fixing filter pw for transfer, add transfer delete

internal/modules/inventory/product-warehouses/controllers/product_warehouse.controller.go

@@ -32,6 +32,7 @@ func (u *ProductWarehouseController) GetAll(c *fiber.Ctx) error {
 		Flags:           c.Query("flags", ""),
 		KandangId:       uint(c.QueryInt("kandang_id", 0)),
 		TransferContext: c.Query(utils.TransferContextKey, ""),
+		StockMode:       c.Query("stock_mode", ""),
 		Type:            c.Query("type", ""),
 	}
 

internal/modules/inventory/product-warehouses/dto/product_warehouse.dto.go

@@ -12,10 +12,11 @@ import (
 // === DTO Structs ===
 
 type ProductWarehouseRelationDTO struct {
-	Id          uint    `json:"id"`
-	ProductId   uint    `json:"product_id"`
-	WarehouseId uint    `json:"warehouse_id"`
-	Quantity    float64 `json:"quantity"`
+	Id           uint     `json:"id"`
+	ProductId    uint     `json:"product_id"`
+	WarehouseId  uint     `json:"warehouse_id"`
+	Quantity     float64  `json:"quantity"`
+	AvailableQty *float64 `json:"available_qty,omitempty"`
 }
 
 type ProductWarehouseListDTO struct {
@@ -61,10 +62,11 @@ type ProjectFlockRelationDTO struct {
 
 func ToProductWarehouseRelationDTO(e entity.ProductWarehouse) ProductWarehouseRelationDTO {
 	return ProductWarehouseRelationDTO{
-		Id:          e.Id,
-		ProductId:   e.ProductId,   // Field yang benar dari entity
-		WarehouseId: e.WarehouseId, // Field yang benar dari entity
-		Quantity:    e.Quantity,
+		Id:           e.Id,
+		ProductId:    e.ProductId,   // Field yang benar dari entity
+		WarehouseId:  e.WarehouseId, // Field yang benar dari entity
+		Quantity:     e.Quantity,
+		AvailableQty: e.AvailableQty,
 	}
 }
 

internal/modules/inventory/product-warehouses/services/product_warehouse.service.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"errors"
+	"strings"
 
 	"github.com/go-playground/validator/v10"
 	"github.com/gofiber/fiber/v2"
@@ -12,6 +13,7 @@ import (
 	validation "gitlab.com/mbugroup/lti-api.git/internal/modules/inventory/product-warehouses/validations"
 	kandangrepo "gitlab.com/mbugroup/lti-api.git/internal/modules/master/kandangs/repositories"
 	"gitlab.com/mbugroup/lti-api.git/internal/utils"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils/fifo"
 	"gorm.io/gorm"
 )
 
@@ -27,6 +29,8 @@ type productWarehouseService struct {
 	KandangRepo kandangrepo.KandangRepository
 }
 
+const stockModeExcludeChickin = "exclude_chickin"
+
 func NewProductWarehouseService(repo repository.ProductWarehouseRepository, validate *validator.Validate, kandangRepo kandangrepo.KandangRepository) ProductWarehouseService {
 	return &productWarehouseService{
 		Log:         utils.Log,
@@ -189,6 +193,11 @@ func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query)
 		s.Log.Errorf("Failed to get productWarehouses: %+v", err)
 		return nil, 0, err
 	}
+
+	productWarehouses, err = s.applyTransferAvailableQty(c, params, productWarehouses)
+	if err != nil {
+		return nil, 0, err
+	}
 	return productWarehouses, total, nil
 }
 
