// Music Tags
// (c) 2020 Steve Banham

scriptName = "Music Tags";
scriptVersion = "1.0";
scriptDate = "25/5/2020";
scriptCopyright = "(c) 2020 Steve Banham";
scriptMinVersion = "12.20.4";
scriptDesc = "Music tag editor.";

var vecColumns = DOpus.NewVector();

var oldSelection, newSelection;

var TRACK = 0;
var TITLE = 1;
var ARTIST = 2;
var ALBUM = 3;
var ALBUMARTIST = 4;
var COMPOSER = 5;
var DISC = 6;
var YEAR = 7;
var GENRE = 8;
var COMMENT = 9; 

function OnInit(initData) {
    initData.name = scriptName;
    initData.version = scriptVersion;
    initData.copyright = scriptCopyright;
    initData.desc = scriptDesc;
    initData.default_enable = true;
	initData.min_version = scriptMinVersion;

	initData.config_desc = DOpus.Create.Map();
    var configName = "";
    
    configName = "show_cover_art";
    initData.Config[configName] = true;
	initData.config_desc(configName) = "Show cover art for the selected files.";

	configName = "confirm_save";
    initData.Config[configName] = true;
	initData.config_desc(configName) = "Show a confirmation dialog before saving changes.";

	configName = "log_folder";
    initData.Config[configName] = "/desktop";
    initData.config_desc(configName) = "Destination folder for the log file.";

    configName = "log_changes";
    initData.Config[configName] = true;
    initData.config_desc(configName) = "Write a log file detailing all metadata changes made.";
	
	vecColumns.push_back = "Track";
	vecColumns.push_back = "Title";
	vecColumns.push_back = "Artist";
	vecColumns.push_back = "Album";
	vecColumns.push_back = "Album Artist";
	vecColumns.push_back = "Composer";
	vecColumns.push_back = "Disc";
	vecColumns.push_back = "Year";
	vecColumns.push_back = "Genre";
	vecColumns.push_back = "Comment";

    configName = "columns_order";
	initData.config[configName] = vecColumns;
	initData.config_desc(configName) = "Display order for the tag columns.";
	
	var vecDblClk = DOpus.NewVector();
	vecDblClk.push_back(0);
	vecDblClk.push_back("Show with DOpus viewer");
	vecDblClk.push_back("Default Open action");
    vecDblClk.push_back("View Properties");

	configName = "dblclk_action";
	initData.config[configName] = vecDblClk;
    initData.config_desc(configName) = "Choose the default double click action.";

    var cmd = initData.AddCommand();
    cmd.name = "MusicTags";
    cmd.method = "onMusicTags";
    cmd.desc = scriptDesc;
    cmd.label = "MusicTags";
    cmd.template = "LOGREADER/S";
}

function onMusicTags(scriptCmdData) {

	var srcTab = scriptCmdData.func.sourcetab;

	var logPath = Script.Config["log_folder"];
    if (logPath.substr(-1) == "\\") {
        logPath = logPath.substr(0, logPath.length - 1);
    }
    logPath = DOpus.FSUtil.Resolve(logPath);
    logPath = DOpus.FSUtil.NewPath(logPath);
	
	var fso = new ActiveXObject("Scripting.FilesystemObject");
	tmpFolder = fso.GetSpecialFolder(2);

	if (scriptCmdData.func.args.got_arg.logreader) {
        logReader(null, logPath);
        return;
    }
	
    if (srcTab.stats.selfiles == 0) {
		DOpus.ClearOutput();
        DOpus.Output("No files selected.");
        return;
    }

    var dlg = DOpus.Dlg;
    dlg.title = scriptName + " " + scriptVersion + " - Directory Opus";
	dlg.template = "dlgMusic";
    dlg.LoadPosition("Steve_MusicTag");
    dlg.detach = true;
    dlg.Create();
	dlg.AddHotkey("ALL", "ctrl+a");
	dlg.AddHotKey("NONE", "ctrl+n");
	dlg.SetTimer(100, "timer");

    dlg.Control("staticNotify").label = "Ready.";
	dlg.Control("listFiles").focus = true;
	dlg.Control("btnSave").enabled = false;
	
	if (Script.Config["show_cover_art"] == false) {
		dlg.Control("grpCover").visible = false;
		dlg.Control("staticCover").visible = false;
		dlg.Control("staticCoverText").visible = false;
	}

	var fileList = dlg.Control("listFiles");

	for (var eCols = new Enumerator(Script.Config["columns_order"]); !eCols.atEnd(); eCols.moveNext()) {
		var colIndex = fileList.columns.AddColumn(eCols.item());
		var colName = fileList.columns(colIndex).name;

		colIndex = colIndex - 1;

		switch (colName) {
			case "Track": TRACK = colIndex;
				break;
			case "Title": TITLE = colIndex;
				break;
			case "Artist": ARTIST = colIndex;
				break;
			case "Album": ALBUM = colIndex;
				break;
			case "Album Artist": ALBUMARTIST = colIndex;
				break;
			case "Composer": COMPOSER = colIndex;
				break;
			case "Disc": DISC = colIndex;
				break;
			case "Year": YEAR = colIndex;
				break;
			case "Genre": GENRE = colIndex;
				break;
			case "Comment": COMMENT = colIndex;
		}
	}

