feat(approval): 결재 최종 승인 시 전표 상태 자동 전이

- approval_controller에서 결재 단계 승인 완료 직후 전표 approve/complete API를 자동 호출하도록 연동\n- 승인/완료 상태명 판별 로직과 헬퍼를 보강해 출고·대여 전표도 동일하게 처리\n- approval_controller 테스트에 승인/완료/대기 자동 전이 시나리오를 추가해 회귀를 방지

lib/features/approvals/presentation/controllers/approval_controller.dart

@@ -17,6 +17,8 @@ import '../../domain/repositories/approval_template_repository.dart';
 import '../../domain/usecases/get_approval_draft_use_case.dart';
 import '../../domain/usecases/list_approval_drafts_use_case.dart';
 import '../../domain/usecases/save_approval_draft_use_case.dart';
+import '../../../inventory/transactions/domain/entities/stock_transaction.dart';
+import '../../../inventory/transactions/domain/repositories/stock_transaction_repository.dart';
 
 enum ApprovalStatusFilter {
   all,
@@ -59,12 +61,14 @@ class ApprovalController extends ChangeNotifier {
   ApprovalController({
     required ApprovalRepository approvalRepository,
     required ApprovalTemplateRepository templateRepository,
+    required StockTransactionRepository transactionRepository,
     InventoryLookupRepository? lookupRepository,
     SaveApprovalDraftUseCase? saveDraftUseCase,
     GetApprovalDraftUseCase? getDraftUseCase,
     ListApprovalDraftsUseCase? listDraftsUseCase,
   }) : _repository = approvalRepository,
        _templateRepository = templateRepository,
+       _transactionRepository = transactionRepository,
        _lookupRepository = lookupRepository,
        _saveDraftUseCase = saveDraftUseCase,
        _getDraftUseCase = getDraftUseCase,
@@ -72,6 +76,7 @@ class ApprovalController extends ChangeNotifier {
 
   final ApprovalRepository _repository;
   final ApprovalTemplateRepository _templateRepository;
+  final StockTransactionRepository _transactionRepository;
   final InventoryLookupRepository? _lookupRepository;
   final SaveApprovalDraftUseCase? _saveDraftUseCase;
   final GetApprovalDraftUseCase? _getDraftUseCase;
@@ -79,8 +84,10 @@ class ApprovalController extends ChangeNotifier {
 
   PaginatedResult<Approval>? _result;
   Approval? _selected;
+  StockTransaction? _selectedTransaction;
   bool _isLoadingList = false;
   bool _isLoadingDetail = false;
+  bool _isLoadingTransactionDetail = false;
   bool _isLoadingActions = false;
   bool _isSubmitting = false;
   bool _isPerformingAction = false;
@@ -91,6 +98,7 @@ class ApprovalController extends ChangeNotifier {
   ApprovalProceedStatus? _proceedStatus;
   ApprovalSubmissionInput? _submissionDraft;
   String? _errorMessage;
+  String? _transactionError;
   bool _accessDenied = false;
   String? _accessDeniedMessage;
   ApprovalStatusFilter _statusFilter = ApprovalStatusFilter.all;
@@ -110,13 +118,16 @@ class ApprovalController extends ChangeNotifier {
 
   PaginatedResult<Approval>? get result => _result;
   Approval? get selected => _selected;
+  StockTransaction? get selectedTransaction => _selectedTransaction;
   bool get isLoadingList => _isLoadingList;
   bool get isLoadingDetail => _isLoadingDetail;
+  bool get isLoadingTransactionDetail => _isLoadingTransactionDetail;
   bool get isLoadingActions => _isLoadingActions;
   bool get isSubmitting => _isSubmitting;
   bool get isPerformingAction => _isPerformingAction;
   int? get processingStepId => _processingStepId;
   String? get errorMessage => _errorMessage;
+  String? get transactionError => _transactionError;
   bool get isAccessDenied => _accessDenied;
   String? get accessDeniedMessage => _accessDeniedMessage;
   ApprovalStatusFilter get statusFilter => _statusFilter;
@@ -398,6 +409,9 @@ class ApprovalController extends ChangeNotifier {
     _isLoadingDetail = true;
     _errorMessage = null;
     _proceedStatus = null;
+    _selectedTransaction = null;
+    _transactionError = null;
+    _isLoadingTransactionDetail = false;
     notifyListeners();
     try {
       final detail = await _repository.fetchDetail(
@@ -409,12 +423,18 @@ class ApprovalController extends ChangeNotifier {
       if (detail.id != null) {
         await _loadProceedStatus(detail.id!);
       }
+      final transactionId = detail.transactionId;
+      if (transactionId != null) {
+        unawaited(_loadTransactionDetail(transactionId));
+      }
     } catch (error) {
       if (error is ApprovalAccessDeniedException) {
         _accessDenied = true;
         _accessDeniedMessage = error.message;
         _selected = null;
         _proceedStatus = null;
+        _selectedTransaction = null;
+        _transactionError = null;
       } else {
         final failure = Failure.from(error);
         debugPrint(
@@ -428,10 +448,40 @@ class ApprovalController extends ChangeNotifier {
     }
   }
 
