import 'package:dartz/dartz.dart';
import '../../../services/company_service.dart';
import '../../../models/company_model.dart';
import '../../../core/errors/failures.dart';
import '../base_usecase.dart';

/// 회사 목록 조회 파라미터
class GetCompaniesParams {
  final int page;
  final int perPage;
  final String? search;
  final bool? isActive;

  const GetCompaniesParams({
    this.page = 1,
    this.perPage = 20,
    this.search,
    this.isActive,
  });
}

/// 회사 목록 조회 UseCase
class GetCompaniesUseCase extends UseCase<List<Company>, GetCompaniesParams> {
  final CompanyService _companyService;

  GetCompaniesUseCase(this._companyService);

  @override
  Future<Either<Failure, List<Company>>> call(GetCompaniesParams params) async {
    try {
      final response = await _companyService.getCompanies(
        page: params.page,
        perPage: params.perPage,
        search: params.search,
        isActive: params.isActive,
      );
      
      // PaginatedResponse에서 items만 추출
      return Right(response.items);
    } on ServerFailure catch (e) {
      return Left(ServerFailure(
        message: e.message,
        originalError: e,
      ));
    } catch (e) {
      return Left(UnknownFailure(
        message: '회사 목록을 불러오는 중 오류가 발생했습니다.',
        originalError: e,
      ));
    }
  }
}