import 'package:freezed_annotation/freezed_annotation.dart';

part 'zipcode_dto.freezed.dart';
part 'zipcode_dto.g.dart';

@freezed
class ZipcodeDto with _$ZipcodeDto {
  const ZipcodeDto._(); // Private constructor for getters
  
  const factory ZipcodeDto({
    required String zipcode,
    required String sido,
    required String gu,
    @JsonKey(name: 'etc') required String etc,
    @JsonKey(name: 'is_deleted') 
    @Default(false) bool isDeleted,
    @JsonKey(name: 'created_at')
    DateTime? createdAt,
    @JsonKey(name: 'updated_at')
    DateTime? updatedAt,
  }) = _ZipcodeDto;

  // isActive 계산 속성 (is_deleted의 반대)
  bool get isActive => !isDeleted;

  // 전체 주소 문자열 생성
  String get fullAddress => '$sido $gu $etc';

  // 축약된 주소 (시도 + 구)
  String get shortAddress => '$sido $gu';

  // 검색용 문자열 (모든 필드 결합)
  String get searchableText => '$zipcode $sido $gu $etc';

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

// API 응답 래퍼
@freezed
class ZipcodeListResponse with _$ZipcodeListResponse {
  const factory ZipcodeListResponse({
    @JsonKey(name: 'data')
    required List<ZipcodeDto> items,
    @JsonKey(name: 'total')
    @Default(0) int totalCount,
    @JsonKey(name: 'page')
    @Default(1) int currentPage,
    @JsonKey(name: 'total_pages')
    @Default(1) int totalPages,
    @JsonKey(name: 'page_size')
    int? pageSize,
  }) = _ZipcodeListResponse;

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

// Hierarchy API 응답 래퍼
@freezed
class HierarchyMeta with _$HierarchyMeta {
  const factory HierarchyMeta({
    required int total,
    String? sido,
    String? gu,
  }) = _HierarchyMeta;

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

@freezed
class HierarchyResponse with _$HierarchyResponse {
  const factory HierarchyResponse({
    @JsonKey(name: 'data') required List<String> data,
    @JsonKey(name: 'meta') required HierarchyMeta meta,
  }) = _HierarchyResponse;

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