import 'package:memoize/memoize.dart';
import 'package:built_collection/built_collection.dart';
import 'package:invoiceninja_flutter/data/models/models.dart';
import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';

var memoizedDropdownStubList = memo2(
    (BuiltMap<int, StubEntity> stubMap, BuiltList<int> stubList) =>
        dropdownStubsSelector(stubMap, stubList));

List<int> dropdownStubsSelector(
    BuiltMap<int, StubEntity> stubMap, BuiltList<int> stubList) {
  final list =
      stubList.where((stubId) => stubMap[stubId].isActive).toList();

  list.sort((stubAId, stubBId) {
    final stubA = stubMap[stubAId];
    final stubB = stubMap[stubBId];
    return stubA.compareTo(stubB, StubFields.name, true);
  });

  return list;
}

var memoizedFilteredStubList = memo3((BuiltMap<int, StubEntity> stubMap,
        BuiltList<int> stubList, ListUIState stubListState) =>
    filteredStubsSelector(stubMap, stubList, stubListState));

List<int> filteredStubsSelector(BuiltMap<int, StubEntity> stubMap,
    BuiltList<int> stubList, ListUIState stubListState) {
  final list = stubList.where((stubId) {
    final stub = stubMap[stubId];
    if (!stub.matchesStates(stubListState.stateFilters)) {
      return false;
    }
    if (stubListState.custom1Filters.isNotEmpty &&
        !stubListState.custom1Filters.contains(stub.customValue1)) {
      return false;
    }
    if (stubListState.custom2Filters.isNotEmpty &&
        !stubListState.custom2Filters.contains(stub.customValue2)) {
      return false;
    }
    if (stubListState.filterClientId != null &&
        stub.clientId != stubListState.filterClientId) {
      return false;
    }
    return stub.matchesFilter(stubListState.filter);
  }).toList();

  list.sort((stubAId, stubBId) {
    final stubA = stubMap[stubAId];
    final stubB = stubMap[stubBId];
    return stubA.compareTo(
        stubB, stubListState.sortField, stubListState.sortAscending);
  });

  return list;
}