using System.Collections;
using UnityEngine;
using BigSpace.XRCore.Base;
using UnityEngine.SceneManagement;
using BigSpace.XRCore.Scene;
using System;
using BigSpace.XRCore.Event;
using BigSpace.Logic;

public class SceneMgr : MonoSingleton<SceneMgr> 
{
    private Coroutine _currentCoroutine; // 当前正在进行的场景切换协程
    private ISceneDataProvider _sceneDataProvider; // 场景数据提供者
    private string _sceneName;
    public int nowSceneId = 0;   //当前正式的场景(不包括中间过度场景)
    public bool isCanMove = true;//是否可以用手柄走动
    public bool isTrigger = false;
    /// <summary>
    /// 初始化场景管理器
    /// </summary>
    /// <param name="sceneDataProvider">场景数据提供接口</param>
    public void Initialize(ISceneDataProvider sceneDataProvider)
    {
        _sceneDataProvider = sceneDataProvider;
    }

    // Start is called before the first frame update
    void Start()
    {
        SceneManager.sceneLoaded += OnSceneLoaded;
    }


    private void OnSceneLoaded(Scene arg0, LoadSceneMode arg1)
    {
        if (_sceneName == arg0.name)
        {
            //Debug.Log("======================清了内存");
            Resources.UnloadUnusedAssets();
            GC.Collect();
        }
    }

    public void LoadScene(int sceneId)
    {
        if (_currentCoroutine != null)
        {
            Debug.LogWarning("A scene transition is already in progress.");
            return;
        }
        // 获取场景数据
        var loadingData = _sceneDataProvider.GetLoadingSceneData(sceneId);
        if (_sceneName != null && _sceneName == loadingData.SceneName) //同一个场景就不跳转
            return;

        _sceneName = loadingData.SceneName;
        isTrigger = false;
        Debug.Log("开始跳转场景"+ _sceneName);
        GlobalEventMgr.Dispatch(GameEvent.EventSetHandMove, 1);
        _currentCoroutine = PersistenceCoroutineMgr.Instance.StartCoroutine(HandleSceneTransition(loadingData));
    }

    public IEnumerator HandleSceneTransition(SceneData loadingData)
    {
        // 淡出
        GlobalEventMgr.Dispatch(GameEvent.EventChangeScence);
        ChangSceneSphereMgr.Instance.ShowChangeSecne(true);
        yield return new WaitForSeconds(GameDataManage.Instance.outFadeTime);
        //Debug.Log("ok淡出===========================" + loadingData.id + "||" + loadingData.LoadingSceneName + "||" + loadingData.SceneName);
        if (!string.IsNullOrEmpty(loadingData.LoadingSceneName))
        {
            yield return SceneManager.LoadSceneAsync(loadingData.LoadingSceneName);

            //旧UI相关
            //if (loadingData.SceneName != "Waiting" && loadingData.SceneName != "Scene_07") //关于等待出场景文字 
            //{ 
            //    //Debug.Log("跳谁:" + loadingData.id + "||" + loadingData.SceneName);
            //    GlobalEventMgr.Dispatch(GameEvent.EventShowUI, loadingData.id % 10000);

            //    yield return new WaitForSeconds(4f);
            //}
        }

        //Debug.Log("开始跳目标场景.................."+ loadingData.SceneName);
        yield return SceneManager.LoadSceneAsync(loadingData.SceneName);
        _currentCoroutine = null;
    }
}