'use strict';

//https://github.com/sindresorhus/opn/blob/master/index.js

//Modified as this uses target as an argument

import * as childProcess from 'child_process';

// tslint:disable:no-any no-function-expression prefer-template

export function open(opts: any): Promise<childProcess.ChildProcess> {

// opts = objectAssign({wait: true}, opts);

if (!opts.hasOwnProperty('wait')) {

(<any>opts).wait = true;

}

let cmd;

let appArgs = [];

let args: string[] = [];

const cpOpts: any = {};

if (opts.cwd && typeof opts.cwd === 'string' && opts.cwd.length > 0) {

cpOpts.cwd = opts.cwd;

}

if (opts.env && Object.keys(opts.env).length > 0) {

cpOpts.env = opts.env;

}

if (Array.isArray(opts.app)) {

appArgs = opts.app.slice(1);

opts.app = opts.app[0];

}

if (process.platform === 'darwin') {

const sudoPrefix = opts.sudo === true ? 'sudo ' : '';

cmd = 'osascript';

args = [

'-e',

'tell application "terminal"',

'-e',

'activate',

'-e',

'do script "' + sudoPrefix + [opts.app].concat(appArgs).join(' ') + '"',

'-e',

'end tell'

];

} else if (process.platform === 'win32') {

cmd = 'cmd';

args.push('/c', 'start');

if (opts.wait) {

args.push('/wait');

}

if (opts.app) {

args.push(opts.app);

}

if (appArgs.length > 0) {

args = args.concat(appArgs);

}

} else {

cmd = 'gnome-terminal';

const sudoPrefix = opts.sudo === true ? 'sudo ' : '';

args = ['-x', 'sh', '-c', `"${sudoPrefix}${opts.app}" ${appArgs.join(' ')}`];

}

const cp = childProcess.spawn(cmd, args, cpOpts);

if (opts.wait) {

return new Promise(function(resolve, reject) {

cp.once('error', reject);

cp.once('close', function(code) {

if (code > 0) {

reject(new Error(`Exited with code ${code}`));

return;

}

resolve(cp);

});

});

}

cp.unref();

return Promise.resolve(cp);

}