// Paths relative to the WebDAV root, as used by `CacheableFile.path`: no
// leading slash, folders end with '/', the root folder is ''.

final RegExp _edgeSlashes = RegExp(r'^/+|/+$');

List<String> webdavSegmentsOf(String path) {
  final stripped = path.replaceAll(_edgeSlashes, '');
  return stripped.isEmpty ? [] : stripped.split('/');
}

List<String> webdavParentSegmentsOf(String path) {
  final segments = webdavSegmentsOf(path);
  if (segments.isNotEmpty) segments.removeLast();
  return segments;
}

String webdavFolderPath(List<String> segments) =>
    segments.isEmpty ? '' : '${segments.join('/')}/';

String webdavJoin(String folder, String name, {required bool isDirectory}) =>
    isDirectory ? '$folder$name/' : '$folder$name';

/// Folder key used by `ListFilesCache` and `FilesBloc`: no leading or
/// trailing slash, root is '/'.
String listFilesCacheKey(List<String> segments) =>
    segments.isEmpty ? '/' : segments.join('/');