using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.UI;
using System.Threading.Tasks;
public class Panel2 : MonoBehaviour
{
    public static Panel2 instance;
    private Toggle toggle;//角色名是否出现
    private Button follow;//跟随查按钮
    private Button end;//结束按钮
    private Dropdown dropdown;
    private int optionCount;  // 用于存储传入的确定Dropdown选项数量的参数

    private List<GameObject> nameImage; // 存储所有角色标签的子物体
    private GameObject peopleposition;

    public Camera godView; // 上帝视角的位置
    public List<Camera> playerCameras = new List<Camera>(); // 存储每个角色的摄像机
    private bool isGodView = true; // 是否为上帝视角
    public int currentCameraIndex = -1;

    public List<GameObject> target;//目标
    public GameObject panel1_22;
    public GameObject panel1_33;
    
    // Start is called before the first frame update
    void Start()
    {
        instance = this;
        godView=GameObject.Find("TopCamera").GetComponent<Camera>();
        toggle =transform.Find("right/under/Toggle").GetComponent<Toggle>();
        toggle.onValueChanged.AddListener(OnToggleValueChanged);
        toggle.isOn = true;
        dropdown =transform.Find("left/Dropdown").GetComponent<Dropdown>();
        follow=transform.Find("left/Follow").GetComponent<Button>();
        follow.onClick.AddListener(FollowBtn);
        end = transform.Find("left/btn_enddrill").GetComponent<Button>();
        end.onClick.AddListener(EndBtn);
        
        peopleposition = GameObject.Find("peopleposition").gameObject;
        //获取所有子物体中的 Button 组件
        nameImage = new List<GameObject>();
        // 遍历 peopleposition 的子物体
        foreach (Transform child in peopleposition.transform)
        {
            // 遍历子物体的子物体
            foreach (Transform secondLevelChild in child)
            {
                // 遍历子物体的子物体的子物体
                foreach (Transform thirdLevelChild in secondLevelChild)
                {
                    // 获取 Image 组件
                    Image imageComponent = thirdLevelChild.GetComponent<Image>();
                    if (imageComponent != null)
                    {
                        nameImage.Add(imageComponent.gameObject); // 添加到列表
                    }
                }
            }
        }
        // 获取所有标签为 "Player" 的物体
        GameObject[] players = GameObject.FindGameObjectsWithTag("Player");

        // 遍历每个 Player，找到子物体中的摄像机
        foreach (GameObject player in players)
        {          
            target.Add(player.gameObject);
        }
        SetOptionCount(target.Count);
            // 默认执行一次切换
            OnToggleValueChanged(toggle.isOn);

    }
    // 切换到指定索引的摄像机
    public void SwitchToCamera(int index)
    {
        
        isGodView = false;
        // 将摄像机设为 target[index] 的子物体
        godView.transform.SetParent(target[index].transform);
        // 重置摄像机的位置和旋转
        godView.transform.localPosition = (Vector3.zero+new Vector3(0, 1.5f, -1));
        godView.transform.localRotation = Quaternion.identity;
  
        // 让摄像机朝向父物体
        godView.transform.LookAt(target[index].transform.position+ new Vector3(0, 1.5f,0));

    }
    // 用于外部传入参数来设置Dropdown选项数量的方法
    public void SetOptionCount(int count)
    {
        optionCount = count;
        dropdown.ClearOptions();
        // 创建一个临时的字符串列表用于添加选项内容
        var options = new System.Collections.Generic.List<string>();
        for (int i = 0; i < optionCount; i++)
        {
            options.Add("角色 " + (i + 1));  // 简单添加类似"角色 1"、"角色 2"这样的选项名称，可按需修改
        }
        dropdown.AddOptions(options);
    }
    // Update is called once per frame
    void Update()
    {
       
    }
    // Toggle状态变化时调用的方法
    void OnToggleValueChanged(bool isOn)
    {
        // 根据Toggle的状态控制所有"nameImage"子物体的显示与隐藏
        foreach (var bgObject in nameImage)
        {
            bgObject.SetActive(isOn); // 显示或隐藏
        }
    }
    void FollowBtn()
    {
        //切换到跟随模式,显示角色视角
        //peopleposition.SetActive(false);
        int selectedIndex = dropdown.value;
        Debug.Log("进入角色" + (selectedIndex+1) + "视角");

        //godView.GetComponent<Camera>().orthographic = false;
        SwitchToCamera(selectedIndex);//转入视角
        panel1_22.gameObject.SetActive(false);
        panel1_33.gameObject.SetActive(true);
        //Game.uiManager.CloseUI("Panel1_2");
        //Game.uiManager.ShowUI<Image>("Panel1_3");
    }
 
    void EndBtn()
    {
        //结束演习
        Game.uiManager.ShowUI<Image>("PoPhost");
    } 
}