feat(system): update dnd status while running the timer

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

@@ -18,6 +18,7 @@
 package org.nsh07.pomodoro.service
 
 import android.annotation.SuppressLint
+import android.app.NotificationManager
 import android.app.Service
 import android.content.Intent
 import android.media.AudioAttributes
@@ -106,6 +107,7 @@ class TimerService : Service() {
         runBlocking {
             job.cancel()
             saveTimeToDb()
+            setDoNotDisturb(false)
             notificationManager.cancel(1)
             alarm?.release()
         }
@@ -140,6 +142,7 @@ class TimerService : Service() {
         updateProgressSegments()
 
         if (timerState.value.timerRunning) {
+            setDoNotDisturb(false)
             notificationBuilder.clearActions().addTimerActions(
                 this, R.drawable.play, getString(R.string.start)
             )
@@ -149,6 +152,8 @@ class TimerService : Service() {
             }
             pauseTime = SystemClock.elapsedRealtime()
         } else {
+            if (timerState.value.timerMode == TimerMode.FOCUS) setDoNotDisturb(true)
+            else setDoNotDisturb(false)
             notificationBuilder.clearActions().addTimerActions(
                 this, R.drawable.pause, getString(R.string.stop)
             )
@@ -337,6 +342,7 @@ class TimerService : Service() {
             cycles = (cycles + 1) % (timerRepository.sessionLength * 2)
 
             if (cycles % 2 == 0) {
+                if (timerState.value.timerRunning) setDoNotDisturb(true)
                 time = timerRepository.focusTime
                 _timerState.update { currentState ->
                     currentState.copy(
@@ -354,6 +360,7 @@ class TimerService : Service() {
                     )
                 }
             } else {
+                if (timerState.value.timerRunning) setDoNotDisturb(false)
                 val long = cycles == (timerRepository.sessionLength * 2) - 1
                 time = if (long) timerRepository.longBreakTime else timerRepository.shortBreakTime
 
@@ -441,7 +448,15 @@ class TimerService : Service() {
         }
     }
 
-    fun updateAlarmTone() {
+    private fun setDoNotDisturb(doNotDisturb: Boolean) {
+        if (notificationManagerService.isNotificationPolicyAccessGranted()) {
+            if (doNotDisturb) {
+                notificationManagerService.setInterruptionFilter(NotificationManager.INTERRUPTION_FILTER_ALARMS)
+            } else notificationManagerService.setInterruptionFilter(NotificationManager.INTERRUPTION_FILTER_ALL)
+        }
+    }
+
+    private fun updateAlarmTone() {
         alarm?.release()
         alarm = initializeMediaPlayer()
     }

app/src/main/java/org/nsh07/pomodoro/ui/timerScreen/TimerScreen.kt

@@ -1,8 +1,18 @@
 /*
  * Copyright (c) 2025 Nishant Mishra
  *
- * You should have received a copy of the GNU General Public License
+ * This file is part of Tomato - a minimalist pomodoro timer for Android.
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * Tomato is free software: you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License as published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Tomato is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Tomato.
+ * If not, see <https://www.gnu.org/licenses/>.
  */
 
 package org.nsh07.pomodoro.ui.timerScreen
@@ -92,6 +102,7 @@ import org.nsh07.pomodoro.ui.timerScreen.viewModel.TimerAction
 import org.nsh07.pomodoro.ui.timerScreen.viewModel.TimerMode
 import org.nsh07.pomodoro.ui.timerScreen.viewModel.TimerState
 
+
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun SharedTransitionScope.TimerScreen(