using UnityEngine;
using DG.Tweening;

public class RopePullTask : MonoBehaviour
{
    [Header("绑定")]
    public TreeTask treeTask;          // 你的解密任务脚本
    public Transform ropeMesh;         // 绳子本体（用于抖动）
    
    [Header("下拉设置")]
    public float pullThreshold = 0.25f;    // ✅ 下拉触发阈值（米）
    public float followSpeed = 25f;        // 吸附跟随速度

    [Header("抖动参数")]
    public float shakeStrength = 0.05f;
    public float shakeTime = 0.4f;

    [Header("回弹参数")]
    public float returnTime = 0.3f;

    private Transform snapHand;
    private bool isSnapping = false;
    private bool isTriggered = false;

    private float startHandY;
    private Vector3 ropeStartPos;

    private void Start()
    {
        ropeStartPos = ropeMesh.position;
    }

    private void OnTriggerEnter(Collider other)
    {
        if (isTriggered) return;
        if (!other.CompareTag("RightHand")) return;

        snapHand = other.transform;
        startHandY = snapHand.position.y;

        isSnapping = true;

        // ✅ 震动反馈
        MRInput.Ins.VibrateRightController(0.6f, 120);

        // ✅ 初次轻微抖动
        ropeMesh.DOShakePosition(0.2f, 0.02f, 10, 60);
        TriggerPullSuccess();
    }

    private void OnTriggerExit(Collider other)
    {
        if (!other.CompareTag("RightHand")) return;

        isSnapping = false;
        snapHand = null;

        // ✅ 松手回弹
        ropeMesh.DOMove(ropeStartPos, returnTime).SetEase(Ease.OutBack);
    }

    private void Update()
    {
        if (!isSnapping || snapHand == null || isTriggered) return;

        // ✅ 只跟随 XZ，Y 由手控制
        // Vector3 targetPos = new Vector3(
        //     ropeStartPos.x,
        //     snapHand.position.y,
        //     ropeStartPos.z
        // );
        //
        // ropeMesh.position = Vector3.Lerp(
        //     ropeMesh.position,
        //     targetPos,
        //     Time.deltaTime * followSpeed
        // );
        //
        // // ✅ 判断是否下拉到触发距离
        // float pullDistance = startHandY - snapHand.position.y;
        //
        // if (pullDistance >= pullThreshold)
        // {
        //     TriggerPullSuccess();
        // }
    }

    // ===============================
    // ✅ 触发成功逻辑
    // ===============================

    private void TriggerPullSuccess()
    {
        if (isTriggered) return;
        isTriggered = true;
        isSnapping = false;

        Debug.Log("✅ 拉绳成功，触发画卷解密任务！");

        // ✅ 强力震动反馈
        MRInput.Ins.VibrateRightController(1f, 250);

        // ✅ 成功抖动特效
        ropeMesh.DOShakePosition(shakeTime, shakeStrength, 20, 90)
            .OnComplete(() =>
            {
                // ✅ 回弹
                ropeMesh.DOMove(ropeStartPos, returnTime).SetEase(Ease.OutElastic);
            });

        // ✅ 触发你的画卷任务
        if (treeTask != null)
        {
            treeTask.StartTask();
        }
    }
}