using DG.Tweening;
using System.Collections;
using UnityEngine;
using UnityEngine.SceneManagement;

public class SceneLoader : MonoBehaviour
{
    /// <summary>
    /// 场景切换控制
    /// </summary>
    public static SceneLoader instance;
    /// <summary>
    /// 要加载的场景名称
    /// </summary>
    public string sceneName; 
    /// <summary>
    /// 异步操作
    /// </summary>
    private AsyncOperation asyncOperation;
    /// <summary>
    /// 是否正在加载场景
    /// </summary>
    public bool isOnLoad = false;
    /// <summary>
    /// 记录当前场景
    /// </summary>
    public string sceneRecording = "DongYing_Main";
    /// <summary>
    /// 
    /// </summary>
    public string ShowModerName;

    public string CeShistr;
    public string CeShistr2;
    private void Awake()
    {
        if (instance == null)
        {
            instance = this;
            DontDestroyOnLoad(gameObject);
            Application.ExternalCall("animationFinish");
        }
        else
        {
            Destroy(gameObject);
        }
    }

    private void Update()
    {
       #if UNITY_EDITOR
        if (Input.GetKeyDown(KeyCode.B))
        {
            MasterShot();
        }
        
        if (Input.GetKeyDown(KeyCode.N))
        {
            SwitchTheSceneOfPowerDistributionRoom(CeShistr);
        }

        if (Input.GetKeyDown(KeyCode.M))
        {
            LargeScaleScene(CeShistr2);
        }
#endif
    }

    //前端调用Unity 

    /// <summary>
    /// 主场景
    /// </summary>
    public void MasterShot()
    {
        if (sceneRecording == "DongYing_Main")
        {
            GameManager.CameraMove.ShieldingOperation = true;
            GameManager.CameraMove.ResetTarget();
            Camera.main.transform.DOMove(GameManager.Instance.AllPos[0].position, 1f).OnComplete(() =>
            {
                GameManager.Instance.isShowUI = true;
                GameManager.CameraMove.enabled = true;
                GameManager.CameraMove.Init();
            });
            Camera.main.transform.DORotate(GameManager.Instance.AllPos[0].eulerAngles, 1f);
        }
        else
        {
            LoadScene("1");
        }
    }

    /// <summary>
    /// 单个模型切换
    /// </summary>
    /// <param name="msg">配电房名称</param>
    public void SwitchTheSceneOfPowerDistributionRoom(string msg)
    {
        Debug.Log("配电房切换...:" + msg);
        if(sceneRecording== "DongYing_Main")
        {
            if (isOnLoad) return;
            isOnLoad = true;
            GameManager.Instance.ModerShow(msg);
            switch (msg)
            {
                case "空调":
                    GameManager.CameraMove.ShieldingOperation = true;
                    GameManager.CameraMove.ResetTarget();
                    Camera.main.transform.DOMove(GameManager.Instance.AllPos[2].position, 1f).OnComplete(() =>
                    {
                        ShowModerName = msg;
                        LoadScene("2");
                        
                    });
                    Camera.main.transform.DORotate(GameManager.Instance.AllPos[2].eulerAngles, 1f);
                    break;
                case "配电房1":
                    GameManager.CameraMove.ShieldingOperation = true;
                    GameManager.CameraMove.ResetTarget();
                    Camera.main.transform.DOMove(GameManager.Instance.AllPos[3].position, 1f).OnComplete(() =>
                    {
                        ShowModerName = msg;
                        LoadScene("2");
                    });
                    Camera.main.transform.DORotate(GameManager.Instance.AllPos[3].eulerAngles, 1f);
                    break;
                case "配电房2":
                    GameManager.CameraMove.ShieldingOperation = true;
                    GameManager.CameraMove.ResetTarget();
                    Camera.main.transform.DOMove(GameManager.Instance.AllPos[4].position, 1f).OnComplete(() =>
                    {
                        ShowModerName = msg;
                        LoadScene("2");
                    });
                    Camera.main.transform.DORotate(GameManager.Instance.AllPos[4].eulerAngles, 1f);
                    break;
                case "配电房3":
                    GameManager.CameraMove.ShieldingOperation = true;
                    GameManager.CameraMove.ResetTarget();
                    Camera.main.transform.DOMove(GameManager.Instance.AllPos[5].position, 1f).OnComplete(() =>
                    {
                        ShowModerName = msg;
                        LoadScene("2");
                    });
                    Camera.main.transform.DORotate(GameManager.Instance.AllPos[5].eulerAngles, 1f);
                    break;
                case "照明":
                    GameManager.CameraMove.ShieldingOperation = true;
                    GameManager.CameraMove.ResetTarget();
                    Camera.main.transform.DOMove(GameManager.Instance.AllPos[1].position, 1f).OnComplete(() =>
                    {
                        ShowModerName = msg;
                        LoadScene("2");
                    });
                    Camera.main.transform.DORotate(GameManager.Instance.AllPos[1].eulerAngles, 1f);
                    break;
            }
        }
        else
        {
            ModelDisplay.instance.ModerShow(msg);
            switch (msg)
            {
                case "空调":
                    Movement(ModelDisplay.instance.O[0]);
                    break;
                case "配电房1":
                    Movement(ModelDisplay.instance.O[1]);
                    break;
                case "配电房2":
                    Movement(ModelDisplay.instance.O[2]);
                    break;
                case "配电房3":
                    Movement(ModelDisplay.instance.O[3]);
                    break;
                case "照明":
                    Movement(ModelDisplay.instance.O[4]);
                    break;
            }
        }
        
