feat(alarmas): surface the three native scheduling failures in Dart

Completes the bridge the native side already exposed. AlarmScheduler and
PluriWaveAlarmService record a pre-notice that could not be armed, a
refused foreground-service start, and a per-alarm reschedule that failed
after a reboot -- but nothing read them, so all three still ended at
logcat.

EstadoAlarmas now drains them at startup and turns each into a per-alarm
exception, which the card already knows how to mark. An alarm that never
reached the OS stops looking identical to one that did.

The read is deliberately tolerant: a failure to read is logged and
swallowed, never surfaced as an alarm error, so a diagnostics gap cannot
masquerade as a scheduling problem.

android/app/src/main/kotlin/es/freetimelab/pluriwave/AlarmScheduler.kt

@@ -202,8 +202,22 @@ class AlarmScheduler(private val context: Context) {
                     )
                 )
                 Log.d(tag, "alarm.schedule preNotice OK id=${spec.id}")
+                NativeSchedulingFailures.clear(
+                    appContext,
+                    spec.id,
+                    NativeSchedulingFailures.TYPE_PRE_NOTICE
+                )
             } catch (_: SecurityException) {
+                // Silent before this fix: the main alarm can still arm via
+                // setAlarmClock (exempt from the exact-alarm permission), so
+                // the alarm itself rings while its 30-minute reminder simply
+                // never appears, with nothing surfaced anywhere but logcat.
                 Log.w(tag, "alarm.schedule preNotice SecurityException id=${spec.id}")
+                NativeSchedulingFailures.record(
+                    appContext,
+                    spec.id,
+                    NativeSchedulingFailures.TYPE_PRE_NOTICE
+                )
             }
         } else if (spec.triggerAtMillis > now) {
             appContext.sendBroadcast(
@@ -846,8 +860,22 @@ class AlarmScheduler(private val context: Context) {
                 // the native recompute inside scheduleSpec.
                 scheduleSpec(spec, persistOnSuccess = true, trustDartTrigger = true)
                 Log.d(tag, "alarm.reschedule OK id=$id")
+                NativeSchedulingFailures.clear(
+                    appContext,
+                    id,
+                    NativeSchedulingFailures.TYPE_RESCHEDULE
+                )
             } catch (error: Throwable) {
+                // Silent before this fix: one alarm's reschedule failure used
+                // to just log and move to the next id, leaving that ONE
+                // alarm unscheduled after a reboot/unlock/app-update with no
+                // signal anywhere but logcat.
                 Log.e(tag, "alarm.reschedule failed id=$id", error)
+                NativeSchedulingFailures.record(
+                    appContext,
+                    id,
+                    NativeSchedulingFailures.TYPE_RESCHEDULE
+                )
             }
         }
     }
@@ -855,6 +883,18 @@ class AlarmScheduler(private val context: Context) {
     fun pendingAlarmCount(): Int =
         prefs().getStringSet(KEY_IDS, emptySet()).orEmpty().size
 
+    /**
+     * Scheduling-reliability failures the native side recorded on its own
+     * (fix/alarmas-fallos-silenciosos, item 2): pre-notice, foreground-
+     * service start, and post-boot/unlock reschedule failures never go
+     * through a Dart method-channel call that could throw, so they are
+     * persisted here instead and synced by Flutter on the next app launch
+     * -- mirroring [handledOccurrences]/[nativeSnoozeStates]'s own
+     * cold-start-sync shape.
+     */
+    fun scheduleFailures(): List<Map<String, Any>> =
+        NativeSchedulingFailures.all(appContext)
+
     fun handledOccurrences(): List<Map<String, Any>> =
         prefs().getStringSet(KEY_HANDLED_IDS, emptySet()).orEmpty()
             .mapNotNull { id ->
@@ -1265,3 +1305,91 @@ class AlarmScheduler(private val context: Context) {
 
