Filter items function

filter_items_function.dart

/// Depending on the set flag [USE_SIMILARITY]
/// whether or not search with string similarity is used
List<Item> filterItems(Packet2<List<Item>, String> itemsAndInputValue) {
  return itemsAndInputValue.value.where((Item item) {
    return item.profile.contains(itemsAndInputValue.value2) || (USE_SIMILARITY && isStringsSimilar(item.profile, itemsAndInputValue.value2));
  }).toList();
}

bool isStringsSimilar(String first, String second) {
  return max(StringSimilarity.compareTwoStrings(first, second), StringSimilarity.compareTwoStrings(second, first)) >= 0.3);
}