L10nSheet constructor

L10nSheet(Sheet sheet, List<List<String?>> data)

Implementation

factory L10nSheet(Sheet sheet, List<List<String?>> data) {
  final map = <String, DataRow>{};
  List<String>? headers;
  try {
    headers = data.firstOrNull?.map((e) => e!).toList();
  } catch (e) {
    throw _SheetHeaderFormatError('$sheet');
  }
  if (headers == null) {
    return const L10nSheet.empty();
  }
  if (headers case ['key', 'description', ...final List<String> languages]) {
    for (var i = 1; i < data.length; i++) {
      final row = data[i];
      final key = row.firstOrNull;
      if (key != null) {
        if (map[key] != null) {
          print(
            'warning: Key "$key" in sheet "$sheet" is duplicated, '
            'the latter one will be kept',
          );
        }
        map[key] = DataRow(
          source: sheet,
          description: row[1],
          data: {
            for (var j = 2; j < row.length; j++) headers[j]: row[j],
          },
        );
      } else {
        print(
          'warning: The key in row ${i + 1} of sheet "$sheet" is empty',
        );
      }
    }

    return L10nSheet.raw(map, languages);
  }
  throw _SheetHeaderFormatError('$sheet');
}