 private fun JSONObject.optNullableLong(name: String): Long? =
     if (has(name) && !isNull(name)) optLong(name) else null
+
+/**
+ * Persisted store for scheduling-reliability failures the native side
+ * catches and previously only logged (fix/alarmas-fallos-silenciosos, item
+ * 2): the pre-notice `SecurityException` (AlarmScheduler.schedulePreNotice),
+ * a refused foreground-service start (PluriWaveAlarmService.start), and a
+ * per-alarm reschedule failure after boot/unlock
+ * (AlarmScheduler.reschedulePersistedAlarms). A separate top-level object
+ * (not nested in [AlarmScheduler]'s own instance state) so
+ * [PluriWaveAlarmService]'s companion object -- which has no [AlarmScheduler]
+ * instance of its own -- can record a failure too, using the exact same
+ * [Context]-scoped, device-protected-storage `SharedPreferences` file
+ * [AlarmScheduler] itself reads/writes (same `PREFS` name, kept in sync by
+ * hand since Kotlin constants cannot be shared across files without a third
+ * file).
+ *
+ * Only the LATEST failure per alarm is kept (mirrors the Dart-side
+ * `ExcepcionAlarma` "latest wins" semantics) -- this is a reliability
+ * signal, not an audit log.
+ */
+object NativeSchedulingFailures {
+    private const val PREFS = "pluriwave_alarm_scheduler"
+    private const val KEY_FAILURE_IDS = "schedule_failure_alarm_ids"
+    private const val KEY_FAILURE_TYPE_PREFIX = "schedule_failure_type_"
+    private const val KEY_FAILURE_AT_PREFIX = "schedule_failure_at_"
+
+    /** Mirrors Dart's `ExcepcionAlarma.tipoFalloPreaviso`. */
+    const val TYPE_PRE_NOTICE = "preNoticeFailed"
+
+    /** Mirrors Dart's `ExcepcionAlarma.tipoFalloServicioSonido`. */
+    const val TYPE_FOREGROUND_SERVICE = "foregroundServiceFailed"
+
+    /** Mirrors Dart's `ExcepcionAlarma.tipoFalloReprogramacionArranque`. */
+    const val TYPE_RESCHEDULE = "rescheduleAfterBootFailed"
+
+    private fun prefs(context: Context) =
+        context.applicationContext.createDeviceProtectedStorageContext()
+            .getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+
+    fun record(context: Context, id: String, type: String) {
+        if (id.isBlank()) return
+        val store = prefs(context)
+        val ids = store.getStringSet(KEY_FAILURE_IDS, emptySet()).orEmpty().toMutableSet()
+        ids.add(id)
+        store.edit()
+            .putStringSet(KEY_FAILURE_IDS, ids)
+            .putString("$KEY_FAILURE_TYPE_PREFIX$id", type)
+            .putLong("$KEY_FAILURE_AT_PREFIX$id", System.currentTimeMillis())
+            .apply()
+        Log.w("PluriWave", "alarm.scheduleFailure recorded id=$id type=$type")
+    }
+
+    /**
+     * Clears the failure recorded for [id] ONLY when its current type is
+     * [type] -- type-scoped on purpose (mirrors the Dart-side
+     * `limpiarFalloProgramacion`), so a foreground-service success never
+     * erases an unrelated, still-outstanding pre-notice failure for the
+     * same alarm.
+     */
+    fun clear(context: Context, id: String, type: String) {
+        val store = prefs(context)
+        val storedType = store.getString("$KEY_FAILURE_TYPE_PREFIX$id", null)
+        if (storedType != type) return
+        val ids = store.getStringSet(KEY_FAILURE_IDS, emptySet()).orEmpty().toMutableSet()
+        if (!ids.remove(id)) return
+        store.edit()
+            .putStringSet(KEY_FAILURE_IDS, ids)
+            .remove("$KEY_FAILURE_TYPE_PREFIX$id")
+            .remove("$KEY_FAILURE_AT_PREFIX$id")
+            .apply()
+    }
+
+    fun all(context: Context): List<Map<String, Any>> {
+        val store = prefs(context)
+        return store.getStringSet(KEY_FAILURE_IDS, emptySet()).orEmpty().mapNotNull { id ->
+            val type = store.getString("$KEY_FAILURE_TYPE_PREFIX$id", null)
+                ?: return@mapNotNull null
+            val at = store.getLong("$KEY_FAILURE_AT_PREFIX$id", 0L)
+                .takeIf { it > 0L }
+                ?: return@mapNotNull null
+            mapOf(
+                "alarmId" to id,
+                "type" to type,
+                "atMillis" to at
+            )
+        }
+    }
+}

android/app/src/main/kotlin/es/freetimelab/pluriwave/MainActivity.kt

@@ -250,6 +250,10 @@ class MainActivity : AudioServiceActivity() {
                     Log.d(tag, "alarm.channel getNativeSnoozeState")
                     result.success(alarmScheduler.nativeSnoozeStates())
                 }
+                "getNativeSchedulingFailures" -> {
+                    Log.d(tag, "alarm.channel getNativeSchedulingFailures")
+                    result.success(alarmScheduler.scheduleFailures())
+                }
                 "setNotificationStrings" -> {
                     val args = call.arguments as? Map<*, *>
                     if (args != null) {

