first test
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minster586
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using System.Diagnostics;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace PainoBar_Helper
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{
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/// <summary>
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/// Manages the Pianobar process lifecycle and communication
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/// </summary>
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public class PianobarManager : IDisposable
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{
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private Process? _process;
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private StreamWriter? _inputWriter;
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private bool _isConnected;
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private readonly object _lockObject = new object();
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public event EventHandler<SongChangedEventArgs>? SongChanged;
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public event EventHandler<string>? StationChanged;
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public event EventHandler<PianobarEventArgs>? EventOccurred;
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public event EventHandler? Connected;
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public event EventHandler? Disconnected;
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public event EventHandler<string>? OutputReceived;
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public bool IsConnected
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{
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get { lock (_lockObject) return _isConnected; }
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private set
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{
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bool changed = false;
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lock (_lockObject)
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{
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if (_isConnected != value)
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{
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_isConnected = value;
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changed = true;
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}
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}
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if (changed)
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{
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if (value)
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Connected?.Invoke(this, EventArgs.Empty);
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else
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Disconnected?.Invoke(this, EventArgs.Empty);
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}
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}
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}
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public string? CurrentSong { get; private set; }
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public string? CurrentArtist { get; private set; }
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public string? CurrentAlbum { get; private set; }
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public string? CurrentAlbumArtUrl { get; private set; }
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public string? CurrentStation { get; private set; }
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public bool IsPlaying { get; private set; } = true;
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public void Connect(string pianobarPath, string? configPath = null)
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{
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if (IsConnected)
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throw new InvalidOperationException("Already connected to Pianobar.");
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// Check if pianobar is already running
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var existingProcesses = Process.GetProcessesByName("pianobar");
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if (existingProcesses.Length > 0)
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{
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foreach (var proc in existingProcesses)
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proc.Dispose();
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throw new InvalidOperationException("Pianobar is already running. Please close existing instances.");
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}
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try
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{
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var startInfo = new ProcessStartInfo
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{
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FileName = pianobarPath,
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UseShellExecute = false,
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RedirectStandardInput = true,
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RedirectStandardOutput = true,
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RedirectStandardError = true,
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CreateNoWindow = true,
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StandardOutputEncoding = Encoding.UTF8,
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StandardErrorEncoding = Encoding.UTF8
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};
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if (!string.IsNullOrEmpty(configPath))
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{
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startInfo.Arguments = $"-c \"{configPath}\"";
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}
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_process = new Process { StartInfo = startInfo };
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_process.OutputDataReceived += Process_OutputDataReceived;
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_process.ErrorDataReceived += Process_ErrorDataReceived;
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_process.Exited += Process_Exited;
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_process.EnableRaisingEvents = true;
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_process.Start();
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_inputWriter = _process.StandardInput;
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_process.BeginOutputReadLine();
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_process.BeginErrorReadLine();
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IsConnected = true;
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RaiseEvent("Connected to Pianobar");
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}
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catch (Exception ex)
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{
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Cleanup();
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throw new InvalidOperationException($"Failed to start Pianobar: {ex.Message}", ex);
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}
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}
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public void Disconnect()
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{
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if (!IsConnected)
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return;
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Cleanup();
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IsConnected = false;
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RaiseEvent("Disconnected from Pianobar");
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}
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public void SendCommand(char command)
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{
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if (!IsConnected || _inputWriter == null)
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throw new InvalidOperationException("Not connected to Pianobar.");
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try
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{
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_inputWriter.WriteLine(command);
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_inputWriter.Flush();
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}
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catch (Exception ex)
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{
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throw new InvalidOperationException($"Failed to send command: {ex.Message}", ex);
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}
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}
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public void SendCommand(string command)
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{
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if (!IsConnected || _inputWriter == null)
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throw new InvalidOperationException("Not connected to Pianobar.");
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try
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{
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_inputWriter.WriteLine(command);
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_inputWriter.Flush();
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}
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catch (Exception ex)
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{
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throw new InvalidOperationException($"Failed to send command: {ex.Message}", ex);
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}
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}
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public void PlayPause()
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{
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SendCommand('p');
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IsPlaying = !IsPlaying;
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RaiseEvent(IsPlaying ? "Resumed" : "Paused");
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}
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public void Skip()
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{
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SendCommand('n');
