using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Video;
using System.Text;
using System;

/// <summary>
/// 多媒体同步，适用于图片，ppt，视频集成在一个材质上
/// </summary>
public class FunctionSync_Media : MonoBehaviour
{
    public static Dictionary<string, FunctionSync_Media> functionSync_MediaDic = new Dictionary<string, FunctionSync_Media>();

    /// <summary>
    /// type，编号，如果为ppt，索引
    /// </summary>
    public string Id;
    private VideoPlayer videoPlayer;
    private Renderer renderer;

    /// <summary>
    /// 关闭的texture
    /// </summary>
    private Texture nullTexture;

    /// <summary>
    /// 当前视频播放时间
    /// </summary>
    [HideInInspector]
    public double PlayTime;

    private int currentTextureNum;
    private int currentPPTnum;
    [HideInInspector]
    public  int currentPPTsubNum;
    private int currentVideoNum;
    [HideInInspector]
    public byte videoState;

    /// <summary>
    /// id流
    /// </summary>
    private byte[] idbytes;
    public void Init()
    {
        renderer = GetComponent<Renderer>();
        videoPlayer = GetComponent<VideoPlayer>();
        nullTexture = renderer.material.mainTexture;
        Id = "media_" + gameObject.name;
        idbytes = Encoding.UTF8.GetBytes(Id);
        functionSync_MediaDic.Add(Id, this);
    }

    float time = 0;
    private void Update()
    {
        //学生回拉,老师不在视频不播放
        if (!GameManage.Instance.is单机模式)
        {
            //if (!LoadManage.Instance.loadPackage.isOwner)
            //{
            //    if (videoPlayer.isPlaying && videoPlayer.time > PlayTime + 1)
            //    {
            //        videoPlayer.time = PlayTime + 1;
            //    }
            //}
            //else
            {
                if (videoPlayer.isPlaying && videoState==1)
                {
                    time += Time.deltaTime;
                    if (time > 1)
                    {
                        time = 0;
                        PlayTime = videoPlayer.time;
                        //发送时间
                        SetVideo(currentVideoNum, 1, PlayTime);
                    }
                }
            }
        }
    }
   
    public void SetTexture(int num)
    {
        List<byte> tmp = new List<byte>();
        //id
        tmp.AddRange(BitConverter.GetBytes(idbytes.Length));
        tmp.AddRange(idbytes);
        //图片
        tmp.Add(0);
        tmp.AddRange(BitConverter.GetBytes(num));
        LoadManage.Instance.RSclient.Send(LoadManage.Instance.currentRoomArea, 10010, tmp.ToArray());
    }
    public void SetPPT(int num,int index)
    {
        List<byte> tmp = new List<byte>();
        //id
        tmp.AddRange(BitConverter.GetBytes(idbytes.Length));
        tmp.AddRange(idbytes);
        //ppt
        tmp.Add(2);
        tmp.AddRange(BitConverter.GetBytes(num));
        tmp.AddRange(BitConverter.GetBytes(index));
        LoadManage.Instance.RSclient.Send(LoadManage.Instance.currentRoomArea, 10010, tmp.ToArray());
    }
    public void SetVideo(int num,byte isOpen,double playtime)
    {
        List<byte> tmp = new List<byte>();
        //id
        tmp.AddRange(BitConverter.GetBytes(idbytes.Length));
        tmp.AddRange(idbytes);
        //视频
        tmp.Add(1);
        tmp.AddRange(BitConverter.GetBytes(num));
        tmp.Add(isOpen);
        tmp.AddRange(BitConverter.GetBytes(playtime));
        LoadManage.Instance.RSclient.Send(LoadManage.Instance.currentRoomArea, 10010, tmp.ToArray());
    }

    public void CallBack(byte[] data,bool isJoinRoom=false)
    {
        int num=BitConverter.ToInt32(data,1+4+idbytes.Length);
        if (data[4 + idbytes.Length] == 0)
        {
            currentTextureNum = num;
            //type,num
            //图片
            videoPlayer.Stop();
            //下载
            //StartCoroutine(GetTexture(MediaPanel.instance.dicPicture[num].url, (a,tex) =>
            //{
            //    if (a)
            //    {
            //        renderer.material.mainTexture = tex;
            //    }
            //    else
            //    {
            //        Debug.LogError("下载图片失败：" + num);
            //    }
            //}));
        }
        else if(data[4 + idbytes.Length] == 1)
        {
            currentVideoNum = num;
            videoState = data[5+4+idbytes.Length];
            //if (videoPlayer.url != MediaPanel.instance.dicVideo[num].url)
            //{
            //    videoPlayer.url = MediaPanel.instance.dicVideo[num].url;
            //}
            //type,num,开关，播放时间
            //视频
            if (data[5 + 4 + idbytes.Length] ==0)
            {
                //关闭
                videoPlayer.Stop();
                PlayTime = 0;
            }
            else if(data[5 + 4 + idbytes.Length] ==1)
            {
                //开启
                videoPlayer.playbackSpeed = 1;
                if (!videoPlayer.isPlaying)
                {
                    videoPlayer.Play();
                }
                PlayTime = videoPlayer.time;
            }
            else if(data[5 + 4 + idbytes.Length] ==2)
            {
                //暂停
                videoPlayer.playbackSpeed = 0;
                PlayTime = videoPlayer.time;
            }

            if (isJoinRoom)
            {
                videoPlayer.time = BitConverter.ToDouble(data, 6 + 4 + idbytes.Length);
            }
            else
            {
                //if (!LoadManage.Instance.loadPackage.isOwner)
                //{
                //    videoPlayer.time = BitConverter.ToDouble(data, 6 + 4 + idbytes.Length);
                //}
            }
        }
        else if(data[4 + idbytes.Length] == 2)
        {
            currentPPTnum = num;
            //type,num,索引
            //PPT
            int index = BitConverter.ToInt32(data,5 + 4 + idbytes.Length);
            currentPPTsubNum = index;
            videoPlayer.Stop();

            if (index < 0)
            {
                //关闭ppt
                renderer.material.mainTexture = nullTexture;
            }
            else
            {
                //无索引
                //下载
                //StartCoroutine(GetTexture(MediaPanel.instance.dicPPT[num].subTextures[index], (a, tex) =>
                //{
                //    if (a)
                //    {
                //        //pptTexDic[num].ppttextureDic.Add(index, tex);
                //        renderer.material.mainTexture = tex;
                //    }
                //    else
                //    {
                //        Debug.LogError("下载PPT图片失败：" + num);
                //    }
                //}));
            }
        }
    }

    /// <summary>
    /// 下载图片
    /// </summary>
    /// <returns></returns>
    IEnumerator GetTexture(string url1, Action<bool,Texture> callback)
    {
        WWW www1 = new WWW(url1);
        yield return www1;
        if (www1.isDone)
        {
            if (!string.IsNullOrEmpty(www1.error))
            {
                Debug.LogError(www1.error);
                MessagePanel.ShowMessage("获取图片失败：" + www1.error, GameObject.Find("Canvas").transform, a => { });
                callback.Invoke(false,null);
            }
            else
            {
                Debug.Log("下载图片成功");
                callback.Invoke(true,www1.texture);
            }
        }
    }
}

/// <summary>
/// ppt信息
/// </summary>
public class PPTtextureDate
{
    public Dictionary<int, Texture> ppttextureDic = new Dictionary<int, Texture>();
}