feat(push): PR-2 — wake handling, display-only - #471
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The background handler lives in its own file and does one thing: it records that a wake arrived; a test reads its imports so it never grows a bridge, a database or navigation. The app owns the Android channel the server's visible push names (mostro_notifications, high importance). A foreground push nudges a reconnect when the pool is not online. A tap on the OS notification opens Notifications, warm or cold; there is no payload to route on. The resume consumes the wake flag as a diagnostic before the resync it runs anyway. docs/PUSH_NOTIFICATIONS.md Phase 2, T2.1 + T2.2 + T2.3. Part of #147.
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WalkthroughThe notification flow now supports platform channel setup, background wake-state recording, resume-time wake consumption, offline resynchronization, and navigation to the Notifications screen from notification taps. ChangesPush notification lifecycle
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant FCM
participant PushNotificationService
participant SharedPreferences
participant ResumeResync
participant nostr_api
participant appRouter
FCM->>PushNotificationService: deliver push
PushNotificationService->>SharedPreferences: record wake flag
ResumeResync->>SharedPreferences: consume wake flag on resume
ResumeResync->>nostr_api: resync and hydrate
PushNotificationService->>nostr_api: resync when foreground message finds offline state
PushNotificationService->>appRouter: open Notifications on tap
Merge Risk: 🔵 Low · up to The notification channel appears in Android settings only as the hard-coded English name “Mostro.” Localize it before merge to preserve supported app language behavior. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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In `@lib/features/notifications/services/local_notifications.dart`:
- Line 13: Move the user-facing kPushChannelName value into the appropriate ARB
localization resources, generate the corresponding AppLocalizations accessor,
and update the local notification channel setup to receive
AppLocalizations.of(context).<wbr> value instead of the hard-coded constant.
Remove the hard-coded channel-name constant while preserving the existing
channel configuration.
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📒 Files selected for processing (6)
lib/core/lifecycle/resume_resync.dartlib/features/notifications/services/local_notifications.dartlib/features/notifications/services/push_background_handler.dartlib/features/notifications/services/push_notification_service.darttest/core/lifecycle/resume_resync_test.darttest/features/notifications/services/push_background_handler_test.dart
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Create the mostro_notifications channel before, and independently of, the plugin's initialize: the channel needs no initialisation, and a failed initialize must not leave the server's push on a default-importance channel. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CK6UD8Acwj73cMTMnGKgjA
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Summary
Phase 2, tasks T2.1 + T2.2 + T2.3 of
docs/PUSH_NOTIFICATIONS.md(§7.2, §9.3). Closes the mobile half of #147. Stacked on PR-1d (#470).With Phase 1 the server holds a token for every open trade; this PR is what happens when it rings. The rule from #308 is enforced in code: the push is a doorbell, never a courier.
push_background_handler.dart. It records one flag,push_wake_pending, and nothing else. A test reads the file's imports and fails on any bridge, database, Riverpod, router ordart:ioimport, so the handler cannot grow into a second writer.channel_id: mostro_notifications; if the app never creates it, Android renders the push on a default channel and a user who muted it silences every trade update. The app now creates it at startup with high importance, before asking for the permission. A test checks the id against the spec's payload.resync().navigateseam keeps it testable.Why the three tasks share a PR: ~150 lines of Dart that only make sense together; the handler rule is the reviewable content.
Test plan
flutter analyzeclean; fullflutter test,cargo testandcargo clippypassed in the pre-commit hook.flutter_local_notifications ^17.2.3creates the channel withAndroidNotificationChannel; the API is unchanged in 19, so no bump was needed (§14 item 9).Manual testing
./scripts/frb-generate.shandflutter pub get, thenflutter run -d android, grant the permission, and hold one open trade taken from a second client.[lifecycle] a push woke the appand[lifecycle] resync: online=true …, and the trade's new status in My Trades without pull-to-refresh.[push] foreground nudge: online=trueif the pool had not reconnected yet, and no OS notification.a push woke the appline and one resync.Summary by CodeRabbit
New Features
Bug Fixes