function OnInit(initData) {
    initData.name = 'CommandShowMulti';
    initData.version = '2022-05-18';
    initData.url = 'https://resource.dopus.com/t/custom-command-showmulti-launch-multiple-viewers/41266';
    initData.desc = 'Launch multiple viewers at once';
    initData.default_enable = true;
    initData.min_version = '12.0';
}

function OnAddCommands(addCmdData) {
    var cmd = addCmdData.AddCommand();
    cmd.name = 'ShowMulti';
    cmd.method = 'OnShowMulti';
    cmd.desc = 'ShowMulti';
    cmd.label = 'ShowMulti';
    cmd.template = 'MODE/K,DISPLAY/N';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'MenuBarMulti';
    cmd.method = 'OnMenuBarMulti';
    cmd.desc = 'Toggle Menu Bar in all open viewers';
    cmd.label = 'MenuBarMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'StatusBarMulti';
    cmd.method = 'OnStatusBarMulti';
    cmd.desc = 'Toggle Status Bar in all open viewers';
    cmd.label = 'StatusBarMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'ControlBarMulti';
    cmd.method = 'OnControlBarMulti';
    cmd.desc = 'Toggle Control Bar in all open viewers';
    cmd.label = 'ControlBarMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'FullScreenMulti';
    cmd.method = 'OnFullScreenMulti';
    cmd.desc = 'Set all viewers to Full Screen';
    cmd.label = 'FullScreenMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'OriginalSizeMulti';
    cmd.method = 'OnOriginalSizeMulti';
    cmd.desc = 'Set images in all viewers to original size';
    cmd.label = 'OriginalSizeMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'FitToPageMulti';
    cmd.method = 'OnFitToPageMulti';
    cmd.desc = 'Zoom images in all viewers to fit';
    cmd.label = 'FitToPageMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'NextImageMulti';
    cmd.method = 'OnNextImageMulti';
    cmd.desc = 'Jump forward by count of open viewers (Shift to jump by 1)';
    cmd.label = 'NextImageMulti';
    cmd.hide = false;
    cmd.icon = 'script';

    var cmd = addCmdData.AddCommand();
    cmd.name = 'PreviousImageMulti';
    cmd.method = 'OnPreviousImageMulti';
    cmd.desc = 'Jump backward by count of open viewers (Shift to jump by 1)';
    cmd.label = 'PreviousImageMulti';
    cmd.hide = false;
    cmd.icon = 'script';
}

function OnShowMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    var tab = scriptCmdData.func.sourcetab;
    var args = scriptCmdData.func.args;
    var si = DOpus.Create().SysInfo();

    cmd.deselect = false;

    if (tab.selected_files.count < 2) cmd.SetFiles(tab.files);

    var curDisp = si.MouseMonitor();
    var maxDisp = si.Monitors().count;

    var d = args.display;
    if (typeof d != 'number' || d < 0 || d >= maxDisp) d = curDisp; // if display is missing or out-of-range, use current monitor

    var targetDisp = si.WorkAreas(d);

    var posX = targetDisp.left;
    var posY = targetDisp.top;

    var imgW = targetDisp.width;
    var imgW2 = imgW / 2;
    var imgH = targetDisp.height;
    var imgH2 = imgH / 2;

    var m = args.got_arg.mode ? args.mode.toLowerCase() : ((imgW > imgH) ? 'vert' : 'horiz');

    cmd.Clear();

    cmd.AddLine('Close ALLVIEWERS');

    if (m == 'quad') {
        cmd.AddLine('Show POS=' + (posX + 0 * imgW2) + ',' + (posY + 0 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH2 + ' NOUSEEXISTING');
        cmd.AddLine('Show POS=' + (posX + 1 * imgW2) + ',' + (posY + 0 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH2 + ' NOUSEEXISTING');
        cmd.AddLine('Show POS=' + (posX + 0 * imgW2) + ',' + (posY + 1 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH2 + ' NOUSEEXISTING');
        cmd.AddLine('Show POS=' + (posX + 1 * imgW2) + ',' + (posY + 1 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH2 + ' NOUSEEXISTING');
    } else if (m == 'horiz') {
        cmd.AddLine('Show POS=' + (posX + 0 * imgW2) + ',' + (posY + 0 * imgH2) + ' SIZE=' + imgW + ',' + imgH2 + ' NOUSEEXISTING');
        cmd.AddLine('Show POS=' + (posX + 0 * imgW2) + ',' + (posY + 1 * imgH2) + ' SIZE=' + imgW + ',' + imgH2 + ' NOUSEEXISTING');
    } else {
        cmd.AddLine('Show POS=' + (posX + 0 * imgW2) + ',' + (posY + 0 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH + ' NOUSEEXISTING');
        cmd.AddLine('Show POS=' + (posX + 1 * imgW2) + ',' + (posY + 0 * imgH2) + ' SIZE=' + imgW2 + ',' + imgH + ' NOUSEEXISTING');
    }

    cmd.Run();

    var newVwrs = cmd.results.newviewers;
    for (var i = 1; i < newVwrs.count; i++) {
        newVwrs(i).Command('goto,+' + i);
    }
}

function OnMenuBarMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('toolbar');
    }
}

function OnStatusBarMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('statusbar');
    }
}

function OnControlBarMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('toolbar');
    }
}

function OnFullScreenMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('fullscreen');
    }
}

function OnOriginalSizeMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('zoom,reset');
    }
}

function OnFitToPageMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        e.item().Command('zoom,fit');
    }
}

function OnNextImageMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    var jump = scriptCmdData.func.qualifiers.indexOf('shift') < 0 ? DOpus.viewers.count : 1;

    cmd.ClearFiles();

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        var vwr = e.item();
        var n = vwr.index + jump;
        if (n >= vwr.files.count) n = n - vwr.files.count;
        vwr.Command('goto,' + n);
        cmd.AddFile(vwr.current);
    }

    cmd.RunCommand('Select NONE');
    cmd.RunCommand('Select FROMSCRIPT SETFOCUS');
    cmd.RunCommand('Select SHOWFOCUS');
}

function OnPreviousImageMulti(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    cmd.deselect = false;

    if (DOpus.viewers.count == 0) return;

    var jump = scriptCmdData.func.qualifiers.indexOf('shift') < 0 ? DOpus.viewers.count : 1;

    cmd.ClearFiles();

    for (var e = new Enumerator(DOpus.viewers); !e.atEnd(); e.moveNext()) {
        var vwr = e.item();
        var n = vwr.index - jump;
        if (n < 0) n = n + vwr.files.count;
        vwr.Command('goto,' + n);
        cmd.AddFile(vwr.current);
    }

    cmd.RunCommand('Select NONE');
    cmd.RunCommand('Select FROMSCRIPT SETFOCUS');
    cmd.RunCommand('Select SHOWFOCUS');
}