feat(alarm): automatically stop alarm after 1 min

Closes: #88

app/src/main/java/org/nsh07/pomodoro/MainActivity.kt

@@ -45,10 +45,12 @@ class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
+
         appContainer.activityTurnScreenOn = {
             setShowWhenLocked(it)
             setTurnScreenOn(it)
         }
+
         setContent {
             val preferencesState by settingsViewModel.preferencesState.collectAsStateWithLifecycle()
 

app/src/main/java/org/nsh07/pomodoro/service/TimerService.kt

@@ -33,6 +33,7 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.asStateFlow
@@ -71,9 +72,11 @@ class TimerService : Service() {
     private var pauseDuration = 0L
 
     private var job = SupervisorJob()
-    private val scope = CoroutineScope(Dispatchers.IO + job)
+    private val timerScope = CoroutineScope(Dispatchers.IO + job)
     private val skipScope = CoroutineScope(Dispatchers.IO + job)
 
+    private var autoAlarmStopScope: Job? = null
+
     private var alarm: MediaPlayer? = null
     private val vibrator by lazy {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
@@ -154,7 +157,7 @@ class TimerService : Service() {
 
             var iterations = -1
 
-            scope.launch {
+            timerScope.launch {
                 while (true) {
                     if (!timerState.value.timerRunning) break
                     if (startTime == 0L) startTime = SystemClock.elapsedRealtime()
@@ -372,6 +375,11 @@ class TimerService : Service() {
 
         appContainer.activityTurnScreenOn(true)
 
+        autoAlarmStopScope = CoroutineScope(Dispatchers.IO).launch {
+            delay(1 * 60 * 1000)
+            stopAlarm()
+        }
+
         if (timerRepository.vibrateEnabled) {
             if (!vibrator.hasVibrator()) {
                 return
@@ -384,6 +392,8 @@ class TimerService : Service() {
     }
 
     fun stopAlarm() {
+        autoAlarmStopScope?.cancel()
+
         if (timerRepository.alarmEnabled) {
             alarm?.pause()
             alarm?.seekTo(0)