using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using System.Configuration;
using CUETools.AccurateRip;
using CUETools.CTDB;
using CUETools.CDImage;
using CUETools.Codecs;
using CUETools.Processor;
using CUETools.Ripper;
using MusicBrainz;
using Freedb;

namespace CUERipper
{
	public partial class frmCUERipper : Form
	{
		private Thread _workThread = null;
		private ICDRipper _reader = null;
		private StartStop _startStop;
		private CUEConfig _config;
		private string _format;
		private CUESheet metadata, cueSheet;
		private string _pathOut;
		string _defaultLosslessFormat, _defaultLossyFormat, _defaultHybridFormat;
		private CUEControls.ShellIconMgr m_icon_mgr;

		public frmCUERipper()
		{
			InitializeComponent();
			_config = new CUEConfig();
			_startStop = new StartStop();
			m_icon_mgr = new CUEControls.ShellIconMgr();
		}

		//private byte toBCD(int val)
		//{
		//    return (byte)(((val / 10) << 4) + (val % 10));
		//}

		string[] OutputPathUseTemplates = {
			"%music%\\%artist%\\[%year% - ]%album%\\%artist% - %album%.cue",
			"%music%\\%artist%\\[%year% - ]%album%[ - %edition%]$ifgreater($max(%discnumber%,%totaldiscs%),1, - cd %discnumber%,)[' ('%unique%')']\\%artist% - %album%[ - %edition%].cue"
		};

		private void frmCUERipper_Load(object sender, EventArgs e)
		{
			//byte[] _subchannelBuffer0 = { 0x01, 0x01, 0x01, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x02, 0x0A, 0x4C, 0x43 };
			//byte[] _subchannelBuffer1 = { 0x21, 0x01, 0x01, 0x00, 0x00, 0x11, 0x00, 0x00, 0x02, 0x11, 0xCF, 0x3E };
			//byte[] _subchannelBuffer2 = { 0x21, 0x01, 0x01, 0x00, 0x00, 0x12, 0x00, 0x00, 0x02, 0x12, 0x11, 0x8F };

			//_subchannelBuffer0[3] = toBCD(_subchannelBuffer0[3]);
			//_subchannelBuffer0[4] = toBCD(_subchannelBuffer0[4]);
			//_subchannelBuffer0[5] = toBCD(_subchannelBuffer0[5]);
			//_subchannelBuffer0[7] = toBCD(_subchannelBuffer0[7]);
			//_subchannelBuffer0[8] = toBCD(_subchannelBuffer0[8]);
			//_subchannelBuffer0[9] = toBCD(_subchannelBuffer0[9]);

			//Crc16Ccitt _crc = new Crc16Ccitt(InitialCrcValue.Zeros);
			//ushort crc0a = (ushort)(_crc.ComputeChecksum(_subchannelBuffer0, 0, 10) ^ 0xffff);
			//ushort crc0b = (ushort)(_subchannelBuffer0[11] + (_subchannelBuffer0[10] << 8));
			//ushort crc1a = (ushort)(_crc.ComputeChecksum(_subchannelBuffer1, 0, 10) ^ 0xffff);
			//ushort crc1b = (ushort)(_subchannelBuffer1[11] + (_subchannelBuffer1[10] << 8));
			//ushort crc2a = (ushort)(_crc.ComputeChecksum(_subchannelBuffer2, 0, 10) ^ 0xffff);
			//ushort crc2b = (ushort)(_subchannelBuffer2[11] + (_subchannelBuffer2[10] << 8));
			//if (crc0a != crc0b) // || crc1a != crc1b || crc2a != crc2b)
			//{
			//}
			SetupControls();
			SettingsReader sr = new SettingsReader("CUERipper", "settings.txt", Application.ExecutablePath);
			_config.Load(sr);
			_defaultLosslessFormat = sr.Load("DefaultLosslessFormat") ?? "flac";
			_defaultLossyFormat = sr.Load("DefaultLossyFormat") ?? "mp3";
			_defaultHybridFormat = sr.Load("DefaultHybridFormat") ?? "lossy.flac";
			//_config.createEACLOG = sr.LoadBoolean("CreateEACLOG") ?? true;
			//_config.preserveHTOA = sr.LoadBoolean("PreserveHTOA") ?? false;
			//_config.createM3U = sr.LoadBoolean("CreateM3U") ?? true;

			int iFormat, nFormats = sr.LoadInt32("OutputPathUseTemplates", 0, 10) ?? 0;
			for (iFormat = 0; iFormat < OutputPathUseTemplates.Length; iFormat++)
				comboBoxOutputFormat.Items.Add(OutputPathUseTemplates[iFormat]);
			for (iFormat = nFormats - 1; iFormat >= 0; iFormat--)
				comboBoxOutputFormat.Items.Add(sr.Load(string.Format("OutputPathUseTemplate{0}", iFormat)) ?? "");

