// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

'use strict';

import * as path from 'path';

import { ConfigurationTarget } from 'vscode';

import { IConfigurationService, ICurrentProcess } from '../types';

export function getCommandPromptLocation(currentProcess: ICurrentProcess) {

// https://github.com/Microsoft/vscode/blob/master/src/vs/workbench/parts/terminal/electron-browser/terminalService.ts#L218

// Determine the correct System32 path. We want to point to Sysnative

// when the 32-bit version of VS Code is running on a 64-bit machine.

// The reason for this is because PowerShell's important PSReadline

// module doesn't work if this is not the case. See #27915.

const is32ProcessOn64Windows = currentProcess.env.hasOwnProperty('PROCESSOR_ARCHITEW6432');

const system32Path = path.join(currentProcess.env.windir!, is32ProcessOn64Windows ? 'Sysnative' : 'System32');

return path.join(system32Path, 'cmd.exe');

}

export async function useCommandPromptAsDefaultShell(currentProcess: ICurrentProcess, configService: IConfigurationService) {

const cmdPromptLocation = getCommandPromptLocation(currentProcess);

await configService.updateSectionSetting('terminal', 'integrated.shell.windows', cmdPromptLocation, undefined, ConfigurationTarget.Global);

}