Added initial audio library logic.

Harmonia.Core/Library/IAudioLibrary.cs

@@ -0,0 +1,67 @@
+namespace Harmonia.Core.Library;
+
+public interface IAudioLibrary
+{
+    void AddLocation(string path);
+    void RemoveLocation(string path);
+    void RemoveLocations(string[] paths);
+    void Scan(string path);
+    void Scan(string[] paths);
+
+    event EventHandler<EventArgs>? LocationAdded;
+    event EventHandler<EventArgs>? LocationRemoved;
+    event EventHandler<EventArgs>? ScanStarted;
+    event EventHandler<EventArgs>? ScanFinished;
+}
+
+public class AudioLibrary : IAudioLibrary
+{
+    private readonly List<string> _locations = [];
+
+    public event EventHandler<EventArgs>? LocationAdded;
+    public event EventHandler<EventArgs>? LocationRemoved;
+    public event EventHandler<EventArgs>? ScanStarted;
+    public event EventHandler<EventArgs>? ScanFinished;
+
+    public void AddLocation(string path)
+    {
+        if (_locations.Contains(path))
+            return;
+
+        // TODO: CHeck for subpaths
+
+        _locations.Add(path);
+
+        LocationAdded?.Invoke(this, new EventArgs());
+    }
+
+    public void RemoveLocation(string path)
+    {
+        RemoveLocations([path]);
+    }
+
+    public void RemoveLocations(string[] paths)
+    {
+        foreach (string path in paths)
+        {
+            if (_locations.Contains(path) == false)
+                continue;
+
+
+        }
+
+        LocationRemoved?.Invoke(this, new EventArgs());
+    }
+
+    public void Scan(string path)
+    {
+        Scan([path]);
+    }
+
+    public void Scan(string[] paths)
+    {
+        ScanStarted?.Invoke(this, new EventArgs());
+
+        ScanFinished?.Invoke(this, new EventArgs());
+    }
+}