemented

#### 1. WhatsApp Integration Status
- App Secret: configured/masked/not configured
- Access Token: configured/masked/not configured
- Phone Number ID: configured/displayed
- Verify Token: configured/displayed
- Business Account ID: configured/displayed
- Signature verification: enabled/disabled
- Webhook URL (computed from APP_URL)
- SSL verification status
- Proxy setting
- Sticky window days

#### 2. Webhook Health
- Total events received
- Events in last 24 hours
- Events in last 7 days
- Last event timestamp (relative)
- Endpoint URL
- Signature verification status

#### 3. Cloud API Health
- Per-config readiness check (5 items)
- Overall readiness status with missing configs listed
- Can-send-messages capability flag
- Can-verify-webhooks capability flag

#### 4. Routing Rules (Read-Only)
- Dedicated agent priority
- WABA phone ID matching
- Waiting List fallback
- Active employee requirement
- Inactive employee behavior
- Sticky window configuration

#### 5. Notification Settings
- Polling interval (15s)
- Database notifications (Filament)
- Audio notifications (Web Audio API)
- Visual notifications (pulsing/animated badge)
- Broadcast/WebSocket status

#### 6. Chat Behavior
- Mark-as-read on open
- Unread count tracking
- Closed conversation reopen behavior
- Attachment support status (partial)
- Quick replies (6 buttons)
- Textarea auto-grow input

### Config Variables Checked
- WHATSAPP_APP_SECRET
- WHATSAPP_ACCESS_TOKEN
- WHATSAPP_PHONE_NUMBER_ID
- WHATSAPP_VERIFY_TOKEN
- WHATSAPP_BUSINESS_ACCOUNT_ID
- WHATSAPP_VERIFY_SIGNATURE
- WHATSAPP_VERIFY_SSL
- WHATSAPP_PROXY
- WHATSAPP_STICKY_WINDOW_DAYS
- APP_URL

### Health Warnings
- 🔴 Missing WHATSAPP_APP_SECRET — webhook verification may fail
- 🔴 Missing WHATSAPP_ACCESS_TOKEN — cannot send messages
- 🔴 Missing WHATSAPP_PHONE_NUMBER_ID — message sending may fail
- 🟡 Signature verification disabled — webhook security reduced
- 🔵 WebSocket/Reverb not configured — using polling

### Security Notes
- Secrets are masked: `abcd****efgh`
- Secrets set to "your-app-secret-here" are shown as "Not configured"
- Full tokens never appear in the UI
- The test confirms no plain-text token leaks in the response body
- Settings page is admin-only (supervisor/employee get 403)

### Access Control
- **Admin**: ✅ Full access to all settings and health data
- **Supervisor**: ❌ 403 Forbidden
- **Employee**: ❌ 403 Forbidden

### Files Changed
- `app/Filament/Pages/Settings.php` — Full rewrite with 9 health/status methods
- `resources/views/filament/pages/settings.blade.php` — Full rewrite with 6 sections + warnings

### Files Created
- `tests/Feature/SettingsDashboardTest.php` — 10 tests

### Test Results
```
Tests:    10 passed (22 assertions)
Duration: 7.37s
```

### Remaining Limitations
- No editable settings forms — all data is read-only status display
- No Meta API connectivity test (safe local config check only)
- Notification settings are hardcoded descriptions (not configurable)
- No settings stored in database — all reads from .env via config
- No editable routing rules UI