android/app/src/main/kotlin/es/freetimelab/pluriwave/PluriWaveAlarmService.kt

@@ -183,7 +183,16 @@ class PluriWaveAlarmService : Service() {
                 startForeground(NOTIFICATION_ID, notification)
             }
         } catch (error: Throwable) {
+            // Silent before this fix: same user-visible symptom as a refused
+            // startForegroundService (the ring never actually starts) --
+            // recorded under the SAME tipo so the alarms list surfaces it
+            // regardless of which of the two calls the OS refused.
             Log.e(TAG, "alarm.service startForeground failed id=$alarmId", error)
+            NativeSchedulingFailures.record(
+                this,
+                alarmId,
+                NativeSchedulingFailures.TYPE_FOREGROUND_SERVICE
+            )
             releaseWakeLock()
             // Second documented clear site (feedback item, READ-5): this
             // branch never reaches stopEverything(), so without the same
@@ -197,6 +206,11 @@ class PluriWaveAlarmService : Service() {
             stopSelf()
             return
         }
+        NativeSchedulingFailures.clear(
+            this,
+            alarmId,
+            NativeSchedulingFailures.TYPE_FOREGROUND_SERVICE
+        )
         startAudio(
             alarmId,
             stationName,
@@ -754,6 +768,7 @@ class PluriWaveAlarmService : Service() {
 
         fun start(context: Context, source: Intent) {
             ensureChannel(context)
+            val alarmId = source.getStringExtra(PluriWaveAlarmReceiver.EXTRA_ALARM_ID)
             val intent = Intent(context, PluriWaveAlarmService::class.java).apply {
                 action = PluriWaveAlarmReceiver.ACTION_FIRE
                 putExtras(source)
@@ -761,8 +776,27 @@ class PluriWaveAlarmService : Service() {
             try {
                 ContextCompat.startForegroundService(context, intent)
                 Log.d(TAG, "alarm.service start requested")
+                if (!alarmId.isNullOrBlank()) {
+                    NativeSchedulingFailures.clear(
+                        context,
+                        alarmId,
+                        NativeSchedulingFailures.TYPE_FOREGROUND_SERVICE
+                    )
+                }
             } catch (error: Throwable) {
+                // Silent before this fix: a fire-and-forget call from the
+                // receiver's ACTION_FIRE branch -- if the OS refuses the
+                // foreground-service start (background-restricted app), the
+                // ring never happens and nothing surfaced it anywhere but
+                // logcat, "as if there were no alarm at all".
                 Log.e(TAG, "alarm.service start failed", error)
+                if (!alarmId.isNullOrBlank()) {
+                    NativeSchedulingFailures.record(
+                        context,
+                        alarmId,
+                        NativeSchedulingFailures.TYPE_FOREGROUND_SERVICE
+                    )
+                }
             }
         }
 

lib/estado/estado_alarmas.dart

@@ -90,6 +90,7 @@ class EstadoAlarmas extends ChangeNotifier {
       );
       await _sincronizarTodas();
       await cargarDiagnostico();
+      await cargarFallosNativos();
       _activarRefresco();
     } catch (e) {
       _error = 'No se pudieron cargar las alarmas: $e';
@@ -228,10 +229,22 @@ class EstadoAlarmas extends ChangeNotifier {
 
   /// Clears a previously recorded scheduling failure once a later attempt
   /// for the same alarm succeeds (D5-style recovery, mirroring how [_error]
-  /// itself already clears on a successful retry).
+  /// itself already clears on a successful retry). Type-scoped: a
+  /// successful `android.programar` call only proves the MAIN alarm
+  /// registration (and, transitively, that any stale post-boot reschedule
+  /// failure no longer applies) -- it says nothing about the pre-notice or
+  /// foreground-service subsystems, so those are left untouched here.
   Future<void> _limpiarFalloProgramacion(String alarmaId) async {
     try {
-      final config = await servicio.limpiarFalloProgramacion(alarmaId);
+      var config = await servicio.limpiarFalloProgramacion(
+        alarmaId,
+        ExcepcionAlarma.tipoFalloProgramacion,
+      );
+      _aplicar(config);
+      config = await servicio.limpiarFalloProgramacion(
+        alarmaId,
+        ExcepcionAlarma.tipoFalloReprogramacionArranque,
+      );
       _aplicar(config);
     } catch (e) {
       debugPrint('[PluriWave][alarmas] limpiar fallo programacion ERROR $e');
@@ -525,6 +538,39 @@ class EstadoAlarmas extends ChangeNotifier {
     notifyListeners();
   }
 
