using System;
using UnityEngine;
using DefaultNamespace.ProcessMode;
using DG.Tweening;

public class AnimationManagerDemo : MonoBehaviour
{
    public Camera mainCam;

    private Vector3 modelPosTemp;
    private Vector3 modelRotTemp;

    public Transform movingObject; // 验电笔
    public Material blinkMaterial;

    private void Start()
    {
        blinkMaterial = movingObject.GetComponent<MeshRenderer>().material;
    }


    void Update()
    {
        HandleMouseClick();
    }

    private void HandleMouseClick()
    {
        if (Input.GetMouseButtonDown(0))
        {
            Ray ray = mainCam.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out RaycastHit hit))
            {
                modelPosTemp = movingObject.localPosition;
                modelRotTemp = movingObject.localEulerAngles;
                movingObject.SetParent(null);

                AnimationManager.AddAnimationGroup("MoveAndBlink", sequence =>
                {
                    sequence.Append(movingObject.DOMove(hit.point, 1)
                        .OnUpdate(() => { AdjustObjectRotation(); })
                        .OnComplete(() => { BlinkAndHide(); }));
                });

                // 播放动画
                AnimationManager.PlayAnimationGroup("MoveAndBlink");
            }
        }
    }

    private void BlinkAndHide()
    {
        AnimationManager.AddAnimationGroup("BlinkAndHide", blinkSequence =>
        {
            float dura = 0.3f;
            blinkSequence.Append(blinkMaterial.DOFloat(1, "_SwitchOfEmi", dura))
                .AppendInterval(dura)
                .Append(blinkMaterial.DOFloat(0, "_SwitchOfEmi", dura))
                .AppendInterval(dura)
                .Append(blinkMaterial.DOFloat(1, "_SwitchOfEmi", dura))
                .AppendInterval(dura)
                .Append(blinkMaterial.DOFloat(0, "_SwitchOfEmi", dura))
                .AppendInterval(dura).OnComplete(() =>
                {
                    // movingObject.SetParent(mainCam.transform);
                    // movingObject.localPosition = modelPosTemp;
                    // movingObject.localEulerAngles = modelRotTemp;
                });
            ;
        }); // 添加闪烁动画组
        AnimationManager.PlayAnimationGroup("BlinkAndHide"); // 播放闪烁动画
    }


    private void AdjustObjectRotation()
    {
        Vector3 directionToCamera = mainCam.transform.position - movingObject.position;

        // 计算相机与模型在垂直方向的关系，确定是在上方还是下方
        bool isCameraAbove = mainCam.transform.position.y > movingObject.position.y;


        // 计算相机与模型在Y轴的角度
        float verticalAngle = Vector3.Angle(Vector3.up, directionToCamera.normalized);

        // 根据相机在模型上方或下方来设置X轴的旋转角度
        float rotationValue = isCameraAbove ? 90 : -90;
        float xRotation = Mathf.Lerp(60, 0, 1 - verticalAngle / rotationValue);

        // 计算Y轴旋转角度以确保笔的笔尖正确朝向相机
        Vector3 forward = new Vector3(directionToCamera.x, 0, directionToCamera.z).normalized;
        float yRotation = Mathf.Atan2(forward.x, forward.z) * Mathf.Rad2Deg;

        // 判断相机是在碰撞器上方还是下方，设置Z轴旋转角度
        float zRotation = isCameraAbove ? 0 : 180;

        // 应用所有旋转
        movingObject.rotation = Quaternion.Euler(xRotation, yRotation, zRotation);
    }
}