			comboBoxOutputFormat.Text = sr.Load("PathFormat") ?? "%music%\\%artist%\\[%year% - ]%album%\\%artist% - %album%.cue";
			checkBoxEACMode.Checked = _config.createEACLOG;
			SelectedOutputAudioType = (AudioEncoderType?)sr.LoadInt32("OutputAudioType", null, null) ?? AudioEncoderType.Lossless;
			comboBoxAudioFormat.SelectedIndex = sr.LoadInt32("ComboCodec", 0, comboBoxAudioFormat.Items.Count - 1) ?? 0;
			comboImage.SelectedIndex = sr.LoadInt32("ComboImage", 0, comboImage.Items.Count - 1) ?? 0;
			trackBarSecureMode.Value = sr.LoadInt32("SecureMode", 0, trackBarSecureMode.Maximum - 1) ?? 1;
			trackBarSecureMode_Scroll(this, new EventArgs());
			//string encoderName = sr.Load("EncoderName");
			//if (encoderName != null)
			//    foreach (object item in comboBoxEncoder.Items)
			//    {
			//        CUEToolsUDC encoder = item as CUEToolsUDC;
			//        if (encoder.Name != encoderName) continue;
			//        comboBoxEncoder.SelectedItem = encoder;
			//        break;
			//    }
			UpdateDrives();
		}

		#region private constants
		/// <summary>
		/// The window message of interest, device change
		/// </summary>
		const int WM_DEVICECHANGE = 0x0219;
		const ushort DBT_DEVICEARRIVAL = 0x8000;
		const ushort DBT_DEVICEREMOVECOMPLETE = 0x8004;
		const ushort DBT_DEVNODES_CHANGED = 0x0007;
		#endregion

		/// <summary>
		/// This method is called when a window message is processed by the dotnet application
		/// framework.  We override this method and look for the WM_DEVICECHANGE message. All
		/// messages are delivered to the base class for processing, but if the WM_DEVICECHANGE
		/// method is seen, we also alert any BWGBURN programs that the media in the drive may
		/// have changed.
		/// </summary>
		/// <param name="m">the windows message being processed</param>
		protected override void WndProc(ref Message m)
		{
			if (m.Msg == WM_DEVICECHANGE && _workThread == null)
			{
				int val = m.WParam.ToInt32();
				if (val == DBT_DEVICEARRIVAL || val == DBT_DEVICEREMOVECOMPLETE)
					UpdateDrive();
				else if (val == DBT_DEVNODES_CHANGED)
					UpdateDrives();
			}
			base.WndProc(ref m);
		}

		private void UpdateDrives()
		{
			buttonGo.Enabled = false;
			foreach (object item in comboDrives.Items)
			{
				ICDRipper drive = item as ICDRipper;
				if (drive != null)
					drive.Close();
			}
			comboDrives.Items.Clear();
			comboRelease.Items.Clear();
			listTracks.Items.Clear();
			foreach (char drive in CDDrivesList.DrivesAvailable())
			{
				ICDRipper reader = Activator.CreateInstance(CUEProcessorPlugins.ripper) as ICDRipper;
				string arName = null;
				int driveOffset;
				try
				{
					reader.Open(drive);
					arName = reader.ARName;
					reader.Close();
				}
				catch (Exception ex)
				{
					try
					{
						arName = reader.ARName;
					}
					catch
					{
						comboDrives.Items.Add(drive + ": " + ex.Message);
						continue;
					}
				}
				if (!AccurateRipVerify.FindDriveReadOffset(arName, out driveOffset))
					; //throw new Exception("Failed to find drive read offset for drive" + _ripper.ARName);
				reader.DriveOffset = driveOffset;
				comboDrives.Items.Add(reader);
			}
			if (comboDrives.Items.Count == 0)
				comboDrives.Items.Add("No CD drives found");
			comboDrives.SelectedIndex = 0;
		}

		bool outputFormatVisible = false;

		private void SetupControls ()
		{
			bool running = _workThread != null;

			comboBoxOutputFormat.Visible = outputFormatVisible;
			txtOutputPath.Visible = !outputFormatVisible;
			txtOutputPath.Enabled = !running && !outputFormatVisible;
			comboBoxOutputFormat.Enabled =
			listTracks.Enabled =
			comboDrives.Enabled =
			comboRelease.Enabled =
			groupBoxSettings.Enabled = !running;
			buttonPause.Visible = buttonPause.Enabled = buttonAbort.Visible = buttonAbort.Enabled = running;
			buttonGo.Visible = buttonGo.Enabled = !running;
			toolStripStatusLabel1.Text = String.Empty;
			toolStripProgressBar1.Value = 0;
			progressBarErrors.Value = 0;
			progressBarCD.Value = 0;
		}

		private void CheckStop()
		{
			lock (_startStop)
			{
				if (_startStop._stop)
				{
					_startStop._stop = false;
					_startStop._pause = false;
					throw new StopException();
				}
				if (_startStop._pause)
				{
					this.BeginInvoke((MethodInvoker)delegate()
					{
						toolStripStatusLabel1.Text = "Paused...";
					});
					Monitor.Wait(_startStop);
				}
			}
		}

		private void UploadProgress(object sender, Krystalware.UploadHelper.UploadProgressEventArgs e)
		{
			CheckStop();
			this.BeginInvoke((MethodInvoker)delegate()
			{
				toolStripStatusLabel1.Text = e.uri;
				toolStripProgressBar1.Value = Math.Max(0, Math.Min(100, (int)(e.percent * 100)));
			});
		}

		private void CDReadProgress(object sender, ReadProgressArgs e)
		{		
			CheckStop();