	populateList(fileList, srcTab, dlg);
	
    dlg.Show();
    
    while (true) {
        var msg = dlg.GetMsg();
        if (!msg.result) break;

		if (msg.event == "selchange") {			
			newSelection = fileList.value.count;
			switch (msg.control) {
				case "listFiles":
					if (fileList.value.count === 1) {
						selectionChangedSingle(fileList, dlg, srcTab, tmpFolder);
						if (Script.Config["show_cover_art"] == true) {
							updateCover(fileList, srcTab, dlg, tmpFolder, null);
						}
					}
					if (fileList.value.count === 0) {
						selectionChangedNone(fileList, dlg, srcTab, tmpFolder);
					}
			}
		}

		if (msg.event == "timer") {
			if (oldSelection != newSelection) {
				if (fileList.value.count > 1) {
					selectionChangedMulti(fileList, dlg, srcTab, tmpFolder);
					if (Script.Config["show_cover_art"] == true) {
						updateCover(fileList, srcTab, dlg, tmpFolder, null);
					}
				}
			}
		}

		if (msg.event == "click") {
			switch (msg.control) {
				case "btnAll": fileList.focus = true;
					oldSelection = fileList.value.count;
					fileList.SelectItem(-1);
					newSelection = fileList.value.count;
					break;
				case "btnNone": fileList.focus = true;
					oldSelection = fileList.value.count;
					fileList.DeselectItem(-1);
					newSelection = fileList.value.count;
					break;
				case "btnReload": fileList.focus = true;
					fileList.DeselectItem(-1);
					populateList(fileList, srcTab, dlg);
					break;
				case "btnSave": saveChanges(srcTab, dlg, fileList, logPath);
					break;
				case "btnLog": logReader(dlg, logPath);
			}
		}

		if (msg.event == "rclick") {
			switch (msg.control) {
				case "listFiles": popupMenu(dlg, srcTab, scriptCmdData, fileList);
			}
		}

		if (msg.event == "hotkey") {
			switch (msg.control) {
				case "ALL": fileList.focus = true;
				oldSelection = fileList.value.count;
				fileList.SelectItem(-1);
				newSelection = fileList.value.count;
				break;
				case "NONE": fileList.focus = true;
				oldSelection = fileList.value.count;
				fileList.DeselectItem(-1);
				newSelection = fileList.value.count;
			}
			
		}

		if (msg.event == "dblclk" && msg.control == "listFiles") {
            if (Script.Config["dblclk_action"] == 0) {
                for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
						scriptCmdData.func.command.RunCommand("Show \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
			}
            if (Script.Config["dblclk_action"] == 1) {
				for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
						scriptCmdData.func.command.RunCommand("FileType ACTION=dblclk FILE \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
            }
            if (Script.Config["dblclk_action"] == 2) {
                for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
						scriptCmdData.func.command.RunCommand("Properties FILE \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
			}
        }
	}
	var factory = DOpus.Create();
	factory.command.RunCommand("Delete NORECYCLE QUIET ALL FORCE FILE=\"" + tmpFolder + "\\*.mt_tmp\"");
    dlg.SavePosition("Steve_MusicTag");    
}

function popupMenu(dlg, srcTab, scriptCmdData, fileList) {

    var dlgMenu = DOpus.Dlg;

    dlgMenu.choices = DOpus.Create.Vector("Open...", "Show", "Properties");
    dlgMenu.menu = DOpus.Create.Vector(1, 0, 0);
    var menuReturn = dlgMenu.Show;

	switch (menuReturn) {
        case 1: for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
					scriptCmdData.func.command.RunCommand("FileType ACTION=dblclk FILE \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
				break;
        case 2: for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
						scriptCmdData.func.command.RunCommand("Show \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
            	break;
        case 3: for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
					if (eItems.item().selected == true) {
						scriptCmdData.func.command.RunCommand("Properties FILE \"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\"");
					}
				}
	}
}

function logReader(dlg, logPath) {
	var arrLines = [];

    var dlgLog = DOpus.Dlg;
    dlgLog.title = "Log Reader - Music Tags";
    dlgLog.template = "dlgLog";
    dlgLog.window = dlg;
    dlgLog.disable_window = dlg;
    dlgLog.LoadPosition("Steve_LogReader");
    dlgLog.detach = true;
    dlgLog.Create();
    
    dlgLog.Control("staticLogFile").label = logPath + "\\MusicTags.log";

    var fso = new ActiveXObject("Scripting.FileSystemObject");
    var logFile = fso.OpenTextFile(logPath + "\\MusicTags.log", 1, true);
    if (fso.FileExists(logPath + "\\MusicTags.log")) {

        if (!logFile.AtEndOfStream) {
            var logContents = logFile.ReadAll();
            arrLines = logContents.split(/\r\n|\n/);
        }
    }
    logFile.Close();
    
    updateLog(dlg, dlgLog, arrLines);

    dlgLog.Control("listLog").columns.AutoSize();
    dlgLog.Show();
    
    while (true) {
        var msg = dlgLog.GetMsg();
        if (!msg.result) break;
        
