// -----------------------------------------------------------------------
// <copyright file="TreeItemContainerGenerator.cs" company="Steven Kirk">
// Copyright 2014 MIT Licence. See licence.md for more information.
// </copyright>
// -----------------------------------------------------------------------

namespace Perspex.Controls.Generators
{
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using System.Linq;
    using Perspex.Controls.Templates;

    public class TreeItemContainerGenerator<T> : ItemContainerGenerator, IItemContainerGenerator where T : TreeViewItem, new()
    {
        public TreeItemContainerGenerator(ItemsControl owner)
            : base(owner)
        {
        }

        ////IEnumerable<Control> IItemContainerGenerator.Remove(IEnumerable items)
        ////{
        ////    throw new NotImplementedException();
        ////    var result = new List<Control>();

        ////    foreach (var item in items)
        ////    {
        ////        var container = (T)this.GetContainerForItem(item);
        ////        this.Remove(container, result);
        ////    }

        ////    return result;
        ////}

        ////protected override Control CreateContainerOverride(object item)
        ////{
        ////    T result = item as T;

        ////    if (result == null)
        ////    {
        ////        TreeDataTemplate template = this.GetTreeDataTemplate(item);

        ////        result = new T
        ////        {
        ////            Header = template.Build(item),
        ////            Items = template.ItemsSelector(item),
        ////            IsExpanded = template.IsExpanded(item),
        ////        };
        ////    }

        ////    return result;
        ////}

        ////private TreeDataTemplate GetTreeDataTemplate(object item)
        ////{
        ////    IDataTemplate template = this.Owner.FindDataTemplate(item);

        ////    if (template == null)
        ////    {
        ////        template = DataTemplate.Default;
        ////    }

        ////    TreeDataTemplate treeTemplate = template as TreeDataTemplate;

        ////    if (treeTemplate == null)
        ////    {
        ////        treeTemplate = new TreeDataTemplate(template.Build, x => null);
        ////    }

        ////    return treeTemplate;
        ////}

        ////private void Remove(T container, List<Control> removed)
        ////{
        ////    if (container.Items != null)
        ////    {
        ////        foreach (var childItem in container.Items)
        ////        {
        ////            var childContainer = (T)this.GetContainerForItem(childItem);

        ////            if (childContainer != null)
        ////            {
        ////                this.Remove(childContainer, removed);
        ////            }
        ////        }
        ////    }

        ////    this.RemoveByContainerInternal(container);
        ////    removed.Add(container);
        ////}
    }
}