@@ -229,3 +238,80 @@ func (s productWarehouseService) GetOne(c *fiber.Ctx, id uint) (*entity.ProductW
 	}
 	return productWarehouse, nil
 }
+
+func (s productWarehouseService) applyTransferAvailableQty(c *fiber.Ctx, params *validation.Query, rows []entity.ProductWarehouse) ([]entity.ProductWarehouse, error) {
+	if len(rows) == 0 {
+		return rows, nil
+	}
+	if params == nil ||
+		params.TransferContext != utils.TransferContextInventoryTransfer ||
+		params.StockMode != stockModeExcludeChickin {
+		return rows, nil
+	}
+
+	ayamPWIDs := make([]uint, 0)
+	for i := range rows {
+		if isAyamProductByFlags(rows[i].Product.Flags) {
+			ayamPWIDs = append(ayamPWIDs, rows[i].Id)
+		}
+	}
+	if len(ayamPWIDs) == 0 {
+		return rows, nil
+	}
+
+	type usageRow struct {
+		ProductWarehouseID uint    `gorm:"column:product_warehouse_id"`
+		UsedQty            float64 `gorm:"column:used_qty"`
+	}
+	usageRows := make([]usageRow, 0)
+	if err := s.Repository.DB().WithContext(c.Context()).
+		Table("stock_allocations").
+		Select("product_warehouse_id, COALESCE(SUM(qty), 0) AS used_qty").
+		Where("product_warehouse_id IN ?", ayamPWIDs).
+		Where("usable_type = ?", fifo.UsableKeyProjectChickin.String()).
+		Where("status = ?", entity.StockAllocationStatusActive).
+		Where("allocation_purpose = ?", entity.StockAllocationPurposeConsume).
+		Where("deleted_at IS NULL").
+		Group("product_warehouse_id").
+		Scan(&usageRows).Error; err != nil {
+		s.Log.Errorf("Failed to calculate available transfer stock after chickin consumption: %+v", err)
+		return nil, fiber.NewError(fiber.StatusInternalServerError, "Gagal menghitung stok tersedia untuk transfer")
+	}
+
+	usageMap := make(map[uint]float64, len(usageRows))
+	for _, row := range usageRows {
+		usageMap[row.ProductWarehouseID] = row.UsedQty
+	}
+
+	filtered := make([]entity.ProductWarehouse, 0, len(rows))
+	for i := range rows {
+		row := rows[i]
+		if !isAyamProductByFlags(row.Product.Flags) {
+			filtered = append(filtered, row)
+			continue
+		}
+
+		available := row.Quantity - usageMap[row.Id]
+		if available < 0 {
+			available = 0
+		}
+		row.AvailableQty = &available
+
+		if available <= 0 {
+			continue
+		}
+
+		filtered = append(filtered, row)
+	}
+
+	return filtered, nil
+}
+
+func isAyamProductByFlags(flags []entity.Flag) bool {
+	for _, flag := range flags {
+		if utils.CanonicalFlagType(strings.TrimSpace(flag.Name)) == utils.FlagAyam {
+			return true
+		}
+	}
+	return false
+}

internal/modules/inventory/product-warehouses/validations/product_warehouse.validation.go

@@ -20,5 +20,6 @@ type Query struct {
 	Flags           string `query:"flags" validate:"omitempty"`
 	KandangId       uint   `query:"kandang_id" validate:"omitempty,number,min=1"`
 	TransferContext string `query:"transfer_context" validate:"omitempty,oneof=inventory_transfer"`
+	StockMode       string `query:"stock_mode" validate:"omitempty,oneof=exclude_chickin"`
 	Type            string `query:"type" validate:"omitempty"`
 }

internal/modules/inventory/transfers/controllers/transfer.controller.go

@@ -109,3 +109,23 @@ func (u *TransferController) CreateOne(c *fiber.Ctx) error {
 			Data:    dto.ToTransferDetailDTO(*result),
 		})
 }
+
+func (u *TransferController) DeleteOne(c *fiber.Ctx) error {
+	param := c.Params("id")
+
+	id, err := strconv.Atoi(param)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, "Invalid Id")
+	}
+
+	if err := u.TransferService.DeleteOne(c, uint(id)); err != nil {
+		return err
+	}
+
+	return c.Status(fiber.StatusOK).
+		JSON(response.Common{
+			Code:    fiber.StatusOK,
+			Status:  "success",
+			Message: "Delete transfer successfully",
+		})
+}

