using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using Prism.Events;
using SWS.CAD.Event;
using SWS.CAD.ViewModels;
using SWS.Commons;
using Telerik.Windows.Controls;
using Unity;

namespace SWS.CAD.Views.Dialog
{
    /// <summary>
    /// DialogIODistribution.xaml 的交互逻辑
    /// </summary>
    public partial class DialogIODistribution : UserControl
    {
        IEventAggregator _eventAggregator;

        public DialogIODistribution()
        {
            InitializeComponent();
            DataContext = new DialogIODistributionViewModel();
            _eventAggregator = GlobalObject.container.Resolve<IEventAggregator>();
            _eventAggregator.GetEvent<ScrollToItemEvent>().Subscribe(ScrollToSelectedItem, ThreadOption.UIThread, true);
        }

        private void RadTreeView_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {

            var treeView = sender as RadTreeView;
            var originalSource = e.OriginalSource as DependencyObject;

            // 查找被点击的 RadTreeViewItem
            var clickedItem = VisualUpwardSearch<RadTreeViewItem>(originalSource);
            if (clickedItem != null && clickedItem.DataContext is Model.TreeModel treeNode)
            {
                dynamic dynamicObj = treeNode.NodeExtData;
                string PanelIDValue = dynamicObj.PanelID;

                // 选中节点并显示菜单
                clickedItem.IsSelected = true;
                //ContextMenu cm = (ContextMenu)FindResource("NodeContextMenu1");
                // 获取右键菜单
                var cm = TreeItemContextMenu;
                cm.Items.Clear(); // 清空现有菜单项

                var x = DataContext as DialogIODistributionViewModel;
                if (treeNode.NodeType.Equals("1") && treeNode.ID.Equals(PanelIDValue))
                {
                    cm.Items.Add(new MenuItem { Header = "采集箱属性", Command = x.MouseRightCmd, CommandParameter = treeNode });
                }
                //else if(treeNode.NodeType.Equals("1") && treeNode.parentId.Equals(PanelIDValue))
                else
                {
                    // 创建父级菜单项（迁移到）
                    var moveMenuItem = new MenuItem { Header = "迁移到" };
                    foreach (Model.TreeModel item in treeView.ItemsSource)
                    {
                        foreach (var item1 in item.ChildNodes)
                        {
                            var subItem = new MenuItem
                            {
                                Header = item1.Text,
                                Command = x.MouseRightCmd, // 需要创建新命令
                                CommandParameter = item1.ID+","+treeNode.ID
                            };
                            moveMenuItem.Items.Add(subItem);
                        }
                        
                    }
                    cm.Items.Add(moveMenuItem);
                }

                cm.PlacementTarget = clickedItem;
                cm.IsOpen = true;
                e.Handled = true;
            }
        }
        // 辅助方法：向上查找父级 TreeViewItem
        private T VisualUpwardSearch<T>(DependencyObject source) where T : DependencyObject
        {
            while (source != null && !(source is T))
            {
                source = VisualTreeHelper.GetParent(source);
            }
            return source as T;
        }

        // 滚动到选中项
        private void ScrollToSelectedItem(object path)
        {
            var pathls = path as List<string>;
            var ph = string.Join("\\", pathls);
            treeView1.BringPathIntoView(ph);
        }

    }
}