- introduce controllable collector

Lib.Audio/ControllableCollector.cs

@@ -0,0 +1,28 @@
+// Author: Gockner, Simon
+// Created: 2021-04-08
+// Copyright(c) 2021 SimonG. All Rights Reserved.
+
+using System.Collections.Generic;
+using System.Linq;
+using Lib.Audio.Factories;
+using Lib.Audio.Interfaces;
+using NAudio.CoreAudioApi;
+
+namespace Lib.Audio
+{
+    public class ControllableCollector : IControllableCollector
+    {
+        private readonly IControllableFactory _controllableFactory;
+        
+        public ControllableCollector(IControllableFactory controllableFactory) => _controllableFactory = controllableFactory;
+
+        public List<IControllable> Controllables => CreateControllables();
+        private List<IControllable> CreateControllables()
+        {
+            MMDeviceEnumerator deviceEnumerator = new();
+            MMDeviceCollection? audioDevices = deviceEnumerator.EnumerateAudioEndPoints(DataFlow.All, DeviceState.Active);
+
+            return audioDevices.Select(a => _controllableFactory.Create(a.AudioSessionManager.AudioSessionControl)).ToList();
+        }
+    }
+}

Lib.Audio/Factories/IControllableCollectorFactory.cs

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+// Author: Gockner, Simon
+// Created: 2021-04-08
+// Copyright(c) 2021 SimonG. All Rights Reserved.
+
+using Lib.Audio.Interfaces;
+
+namespace Lib.Audio.Factories
+{
+    public interface IControllableCollectorFactory
+    {
+        IControllableCollector Create();
+    }
+}

Lib.Audio/Interfaces/IControllableCollector.cs

@@ -0,0 +1,13 @@
+// Author: Gockner, Simon
+// Created: 2021-04-08
+// Copyright(c) 2021 SimonG. All Rights Reserved.
+
+using System.Collections.Generic;
+
+namespace Lib.Audio.Interfaces
+{
+    public interface IControllableCollector
+    {
+        List<IControllable> Controllables { get; }
+    }
+}