using SuperTreeView;
using System.Collections.Generic;
using System.Xml.Serialization;
using UnityEngine;
using UnityEngine.UI;
using ZXKFramework;
namespace DongWuYiXue.DaoNiaoShu
{
    public class TData_R
    {
        public List<TData_1> data_1s = new();
    }

    public class TData_1
    {
        public List<TData_2> data_2s = new();
        public string name;
        public string data;
    }
    public class TData_2
    {
        public string name;
        public string data;
    }
    public class TreeViewPanel : UIBase
    {
        public override string GroupName => "TreeViewPanel";
        public override string Name => "TreeViewPanel";

        public TreeView mTreeView;
        int mCurSelectedItemId = 0;
        UIDynamicMover uIDynamicMover;
        public ScrollRect scrollRect;
        //Action<string> onclick;
        bool isDestroy;
        public override void Init(IUIManager uictrl)
        {
            base.Init(uictrl);
            scrollRect = transform.FindFirst<ScrollRect>("TreeScrollView");
            mTreeView = transform.FindFirst<TreeView>("TreeView");
            uIDynamicMover = transform.FindFirst<UIDynamicMover>("arrBtn");
            mTreeView.OnItemCustomEvent = OnItemCustomEvent;
            mTreeView.OnItemExpandBegin = OnItemExpandBegin;
            mTreeView.OnItemCollapseBegin = OnItemCollapseBegin;
        }
        public void BuildButton(TData_R data_R)
        {
            //onclick = callBack;
            mTreeView.InitView();
            foreach (var item1 in data_R.data_1s)
            {
                TreeViewItem t1 = mTreeView.AppendItem("ItemPrefab1");
                t1.GetComponent<ItemPrefab1>().SetItemInfo(item1.name, item1.data);
                foreach (var item2 in item1.data_2s)
                {
                    TreeViewItem t2 = t1.ChildTree.AppendItem("ItemPrefab2");
                    t2.GetComponent<ItemPrefab2>().SetItemInfo(item2.name, item2.data);
                }
            }
            mTreeView.CollapseAllItem();
        }
        private void OnItemCollapseBegin(TreeViewItem item)
        {
            ItemPrefab1 st = item.GetComponent<ItemPrefab1>();
            st.SetExpandStatus(false);
        }
        private void OnItemExpandBegin(TreeViewItem item)
        {
            ItemPrefab1 st = item.GetComponent<ItemPrefab1>();
            st.SetExpandStatus(true);
        }
        private void OnItemCustomEvent(TreeViewItem item, SuperTreeView.CustomEvent @event, object arg3)
        {
            if (GetModel<Main.GameModel>().modeType == ModeType.KaoHe) return;
            if (@event == SuperTreeView.CustomEvent.ItemClicked)
            {
                Debug.Log(arg3);
                OnItemSelect(item);
                Game.Instance.uiManager.ShowUI<LoadingPanel>();
                GameManager.Instance.fsm.PlayClip("跳步");
                GameManager.Instance.sceneDataHandler.LoadSceneDataFromJson(GetModel<Main.GameModel>().mainData.folder + "/SaveData/" + (string)arg3 + ".json", () =>
                {
                    GameManager.Instance.fsm.ChangeState((string)arg3);
                    Game.Instance.uiManager.CloseUI<LoadingPanel>();
                });
            }
        }
        private void OnItemSelect(TreeViewItem item)
        {
            ItemPrefab2 st = item.GetComponent<ItemPrefab2>();
            if (mCurSelectedItemId > 0)
            {
                if (item.ItemId == mCurSelectedItemId)
                {
                    return;
                }
                TreeViewItem curSelectedItem = mTreeView.GetTreeItemById(mCurSelectedItemId);
                if (curSelectedItem != null)
                {
                    curSelectedItem.GetComponent<ItemPrefab2>().IsSelected = false;
                }
                mCurSelectedItemId = 0;
            }
            st.IsSelected = true;
            mCurSelectedItemId = item.ItemId;
        }
        public void Locate(string name1, string name2)
        {
            mTreeView.CollapseAllItem();
            ItemPrefab1[] itemPrefab1s = mTreeView.GetComponentsInChildren<ItemPrefab1>();
            ItemPrefab1 itemPrefab1 = null;
            for (int i = 0; i < itemPrefab1s.Length; i++)
            {
                if (itemPrefab1s[i].TextName.text == name1)
                {
                    Nevigate(itemPrefab1s[i].GetComponent<RectTransform>());
                    itemPrefab1s[i].GetComponent<TreeViewItem>().Expand();
                    itemPrefab1s[i].IsSelected = true;
                    itemPrefab1 = itemPrefab1s[i];
                }
            }
            if (itemPrefab1 != null)
            {
                ItemPrefab2[] itemPrefab2s = itemPrefab1.GetComponentsInChildren<ItemPrefab2>();
                for (int i = 0; i < itemPrefab2s.Length; i++)
                {
                    if (itemPrefab2s[i].TextName.text == name2)
                    {
                        OnItemSelect(itemPrefab2s[i].GetComponent<TreeViewItem>());
                    }
                }
            }
            //Nevigate(itemPrefab1s[i].GetComponent<RectTransform>());
        }
        public void Nevigate(RectTransform item)
        {
            // InverseTransformPoint: Transforms position from world space to local space, 和TransformPoint左右相反
            // 这步的意义是把 item、viewport的localPosition转换到同一个父节点下，才能计算出需要移动的差值
            // 看图1
            Vector3 itemCurrentLocalPostion = scrollRect.GetComponent<RectTransform>().InverseTransformPoint(ConvertLocalPosToWorldPos(item));
            Vector3 itemTargetLocalPos = scrollRect.GetComponent<RectTransform>().InverseTransformPoint(ConvertLocalPosToWorldPos(scrollRect.viewport));
            // 计算需要移动的距离
            Vector3 diff = itemTargetLocalPos - itemCurrentLocalPostion;

