import 'package:freezed_annotation/freezed_annotation.dart';

part 'license_dto.freezed.dart';
part 'license_dto.g.dart';

/// 라이선스 전체 정보 DTO
@freezed
class LicenseDto with _$LicenseDto {
  const factory LicenseDto({
    required int id,
    @JsonKey(name: 'license_key') required String licenseKey,
    @JsonKey(name: 'product_name') String? productName,
    String? vendor,
    @JsonKey(name: 'license_type') String? licenseType,
    @JsonKey(name: 'user_count') int? userCount,
    @JsonKey(name: 'purchase_date') DateTime? purchaseDate,
    @JsonKey(name: 'expiry_date') DateTime? expiryDate,
    @JsonKey(name: 'purchase_price') double? purchasePrice,
    @JsonKey(name: 'company_id') int? companyId,
    @JsonKey(name: 'branch_id') int? branchId,
    @JsonKey(name: 'assigned_user_id') int? assignedUserId,
    String? remark,
    @JsonKey(name: 'is_active') required bool isActive,
    @JsonKey(name: 'created_at') required DateTime createdAt,
    @JsonKey(name: 'updated_at') required DateTime updatedAt,
    // 추가 필드 (조인된 데이터)
    @JsonKey(name: 'company_name') String? companyName,
    @JsonKey(name: 'branch_name') String? branchName,
    @JsonKey(name: 'assigned_user_name') String? assignedUserName,
  }) = _LicenseDto;

  factory LicenseDto.fromJson(Map<String, dynamic> json) => _$LicenseDtoFromJson(json);
}

/// 라이선스 목록 응답 DTO
@freezed
class LicenseListResponseDto with _$LicenseListResponseDto {
  const factory LicenseListResponseDto({
    required List<LicenseDto> items,
    required int total,
    required int page,
    @JsonKey(name: 'per_page') required int perPage,
    @JsonKey(name: 'total_pages') required int totalPages,
  }) = _LicenseListResponseDto;

  factory LicenseListResponseDto.fromJson(Map<String, dynamic> json) => 
      _$LicenseListResponseDtoFromJson(json);
}

/// 만료 예정 라이선스 DTO
@freezed
class ExpiringLicenseDto with _$ExpiringLicenseDto {
  const factory ExpiringLicenseDto({
    required int id,
    @JsonKey(name: 'license_key') required String licenseKey,
    @JsonKey(name: 'product_name') String? productName,
    @JsonKey(name: 'company_name') String? companyName,
    @JsonKey(name: 'expiry_date') required DateTime expiryDate,
    @JsonKey(name: 'days_until_expiry') required int daysUntilExpiry,
    @JsonKey(name: 'is_active') required bool isActive,
  }) = _ExpiringLicenseDto;

  factory ExpiringLicenseDto.fromJson(Map<String, dynamic> json) => 
      _$ExpiringLicenseDtoFromJson(json);
}

/// 만료 예정 라이선스 목록 응답 DTO
@freezed
class ExpiringLicenseListDto with _$ExpiringLicenseListDto {
  const factory ExpiringLicenseListDto({
    required List<ExpiringLicenseDto> items,
    required int total,
    required int page,
    @JsonKey(name: 'per_page') required int perPage,
    @JsonKey(name: 'total_pages') required int totalPages,
  }) = _ExpiringLicenseListDto;

  factory ExpiringLicenseListDto.fromJson(Map<String, dynamic> json) =>
      _$ExpiringLicenseListDtoFromJson(json);
}