        if (msg.event == "editchange" && dlgLog.Control("editFilter").focus == true) {
            updateLog(dlg, dlgLog, arrLines);
        }

        if (msg.event == "click" && dlgLog.Control("btnReset").focus == true) {
            dlgLog.Control("editFilter").value = "";
            updateLog(dlg, dlgLog, arrLines);
        }

        if (msg.event == "dblclk" && dlgLog.Control("listLog").focus == true) {
            dlgLog.Control("editFilter").value = dlgLog.Control("listLog").GetItemAt(dlgLog.Control("listLog").value).subitems(0);
            updateLog(dlg, dlgLog, arrLines);
        }
    }
    dlgLog.SavePosition("Steve_LogReader");
}

function updateLog(dlg, dlgLog, arrLines) {
    var intItem = 1;
    var strFilter = dlgLog.Control("editFilter").value;
    dlgLog.Control("listLog").RemoveItem(-1);
    for (i=0; i < arrLines.length; i ++) {
        var strFile, strMeta, strFrom, strTo = "";
        var intTmp, intTmp2;
        if (arrLines[i].slice(0,1) == "\"") {

                intTmp = arrLines[i].search(/\[/);
                strFile = arrLines[i].substring(1,intTmp-2);
                var tmpstrFile = strFile;
                tmpstrFile = tmpstrFile.toLowerCase();
                strFilter = strFilter.toLowerCase();
                var intFilter = tmpstrFile.search(strFilter);
                if (intFilter > -1) {
                    intTmp = intTmp + 1;
                    intTmp2 = arrLines[i].search(/\]/);
                    strMeta = arrLines[i].substring(intTmp, intTmp2);
                    intTmp = arrLines[i].search("From=");
                    intTmp2 = arrLines[i].search("To=");
                    strFrom = arrLines[i].substring(intTmp + 6, intTmp2 - 2);
                    strTo = arrLines[i].substring(intTmp2 + 4);
                    strTo = strTo.replace(/\"/, "");
                    dlgLog.Control("listLog").AddItem(intItem);
                    dlgLog.Control("listLog").GetItemByName(intItem).subitems(0) = strFile;
                    dlgLog.Control("listLog").GetItemByName(intItem).subitems(1) = strMeta;
                    dlgLog.Control("listLog").GetItemByName(intItem).subitems(2) = strFrom;
                    dlgLog.Control("listLog").GetItemByName(intItem).subitems(3) = strTo;
                    intItem = intItem + 1;
            }
        }
    }
}


function saveChanges(srcTab, dlg, fileList, logPath) {

	if (Script.Config["confirm_save"] == true) {
        var dlgConfirm = DOpus.Dlg;
        dlgConfirm.window = dlg;
        dlgConfirm.message = "Are you sure you want to save your changes to " + fileList.value.count + " file/s?";
        dlgConfirm.title = "Save Confirmation";
        dlgConfirm.buttons = "Ok|Cancel";

        var dlgResult = dlgConfirm.Show();
    }
    else {
        var dlgResult = 1;
    }

    if (dlgResult == 1) {

		dlg.Control("staticNotify").label = "Writing metadata...";
		var factory = DOpus.Create();
        var dopDate = factory.Date();
		var cmd = factory.command;
		cmd.SetModifier("sync");

		if (Script.Config["log_changes"]) {
            
            var fso = new ActiveXObject("Scripting.FileSystemObject");
            var logFile = fso.OpenTextFile(logPath + "\\MusicTags.log", 8, true);
            logFile.WriteLine("--------------------");
            logFile.WriteLine(dopDate.Format("D#dd-MMM-yyyy T#HH:mm:ss"));
            logFile.WriteLine("--------------------");
        }

