fix(alarms): harden native alarm lifecycle

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

@@ -222,6 +222,7 @@ class AlarmScheduler(private val context: Context) {
     fun onAlarmFired(id: String) {
         val spec = readSpec(id) ?: return
         val firedAt = spec.snoozeOriginMillis ?: spec.triggerAtMillis
+        saveHandledOccurrence(id, firedAt)
         val next = spec.copy(
             snoozeUntilMillis = null,
             snoozeOriginMillis = null,
@@ -288,6 +289,7 @@ class AlarmScheduler(private val context: Context) {
     fun cancelAlarm(id: String) {
         Log.d(tag, "alarm.cancel id=$id")
         removeScheduledAlarm(id)
+        removeHandledOccurrence(id)
         cancelPending("fire", pendingFireIntent(id, PendingIntent.FLAG_NO_CREATE))
         cancelPending("show", pendingShowIntent(id, PendingIntent.FLAG_NO_CREATE))
         cancelPending("preNotice", pendingPreNoticeIntent(id, PendingIntent.FLAG_NO_CREATE))
@@ -325,6 +327,18 @@ class AlarmScheduler(private val context: Context) {
     fun pendingAlarmCount(): Int =
         prefs().getStringSet(KEY_IDS, emptySet()).orEmpty().size
 
+    fun handledOccurrences(): List<Map<String, Any>> =
+        prefs().getStringSet(KEY_HANDLED_IDS, emptySet()).orEmpty()
+            .mapNotNull { id ->
+                val handledAt = prefs().getLong("$KEY_HANDLED_PREFIX$id", 0L)
+                    .takeIf { it > 0L }
+                    ?: return@mapNotNull null
+                mapOf(
+                    "alarmId" to id,
+                    "handledAtMillis" to handledAt
+                )
+            }
+
     private fun preserveNativeSnooze(
         existing: NativeAlarmSpec?,
         requestedTriggerAtMillis: Long,
@@ -438,6 +452,24 @@ class AlarmScheduler(private val context: Context) {
             .apply()
     }
 
+    private fun saveHandledOccurrence(id: String, handledAtMillis: Long) {
+        val ids = prefs().getStringSet(KEY_HANDLED_IDS, emptySet()).orEmpty().toMutableSet()
+        ids.add(id)
+        prefs().edit()
+            .putStringSet(KEY_HANDLED_IDS, ids)
+            .putLong("$KEY_HANDLED_PREFIX$id", handledAtMillis)
+            .apply()
+    }
+
+    private fun removeHandledOccurrence(id: String) {
+        val ids = prefs().getStringSet(KEY_HANDLED_IDS, emptySet()).orEmpty().toMutableSet()
+        ids.remove(id)
+        prefs().edit()
+            .putStringSet(KEY_HANDLED_IDS, ids)
+            .remove("$KEY_HANDLED_PREFIX$id")
+            .apply()
+    }
+
     private fun prefs() =
         appContext.createDeviceProtectedStorageContext()
             .getSharedPreferences(PREFS, Context.MODE_PRIVATE)
@@ -619,6 +651,8 @@ class AlarmScheduler(private val context: Context) {
         private const val PREFS = "pluriwave_alarm_scheduler"
         private const val KEY_IDS = "scheduled_alarm_ids"
         private const val KEY_ALARM_PREFIX = "scheduled_alarm_"
+        private const val KEY_HANDLED_IDS = "handled_alarm_ids"
+        private const val KEY_HANDLED_PREFIX = "handled_alarm_"
         private const val PRE_NOTICE_MILLIS = 30 * 60 * 1000L
         private const val SCHEDULE_UNICA = "unica"
         private const val SCHEDULE_DIAS_SEMANA = "diasSemana"

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

@@ -178,6 +178,10 @@ class MainActivity : AudioServiceActivity() {
                     result.success(payload)
                     intent?.removeExtra(PluriWaveAlarmReceiver.EXTRA_ALARM_ACTION)
                 }
+                "getHandledAlarmOccurrences" -> {
+                    Log.d(tag, "alarm.channel getHandledAlarmOccurrences")
+                    result.success(alarmScheduler.handledOccurrences())
+                }
                 else -> result.notImplemented()
             }
         }

