first commit

Views/Selection/Selection.axaml.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Specialized;
+using Avalonia.Controls;
+
+namespace MercuryConverter.Views;
+
+public partial class Selection : Panel
+{
+    public Selection()
+    {
+        InitializeComponent();
+        Database.Songs.CollectionChanged += OnSongsChg;
+    }
+
+    private void OnSongsChg(object? sender, NotifyCollectionChangedEventArgs e)
+    {
+        Console.WriteLine("Songs collection changed!");
+
+        if (e.NewItems != null)
+        {
+            Console.WriteLine("Added...");
+            foreach (Data.Song added in e.NewItems)
+            {
+                Console.WriteLine($"[{added.id}] {added.artist} - {added.name}");
+            }
+        }
+        if (e.OldItems != null)
+        {
+            Console.WriteLine("Removed...");
+            foreach (Data.Song rem in e.OldItems)
+            {
+                Console.WriteLine($"[{rem.id}] {rem.artist} - {rem.name}");
+            }
+        } 
+    }
+}