history_collections_bloc.dart

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import 'package:equatable/equatable.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
 
import '../../../../../core/common/entities/collection_entity.dart';
import '../../../../../core/error/failures.dart';
import '../../../../../core/services/service_locator.dart';
import '../../../domain/usecases/get_history_collections_usecase.dart';
 
part 'history_collections_event.dart';
part 'history_collections_state.dart';
 
class HistoryCollectionsBloc extends Bloc<HistoryCollectionsEvent, HistoryCollectionsState> {
 
  final GetHistoryCollectionsUsecase getHistoryCollectionsUsecase = sl<GetHistoryCollectionsUsecase>();
 
  HistoryCollectionsBloc(): super(HistoryCollectionsInitial()) {
    on<LoadHistoryCollectionsEvent>(_onLoadHistoryCollections);
    on<LoadHistoryCollectionsWithDateRangeEvent>(_onLoadHistoryCollectionsWithDateRange);
  }
 
  Future<void> _onLoadHistoryCollections(
    LoadHistoryCollectionsEvent event,
    Emitter<HistoryCollectionsState> emit,
  ) async {
    emit(HistoryCollectionsLoading());
    final result = await getHistoryCollectionsUsecase(
      GetHistoryCollectionsParams(
        userId: event.userId,
        period: event.period,
      ),
    );
    result.fold(
      (failure) => emit(HistoryCollectionsError(failure: failure)),
      (collections) => emit(HistoryCollectionsLoaded(collections: collections)),
    );
  }
 
  Future<void> _onLoadHistoryCollectionsWithDateRange(
    LoadHistoryCollectionsWithDateRangeEvent event,
    Emitter<HistoryCollectionsState> emit,
  ) async {
    emit(HistoryCollectionsLoading());
    final result = await getHistoryCollectionsUsecase(
      GetHistoryCollectionsParams(
        userId: event.userId,
        dateStart: event.dateStart,
        dateEnd: event.dateEnd,
      ),
    );
    result.fold(
      (failure) => emit(HistoryCollectionsError(failure: failure)),
      (collections) => emit(HistoryCollectionsLoaded(collections: collections)),
    );
  }
}