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superport/lib/core/services/lookups_service.dart

358 lines
11 KiB
Dart

import 'dart:async' show unawaited, StreamController;
import 'package:dartz/dartz.dart';
import 'package:injectable/injectable.dart';
import 'package:superport/core/errors/failures.dart';
import 'package:superport/core/utils/debug_logger.dart';
import 'package:superport/data/datasources/remote/lookup_remote_datasource.dart';
import 'package:superport/data/models/lookups/lookup_data.dart';
/// 전역 Lookups 캐싱 서비스 (Singleton 패턴)
@LazySingleton()
class LookupsService {
final LookupRemoteDataSource _dataSource;
// 캐시된 데이터
LookupData? _cachedData;
DateTime? _lastUpdated;
bool _isInitialized = false;
bool _isLoading = false;
// 캐시 만료 시간 (기본: 30분)
static const Duration _cacheExpiry = Duration(minutes: 30);
// 초기화 완료 스트림
final StreamController<bool> _initializationController = StreamController<bool>.broadcast();
LookupsService(this._dataSource);
/// 초기화 상태 스트림
Stream<bool> get initializationStream => _initializationController.stream;
/// 초기화 여부
bool get isInitialized => _isInitialized;
/// 로딩 상태
bool get isLoading => _isLoading;
/// 캐시 만료 여부
bool get _isCacheExpired {
if (_lastUpdated == null) return true;
return DateTime.now().difference(_lastUpdated!) > _cacheExpiry;
}
/// 서비스 초기화 (앱 시작 시 호출)
Future<Either<Failure, bool>> initialize() async {
if (_isInitialized && !_isCacheExpired) {
DebugLogger.log('Lookups 서비스가 이미 초기화되어 있습니다', tag: 'LOOKUPS');
return const Right(true);
}
if (_isLoading) {
DebugLogger.log('Lookups 초기화가 이미 진행 중입니다', tag: 'LOOKUPS');
return const Left(ServerFailure(message: '초기화가 이미 진행 중입니다'));
}
_isLoading = true;
DebugLogger.log('Lookups 서비스 초기화 시작', tag: 'LOOKUPS');
try {
final result = await _dataSource.getAllLookups();
return result.fold(
(failure) {
_isLoading = false;
_isInitialized = false;
_initializationController.add(false);
DebugLogger.logError('Lookups 초기화 실패', error: failure.message);
return Left(failure);
},
(data) {
_cachedData = data;
_lastUpdated = DateTime.now();
_isInitialized = true;
_isLoading = false;
_initializationController.add(true);
DebugLogger.log('Lookups 서비스 초기화 완료', tag: 'LOOKUPS', data: {
'manufacturers': data.manufacturers.length,
'equipment_names': data.equipmentNames.length,
'equipment_categories': data.equipmentCategories.length,
'equipment_statuses': data.equipmentStatuses.length,
});
return const Right(true);
},
);
} catch (e) {
_isLoading = false;
_isInitialized = false;
_initializationController.add(false);
DebugLogger.logError('Lookups 초기화 예외', error: e);
return Left(ServerFailure(message: 'Lookups 초기화 중 예외 발생: $e'));
}
}
/// 캐시 새로고침
Future<Either<Failure, bool>> refresh() async {
_isInitialized = false;
_cachedData = null;
_lastUpdated = null;
return await initialize();
}
/// 전체 Lookups 데이터 조회
Either<Failure, LookupData> getAllLookups() {
if (!_isInitialized || _cachedData == null) {
return const Left(ServerFailure(message: 'Lookups 서비스가 초기화되지 않았습니다'));
}
if (_isCacheExpired) {
// 백그라운드에서 캐시 갱신
unawaited(refresh());
DebugLogger.log('Lookups 캐시가 만료되어 백그라운드 갱신을 시작합니다', tag: 'LOOKUPS');
}
return Right(_cachedData!);
}
/// 제조사 목록 조회
Either<Failure, List<LookupItem>> getManufacturers() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.manufacturers),
);
}
/// 장비명 목록 조회
Either<Failure, List<EquipmentNameItem>> getEquipmentNames() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.equipmentNames),
);
}
/// 장비 카테고리 조합 목록 조회
Either<Failure, List<CategoryCombinationItem>> getEquipmentCategories() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.equipmentCategories),
);
}
/// 회사 목록 조회
Either<Failure, List<LookupItem>> getCompanies() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.companies),
);
}
/// 창고 목록 조회
Either<Failure, List<LookupItem>> getWarehouses() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.warehouses),
);
}
/// 장비 상태 목록 조회
Either<Failure, List<StatusItem>> getEquipmentStatuses() {
return getAllLookups().fold(
(failure) => Left(failure),
(data) => Right(data.equipmentStatuses),
);
}
/// 특정 제조사 정보 조회
Either<Failure, LookupItem?> getManufacturerById(int id) {
return getManufacturers().fold(
(failure) => Left(failure),
(manufacturers) {
try {
final manufacturer = manufacturers.firstWhere((item) => item.id == id);
return Right(manufacturer);
} catch (e) {
return const Right(null);
}
},
);
}
/// 특정 장비 상태 정보 조회
Either<Failure, StatusItem?> getEquipmentStatusById(String id) {
