Implements a 5-layer always-on notification system that maintains
persistent WebSocket connections to the user's inbox relays for
real-time notification delivery, eliminating the dependency on the
external push server seeing all relays.
Layer architecture:
- L1: Foreground service (specialUse type, no Android 15 time limit)
keeps the shared NostrClient alive by collecting relayServices flow
- L2: FCM/UnifiedPush (existing, unchanged) as wakeup trigger
- L3: WorkManager periodic worker (15-min catch-up safety net)
- L4: BOOT_COMPLETED receiver (restart service after reboot)
- L5: AlarmManager watchdog (5-min health check for OEM killers)
Key design: the foreground service shares the same NostrClient as the
UI. When the app foregrounds, both the UI and service are subscribers
to the relay pool. When the app backgrounds, UI subscriptions drop
but service subscriptions remain — zero reconnection needed.
New files:
- NotificationRelayService: foreground service with persistent notification
- BootCompletedReceiver: restarts service on device boot
- NotificationCatchUpWorker: WorkManager fallback for missed events
- ServiceWatchdogManager: AlarmManager-based health monitor
- AlwaysOnNotificationServiceManager: coordinates all 5 layers
Settings: opt-in toggle in App Settings, persisted per-account.
https://claude.ai/code/session_01LEPfmgGnwjB9a5SDFw5U8t
Claude
ae548a851d