		for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
			if (eItems.item().selected == true) {
				if (fileList.GetItemAt(eItems.item()).subitems(TRACK) != dlg.Control("cmbTrack").label && dlg.Control("cmbTrack").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "track:" + dlg.Control("cmbTrack").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Track] From=\"" + fileList.GetItemAt(eItems.item()).subitems(TRACK) + "\" To=\"" + dlg.Control("cmbTrack").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(TITLE) != dlg.Control("cmbTitle").label && dlg.Control("cmbTitle").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "title:" + dlg.Control("cmbTitle").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Title] From=\"" + fileList.GetItemAt(eItems.item()).subitems(TITLE) + "\" To=\"" + dlg.Control("cmbTitle").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(ARTIST) != dlg.Control("cmbArtist").label && dlg.Control("cmbArtist").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "artist:" + dlg.Control("cmbArtist").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Artist] From=\"" + fileList.GetItemAt(eItems.item()).subitems(ARTIST) + "\" To=\"" + dlg.Control("cmbArtist").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(ALBUM) != dlg.Control("cmbAlbum").label && dlg.Control("cmbAlbum").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "album:" + dlg.Control("cmbAlbum").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Album] From=\"" + fileList.GetItemAt(eItems.item()).subitems(ALBUM) + "\" To=\"" + dlg.Control("cmbAlbum").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST) != dlg.Control("cmbAlbumArtist").label && dlg.Control("cmbAlbumArtist").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "albumartist:" + dlg.Control("cmbAlbumArtist").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Album Artist] From=\"" + fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST) + "\" To=\"" + dlg.Control("cmbAlbumArtist").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(COMPOSER) != dlg.Control("cmbComposer").label && dlg.Control("cmbComposer").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "composers:" + dlg.Control("cmbComposer").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Composer] From=\"" + fileList.GetItemAt(eItems.item()).subitems(COMPOSER) + "\" To=\"" + dlg.Control("cmbComposer").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(DISC) != dlg.Control("cmbDisc").label && dlg.Control("cmbDisc").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "discnumber:" + dlg.Control("cmbDisc").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Disc] From=\"" + fileList.GetItemAt(eItems.item()).subitems(DISC) + "\" To=\"" + dlg.Control("cmbDisc").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(YEAR) != dlg.Control("cmbYear").label && dlg.Control("cmbYear").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "year:" + dlg.Control("cmbYear").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Year] From=\"" + fileList.GetItemAt(eItems.item()).subitems(YEAR) + "\" To=\"" + dlg.Control("cmbYear").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(GENRE) != dlg.Control("cmbGenre").label && dlg.Control("cmbGenre").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "genre:" + dlg.Control("cmbGenre").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Genre] From=\"" + fileList.GetItemAt(eItems.item()).subitems(GENRE) + "\" To=\"" + dlg.Control("cmbGenre").label + "\"");
					}
				}
				if (fileList.GetItemAt(eItems.item()).subitems(COMMENT) != dlg.Control("cmbComment").label && dlg.Control("cmbComment").label != "<keep>") {
					cmd.AddLine("SetAttr FILE=\"" + srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name + "\" META \"" + "comment:" + dlg.Control("cmbComment").label + "\"");
					if (Script.Config["log_changes"]) {
						logFile.WriteLine("\"" + fileList.GetItemAt(eItems.item()).name + "\" [Comment] From=\"" + fileList.GetItemAt(eItems.item()).subitems(COMMENT) + "\" To=\"" + dlg.Control("cmbComment").label + "\"");
					}
				}
			}
		}
		if (cmd.linecount > 0) {
			cmd.Run()
			if (cmd.result === 0) {
				dlg.Control("staticNotify").label = "Metadata write failed.";
				DOpus.Delay(2000);
			}
			else {
				dlg.Control("staticNotify").label = "Metadata successfully written.";
				DOpus.Delay(2000);
			}
		}
		else {
			dlg.Control("staticNotify").label = "No metadata to write."
			DOpus.Delay(2000);
		}
		fileList.focus = true;
		fileList.DeselectItem(-1);
		populateList(fileList, srcTab, dlg);
	}
	if (Script.Config["log_changes"]) {
		logFile.Close();
	}
}

function updateCover(fileList, srcTab, dlg, tmpFolder, eItems) {
	
	var arrCover = [];
	var flgCoverArtSame = false;

	for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
		if (eItems.item().selected == true) {
			var filePath = DOpus.FSUtil.NewPath(srcTab.path + "\\" + fileList.GetItemAt(eItems.item()).name);
			var file = DOpus.FSUtil.GetItem(filePath);
			if (file.metadata == "audio" && file.metadata.audio.coverart) {
				if (file.metadata == "audio" && file.metadata.audio.coverart > 0 ) {	
					var art = file.metadata.audio.coverart(0);
					arrCover.push(DOpus.FSUtil.Hash(file.metadata.audio.coverart(0).data));
				}
				else {
					var art = null;
					arrCover.push(null);
				}
			}
		
			if (checkArray(arrCover)) {
				var tmpFile = DOpus.FSUtil.OpenFile(tmpFolder + "\\" + file.name_stem + ".mt_tmp", "w");
				if (art != null) {
					if (typeof(art.data) != null) {
						tmpFile.Write(art.data);
						tmpFile.Close();
						flgCoverArtSame = true;
					}
				}
				else {
					dlg.Control("staticCover").bg = "";
				 	dlg.Control("staticCoverText").bg = "";
				 	dlg.Control("staticCoverText").fg = "";
				 	dlg.Control("staticCover").label = "";
					dlg.Control("staticCoverText").label = "No cover art";
					flgCoverArtSame = false;
				}
			}
			else {
				dlg.Control("staticCover").bg = "";
				dlg.Control("staticCoverText").bg = "";
				dlg.Control("staticCoverText").fg = "";
				dlg.Control("staticCover").label = "";
				dlg.Control("staticCoverText").label = "Cover art varies";
				flgCoverArtSame = false;
			}
		}
	}
	if (flgCoverArtSame == true) {
		dlg.Control("staticCover").bg = "#000000";
		dlg.Control("staticCoverText").bg = "#000000";
		dlg.Control("staticCoverText").fg = "#FFFFFF";
		dlg.Control("staticCover").label = tmpFolder + "\\" + file.name_stem + ".mt_tmp";
		dlg.Control("staticCoverText").label = art.height + " x " + art.width + " x " + art.depth + " (" + art.size.fmt + ")";
		