internal/modules/inventory/transfers/route.go

@@ -18,5 +18,6 @@ func TransferRoutes(v1 fiber.Router, u user.UserService, s transfer.TransferServ
 	route.Get("/", m.RequirePermissions(m.P_TransferGetAll), ctrl.GetAll)
 	route.Post("/", m.RequirePermissions(m.P_TransferCreateOne), ctrl.CreateOne)
 	route.Get("/:id", m.RequirePermissions(m.P_TransferGetOne), ctrl.GetOne)
+	route.Delete("/:id", m.RequirePermissions(m.P_TransferDeleteOne), ctrl.DeleteOne)
 
 }

internal/modules/inventory/transfers/services/transfer.service.go

@@ -5,7 +5,9 @@ import (
 	"errors"
 	"fmt"
 	"mime/multipart"
+	"sort"
 	"strings"
+	"time"
 
 	"github.com/go-playground/validator/v10"
 	"github.com/gofiber/fiber/v2"
@@ -21,14 +23,17 @@ import (
 	projectFlockKandangRepo "gitlab.com/mbugroup/lti-api.git/internal/modules/production/project_flocks/repositories"
 	rStockLogs "gitlab.com/mbugroup/lti-api.git/internal/modules/shared/repositories"
 	"gitlab.com/mbugroup/lti-api.git/internal/utils"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils/fifo"
 
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 )
 
 type TransferService interface {
 	GetAll(ctx *fiber.Ctx, params *validation.Query) ([]entity.StockTransfer, int64, error)
 	GetOne(ctx *fiber.Ctx, id uint) (*entity.StockTransfer, error)
 	CreateOne(ctx *fiber.Ctx, req *validation.TransferRequest, files []*multipart.FileHeader) (*entity.StockTransfer, error)
+	DeleteOne(ctx *fiber.Ctx, id uint) error
 }
 
 type transferService struct {
@@ -49,6 +54,8 @@ type transferService struct {
 	ExpenseBridge                 TransferExpenseBridge
 }
 
+const transferDeleteDownstreamGuardMessage = "Transfer stock tidak dapat dihapus karena stok transfer sudah dipakai transaksi turunan. Hapus dependensi terkait secara manual terlebih dahulu."
+
 func NewTransferService(validate *validator.Validate, stockTransferRepo rStockTransfer.StockTransferRepository, stockTransferDetailRepo rStockTransfer.StockTransferDetailRepository, stockTransferDeliveryRepo rStockTransfer.StockTransferDeliveryRepository, stockTransferDeliveryItemRepo rStockTransfer.StockTransferDeliveryItemRepository, stockLogsRepo rStockLogs.StockLogRepository, productWarehouseRepo rProductWarehouse.ProductWarehouseRepository, supplierRepo rSupplier.SupplierRepository, warehouseRepo warehouseRepo.WarehouseRepository, projectFlockKandangRepo projectFlockKandangRepo.ProjectFlockKandangRepository, projectFlockPopulationRepo projectFlockKandangRepo.ProjectFlockPopulationRepository, documentSvc commonSvc.DocumentService, fifoStockV2Svc commonSvc.FifoStockV2Service, expenseBridge TransferExpenseBridge) TransferService {
 	return &transferService{
 		Log:                           utils.Log,
@@ -104,6 +111,7 @@ func (s transferService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entit
 
