using System;
using System.Linq;

namespace Vanara.Windows.Shell
{
	internal class JumpListItemCollectionEditor : System.ComponentModel.Design.CollectionEditor
	{
		/// <summary>Initializes a new instance of the <see cref="JumpListItemCollectionEditor"/> class.</summary>
		public JumpListItemCollectionEditor() : base(typeof(JumpList))
		{
		}

		/// <summary>Creates the collection form.</summary>
		/// <returns></returns>
		protected override CollectionForm CreateCollectionForm()
		{
			var f = base.CreateCollectionForm();
			f.Text = "JumpList Item Collection Editor";
			return f;
		}

		/// <summary>Creates the new item types.</summary>
		/// <returns></returns>
		protected override Type[] CreateNewItemTypes() => new[] { typeof(JumpListDestination), typeof(JumpListTask), typeof(JumpListSeparator) };

		/// <summary>Sets the items.</summary>
		/// <param name="editValue">The edit value.</param>
		/// <param name="value">The value.</param>
		/// <returns></returns>
		protected override object SetItems(object editValue, object[] value)
		{
			if (editValue is JumpList c)
			{
				c.Clear();
				foreach (var i in value.Cast<IJumpListItem>())
					c.Add(i);
			}
			return editValue;
		}

		protected override object CreateInstance(Type itemType)
		{
			if (itemType == typeof(JumpListDestination))
				return new JumpListDestination("[Category name]", "[File path]");
			if (itemType == typeof(JumpListSeparator))
				return new JumpListSeparator();
			if (itemType == typeof(JumpListTask))
				return new JumpListTask("[Title]", "[Application path]");
			return base.CreateInstance(itemType);
		}

		protected override string GetDisplayText(object value) => value is JumpListSeparator ? "-----------" : value.ToString();

		/*protected override string HelpTopic => base.HelpTopic;

		public override object EditValue(ITypeDescriptorContext context, System.IServiceProvider provider, object value)
		{
			return base.EditValue(context, provider, value);
		}

		protected override CollectionForm CreateCollectionForm() => new JumpListItemCollectionEditorForm(this);

		protected class JumpListItemCollectionEditorForm : CollectionForm
		{
			public JumpListItemCollectionEditorForm(CollectionEditor editor) : base(editor)
			{
			}

			protected override void OnEditValueChanged();
		}*/
	}
}