refactorAndroidPackage function

void refactorAndroidPackage(RenameConfig config)

Refactors the Android package structure for Kotlin source files.

This function updates the package declarations in all .kt files under android/app/src/main/kotlin to match the new config.androidId, and moves the files to the corresponding directory structure. It also cleans up empty directories left behind.

config - The configuration containing the new Android ID.

Implementation

void refactorAndroidPackage(RenameConfig config) {
  final kotlinRoot = Directory(
    p.join('android', 'app', 'src', 'main', 'kotlin'),
  );

  if (!kotlinRoot.existsSync()) {
    Logger.warn('No Kotlin source directory found');
    return;
  }

  final newPackage = config.androidId;
  final newPath = p.joinAll(newPackage.split('.'));

  final ktFiles = kotlinRoot
      .listSync(recursive: true)
      .whereType<File>()
      .where((f) => f.path.endsWith('.kt'))
      .toList();

  for (final file in ktFiles) {
    final content = file.readAsStringSync();

    final updated = content.replaceFirst(
      RegExp(r'^package\s+[\w.]+', multiLine: true),
      'package $newPackage',
    );

    final newFile = File(
      p.join(kotlinRoot.path, newPath, p.basename(file.path)),
    );

    newFile.parent.createSync(recursive: true);
    newFile.writeAsStringSync(updated);

    if (file.path != newFile.path) {
      file.deleteSync();
    }
  }

  _cleanupEmptyDirs(kotlinRoot);
  Logger.success('Android Kotlin package path refactored');
}