getAllOffsetsValue static method

Map<String, int> getAllOffsetsValue(String sizes)

Get offsets values from string

Implementation

static Map<String, int> getAllOffsetsValue(String sizes) {
  final Map<String, int> subResult = {};
  final List<String> getPrefixList = sizes
      .toLowerCase()
      .trim()
      .split(' ')
      .where((String order) => order.trim().isNotEmpty)
      .toList();
  for (final String element in getPrefixList) {
    final List<String> splittedList = element.split('-');
    if (splittedList.length == 2) {
      if (splittedList.first == 'offset' &&
          int.tryParse(splittedList.last) != null) {
        if (int.parse(splittedList.last) <= 12) {
          subResult['sm'] = int.parse(splittedList.last);
        }
      }
    } else if (splittedList.length == 3) {
      if (splittedList.first == 'offset' &&
          int.tryParse(splittedList.last) != null) {
        if (int.parse(splittedList.last) <= 12) {
          subResult[splittedList.elementAt(1)] = int.parse(splittedList.last);
        }
      }
    }
  }
  final Map<String, int> result = {};
  for (int i = 0; i < prefixesReversedList.length; i++) {
    String prefix = prefixesReversedList.elementAt(i);
    int nullValue =
        i == 0 ? 0 : result[prefixesReversedList.elementAt(i - 1)]!;
    result[prefix] = subResult[prefix] ?? nullValue;
  }

  return result;
}