Bug: Simple solution for setting the StartMenu layout using C# and PowerShell

nodeBinding.js

var dotNetStartMenuSetter = edge.func({
    source: path.join(__dirname, "dotnet/StartMenuSetter.csx"),
    references: ["C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\WindowsPowerShell\\3.0\\System.Management.Automation.dll"]
});

gpii.windows.startMenuLayout.exportLayout = function () {
    var promise = fluid.promise();
    var result = dotNetStartMenuSetter("", true);

    if (result === undefined) {
        promise.reject({
            isError: true,
            message: "Undefined error"
        });
    } else if (result[0] === "Success") {
        promise.resolve();
    } else {
        promise.reject({
            isError: true,
            message: result[1]
        });
    }

    return promise;
};

StartMenuLayout.cs

/*!
 * GPII Windows 10 Start Menu Layout Setter.
 *
 * Copyright 2018 Raising the Floor - International
 *
 * Licensed under the New BSD license. You may not use this file except in
 * compliance with this License.
 *
 * The research leading to these results has received funding from the European Union's
 * Seventh Framework Programme (FP7/2007-2013)
 * under grant agreement no. 289016.
 *
 * You may obtain a copy of the License at
 * https://github.com/GPII/universal/blob/master/LICENSE.txt
 */

using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Collections;
using System.Collections.ObjectModel;
using System.Threading;
using System.Threading.Tasks;
using System.Management.Automation;
using System.Management.Automation.Runspaces;


public class Startup {
    public async Task<object> Invoke(dynamic input) {
        ArrayList result = new ArrayList();

        try {
            String dataPath = Path.Combine(Environment.GetEnvironmentVariable("LOCALAPPDATA"), "GPII\\menuLayouts\\current_layout.xml");
            String _script =
                @"$VerbosePreference = ""continue""
                  $ErrorActionPreference = ""Stop""

                  $CurrentLayout = '{0}'

                  function ExportLayout {{
                      Try {{
                          Export-StartLayout -Path $CurrentLayout -ErrorAction Stop
                          $error = ""Success""
                          $msg = """"
                      }} Catch {{
                          $error = ""Error""
                          $msg = $_.Exception.Message
                      }}
                      $error
                      $msg
                  }}

                  $return = ExportLayout
                  $return[0]
                  $return[1]
                ";

            String script = string.Format(_script, dataPath);

            using (PowerShell PowerShellInstance = PowerShell.Create()) {
                PowerShellInstance.AddScript(script, false);
                Collection<PSObject> psOutput = PowerShellInstance.Invoke();

                foreach (var psObj in psOutput) {
                    result.Add(psObj.ToString());
                }
            }
        } catch (Exception ex) {
            result.Add("Error");
            result.Add(ex.Message);
        }

        return result.ToArray();
    }

    static void Main(string[] args) {
        doStuff().GetAwaiter().GetResult();
    }

    static async Task doStuff() {
        Startup st = new Startup();

        var output = (Array) await st.Invoke("");
        foreach (var obj in output) {
            System.Console.WriteLine(obj);
        }

        output = (Array) await st.Invoke("");
        foreach (var obj in output) {
            System.Console.WriteLine(obj);
        }
    }

}