    }

    /// <summary>
    /// 大场景切换
    /// </summary>
    public void LargeScaleScene(string msg)
    {
        if (sceneRecording == "DongYing_Main")
        {
            GameManager.Instance.ModerShow(msg);
            switch (msg)
            {
                case "科技馆":
                    Movement(GameManager.Instance.MainPos[0]);
                    break;
                case "少年宫":
                    Movement(GameManager.Instance.MainPos[1]);
                    break;
                case "图书馆":
                    Movement(GameManager.Instance.MainPos[2]);
                    break;
                default:
                    break;
            }
        }
        else
        {
            LoadScene("1");
            StartCoroutine(DeferredExecution(msg));
        }
    }

    IEnumerator DeferredExecution(string msg)
    {
        yield return new WaitForSeconds(1);
        if (sceneRecording == "DongYing_Main")
        {
            switch (msg)
            {
                case "科技馆":
                    Movement(GameManager.Instance.MainPos[0]);
                    break;
                case "少年宫":
                    Movement(GameManager.Instance.MainPos[1]);
                    break;
                case "图书馆":
                    Movement(GameManager.Instance.MainPos[2]);
                    break;
                default:
                    break;
            }
        }
    }

    //  不切换场景
    /// <summary>
    /// 场景切换调用
    /// </summary>
    /// <param name="Type"></param>
    public void LoadScene(string Type)
    {
       
        switch (Type) {
            case "1"://返回主场景
                sceneName = "DongYing_Main";
                break;
            case "2"://
                sceneName = "DongYing_Interior";
                break;
            default:
                break;
        }
        StartCoroutine(LoadSceneAsync());
    }

    /// <summary>
    /// 加载切换场景
    /// </summary>
    /// <returns></returns>
    private IEnumerator LoadSceneAsync()
    {
        // 开始异步加载场景
        asyncOperation = SceneManager.LoadSceneAsync(sceneName);
        sceneRecording = sceneName;
        // 阻止场景在加载完毕后自动切换
        asyncOperation.allowSceneActivation = false;
        // 等待场景加载完成
        while (!asyncOperation.isDone)
        {
            // 当加载进度达到0.9时，表示场景已经加载完成
            if (asyncOperation.progress >= 0.9f)
            {
                // 可以根据需要进行一些其他操作，如显示加载完成的提示等

                // 延迟一段时间再切换场景，以确保加载完成的提示显示足够长的时间
                yield return new WaitForSeconds(0.5f);

                // 手动激活场景切换
                asyncOperation.allowSceneActivation = true;
                isOnLoad = false;
                // 跳出协程
                yield break;
            }
            yield return null;
        }
    }
    

    /// <summary>
    /// 移动
    /// </summary>
    /// <param name="vector"></param>
    public void Movement(Transform _movePos)
    {
        Debug.Log(_movePos.transform.name);
        Camera.main.transform.GetComponent<CameraMove>().ShieldingOperation = true;
        Camera.main.transform.GetComponent<CameraMove>().ResetTarget();
        Camera.main.transform.DOMove(_movePos.position, 1).OnComplete(() =>
        {
            Camera.main.transform.GetComponent<CameraMove>().enabled = true;
            Camera.main.transform.GetComponent<CameraMove>().Init();
        });
        Camera.main.transform.DORotate(_movePos.eulerAngles, 1);
        // 在这里编写你点击UI后的逻辑代码
    }
}