using Estsh.Client.Common.CostomTraceListener;
using Estsh.Client.Common.FileUtil;
using SAEA.FTP;
using SAEA.FTP.Core;
using System.Configuration;
using System.Diagnostics;
using System.Reflection;

namespace Estsh.File.Server
{
    public partial class FileServer : Form
    {
        private string sOldFile = string.Empty;
        private FTPServer server;
        private readonly int MAX_LINES = 1000;
        private int _port = 8899;
        private int _capacity = 1000;

        public FileServer()
        {
            InitializeComponent();

            string ServerName = string.Empty;

            try
            {
                ServerName = ConfigurationManager.AppSettings["ServerName"];
            }
            catch { }

            this.Text = string.Format("[{0}] ", ServerName) + this.Text + "  Ver: " + Assembly.GetExecutingAssembly().GetName().Version.ToString();
            notifyIcon1.Text = this.Text;

            try
            {
                _port = Convert.ToInt32(ConfigurationManager.AppSettings["Port"].Trim());
                _capacity = Convert.ToInt32(ConfigurationManager.AppSettings["Capacity"].Trim());
            }
            catch { }

            Trace.Listeners.Add(new RichTextBoxTraceListener(rtbState, MAX_LINES));

            //Trace.Listeners.Add(new TextFileTraceListener());
            //Trace.Listeners.Add(new SQLiteTraceListener(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Log\\log.db")));

            // 出发开始事件
            cmd_Start_Click(null, null);
        }

        public void InitFtpServer()
        {
            ServerConfig _serverConfig = new ServerConfig();
            _serverConfig.IP = "127.0.0.1";
            _serverConfig.Port = (ushort)_port;
            FTPServerConfigManager.Save();

            var ftpServer = new FTPServer(_serverConfig.IP, _serverConfig.Port, _serverConfig.BufferSize);
            //ftpServer.OnLog += _ftpServer_OnLog;
            ftpServer.Start();



            //server = new FtpServer();
            //server.Port = _port;
            //server.Capacity = _capacity;
            //server.HeartBeatPeriod = 120000;    // 120s
            //FtpUser user = new FtpUser("rock");
            //user.Password = "8623";
            //user.AllowWrite = true;
            //user.HomeDir = AppDomain.CurrentDomain.BaseDirectory;
            //user.MaxConnectionCount = 1000;
            //user.MaxUploadFileLength = 1024 * 1024 * 20;    // 20M
            //server.AddUser(user);
            //server.AnonymousUser.HomeDir = AppDomain.CurrentDomain.BaseDirectory;
            //server.AnonymousUser.AllowRead = false;
            //server.Start();
        }

        private void cmd_Start_Click(object sender, EventArgs e)
        {
            cmd_Start.Enabled = false;
            cmd_Stop.Enabled = true;

            fileSystemWatcher1.Path = AppDomain.CurrentDomain.BaseDirectory;
            fileSystemWatcher1.IncludeSubdirectories = true;
            fileSystemWatcher1.EnableRaisingEvents = true;

            rtbState.AppendText("Initialize File Server.\n");
            InitFtpServer();

            rtbState.AppendText("Server Start...\n");

            this.WindowState = FormWindowState.Minimized;
        }

        private void FileServer_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (this.cmd_Stop.Enabled)
            {
                MessageBox.Show("Please Click [Stop] Button First !");
                e.Cancel = true;
                cmd_Stop.Focus();
            }
            else
            {
                if (server != null)
                {
                    if (server.Running)
                    {
                        server.Stop();
                        server.Dispose();
                        server = null;
                    }
                }
            }
        }

        private void cmd_Stop_Click(object sender, EventArgs e)
        {
            cmd_Start.Enabled = true;
            cmd_Stop.Enabled = false;

            fileSystemWatcher1.EnableRaisingEvents = false;

            if (server != null)
            {
                if (server.Running)
                {
                    server.Stop();
                    server.Dispose();
                    server = null;
                }
            }
        }

        private void notifyIcon1_DoubleClick(object sender, EventArgs e)
        {
            this.Show();

            this.ShowInTaskbar = true;
            this.WindowState = FormWindowState.Normal;
            this.BringToFront();
        }

        private void FileServer_Deactivate(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized)
            {
                this.ShowInTaskbar = false;
                this.Hide();
            }
        }

        private void HandleFileEvent(object sender, FileSystemEventArgs e)
        {
            string sTempPath = string.Empty;
            int iPos = 0;

            sTempPath = Path.GetDirectoryName(e.FullPath);

            // Skip Log Directory
            //if (sTempPath.Substring(sTempPath.Length - 3, 3) == "Log")
            //    return;

            // 如果路径中包含 Log 字符并且在根目录，就跳过
            if (sTempPath.Contains("Log") && sTempPath.Replace(AppDomain.CurrentDomain.BaseDirectory, string.Empty).Substring(0, 3) == "Log")
                return;

            if (sOldFile != e.FullPath)
            {
                if (!Directory.Exists(e.FullPath))
                {
                    sOldFile = e.FullPath;
                    tim_Delay.Enabled = true;

                    sTempPath = e.FullPath.Replace(fileSystemWatcher1.Path, "");

                    iPos = sTempPath.IndexOf("\\");

                    if (iPos > 0)
                    {
                        sTempPath = sTempPath.Substring(0, iPos);
                        rtbState.AppendText(e.FullPath + "   " + sTempPath + "\n");

                        // 延时 100 毫秒，防止读取不到文件的属性
                        Thread.Sleep(100);

                        FileInfos fileInfos = new FileInfos();

                        FileManager.GetLocalFileInfo(fileSystemWatcher1.Path, sTempPath, ref fileInfos);

                        fileSystemWatcher1.EnableRaisingEvents = false;

                        FileManager.SaveFileListsToXml(fileSystemWatcher1.Path + "\\" + sTempPath + ".xml",
                            fileInfos);

                        fileSystemWatcher1.EnableRaisingEvents = true;
                    }
                    else
                    {
                        rtbState.AppendText(sTempPath + "\n");
                    }
                }
            }
        }

        private void tim_Delay_Tick(object sender, EventArgs e)
        {
            sOldFile = string.Empty;
            tim_Delay.Enabled = false;
        }
    }
}