 	transfers, total, err := s.StockTransferRepo.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
 		db = s.withRelations(db)
+		db = db.Where("stock_transfers.deleted_at IS NULL")
 		if scope.Restrict {
 			if len(scope.IDs) == 0 {
 				return db.Where("1 = 0")
@@ -145,6 +153,7 @@ func (s transferService) GetOne(c *fiber.Ctx, id uint) (*entity.StockTransfer, e
 			Joins("JOIN warehouses w_from ON w_from.id = stock_transfers.from_warehouse_id").
 			Joins("JOIN warehouses w_to ON w_to.id = stock_transfers.to_warehouse_id").
 			Where("stock_transfers.id = ?", id).
+			Where("stock_transfers.deleted_at IS NULL").
 			Where("w_from.location_id IN ? OR w_to.location_id IN ?", scope.IDs, scope.IDs).
 			Count(&count).Error; err != nil {
 			return nil, err
@@ -155,7 +164,7 @@ func (s transferService) GetOne(c *fiber.Ctx, id uint) (*entity.StockTransfer, e
 	}
 
 	transferPtr, err := s.StockTransferRepo.GetByID(c.Context(), id, func(db *gorm.DB) *gorm.DB {
-		return s.withRelations(db)
+		return s.withRelations(db).Where("stock_transfers.deleted_at IS NULL")
 	})
 	if err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
@@ -619,6 +628,210 @@ func (s *transferService) CreateOne(c *fiber.Ctx, req *validation.TransferReques
 	return result, nil
 }
 