	}
}

function checkArray(arrTag) {
	var boolReturn = true;
	for(x = 0; x < arrTag.length - 1; x++){
		if (arrTag[x] != arrTag[x + 1]) {
			boolReturn = false;            
		}
	}
	return boolReturn;
}

function clearFields(dlg) {
	dlg.Control("cmbTrack").RemoveItem(-1);
	dlg.Control("cmbTitle").RemoveItem(-1);
	dlg.Control("cmbArtist").RemoveItem(-1);
	dlg.Control("cmbAlbum").RemoveItem(-1);
	dlg.Control("cmbAlbumArtist").RemoveItem(-1);
	dlg.Control("cmbComposer").RemoveItem(-1);
	dlg.Control("cmbDisc").RemoveItem(-1);
	dlg.Control("cmbYear").RemoveItem(-1);
	dlg.Control("cmbComment").RemoveItem(-1);

	dlg.Control("cmbTrack").label = ""; dlg.Control("cmbTrack").AddItem("<keep>");
	dlg.Control("cmbTitle").label = ""; dlg.Control("cmbTitle").AddItem("<keep>");
	dlg.Control("cmbArtist").label = ""; dlg.Control("cmbArtist").AddItem("<keep>");
	dlg.Control("cmbAlbum").label = ""; dlg.Control("cmbAlbum").AddItem("<keep>");
	dlg.Control("cmbAlbumArtist").label = ""; dlg.Control("cmbAlbumArtist").AddItem("<keep>");
	dlg.Control("cmbComposer").label = ""; dlg.Control("cmbComposer").AddItem("<keep>");
	dlg.Control("cmbDisc").label = ""; dlg.Control("cmbDisc").AddItem("<keep>");
	dlg.Control("cmbYear").label = ""; dlg.Control("cmbYear").AddItem("<keep>");
	dlg.Control("cmbGenre").label = "";
	dlg.Control("cmbComment").label = ""; dlg.Control("cmbComment").AddItem("<keep>");
}

function selectionChangedNone(fileList, dlg, srcTab, tmpFolder) {
	dlg.Control("staticStats").label = fileList.value.count + "/" + fileList.count + " Selected";
	clearFields(dlg);
	dlg.Control("staticCover").label = "";
	dlg.Control("staticCover").bg = "";
	dlg.Control("staticCoverText").bg = "";
	dlg.Control("staticCoverText").fg = "";
	dlg.Control("staticCoverText").label = "";
	dlg.Control("btnSave").enabled = false;
	return;
}

function selectionChangedSingle(fileList, dlg, srcTab, tmpFolder) {
	dlg.Control("staticStats").label = fileList.value.count + "/" + fileList.count + " Selected";
	clearFields(dlg);
	for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
		if (eItems.item().selected == true) {
			dlg.Control("cmbTrack").label = fileList.GetItemAt(eItems.item()).subitems(TRACK);
				dlg.Control("cmbTrack").AddItem(fileList.GetItemAt(eItems.item()).subitems(TRACK));
			dlg.Control("cmbTitle").label = fileList.GetItemAt(eItems.item()).subitems(TITLE);
				dlg.Control("cmbTitle").AddItem(fileList.GetItemAt(eItems.item()).subitems(TITLE));
			dlg.Control("cmbArtist").label = fileList.GetItemAt(eItems.item()).subitems(ARTIST);
				dlg.Control("cmbArtist").AddItem(fileList.GetItemAt(eItems.item()).subitems(ARTIST));
			dlg.Control("cmbAlbum").label = fileList.GetItemAt(eItems.item()).subitems(ALBUM);
				dlg.Control("cmbAlbum").AddItem(fileList.GetItemAt(eItems.item()).subitems(ALBUM));
			dlg.Control("cmbAlbumArtist").label = fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST);
				dlg.Control("cmbAlbumArtist").AddItem(fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST));
			dlg.Control("cmbComposer").label = fileList.GetItemAt(eItems.item()).subitems(COMPOSER);
				dlg.Control("cmbComposer").AddItem(fileList.GetItemAt(eItems.item()).subitems(COMPOSER));
			dlg.Control("cmbDisc").label = fileList.GetItemAt(eItems.item()).subitems(DISC);
				dlg.Control("cmbDisc").AddItem(fileList.GetItemAt(eItems.item()).subitems(DISC));
			dlg.Control("cmbYear").label = fileList.GetItemAt(eItems.item()).subitems(YEAR);
				dlg.Control("cmbYear").AddItem(fileList.GetItemAt(eItems.item()).subitems(YEAR));
			dlg.Control("cmbGenre").label = fileList.GetItemAt(eItems.item()).subitems(GENRE);
			dlg.Control("cmbComment").label = fileList.GetItemAt(eItems.item()).subitems(COMMENT);
				dlg.Control("cmbComment").AddItem(fileList.GetItemAt(eItems.item()).subitems(COMMENT));
		}
	}
	dlg.Control("btnSave").enabled = true;
	dlg.Control("staticNotify").label = "Ready.";
	return; 
}