return getEquipmentStatuses().fold(
(failure) => Left(failure),
(statuses) {
try {
final status = statuses.firstWhere((item) => item.id == id);
return Right(status);
} catch (e) {
return const Right(null);
}
},
);
}
/// Equipment 폼용 매번 API 호출 메서드 (캐싱 없이)
Future<Either<Failure, LookupData>> getLookupDataForEquipmentForm() async {
DebugLogger.log('Equipment 폼용 Lookups 데이터 API 호출', tag: 'LOOKUPS');
return await _dataSource.getAllLookups();
}
/// 대분류 목록 추출 (Equipment 폼용)
Future<Either<Failure, List<String>>> getCategory1List() async {
final result = await getLookupDataForEquipmentForm();
return result.fold(
(failure) => Left(failure),
(data) {
final category1List = data.equipmentCategories
.map((item) => item.category1)
.toSet()
.toList()
..sort();
return Right(category1List);
},
);
}
/// 중분류 목록 추출 (Equipment 폼용)
Future<Either<Failure, List<String>>> getCategory2List(String category1) async {
final result = await getLookupDataForEquipmentForm();
return result.fold(
(failure) => Left(failure),
(data) {
final category2List = data.equipmentCategories
.where((item) => item.category1 == category1)
.map((item) => item.category2)
.toSet()
.toList()
..sort();
return Right(category2List);
},
);
}
/// 소분류 목록 추출 (Equipment 폼용)
Future<Either<Failure, List<String>>> getCategory3List(String category1, String category2) async {
final result = await getLookupDataForEquipmentForm();
return result.fold(
(failure) => Left(failure),
(data) {
final category3List = data.equipmentCategories
.where((item) => item.category1 == category1 && item.category2 == category2)
.map((item) => item.category3)
.toSet()
.toList()
..sort();
return Right(category3List);
},
);
}
/// 캐시 통계 정보
Map<String, dynamic> getCacheStats() {
return {
'initialized': _isInitialized,
'loading': _isLoading,
'last_updated': _lastUpdated?.toIso8601String(),
'cache_expired': _isCacheExpired,
'data_available': _cachedData != null,
'manufacturers_count': _cachedData?.manufacturers.length ?? 0,
'equipment_names_count': _cachedData?.equipmentNames.length ?? 0,
'equipment_categories_count': _cachedData?.equipmentCategories.length ?? 0,
'equipment_statuses_count': _cachedData?.equipmentStatuses.length ?? 0,
'companies_count': _cachedData?.companies.length ?? 0,
'warehouses_count': _cachedData?.warehouses.length ?? 0,
};
}
/// 메모리 정리
void dispose() {
_initializationController.close();
_cachedData = null;
_lastUpdated = null;
_isInitialized = false;
_isLoading = false;
}
}
/// LookupsService 편의 확장 메서드
extension LookupsServiceExtensions on LookupsService {
/// 드롭다운용 제조사 리스트 (id, name 맵)
Either<Failure, Map<int, String>> getManufacturerDropdownItems() {
return getManufacturers().fold(
(failure) => Left(failure),
(manufacturers) {
final Map<int, String> items = {};
for (int i = 0; i < manufacturers.length; i++) {
final manufacturer = manufacturers[i];
final id = manufacturer.id ?? (i + 1); // id가 null이면 인덱스 기반 ID 사용
items[id] = manufacturer.name;
}
return Right(items);
},
);
}
/// 드롭다운용 장비 상태 리스트 (id, name 맵)
Either<Failure, Map<String, String>> getEquipmentStatusDropdownItems() {
return getEquipmentStatuses().fold(
(failure) => Left(failure),
(statuses) {
final Map<String, String> items = {};
for (final status in statuses) {
items[status.id] = status.name;
}
return Right(items);
},
);
}
/// Equipment 폼용 드롭다운 리스트 생성 (매번 API 호출)
Future<Either<Failure, Map<String, dynamic>>> getEquipmentFormDropdownData() async {
final result = await getLookupDataForEquipmentForm();
return result.fold(
(failure) => Left(failure),
(data) {
// 제조사 리스트 (드롭다운 + 직접입력용)
final List<String> manufacturers = data.manufacturers.map((item) => item.name).toList();
// 장비명 리스트 (드롭다운 + 직접입력용)
final List<String> equipmentNames = data.equipmentNames.map((item) => item.name).toList();
// 회사 리스트 (드롭다운 전용)
final Map<int, String> companies = {};
for (final company in data.companies) {
if (company.id != null) {
companies[company.id!] = company.name;
}
}
// 창고 리스트 (드롭다운 전용)
final Map<int, String> warehouses = {};
for (final warehouse in data.warehouses) {
if (warehouse.id != null) {
warehouses[warehouse.id!] = warehouse.name;
}
}
// 대분류 리스트 (드롭다운 + 직접입력용)
final List<String> category1List = data.equipmentCategories
.map((item) => item.category1)
.toSet()
.toList()
..sort();
return Right({
'manufacturers': manufacturers,
'equipment_names': equipmentNames,
'companies': companies,
'warehouses': warehouses,
'category1_list': category1List,
'category_combinations': data.equipmentCategories,
});
},
);
}
}