+  /// Drains the failures the NATIVE side recorded on its own and turns each
+  /// into a per-alarm exception, so the card can mark it.
+  ///
+  /// These three paths used to log to logcat and stop there: a pre-notice
+  /// that could not be armed, a refused foreground-service start when the
+  /// alarm should have rung, and a per-alarm reschedule that failed after a
+  /// reboot. None of them run inside a Dart call, so nothing on this side
+  /// ever learned they happened — an alarm could sit switched on in the
+  /// list having never reached the OS. Reading them at startup is what
+  /// makes the reported "as if there were no alarm" visible.
+  ///
+  /// Deliberately tolerant: a failed read is logged and swallowed, never
+  /// surfaced as an alarm error, because a diagnostics gap must not look
+  /// like a scheduling problem.
+  Future<void> cargarFallosNativos() async {
+    try {
+      final fallos = await android.fallosNativosProgramacion();
+      for (final fallo in fallos) {
+        final alarmaId = fallo['alarmaId'] as String?;
+        final tipo = fallo['tipo'] as String?;
+        if (alarmaId == null || tipo == null) continue;
+        await _registrarFalloProgramacion(alarmaId, tipo: tipo);
+      }
+      if (fallos.isNotEmpty) {
+        debugPrint(
+          '[PluriWave][alarmas] fallos nativos recogidos=${fallos.length}',
+        );
+      }
+    } catch (e) {
+      debugPrint('[PluriWave][alarmas] cargar fallos nativos ERROR $e');
+    }
+  }
+
   /// Records a snooze the native layer performed by itself (Decision 2.1).
   /// The native scheduler already re-registered setAlarmClock, so this only
   /// persists the canonical state — it MUST NOT call android.programar again.
@@ -624,6 +670,60 @@ class EstadoAlarmas extends ChangeNotifier {
       debugPrint('[PluriWave][alarmas] sincronizar nativas ERROR $e');
     }
     await _importarSnoozesNativosActivos();
+    await _importarFallosProgramacionNativos();
+  }
+
+  /// Cold-start sync (fix/alarmas-fallos-silenciosos, item 2): imports
+  /// scheduling-reliability failures the NATIVE side recorded on its own --
+  /// a pre-notice `SecurityException`, a refused foreground-service start,
+  /// or a per-alarm reschedule failure after boot/unlock -- none of which
+  /// ever go through a Dart method-channel call that could throw. Without
+  /// this sync, these three failures stayed invisible forever (only
+  /// logcat), even after this app-launch fix reads them.
+  Future<void> _importarFallosProgramacionNativos() async {
+    try {
+      final fallos = await android.obtenerFallosProgramacionNativos();
+      final reportadoPorAlarma = {
+        for (final fallo in fallos) fallo.alarmaId: fallo,
+      };
+      // Reconcile stale copies: the native side clears its OWN record the
+      // next time that specific subsystem succeeds (pre-notice/foreground-
+      // service), so an alarm previously imported with one of those tipos
+      // that is no longer reported here means it already recovered --
+      // without this, the card would keep showing a problem that fixed
+      // itself. `tipoFalloProgramacion`/`tipoFalloReprogramacionArranque`
+      // are NOT reconciled here -- those already clear on the Dart side's
+      // own successful `android.programar` calls.
+      for (final alarma in _alarmas) {
+        final actual = ultimaExcepcionPara(alarma.id);
+        final esTipoReconciliable =
+            actual != null &&
+            (actual.tipo == ExcepcionAlarma.tipoFalloPreaviso ||
+                actual.tipo == ExcepcionAlarma.tipoFalloServicioSonido);
+        if (esTipoReconciliable && !reportadoPorAlarma.containsKey(alarma.id)) {
+          final config = await servicio.limpiarFalloProgramacion(
+            alarma.id,
+            actual.tipo,
+          );
+          _aplicar(config);
+        }
+      }
+      for (final fallo in fallos) {
+        final config = await servicio.registrarFalloProgramacion(
+          fallo.alarmaId,
+          fallo.ocurridoEn,
+          fallo.tipo,
+        );
+        _aplicar(config);
+      }
+      if (fallos.isNotEmpty) {
+        debugPrint(
+          '[PluriWave][alarmas] fallos nativos importados count=${fallos.length}',
+        );
+      }
+    } catch (e) {
+      debugPrint('[PluriWave][alarmas] importar fallos nativos ERROR $e');
+    }
   }
 
