Add logging and track mute state

AudioDevice.cs

@@ -4,7 +4,6 @@ using Serilog;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Windows.Threading;
 
 namespace WorkIndicator;
 
@@ -14,6 +13,8 @@ internal class AudioDevice : IAudioSessionEventsHandler
     private readonly string _friendlyName;
     private readonly Dictionary<string, AudioSessionControl> _sessions = new();
 
+    private bool _muted;
+
     public delegate void AudioSessionsChangedDelegate();
 
     public event AudioSessionsChangedDelegate AudioSessionsChanged;
@@ -23,6 +24,9 @@ internal class AudioDevice : IAudioSessionEventsHandler
         _logger = Log.ForContext<AudioDevice>();
 
         _friendlyName = device.DeviceFriendlyName;
+        _muted = device.AudioEndpointVolume.Mute;
+
+        _logger.Information("AudioDevice: {name} {muted}", _friendlyName, _muted);
 
         device.AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
         device.AudioSessionManager.AudioSessionControl.RegisterEventClient(this);
@@ -40,6 +44,8 @@ internal class AudioDevice : IAudioSessionEventsHandler
     private void AudioEndpointVolume_OnVolumeNotification(AudioVolumeNotificationData data)
     {
         _logger.Information("AudioEndpointVolume_OnVolumeNotification: {name} {muted}", _friendlyName, data.Muted);
+
+        _muted = data.Muted;
     }
 
     private void AudioSessionManager_OnSessionCreated(object sender, IAudioSessionControl newSession)