			ICDRipper audioSource = sender as ICDRipper;
			int processed = e.Position - e.PassStart;
			TimeSpan elapsed = DateTime.Now - e.PassTime;
			double speed = elapsed.TotalSeconds > 0 ? processed / elapsed.TotalSeconds / 75 : 1.0;

			double percentTrck = (double)(e.Position - e.PassStart) / (e.PassEnd - e.PassStart);
			string status = (elapsed.TotalSeconds > 0 && e.Pass >= 0) ?
				string.Format("{0} @{1:00.00}x{2}...", e.Action, speed, e.Pass > 0 ? " (Retry " + e.Pass.ToString() + ")" : "") :
				string.Format("{0}{1}...", e.Action, e.Pass > 0 ? " (Retry " + e.Pass.ToString() + ")" : "");
			this.BeginInvoke((MethodInvoker)delegate()
			{
				toolStripStatusLabel1.Text = status;
				toolStripProgressBar1.Value = Math.Max(0, Math.Min(100, (int)(percentTrck * 100)));

				progressBarErrors.Maximum = (int)(Math.Log(e.PassEnd - e.PassStart + 1) * 10);
				progressBarErrors.Value = Math.Min(progressBarErrors.Maximum, (int)(Math.Log(e.ErrorsCount + 1) * 10));
				progressBarErrors.Enabled = e.Pass >= audioSource.CorrectionQuality;

				progressBarCD.Maximum = (int) audioSource.TOC.AudioLength;
				progressBarCD.Value = Math.Max(0, Math.Min(progressBarCD.Maximum, (int)e.PassStart + (e.PassEnd - e.PassStart) * (Math.Min(e.Pass, audioSource.CorrectionQuality) + 1) / (audioSource.CorrectionQuality + 1)));
			});
		}

		private void Rip(object o)
		{
			ICDRipper audioSource = o as ICDRipper;
			audioSource.ReadProgress += new EventHandler<ReadProgressArgs>(CDReadProgress);
			audioSource.DriveOffset = (int)numericWriteOffset.Value;

			try
			{
				cueSheet.Go();

				bool submit = cueSheet.CTDB.AccResult == HttpStatusCode.NotFound ||
					cueSheet.CTDB.AccResult == HttpStatusCode.OK;
					//_cueSheet.CTDB.AccResult == HttpStatusCode.NoContent;
				DBEntry confirm = null;

				submit &= audioSource.CorrectionQuality > 0;

				foreach (DBEntry entry in cueSheet.CTDB.Entries)
					if (entry.toc.TrackOffsets == _reader.TOC.TrackOffsets && !entry.hasErrors)
						confirm = entry;

				for (int iSector = 0; iSector < (int)cueSheet.TOC.AudioLength; iSector++)
					if (audioSource.Errors[iSector])
						submit = false;

				if (submit)
				{
					if (confirm != null)
						cueSheet.CTDB.Confirm(confirm);
					else
						cueSheet.CTDB.Submit(
							(int)cueSheet.ArVerify.WorstConfidence() + 1,
							(int)cueSheet.ArVerify.WorstTotal() + 1,
							cueSheet.Artist,
							cueSheet.Title);
				}

				//CUESheet.WriteText(_pathOut, _cueSheet.CUESheetContents(_style));
				//CUESheet.WriteText(Path.ChangeExtension(_pathOut, ".log"), _cueSheet.LOGContents());
			}
			catch (StopException)
			{
			}
#if !DEBUG
			catch (Exception ex)
			{
				this.Invoke((MethodInvoker)delegate()
				{
					string message = "Exception";
					for (Exception e = ex; e != null; e = e.InnerException)
						message += ": " + e.Message;
					DialogResult dlgRes = MessageBox.Show(this, message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
				});
			}
#endif
			audioSource.ReadProgress -= new EventHandler<ReadProgressArgs>(CDReadProgress);
			audioSource.Close();
			audioSource.Open(audioSource.Path[0]);
			_workThread = null;
			this.BeginInvoke((MethodInvoker)delegate()
			{
				SetupControls();
			});
		}

		private void buttonGo_Click(object sender, EventArgs e)
		{
			if (_reader == null)
				return;

			if (!comboBoxOutputFormat.Items.Contains(comboBoxOutputFormat.Text) && comboBoxOutputFormat.Text.Contains("%"))
			{
				comboBoxOutputFormat.Items.Insert(OutputPathUseTemplates.Length, comboBoxOutputFormat.Text);
				if (comboBoxOutputFormat.Items.Count > OutputPathUseTemplates.Length + 10)
					comboBoxOutputFormat.Items.RemoveAt(OutputPathUseTemplates.Length + 10);
			}

			cueSheet.CopyMetadata(metadata);
			_format = (string)comboBoxAudioFormat.SelectedItem;
			cueSheet.OutputStyle = comboImage.SelectedIndex == 0 ? CUEStyle.SingleFileWithCUE :
				CUEStyle.GapsAppended;
			_pathOut = cueSheet.GenerateUniqueOutputPath(comboBoxOutputFormat.Text,
					cueSheet.OutputStyle == CUEStyle.SingleFileWithCUE ? "." + _format : ".cue",
					CUEAction.Encode, null);
			if (_pathOut == "")
			{
				MessageBox.Show(this, "Output path generation failed", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}
			cueSheet.GenerateFilenames(SelectedOutputAudioType, _format, _pathOut);
			_reader.CorrectionQuality = trackBarSecureMode.Value;