+func (s *transferService) DeleteOne(c *fiber.Ctx, id uint) error {
+	if err := s.ensureTransferAccess(c.Context(), id, c); err != nil {
+		return err
+	}
+	if s.FifoStockV2Svc == nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "FIFO v2 service is not available")
+	}
+
+	actorID, err := m.ActorIDFromContext(c)
+	if err != nil {
+		return err
+	}
+
+	var deletedDetails []entity.StockTransferDetail
+	err = s.StockTransferRepo.DB().WithContext(c.Context()).Transaction(func(tx *gorm.DB) error {
+		stockLogRepoTx := rStockLogs.NewStockLogRepository(tx)
+
+		var transfer entity.StockTransfer
+		if err := tx.WithContext(c.Context()).
+			Clauses(clause.Locking{Strength: "UPDATE"}).
+			Where("id = ?", uint64(id)).
+			Where("deleted_at IS NULL").
+			Take(&transfer).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return fiber.NewError(fiber.StatusNotFound, fmt.Sprintf("Transfer dengan ID %d tidak ditemukan", id))
+			}
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal mengambil data transfer")
+		}
+
+		var details []entity.StockTransferDetail
+		if err := tx.WithContext(c.Context()).
+			Clauses(clause.Locking{Strength: "UPDATE"}).
+			Where("stock_transfer_id = ?", transfer.Id).
+			Where("deleted_at IS NULL").
+			Order("id ASC").
+			Find(&details).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal mengambil detail transfer")
+		}
+		if len(details) == 0 {
+			return fiber.NewError(fiber.StatusBadRequest, "Transfer tidak memiliki detail produk")
+		}
+
+		detailIDs := make([]uint64, 0, len(details))
+		for _, detail := range details {
+			detailIDs = append(detailIDs, detail.Id)
+		}
+		if err := s.ensureNoDownstreamConsumptionForDelete(c.Context(), tx, detailIDs); err != nil {
+			return err
+		}
+
+		type reflowKey struct {
+			flagGroupCode      string
+			productWarehouseID uint
+		}
+		destReflows := make(map[reflowKey]struct{})
+
+		for _, detail := range details {
+			if detail.SourceProductWarehouseID == nil || *detail.SourceProductWarehouseID == 0 {
+				return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("Detail transfer %d tidak memiliki source product warehouse valid", detail.Id))
+			}
+			if detail.DestProductWarehouseID == nil || *detail.DestProductWarehouseID == 0 {
+				return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("Detail transfer %d tidak memiliki destination product warehouse valid", detail.Id))
+			}
+
+			flagGroupCode, err := s.resolveTransferFlagGroup(c.Context(), tx, uint(detail.ProductId))
+			if err != nil {
+				return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("FIFO v2 route tidak ditemukan untuk produk %d: %v", detail.ProductId, err))
+			}
+
+			rollbackRes, err := s.FifoStockV2Svc.Rollback(c.Context(), commonSvc.FifoStockV2RollbackRequest{
+				ProductWarehouseID: uint(*detail.SourceProductWarehouseID),
+				Usable: commonSvc.FifoStockV2Ref{
+					ID:            uint(detail.Id),
+					LegacyTypeKey: fifo.UsableKeyStockTransferOut.String(),
+					FunctionCode:  "STOCK_TRANSFER_OUT",
+				},
+				Reason: fmt.Sprintf("transfer delete #%s", transfer.MovementNumber),
+				Tx:     tx,
+			})
+			if err != nil {
+				return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("Gagal rollback FIFO v2 transfer detail %d: %v", detail.Id, err))
+			}
+
+			releasedQty := 0.0
+			if rollbackRes != nil {
+				releasedQty = rollbackRes.ReleasedQty
+			}
+			if detail.UsageQty > 1e-6 && releasedQty < detail.UsageQty-1e-6 {
+				return fiber.NewError(
+					fiber.StatusBadRequest,
+					fmt.Sprintf("Rollback FIFO v2 source transfer detail %d tidak lengkap. Dibutuhkan %.3f, terlepas %.3f", detail.Id, detail.UsageQty, releasedQty),
+				)
+			}
+
+			if releasedQty > 1e-6 {
+				if err := s.appendStockLog(
+					c.Context(),
+					stockLogRepoTx,
+					uint(*detail.SourceProductWarehouseID),
+					actorID,
+					releasedQty,
+					0,
+					uint(detail.Id),
+					fmt.Sprintf("TRANSFER DELETE #%s", transfer.MovementNumber),
+				); err != nil {
+					return err
+				}
+			}
+
+			destDecreaseQty := detail.TotalQty
+			if destDecreaseQty <= 1e-6 {
+				destDecreaseQty = detail.UsageQty
+			}
+			if destDecreaseQty > 1e-6 {
+				if err := s.appendStockLog(
+					c.Context(),
+					stockLogRepoTx,
+					uint(*detail.DestProductWarehouseID),
+					actorID,
+					0,
+					destDecreaseQty,
+					uint(detail.Id),
+					fmt.Sprintf("TRANSFER DELETE #%s", transfer.MovementNumber),
+				); err != nil {
+					return err
+				}
+			}
+
+			destReflows[reflowKey{
+				flagGroupCode:      flagGroupCode,
+				productWarehouseID: uint(*detail.DestProductWarehouseID),
+			}] = struct{}{}
+		}
+
+		now := time.Now().UTC()
+		if err := tx.WithContext(c.Context()).
+			Where("stock_transfer_detail_id IN ?", detailIDs).
+			Delete(&entity.StockTransferDeliveryItem{}).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal menghapus item delivery transfer")
+		}
+		if err := tx.WithContext(c.Context()).
+			Model(&entity.StockTransferDelivery{}).
+			Where("stock_transfer_id = ?", transfer.Id).
+			Where("deleted_at IS NULL").
+			Updates(map[string]any{
+				"deleted_at": now,
+				"updated_at": now,
+			}).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal menghapus delivery transfer")
+		}
+		if err := tx.WithContext(c.Context()).
+			Model(&entity.StockTransferDetail{}).
+			Where("id IN ?", detailIDs).
+			Where("deleted_at IS NULL").
+			Updates(map[string]any{
+				"deleted_at": now,
+				"updated_at": now,
+			}).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal menghapus detail transfer")
+		}
+
+		asOf := transfer.TransferDate
+		for key := range destReflows {
+			if _, err := s.FifoStockV2Svc.Reflow(c.Context(), commonSvc.FifoStockV2ReflowRequest{
+				FlagGroupCode:      key.flagGroupCode,
+				ProductWarehouseID: key.productWarehouseID,
+				AsOf:               &asOf,
+				Tx:                 tx,
+			}); err != nil {
+				return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("Gagal reflow stok tujuan saat delete transfer: %v", err))
+			}
+		}
+
+		if err := tx.WithContext(c.Context()).
+			Model(&entity.StockTransfer{}).
+			Where("id = ?", transfer.Id).
+			Where("deleted_at IS NULL").
+			Updates(map[string]any{
+				"deleted_at": now,
+				"updated_at": now,
+			}).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Gagal menghapus transfer")
+		}
+
+		deletedDetails = append(deletedDetails, details...)
+		return nil
+	})
+	if err != nil {
+		if fiberErr, ok := err.(*fiber.Error); ok {
+			return fiberErr
+		}
+		return fiber.NewError(fiber.StatusInternalServerError, "Gagal menghapus transfer")
+	}
+
+	if len(deletedDetails) > 0 && s.ExpenseBridge != nil {
+		if err := s.ExpenseBridge.OnItemsDeleted(c.Context(), uint64(id), deletedDetails); err != nil {
+			s.Log.Errorf("Failed to cleanup transfer expense link for transfer_id=%d: %+v", id, err)
+			return fiber.NewError(fiber.StatusInternalServerError, "Transfer berhasil dihapus, namun sinkronisasi expense gagal. Silakan cek modul expense")
+		}
+	}
+
+	return nil
+}
+
 func (s *transferService) resolveTransferFlagGroup(
 	ctx context.Context,
 	tx *gorm.DB,
@@ -692,3 +905,179 @@ func (s *transferService) getActiveProjectFlockKandangID(ctx context.Context, wa
 
