using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.IO;
using System;

public class VideoTest : MonoBehaviour
{
    public string m_Path;
    public FileInfo[] m_FileInfos;
    public GameObject m_VideoItemPrefab;
    // Start is called before the first frame update
    void Start()
    {
        m_FileInfos = LoadLocalFile();
        //m_DeleteButton.onClick.AddListener(OnDeleteButton);
        //m_ExitSelectionButton.onClick.AddListener(OnExitSelectionMode);
        ReadFileInfos();
    }

    public List<string> tempStorageName = new List<string>();
    public List<DateTime> cdateTimes = new List<DateTime>();
    public List<VideoInformation> VideoInformations = new List<VideoInformation>();

    public void ReadFileInfos()
    {
        for (int i = 0; i < m_FileInfos.Length; i++)
        {
            if (m_FileInfos[i].Name.EndsWith(".mp4"))
            {
                VideoInformation information = new VideoInformation(m_FileInfos[i].CreationTime, m_FileInfos[i].Name, m_FileInfos[i].FullName, m_FileInfos[i]);
                VideoInformations.Add(information);
            }
        }
        //以时间排序
        for (int j = 1; j <= VideoInformations.Count - 1; j++)
        {
            for (int i = 0; i < VideoInformations.Count - j; i++)
            {
                if (VideoInformations[i + 1].CreationTime > VideoInformations[i].CreationTime)
                {
                    VideoInformation temp = VideoInformations[i];
                    VideoInformations[i] = VideoInformations[i + 1];
                    VideoInformations[i + 1] = temp;
                }
            }
        }

        for (int i = 0; i < VideoInformations.Count; i++)
        {
            InstantiateVideoItem(VideoInformations[i].m_VideoName, VideoInformations[i].m_VideoPath, VideoInformations[i].m_FileInfo);
        }
    }

    /// <summary>
    /// 实例化视频物体
    /// </summary>
    /// <param name="info"></param>
    /// <param name="path"></param>
    public void InstantiateVideoItem(string info, string path, FileInfo fileinfo)
    {
        string practice = "";
        string ship = "";
        string subject = "";
        string user = "";
        #region
        //string time = "";
        //int YY = 0;
        //int MM = 0;
        //int DD = 0;
        //int SS = 0;
        //int hh = 0;
        //int mm = 0;
        string[] infos = info.Split('$');
        if (infos.Length == 6)
        {
            practice = infos[1];
            ship = infos[2];
            subject = infos[3];
            user = infos[4];
            //time = infos[5];
            //string[] times = time.Split('-');
            //YY = int.Parse(times[1]);
            //MM = int.Parse(times[2]);
            //DD = int.Parse(times[3]);
            //SS = int.Parse(times[4].TrimEnd('s'));
            //hh = SS / 3600;
            //mm = (SS - hh * 3600) / 60;
        }
        #endregion

        GameObject go = Instantiate(m_VideoItemPrefab, transform);
        VideoItem tempVI = go.GetComponent<VideoItem>();
        tempVI.m_Practice = practice;
        tempVI.m_Ship = ship;
        tempVI.m_Subject = subject;
        tempVI.m_User = user;
        //string temptime = string.Format("{0}/{1}/{2}", YY.ToString(), MM.ToString(), DD.ToString());
        //tempVI.m_Time = temptime;
        tempVI.m_Time = fileinfo.CreationTime.ToString();
        string[] ts = (fileinfo.LastWriteTime - fileinfo.CreationTime).ToString().Split(':');
        int s = (int)float.Parse(ts[2]);
        tempVI.m_Length = string.Format("{0}:{1}:{2:D2}", ts[0], ts[1], s);

        tempVI.m_MyName = info;
        //string[] folders = path.Split('\\');
        //Debug.Log("生成"+folders.Length);
        //string folder="";
        //for (int i = 0; i < folders.Length; i++)
        //{
        //    if (folders[i].Trim().Equals("ScreenCaptures"))
        //        tempVI.m_Folder = folder = folders[i + 1];
        //}
        tempVI.m_Folder = fileinfo.Directory.Name;
        tempVI.m_MyPath = path;
        //tempVI.GetComponentInChildren<Text>().text = string.Format("{0}_{1}_{2}\n{3} {4:d2}:{5:d2}", user, subject, practice, temptime, hh, mm);
        tempVI.GetComponentInChildren<Text>().text = string.Format("{0}_{1}_{2}\n{3}", user, subject, practice, tempVI.m_Time);
        //  m_TotalVideoItems.Add(tempVI);

        //  SetTexture(subject, (sprite) => { tempVI.m_ThumbnailImage.sprite = sprite; });

        //自动截取屏幕，读取截取文件
        //string pngpath = Path.GetFullPath(Path.Combine(Application.dataPath,"..", "PrintScreens", folder, info.Split('.')[0]+".png"));//图片地址
        //StartCoroutine(LoadTexture(pngpath, (texture) => { tempVI.m_RawImage.texture = texture; }));

    }

    /// <summary>
    /// 获取图片
    /// </summary>
    /// <param name="url"></param>
    /// <param name="callback"></param>
    /// <returns></returns>
    IEnumerator LoadTexture(string url, Action<Texture> callback)
    {
        Debug.Log(url);
        WWW www = new WWW(url);
        yield return www;
        if (www.isDone)
        {
            if (www.texture)
                callback?.Invoke(www.texture);
        }
    }



    public Queue<VideoItem> videoItemsque = new Queue<VideoItem>();

   static string ScreenCapturePath;
    public static FileInfo[] LoadLocalFile()
    {
        FileInfo[] fileInfos = new FileInfo[0];
        ScreenCapturePath = System.IO.Path.GetFullPath(
            System.IO.Path.Combine(Application.streamingAssetsPath, 
            "ScreenCaptures")
        );
        if (Directory.Exists(ScreenCapturePath))
        {
            DirectoryInfo direction = new DirectoryInfo(ScreenCapturePath);
            fileInfos = direction.GetFiles("*", SearchOption.AllDirectories);
        }
        else
            Debug.LogError("路径‘" + ScreenCapturePath + "’不存在!");
        return fileInfos;
    }
}


/// <summary>
/// 视频信息类
/// </summary>
public class VideoInformation
{
    public DateTime CreationTime;
    public string m_VideoName;
    public string m_VideoPath;
    public FileInfo m_FileInfo;

    public VideoInformation(DateTime time, string name, string path, FileInfo fileInfo)
    {
        CreationTime = time;
        m_VideoName = name;
        m_VideoPath = path;
        m_FileInfo = fileInfo;
    }
}