XF2 SSO: XenForo 2 Single Sign On session cookie set up

UserLogin.php

<?php

namespace Datio\WeightixCli\Cli\Command\Misc;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

class UserLogin extends Command
{
    protected function configure()
    {
        $this
            ->setName('misc-user:login')
            ->setDescription('Create an authenticated session for a user')
            ->addOption(
                'user-id',
                null,
                InputOption::VALUE_REQUIRED,
                'User id of user'
            );
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $userId = $input->getOption('user-id');

        $errors = false;
        $missingArgs = [];
        if (!$userId) {
            array_push($missingArgs, 'user-id');
            $errors = true;
        }

        if ($errors) {
            $output->writeln(sprintf("<error>Required argument(s): %s.</error>", implode(', ', $missingArgs)));
            return 1;
        }

        /** @var \XF\Entity\User $user */
        $user = \XF::app()->finder('XF:User')->where('user_id', $userId)->with(['Profile'])->fetchOne();
        if (!$user) {
            $output->writeln("<error>User could not be found.</error>");
            return 1;
        }

        $class = \XF::app()->extendClass('XF\Session\Session');
        /** @var \XF\Session\Session $session */
        $session = new $class(\XF::app()->container('session.public.storage'), [
            'cookie' => 'session'
        ]);

        $session->start(\XF::app()->request());
        $session->changeUser($user);
        $cookieVal = $session->getSessionId();
        $session->save();

        $output->writeln(sprintf("xf_session: %s", $cookieVal));

        return 0;
    }
}