			_workThread = new Thread(Rip);
			_workThread.Priority = ThreadPriority.BelowNormal;
			_workThread.IsBackground = true;
			SetupControls();
			_workThread.Start(_reader);			
		}

		private void buttonAbort_Click(object sender, EventArgs e)
		{
			_startStop.Stop();
		}

		private void buttonPause_Click(object sender, EventArgs e)
		{
			_startStop.Pause();
		}

		private void comboRelease_Format(object sender, ListControlConvertEventArgs e)
		{
			if (e.ListItem is string)
				return;
			ReleaseInfo r = (ReleaseInfo)(e.ListItem);
			e.Value = string.Format("{0}{1} - {2}", r.metadata.Year != "" ? r.metadata.Year + ": " : "", r.metadata.Artist, r.metadata.Title);
		}

		private void UpdateRelease()
		{
			listTracks.Items.Clear();
			metadata = null;
			if (comboRelease.SelectedItem == null || comboRelease.SelectedItem is string)
				return;
			metadata = ((ReleaseInfo)comboRelease.SelectedItem).metadata;
			for (int i = 1; i <= _reader.TOC.TrackCount; i++)
			{
				listTracks.Items.Add(new ListViewItem(new string[] { 
					_reader.TOC[i].IsAudio ? metadata.Tracks[i - _reader.TOC.FirstAudio].Title : "Data track",
					_reader.TOC[i].Number.ToString(), 
					_reader.TOC[i].StartMSF, 
					_reader.TOC[i].LengthMSF }));
			}
			comboBoxOutputFormat_TextUpdate(this, new EventArgs());
		}

		private void comboRelease_SelectedIndexChanged(object sender, EventArgs e)
		{
			UpdateRelease();
		}

		private void MusicBrainz_LookupProgress(object sender, XmlRequestEventArgs e)
		{
			CheckStop();
			//_progress.percentDisk = (1.0 + _progress.percentDisk) / 2;
			//_progress.input = e.Uri.ToString();
			this.BeginInvoke((MethodInvoker)delegate()
			{
				toolStripStatusLabel1.Text = "Looking up album via " + (e == null ? "FreeDB" : "MusicBrainz");
				toolStripProgressBar1.Value = (100 + 2 * toolStripProgressBar1.Value) / 3;
			});
		}

		private ReleaseInfo ConvertEncoding(ICDRipper audioSource, CDEntry cdEntryOrig)
		{
			Encoding iso = Encoding.GetEncoding("iso-8859-1");
			CDEntry cdEntry = cdEntryOrig.Clone() as CDEntry;
			bool different = false;
			cdEntry.Artist = Encoding.Default.GetString(iso.GetBytes(cdEntryOrig.Artist));
			different |= cdEntry.Artist != cdEntryOrig.Artist;
			cdEntry.Title = Encoding.Default.GetString(iso.GetBytes(cdEntryOrig.Title));
			different |= cdEntry.Title != cdEntryOrig.Title;
			for (int i = 0; i < cdEntry.Tracks.Count; i++)
			{
				cdEntry.Tracks[i].Title = Encoding.Default.GetString(iso.GetBytes(cdEntryOrig.Tracks[i].Title));
				different |= cdEntry.Tracks[i].Title != cdEntryOrig.Tracks[i].Title;
			}
			if (!different)
				return null;
			return CreateCUESheet(audioSource, null, cdEntry);
		}

		private ReleaseInfo CreateCUESheet(ICDRipper audioSource, Release release, CDEntry cdEntry)
		{
			ReleaseInfo r = new ReleaseInfo(_config, audioSource.TOC);
			General.SetCUELine(r.metadata.Attributes, "REM", "GENRE", "", true);
			General.SetCUELine(r.metadata.Attributes, "REM", "DATE", "", false);
			if (release != null)
			{
				r.metadata.FillFromMusicBrainz(release);
				r.bitmap = Properties.Resources.musicbrainz;
			}
			else if (cdEntry != null)
			{
				r.metadata.FillFromFreedb(cdEntry);
				r.bitmap = Properties.Resources.freedb;
			}
			else
			{
				r.metadata.Artist = "Unknown Artist";
				r.metadata.Title = "Unknown Title";
				for (int i = 0; i < audioSource.TOC.AudioTracks; i++)
					r.metadata.Tracks[i].Title = string.Format("Track {0:00}", i + 1);
			}
			if (r.metadata.Genre == "") r.metadata.Genre = "";
			if (r.metadata.Year == "") r.metadata.Year = "";
			return r;
		}

		private void Lookup(object o)
		{
			ICDRipper audioSource = o as ICDRipper;

			cueSheet = new CUESheet(_config);
			cueSheet.OpenCD(audioSource);
			cueSheet.Action = CUEAction.Encode;

			this.BeginInvoke((MethodInvoker)delegate() { toolStripStatusLabel1.Text = "Contacting CTDB database..."; });
			cueSheet.UseCUEToolsDB(true, "CUERipper 2.0.6: " + _reader.ARName);
			cueSheet.CTDB.UploadHelper.onProgress += new EventHandler<Krystalware.UploadHelper.UploadProgressEventArgs>(UploadProgress);
			this.BeginInvoke((MethodInvoker)delegate() { toolStripStatusLabel1.Text = "Contacting AccurateRip database..."; });
			cueSheet.UseAccurateRip();
			this.BeginInvoke((MethodInvoker)delegate() { toolStripStatusLabel1.Text = "Looking album info..."; });

