297 lines
13 KiB
C#
297 lines
13 KiB
C#
using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.IO; // 為 Path 和 File 提供支持
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using DBObj;
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using OverlayFormObj;
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using HeartbeatSender;
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namespace DualScreenDemo
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{
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public class TCPServer
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{
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private TcpListener listener;
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private const int Port = 1000;
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private readonly string hostNameSuffix;
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//private bool isProcessingCommand = false;
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public TCPServer()
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{
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listener = new TcpListener(IPAddress.Any, Port);
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hostNameSuffix = GetHostNameSuffix();
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_ = Task.Run(() => Start());
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}
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private bool IsFormReady(Form form)
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{
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if (form == null) return false;
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bool isReady = false;
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try
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{
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if (form.IsHandleCreated && !form.IsDisposed)
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{
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if (form.InvokeRequired)
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{
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form.Invoke(new Action(() => isReady = true));
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}
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else
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{
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isReady = true;
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}
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}
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}
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catch
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{
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isReady = false;
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}
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return isReady;
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}
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private async Task SafeInvoke(Form form, Action action, int maxRetries = 10)
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{
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if (form == null) return;
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for (int i = 0; i < maxRetries; i++)
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{
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try
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{
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if (IsFormReady(form))
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{
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if (form.InvokeRequired)
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{
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form.Invoke(action);
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}
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else
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{
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action();
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}
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return;
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Invoke attempt {i + 1} failed: {ex.Message}");
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}
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await Task.Delay(500); // 等待500毫秒后重试
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}
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Console.WriteLine("Failed to invoke action after maximum retries");
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}
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public void Start()
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{
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listener.Start();
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Console.WriteLine("Server started on port " + Port + ".");
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// 心跳封包
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//heartbeatSender sender = new heartbeatSender("127.0.0.1", 8888);
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//sender.Start();
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// Console.WriteLine($"heart beat for server{sender.RemoteEndPoint.Address}:{sender.RemoteEndPoint.Port}");
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try {
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while (true)
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{
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Console.WriteLine("Waiting for connections...");
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using (TcpClient client = listener.AcceptTcpClient())
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{
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Console.WriteLine("Connected!");
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NetworkStream stream = client.GetStream();
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while (client.Connected)
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{
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byte[] buffer = new byte[1024];
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int bytesRead = stream.Read(buffer, 0, buffer.Length);
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if (bytesRead == 0)
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break;
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string request = Encoding.UTF8.GetString(buffer, 0, bytesRead);
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Console.WriteLine("Received: " + request.Trim());
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if (request.Length < 5)
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{
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continue;
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}
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string requestHostSuffix = request.Substring(0, 3);
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string command = request.Substring(4);
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if (requestHostSuffix.Equals(hostNameSuffix, StringComparison.OrdinalIgnoreCase))
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{
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// 新增監聽指令
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if (command.Trim().Equals("X", StringComparison.OrdinalIgnoreCase))
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{
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PrimaryForm.Instance.pictureBoxQRCode.Visible = false;
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PrimaryForm.Instance.closeQRCodeButton.Visible = false;
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_ = SafeInvoke(VideoPlayerForm.Instance, async () =>
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{
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if (IsFormReady(PrimaryForm.Instance))
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{
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await SafeInvoke(PrimaryForm.Instance, async () =>
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{
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PrimaryForm.Instance.ShowSendOffScreen();
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Console.WriteLine("開始設置新的播放列表");
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string closePath = @"D:\video\CLOSE.MPG";
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if (File.Exists(closePath))
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{
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SongData closeSong = new SongData("0", "結束播放",closePath, 1,true);
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VideoPlayerForm.publicPlaylist = new List<SongData>();
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VideoPlayerForm.playingSongList = new List<SongData>();
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PrimaryForm.playedSongsHistory = new List<SongData>();
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if (VideoPlayerForm.Instance.currentPlayingSong != null)
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{
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VideoPlayerForm.playingSongList.Add(VideoPlayerForm.Instance.currentPlayingSong);
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}
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VideoPlayerForm.playingSongList.Add(closeSong);
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VideoPlayerForm.publicPlaylist.Add(closeSong);
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PrimaryForm.userRequestedSongs = new List<SongData>();