   /// Cold-start half of Decision 2.1: imports snoozes the native scheduler

lib/servicios/servicio_alarmas.dart

@@ -378,18 +378,28 @@ class ServicioAlarmas {
     return nuevo;
   });
 
-  /// Clears any outstanding failure record for [alarmaId] (a subsequent
+  /// Clears the outstanding failure record for [alarmaId] ONLY when its
-  /// scheduling attempt succeeded). No-op when there is nothing to clear.
+  /// current tipo is [tipo] (a subsequent attempt of THAT SPECIFIC kind
+  /// succeeded). Type-scoped on purpose: a successful main-alarm schedule
+  /// call proves nothing about the pre-notice or foreground-service
+  /// subsystems, so it must never clear a failure recorded for those. No-op
+  /// when there is nothing to clear or the recorded tipo does not match.
   Future<ConfiguracionAlarmas> limpiarFalloProgramacion(
     String alarmaId,
+    String tipo,
   ) => _enCola(() async {
     final config = await _configActual();
-    final sinFallo = _sinFalloPrevio(config.excepciones, alarmaId);
+    final actual = config.excepciones.where((e) => e.alarmaId == alarmaId);
-    if (sinFallo.length == config.excepciones.length) return config;
+    final tieneEseTipo = actual.any((e) => e.tipo == tipo);
+    if (!tieneEseTipo) return config;
+    final excepciones =
+        config.excepciones
+            .where((e) => !(e.alarmaId == alarmaId && e.tipo == tipo))
+            .toList();
     final nuevo = ConfiguracionAlarmas(
       alarmas: config.alarmas,
       vacaciones: config.vacaciones,
-      excepciones: sinFallo,
+      excepciones: excepciones,
     );
     await _guardar(nuevo);
     return nuevo;
@@ -398,7 +408,8 @@ class ServicioAlarmas {
   List<ExcepcionAlarma> _sinFalloPrevio(
     List<ExcepcionAlarma> excepciones,
     String alarmaId,
-  ) => excepciones
+  ) =>
+      excepciones
           .where(
             (e) =>
                 !(e.alarmaId == alarmaId &&

lib/servicios/servicio_alarmas_android.dart

@@ -161,6 +161,35 @@ class EjecucionAlarmaNativa {
   }
 }
 
+/// A scheduling-reliability failure the NATIVE side recorded on its own
+/// (fix/alarmas-fallos-silenciosos, item 2): the pre-notice reminder, the
+/// ringing foreground service, and a post-boot/unlock reschedule can each
+/// fail without ever going through a Dart method-channel call that could
+/// throw -- the native scheduler persists these instead (mirroring how
+/// handled occurrences and snooze state already survive a killed engine),
+/// and this is the cold-start sync so the Dart side finds out at all.
+class FalloProgramacionNativo {
+  const FalloProgramacionNativo({
+    required this.alarmaId,
+    required this.tipo,
+    required this.ocurridoEn,
+  });
+
+  final String alarmaId;
+  final String tipo;
+  final DateTime ocurridoEn;
+
+  factory FalloProgramacionNativo.fromMap(Map<Object?, Object?> map) {
+    return FalloProgramacionNativo(
+      alarmaId: map['alarmId'] as String? ?? '',
+      tipo: map['type'] as String? ?? '',
+      ocurridoEn: DateTime.fromMillisecondsSinceEpoch(
+        (map['atMillis'] as num?)?.toInt() ?? 0,
+      ),
+    );
+  }
+}
+
 abstract class PuertoAlarmasAndroid {
   Stream<EventoAlarmaAndroid> get eventosAlarma;
 
@@ -170,6 +199,17 @@ abstract class PuertoAlarmasAndroid {
 
   Future<void> programar(AlarmaMusical alarma);
   Future<void> cancelar(String alarmaId);
+
+  /// Failures the NATIVE side recorded on its own, outside any Dart call:
+  /// a pre-notice that could not be armed, a refused foreground-service
+  /// start when the alarm should have rung, and a per-alarm reschedule that
+  /// failed after a reboot. Each entry carries the alarm id and one of
+  /// [ExcepcionAlarma]'s `tipoFallo*` constants.
+  ///
+  /// Before this existed every one of those paths logged to logcat and
+  /// stopped there, so an alarm could sit switched on in the list having
+  /// never reached the OS at all — the user's "as if there were no alarm".
+  Future<List<Map<String, Object?>>> fallosNativosProgramacion();
   Future<void> ocultarNotificacionAlarma(String alarmaId);
 
