using System.Net; using System.Net.Sockets; using System.Text; using System.Text.RegularExpressions; using System.IO; // 為 Path 和 File 提供支持 using DBObj; using OverlayFormObj; using HeartbeatSender; namespace DualScreenDemo { public class TCPServer { private TcpListener listener; private const int Port = 1000; private readonly string hostNameSuffix; //private bool isProcessingCommand = false; public TCPServer() { listener = new TcpListener(IPAddress.Any, Port); hostNameSuffix = GetHostNameSuffix(); } private bool IsFormReady(Form form) { if (form == null) return false; bool isReady = false; try { if (form.IsHandleCreated && !form.IsDisposed) { if (form.InvokeRequired) { form.Invoke(new Action(() => isReady = true)); } else { isReady = true; } } } catch { isReady = false; } return isReady; } private async Task SafeInvoke(Form form, Action action, int maxRetries = 10) { if (form == null) return; for (int i = 0; i < maxRetries; i++) { try { if (IsFormReady(form)) { if (form.InvokeRequired) { form.Invoke(action); } else { action(); } return; } } catch (Exception ex) { Console.WriteLine($"Invoke attempt {i + 1} failed: {ex.Message}"); } await Task.Delay(500); // 等待500毫秒后重试 } Console.WriteLine("Failed to invoke action after maximum retries"); } public void Start() { listener.Start(); Console.WriteLine("Server started on port " + Port + "."); // 心跳封包 //heartbeatSender sender = new heartbeatSender("127.0.0.1", 8888); //sender.Start(); // Console.WriteLine($"heart beat for server{sender.RemoteEndPoint.Address}:{sender.RemoteEndPoint.Port}"); try { string stateFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "txt", "states.txt"); string initialState = ReadStateFile(stateFilePath); /* if (initialState.Equals("CLOSE", StringComparison.OrdinalIgnoreCase)) { _ = SafeInvoke(PrimaryForm.Instance, () => { try { foreach (Control ctrl in PrimaryForm.Instance.Controls) { ctrl.Enabled = false; } PrimaryForm.Instance.ShowSendOffScreen(); } catch (Exception ex) { Console.WriteLine($"顯示送客畫面時發生錯誤: {ex.Message}"); } }); } */ while (true) { Console.WriteLine("Waiting for connections..."); using (TcpClient client = listener.AcceptTcpClient()) { Console.WriteLine("Connected!"); NetworkStream stream = client.GetStream(); while (client.Connected) { byte[] buffer = new byte[1024]; int bytesRead = stream.Read(buffer, 0, buffer.Length); if (bytesRead == 0) break; string request = Encoding.UTF8.GetString(buffer, 0, bytesRead); Console.WriteLine("Received: " + request.Trim()); if (request.Length < 5) { continue; } string requestHostSuffix = request.Substring(0, 3); string command = request.Substring(4); if (requestHostSuffix.Equals(hostNameSuffix, StringComparison.OrdinalIgnoreCase)) { // 新增監聽指令 if (command.Trim().Equals("X", StringComparison.OrdinalIgnoreCase)) { PrimaryForm.Instance.pictureBoxQRCode.Visible = false; PrimaryForm.Instance.closeQRCodeButton.Visible = false; _ = SafeInvoke(VideoPlayerForm.Instance, async () => { if (IsFormReady(PrimaryForm.Instance)) { await SafeInvoke(PrimaryForm.Instance, async () => { PrimaryForm.Instance.ShowSendOffScreen(); Console.WriteLine("開始設置新的播放列表"); string closePath = @"D:\video\CLOSE.MPG"; if (File.Exists(closePath)) { SongData closeSong = new SongData( "0", "結束播放", "", "", "", closePath, "", "", "", "", 1 ); VideoPlayerForm.publicPlaylist = new List(); VideoPlayerForm.playingSongList = new List(); PrimaryForm.playedSongsHistory = new List(); if (VideoPlayerForm.Instance.currentPlayingSong != null) { VideoPlayerForm.playingSongList.Add(VideoPlayerForm.Instance.currentPlayingSong); } VideoPlayerForm.playingSongList.Add(closeSong); VideoPlayerForm.publicPlaylist.Add(closeSong); PrimaryForm.userRequestedSongs = new List(); if (IsFormReady(OverlayForm.MainForm)) { OverlayForm.MainForm.nextSongLabel.Visible = false; } VideoPlayerForm.Instance.PlayNextSong(); PrimaryForm.Instance.logout(); Console.WriteLine("已設置新的播放列表，包含當前歌曲和 CLOSE.MPG"); try { await HttpServer.RestartServer(); } catch (Exception ex) { Console.WriteLine("RestartServer 發生錯誤: " + ex.Message); } } else { Console.WriteLine($"錯誤: 找不到檔案 {closePath}"); } OverlayForm.Instance.ResetMarqueeTextToWelcomeMessage(); }); } }); UpdateStateFile(stateFilePath, "CLOSE"); byte[] okResponse = Encoding.UTF8.GetBytes("OK\n"); stream.Write(okResponse, 0, okResponse.Length); continue; } if (command.Trim().Equals("O", StringComparison.OrdinalIgnoreCase)) { // 開台時跳至首頁 VideoPlayerForm.publicPlaylist = new List(); VideoPlayerForm.playingSongList = new List(); VideoPlayerForm.Instance.PlayPublicPlaylist(); PrimaryForm.currentSongIndexInHistory = -1; PrimaryForm.Instance.HotPlayButton_Click(null, EventArgs.Empty); UpdateStateFile(stateFilePath, "OPEN"); PrimaryForm.Instance.HideSendOffScreen(); OverlayForm.Instance.ResetMarqueeTextToWelcomeMessage(); byte[] okResponse = Encoding.UTF8.GetBytes("OK\n"); stream.Write(okResponse, 0, okResponse.Length); continue; } if (command.Trim().Equals("F", StringComparison.OrdinalIgnoreCase)) { _ = SafeInvoke(PrimaryForm.Instance, () => { PrimaryForm.Instance.ShowSendOffScreen(); VideoPlayerForm.Instance.Pause(); string marqueeMessage = "發生火災，請跟隨引導至逃生出口!!!"; OverlayForm.MainForm.UpdateMarqueeText(marqueeMessage, OverlayForm.MarqueeStartPosition.Middle, Color.Red); }); // 更新狀態檔案（可選，若你要記錄狀態） UpdateStateFile(stateFilePath, "PAUSE"); byte[] okResponse = Encoding.UTF8.GetBytes("OK\n"); stream.Write(okResponse, 0, okResponse.Length); continue; } } if (IsFormReady(OverlayForm.MainForm)) { string message = request.Trim(); string pattern = @"^(全部|\d{4})\((白色|紅色|綠色|黑色|藍色)\)-"; Match match = Regex.Match(message, pattern); _ = SafeInvoke(OverlayForm.MainForm, () => { if (match.Success) { string marqueeMessage = message.Substring(match.Value.Length).Trim(); Color textColor = GetColorFromString(match.Groups[2].Value); OverlayForm.MainForm.UpdateMarqueeText(marqueeMessage, OverlayForm.MarqueeStartPosition.Right, textColor); } else { string marqueeMessage = "系統公告: " + message; OverlayForm.MainForm.UpdateMarqueeTextSecondLine(marqueeMessage); } }); byte[] okResponse = Encoding.UTF8.GetBytes("OK\n"); stream.Write(okResponse, 0, okResponse.Length); } if (request.Trim().Equals("exit", StringComparison.OrdinalIgnoreCase)) { break; } } Console.WriteLine("Connection closed."); } } } catch (Exception e) { Console.WriteLine($"Error: {e.Message}"); } finally { listener.Stop(); } } private Color GetColorFromString(string colorName) { switch (colorName) { case "白色": return Color.White; case "紅色": return Color.Red; case "綠色": return Color.LightGreen; case "黑色": return Color.Black; case "藍色": return Color.LightBlue; default: return Color.Black; } } private string GetHostNameSuffix() { string hostName = Dns.GetHostName(); return hostName.Length > 3 ? hostName.Substring(hostName.Length - 3) : hostName; } private string ReadStateFile(string filePath) { try { if (File.Exists(filePath)) { string state = File.ReadAllText(filePath).Trim(); Console.WriteLine($"✅ State file read: {filePath} -> {state}"); return state; } else { Console.WriteLine("⚠️ State file not found. Creating new file with default state: OPEN"); UpdateStateFile(filePath, "OPEN"); return "OPEN"; } } catch (Exception ex) { Console.WriteLine($"❌ Failed to read state file: {ex.Message}"); return "OPEN"; // 默認為 OPEN } } private void UpdateStateFile(string filePath, string state) { try { File.WriteAllText(filePath, state); Console.WriteLine($"✅ State file updated: {filePath} -> {state}"); } catch (Exception ex) { Console.WriteLine($"❌ Failed to update state file: {ex.Message}"); } } } }