function selectionChangedMulti(fileList, dlg, srcTab, tmpFolder) {

	oldSelection = fileList.value.count;
	dlg.Control("staticStats").label = fileList.value.count + "/" + fileList.count + " Selected";
	clearFields(dlg);
	dlg.Control("staticNotify").label = "Comparing metadata...";
	var arrTrack = [], arrTitle = [], arrArtist = [], arrAlbum = [], arrAlbumArtist = [], arrComposer = [];
	var arrDisc = [], arrYear = [], arrGenre = [], arrComment = [];
	for (var eItems = new Enumerator(fileList.value); !eItems.atEnd(); eItems.moveNext()) {
		if (eItems.item().selected == true) {
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(TRACK)) !== undefined) {
				arrTrack.push(fileList.GetItemAt(eItems.item()).subitems(TRACK));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(TRACK) != "" && !dlg.Control("cmbTrack").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(TRACK))) {
				dlg.Control("cmbTrack").AddItem(fileList.GetItemAt(eItems.item()).subitems(TRACK));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(TITLE)) !== undefined) {
				arrTitle.push(fileList.GetItemAt(eItems.item()).subitems(TITLE));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(TITLE) != "" && !dlg.Control("cmbTitle").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(TITLE))) {
				dlg.Control("cmbTitle").AddItem(fileList.GetItemAt(eItems.item()).subitems(TITLE));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(ARTIST)) !== undefined) {
				arrArtist.push(fileList.GetItemAt(eItems.item()).subitems(ARTIST));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(ARTIST) != "" && !dlg.Control("cmbArtist").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(ARTIST))) {
				dlg.Control("cmbArtist").AddItem(fileList.GetItemAt(eItems.item()).subitems(ARTIST));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(ALBUM)) !== undefined) {
				arrAlbum.push(fileList.GetItemAt(eItems.item()).subitems(ALBUM));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(ALBUM) != "" && !dlg.Control("cmbAlbum").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(ALBUM))) {
					dlg.Control("cmbAlbum").AddItem(fileList.GetItemAt(eItems.item()).subitems(ALBUM));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST)) !== undefined) {
				arrAlbumArtist.push(fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST) != "" && !dlg.Control("cmbAlbumArtist").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST))) {
				dlg.Control("cmbAlbumArtist").AddItem(fileList.GetItemAt(eItems.item()).subitems(ALBUMARTIST));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(COMPOSER)) !== undefined) {
				arrComposer.push(fileList.GetItemAt(eItems.item()).subitems(COMPOSER));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(COMPOSER) != "" && !dlg.Control("cmbComposer").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(COMPOSER))) {
				dlg.Control("cmbComposer").AddItem(fileList.GetItemAt(eItems.item()).subitems(COMPOSER));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(DISC)) !== undefined) {
				arrDisc.push(fileList.GetItemAt(eItems.item()).subitems(DISC));					
			}
			if (fileList.GetItemAt(eItems.item()).subitems(DISC) != "" && !dlg.Control("cmbDisc").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(DISC))) {
				dlg.Control("cmbDisc").AddItem(fileList.GetItemAt(eItems.item()).subitems(DISC));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(YEAR)) !== undefined) {
				arrYear.push(fileList.GetItemAt(eItems.item()).subitems(YEAR));
			}
			if (fileList.GetItemAt(eItems.item()).subitems(YEAR) != "" && !dlg.Control("cmbYear").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(YEAR))) {
				dlg.Control("cmbYear").AddItem(fileList.GetItemAt(eItems.item()).subitems(YEAR));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(GENRE)) !== undefined) {
				arrGenre.push(fileList.GetItemAt(eItems.item()).subitems(GENRE));
			}
			if (typeof(fileList.GetItemAt(eItems.item()).subitems(COMMENT)) !== undefined) {
				arrComment.push(fileList.GetItemAt(eItems.item()).subitems(COMMENT));					
			}
			if (fileList.GetItemAt(eItems.item()).subitems(COMMENT) != "" && !dlg.Control("cmbComment").GetItemByName(fileList.GetItemAt(eItems.item()).subitems(COMMENT))) {
				dlg.Control("cmbComment").AddItem(fileList.GetItemAt(eItems.item()).subitems(COMMENT));
			}
		}
	}
	if (checkArray(arrTrack)) {
		dlg.Control("cmbTrack").label = arrTrack[0];
	}
	else dlg.Control("cmbTrack").label = "<keep>";
	if (checkArray(arrTitle)) {
		dlg.Control("cmbTitle").label = arrTitle[0];
	}
	else dlg.Control("cmbTitle").label = "<keep>";
	if (checkArray(arrArtist)) {
		dlg.Control("cmbArtist").label = arrArtist[0];
	}
	else dlg.Control("cmbArtist").label = "<keep>";
	if (checkArray(arrAlbum)) {
		dlg.Control("cmbAlbum").label = arrAlbum[0];
	}
	else dlg.Control("cmbAlbum").label = "<keep>";
	if (checkArray(arrAlbumArtist)) {
		dlg.Control("cmbAlbumArtist").label = arrAlbumArtist[0];
	}
	else dlg.Control("cmbAlbumArtist").label = "<keep>";
	if (checkArray(arrComposer)) {
		dlg.Control("cmbComposer").label = arrComposer[0];
	}
	else dlg.Control("cmbComposer").label = "<keep>";
	if (checkArray(arrDisc)) {
		dlg.Control("cmbDisc").label = arrDisc[0];
	}
	else dlg.Control("cmbDisc").label = "<keep>";
	if (checkArray(arrYear)) {
		dlg.Control("cmbYear").label = arrYear[0];
	}
	else dlg.Control("cmbYear").label = "<keep>";
	if (checkArray(arrGenre)) {
		dlg.Control("cmbGenre").label = arrGenre[0];
	}
	else dlg.Control("cmbGenre").label = "<keep>";
	if (checkArray(arrComment)) {
		dlg.Control("cmbComment").label = arrComment[0];
	}
	else dlg.Control("cmbComment").label = "<keep>";
	
