using UnityEngine;
using UnityEngine.EventSystems;
using Yarn.Unity; 
using System;

public class ClueInteraction : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    private Transform originalParent;
    public Transform OriginalParent => originalParent;
    private Canvas canvas;
    private ClueItem clueItem;
    [HideInInspector]
    public bool isFavorited = false; // 初始未收藏

    private RectTransform rectTransform;
    private Vector2 originalAnchorMin;
    private Vector2 originalAnchorMax;
    private Vector2 originalOffsetMin;
    private Vector2 originalOffsetMax;
    private Vector2 originalPivot;

    private CursorMode cursorMode = CursorMode.Auto;

    public event Action OnInteraction;

    private void Start()
    {
        canvas = GetComponentInParent<Canvas>();
        clueItem = GetComponent<ClueItem>();
        rectTransform = GetComponent<RectTransform>();

        // 存储初始尺寸属性
        StoreOriginalTransform();
    }

    private void StoreOriginalTransform()
    {
        originalParent = transform.parent;
        originalAnchorMin = rectTransform.anchorMin;
        originalAnchorMax = rectTransform.anchorMax;
        originalOffsetMin = rectTransform.offsetMin;
        originalOffsetMax = rectTransform.offsetMax;
        originalPivot = rectTransform.pivot;
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        // 可以设置收藏夹样式的鼠标指针
        // Cursor.SetCursor(favoriteCursor, Vector2.zero, cursorMode);
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        Cursor.SetCursor(null, Vector2.zero, cursorMode);
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        // if (isFavorited)
        // {
        //     Debug.Log("已经收藏，点击查看详情");
        // }
        // else
        // {
        //     if(GetComponent<Clue>().ClueType==ClueType.PunchTape)
        //     {
        //         FavoritesManager.Instance.AddClue(clueItem.GetClueData());
        //         Destroy(gameObject);
        //         Debug.Log("收藏成功！");
        //         OnInteraction?.Invoke();
        //     }
        //     else
        //     {
        //         OnInteraction?.Invoke();
        //     }

           
        // }
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        if (!isFavorited) return;

        transform.SetParent(canvas.transform);
        GetComponent<CanvasGroup>().blocksRaycasts = false;
    }

    public void OnDrag(PointerEventData eventData)
    {
        if (!isFavorited) return;

        transform.position = Input.mousePosition;
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        if (!isFavorited) return;

        if (transform.parent == canvas.transform)
        {
            ReturnToOriginalPosition();
        }
        GetComponent<CanvasGroup>().blocksRaycasts = true;
    }

    public void ReturnToOriginalPosition()
    {
        transform.SetParent(originalParent);
        rectTransform.anchorMin = originalAnchorMin;
        rectTransform.anchorMax = originalAnchorMax;
        rectTransform.offsetMin = originalOffsetMin;
        rectTransform.offsetMax = originalOffsetMax;
        rectTransform.pivot = originalPivot;
        transform.localPosition = Vector3.zero; // 重置为初始局部位置
    }

    public void SetClueParentAndPosition(Transform newParent)
    {
        rectTransform.SetParent(newParent);
        // rectTransform.anchorMin = Vector2.zero;
        // rectTransform.anchorMax = Vector2.one;
        // rectTransform.offsetMin = Vector2.zero;
        // rectTransform.offsetMax = Vector2.zero;
        rectTransform.pivot = new Vector2(0.5f, 0.5f);
        transform.localPosition = Vector3.zero;
    }

    public void SetIsFavorited(bool isFavorited)
    {
        this.isFavorited = isFavorited;
    }
}