search_notifier.dart

class SearchNotifier extends StateNotifier<SearchState> {
  SearchNotifier() : super(SearchState.empty());

  void mapEventsToState(SearchEvent event) {
    event.map(
      searchedTextChanged: (searchedTextChangedEvent) {
        final characterList = [...state.characterList];
        final searchedCharacterList = characterList
            .where((characterModel) => characterModel.characterName
                .toLowerCase()
                .contains(searchedTextChangedEvent.text.toLowerCase().trimLeft()))
            .toList();
  
        state = state.copyWith(characterList: searchedCharacterList);
      },
      updateListItems: (updateListItemsEvent) {
        state = state.copyWith(
          characterList: updateListItemsEvent.characterModelList,
        );
      },
    );
  }
}