using System;
using System.IO;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Shared;
//using HDL_ON.UI;
using HDL_ON.DAL.Net;
using HDL_ON.DAL;
using HDL_ON.Entity;

namespace HDL_ON
{
    public static class FileUtils
    {
        public static string RootPath = Environment.GetFolderPath(System.Environment.SpecialFolder.Personal) + "/";

        /// <summary>
        /// 创建一个住宅的备份文件夹
        /// </summary>
        public static string CreateRegionBackup(string regionId)
        {
            var path = Path.Combine(RootPath, regionId);
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }
            return path + "/";
        }
        /// <summary>
        /// 判断是否已经存在住宅的本地文件夹
        /// </summary>
        public static bool ExistRegion(string regionId)
        {
            var path = Path.Combine(RootPath, regionId);
            return Directory.Exists(path);
        }

        /// <summary>
        /// 删除指定区域里面的所有文件
        /// </summary>
        /// <param name="path">Path.</param>
        public static void DeleteRegionFiles(string path)
        {
            foreach (var fileName in ReadRegionFiles(path))
            {
                File.Delete(Path.Combine(path, fileName));
                MainPage.Log("Del region file :" + fileName);
            }
        }

        /// <summary>
        /// 读取区域文件夹里面的文件
        /// </summary>
        static List<string> ReadRegionFiles(string regionRootPath)
        {
            List<string> listFiles = new List<string>();
            DirectoryInfo TheFolder = new DirectoryInfo(regionRootPath);
            foreach (FileInfo NextFile in TheFolder.GetFiles())
            {
                listFiles.Add(NextFile.Name);
            }
            return listFiles;
        }

        /// <summary>
        /// 恢复区域文件夹里面的文件
        /// </summary>
        public static void RestoreRegionFiles(string regionRootPath)
        {
            DirectoryInfo TheFolder = new DirectoryInfo(regionRootPath);
            int index = 0;
            var thFolders = TheFolder.GetFiles();
            int folderCount = thFolders.Length;
            foreach (FileInfo NextFile in thFolders)
            {
                index++;
                if (NextFile.Name == "headImage.png")
                {
                    continue;
                }
                if (NextFile.Name == "null" || NextFile.Name == "UserConfig" || NextFile.Name == "Register_File" || NextFile.Name == "AccountListDB")
                {
                    continue;
                }
                FileInfo fileInfo = new FileInfo(regionRootPath + NextFile.Name);
                if (fileInfo.Exists)
                {
                    fileInfo.MoveTo(Application.RootPath + NextFile.Name);
                    MainPage.Log("Restroe : " + NextFile.Name);
                }
            }
        }
        
        /// <summary>
        /// 遍历文件
        /// </summary>
        public static List<string> ReadFiles()
        {
            List<string> listFiles = new List<string>();
            DirectoryInfo TheFolder = new DirectoryInfo(RootPath);
            foreach (FileInfo NextFile in TheFolder.GetFiles())
            {
                listFiles.Add(NextFile.Name);
            }
            return listFiles;
        }

        /// <summary>
        /// 更改文件名
        /// </summary>
        /// <param name="oldFilePath">Old file path.</param>
        /// <param name="newFilePath">New file path.</param>
        public static void ReNameFile(string oldFilePath, string newFilePath)
        {
            if (oldFilePath == newFilePath)
            {
                return;
            }
            DeleteFile(newFilePath);
            FileInfo fileInfo = new FileInfo(Application.RootPath + oldFilePath);
            if (fileInfo.Exists)
            {
                fileInfo.MoveTo(Application.RootPath + newFilePath);
            }
        }


        public static void ReNameFoler(string srcFolderPath, string destFolderPath)
        {
            if (srcFolderPath == destFolderPath)
            {
                return;
            }
            var srcPath = Path.Combine(RootPath, srcFolderPath);
#if DEBUG
            DirectoryInfo root = new DirectoryInfo (RootPath);
            foreach (DirectoryInfo d in root.GetDirectories ()) {
                MainPage.Log ("文件夹：" + d.Name);
            }
#endif
            if (Directory.Exists(srcPath))
            {
                DirectoryInfo folder = new DirectoryInfo(srcPath);
                var path = Path.Combine(RootPath, destFolderPath);
                if (Directory.Exists(path))
                {
                    FileAttributes attr0 = File.GetAttributes(path);
                    if (attr0 == FileAttributes.Directory)
                    {
                        Directory.Delete(path, true);
                    }
                    else
                    {
                        File.Delete(path);
                    }
                }
                folder.MoveTo(path);


