SettingsViewModelBase

using System;
using System.Reflection;
using Changelog.Annotations;
using Changelog.Properties;

namespace Namespace
{
	public class SettingsViewModelBase : ViewModelBase, ICloneable
	{
		public void Load()
		{
			Load(Settings.Default);
		}

		internal void Load([NotNull] Settings settings)
		{
			CopyProperties(settings, this);
		}

		public void Save()
		{
			Save(Settings.Default);
		}

		internal void Save([NotNull] Settings settings)
		{
			CopyProperties(this, settings);
		}

		public virtual object Clone()
		{
			var target = Activator.CreateInstance(GetType());
			CopyProperties(this, target);
			return target;
		}

		private static void CopyProperties(object source, object target)
		{
			var sourceProperties = source.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetProperty);
			var targetProperties = target.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetProperty);

			foreach (var sourceProperty in sourceProperties)
			{
				foreach (var targetProperty in targetProperties)
				{
					if (targetProperty.Name != sourceProperty.Name)
						continue;
					if (targetProperty.PropertyType != sourceProperty.PropertyType)
						throw new InvalidOperationException();

					var value = sourceProperty.GetValue(source, null);
					targetProperty.SetValue(target, value, null);
					break;
				}
			}
		}
	}
}