Ensure exact alarm permission before sending scheduled/delayed messages

data/src/main/java/com/moez/QKSMS/manager/PermissionManagerImpl.kt

@@ -19,6 +19,7 @@
 package com.moez.QKSMS.manager
 
 import android.Manifest
+import android.app.AlarmManager
 import android.app.NotificationManager
 import android.app.role.RoleManager
 import android.content.Context
@@ -71,6 +72,15 @@ class PermissionManagerImpl @Inject constructor(private val context: Context) :
         return hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
     }
 
+    override fun hasExactAlarms(): Boolean {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return true
+        }
+
+        val alarmManager = context.getSystemService(AlarmManager::class.java)
+        return alarmManager.canScheduleExactAlarms()
+    }
+
     private fun hasPermission(permission: String): Boolean {
         return ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED
     }