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RaiseEvent("Skipped Track");
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}
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public void ShowStations()
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{
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SendCommand('s');
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}
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private void Process_OutputDataReceived(object? sender, DataReceivedEventArgs e)
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{
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if (string.IsNullOrEmpty(e.Data))
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return;
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string line = e.Data;
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OutputReceived?.Invoke(this, line);
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ParseOutput(line);
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}
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private void Process_ErrorDataReceived(object? sender, DataReceivedEventArgs e)
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{
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if (!string.IsNullOrEmpty(e.Data))
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OutputReceived?.Invoke(this, e.Data);
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}
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private void Process_Exited(object? sender, EventArgs e)
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{
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IsConnected = false;
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RaiseEvent("Pianobar process exited");
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}
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private void ParseOutput(string line)
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{
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try
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{
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// Parse song information
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if (line.Contains("|>"))
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{
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// Song is playing
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IsPlaying = true;
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ParseSongLine(line);
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}
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else if (line.Contains("||"))
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{
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// Song is paused
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IsPlaying = false;
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}
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// Parse station selection
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var stationMatch = Regex.Match(line, @"\|\s*Station\s+""(.+?)""");
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if (stationMatch.Success)
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{
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CurrentStation = stationMatch.Groups[1].Value;
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StationChanged?.Invoke(this, CurrentStation);
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RaiseEvent("Station Selected");
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}
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// Parse song metadata
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if (line.Contains("Title:"))
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{
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var match = Regex.Match(line, @"Title:\s*(.+)");
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if (match.Success)
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CurrentSong = match.Groups[1].Value.Trim();
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}
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else if (line.Contains("Artist:"))
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{
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var match = Regex.Match(line, @"Artist:\s*(.+)");
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if (match.Success)
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CurrentArtist = match.Groups[1].Value.Trim();
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}
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else if (line.Contains("Album:"))
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{
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var match = Regex.Match(line, @"Album:\s*(.+)");
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if (match.Success)
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CurrentAlbum = match.Groups[1].Value.Trim();
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}
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else if (line.Contains("coverArt"))
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{
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var match = Regex.Match(line, @"coverArt:\s*(.+)");
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if (match.Success)
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{
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CurrentAlbumArtUrl = match.Groups[1].Value.Trim();
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TriggerSongChanged();
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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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// Ignore parsing errors
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}
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}
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private void ParseSongLine(string line)
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{
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// Parse format: |> "Song Title" by "Artist" on "Album"
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var match = Regex.Match(line, @"\|>\s+""(.+?)""\s+by\s+""(.+?)""\s+on\s+""(.+?)""");
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if (match.Success)
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{
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CurrentSong = match.Groups[1].Value;
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CurrentArtist = match.Groups[2].Value;
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CurrentAlbum = match.Groups[3].Value;
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TriggerSongChanged();
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}
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}
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private void TriggerSongChanged()
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{
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if (!string.IsNullOrEmpty(CurrentSong) && !string.IsNullOrEmpty(CurrentArtist))
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{
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SongChanged?.Invoke(this, new SongChangedEventArgs
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{
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Title = CurrentSong,
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Artist = CurrentArtist,
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Album = CurrentAlbum,
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AlbumArtUrl = CurrentAlbumArtUrl
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});
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RaiseEvent("Song Changed");
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}
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}
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private void RaiseEvent(string eventText)
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{
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EventOccurred?.Invoke(this, new PianobarEventArgs { EventText = eventText });
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}
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private void Cleanup()
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{
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try
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{
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if (_process != null)
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{
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_process.OutputDataReceived -= Process_OutputDataReceived;
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_process.ErrorDataReceived -= Process_ErrorDataReceived;
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_process.Exited -= Process_Exited;
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_inputWriter?.Close();
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_inputWriter = null;
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// Don't kill the process, just detach
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_process.Close();
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_process = null;
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}
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}
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catch
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{
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// Ignore cleanup errors
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}
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}
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public void Dispose()
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{
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Disconnect();
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}
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}
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public class SongChangedEventArgs : EventArgs
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{
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public string? Title { get; set; }
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public string? Artist { get; set; }
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public string? Album { get; set; }
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public string? AlbumArtUrl { get; set; }
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}
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public class PianobarEventArgs : EventArgs
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{
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public string EventText { get; set; } = string.Empty;
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}
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}
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