§1 notif banner: permission_handler v11 returns granted unconditionally
for Permission.notification on Android <13 because POST_NOTIFICATIONS
didn't exist as a runtime permission. Result: SHome1st amber "notifikasi
off" banner never showed on API 24-32 even when the user toggled
notifications off in Settings → Apps. Add a
NotificationManagerCompat.areNotificationsEnabled() pre-check via
flutter_local_notifications (works from API 19+) so the banner reflects
the real OS state on older Android.
§5 chat delivery: the contract is "WS when foreground, FCM when
background", but the previous build only honoured (1) — Android keeps
the TCP socket alive after the Dart isolate is paused, so backend's
`socket.readyState === 1` check returned true and FCM never fired.
Fix has five parts (all required together):
1. Customer-side lifecycle observer in client_app/main.dart closes
chatProvider's WS on paused/detached, reconnects on resumed.
2. `_appPaused` gate in main.dart suppresses the activeSessionProvider
listener's auto-reconnect (15s poll in active_session_notifier
would otherwise re-open the WS the next tick after the observer
closed it — defeating the fallback).
3. Mitra-side lifecycle observer in mitra_app/main.dart stashes
`_pausedChatSessionId`, calls mitraChatProvider.disconnect(), and
re-issues connect(saved) on resumed.
4. MitraChat gains a `_connectedSessionId` field + getter so the
observer in step 3 can read it back across disconnect (disconnect
clears it; the next connect overwrites it).
5. SearchingScreen resets pairingProvider when entering with a new
draft.paymentId — previously it retained PairingActiveData with
the *old* sessionId after a session ended, and the next pairing
flow navigated straight to that completed session showing
"Sesi sudah berakhir".
Backend additions under /internal/_test/* for assertion harness:
inspectSessionWsState + GET /ws-connection-state,
POST /send-chat-message-as-mitra (with delivered_via),
POST /send-chat-message-as-customer (with delivered_via),
POST /send-fcm-chat-message (raw FCM dispatch).
Maestro coverage:
- ts-customer-05-01: mitra → customer message when customer is
backgrounded → delivered_via=fcm.
- ts-customer-05-02: customer → mitra message when mitra is
backgrounded → delivered_via=fcm.
- ts-customer-01-01: §1 notif-denied banner on home. Documented
precondition: mitra must be force-stopped or backgrounded on the
chat screen before 05-02 runs (Maestro can only drive one --udid
per run; mitra-side lifecycle observer end-to-end is deferred).
Helper scripts under client_app/.maestro/scripts/:
inspect_ws_state.js, assert_ws_state.js,
send_chat_message_as_mitra.js, assert_delivered_via.js (takes
SENDER=mitra|customer to route to the matching backend endpoint).
README_section_05.md documents the test plan, helper scripts, and the
deferred mitra-side maestro driving. Both apps tested manually on
API 28 AVDs where FCM delivery is sub-second; API 24 has 5-30 min
heartbeats that make it impractical for FCM-related testing.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Ramadhan Sjamsani
ad02ee252d