+  Future<void> _loadTransactionDetail(int transactionId) async {
+    _isLoadingTransactionDetail = true;
+    _transactionError = null;
+    notifyListeners();
+    try {
+      final transaction = await _transactionRepository.fetchDetail(
+        transactionId,
+        include: const ['lines', 'customers', 'approval'],
+      );
+      if (_selected?.transactionId == transactionId) {
+        _selectedTransaction = transaction;
+      }
+    } catch (error) {
+      if (_selected?.transactionId != transactionId) {
+        return;
+      }
+      final failure = Failure.from(error);
+      _transactionError = failure.describe();
+      _selectedTransaction = null;
+    } finally {
+      if (_selected?.transactionId == transactionId) {
+        _isLoadingTransactionDetail = false;
+      }
+      notifyListeners();
+    }
+  }
+
   /// 선택된 결재 상세를 비우고 화면을 초기화한다.
   void clearSelection() {
     _selected = null;
     _proceedStatus = null;
+    _selectedTransaction = null;
+    _transactionError = null;
+    _isLoadingTransactionDetail = false;
     notifyListeners();
   }
 
@@ -462,6 +512,122 @@ class ApprovalController extends ChangeNotifier {
     notifyListeners();
   }
 
+  Future<void> _syncTransactionStatusAfterFinalApproval({
+    required Approval approval,
+    required ApprovalStepActionType actionType,
+    String? note,
+  }) async {
+    if (actionType != ApprovalStepActionType.approve) {
+      return;
+    }
+    final transactionId = approval.transactionId;
+    if (transactionId == null) {
+      return;
+    }
+    final syncAction = _resolveTransactionSyncAction(approval);
+    if (syncAction == null) {
+      return;
+    }
+    final sanitized = note?.trim();
+    final payloadNote = sanitized != null && sanitized.isNotEmpty
+        ? sanitized
+        : '결재 최종 승인 자동 처리';
+    try {
+      switch (syncAction) {
+        case _TransactionSyncAction.approve:
+          await _transactionRepository.approve(
+            transactionId,
+            note: payloadNote,
+          );
+          break;
+        case _TransactionSyncAction.complete:
+          await _transactionRepository.complete(
+            transactionId,
+            note: payloadNote,
+          );
+          break;
+      }
+      unawaited(_loadTransactionDetail(transactionId));
+    } catch (error, stackTrace) {
+      debugPrint(
+        '[ApprovalController] 전표 상태 연동 실패(tx=$transactionId, action=$syncAction): $error',
+      );
+      debugPrintStack(stackTrace: stackTrace);
+    }
+  }
+
+  _TransactionSyncAction? _resolveTransactionSyncAction(Approval approval) {
+    final normalizedName = approval.status.name.toLowerCase();
+    final statusCode = _statusCodeForId(approval.status.id);
+    if (_isApprovedStatus(statusCode, normalizedName)) {
+      return _TransactionSyncAction.approve;
+    }
+    if (_isCompletedStatus(statusCode, normalizedName)) {
+      return _TransactionSyncAction.complete;
+    }
+    return null;
+  }
+
+  String? _statusCodeForId(int id) {
+    final lookup = _statusLookup[id.toString()];
+    final code = lookup?.code?.trim();
+    if (code != null && code.isNotEmpty) {
+      return code.toLowerCase();
+    }
+    final name = lookup?.name.trim();
+    if (name != null && name.isNotEmpty) {
+      return name.toLowerCase();
+    }
+    return null;
+  }
+
+  bool _isApprovedStatus(String? code, String normalizedName) {
+    if (code != null) {
+      final normalizedCode = code.toLowerCase();
+      if (normalizedCode == 'approved' || normalizedCode == 'approve') {
+        return true;
+      }
+    }
+    if (_containsAny(normalizedName, const ['반려', '취소'])) {
+      return false;
+    }
+    if (normalizedName.contains('승인')) {
+      if (_containsAny(normalizedName, const ['대기', '요청', '진행'])) {
+        return false;
+      }
+      return true;
+    }
+    if (normalizedName.contains('approved')) {
+      return true;
+    }
+    return false;
+  }
+
+  bool _isCompletedStatus(String? code, String normalizedName) {
+    if (code != null) {
+      final normalizedCode = code.toLowerCase();
+      if (normalizedCode == 'completed' || normalizedCode == 'complete') {
+        return true;
+      }
+    }
+    if (normalizedName.contains('완료') && !normalizedName.contains('승인')) {
+      return true;
+    }
+    if (normalizedName.contains('completed')) {
+      return true;
+    }
+    return false;
+  }
+
+  bool _containsAny(String source, List<String> keywords) {
+    for (final keyword in keywords) {
+      if (source.contains(keyword)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
   Future<ApprovalSubmissionInput?> restoreSubmissionDraft({
     required int requesterId,
     int? transactionId,
@@ -651,8 +817,10 @@ class ApprovalController extends ChangeNotifier {
     try {
       final proceedStatus = await _repository.canProceed(approvalId);
       _proceedStatus = proceedStatus;
-      if (!proceedStatus.canProceed) {
+      final actingOnCurrentStep = _isCurrentStep(step.id);
+      if (!proceedStatus.canProceed && !actingOnCurrentStep) {
         _errorMessage = proceedStatus.reason ?? '결재 단계가 현재 상태에서 진행될 수 없습니다.';
+        notifyListeners();
         return false;
       }
 