			General.SetCUELine(cueSheet.Attributes, "REM", "DISCID", AccurateRipVerify.CalculateCDDBId(audioSource.TOC), false);
			General.SetCUELine(cueSheet.Attributes, "REM", "COMMENT", _config.createEACLOG ? "ExactAudioCopy v0.99pb4" : audioSource.RipperVersion, true);

			ReleaseQueryParameters p = new ReleaseQueryParameters();
			p.DiscId = audioSource.TOC.MusicBrainzId;
			Query<Release> results = Release.Query(p);
			MusicBrainzService.XmlRequest += new EventHandler<XmlRequestEventArgs>(MusicBrainz_LookupProgress);
			try
			{
				foreach (Release release in results)
				{
					release.GetEvents();
					release.GetTracks();
					ReleaseInfo r = CreateCUESheet(audioSource, release, null);
					this.BeginInvoke((MethodInvoker)delegate()
					{
						comboRelease.Items.Add(r);
					});
				}
			}
			catch (Exception)
			{
			}
			MusicBrainzService.XmlRequest -= new EventHandler<XmlRequestEventArgs>(MusicBrainz_LookupProgress);


			FreedbHelper m_freedb = new FreedbHelper();

			m_freedb.UserName = "gchudov";
			m_freedb.Hostname = "gmail.com";
			m_freedb.ClientName = "CUERipper";
			m_freedb.Version = "1.0";
			m_freedb.SetDefaultSiteAddress(Properties.Settings.Default.MAIN_FREEDB_SITEADDRESS);
			
			QueryResult queryResult;
			QueryResultCollection coll;
			string code = string.Empty;
			try
			{
				MusicBrainz_LookupProgress(this, null);
				code = m_freedb.Query(AccurateRipVerify.CalculateCDDBQuery(audioSource.TOC), out queryResult, out coll);
				if (code == FreedbHelper.ResponseCodes.CODE_200)
				{
					CDEntry cdEntry;
					MusicBrainz_LookupProgress(this, null);
					code = m_freedb.Read(queryResult, out cdEntry);
					if (code == FreedbHelper.ResponseCodes.CODE_210)
					{
						ReleaseInfo r = CreateCUESheet(audioSource, null, cdEntry);
						ReleaseInfo r2 = ConvertEncoding(audioSource, cdEntry);
						this.BeginInvoke((MethodInvoker)delegate()
						{
							comboRelease.Items.Add(r);
							if (r2 != null) comboRelease.Items.Add(r2);
						});
					}
				}
				else
				if (code == FreedbHelper.ResponseCodes.CODE_210 ||
					code == FreedbHelper.ResponseCodes.CODE_211 )
				{
					foreach (QueryResult qr in coll)
					{
						CDEntry cdEntry;
						MusicBrainz_LookupProgress(this, null);
						code = m_freedb.Read(qr, out cdEntry);
						if (code == FreedbHelper.ResponseCodes.CODE_210)
						{
							ReleaseInfo r = CreateCUESheet(audioSource, null, cdEntry);
							ReleaseInfo r2 = ConvertEncoding(audioSource, cdEntry);
							this.BeginInvoke((MethodInvoker)delegate()
							{
								comboRelease.Items.Add(r);
								if (r2 != null) comboRelease.Items.Add(r2);
							});
						}
					}
				}
			}
			catch (Exception)
			{
			}

			if (comboRelease.Items.Count == 0)
			{
				ReleaseInfo r = CreateCUESheet(audioSource, null, null);
				this.BeginInvoke((MethodInvoker)delegate()
				{
					comboRelease.Items.Add(r);
				});
			}
			_workThread = null;
			this.BeginInvoke((MethodInvoker)delegate()
			{
				SetupControls();
				comboRelease.SelectedIndex = 0;
				toolStripStatusAr.Visible = cueSheet.ArVerify.ARStatus == null;
				toolStripStatusAr.Text = cueSheet.ArVerify.ARStatus == null ? cueSheet.ArVerify.WorstTotal().ToString() : "?";
				toolStripStatusAr.ToolTipText = "AccurateRip: " + (cueSheet.ArVerify.ARStatus ?? "found") + ".";
				toolStripStatusCTDB.Visible = cueSheet.CTDB.DBStatus == null;
				toolStripStatusCTDB.Text = cueSheet.CTDB.DBStatus == null ? cueSheet.CTDB.Total.ToString() : "";
				toolStripStatusCTDB.ToolTipText = "CUETools DB: " + (cueSheet.CTDB.DBStatus ?? "found") + ".";
				toolStripStatusLabelMusicBrainz.BorderStyle = results.Count > 0 ? Border3DStyle.SunkenInner : Border3DStyle.RaisedInner;
				toolStripStatusLabelMusicBrainz.Visible = true;
				toolStripStatusLabelMusicBrainz.Text = results.Count > 0 ? results.Count.ToString() : "-";
				toolStripStatusLabelMusicBrainz.ToolTipText = "Musicbrainz: " + results.Count.ToString() + " entries found.";
			});
		}

