skill-level: medior
status: done
Task: Implement Notification Service
End Goal
A Flutter service that handles incoming notifications, manages notification state, and provides reactive access to notifications for the inbox UI.
Currently
InboxViewModel has an empty Informer<List<MessageDto>>([])- No notification API or service exists
- No Firestore collection for notifications
Should
NotificationService streams notifications from Firestore- Notifications are sorted by creation time descending
- Read/unread state is tracked and updatable
- Unread count is available for badge display
- Service integrates with existing inbox infrastructure
Constraints
- [ ] Follow existing sync service patterns (HouseholdCollectionSyncService or similar)
- [ ] Use existing
MessageDto structure with extensions for notification fields
- [ ] Maintain ID maps for O(1) lookups
- [ ] Single loop for state updates in sync handler
Acceptance Criteria
- [ ]
NotificationService is registered in LocatorService
- [ ] Notifications stream in real-time from Firestore
- [ ] Unread count is reactively available
- [ ]
markAsRead(notificationId) updates Firestore
- [ ] InboxViewModel uses NotificationService for data
Implementation Checklist
- [ ] 4.1 Add
notifications to FirestoreCollection enum
- [ ] 4.2 Create
NotificationsApi extending RmyApi
- [ ] 4.3 Create
NotificationService as LazySingleton
- [ ] 4.4 Implement Firestore stream subscription
- [ ] 4.5 Implement
beforeSyncNotifyUpdate with single-loop processing
- [ ] 4.6 Implement unread count Informer
- [ ] 4.7 Implement
markAsRead method
- [ ] 4.8 Implement
markAllAsRead method
- [ ] 4.9 Update InboxViewModel to use NotificationService
- [ ] 4.10 Add Firestore security rules for notifications collection
- [ ] 4.11 Register service in LocatorService
Notes
- Query:
where('recipientId', '==', userId).orderBy('created', 'desc').limit(100)
- Consider pagination for users with many notifications
readAt field is null for unread, timestamp for read
Reacties