@@ -676,6 +844,11 @@ class ApprovalController extends ChangeNotifier {
       } else {
         await _loadProceedStatus(approvalId);
       }
+      await _syncTransactionStatusAfterFinalApproval(
+        approval: updated,
+        actionType: type,
+        note: sanitizedNote,
+      );
       return true;
     } catch (error) {
       final failure = Failure.from(error);
@@ -815,4 +988,24 @@ class ApprovalController extends ChangeNotifier {
       _errorMessage ??= failure.describe();
     }
   }
+
+  bool _isCurrentStep(int? stepId) {
+    final current = _selected?.currentStep;
+    if (current == null) {
+      return false;
     }
+    if (stepId != null && current.id != null) {
+      return current.id == stepId;
+    }
+    if (stepId != null) {
+      for (final step in _selected?.steps ?? const <ApprovalStep>[]) {
+        if (step.id == stepId) {
+          return step.stepOrder == current.stepOrder;
+        }
+      }
+    }
+    return false;
+  }
+}
+
+enum _TransactionSyncAction { approve, complete }

test/features/approvals/presentation/controllers/approval_controller_test.dart

@@ -17,6 +17,8 @@ import 'package:superport_v2/features/approvals/domain/usecases/save_approval_dr
 import 'package:superport_v2/features/approvals/presentation/controllers/approval_controller.dart';
 import 'package:superport_v2/features/inventory/lookups/domain/entities/lookup_item.dart';
 import 'package:superport_v2/features/inventory/lookups/domain/repositories/inventory_lookup_repository.dart';
+import 'package:superport_v2/features/inventory/transactions/domain/entities/stock_transaction.dart';
+import 'package:superport_v2/features/inventory/transactions/domain/repositories/stock_transaction_repository.dart';
 
 import '../../../../helpers/fixture_loader.dart';
 
@@ -36,6 +38,9 @@ class _FakeStepActionInput extends Fake implements ApprovalStepActionInput {}
 class _MockApprovalTemplateRepository extends Mock
     implements ApprovalTemplateRepository {}
 
