Add some basic logging

App.xaml.cs

@@ -1,6 +1,7 @@
 using Common.Helpers;
 using Common.IO;
 using Common.Wpf.Extensions;
+using Serilog;
 using Squirrel;
 using System;
 using System.Reflection;
@@ -25,6 +26,13 @@ namespace WorkIndicator
         {
             SquirrelAwareApp.HandleEvents(onAppUpdate: version => Common.Settings.Extensions.RestoreSettings());
 
+            Log.Logger = new LoggerConfiguration()
+                        .MinimumLevel.Debug()
+                        .WriteTo.File("log.txt", rollingInterval: RollingInterval.Day)
+                        .CreateLogger();
+
+            Log.Logger.Debug($"Startup");
+
             var application = new App();
             application.InitializeComponent();
             application.Run();
@@ -90,6 +98,8 @@ namespace WorkIndicator
 
         protected override void OnExit(ExitEventArgs e)
         {
+            Log.Logger.Debug($"Exit");
+
             // Get rid of the light controller
             LightController.Dispose();
 

AudioWatcher.cs

@@ -1,4 +1,5 @@
 using CSCore.CoreAudioAPI;
+using Serilog;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -16,11 +17,19 @@ namespace WorkIndicator
 
         public static event MicrophoneInUseChangedDelegate MicrophoneInUseChanged;
 
+        private static Thread _thread;
+
+        private static readonly List<AudioSessionManager2> _sessionManagers = new List<AudioSessionManager2>();
+
+        private static readonly ILogger Logger = Log.Logger;
+
         public static void Start()
         {
+            Logger.Debug("AudioWatcher - Start");
+
             _manualResetEvent = new ManualResetEvent(false);
 
-            var thread = new Thread(delegate ()
+            _thread = new Thread(delegate ()
             {
                 var deviceEnumerator = new MMDeviceEnumerator();
 
@@ -28,11 +37,11 @@ namespace WorkIndicator
                 {
                     var sessionManager = AudioSessionManager2.FromMMDevice(device);
 
-                    var sessionEnumerator = sessionManager.GetSessionEnumerator();
+                    _sessionManagers.Add(sessionManager);
 
                     sessionManager.SessionCreated += (sessionSender, sessionCreatedEventArgs) => HandleDeviceSession(device, sessionCreatedEventArgs.NewSession);
 
-                    foreach (var audioSessionControl in sessionEnumerator)
+                    foreach (var audioSessionControl in sessionManager.GetSessionEnumerator())
                     {
                         HandleDeviceSession(device, audioSessionControl);
                     }
@@ -41,14 +50,16 @@ namespace WorkIndicator
                 _manualResetEvent.WaitOne();
             });
 
-            thread.SetApartmentState(ApartmentState.MTA);
-            thread.Start();
+            _thread.SetApartmentState(ApartmentState.MTA);
+            _thread.Start();
         }
 
         private static void HandleDeviceSession(MMDevice device, AudioSessionControl audioSessionControl)
         {
             var deviceId = device.DeviceID + audioSessionControl.GroupingParam;
 
+            Logger.Debug($"AudioWatcher - HandleDeviceSession - {device.FriendlyName}, {deviceId}");
+
             if (!ActiveSessions.ContainsKey(deviceId))
                 ActiveSessions[deviceId] = 0;
 
@@ -60,11 +71,17 @@ namespace WorkIndicator
 
         public static void Stop()
         {
+            Logger.Debug("AudioWatcher - Stop");
+
+            _sessionManagers.Clear();
+
             _manualResetEvent?.Set();
         }
 
         private static void HandleAudioStateChanged(string deviceId, AudioSessionState newState)
         {
+            Logger.Debug($"AudioWatcher - HandleAudioStateChanged - {deviceId}, {newState}");
+
             switch (newState)
             {
                 case AudioSessionState.AudioSessionStateActive:
@@ -75,11 +92,14 @@ namespace WorkIndicator
                         ActiveSessions[deviceId]--;
                     break;
                 case AudioSessionState.AudioSessionStateExpired:
+                    ActiveSessions[deviceId] = 0;
                     break;
                 default:
                     throw new ArgumentOutOfRangeException();
             }
 
+            Logger.Debug($"AudioWatcher - HandleAudioStateChanged - {deviceId} = {ActiveSessions[deviceId]}");
+
             MicrophoneInUseChanged?.Invoke(MicrophoneInUse());
         }
 

WorkIndicator.csproj

@@ -238,6 +238,12 @@
     <PackageReference Include="Newtonsoft.Json">
       <Version>13.0.1</Version>
     </PackageReference>
+    <PackageReference Include="Serilog">
+      <Version>2.10.0</Version>
+    </PackageReference>
+    <PackageReference Include="Serilog.Sinks.File">
+      <Version>5.0.0</Version>
+    </PackageReference>
     <PackageReference Include="squirrel.windows">
       <Version>2.0.1</Version>
     </PackageReference>