get_collection_statistics_usecase.dart

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import 'package:dartz/dartz.dart';
 
import '../../../../core/common/use_case/use_case.dart';
import '../../../../core/error/failures.dart';
import '../../data/models/collection_statistics_model.dart';
import '../repositories/dashboard_repository.dart';
 
class GetCollectionStatisticsParams {
  final int userId;
  final String period;
 
  GetCollectionStatisticsParams({
    required this.userId,
    required this.period,
  });
}
 
class GetCollectionStatisticsUseCase implements UseCase<CollectionStatisticsModel, GetCollectionStatisticsParams> {
  final DashboardRepository repository;
 
  GetCollectionStatisticsUseCase(this.repository);
 
  @override
  Future<Either<Failure, CollectionStatisticsModel>> call(GetCollectionStatisticsParams params) async {
    return await repository.getCollectionStatistics(
      userId: params.userId,
      period: params.period,
    );
  }
}