using UnityEngine;
using UnityEngine.EventSystems;
using DG.Tweening;
using UnityEngine.UI;
using Yarn.Unity;

public class Crowbar : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    public float rotationSpeed = 10f; // 拖动旋转的速度
    public float rotationThreshold = 30f; // 触发撬动完成的旋转阈值

    public Transform crowbarVisual;
    //public Transform crowbarBox;
    public Transform crowbarInPosition;
    //public Transform crowbarOutPosition;
    public Transform crowbarSocket;
    public bool IsInDialogue { get; set; } = false;

    private Vector3 startPosition;
    private Quaternion startRotation= Quaternion.Euler(0f, 0f, -225f);
    private bool isInserted = false;
    private Vector3 lastMousePosition;
    private float progress = 0f;
    private Image image;
    private bool isPryingCompleted = false;

    private void Awake()
    {
        image = GetComponent<Image>();
    }

    private void Start()
    {
        // startPosition = transform.position;
        // startRotation = transform.rotation;
    }

    public void MoveIn()
    {
        //transform.DOMove(crowbarInPosition.position, 0.5f);
    }

    public void MoveOut()
    {
        //transform.DOMove(crowbarOutPosition.position, 0.5f);
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        if (IsInDialogue || isInserted) return;

        image.raycastTarget = false;
        //crowbarSocket.Activate();

        RectTransform canvasRectTransform = (RectTransform)transform.root;
        Vector3 worldPoint;
        if (RectTransformUtility.ScreenPointToWorldPointInRectangle(canvasRectTransform, eventData.position, eventData.pressEventCamera, out worldPoint))
        {
            transform.position = worldPoint;
        }
        lastMousePosition = Input.mousePosition;
    }

public void OnDrag(PointerEventData eventData)
{
     if (IsInDialogue || isPryingCompleted) return;

    if (isInserted)
    {
        float deltaY = lastMousePosition.y - Input.mousePosition.y;
        lastMousePosition = Input.mousePosition;  // 更新 lastMousePosition

        progress += deltaY*0.3f * Time.deltaTime;
        progress = Mathf.Clamp01(progress);  // 确保 progress 不会小于0

        // 计算插入旋转和插入旋转-45度之间的插值
        float startAngle = crowbarSocket.transform.eulerAngles.z;
        float endAngle = startAngle + 40f;
        float currentAngle = Mathf.Lerp(startAngle, endAngle, progress);

        // 更新撬棍的旋转角度
        crowbarVisual.rotation = Quaternion.Euler(0f, 0f, currentAngle);

        if (progress >= 1f)
        {
            // 触发撬动完成的逻辑
            Debug.Log("Crowbar action completed.");
            isPryingCompleted = true;
            ResetCrowbar();
        }
    }
    else
    {
        RectTransform canvasRectTransform = (RectTransform)transform.root;
        Vector3 worldPoint;
        if (RectTransformUtility.ScreenPointToWorldPointInRectangle(canvasRectTransform, eventData.position, eventData.pressEventCamera, out worldPoint))
        {
            transform.position = worldPoint;
        }
    }

    lastMousePosition = Input.mousePosition;
}
    public void OnEndDrag(PointerEventData eventData)
    {
        if (IsInDialogue) return;

        if (isInserted)
        {
            ResetCrowbarProgress();
        }
        else
        {
            float snappingRange = 1f; // You might need to adjust this for WorldSpace Canvas
            if (Vector3.Distance(transform.position, crowbarSocket.transform.position) <= snappingRange)
            {
                transform.position = crowbarSocket.transform.position;
                crowbarVisual.rotation = crowbarSocket.transform.rotation;
                isInserted = true;
                //crowbarSocket.Deactivate();
            }
            else
            {
                transform.DOMove(crowbarInPosition.position, 0.1f).OnComplete(() =>
                {
                    //crowbarSocket.Deactivate();
                });
            }
        }
    }

    private void ResetCrowbarProgress()
    {
        //isInserted = false;
        progress = 0f;
        crowbarVisual.rotation = Quaternion.Euler(0f, 0f, 180f);
    }
    private void ResetCrowbar()
    {
        isInserted=false;
        progress = 0f;
        crowbarVisual.rotation = startRotation;
        //isPryingCompleted = false;
        transform.DOMove(crowbarInPosition.position, 0.1f);  
    }
}