import 'package:redux/redux.dart';
import 'package:built_collection/built_collection.dart';
import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
import 'package:invoiceninja_flutter/data/models/models.dart';
import 'package:invoiceninja_flutter/redux/company/company_actions.dart';
import 'package:invoiceninja_flutter/redux/ui/entity_ui_state.dart';
import 'package:invoiceninja_flutter/redux/stub/stub_actions.dart';
import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';
import 'package:invoiceninja_flutter/redux/stub/stub_state.dart';

EntityUIState stubUIReducer(StubUIState state, dynamic action) {
  return state.rebuild((b) => b
    ..listUIState.replace(stubListReducer(state.listUIState, action))
    ..editing.replace(editingReducer(state.editing, action))
    ..selectedId = selectedIdReducer(state.selectedId, action)
    ..forceSelected = forceSelectedReducer(state.forceSelected, action)
     ..tabIndex = tabIndexReducer(state.tabIndex, action)
    );
}

final forceSelectedReducer = combineReducers<bool>([
  TypedReducer<bool, ViewStub>((completer, action) => true),
  TypedReducer<bool, ViewStubList>((completer, action) => false),
  TypedReducer<bool, FilterStubsByState>((completer, action) => false),
  TypedReducer<bool, FilterStubs>((completer, action) => false),
  TypedReducer<bool, FilterStubsByCustom1>((completer, action) => false),
  TypedReducer<bool, FilterStubsByCustom2>((completer, action) => false),
  TypedReducer<bool, FilterStubsByCustom3>((completer, action) => false),
  TypedReducer<bool, FilterStubsByCustom4>((completer, action) => false),
]);


final tabIndexReducer = combineReducers<int>([
  TypedReducer<int, UpdateStubTab>((completer, action) {
    return action.tabIndex;
  }),
  TypedReducer<int, PreviewEntity>((completer, action) {
    return 0;
  }),
]);

Reducer<String> selectedIdReducer = combineReducers([
  TypedReducer<String, ArchiveStubsSuccess>((completer, action) => ''),
  TypedReducer<String, DeleteStubsSuccess>((completer, action) => ''),
  TypedReducer<String, PreviewEntity>((selectedId, action) =>
      action.entityType == EntityType.stub
          ? action.entityId
          : selectedId),
  TypedReducer<String, ViewStub>(
      (String selectedId, dynamic action) => action.stubId),
  TypedReducer<String, AddStubSuccess>(
      (String selectedId, dynamic action) => action.stub.id),
    TypedReducer<String, SelectCompany>((selectedId, action) => action.clearSelection ? '' : selectedId),
  TypedReducer<String, ClearEntityFilter>((selectedId, action) => ''),
  TypedReducer<String, SortStubs>((selectedId, action) => ''),
  TypedReducer<String, FilterStubs>((selectedId, action) => ''),
  TypedReducer<String, FilterStubsByState>((selectedId, action) => ''),
  TypedReducer<String, FilterStubsByCustom1>((selectedId, action) => ''),
  TypedReducer<String, FilterStubsByCustom2>((selectedId, action) => ''),
  TypedReducer<String, FilterStubsByCustom3>((selectedId, action) => ''),
  TypedReducer<String, FilterStubsByCustom4>((selectedId, action) => ''),
  TypedReducer<String, FilterByEntity>((selectedId, action) =>
        action
                  .clearSelection
              ? ''
              : action.entityType == EntityType.stub ? action.entityId : selectedId),

]);

final editingReducer = combineReducers<StubEntity>([
  TypedReducer<StubEntity, SaveStubSuccess>(_updateEditing),
  TypedReducer<StubEntity, AddStubSuccess>(_updateEditing),
  TypedReducer<StubEntity, RestoreStubsSuccess>((stubs, action) {
                                                   return action.stubs[0];
                                                 }),
  TypedReducer<StubEntity, ArchiveStubsSuccess>((stubs, action) {
                                                  return action.stubs[0];
                                                }),
  TypedReducer<StubEntity, DeleteStubsSuccess>((stubs, action) {
                                                 return action.stubs[0];
                                               }),
  TypedReducer<StubEntity, EditStub>(_updateEditing),
  TypedReducer<StubEntity, UpdateStub>((stub, action) {
   return action.stub.rebuild((b) => b..isChanged = true);
 }),
  TypedReducer<StubEntity, DiscardChanges>(_clearEditing),
]);

StubEntity _clearEditing(StubEntity stub, dynamic action) {
  return StubEntity();
}

StubEntity _updateEditing(StubEntity stub, dynamic action) {
  return action.stub;
}


final stubListReducer = combineReducers<ListUIState>([
  TypedReducer<ListUIState, SortStubs>(_sortStubs),
  TypedReducer<ListUIState, FilterStubsByState>(_filterStubsByState),
  TypedReducer<ListUIState, FilterStubs>(_filterStubs),
  TypedReducer<ListUIState, FilterStubsByCustom1>(_filterStubsByCustom1),
  TypedReducer<ListUIState, FilterStubsByCustom2>(_filterStubsByCustom2),
  TypedReducer<ListUIState, StartStubMultiselect>(_startListMultiselect),
  TypedReducer<ListUIState, AddToStubMultiselect>(_addToListMultiselect),
  TypedReducer<ListUIState, RemoveFromStubMultiselect>(
      _removeFromListMultiselect),
  TypedReducer<ListUIState, ClearStubMultiselect>(_clearListMultiselect),
  TypedReducer<ListUIState, ViewStubList>(_viewStubList),
  TypedReducer<ListUIState, FilterByEntity>(
    (state, action) => state.rebuild((b) => b
      ..filter = null
      ..filterClearedAt = DateTime.now().millisecondsSinceEpoch)),
]);

