// Copyright (c) 2017 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System.Windows.Controls;
using System.Xml.Linq;

namespace ICSharpCode.ILSpy.Options
{
	/// <summary>
	/// Interaction logic for MiscSettingsPanel.xaml
	/// </summary>
	[ExportOptionPage(Title =nameof(Properties.Resources.Misc), Order = 30)]
	public partial class MiscSettingsPanel : UserControl, IOptionPage
	{
		public MiscSettingsPanel()
		{
			InitializeComponent();
		}

		public void Load(ILSpySettings settings)
		{
			this.DataContext = LoadMiscSettings(settings);
		}

		static MiscSettings currentMiscSettings;

		public static MiscSettings CurrentMiscSettings {
			get {
				return currentMiscSettings ?? (currentMiscSettings = LoadMiscSettings(ILSpySettings.Load()));
			}
		}

		public static MiscSettings LoadMiscSettings(ILSpySettings settings)
		{
			XElement e = settings["MiscSettings"];
			var s = new MiscSettings();
			s.AllowMultipleInstances = (bool?)e.Attribute("AllowMultipleInstances") ?? false;
			s.LoadPreviousAssemblies = (bool?)e.Attribute(nameof(s.LoadPreviousAssemblies)) ?? true;

			return s;
		}

		public void Save(XElement root)
		{
			var s = (MiscSettings)this.DataContext;

			var section = new XElement("MiscSettings");
			section.SetAttributeValue("AllowMultipleInstances", s.AllowMultipleInstances);
			section.SetAttributeValue(nameof(s.LoadPreviousAssemblies), s.LoadPreviousAssemblies);

			XElement existingElement = root.Element("MiscSettings");
			if (existingElement != null)
				existingElement.ReplaceWith(section);
			else
				root.Add(section);

			currentMiscSettings = null; // invalidate cached settings
		}

		public void LoadDefaults()
		{
			currentMiscSettings = new MiscSettings();
			this.DataContext = currentMiscSettings;
		}
	}
}