		private void UpdateDrive()
		{
			toolStripStatusAr.Visible = false;
			toolStripStatusCTDB.Visible = false;
			toolStripStatusLabelMusicBrainz.Visible = false;
			buttonGo.Enabled = false;
			comboRelease.Items.Clear();
			listTracks.Items.Clear();
			if (comboDrives.SelectedItem is string)
			{
				_reader = null;
				return;
			}
			if (cueSheet != null)
			{
				cueSheet.Close();
				cueSheet = null;
			}
			_reader = comboDrives.SelectedItem as ICDRipper;
			try
			{
				_reader.Close();
				_reader.Open(_reader.Path[0]);
				numericWriteOffset.Value = _reader.DriveOffset;
			}
			catch (Exception ex)
			{
				numericWriteOffset.Value = _reader.DriveOffset;
				//_reader.Close();
				comboRelease.Items.Add(ex.Message);
				comboRelease.SelectedIndex = 0;
				return;
			}
			if (_reader.TOC.AudioTracks == 0)
			{
				comboRelease.Items.Add("No audio tracks");
				comboRelease.SelectedIndex = 0;
				return;
			}
			UpdateRelease();
			_workThread = new Thread(Lookup);
			_workThread.Priority = ThreadPriority.BelowNormal;
			_workThread.IsBackground = true;
			SetupControls();
			_workThread.Start(_reader);
		}

		private void comboDrives_SelectedIndexChanged(object sender, EventArgs e)
		{
			UpdateDrive();
		}

		private void listTracks_DoubleClick(object sender, EventArgs e)
		{
			listTracks.FocusedItem.BeginEdit();
		}

		private void listTracks_KeyDown(object sender, KeyEventArgs e)
		{
			if (e.KeyCode == Keys.F2)
			{
				listTracks.FocusedItem.BeginEdit();
			}
		}

		private void listTracks_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
		{
			if (e.KeyCode == Keys.Enter)
			{
				if (listTracks.FocusedItem.Index + 1 < listTracks.Items.Count)// && e.Label != null)
				{
					listTracks.FocusedItem.Selected = false;
					listTracks.FocusedItem = listTracks.Items[listTracks.FocusedItem.Index + 1];
					listTracks.FocusedItem.Selected = true;
					listTracks.FocusedItem.BeginEdit();
				}
			}
		}

		private void listTracks_AfterLabelEdit(object sender, LabelEditEventArgs e)
		{
			CUESheet metadata = ((ReleaseInfo)comboRelease.SelectedItem).metadata;
			if (e.Label != null && _reader.TOC[e.Item + 1].IsAudio)
				metadata.Tracks[e.Item].Title = e.Label;
			else
				e.CancelEdit = true;
		}

		private void editToolStripMenuItem_Click(object sender, EventArgs e)
		{
			ReleaseInfo ri = comboRelease.SelectedItem as ReleaseInfo;
			if (ri == null) return;
			frmProperties frm = new frmProperties();
			frm.CUE = ri.metadata;
			frm.ShowDialog();
			comboRelease.Invalidate();
			comboBoxOutputFormat_TextUpdate(sender, e);
		}

		private void comboRelease_DrawItem(object sender, DrawItemEventArgs e)
		{
			e.DrawBackground();
			StringFormat format = new StringFormat();
			format.FormatFlags = StringFormatFlags.NoClip;
			format.Alignment = StringAlignment.Near;
			if (e.Index >= 0 && e.Index < comboRelease.Items.Count)
			{
				string text = comboRelease.GetItemText(comboRelease.Items[e.Index]);
				if (comboRelease.Items[e.Index] is ReleaseInfo)
				{
					Bitmap ImageToDraw = ((ReleaseInfo)comboRelease.Items[e.Index]).bitmap;
					if (ImageToDraw != null)
						e.Graphics.DrawImage(ImageToDraw, new Rectangle(e.Bounds.X, e.Bounds.Y, e.Bounds.Height, e.Bounds.Height));
					//e.Graphics.DrawImage(ImageToDraw, new Rectangle(e.Bounds.X + e.Bounds.Width - ImageToDraw.Width, e.Bounds.Y, ImageToDraw.Width, e.Bounds.Height));
				}
				e.Graphics.DrawString(text, e.Font, new SolidBrush(e.ForeColor), new RectangleF((float)e.Bounds.X + e.Bounds.Height, (float)e.Bounds.Y, (float)(e.Bounds.Width - e.Bounds.Height), (float)e.Bounds.Height), format);
			}
			e.DrawFocusRectangle();
		}

