<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\TextUI\Command;

use function file_get_contents;
use function sprintf;
use function version_compare;
use PHPUnit\Runner\Version;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class VersionCheckCommand implements Command
{
    public function execute(): Result
    {
        $latestVersion = file_get_contents('https://phar.phpunit.de/latest-version-of/phpunit');
        $isOutdated    = version_compare($latestVersion, Version::id(), '>');

        if ($isOutdated) {
            return Result::from(
                sprintf(
                    'You are not using the latest version of PHPUnit.' . PHP_EOL .
                    'The latest version is PHPUnit %s.' . PHP_EOL,
                    $latestVersion,
                ),
            );
        }

        return Result::from(
            'You are using the latest version of PHPUnit.' . PHP_EOL,
        );
    }
}