<?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 copy;
use function file_put_contents;
use PHPUnit\TextUI\XmlConfiguration\Migrator;
use Throwable;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class MigrateConfigurationCommand implements Command
{
    private readonly string $filename;

    public function __construct(string $filename)
    {
        $this->filename = $filename;
    }

    public function execute(): Result
    {
        copy($this->filename, $this->filename . '.bak');

        $buffer        = 'Created backup:         ' . $this->filename . '.bak' . PHP_EOL;
        $shellExitCode = Result::SUCCESS;

        try {
            file_put_contents(
                $this->filename,
                (new Migrator)->migrate($this->filename)
            );

            $buffer .= 'Migrated configuration: ' . $this->filename . PHP_EOL;
        } catch (Throwable $t) {
            $buffer .= 'Migration failed: ' . $t->getMessage() . PHP_EOL;

            $shellExitCode = Result::FAILURE;
        }

        return Result::from($buffer, $shellExitCode);
    }
}