   /// Notification-only dismissal (RES-1): hides the fire notification for
@@ -203,6 +243,11 @@ abstract class PuertoAlarmasAndroid {
   Future<EventoAlarmaAndroid?> obtenerEventoInicial();
   Future<List<EjecucionAlarmaNativa>> obtenerEjecucionesNativasGestionadas();
   Future<List<EstadoSnoozeNativo>> obtenerEstadoSnoozeNativo();
+
+  /// Scheduling-reliability failures the native side recorded on its own
+  /// (pre-notice, foreground-service start, or post-boot reschedule) since
+  /// the last sync.
+  Future<List<FalloProgramacionNativo>> obtenerFallosProgramacionNativos();
 }
 
 class ServicioAlarmasAndroid implements PuertoAlarmasAndroid {
@@ -393,6 +438,25 @@ class ServicioAlarmasAndroid implements PuertoAlarmasAndroid {
     }
   }
 
+  @override
+  Future<List<Map<String, Object?>>> fallosNativosProgramacion() async {
+    try {
+      final raw = await _channel.invokeMethod<List<Object?>>(
+        'getNativeSchedulingFailures',
+      );
+      if (raw == null) return const [];
+      return raw
+          .whereType<Map<Object?, Object?>>()
+          .map((m) => m.map((k, v) => MapEntry(k.toString(), v)))
+          .toList();
+    } catch (e) {
+      // Never let a diagnostics read break alarm handling: an older build
+      // of the native side simply has no such channel method.
+      debugPrint('[PluriWave][alarmas] fallosNativosProgramacion ERROR $e');
+      return const [];
+    }
+  }
+
   @override
   Future<bool> solicitarPermisoAlarmasExactas() async {
     final abierto = await _channel.invokeMethod<bool>(
@@ -494,6 +558,20 @@ class ServicioAlarmasAndroid implements PuertoAlarmasAndroid {
         .toList();
   }
 
+  @override
+  Future<List<FalloProgramacionNativo>>
+  obtenerFallosProgramacionNativos() async {
+    final raw = await _channel.invokeMethod<List<Object?>>(
+      'getNativeSchedulingFailures',
+    );
+    if (raw == null || raw.isEmpty) return const [];
+    return raw
+        .whereType<Map<Object?, Object?>>()
+        .map(FalloProgramacionNativo.fromMap)
+        .where((fallo) => fallo.alarmaId.isNotEmpty && fallo.tipo.isNotEmpty)
+        .toList();
+  }
+
   Future<void> _logAndInvokeVoid(String method, Map<String, Object?> args) {
     debugPrint('[PluriWave][alarmas] $method $args');
     return _channel.invokeMethod<void>(method, args);

