/****************************************************************************
 * 2019.4 GIDEONHE-HOMEPC
 ****************************************************************************/

using UniRx;
using UnityEngine;
using UniRx.Triggers;

namespace QFramework.ThermalPower
{
	public partial class UITreeNode : UIElement
	{
        public Color pointEnterColor;

        public Color pointExitColor;

		protected override void OnBeforeDestroy()
		{
		}

		private TreeNodeItem _treeNodeItemModel;

		/// <summary>
		/// 初始化方法
		/// </summary>
		/// <param name="treeNodeItem">节点数据模型</param>
		public void Init(TreeNodeItem treeNodeItem)
		{
			_treeNodeItemModel = treeNodeItem;
            string conent = _treeNodeItemModel.Content.Value;

            if (conent.Contains("%")) 
            {
                conent = conent.Split('%')[1];
            } 
			else if (conent.Contains("@"))
			{
                conent = conent.Split('@')[1];
            }

            //监测(监听)内容数据
            _treeNodeItemModel.Content.Subscribe(content => ContentText.text = conent);
			//根据数据模型的ShowHidden值监测，确定显示隐藏该Node
			_treeNodeItemModel.ShowHidden.Subscribe(value =>
			{
				if (value)
					Show();
				else
					Hide();
			});

			//根据数据模型的Layer值检测，改变Node位置
			_treeNodeItemModel.Layer.Subscribe(layer =>
			{
				var indentDistance = 15 * (layer - 1);
				Toggle.LocalPosition(indentDistance, 0);
				ContentText.LocalPosition(ContentText.GetLocalPosition().x + indentDistance, 0);
                //Button.LocalPosition(ContentText.GetLocalPosition().x + indentDistance, 0);
                Button.LocalPosition(ContentText.GetLocalPosition());
			});

			//如果没有子节点，隐藏Toggle
			if (treeNodeItem.ChildTreeNodeList.TreeNodeItems.Count == 0)
			{
				Toggle.Hide();
			}
			else
			{  
				Toggle.isOn = _treeNodeItemModel.ExPanded.Value;
				Toggle.onValueChanged.AddListener(on => _treeNodeItemModel.ExPanded.Value = on);
				//监测节点展开状态数据
				_treeNodeItemModel.ExPanded.Subscribe(on =>
				{
					if (on)
					{
                        ChangeChilderNodeItemState(treeNodeItem.ChildTreeNodeList.TreeNodeItems, true);
						ExpandImg.Show();
						RecoverImg.Hide();
						Toggle.targetGraphic = ExpandImg;
					}
					else
					{
                        ChangeChilderNodeItemState(treeNodeItem.ChildTreeNodeList.TreeNodeItems,false);
                        ExpandImg.Hide();
						RecoverImg.Show();
						Toggle.targetGraphic = RecoverImg;
					}
				});
			}

			//节点点击事件添加
			//以下为示例
			Button.GetComponent<ClickButton>().onLeftClick.AddListener(() => NodeButtonLeftClick(treeNodeItem));
            Button.GetComponent<ClickButton>().onMiddleClick.AddListener(() => Debug.Log(_treeNodeItemModel.Content.Value + "：中键点击"));
            Button.GetComponent<ClickButton>().onRightClick.AddListener(() =>
            {
                Debug.Log(_treeNodeItemModel.Content.Value + "：右键点击");
            });

            Button.OnPointerEnterAsObservable().Subscribe(_ =>
            {
                ContentText.color = pointEnterColor;
            });

            Button.OnPointerExitAsObservable().Subscribe(_ =>
            {
                ContentText.color = pointExitColor;
            });
        }

        private void NodeButtonLeftClick(TreeNodeItem treeNodeItem)
        {
            Debug.Log(_treeNodeItemModel.Content.Value + "：左键点击");      
        }

        /// <summary>
        /// 切换节点状态
        /// </summary>
        /// <param name="nodeList"></param>
        /// <param name="hide"></param>
        public void ChangeChilderNodeItemState(ReactiveCollection<TreeNodeItem> nodeList, bool hide = false)
        {
            nodeList.ForEach(item =>
            {
                item.ShowHidden.Value = hide;
                if (hide == true && item.ExPanded.Value == false) return;

                if (item.ChildTreeNodeList.TreeNodeItems.Count != 0)
                {
                    ChangeChilderNodeItemState(item.ChildTreeNodeList.TreeNodeItems, hide);
                }

            });
        }

    }
}