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if (IsFormReady(OverlayForm.MainForm))
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{
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OverlayForm.MainForm.nextSongLabel.Visible = false;
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}
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VideoPlayerForm.Instance.PlayNextSong();
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PrimaryForm.Instance.logout();
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Console.WriteLine("已設置新的播放列表，包含當前歌曲和 CLOSE.MPG");
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try
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{
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await HttpServer.RestartServer();
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}
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catch (Exception ex)
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{
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Console.WriteLine("RestartServer 發生錯誤: " + ex.Message);
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}
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}
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else
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{
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Console.WriteLine($"錯誤: 找不到檔案 {closePath}");
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}
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OverlayForm.Instance.ResetMarqueeTextToWelcomeMessage();
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});
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}
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});
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Program.RoomState = "CLOSE";
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byte[] okResponse = Encoding.UTF8.GetBytes("OK\n");
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stream.Write(okResponse, 0, okResponse.Length);
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continue;
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}
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if (command.Trim().Equals("O", StringComparison.OrdinalIgnoreCase))
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{
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// 開台時跳至首頁
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VideoPlayerForm.publicPlaylist = new List<SongData>();
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VideoPlayerForm.playingSongList = new List<SongData>();
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VideoPlayerForm.Instance.PlayPublicPlaylist();
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PrimaryForm.currentSongIndexInHistory = -1;
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PrimaryForm.Instance.HotPlayButton_Click(null, EventArgs.Empty);
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Program.RoomState = "OPEN";
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PrimaryForm.Instance.HideSendOffScreen();
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OverlayForm.Instance.ResetMarqueeTextToWelcomeMessage();
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byte[] okResponse = Encoding.UTF8.GetBytes("OK\n");
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stream.Write(okResponse, 0, okResponse.Length);
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continue;
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}
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if (command.Trim().Equals("F", StringComparison.OrdinalIgnoreCase))
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{
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_ = SafeInvoke(PrimaryForm.Instance, () =>
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{
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PrimaryForm.Instance.ShowSendOffScreen();
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VideoPlayerForm.Instance.Pause();
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string marqueeMessage = "發生火災，請跟隨引導至逃生出口!!!";
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OverlayForm.MainForm.UpdateMarqueeText(marqueeMessage, OverlayForm.MarqueeStartPosition.Middle, Color.Red);
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});
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// 更新狀態檔案（可選，若你要記錄狀態）
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Program.RoomState = "PAUSE";
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byte[] okResponse = Encoding.UTF8.GetBytes("OK\n");
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stream.Write(okResponse, 0, okResponse.Length);
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continue;
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}
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}
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if (IsFormReady(OverlayForm.MainForm))
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{
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string message = request.Trim();
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string pattern = @"^(全部|\d{4})\((白色|紅色|綠色|黑色|藍色)\)-";
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Match match = Regex.Match(message, pattern);
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_ = SafeInvoke(OverlayForm.MainForm, () =>
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{
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if (match.Success)
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{
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string marqueeMessage = message.Substring(match.Value.Length).Trim();
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Color textColor = GetColorFromString(match.Groups[2].Value);
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OverlayForm.MainForm.UpdateMarqueeText(marqueeMessage, OverlayForm.MarqueeStartPosition.Right, textColor);
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}
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else
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{
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string marqueeMessage = "系統公告: " + message;
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OverlayForm.MainForm.UpdateMarqueeTextSecondLine(marqueeMessage);
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}
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});
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byte[] okResponse = Encoding.UTF8.GetBytes("OK\n");
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stream.Write(okResponse, 0, okResponse.Length);
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}
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/*
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if (request.Trim().Equals("exit", StringComparison.OrdinalIgnoreCase))
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{
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break;
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}
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*/
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}
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Console.WriteLine("Connection closed.");
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}
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}
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}
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catch (Exception e)
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{
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Console.WriteLine($"Error: {e.Message}");
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}
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finally
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{
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listener.Stop();
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}
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}
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private Color GetColorFromString(string colorName)
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{
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switch (colorName)
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{
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case "白色":
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return Color.White;
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case "紅色":
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return Color.Red;
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case "綠色":
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return Color.LightGreen;
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case "黑色":
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return Color.Black;
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case "藍色":
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return Color.LightBlue;
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default:
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return Color.Black;
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}
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}
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private string GetHostNameSuffix()
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{
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string hostName = Dns.GetHostName();
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return hostName.Length > 3 ? hostName.Substring(hostName.Length - 3) : hostName;
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}
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}
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} |