using F3Device.Screen;
using QFramework;
using QFramework.Example;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using static UnityEngine.GraphicsBuffer;

/// <summary>
/// 通用拖拽组件
/// </summary>
public class DragUIItem : MonoBehaviour, IDragHandler, IBeginDragHandler, IEndDragHandler
{
    public string targetName; // 目标物体名称

    private RectTransform rectTransform;
    private Canvas canvas;
    private Vector2 startPosition;
    private LayoutGroup parentLayoutGroup;
    private GraphicRaycaster graphicRaycaster;
    private int startIndex;

  public  bool IsFirst = true;

    private void Awake()
    {
        rectTransform = GetComponent<RectTransform>();
        canvas = GetComponentInParent<Canvas>();
        graphicRaycaster = canvas.GetComponent<GraphicRaycaster>();
        startPosition = rectTransform.anchoredPosition;
        parentLayoutGroup = GetComponentInParent<LayoutGroup>();
       
        raycastResults = new List<RaycastResult>();
        IsFirst = true;
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        if (parentLayoutGroup != null)
        {
            parentLayoutGroup.enabled = false;

            if (parentLayoutGroup.GetComponent<ContentSizeFitter>() != null)
                parentLayoutGroup.GetComponent<ContentSizeFitter>().enabled = false;
        }

        startIndex = transform.GetSiblingIndex();
    }

    public void OnDrag(PointerEventData eventData)
    {
        rectTransform.transform.position = Input.mousePosition;
    }

    bool isRight;
    List<RaycastResult> raycastResults;
    private GameObject target;

    public void OnEndDrag(PointerEventData eventData)
    {




       

        raycastResults.Clear();
        EventSystem.current.RaycastAll(eventData, raycastResults);

        target = null;
        foreach (var result in raycastResults)
        {
            if (result.gameObject.name == targetName)
            {
                target = result.gameObject;
                break;
            }
        }
      

        if (target != null)
        {
            if (IsFirst)
            {
                ScoreController.Instance.Add("三维构造考核", 1);
                Debug.Log("放置正确，得1分，禁用拖拽");
            }
            else
            {
                Debug.Log("放置正确，但不是第一次，不得分！");
            }
       

            // 禁用射线检测，防止再次被拖拽
            GraphicRaycaster graphicRaycaster = GetComponent<GraphicRaycaster>();
            if (graphicRaycaster != null)
            {
                graphicRaycaster.enabled = false;
            }

            // 或者禁用Image组件的raycastTarget
            Image image = GetComponent<Image>();
            if (image != null)
            {
                image.raycastTarget = false;
            }

            gameObject.SetActive(false);
            target.gameObject.transform.Find("Text (Legacy)").gameObject.SetActive(true);
            if (parentLayoutGroup != null)
            {
                parentLayoutGroup.enabled = true;

                if (parentLayoutGroup.GetComponent<ContentSizeFitter>() != null)
                    parentLayoutGroup.GetComponent<ContentSizeFitter>().enabled = true;
            }
        }
        else
        {
            IsFirst = false;
            ResetPosition(); Debug.Log("放置错误，不得分");
            var data = new UIResultTipData();
            data.label = $"放置错误，请重新放置！";
            data.isRight = false;
            data.autoHideTime = 0.5f;
            UIKit.OpenPanelAsync<UIResultTip>(uiData: data, canvasLevel: UILevel.PopUI).ToAction().Start(this);

    

        }

        target = null;
    }

    // 重置位置
    private void ResetPosition()
    {
        transform.SetSiblingIndex(startIndex);

        if (parentLayoutGroup != null)
        {
            parentLayoutGroup.enabled = true;

            if (parentLayoutGroup.GetComponent<ContentSizeFitter>() != null)
                parentLayoutGroup.GetComponent<ContentSizeFitter>().enabled = true;
        }

    }
}