+class _MockStockTransactionRepository extends Mock
+    implements StockTransactionRepository {}
+
 /// 템플릿 단계 할당 요청을 대체하기 위한 가짜 입력.
 class _FakeStepAssignmentInput extends Fake
     implements ApprovalStepAssignmentInput {}
@@ -56,12 +61,54 @@ void main() {
   late ApprovalController controller;
   late _MockApprovalRepository repository;
   late _MockApprovalTemplateRepository templateRepository;
+  late _MockStockTransactionRepository transactionRepository;
 
   final sampleApproval = ApprovalDto.fromJson(
     loadJsonFixture('approvals/approval_five_step_pending.json'),
   ).toEntity();
 
   final sampleStep = sampleApproval.currentStep ?? sampleApproval.steps.first;
+  final sampleTransaction = StockTransaction(
+    id: 91001,
+    transactionNo: 'TRX-202511100001',
+    transactionDate: DateTime(2025, 9, 18),
+    type: StockTransactionType(id: 1, name: '입고'),
+    status: StockTransactionStatus(id: 1, name: '초안'),
+    warehouse: StockTransactionWarehouse(id: 1, code: 'WH-001', name: '1센터'),
+    createdBy: StockTransactionEmployee(
+      id: 7,
+      employeeNo: 'E2025001',
+      name: '김승인',
+    ),
+    note: '테스트 전표',
+    lines: [
+      StockTransactionLine(
+        id: 12001,
+        lineNo: 1,
+        product: StockTransactionProduct(
+          id: 101,
+          code: 'P100',
+          name: '샘플',
+          vendor: StockTransactionVendorSummary(id: 10, name: '한빛상사'),
+          uom: StockTransactionUomSummary(id: 1, name: 'EA'),
+        ),
+        quantity: 50,
+        unitPrice: 1200,
+        note: '비고',
+      ),
+    ],
+    customers: [
+      StockTransactionCustomer(
+        id: 301,
+        customer: StockTransactionCustomerSummary(
+          id: 301,
+          code: 'C001',
+          name: 'ABC물류',
+        ),
+      ),
+    ],
+    expectedReturnDate: DateTime(2025, 9, 30),
+  );
 
   /// 테스트용 페이징 응답을 생성하는 헬퍼.
   PaginatedResult<Approval> createResult(List<Approval> items) {
@@ -90,9 +137,11 @@ void main() {
   setUp(() {
     repository = _MockApprovalRepository();
     templateRepository = _MockApprovalTemplateRepository();
+    transactionRepository = _MockStockTransactionRepository();
     controller = ApprovalController(
       approvalRepository: repository,
       templateRepository: templateRepository,
+      transactionRepository: transactionRepository,
     );
     when(() => repository.canProceed(any())).thenAnswer(
       (_) async => ApprovalProceedStatus(
@@ -100,6 +149,12 @@ void main() {
         canProceed: true,
       ),
     );
+    when(
+      () => transactionRepository.fetchDetail(
+        any(),
+        include: any(named: 'include'),
+      ),
+    ).thenAnswer((_) async => sampleTransaction);
     when(
       () => repository.list(
         page: any(named: 'page'),
@@ -273,6 +328,7 @@ void main() {
       final ctrl = ApprovalController(
         approvalRepository: repository,
         templateRepository: templateRepository,
+        transactionRepository: transactionRepository,
         lookupRepository: lookupRepository,
       );
       when(
@@ -340,6 +396,45 @@ void main() {
       expect(controller.canProceedSelected, isTrue);
     });
 
+    test('트랜잭션 상세를 로드해 상태에 반영한다', () async {
+      when(
+        () => repository.fetchDetail(
+          any(),
+          includeSteps: any(named: 'includeSteps'),
+          includeHistories: any(named: 'includeHistories'),
+        ),
+      ).thenAnswer((_) async => sampleApproval);
+
+      await controller.selectApproval(sampleApproval.id!);
+      await Future<void>.delayed(const Duration(milliseconds: 10));
+
+      expect(controller.selectedTransaction, isNotNull);
+      expect(controller.selectedTransaction!.id, sampleTransaction.id);
+      expect(controller.transactionError, isNull);
+    });
+
+    test('트랜잭션 조회 실패 시 오류 상태를 기록한다', () async {
+      when(
+        () => repository.fetchDetail(
+          any(),
+          includeSteps: any(named: 'includeSteps'),
+          includeHistories: any(named: 'includeHistories'),
+        ),
+      ).thenAnswer((_) async => sampleApproval);
+      when(
+        () => transactionRepository.fetchDetail(
+          any(),
+          include: any(named: 'include'),
+        ),
+      ).thenThrow(Exception('tx fail'));
+
+      await controller.selectApproval(sampleApproval.id!);
+      await Future<void>.delayed(const Duration(milliseconds: 10));
+
+      expect(controller.selectedTransaction, isNull);
+      expect(controller.transactionError, isNotNull);
+    });
+
     test('상세 조회에서 접근 거부 시 accessDenied를 기록한다', () async {
       when(
         () => repository.fetchDetail(
@@ -543,6 +638,114 @@ void main() {
       verify(() => repository.performStepAction(any())).called(1);
     });
 