test/estado/estado_alarmas_fallos_nativos_test.dart

@@ -0,0 +1,106 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/estado/estado_alarmas.dart';
+import 'package:pluriwave/modelos/alarma_musical.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../helpers/fakes_alarmas.dart';
+
+/// The native scheduler records three failures entirely on its own, outside
+/// any Dart call: a pre-notice that could not be armed, a refused
+/// foreground-service start when the alarm should have rung, and a per-alarm
+/// reschedule that failed after a reboot.
+///
+/// Before this wiring existed, all three logged to logcat and stopped there.
+/// The alarm stayed switched on in the list, drawn exactly as if scheduling
+/// had succeeded, and simply never fired — the reported "as if there were no
+/// alarm at all". These tests pin the drain path that makes them visible.
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  late FakePuertoAlarmasAndroid android;
+
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+    android = FakePuertoAlarmasAndroid();
+  });
+
+  EstadoAlarmas crearEstado() =>
+      EstadoAlarmas(android: android, iniciarAutomaticamente: false);
+
+  test('a native pre-notice failure becomes a per-alarm exception', () async {
+    android.fallosNativos = [
+      {'alarmaId': 'a1', 'tipo': ExcepcionAlarma.tipoFalloPreaviso},
+    ];
+    final estado = crearEstado();
+    addTearDown(estado.dispose);
+
+    await estado.cargarFallosNativos();
+
+    final fallo = estado.ultimaExcepcionPara('a1');
+    expect(fallo, isNotNull);
+    expect(fallo!.tipo, ExcepcionAlarma.tipoFalloPreaviso);
+  });
+
+  test(
+    'a refused foreground-service start becomes a per-alarm exception',
+    () async {
+      android.fallosNativos = [
+        {'alarmaId': 'a2', 'tipo': ExcepcionAlarma.tipoFalloServicioSonido},
+      ];
+      final estado = crearEstado();
+      addTearDown(estado.dispose);
+
+      await estado.cargarFallosNativos();
+
+      expect(
+        estado.ultimaExcepcionPara('a2')?.tipo,
+        ExcepcionAlarma.tipoFalloServicioSonido,
+      );
+    },
+  );
+
+  test('only the alarm whose reschedule failed is marked', () async {
+    android.fallosNativos = [
+      {
+        'alarmaId': 'a3',
+        'tipo': ExcepcionAlarma.tipoFalloReprogramacionArranque,
+      },
+    ];
+    final estado = crearEstado();
+    addTearDown(estado.dispose);
+
+    await estado.cargarFallosNativos();
+
+    expect(estado.ultimaExcepcionPara('a3'), isNotNull);
+    expect(
+      estado.ultimaExcepcionPara('a4'),
+      isNull,
+      reason: 'a sibling alarm that scheduled fine must stay unmarked',
+    );
+  });
+
+  test('malformed native entries are skipped without throwing', () async {
+    android.fallosNativos = [
+      {'tipo': ExcepcionAlarma.tipoFalloPreaviso}, // no alarmaId
+      {'alarmaId': 'a5'}, // no tipo
+    ];
+    final estado = crearEstado();
+    addTearDown(estado.dispose);
+
+    await estado.cargarFallosNativos();
+
+    expect(estado.ultimaExcepcionPara('a5'), isNull);
+  });
+
+  test('a failing native read never surfaces as an alarm error', () async {
+    // A diagnostics gap must not look like a scheduling problem: an older
+    // native build simply has no such channel method.
+    android.fallaLecturaFallosNativos = true;
+    final estado = crearEstado();
+    addTearDown(estado.dispose);
+
+    await estado.cargarFallosNativos();
+
+    expect(estado.error, isNull);
+  });
+}

test/estado/estado_alarmas_verificacion_registro_test.dart

@@ -2,6 +2,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:pluriwave/estado/estado_alarmas.dart';
 import 'package:pluriwave/modelos/alarma_musical.dart';
 import 'package:pluriwave/servicios/servicio_alarmas.dart';
+import 'package:pluriwave/servicios/servicio_alarmas_android.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import '../helpers/fakes_alarmas.dart';
@@ -73,4 +74,66 @@ void main() {
     expect(estado.ultimaExcepcionPara('sana1'), isNull);
     expect(estado.error, isNull);
   });
+
+  test(
+    'inicializar importa los fallos nativos (pre-aviso, servicio en primer '
+    'plano, reprogramacion tras arranque) como excepciones por alarma',
+    () async {
+      final android =
+          FakePuertoAlarmasAndroid()
+            ..fallosProgramacionNativos.addAll([
+              FalloProgramacionNativo(
+                alarmaId: 'con-preaviso-roto',
+                tipo: ExcepcionAlarma.tipoFalloPreaviso,
+                ocurridoEn: DateTime(2026, 5, 25, 7),
+              ),
+              FalloProgramacionNativo(
+                alarmaId: 'servicio-rechazado',
+                tipo: ExcepcionAlarma.tipoFalloServicioSonido,
+                ocurridoEn: DateTime(2026, 5, 25, 7),
+              ),
+            ]);
+      final servicio = ServicioAlarmas(
+        reloj: () => DateTime(2026, 5, 25, 7, 30),
+      );
+      await servicio.guardarAlarma(
+        AlarmaMusical(
+          id: 'con-preaviso-roto',
+          nombre: 'Diaria',
+          hora: 7,
+          minuto: 30,
+          tipoProgramacion: TipoProgramacionAlarma.diaria,
+          diasSemana: const [],
+        ),
+      );
+      await servicio.guardarAlarma(
+        AlarmaMusical(
+          id: 'servicio-rechazado',
+          nombre: 'Diaria',
+          hora: 8,
+          minuto: 0,
+          tipoProgramacion: TipoProgramacionAlarma.diaria,
+          diasSemana: const [],
+        ),
+      );
+
+      final estado = EstadoAlarmas(
+        servicio: servicio,
+        android: android,
+        iniciarAutomaticamente: false,
+      );
+      addTearDown(estado.dispose);
+      addTearDown(android.dispose);
+
+      await estado.inicializar();
+
+      final falloPreaviso = estado.ultimaExcepcionPara('con-preaviso-roto');
+      expect(falloPreaviso, isNotNull);
+      expect(falloPreaviso!.tipo, ExcepcionAlarma.tipoFalloPreaviso);
+
+      final falloServicio = estado.ultimaExcepcionPara('servicio-rechazado');
+      expect(falloServicio, isNotNull);
+      expect(falloServicio!.tipo, ExcepcionAlarma.tipoFalloServicioSonido);
+    },
+  );
 }

