var cmd = DOpus.Create().Command();
var stt = DOpus.Create().StringTools();
var fsu = DOpus.FSUtil();
var fso = new ActiveXObject('Scripting.FileSystemObject');
var wsh = new ActiveXObject('WScript.Shell');
var exifColumns = DOpus.Create().Vector();
var exifTags = DOpus.Create().Map();
var vecBlob = DOpus.Create().Vector();


// -- Adjust to your system. Copy the path to exiftool.exe with 'Edit - Copy Other - Copy Full Pathnames (Double Backslashes)'
var exeExifTool = fsu.Resolve('/bin\\exiftool\\exiftool.exe');

// -- Adjust to your preferences. Use double backslashes.
var cacheFolder = fsu.Resolve('/profile\\ExifToolCache');

// Add extensions the script should filter
// var specialExt = DOpus.Create().StringSetI('.iso', '.mkv');
var specialExt = DOpus.Create().StringSetI('.jpg', '.epub', '.txt');

// Pick one of the three options (by out-commenting the other two) to decide which files the script should process
// var filterExt = 1; // process only files with a specialExt
var filterExt = 0; // process all files
// var filterExt = -1; // do not process files with a specialExt

// Set to false if you don't want any logging
var log = true;


// Column definitions go here.
// group, tag: reference for ExifTool (mandatory)
// name, label, header: adjust to your preferences (optional)
// justify: like Opus standard for columns (optional)
// type: datetime, date, time, number. String, if left empty (optional)
// defaultValue: value, if no tag is found via ExifTool (optional)

// group, tag, name, label, header, defaultValue, justify, type

exifColumns.push_back(DefineColumn('Canon', 'CanonExposureMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Canon', 'FocusMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Canon', 'MeteringMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Canon', 'NumAFPoints', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Canon', 'OneShotAFRelease', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Canon', 'ValidAFPoints', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'Aperture', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Composite', 'AvgBitrate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'CircleOfConfusion', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'Duration', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'FOV', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'FocalLength35efl', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'HyperfocalDistance', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'ImageSize', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'LensID', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'LightValue', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'Megapixels', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'Rotation', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Composite', 'ShootingMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'ShutterSpeed', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Composite', 'SubSecCreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('Composite', 'SubSecDateTimeOriginal', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('Composite', 'SubSecModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('EXE', 'CompanyName', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXE', 'MachineType', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXE', 'SubsystemVersion', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXE', 'TimeStamp', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('EXIF', 'ApertureValue', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'CreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('EXIF', 'DateTimeOriginal', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('EXIF', 'ExposureCompensation', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'ExposureMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'ExposureProgram', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'ExposureTime', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'FNumber', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'Flash', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'FocalLength', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'LensInfo', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'LensModel', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'LensSerialNumber', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'Make', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'Model', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'ModifyDate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'Orientation', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'XResolution', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'YResolution', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('EXIF', 'XPComment', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('ExifIFD', 'DateTimeOriginal', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('File', 'EncodingProcess', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('File', 'FileAccessDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('File', 'FileCreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('File', 'FileModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('File', 'FileTypeExtension', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'ApertureSetting', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'DateTimeOriginal', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('H264', 'ExposureProgram', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'ExposureTime', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'FNumber', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('H264', 'Focus', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'Gain', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'ImageHeight', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'ImageStabilization', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'ImageWidth', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'Make', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'Model', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'TimeCode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('H264', 'WhiteBalance', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('ID3', 'Genre', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('ID3', 'ReleaseTime', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('ID3', 'Subtitle', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('ID3', 'Year', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('M2TS', 'AudioBitrate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('M2TS', 'AudioChannels', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('M2TS', 'AudioSampleRate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('M2TS', 'Duration', '', '', '', '', '', 'time'));