#if DEBUG
                List<string> listFiles = new List<string> ();
                DirectoryInfo TheFolder = new DirectoryInfo (path);
                foreach (FileInfo NextFile in TheFolder.GetFiles ()) {
                    MainPage.Log (NextFile.Name);
                }
#endif
            }

#if DEBUG
            foreach (DirectoryInfo d in root.GetDirectories ()) {
                MainPage.Log ("文件夹：" + d.Name);
            }
#endif
        }

        /// <summary>
        /// 文件是否存在
        /// </summary>
        /// <param name="filePath">File path.</param>
        public static bool Exists(string filePath)
        {
            //System.MainPage.WriteLog ("Exists==" + Path.Combine (RootPath, filePath));
            return File.Exists(Path.Combine(RootPath, filePath));
        }

        /// <summary>
        /// Deletes the file.
        /// </summary>
        /// <param name="fileName">File name.</param>
        public static void DeleteFile(string fileName)
        {
            if (fileName == null || fileName == "Language.ini" || fileName == "AccountListDB")
            {
                return;
            }
            File.Delete(Path.Combine(RootPath, fileName));
            MainPage.Log("删除文件名为：" + fileName);
        }

        /// <summary>
        /// Deletes all file.
        /// </summary>
        public static void DeleteAllFile()
        {
            List<string> filesList = ReadFiles();
            for (int j = 0; j < filesList.Count; j++)
            {
                var f = filesList[j];
                if (f == "linphonerc" || f == "AccountListDB" || f == "Register_File")
                    continue;
                DeleteFile(f);
                MainPage.Log($"Del file :{f}");
            }
        }

        /// <summary>
        /// Writes the file by bytes.
        /// </summary>
        /// <returns><c>true</c>, if file by bytes was writed, <c>false</c> otherwise.</returns>
        /// <param name="fileName">File name.</param>
        /// <param name="bytes">Bytes.</param>
        public static bool WriteFileByBytes(string fileName, byte[] bytes)
        {
            if (fileName == null || (fileName = fileName.Trim()) == (""))
            {
                return false;
            }

            FileStream fs = null;

            try
            {
                fs = new FileStream(Path.Combine(RootPath, fileName), FileMode.Create, FileAccess.Write);
                fs.Write(bytes, 0, bytes.Length);
                fs.Flush();
                MainPage.Log("SaveFile:" + fileName);
                return true;
            }
            catch (Exception ex)
            {
                MainPage.Log("FileUtiles Code 113:" + ex.ToString());
                return false;
            }
            finally
            {
                try
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
                catch (Exception ex)
                {
                    MainPage.Log("FileUtils Code 121 :" + ex.ToString());
                }
            }
        }

        /// <summary>
        /// Writes the file by input stream.
        /// </summary>
        /// <returns><c>true</c>, if file by input stream was writed, <c>false</c> otherwise.</returns>
        /// <param name="fileName">File name.</param>
        /// <param name="inputStream">Input stream.</param>
        /// <param name="isNeedRootPath">If set to <c>true</c> is need root path.</param>
        public static bool WriteFileByInputStream(string fileName, Stream inputStream)
        {
            if (fileName == null || (fileName = fileName.Trim()) == (""))
            {
                return false;
            }
            FileStream fs = null;

            try
            {
                byte[] buffer = new byte[4 * 1024];
                int length = 0;
                while ((length = inputStream.Read(buffer, 0, buffer.Length)) != 0)
                {
                    if (fs == null)
                    {
                        fs = new FileStream(Path.Combine(RootPath, fileName), FileMode.Create, FileAccess.Write);
                    }
                    fs.Write(buffer, 0, length);
                    fs.Flush();
                }

                return true;
            }
            catch
            {
                return false;
            }
            finally
            {
                try
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
                catch
                {
                }
            }
        }

        /// <summary>
        /// read file
        /// </summary>
        /// <returns>The file.</returns>
        /// <param name="fileName">File name.</param>
        public static byte[] ReadImage(string fileName)
        {
            if (Shared.Application.IsPad)
            {
                fileName = "Pad/" + fileName;
            }
            else
            {
                fileName = "Phone/" + fileName;
            }
            FileStream fs = null;
            try
            {
                if (File.Exists(Path.Combine(RootPath, fileName)))
                {
                    fs = new FileStream(Path.Combine(RootPath, fileName), FileMode.Open, FileAccess.Read);
                }
                else if (File.Exists(fileName))
                {
                    fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
                }
                else
                {
                    return new byte[0];
                }
                byte[] bytes = new byte[fs.Length];
                fs.Read(bytes, 0, bytes.Length);
                return bytes;
            }
            catch
            {
                return new byte[0];
            }
            finally
            {
                try
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
                catch
                {

