Reorganize project structure

RemSox.Kernel/Utils/ChangedPropertiesTracker.cs

@@ -0,0 +1,52 @@
+using System.ComponentModel;
+
+namespace RemSox.Kernel.Utils;
+
+public abstract class ChangedPropertiesTracker : INotifyPropertyChanged
+{
+    private readonly Dictionary<string, object?> properties = [];
+    private readonly HashSet<string> changedPropertyNames = [];
+
+    public IReadOnlyDictionary<string, object?> ChangedProperties
+    {
+        get
+        {
+            Dictionary<string, object?> changes = [];
+            foreach (string name in changedPropertyNames)
+            {
+                if (properties.TryGetValue(name, out object? value))
+                {
+                    changes[name] = value;
+                }
+            }
+            return changes;
+        }
+    }
+
+    public IReadOnlyDictionary<string, object?> AllProperties => properties;
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    public bool AnyPropertyChanged => changedPropertyNames.Count > 0;
+
+    protected void SetProperty<T>(string name, ref T field, T value)
+    {
+        if (!EqualityComparer<T>.Default.Equals(field, value))
+        {
+            field = value;
+            properties[name] = value;
+            _ = changedPropertyNames.Add(name);
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
+        }
+    }
+
+    public void ClearChangedProperties()
+    {
+        changedPropertyNames.Clear();
+    }
+
+    public bool IsPropertyChanged(string name)
+    {
+        return changedPropertyNames.Contains(name);
+    }
+}