exifColumns.push_back(DefineColumn('M2TS', 'SurroundMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('M2TS', 'VideoStreamType', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('MakerNotes', 'CameraOrientation', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('MakerNotes', 'CanonExposureMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('MakerNotes', 'CanonFirmwareVersion', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('MakerNotes', 'CanonModelID', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('MakerNotes', 'ShutterCount', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('MakerNotes', 'WhiteBalance', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Matroska', 'DateTimeOriginal', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Matroska', 'DisplayHeight', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Matroska', 'DisplayWidth', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Matroska', 'Duration', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Matroska', 'ImageHeight', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Matroska', 'ImageWidth', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('Matroska', 'TrackNumber', '', '', '', '', 'number', ''));
exifColumns.push_back(DefineColumn('PDF', 'CreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('PDF', 'Creator', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('PDF', 'ModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('PDF', 'PageCount', '', '', '', '', '', 'number'));
exifColumns.push_back(DefineColumn('PDF', 'Producer', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('PDF', 'Title', '', '', '', '', 'left', ''));
// exifColumns.push_back(DefineColumn('PDF', 'Title', 'PDF Title äöü ÄÖÜ ß Name', 'PDF Title äöü ÄÖÜ ß Label', 'PDF Title äöü ÄÖÜ ß Header', 'PDF Title äöü ÄÖÜ ß Default', 'left', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'AudioAvgBitrate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'CompressorID', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'ContentCreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'CreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'CreationDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'DateAcquired', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'DateTimeOriginal', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'Duration', '', '', '', '', '', 'time'));
exifColumns.push_back(DefineColumn('QuickTime', 'EncodingTime', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'LocationDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'MajorBrand', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'Make', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'MediaCreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'MediaDuration', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'MediaModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'MinorVersion', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'Model', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'ModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'Title', '', '', '', 'äöü ÄÖÜ ß 123', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'TrackCreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'TrackDuration', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'TrackModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoAvgBitrate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoAvgFrameRate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoCodec', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoFrameRate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoMaxBitrate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoMaxFrameRate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'VideoSize', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'XResolution', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('QuickTime', 'YResolution', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('RIFF', 'AvgBytesPerSec', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('RIFF', 'BitsPerSample', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('RIFF', 'Encoding', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('RIFF', 'NumChannels', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('RIFF', 'SampleRate', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('Sony', 'FocusMode', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'CreationDateValue', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XML', 'DeviceManufacturer', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'DeviceModelName', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'DeviceSerialNo', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'VideoFormatVideoFrameCaptureFps', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'VideoFormatVideoFrameFormatFps', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'VideoFormatVideoFrameVideoCodec', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'VideoFormatVideoLayoutNumOfVerticalLine', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XML', 'VideoFormatVideoLayoutPixel', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Contributor', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'CreateDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XMP', 'Creator', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'CreatorTool', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Date', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XMP', 'DateCreated', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XMP', 'Description', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Format', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Headline', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'MetadataDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XMP', 'ModifyDate', '', '', '', '', '', 'datetime'));
exifColumns.push_back(DefineColumn('XMP', 'Producer', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Subject', '', '', '', '', '', ''));
exifColumns.push_back(DefineColumn('XMP', 'Title', '', '', '', '', 'left', ''));
exifColumns.push_back(DefineColumn('XMP', 'XMPToolkit', '', '', '', '', '', ''));


