namespace LSServerService
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Runtime.InteropServices;

    internal static class LSFileManage
    {
        private static Dictionary<int, LSFileData> m_fileList = new Dictionary<int, LSFileData>();
        private static string m_rootPath = "";

        public static void createClientDirectory(string strPath)
        {
            if (strPath != "")
            {
                try
                {
                    string str = "";
                    string[] strArray = strPath.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
                    for (int i = 0; i < strArray.Length; i++)
                    {
                        str = str + strArray[i] + "/";
                        if (!Directory.Exists(m_rootPath + str))
                        {
                            Directory.CreateDirectory(m_rootPath + str);
                        }
                    }
                }
                catch (Exception exception)
                {
                    PubUtils.WriteLog("LSFileManage.createClientDirectory errorcode: {0}  ", new object[] { exception });
                }
            }
        }

        public static LSFileData createClientFile(string strName)
        {
            if (strName == "")
            {
                return null;
            }
            LSFileData fd = new LSFileData();
            try
            {
                string path = m_rootPath + strName;
                fd.fs = File.Open(path, FileMode.Create, FileAccess.Write, FileShare.Read);
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.createClientFile errorcode: {0}  ", new object[] { exception });
                eraseFile(fd);
            }
            return fd;
        }

        public static bool createDir(LSDBManage dbmanager, int parentId, string dirName)
        {
            try
            {
                Directory.CreateDirectory(m_rootPath + dbmanager.getRelativePath(parentId) + dirName);
                return true;
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.createDir errorcode: {0}  ", new object[] { exception });
            }
            return false;
        }

        public static LSFileData createFile(LSDBManage dbmanager, int parentId, string fileName, bool saveOld)
        {
            LSFileData data = new LSFileData();
            try
            {
                string str = dbmanager.getRelativePath(parentId);
                string rootPath = m_rootPath;
                string[] strArray = str.Split(new string[] { "//" }, StringSplitOptions.RemoveEmptyEntries);
                for (int i = 0; i < strArray.Length; i++)
                {
                    rootPath = rootPath + strArray[i] + "//";
                    if (!Directory.Exists(rootPath))
                    {
                        Directory.CreateDirectory(rootPath);
                    }
                }
                string path = m_rootPath + str + fileName;
                if (saveOld && File.Exists(path))
                {
                    File.Move(path, path + "#" + DateTime.Now.ToString("yyyy_MM_dd#hh_mm_ss"));
                }
                data.fs = File.Open(path, FileMode.Create, FileAccess.Write, FileShare.Read);
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.createFile errorcode: {0}  ", new object[] { exception });
            }
            return data;
        }

        public static bool createFileData(C2S2C_FileData data, out C2S2C_FileTranslateComplete structComplete)
        {
            structComplete = new C2S2C_FileTranslateComplete(true);
            try
            {
                LSFileData data2 = m_fileList[data.dwFileId];
                if (data2 != null)
                {
                    data2.fs.Write(data.FileData, 0, data.dwPacketLen);
                    data2.dwTotalBytes = data.dwTotalBytes;
                    data2.dwTotalCount = data.dwTotalCount;
                    data2.dwRevPacketCount++;
                    data2.lastWriteTime = Environment.TickCount;
                    if (data2.fs.Length >= data2.dwTotalBytes)
                    {
                        structComplete.dwFileId = data2.dwFileId;
                        structComplete.dwTotalBytes = data2.dwTotalBytes;
                        structComplete.dwTotalCount = data2.dwTotalCount;
                        structComplete.dwRevPacketCount = data2.dwRevPacketCount;
                        structComplete.dwRevBytesLen = (int) data2.fs.Length;
                        data2.fs.Flush();
                        data2.fs.Close();
                        data2.fs.Dispose();
                        data2.fs = null;
                        lock (m_fileList)
                        {
                            m_fileList.Remove(data.dwFileId);
                        }
                        return true;
                    }
                }
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.createFileData errorcode: {0}  ", new object[] { exception });
            }
            return false;
        }

        public static bool deleteFile(LSDBManage dbmanager, int fileId)
        {
            try
            {
                string path = m_rootPath + dbmanager.getAbsoluteFile(fileId);
                if (File.Exists(path))
                {
                    File.Move(path, path + "#" + DateTime.Now.ToString("yyyy_MM_dd#hh_mm_ss"));
                }
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.deleteFile errorcode: {0}  ", new object[] { exception });
                return false;
            }
            return true;
        }

        public static void dispose()
        {
            try
            {
                lock (m_fileList)
                {
                    foreach (KeyValuePair<int, LSFileData> pair in m_fileList)
                    {
                    }
                }
            }
            catch (Exception exception)
            {
                PubUtils.WriteLog("LSFileManage.dispose errorcode: {0}  ", new object[] { exception });
            }
        }

        public static void eraseFile(LSFileData fd)
        {
            if ((fd != null) && (fd.fs != null))
            {
                try
                {
                    string name = fd.fs.Name;
                    fd.fs.Flush();
                    fd.fs.Close();
                    fd.fs.Dispose();
                    fd.fs = null;
                    File.Delete(name);
                    if (File.Exists(name))
                    {
                        PubUtils.WriteLog("LSFileManage.eraseFile 无法删除指定文件: {0}  ", new object[] { name });
                    }
                }
                catch (Exception exception)
                {
                    PubUtils.WriteLog("LSFileManage.eraseFile errorcode: {0}  ", new object[] { exception });
                }
                lock (m_fileList)
                {
                    m_fileList.Remove(fd.dwFileId);
                }
            }
        }

        public static void eraseFile(int dwFileId)
        {
            lock (m_fileList)
            {
                LSFileData fd = m_fileList[dwFileId];
                eraseFile(fd);
            }
        }

        public static bool existDir(LSDBManage dbmanager, int parentId, string dirName)
        {
            string str = dbmanager.getRelativePath(parentId);
            return Directory.Exists(m_rootPath + str + dirName);
        }

        public static bool existFile(LSDBManage dbmanager, int parentId, string fileName)
        {
            string str = dbmanager.getRelativePath(parentId);
            return File.Exists(m_rootPath + str + fileName);
        }

        public static bool init(string rootPath)
        {
            m_rootPath = rootPath;
            return Directory.Exists(rootPath);
        }

        public static void insertFileData(LSFileData fd)
        {
            lock (m_fileList)
            {
                if (m_fileList.ContainsKey(fd.dwFileId))
                {
                    m_fileList.Remove(fd.dwFileId);
                }
                else
                {
                    m_fileList.Add(fd.dwFileId, fd);
                }
            }
        }

        public static string joinFileName(string filename)
        {
            string path = m_rootPath + filename;
            if (File.Exists(path))
            {
                return path;
            }
            return "";
        }
    }
}