using System;
using System.Collections.Generic;
using System.IO;
using HDL_ON.Entity;

namespace HDL_ON.Common
{
    public  class FileUtlis
    {
        static Common.FileUtlis _temp;
        public static Common.FileUtlis Files
        {
            get
            {
                if (_temp == null)
                {
                    _temp = new Common.FileUtlis();
                }
                return _temp;
            }
        }
        /// <summary>
        /// 根目录
        /// </summary>
        string RootPath = Environment.GetFolderPath(System.Environment.SpecialFolder.Personal) + "/";

        string accountPath;
        string AccountPath {
            get
            {
                if (string.IsNullOrEmpty(accountPath) || !accountPath.Contains(UserInfo.Current.ID))
                {
                    accountPath = Path.Combine(RootPath, UserInfo.Current.CurReginID);
                    if (!Directory.Exists(accountPath))
                    {
                        Directory.CreateDirectory(accountPath);
                    }
                }
                return accountPath + "/";
            }
        }
        /// <summary>
        /// 住宅文件夹路径
        /// </summary>
        string regionPath;
        string RegionPath
        {
            get
            {
                if (string.IsNullOrEmpty(regionPath) || !regionPath.Contains(UserInfo.Current.CurReginID ))
                {
                    regionPath = Path.Combine(AccountPath, UserInfo.Current.CurReginID);
                    if (!Directory.Exists(regionPath))
                    {
                        Directory.CreateDirectory(regionPath);
                    }
                }
                return regionPath + "/";
            }
        }
   

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

        /// <summary>
        /// 遍历文件
        /// </summary>
        public List<string> ReadFiles()
        {
            List<string> listFiles = new List<string>();
            DirectoryInfo TheFolder = new DirectoryInfo(RegionPath);
            foreach (FileInfo NextFile in TheFolder.GetFiles())
            {
                listFiles.Add(NextFile.Name);
            }
            return listFiles;
        }

        /// <summary>
        /// Deletes the file.
        /// </summary>
        /// <param name="fileName">File name.</param>
        public void DeleteFile(string fileName)
        {
            File.Delete(Path.Combine(RegionPath, fileName));
            MainPage.Log("删除文件名为：" + fileName);
        }

        /// <summary>
        /// Deletes all file.
        /// </summary>
        public void DeleteAllFile()
        {
            List<string> filesList = ReadFiles();
            for (int j = 0; j < filesList.Count; j++)
            {
                var f = filesList[j];
                DeleteFile(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 bool WriteFileByBytes(string fileName, byte[] bytes)
        {
            if (fileName == null || (fileName = fileName.Trim()) == (""))
            {
                return false;
            }

            FileStream fs = null;

            try
            {
                fs = new FileStream(Path.Combine(RegionPath, 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>
        /// 读取userInfo文件
        /// </summary>
        /// <returns></returns>
        public byte[] ReadUserInfo()
        {
            var fileName = "UserInfo_File";
            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>
        /// 保存userInfo
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public  bool WirteUserinfo(byte[] bytes)
        {
            var fileName = "UserInfo_File";
            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>
        /// 读取userInfo文件
        /// </summary>
        /// <returns></returns>
        public byte[] ReadAppConfig()
        {
            var fileName = "OnAppConfig";
            FileStream fs = null;
            try
            {
                if (File.Exists(Path.Combine(AccountPath, fileName)))
                {
                    fs = new FileStream(Path.Combine(AccountPath, 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>
        /// 保存userInfo
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public bool WirteAppConfig(byte[] bytes)
        {
            var fileName = "OnAppConfig";
            FileStream fs = null;

            try
            {
                fs = new FileStream(Path.Combine(AccountPath, 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());
                }
            }
        }



        public byte[] ReadFile(string fileName)
        {
            FileStream fs = null;
            try
            {
                if (File.Exists(Path.Combine(RegionPath, fileName)))
                {
                    fs = new FileStream(Path.Combine(RegionPath, 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
                {

                }
            }
        }
    }
}