                }
            }
        }

        public static byte[] ReadFile(string fileName)
        {
            FileStream fs = null;
            try
            {
                if (File.Exists(Path.Combine(RootPath, fileName)))
                {
                    fs = new FileStream(Path.Combine(RootPath, fileName), FileMode.Open, FileAccess.Read);
                }
                else if (File.Exists(fileName))
                {
                    fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
                }
                else
                {
                    return new byte[0];
                }
                byte[] bytes = new byte[fs.Length];
                fs.Read(bytes, 0, bytes.Length);
                return bytes;
            }
            catch
            {
                return new byte[0];
            }
            finally
            {
                try
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
                catch
                {

                }
            }
        }

        /// <summary>
        /// 下载电台、音乐、DLNA等等网络图片
        /// </summary>
        /// <param name="fileName"></param>
        /// <param name="url"></param>
        public static void DownLoadImage(string fileName, string url)
        {
            #region 如果当前目录不存在，就初始化 
            string directioryPath = null;
            if (Shared.Application.IsPad)
            {
                directioryPath = "Pad/" + "MusicImage";
            }
            else
            {
                directioryPath = "Phone/" + "MusicImage";
            }
            directioryPath = Path.Combine(RootPath, directioryPath);
            if (!Directory.Exists(directioryPath))
            {
                Directory.CreateDirectory(directioryPath);
            }
            #endregion

            if (!File.Exists(fileName))
            {
                System.Threading.Tasks.Task.Run(() =>
                {
                    FileStream fs = null;
                    try
                    {
                        HDL_ON.DAL.Net.MyWebClient webClient = new HDL_ON.DAL.Net.MyWebClient();
                        byte[] recevieBytes = webClient.DownloadData(new Uri(url));
                        fs = new FileStream(fileName, FileMode.Create, FileAccess.Write);
                        fs.Write(recevieBytes, 0, recevieBytes.Length);
                        fs.Flush();
                    }
                    catch { }
                    finally
                    {
                        if (fs != null)
                        {
                            fs.Close();
                        }
                    }
                });
            }
        }

        /// <summary>
        /// 下载电台、音乐、DLNA等等网络图片
        /// </summary>
        /// <param name="fileName"></param>
        /// <param name="url"></param>
        public static string DownLoadImageFormBaidu(string album, string artist)
        {
            var url = "http://tingapi.ting.baidu.com/v1/restserver/ting?from=qianqian&version=2.1.0&method=baidu.ting.search.catalogSug&format=json&query=" + artist;
            string directioryPath = "MusicImage";
            directioryPath = Path.Combine(RootPath, directioryPath);
            if (!Directory.Exists(directioryPath))
            {
                Directory.CreateDirectory(directioryPath);
            }
            try
            {
                var song = Newtonsoft.Json.JsonConvert.DeserializeObject<Song>(new HDL_ON.DAL.Net.MyWebClient().DownloadString(new Uri(url)));
                if (song == null)
                {
                    return null;
                }
                foreach (var tempAlbum in song.album)
                {
                    if (tempAlbum.albumname == album && artist == tempAlbum.artistname)
                    {
                        var bytes = new HDL_ON.DAL.Net.MyWebClient().DownloadData(new Uri(tempAlbum.artistpic.Split('@')[0] + "@s_1,w_160,h_160"));
                        var filePath = Path.Combine(directioryPath, "AlbumArtistImage_" + album);
                        var fs = new FileStream(filePath, FileMode.Create, FileAccess.Write);
                        fs.Write(bytes, 0, bytes.Length);
                        fs.Flush();
                        fs.Close();
                        return filePath;
                    }
                }

                foreach (var tempArtist in song.artist)
                {
                    if (artist == tempArtist.artistname)
                    {
                        var bytes = new HDL_ON.DAL.Net.MyWebClient().DownloadData(new Uri(tempArtist.artistpic.Split('@')[0] + "@s_1,w_160,h_160"));
                        var filePath = Path.Combine(directioryPath, "AlbumArtistImage_" + artist);
                        var fs = new FileStream(filePath, FileMode.Create, FileAccess.Write);
                        fs.Write(bytes, 0, bytes.Length);
                        fs.Flush();
                        fs.Close();
                        return filePath;
                    }
                }

            }
            catch { }
            return null;
        }

    }
    [System.Serializable]
    class Song
    {
        //string [] ss = new string [] {  };
        public List<Album> album = new List<Album>();
        public List<Artist> artist = new List<Artist>();
        public string sss;
    }
    [System.Serializable]
    class Album
    {
        public string albumname;
        public string artistname;
        public string artistpic;
    }
    [System.Serializable]
    class Artist
    {
        public string artistname;
        public string artistpic;
    }


}