using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using TMPro;
using AibisDream;
using Cinemachine;

public class MouseFollowAndZoom : MonoBehaviour
{
    public CinemachineVirtualCamera virtualCamera;
    public GameObject targetIndicator; // UI 目标框
    public TMP_Text targetNameText; // 显示目标名称的文本
    public float zoomInScale = 1.5f; // 缩放倍数
    public float zoomDuration = 1.0f; // 缩放持续时间（减慢）
    public Vector2 sceneBoundsMin; // 场景边界的左下角
    public Vector2 sceneBoundsMax; // 场景边界的右上角
    private EyeSystem eyemanager;
    private EyeTarget currentTarget; // 当前目标
    private bool isActive = false;
    private bool isLocked = false;

    // 读写访问
    public void SetIsActive(bool value)
    {
        isActive = value;
    }

    public void SetIsLock(bool value)
    {
        isLocked = value;
    }


    void Start()
    {
        targetIndicator.SetActive(false); // 初始时隐藏目标框
        eyemanager = FindObjectOfType<EyeSystem>();
        if (eyemanager == null)
        {
            Debug.LogError("EyeManager instance not found in the scene.");
        }
    }

    void Update()
    {
        if (!isActive)
        {
            targetIndicator.SetActive(false);
            return;
        }

        HandleTargetIndicator(); // 显示指示器 
        if (isLocked) return;
        HandleMouseMovement();
        UpdateCurrentTarget(); // 更新当前目标
    }

    private Vector3 currentOffset; // 当前的偏移量

    void HandleMouseMovement()
    {
        
    }

    void UpdateCurrentTarget()
    {
        // 获取鼠标位置
        Vector3 mousePosition = Input.mousePosition;
        Vector3 worldPosition = Camera.main.ScreenToWorldPoint(mousePosition);
        RaycastHit2D hit = Physics2D.Raycast(worldPosition, Vector2.zero);

        // 检查是否有目标
        if (hit.collider != null && hit.collider.CompareTag("EyeTarget"))
        {
            currentTarget = hit.collider.GetComponent<EyeTarget>(); // 更新当前目标

            // 处理鼠标点击事件
            if (Input.GetMouseButtonDown(0))
            {
                Debug.Log("点击目标触发了");
                if (currentTarget != null)
                {
                    eyemanager.SetTarget(currentTarget); // 设置目标   
                }
                else
                {
                    Debug.LogWarning("The collider does not have an EyeTarget component.");
                }
            }
        }
        else
        {
            currentTarget = null; // 如果没有目标，设置为 null
        }
    }

    void HandleTargetIndicator()
    {
        // if (currentTarget == null)
        // {
        //     targetIndicator.SetActive(false); // 隐藏指示器
        //     return;
        // }

        // // 获取目标的 BoxCollider2D
        // BoxCollider2D boxCollider = currentTarget.GetComponent<BoxCollider2D>();
        // if (boxCollider != null)
        // {
        //     Vector3 boxCenter = boxCollider.bounds.center;
        //     Vector3 boxSize = boxCollider.bounds.size;

        //     // 转换为屏幕坐标
        //     Vector3 screenCenter = viewCamera.WorldToScreenPoint(boxCenter);
        //     Vector2 screenSize = viewCamera.WorldToScreenPoint(boxCenter + boxSize) -
        //                          viewCamera.WorldToScreenPoint(boxCenter);

        //     // 设置目标框位置和大小
        //     RectTransform indicatorRectTransform = targetIndicator.GetComponent<RectTransform>();
        //     indicatorRectTransform.position = screenCenter;
        //     indicatorRectTransform.sizeDelta = screenSize;

        //     // 设置目标名称
        //     targetNameText.text = currentTarget.name;

        //     // 显示指示器
        //     targetIndicator.SetActive(true);
        // }
    }

    public void SetIndicatorTarget(EyeTarget target)
    {
        currentTarget = target;
    }

    void OnDrawGizmos()
    {
        // 设置 Gizmos 颜色
        Gizmos.color = Color.red;

        // 绘制场景边界
        Vector3 bottomLeft = new Vector3(sceneBoundsMin.x, sceneBoundsMin.y, 0);
        Vector3 topRight = new Vector3(sceneBoundsMax.x, sceneBoundsMax.y, 0);

        // 绘制边界框
        Gizmos.DrawLine(bottomLeft, new Vector3(bottomLeft.x, topRight.y, 0));
        Gizmos.DrawLine(bottomLeft, new Vector3(topRight.x, bottomLeft.y, 0));
        Gizmos.DrawLine(topRight, new Vector3(bottomLeft.x, topRight.y, 0));
        Gizmos.DrawLine(topRight, new Vector3(topRight.x, bottomLeft.y, 0));
    }
}