filter method

Future<List<T>> filter(String? query, List currentSelections, int limit)

Filters the list of all options based on a query - the list of current selections is also provided.

Implementation

Future<List<T>> filter(
    String? query, List currentSelections, int limit) async {
  final List<T> options = await this.listAllOptions(150);
  if (query.isNullOrBlank) return options;
  return FullTextSearch<T>(
    term: query!,
    items: options.where((t) => !currentSelections.contains(t)).toList(),
    isMatchAll: true,
    isStartsWith: false,
    limit: limit,
    tokenize: (value) {
      final KeyedOption<K, T> option = toOption(value)!;
      return [
        option.label,
        for (final _ in (option.subtitle ?? const []))
          if (_ != null) "$_",
        ...?option.extraTokens,
      ].whereNotBlank();
    },
  ).findResults();
}