	dlg.Control("staticNotify").label = "Ready.";
	dlg.Control("btnSave").enabled = true;	
}

function populateList(fileList, srcTab, dlg) {

	fileList.RemoveItem(-1);
	
    for (var enumFiles = new Enumerator(srcTab.selected); !enumFiles.atEnd(); enumFiles.moveNext()) {

        if (enumFiles.item().metadata == "audio" ) { //&& enumFiles.item().ext == ".mp3"
            fileList.AddItem(enumFiles.item().name);
            fileList.GetItemByName(enumFiles.item().name).subitems(TRACK) = enumFiles.item().metadata.audio.mp3track;
			fileList.GetItemByName(enumFiles.item().name).subitems(TITLE) = enumFiles.item().metadata.audio.mp3title;
				dlg.Control("cmbTitle").AddItem(fileList.GetItemByName(enumFiles.item().name).subitems(TITLE));
            fileList.GetItemByName(enumFiles.item().name).subitems(ARTIST) = enumFiles.item().metadata.audio.mp3artist;
            fileList.GetItemByName(enumFiles.item().name).subitems(ALBUM) = enumFiles.item().metadata.audio.mp3album;
			fileList.GetItemByName(enumFiles.item().name).subitems(ALBUMARTIST) = enumFiles.item().metadata.audio.mp3albumartist;
			fileList.GetItemByName(enumFiles.item().name).subitems(COMPOSER) = enumFiles.item().metadata.audio.composers;
			fileList.GetItemByName(enumFiles.item().name).subitems(DISC) = enumFiles.item().metadata.audio.mp3disc;
            fileList.GetItemByName(enumFiles.item().name).subitems(YEAR) = enumFiles.item().metadata.audio.mp3year;
            fileList.GetItemByName(enumFiles.item().name).subitems(GENRE) = enumFiles.item().metadata.audio.mp3genre;
			fileList.GetItemByName(enumFiles.item().name).subitems(COMMENT) = enumFiles.item().metadata.audio.mp3comment;
        }
	}
	
	if (fileList.count == 0) {
		dlg.Control("staticNotify").label = "No mp3 files selected.";
	}
	else {
		dlg.Control("staticStats").label = fileList.value.count + "/" + fileList.count + " Selected";
	}
    fileList.columns.AutoSize();
}

function OnAboutScript(aboutData){
    dlg = DOpus.Dlg;
    dlg.window = aboutData.window;
    dlg.title = scriptName + scriptVersion + " - Directory Opus";
    dlg.message = scriptName + " v" + scriptVersion + "\t\t\t\t" + scriptDate + "\n\n" + scriptDesc + "\n\n" + scriptCopyright;
    dlg.buttons = "Close";
    dlg.icon = "info";
    dlg.show;
}