		private void frmCUERipper_FormClosed(object sender, FormClosedEventArgs e)
		{
			SettingsWriter sw = new SettingsWriter("CUERipper", "settings.txt", Application.ExecutablePath);
			//CUEToolsUDC encoder = comboBoxEncoder.SelectedItem as CUEToolsUDC;
			//if (encoder != null)
			//    sw.Save("EncoderName", encoder.Name);
			_config.Save(sw);
			sw.Save("DefaultLosslessFormat", _defaultLosslessFormat);
			sw.Save("DefaultLossyFormat", _defaultLossyFormat);
			sw.Save("DefaultHybridFormat", _defaultHybridFormat);
			//sw.Save("CreateEACLOG", _config.createEACLOG);
			//sw.Save("PreserveHTOA", _config.preserveHTOA);
			//sw.Save("CreateM3U", _config.createM3U);
			sw.Save("OutputAudioType", (int)SelectedOutputAudioType);
			sw.Save("ComboCodec", comboBoxAudioFormat.SelectedIndex);
			sw.Save("ComboImage", comboImage.SelectedIndex);
			sw.Save("PathFormat", comboBoxOutputFormat.Text);
			sw.Save("SecureMode", trackBarSecureMode.Value);
			sw.Save("OutputPathUseTemplates", comboBoxOutputFormat.Items.Count - OutputPathUseTemplates.Length);
			for (int iFormat = comboBoxOutputFormat.Items.Count - 1; iFormat >= OutputPathUseTemplates.Length; iFormat--)
				sw.Save(string.Format("OutputPathUseTemplate{0}", iFormat - OutputPathUseTemplates.Length), comboBoxOutputFormat.Items[iFormat].ToString());

			sw.Close();
		}

		private void listTracks_BeforeLabelEdit(object sender, LabelEditEventArgs e)
		{
			if (!_reader.TOC[e.Item + 1].IsAudio)
				e.CancelEdit = true;
		}

		private string SelectedOutputAudioFormat
		{
			get
			{
				return (string)(comboBoxAudioFormat.SelectedItem ?? "dummy");
			}
			set
			{
				comboBoxAudioFormat.SelectedItem = value;
			}
		}

		private CUEToolsFormat SelectedOutputAudioFmt
		{
			get
			{
				CUEToolsFormat fmt;
				if (comboBoxAudioFormat.SelectedItem == null)
					return null;
				string formatName = (string)comboBoxAudioFormat.SelectedItem;
				if (formatName.StartsWith("lossy."))
					formatName = formatName.Substring(6);
				return _config.formats.TryGetValue(formatName, out fmt) ? fmt : null;
			}
		}

		private AudioEncoderType SelectedOutputAudioType
		{
			get
			{
				return
					radioButtonAudioHybrid.Checked ? AudioEncoderType.Hybrid :
					radioButtonAudioLossy.Checked ? AudioEncoderType.Lossy :
					AudioEncoderType.Lossless;
			}
			set
			{
				switch (value)
				{
					case AudioEncoderType.Hybrid:
						radioButtonAudioHybrid.Checked = true;
						break;
					case AudioEncoderType.Lossy:
						radioButtonAudioLossy.Checked = true;
						break;
					default:
						radioButtonAudioLossless.Checked = true;
						break;
				}
			}
		}

		private void checkBoxEACMode_CheckedChanged(object sender, EventArgs e)
		{
			_config.createEACLOG = checkBoxEACMode.Checked;
		}

		private void radioButtonAudioLossless_CheckedChanged(object sender, EventArgs e)
		{
			if (sender is RadioButton && !((RadioButton)sender).Checked)
				return;
			//labelFormat.ImageKey = null;
			comboBoxAudioFormat.Items.Clear();
			foreach (KeyValuePair<string, CUEToolsFormat> format in _config.formats)
			{
				if (SelectedOutputAudioType == AudioEncoderType.Lossless && !format.Value.allowLossless)
					continue;
				if (SelectedOutputAudioType == AudioEncoderType.Hybrid) // && format.Key != "wv") TODO!!!!!
					continue;
				if (SelectedOutputAudioType == AudioEncoderType.Lossy && !format.Value.allowLossy)
					continue;
				comboBoxAudioFormat.Items.Add(format.Key);
			}
			foreach (KeyValuePair<string, CUEToolsFormat> format in _config.formats)
			{
				if (!format.Value.allowLossyWAV)
					continue;
				if (SelectedOutputAudioType == AudioEncoderType.Lossless)
					continue;
				if (SelectedOutputAudioType == AudioEncoderType.NoAudio)
					continue;
				comboBoxAudioFormat.Items.Add("lossy." + format.Key);
			}
			switch (SelectedOutputAudioType)
			{
				case AudioEncoderType.Lossless:
					SelectedOutputAudioFormat = _defaultLosslessFormat;
					break;
				case AudioEncoderType.Lossy:
					SelectedOutputAudioFormat = _defaultLossyFormat;
					break;
				case AudioEncoderType.Hybrid:
					SelectedOutputAudioFormat = _defaultHybridFormat;
					break;
			}
		}

		private void comboBoxAudioFormat_SelectedIndexChanged(object sender, EventArgs e)
		{
			//labelFormat.ImageKey = SelectedOutputAudioFmt == null ? null : "." + SelectedOutputAudioFmt.extension;
			comboBoxEncoder.Items.Clear();
			if (SelectedOutputAudioFmt == null)
				return;

			foreach (CUEToolsUDC encoder in _config.encoders)
				if (encoder.extension == SelectedOutputAudioFmt.extension)
				{
					if (SelectedOutputAudioFormat.StartsWith("lossy.") && !encoder.lossless)
						continue;
					else if (SelectedOutputAudioType == AudioEncoderType.Lossless && !encoder.lossless)
						continue;
					else if (SelectedOutputAudioType == AudioEncoderType.Lossy && encoder.lossless)
						continue;
					comboBoxEncoder.Items.Add(encoder);
				}
			comboBoxEncoder.SelectedItem = SelectedOutputAudioFormat.StartsWith("lossy.") ? SelectedOutputAudioFmt.encoderLossless
				: SelectedOutputAudioType == AudioEncoderType.Lossless ? SelectedOutputAudioFmt.encoderLossless
				: SelectedOutputAudioFmt.encoderLossy;
			comboBoxEncoder.Enabled = true;
			comboBoxOutputFormat_TextUpdate(sender, e);
		}