function DefineColumn(group, tag, name, label, header, defaultValue, justify, type) {
    var map = DOpus.Create().Map();
    var tmp = (group + '-' + tag);

    map('group') = group;
    map('tag') = tag;
    map('name') = name == '' ? tmp : stt.Decode(name, 'utf8');
    map('label') = label == '' ? tmp : stt.Decode(label, 'utf8');
    map('header') = header == '' ? tmp : stt.Decode(header, 'utf8');
    map('defaultValue') = defaultValue == '' ? '' : stt.Decode(defaultValue, 'utf8');
    map('justify') = justify;
    map('type') = type;

    return map;
}

function OnInit(initData) {
    initData.name = 'ExifTool';
    initData.desc = 'Provide columns for tags read via exiftool.exe';
    initData.version = '2022-06-27';
    initData.url = 'https://resource.dopus.com/t/exiftool-custom-columns/38975';
    initData.default_enable = true;

    cmd.RunCommand('CreateFolder NAME="' + cacheFolder + '"');

    Log('exeExifTool: ' + exeExifTool + (fsu.Exists(exeExifTool) ? ' - OK. File exists' : ' - Error. File not found!'));
    Log('cacheFolder: ' + cacheFolder + (fsu.Exists(cacheFolder) ? ' - OK. Folder exists' : ' - Error. Folder not found!'));
}

function OnAddColumns(AddColData) {
    for (var e = new Enumerator(exifColumns); !e.atEnd(); e.moveNext()) {
        var columnItem = e.item();
        var col = AddColData.AddColumn();
        col.multicol = true;
        col.label = columnItem('label');
        col.header = columnItem('header');
        col.justify = columnItem('justify');
        col.name = columnItem('name');
        col.type = columnItem('type');
        col.method = 'OnColumn';
    }
}

function OnColumn(scriptColData) {
    var item = scriptColData.item;
    var tab = scriptColData.tab;

    if (item.is_dir) return;
    if (!ProcessFile(item.ext)) return;
    if (fsu.GetItem(item.path).InGroup('Archives')) return; // ExifTool can't read from archives (I think)

    var cacheFile = fsu.GetItem(cacheFolder + '\\' + String(item.realpath).replace(':', '') + '.txt');

    if (log) var startTime = DOpus.Create().Date();

    if (!fsu.Exists(cacheFile) || cacheFile.modify.Compare(item.modify) < 0) {
        Log('Enumerating ' + tab.files.count + ' files in "' + tab.path + '"...', startTime);

        var argFile = fsu.GetTempFile();
        var filesForExifTool = 0;
        for (var e = new Enumerator(tab.files); !e.atEnd(); e.moveNext()) {
            var tabItem = e.item();
            if (!ProcessFile(tabItem.ext)) continue;

            var cacheTabItem = fsu.GetItem(cacheFolder + '\\' + String(tabItem.realpath).replace(':', '') + '.txt');
            if (fsu.Exists(cacheTabItem) && cacheTabItem.modify.Compare(tabItem.modify) > 0) continue;

            argFile.Write('-short\n-duplicates\n-unknown\n-groupNames\n-tab\n-charset\nFileName=UTF8\n-textOut!\n' + cacheTabItem.path + '\\%f.%e.txt\n' + String(tabItem.realpath).replace(/\\$/, '') + '\n-execute\n');

            Log(tabItem, startTime);
            filesForExifTool++;
        }
        argFile.Close();

        Log('... Handing over ' + filesForExifTool + ' files to ExifTool...', startTime);
        var cmdLine = '"' + exeExifTool + '" -@ "' + argFile + '"';
        Log(cmdLine, startTime);
        wsh.Run(cmdLine, 0, true);

        Log('... done!', startTime);
    }

    if (!fsu.Exists(cacheFile)) {
        Log('*** Error: cache file could not be created! ***');
        Log('item:      ' + item);
        Log('cacheFile: ' + cacheFile);
        Log('');
        Log('cmdLine:');
        Log(cmdLine);
        Log('');
        return;
    }

    exifTags.clear();
    vecBlob.clear();

    var cf = cacheFile.Open();
    var cfBlob = cf.Read();
    var strBlob = stt.Decode(cfBlob, 'utf8');
    vecBlob.assign(strBlob.split('\r\n'));

    for (var e = new Enumerator(vecBlob); !e.atEnd(); e.moveNext()) {
        var line = e.item().split('\t');
        var group = line[0];
        var tag = line[1];
        var value = line[2];
        var key = group + '-' + tag;
        exifTags(key) = value;
    }

    cf.Close();

    for (var e = new Enumerator(exifColumns); !e.atEnd(); e.moveNext()) {
        var column = e.item();
        var key = column('group') + '-' + column('tag');
        var value = exifTags.exists(key) ? exifTags(key) : column('defaultValue');

        if (value != '') {
            if (column('type') == 'datetime' || column('type') == 'date' || column('type') == 'time') {
                value = DOpus.Create().Date(value.replace(/:/g, ''));
            } else if (column('type') == 'number') {
                value = Number(value.replace(/s/g, ''));
            } else {
                // value = 
            }
        }

        scriptColData.columns(column('name')).value = value;
    }
}

function ProcessFile(ext) {
    if (filterExt > 0 && specialExt.exists(ext)) return true;
    if (filterExt == 0) return true;
    if (filterExt < 0 && !specialExt.exists(ext)) return true;

    return false;
}

function Log(str, time) {
    if (!log) return;
    if (time) {
        var currTime = DOpus.Create().Date();
        var gap = (currTime + currTime.ms - time - time.ms);
        DOpus.Output(padTime(gap) + ' ' + str);
    } else {
        DOpus.Output(str);
    }
}

function padTime(milliseconds) {
    var str = ('000000' + String(milliseconds)).slice(-6);
    var tmp = str.substring(0, 3) + ':' + str.substring(3, 6);
    tmp = tmp.replace(/^00/, '  ');
    tmp = tmp.replace(/^0/, ' ');
    return tmp;
}