function OnInit(initData) {
    initData.name = 'MergeFolders';
    initData.version = '2024-02-23';
    initData.url = 'https://resource.dopus.com/t/merge-folders-and-collections/41476';
    initData.desc = 'MergeFolders';
    initData.default_enable = true;
    initData.min_version = '12.0';
}

function OnAddCommands(addCmdData) {
    var cmd = addCmdData.AddCommand();
    cmd.name = 'MergeFolders';
    cmd.method = 'OnMergeFolders';
    cmd.desc = 'Merge Folders and Collections';
    cmd.label = 'MergeFolders';
    cmd.hide = false;
    cmd.icon = 'script';
}

function OnMergeFolders(scriptCmdData) {
    var cmd = scriptCmdData.func.command;
    var tab = scriptCmdData.func.sourcetab;
    var dlg = scriptCmdData.func.Dlg();
    var fsu = DOpus.FSUtil();

    cmd.deselect = false;

    if (tab.selected_dirs.count < 2) {
        dlg.Request('Please select at least two folders!', 'OK');
        return;
    }

    var dirItems = DOpus.Create().Vector();
    var dirNames = DOpus.Create().Vector();
    for (var e = new Enumerator(tab.selected_dirs); !e.atEnd(); e.moveNext()) {
        var item = e.item();
        dirItems.push_back(item);
        dirNames.push_back(item.name);
    }

    dlg.title = 'Merge Folders';
    dlg.message = 'Please select the destination folder:';
    dlg.buttons = 'OK|&Switch|Cancel';
    dlg.selection = 0;
    var showPath = false;
    do {
        dlg.choices = showPath ? dirItems : dirNames;
        var userChoice = dlg.Show();
        if (userChoice == 2) showPath = !showPath;
    } while (userChoice == 2);

    if (userChoice != 1) return;

    var s = dlg.selection;
    var dstPath = dirItems(s).path;
    var dstFolder = dirItems(s).name;
    var dstColl = dirItems(s);
    dirItems.erase(s);

    if (String(dstPath).substring(0, 5) == 'coll:') {
        for (var e = new Enumerator(dirItems); !e.atEnd(); e.moveNext()) {
            var coll = e.item();
            cmd.SetFiles(fsu.ReadDir(coll).Next(-1));
            cmd.RunCommand('Copy' +
                ' TO="' + dstColl + '"' +
                ' COPYTOCOLL=member');
        }
        cmd.SetFiles(dirItems);
        cmd.RunCommand('Delete QUIET');
    } else {
        cmd.SetFiles(dirItems);
        cmd.RunCommand('Copy' +
            ' MOVE' +
            ' AS="' + dstFolder + '"' +
            ' TO="' + dstPath + '"' +
            ' WHENEXISTS=rename,merge');
        cmd.RunCommand('Go' +
            ' PATH="' + dstPath + '\\' + dstFolder + '"' +
            ' OPENCONTAINER');
    }
}