using System.Collections;
using System.Collections.Generic;
using UnityEngine;

//这个类是用来加载视频和MR的
public class LoadPrefabManager : MonoBehaviour {


    public static LoadPrefabManager Instance;
    [SerializeField]
    private Transform WorldParent;
    [SerializeField]
    private GameObject LoadingObj;//加载
    private GameObject curObj;//当前放置在场景里的预制件

    private void Awake()
    {
        Instance = this;
    }

    void Start () {
        if (LoadingObj != null)
            LoadingObj.gameObject.SetActive(false);
    }
	
	// Update is called once per frame
	void Update () {
        RefreshLoading();
    }

    private void RefreshLoading()
    {
        if(Time.realtimeSinceStartup < startLoadingTime + minLoadigTime)
        {
            if (LoadingObj != null && !LoadingObj.activeSelf)
            {
                LoadingObj.gameObject.SetActive(true);
            }
        }
        else
        {
            if (LoadingObj != null && LoadingObj.activeSelf)
            {
                LoadingObj.gameObject.SetActive(false);
            }
            if(!isLoading && curObj != null && !curObj.gameObject.activeSelf)
            {
                curObj.gameObject.SetActive(true);
                //同步播放数据
                TimelinePlayable timeObj = curObj.GetComponentInChildren<TimelinePlayable>();
                if(timeObj != null)
                {
                    CDebug.Log("TimelinePlayable 找到 同步播放数据");
                    timeObj.InitPlayableData(objData as ItemClickData);
                }
                GameBaseController gameControlObj = curObj.GetComponentInChildren<GameBaseController>();
                if (gameControlObj != null)
                {
                    gameControlObj.InitData(objData as MRData);
                }
                MessageCenterController.Instance.Broadcast(GameEnum.MESSAGE_PREFAB_LOAD_FINISH_SHOW, objData);//加载完成 显示UI
            }
        }
    }

    public void ResetObj()
    {
        if (curObj != null)
        {
            GameObject.Destroy(curObj);//直接删除
        }
    }

    private System.Object objData;
    public void LoadPrefab(ItemClickData data)
    {
        if(isLoading)
        {
            return;
        }
        /*
        if (LoadingObj != null)
            LoadingObj.gameObject.SetActive(true);
            */
        MessageCenterController.Instance.Broadcast(GameEnum.MESSAGE_HIDE_COURSE);
        objData = data;
        //float test_time = Time.realtimeSinceStartup;
        StartCoroutine(AddPrefab(GetItemClickDataStr(data)));
        //CDebug.Log("测试时间"  + (Time.realtimeSinceStartup - test_time));
    }

    public void LoadPrefab(MRData data)
    {
        if (isLoading)
        {
            return;
        }
        MessageCenterController.Instance.Broadcast(GameEnum.MESSAGE_HIDE_COURSE);
        objData = data;
        StartCoroutine(AddPrefab(GetMRDataStr(data.mrName)));
    }

    private bool isLoading = false;
    private float startLoadingTime = float.MinValue;//开始加载的时间点
    private float minLoadigTime = 4.5f;//最低的加载时间  在这个时间内播放加载的动画

    private string GetItemClickDataStr(ItemClickData data)
    {
        string format_str = GameEnum.ResourcePath + "{0}/{1}_{2}_{3}_{4}";
        return string.Format(format_str, data.firstId, data.firstId, data.secondId, data.thirdId, data.forthId + 1);
    }

    private string GetMRDataStr(string data)
    {
        string format_str = "Biology/" + "{0}";
        return string.Format(format_str, data);
    }

    IEnumerator AddPrefab(string obj_path)
    {
        yield return null;
        isLoading = true;
        if (curObj != null && curObj.name.Equals(obj_path))
        {

        }
        else
        {
            if (LoadingObj != null && LoadingObj.activeSelf)
            {
                LoadingObj.gameObject.SetActive(false);
            }
            startLoadingTime = Time.realtimeSinceStartup;
            if (curObj != null)
            {
                GameObject.Destroy(curObj);//直接删除
            }
            float start_time = Time.realtimeSinceStartup;
            Object res_obj = Resources.Load(obj_path);
            if (res_obj == null)
            {
                Debug.Log("资源不存在"  + obj_path);
                MessageCenterController.Instance.Broadcast(GameEnum.MESSAGE_SHOW_MSG_POP, obj_path + "资源不存在");
                MessageCenterController.Instance.Broadcast(GameEnum.MESSAGE_PREFAB_LOAD_FINISH_SHOW, objData);//放弃加载 显示UI
            }
            else
            {
                Debug.Log("加载资源的时间 " + (Time.realtimeSinceStartup - start_time) + "  path " + obj_path);
                start_time = Time.realtimeSinceStartup;
                curObj = GameObject.Instantiate(res_obj) as GameObject;
                curObj.transform.parent = WorldParent;
                curObj.transform.localEulerAngles = Vector3.one;//不允许有默认的位置
                curObj.transform.localPosition = Vector3.zero;//不允许有默认的位置
                curObj.name = obj_path;
                curObj.gameObject.SetActive(false);
                Debug.Log("实例化对象的时间 " + (Time.realtimeSinceStartup - start_time));
            }
        }
        isLoading = false;
        /*
        if(LoadingObj != null)
            LoadingObj.gameObject.SetActive(false);
        */
    }
}