<?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\XmlConfiguration;

use function assert;
use DOMDocument;
use DOMElement;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class MoveAttributesFromRootToCoverage implements Migration
{
    /**
     * @throws MigrationException
     */
    public function migrate(DOMDocument $document): void
    {
        $map = [
            'disableCodeCoverageIgnore'                 => 'disableCodeCoverageIgnore',
            'ignoreDeprecatedCodeUnitsFromCodeCoverage' => 'ignoreDeprecatedCodeUnits',
        ];

        $root = $document->documentElement;

        assert($root instanceof DOMElement);

        $coverage = $document->getElementsByTagName('coverage')->item(0);

        if (!$coverage instanceof DOMElement) {
            throw new MigrationException('Unexpected state - No coverage element');
        }

        foreach ($map as $old => $new) {
            if (!$root->hasAttribute($old)) {
                continue;
            }

            $coverage->setAttribute($new, $root->getAttribute($old));
            $root->removeAttribute($old);
        }
    }
}