ListUIState _viewStubList(
    ListUIState stubListState, ViewStubList action) {
  return stubListState.rebuild((b) => b
    ..selectedIds = null
    ..filter = null
    ..filterClearedAt = DateTime.now().millisecondsSinceEpoch);
}

ListUIState _filterStubsByCustom1(
    ListUIState stubListState, FilterStubsByCustom1 action) {
  if (stubListState.custom1Filters.contains(action.value)) {
    return stubListState
        .rebuild((b) => b..custom1Filters.remove(action.value));
  } else {
    return stubListState.rebuild((b) => b..custom1Filters.add(action.value));
  }
}

ListUIState _filterStubsByCustom2(
    ListUIState stubListState, FilterStubsByCustom2 action) {
  if (stubListState.custom2Filters.contains(action.value)) {
    return stubListState
        .rebuild((b) => b..custom2Filters.remove(action.value));
  } else {
    return stubListState.rebuild((b) => b..custom2Filters.add(action.value));
  }
}

ListUIState _filterStubsByState(
    ListUIState stubListState, FilterStubsByState action) {
  if (stubListState.stateFilters.contains(action.state)) {
    return stubListState.rebuild((b) => b..stateFilters.remove(action.state));
  } else {
    return stubListState.rebuild((b) => b..stateFilters.add(action.state));
  }
}

ListUIState _filterStubs(ListUIState stubListState, FilterStubs action) {
  return stubListState.rebuild((b) => b..filter = action.filter
  ..filterClearedAt = action.filter == null
       ? DateTime.now().millisecondsSinceEpoch
       : stubListState.filterClearedAt);
}

ListUIState _sortStubs(ListUIState stubListState, SortStubs action) {
  return stubListState.rebuild((b) => b
    ..sortAscending = b.sortField != action.field || !b.sortAscending
    ..sortField = action.field);
}

ListUIState _startListMultiselect(
    ListUIState productListState, StartStubMultiselect action) {
  return productListState.rebuild((b) => b..selectedIds = ListBuilder());
}

ListUIState _addToListMultiselect(
    ListUIState productListState, AddToStubMultiselect action) {
  return productListState
      .rebuild((b) => b..selectedIds.add(action.entity.id));
}

ListUIState _removeFromListMultiselect(
    ListUIState productListState, RemoveFromStubMultiselect action) {
  return productListState
      .rebuild((b) => b..selectedIds.remove(action.entity.id));
}

ListUIState _clearListMultiselect(
    ListUIState productListState, ClearStubMultiselect action) {
  return productListState.rebuild((b) => b..selectedIds = null);
}

final stubsReducer = combineReducers<StubState>([
  TypedReducer<StubState, SaveStubSuccess>(_updateStub),
  TypedReducer<StubState, AddStubSuccess>(_addStub),
  TypedReducer<StubState, LoadStubsSuccess>(_setLoadedStubs),
  TypedReducer<StubState, LoadStubSuccess>(_setLoadedStub),
  TypedReducer<StubState, LoadCompanySuccess>(_setLoadedCompany),
  TypedReducer<StubState, ArchiveStubsSuccess>(_archiveStubSuccess),
  TypedReducer<StubState, DeleteStubsSuccess>(_deleteStubSuccess),
  TypedReducer<StubState, RestoreStubsSuccess>(_restoreStubSuccess),
]);

StubState _archiveStubSuccess(
    StubState stubState, ArchiveStubsSuccess action) {
  return stubState.rebuild((b) {
    for (final stub in action.stubs) {
      b.map[stub.id] = stub;
    }
  });
}

StubState _deleteStubSuccess(
    StubState stubState, DeleteStubsSuccess action) {
  return stubState.rebuild((b) {
    for (final stub in action.stubs) {
      b.map[stub.id] = stub;
    }
  });
}

StubState _restoreStubSuccess(
    StubState stubState, RestoreStubsSuccess action) {
  return stubState.rebuild((b) {
    for (final stub in action.stubs) {
      b.map[stub.id] = stub;
    }
  });
}

StubState _addStub(StubState stubState, AddStubSuccess action) {
  return stubState.rebuild((b) => b
    ..map[action.stub.id] = action.stub
    ..list.add(action.stub.id));
}

StubState _updateStub(StubState stubState, SaveStubSuccess action) {
  return stubState.rebuild((b) => b
    ..map[action.stub.id] = action.stub);
}

StubState _setLoadedStub(
    StubState stubState, LoadStubSuccess action) {
  return stubState.rebuild((b) => b
    ..map[action.stub.id] = action.stub);
}

StubState _setLoadedStubs(
        StubState stubState, LoadStubsSuccess action) =>
    stubState.loadStubs(action.stubs);

StubState _setLoadedCompany(
        StubState stubState, LoadCompanySuccess action) {
 final company = action.userCompany.company;
 return stubState.loadStubs(company.stubs);
}