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

@@ -112,11 +112,13 @@ class PluriWaveAlarmReceiver : BroadcastReceiver() {
             .setContentText(title)
             .setCategory(NotificationCompat.CATEGORY_ALARM)
             .setPriority(NotificationCompat.PRIORITY_MAX)
+            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             .setOngoing(true)
             .setAutoCancel(false)
             .setContentIntent(fullScreenIntent)
             .setFullScreenIntent(fullScreenIntent, true)
             .addAction(0, "Posponer $snoozeMinutes min", snoozePendingIntent(context, alarmId, snoozeMinutes))
+            .addAction(0, "Detener", stopPendingIntent(context, alarmId))
             .build()
 
         try {
@@ -250,6 +252,17 @@ class PluriWaveAlarmReceiver : BroadcastReceiver() {
             PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
         )
 
+    private fun stopPendingIntent(context: Context, alarmId: String): PendingIntent =
+        PendingIntent.getService(
+            context,
+            requestCode(alarmId, 40),
+            Intent(context, PluriWaveAlarmService::class.java).apply {
+                action = PluriWaveAlarmService.ACTION_STOP
+                putExtra(EXTRA_ALARM_ID, alarmId)
+            },
+            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
+        )
+
     companion object {
         const val TAG = "PluriWave"
         const val CHANNEL_ID = "pluriwave_alarm_pre_notice"

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

@@ -8,6 +8,7 @@ import android.content.Context
 import android.content.Intent
 import android.media.AudioAttributes
 import android.media.MediaPlayer
+import android.net.Uri
 import android.os.Build
 import android.os.Handler
 import android.os.IBinder
@@ -119,7 +120,11 @@ class PluriWaveAlarmService : Service() {
                 setAudioAttributes(alarmAudioAttributes())
                 isLooping = false
                 setVolume(volume, volume)
-                setDataSource(stationUrl)
+                setDataSource(
+                    this@PluriWaveAlarmService,
+                    Uri.parse(stationUrl),
+                    mapOf("User-Agent" to "PluriWave/0.1.0 (native alarm)")
+                )
                 setOnPreparedListener {
                     if (activeAlarmId != alarmId) return@setOnPreparedListener
                     cancelStationFallback()
@@ -256,6 +261,7 @@ class PluriWaveAlarmService : Service() {
             )
             .setCategory(NotificationCompat.CATEGORY_ALARM)
             .setPriority(NotificationCompat.PRIORITY_MAX)
+            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             .setOngoing(true)
             .setAutoCancel(false)
             .setFullScreenIntent(openAlarmPendingIntent(alarmId, title, snoozeMinutes), true)
@@ -367,7 +373,7 @@ class PluriWaveAlarmService : Service() {
         private const val TAG = "PluriWave"
         private const val CHANNEL_ID = "pluriwave_alarm_native"
         private const val NOTIFICATION_ID = 92841
-        private const val ACTION_STOP = "es.freetimelab.pluriwave.alarm.STOP_NATIVE"
+        const val ACTION_STOP = "es.freetimelab.pluriwave.alarm.STOP_NATIVE"
         const val ACTION_SNOOZE = "es.freetimelab.pluriwave.alarm.SNOOZE_NATIVE"
         const val EXTRA_SNOOZE_MINUTES = "snoozeMinutes"
         private const val STATION_START_TIMEOUT_MILLIS = 15_000L
@@ -392,10 +398,15 @@ class PluriWaveAlarmService : Service() {
                 putExtra(PluriWaveAlarmReceiver.EXTRA_ALARM_ID, alarmId)
             }
             try {
-                context.stopService(intent)
-                Log.d(TAG, "alarm.service stop requested id=$alarmId")
+                context.startService(intent)
+                Log.d(TAG, "alarm.service stop action requested id=$alarmId")
             } catch (error: Throwable) {
                 Log.e(TAG, "alarm.service stop request failed id=$alarmId", error)
+                try {
+                    context.stopService(intent)
+                } catch (fallbackError: Throwable) {
+                    Log.e(TAG, "alarm.service stop fallback failed id=$alarmId", fallbackError)
+                }
             }
         }