            // 当第一个item处于viewport最上时 verticalNormalizedPosition = 0，处于最左时 horizontalNormalizedPosition = 0，看图2

            // 计算需要移动的距离占的比，即需要移动的距离占可移动长度的百分比，看图3
            // 如果你的 viewport 中只能显示一个item的话，这样就行了，但是超过了1个的话需要计算偏移：
            // 以数值方向为例，当verticalNormalizedPosition = 0，第一个 item 距离 viewport的中心位置其实有一段距离的，
            // 所以要减去这段距离，diff.y - offset，再计算 newNormalizedPosition，看图4
            var newNormalizedPosition = new Vector2(
                diff.x / (scrollRect.content.GetComponent<RectTransform>().rect.width - scrollRect.viewport.rect.width),
                diff.y / (scrollRect.content.GetComponent<RectTransform>().rect.height - scrollRect.viewport.rect.height)
                );
            // 当时 normalizedPosition - 需要移动的占比newNormalizedPosition，得到最终的位置normalizedPosition
            newNormalizedPosition = scrollRect.GetComponent<ScrollRect>().normalizedPosition - newNormalizedPosition;

            newNormalizedPosition.x = Mathf.Clamp01(newNormalizedPosition.x);
            newNormalizedPosition.y = Mathf.Clamp01(newNormalizedPosition.y);
            // 也可以只设置水平方向 horizontalNormalizedPosition，或竖直方向 verticalNormalizedPosition
            // 设置 normalizedPosition 等于同时设置 horizontalNormalizedPosition， verticalNormalizedPosition
            // normalizedPosition.x == horizontalNormalizedPosition
            // normalizedPosition.y == verticalNormalizedPosition
            // normalizedPosition == new Vector2(horizontalNormalizedPosition, verticalNormalizedPosition)
            scrollRect.GetComponent<ScrollRect>().normalizedPosition = newNormalizedPosition;

            // 如果有分类功能，比如点击type1,scrollview中显示type1中的数据,点击type2，scrollview中显示type2中的数据，需要在给 
            // normalizedPosition 赋值前先赋值 (0, 0)，否则最后一行代码获取的 normalizedPosition 还是上一类型 type 中的 
            // normalizedPosition，导致出bug
        }

        // 这个方法的作用是消除Pivot数值的影响，Pivot不是(0.5，0.5)时，最后所计算出来的结果会有误差
        // 如果是(0.5, 0.5)的话可以直接返回 target.parent.TransformPoint(localPosition)
        private Vector3 ConvertLocalPosToWorldPos(RectTransform target)
        {
            var pivotOffset = new Vector3(
                (0.5f - target.pivot.x) * target.rect.size.x,
                (0.5f - target.pivot.y) * target.rect.size.y,
                0f);

            var localPosition = target.localPosition + pivotOffset;
            // TransformPoint: Transforms position from local space to world space
            return target.parent.TransformPoint(localPosition);
        }

        public void LockAllBtn()
        {
            //ItemPrefab1[] itemPrefab1s = mTreeView.GetComponentsInChildren<ItemPrefab1>(true);
            //for (int i = 0; i < itemPrefab1s.Length; i++)
            //{
            //    itemPrefab1s[i].LockClick();
            //}
            ItemPrefab2[] itemPrefab2s = mTreeView.GetComponentsInChildren<ItemPrefab2>(true);
            for (int i = 0; i < itemPrefab2s.Length; i++)
            {
                itemPrefab2s[i].LockClick();
            }
        }

        public void UnLockAllBtn()
        {
            if (mTreeView == null) return;
            ItemPrefab2[] itemPrefab2s = mTreeView.GetComponentsInChildren<ItemPrefab2>(true);
            for (int i = 0; i < itemPrefab2s.Length; i++)
            {
                itemPrefab2s[i].UnlockClick();
            }
        }
        private void OnDestroy()
        {
            isDestroy = true;
        }
    }
}