==SCRIPT RESOURCES
<resources>
	<resource name="dlgLog" type="dialog">
		<dialog fontsize="8" height="263" lang="english" resize="yes" width="347">
			<control halign="left" height="12" name="editFilter" resize="w" type="edit" width="220" x="67" y="14" />
			<control height="14" name="btnReset" resize="x" title="Reset" type="button" width="50" x="292" y="13" />
			<control fullrow="yes" height="210" name="listLog" nosortheader="yes" resize="wh" type="listview" viewmode="details" width="337" x="5" y="31">
				<columns>
					<item text="#" />
					<item text="Filename" />
					<item text="Metadata" />
					<item text="From" />
					<item text="To" />
				</columns>
			</control>
			<control close="0" height="14" name="btnClose" resize="xy" title="Close" type="button" width="50" x="292" y="245" />
			<control halign="left" height="8" name="staticLogFile" resize="w" type="static" width="336" x="5" y="3" />
			<control halign="left" height="8" name="staticFilter" title="Filename Filter:" type="static" width="54" x="5" y="15" />
		</dialog>
	</resource>
	<resource name="dlgMusic" type="dialog">
		<dialog fontsize="8" height="303" lang="english" resize="yes" width="609">
			<control default="yes" height="14" name="btnSave" title="Save" type="button" width="50" x="6" y="4" />
			<control height="14" name="btnAll" resize="x" title="Select All" type="button" width="50" x="498" y="4" />
			<control height="14" name="btnNone" resize="x" title="Select None" type="button" width="50" x="554" y="4" />
			<control edit="yes" height="40" name="cmbTitle" type="combo" width="167" x="63" y="23">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbArtist" type="combo" width="167" x="63" y="40">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbAlbum" type="combo" width="167" x="63" y="57">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbYear" type="combo" width="58" x="63" y="74">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbTrack" type="combo" width="58" x="172" y="74">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbGenre" sort="yes" type="combo" width="167" x="63" y="91">
				<contents>
					<item text="&lt;keep&gt;" />
					<item text="Blues" />
					<item text="Classic Rock" />
					<item text="Country" />
					<item text="Dance" />
					<item text="Disco" />
					<item text="Funk" />
					<item text="Grunge" />
					<item text="Hip-Hop" />
					<item text="Jazz" />
					<item text="Metal" />
					<item text="New Age" />
					<item text="Oldies" />
					<item text="Other" />
					<item text="Pop" />
					<item text="Rhythm and Blues" />
					<item text="Rap" />
					<item text="Reggae" />
					<item text="Rock" />
					<item text="Techno" />
					<item text="Industrial" />
					<item text="Alternative" />
					<item text="Ska" />
					<item text="Death Metal" />
					<item text="Pranks" />
					<item text="Soundtrack" />
					<item text="Euro-Techno" />
					<item text="Ambient" />
					<item text="Trip-Hop" />
					<item text="Vocal" />
					<item text="Jazz &amp; Funk" />
					<item text="Fusion" />
					<item text="Trance" />
					<item text="Classical" />
					<item text="Instrumental" />
					<item text="Acid" />
					<item text="House" />
					<item text="Game" />
					<item text="Sound clip" />
					<item text="Gospel" />
					<item text="Noise" />
					<item text="Alternative Rock" />
					<item text="Bass" />
					<item text="Soul" />
					<item text="Punk" />
					<item text="Space" />
					<item text="Meditative" />
					<item text="Instrumental Pop" />
					<item text="Instrumental Rock" />
					<item text="Ethnic" />
					<item text="Gothic" />
					<item text="Darkwave" />
					<item text="Techno-Industrial" />
					<item text="Electronic" />
					<item text="Pop-Folk" />
					<item text="Eurodance" />
					<item text="Dream" />
					<item text="Southern Rock" />
					<item text="Comedy" />
					<item text="Cult" />
					<item text="Gangsta" />
					<item text="Top 40" />
					<item text="Christian Rap" />
					<item text="Pop/Funk" />
					<item text="Jungle music" />
					<item text="Native US" />
					<item text="Cabaret" />
					<item text="New Wave" />
					<item text="Psychedelic" />
					<item text="Rave" />
					<item text="Showtunes" />
					<item text="Trailer" />
					<item text="Lo-Fi" />
					<item text="Tribal" />
					<item text="Acid Punk" />
					<item text="Acid Jazz" />
					<item text="Polka" />
					<item text="Retro" />
					<item text="Musical" />
					<item text="Rock&amp;Roll" />
					<item text="Hard Rock" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbComment" type="combo" width="167" x="63" y="108">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbAlbumArtist" type="combo" width="167" x="63" y="125">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbComposer" type="combo" width="167" x="63" y="142">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control edit="yes" height="40" name="cmbDisc" type="combo" width="167" x="63" y="159">
				<contents>
					<item text="&lt;keep&gt;" />
				</contents>
			</control>
			<control fullrow="yes" height="262" multisel="yes" name="listFiles" resize="wh" type="listview" viewmode="details" width="368" x="236" y="23">
				<columns>
					<item text="Filename" />
				</columns>
			</control>
			<control halign="left" height="8" name="staticTitle" title="Title:" type="static" width="48" x="8" y="25" />
			<control halign="left" height="8" name="staticArtist" title="Artist:" type="static" width="48" x="8" y="42" />
			<control halign="left" height="8" name="staticAlbum" title="Album:" type="static" width="48" x="8" y="59" />
			<control halign="left" height="8" name="staticYear" title="Year:" type="static" width="48" x="8" y="76" />
			<control halign="left" height="8" name="staticTrack" title="Track:" type="static" width="30" x="131" y="76" />
			<control halign="left" height="8" name="staticGenre" title="Genre:" type="static" width="48" x="8" y="93" />
			<control halign="left" height="8" name="staticComment" title="Comment:" type="static" width="48" x="8" y="110" />
			<control halign="left" height="8" name="staticAlbumArtist" title="AlbumArtist:" type="static" width="48" x="8" y="127" />
			<control halign="left" height="8" name="staticAlbumArtist1" title="Composer:" type="static" width="48" x="8" y="144" />
			<control halign="left" height="8" name="staticDisc" title="Disc Number:" type="static" width="48" x="8" y="161" />
			<control halign="left" height="86" image="yes" name="staticCover" type="static" width="100" x="65" y="184" />
			<control height="112" name="grpCover" resize="h" title="Cover Art" type="group" width="223" x="7" y="173" />
			<control halign="left" height="8" name="staticNotify" resize="yw" title="Ready" type="static" width="425" x="8" y="290" />
			<control halign="right" height="8" name="staticStats" resize="xy" type="static" width="151" x="445" y="290" />
			<control height="14" name="btnReload" resize="x" title="Reload" type="button" width="50" x="442" y="4" />
			<control halign="center" height="8" name="staticCoverText" type="static" width="100" x="65" y="270" />
			<control height="14" name="btnLog" title="View Log..." type="button" width="50" x="61" y="4" />
		</dialog>
	</resource>
</resources>