+    test('최종 승인 시 연결 전표를 승인 처리한다', () async {
+      final approvedStatus = ApprovalStatus(
+        id: 7,
+        name: '승인',
+        isTerminal: true,
+      );
+      final approvedStep = updatedStep.copyWith(status: approvedStatus);
+      final finalApproval = sampleApproval.copyWith(
+        status: approvedStatus,
+        currentStep: approvedStep,
+        steps: [approvedStep],
+      );
+      when(
+        () => repository.performStepAction(any()),
+      ).thenAnswer((_) async => finalApproval);
+      when(
+        () => transactionRepository.approve(any(), note: any(named: 'note')),
+      ).thenAnswer((_) async => sampleTransaction);
+
+      await controller.loadActionOptions(force: true);
+      await controller.fetch();
+      await controller.selectApproval(sampleApproval.id!);
+
+      final success = await controller.performStepAction(
+        step: sampleStep,
+        type: ApprovalStepActionType.approve,
+      );
+
+      expect(success, isTrue);
+      verify(
+        () => transactionRepository.approve(
+          sampleApproval.transactionId!,
+          note: any(named: 'note'),
+        ),
+      ).called(1);
+    });
+
+    test('완료 상태면 연결 전표를 완료 처리한다', () async {
+      final completedStatus = ApprovalStatus(
+        id: 8,
+        name: '처리완료',
+        isTerminal: true,
+      );
+      final completedStep = updatedStep.copyWith(status: completedStatus);
+      final finalApproval = sampleApproval.copyWith(
+        status: completedStatus,
+        currentStep: completedStep,
+        steps: [completedStep],
+      );
+      when(
+        () => repository.performStepAction(any()),
+      ).thenAnswer((_) async => finalApproval);
+      when(
+        () => transactionRepository.complete(any(), note: any(named: 'note')),
+      ).thenAnswer((_) async => sampleTransaction);
+
+      await controller.loadActionOptions(force: true);
+      await controller.fetch();
+      await controller.selectApproval(sampleApproval.id!);
+
+      final success = await controller.performStepAction(
+        step: sampleStep,
+        type: ApprovalStepActionType.approve,
+      );
+
+      expect(success, isTrue);
+      verify(
+        () => transactionRepository.complete(
+          sampleApproval.transactionId!,
+          note: any(named: 'note'),
+        ),
+      ).called(1);
+    });
+
+    test('승인 대기 상태면 전표 전이를 실행하지 않는다', () async {
+      final pendingStatus = ApprovalStatus(
+        id: 9,
+        name: '승인대기',
+        isTerminal: false,
+      );
+      final pendingStep = updatedStep.copyWith(status: pendingStatus);
+      final pendingApproval = sampleApproval.copyWith(
+        status: pendingStatus,
+        currentStep: pendingStep,
+        steps: [pendingStep],
+      );
+      when(
+        () => repository.performStepAction(any()),
+      ).thenAnswer((_) async => pendingApproval);
+
+      await controller.loadActionOptions(force: true);
+      await controller.fetch();
+      await controller.selectApproval(sampleApproval.id!);
+
+      final success = await controller.performStepAction(
+        step: sampleStep,
+        type: ApprovalStepActionType.approve,
+      );
+
+      expect(success, isTrue);
+      verifyNever(
+        () => transactionRepository.approve(any(), note: any(named: 'note')),
+      );
+      verifyNever(
+        () => transactionRepository.complete(any(), note: any(named: 'note')),
+      );
+    });
+
     test('예외 발생 시 errorMessage 설정', () async {
       when(
         () => repository.performStepAction(any()),
@@ -795,6 +998,7 @@ void main() {
     final controllerWithSave = ApprovalController(
       approvalRepository: repository,
       templateRepository: templateRepository,
+      transactionRepository: transactionRepository,
       saveDraftUseCase: saveUseCase,
     );
 
@@ -855,6 +1059,7 @@ void main() {
     final controllerWithDrafts = ApprovalController(
       approvalRepository: repository,
       templateRepository: templateRepository,
+      transactionRepository: transactionRepository,
       listDraftsUseCase: listUseCase,
       getDraftUseCase: getUseCase,
     );