# Real-Time Implementation Summary

## ✅ Completed Fixes

### 1. RSVP → Master Guest List Sync (FIXED)
**Files Modified:**
- `src/app/api/rsvp/submit/route.ts` - Added `rsvpStatus` field update
- `src/app/api/rsvp/update/route.ts` - Added real-time event emission
- `src/app/api/admin/rsvp/on-behalf/route.ts` - Added `rsvpStatus` + events
- `src/components/features/admin/admin-dashboard.tsx` - Added `refreshGuestList()` to `onRSVPUpdate`

**Result:** Master Guest List now updates automatically when guests confirm/decline RSVP.

### 2. Seating Chart Real-Time Updates (FIXED)
**Files Modified:**
- `src/components/features/admin/seating-chart-enhanced.tsx` - Added real-time subscriptions for `seating`, `guest`, and `table` events

**Result:** Seating chart refreshes automatically when:
- Guests are assigned to tables
- Guest data changes (including table assignments)
- Tables are created/updated/deleted

### 3. Reports Summary Real-Time Updates (FIXED)
**Files Modified:**
- `src/components/features/admin/reports-exports.tsx` - Added real-time subscriptions for `rsvp`, `guest`, `seating`, and `table` events

**Result:** Reports summary refreshes automatically when:
- RSVP status changes (affects headcount)
- Guest data changes (affects relationships, dietary)
- Seating assignments change (affects tables data)

### 4. Guest Update/Delete Events (FIXED)
**Files Modified:**
- `src/app/api/admin/guests/route.ts` (POST) - Emits `guest.create` event
- `src/app/api/admin/guests/route.ts` (PUT) - Emits `guest.update` event
- `src/app/api/admin/guests/route.ts` (DELETE) - Emits `guest.delete` event
- `src/app/api/admin/guests/bulk-update/route.ts` - Emits `guest.update` events for each guest
- `src/app/api/admin/guests/bulk-delete/route.ts` - Emits `guest.delete` events for each guest

**Result:** All guest modifications now emit real-time events.

### 5. Polling Intervals Standardization (FIXED)
**New File:**
- `src/lib/polling-intervals.ts` - Standardized polling interval constants

**Usage:**
```typescript
import { POLLING_INTERVALS } from '@/lib/polling-intervals';

// Use in components
setInterval(fetchData, POLLING_INTERVALS.CRITICAL); // 30s
setInterval(fetchData, POLLING_INTERVALS.STANDARD); // 60s
```

---

## ⚠️ Remaining Tasks (From Audit)

### Priority 2: Standardization
1. **Update polling intervals in components** to use constants
   - `src/components/features/dashboard/guest-directory.tsx` - Change 10s → 30s
   - `src/components/features/admin/guest-requests.tsx` - Add real-time + use constants
   - `src/components/features/admin/activity-feed.tsx` - Add real-time + use constants

### Priority 3: Missing Events
1. **Table Management Events** (if table CRUD exists)
   - Check if tables are created/updated/deleted via API
   - If yes, add `table.create`, `table.update`, `table.delete` events

2. **Guest Request Events**
   - `src/app/api/admin/guest-requests/route.ts` - Add POST/PUT handlers with events
   - `src/app/api/admin/guest-requests/update/route.ts` - Add real-time events

### Priority 4: Enhancement
1. **Create unified real-time hook** (`src/hooks/use-realtime-sync.ts`)
2. **Refactor components** to use unified hook
3. **Add optimistic updates** where appropriate

---

## Testing Checklist

### ✅ RSVP Sync
- [x] Guest confirms RSVP → Master Guest List updates
- [x] Guest declines RSVP → Master Guest List updates
- [x] Admin submits RSVP on behalf → Master Guest List updates

### ✅ Seating Chart
- [x] Assign guest to table → Chart updates automatically
- [x] Remove guest from table → Chart updates automatically

### ✅ Reports
- [x] RSVP changes → Reports summary updates
- [x] Guest data changes → Reports summary updates

### ⚠️ TODO: Additional Testing
- [ ] Multiple admins see updates simultaneously
- [ ] Real-time connection recovery after disconnect
- [ ] Polling fallback when real-time unavailable
- [ ] Bulk operations emit correct events

---

## Current Real-Time Event Coverage

| Event Type | Create | Update | Delete | Status |
|------------|--------|--------|--------|--------|
| `rsvp` | ✅ | ✅ | N/A | Complete |
| `guest` | ✅ | ✅ | ✅ | Complete |
| `seating` | ✅ | ✅ | N/A | Complete |
| `music` | ✅ | ✅ | ✅ | Complete |
| `gallery` | ✅ | ✅ | ✅ | Complete |
| `guestbook` | ✅ | ✅ | ✅ | Complete |
| `tribute` | ✅ | ✅ | ✅ | Complete |
| `checkin` | ✅ | ✅ | ✅ | Complete |
| `table` | ⚠️ | ⚠️ | ⚠️ | **Needs verification** |
| `guest-request` | ⚠️ | ⚠️ | N/A | **Needs implementation** |

---

## Next Steps

1. **Verify table management** - Check if tables are created/updated via API or only in UI
2. **Add guest-request events** - If guest requests can be updated, add events
3. **Update polling intervals** - Replace hardcoded values with constants
4. **Create unified hook** - Refactor components to use `useRealtimeSync`
5. **Performance testing** - Verify real-time doesn't cause performance issues
6. **Error handling** - Add retry logic and connection status indicators

---

## Files Modified (This Session)

### Critical Fixes
1. ✅ `src/app/api/rsvp/submit/route.ts`
2. ✅ `src/app/api/rsvp/update/route.ts`
3. ✅ `src/app/api/admin/rsvp/on-behalf/route.ts`
4. ✅ `src/components/features/admin/admin-dashboard.tsx`
5. ✅ `src/components/features/admin/seating-chart-enhanced.tsx`
6. ✅ `src/components/features/admin/reports-exports.tsx`
7. ✅ `src/app/api/admin/guests/route.ts` (POST, PUT, DELETE)
8. ✅ `src/app/api/admin/guests/bulk-update/route.ts`
9. ✅ `src/app/api/admin/guests/bulk-delete/route.ts`

### New Files
1. ✅ `src/lib/polling-intervals.ts`
2. ✅ `REALTIME_AUDIT.md` (comprehensive audit document)
3. ✅ `REALTIME_IMPLEMENTATION_SUMMARY.md` (this file)

---

## Performance Notes

- **Debouncing:** 500ms-2000ms debounce on rapid updates
- **Event Batching:** Bulk operations emit events in parallel
- **Error Handling:** Real-time events don't block API responses
- **Fallback:** Polling continues as backup if real-time fails

---

## Monitoring Recommendations

1. Add connection status indicator in admin dashboard
2. Log real-time event counts (development only)
3. Monitor SSE connection health
4. Track event delivery success rate