test/helpers/fakes_alarmas.dart

@@ -14,6 +14,7 @@ class FakePuertoAlarmasAndroid implements PuertoAlarmasAndroid {
   final soloOcultadas = <String>[];
   final ejecucionesNativas = <EjecucionAlarmaNativa>[];
   final snoozesNativos = <EstadoSnoozeNativo>[];
+  final fallosProgramacionNativos = <FalloProgramacionNativo>[];
   final _eventos = StreamController<EventoAlarmaAndroid>.broadcast();
   bool ignoraOptimizacionBateria = true;
   int solicitudesExencionBateria = 0;
@@ -186,9 +187,33 @@ class FakePuertoAlarmasAndroid implements PuertoAlarmasAndroid {
   Future<List<EstadoSnoozeNativo>> obtenerEstadoSnoozeNativo() async =>
       List.of(snoozesNativos);
 
+  @override
+  Future<List<FalloProgramacionNativo>>
+  obtenerFallosProgramacionNativos() async =>
+      List.of(fallosProgramacionNativos);
+
   int solicitudesPermisoAlarmasExactas = 0;
   int solicitudesPermisoPantallaCompleta = 0;
 
+  /// Native-recorded failures the next read should return. Tests seed this
+  /// to simulate a pre-notice that never armed, a refused foreground-service
+  /// start, or a per-alarm reschedule that failed after a reboot.
+  List<Map<String, Object?>> fallosNativos = const [];
+
+  int lecturasFallosNativos = 0;
+
+  /// Simulates an older native build with no such channel method.
+  bool fallaLecturaFallosNativos = false;
+
+  @override
+  Future<List<Map<String, Object?>>> fallosNativosProgramacion() async {
+    lecturasFallosNativos++;
+    if (fallaLecturaFallosNativos) {
+      throw StateError('canal no disponible');
+    }
+    return fallosNativos;
+  }
+
   @override
   Future<bool> solicitarPermisoAlarmasExactas() async {
     solicitudesPermisoAlarmasExactas++;

test/servicios/servicio_alarmas_fallo_programacion_test.dart

@@ -124,11 +124,42 @@ void main() {
       ExcepcionAlarma.tipoFalloProgramacion,
     );
 
-    final config = await servicio.limpiarFalloProgramacion('a1');
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
 
     expect(config.excepciones, isEmpty);
   });
 
+  test('limpiarFalloProgramacion NO limpia un fallo de un tipo distinto '
+      '(cada subsistema se limpia por su cuenta)', () async {
+    final servicio = ServicioAlarmas(reloj: () => DateTime(2026, 5, 25, 7));
+    await servicio.guardarAlarma(
+      AlarmaMusical(
+        id: 'a1',
+        nombre: 'Diaria',
+        hora: 7,
+        minuto: 30,
+        tipoProgramacion: TipoProgramacionAlarma.diaria,
+        diasSemana: const [],
+      ),
+    );
+    await servicio.registrarFalloProgramacion(
+      'a1',
+      DateTime(2026, 5, 25, 7, 30),
+      ExcepcionAlarma.tipoFalloPreaviso,
+    );
+
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
+
+    expect(config.excepciones, hasLength(1));
+    expect(config.excepciones.single.tipo, ExcepcionAlarma.tipoFalloPreaviso);
+  });
+
   test('limpiarFalloProgramacion sin fallo previo no rompe y no persiste '
       'cambios', () async {
     final servicio = ServicioAlarmas(reloj: () => DateTime(2026, 5, 25, 7));
@@ -143,7 +174,10 @@ void main() {
       ),
     );
 
-    final config = await servicio.limpiarFalloProgramacion('a1');
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
 
     expect(config.excepciones, isEmpty);
   });