		private void comboBoxEncoder_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (SelectedOutputAudioFormat == null)
				return;
			CUEToolsUDC encoder = comboBoxEncoder.SelectedItem as CUEToolsUDC;
			if (SelectedOutputAudioFormat.StartsWith("lossy."))
				SelectedOutputAudioFmt.encoderLossless = encoder;
			else if (SelectedOutputAudioType == AudioEncoderType.Lossless)
				SelectedOutputAudioFmt.encoderLossless = encoder;
			else
				SelectedOutputAudioFmt.encoderLossy = encoder;

			string[] modes = encoder.SupportedModes;
			if (modes == null || modes.Length < 2)
			{
				trackBarEncoderMode.Visible = false;
				labelEncoderMode.Visible = false;
				labelEncoderMinMode.Visible = false;
				labelEncoderMaxMode.Visible = false;
			}
			else
			{
				trackBarEncoderMode.Maximum = modes.Length - 1;
				trackBarEncoderMode.Value = encoder.DefaultModeIndex == -1 ? modes.Length - 1 : encoder.DefaultModeIndex;
				labelEncoderMode.Text = encoder.default_mode;
				labelEncoderMinMode.Text = modes[0];
				labelEncoderMaxMode.Text = modes[modes.Length - 1];
				trackBarEncoderMode.Visible = true;
				labelEncoderMode.Visible = true;
				labelEncoderMinMode.Visible = true;
				labelEncoderMaxMode.Visible = true;
			}
		}

		private void trackBarEncoderMode_Scroll(object sender, EventArgs e)
		{
			CUEToolsUDC encoder = comboBoxEncoder.SelectedItem as CUEToolsUDC;
			string[] modes = encoder.SupportedModes;
			encoder.default_mode = modes[trackBarEncoderMode.Value];
			labelEncoderMode.Text = encoder.default_mode;
		}

		private void trackBarSecureMode_Scroll(object sender, EventArgs e)
		{
			string[] modes = new string[] { "Burst", "Secure", "Paranoid" };
			labelSecureMode.Text = modes[trackBarSecureMode.Value];
		}

		private void toolStripStatusLabelMusicBrainz_Click(object sender, EventArgs e)
		{
			if (_reader == null)
				return;
			System.Diagnostics.Process.Start("http://musicbrainz.org/bare/cdlookup.html?toc=" + _reader.TOC.MusicBrainzTOC);
		}

		private void frmCUERipper_KeyDown(object sender, KeyEventArgs e)
		{
			if (_workThread == null && e.KeyCode == Keys.F5)
				UpdateDrive();
		}

		private void comboBoxOutputFormat_SelectedIndexChanged(object sender, EventArgs e)
		{
			comboBoxOutputFormat_TextUpdate(sender, e);
		}

		private void comboBoxOutputFormat_TextUpdate(object sender, EventArgs e)
		{
			string _format = (string)comboBoxAudioFormat.SelectedItem;
			CUEStyle style = comboImage.SelectedIndex == 0 ? CUEStyle.SingleFileWithCUE : CUEStyle.GapsAppended;
			txtOutputPath.Text = metadata == null ? "" : metadata.GenerateUniqueOutputPath(comboBoxOutputFormat.Text,
					style == CUEStyle.SingleFileWithCUE ? "." + _format : ".cue", CUEAction.Encode, null);
		}

		private void comboBoxOutputFormat_MouseLeave(object sender, EventArgs e)
		{
			if (!outputFormatVisible)
				return;
			outputFormatVisible = false;
			comboBoxOutputFormat.Visible = false;
			txtOutputPath.Enabled = true;
			txtOutputPath.Visible = true;
		}

		private void txtOutputPath_Enter(object sender, EventArgs e)
		{
			if (outputFormatVisible)
				return;
			outputFormatVisible = true;
			comboBoxOutputFormat.Visible = true;
			comboBoxOutputFormat.Focus();
			comboBoxOutputFormat.Select(0, 0);
			txtOutputPath.Enabled = false;
			txtOutputPath.Visible = false;
		}
	}

	public class StartStop
	{
		public bool _stop, _pause;
		public StartStop()
		{
			_stop = false;
			_pause = false;
		}

		public void Stop()
		{
			lock (this)
			{
				if (_pause)
				{
					_pause = false;
					Monitor.Pulse(this);
				}
				_stop = true;
			}
		}

		public void Pause()
		{
			lock (this)
			{
				if (_pause)
				{
					_pause = false;
					Monitor.Pulse(this);
				}
				else
				{
					_pause = true;
				}
			}
		}
	}

	class ReleaseInfo
	{
		public CUESheet metadata;
		public Bitmap bitmap;

		public ReleaseInfo(CUEConfig config, CDImageLayout TOC)
		{
			metadata = new CUESheet(config);
			metadata.TOC = TOC;
		}
	}
}