 	return uint(projectFlockKandang.Id), nil
 }
+
+func (s *transferService) ensureTransferAccess(ctx context.Context, id uint, c *fiber.Ctx) error {
+	scope, err := m.ResolveLocationScope(c, s.StockTransferRepo.DB())
+	if err != nil {
+		return err
+	}
+	if !scope.Restrict {
+		return nil
+	}
+	if len(scope.IDs) == 0 {
+		return fiber.NewError(fiber.StatusNotFound, "Transfer not found")
+	}
+
+	var count int64
+	if err := s.StockTransferRepo.DB().WithContext(ctx).
+		Table("stock_transfers").
+		Joins("JOIN warehouses w_from ON w_from.id = stock_transfers.from_warehouse_id").
+		Joins("JOIN warehouses w_to ON w_to.id = stock_transfers.to_warehouse_id").
+		Where("stock_transfers.id = ?", id).
+		Where("stock_transfers.deleted_at IS NULL").
+		Where("w_from.location_id IN ? OR w_to.location_id IN ?", scope.IDs, scope.IDs).
+		Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		return fiber.NewError(fiber.StatusNotFound, "Transfer not found")
+	}
+
+	return nil
+}
+
+func (s *transferService) ensureNoDownstreamConsumptionForDelete(ctx context.Context, tx *gorm.DB, detailIDs []uint64) error {
+	if len(detailIDs) == 0 {
+		return nil
+	}
+
+	db := s.StockTransferRepo.DB().WithContext(ctx)
+	if tx != nil {
+		db = tx.WithContext(ctx)
+	}
+
+	type downstreamRow struct {
+		UsableType string `gorm:"column:usable_type"`
+		UsableID   uint64 `gorm:"column:usable_id"`
+	}
+
+	var rows []downstreamRow
+	if err := db.Table("stock_allocations").
+		Select("usable_type, usable_id").
+		Where("stockable_type = ?", fifo.StockableKeyStockTransferIn.String()).
+		Where("stockable_id IN ?", detailIDs).
+		Where("status = ?", entity.StockAllocationStatusActive).
+		Where("allocation_purpose = ?", entity.StockAllocationPurposeConsume).
+		Where("deleted_at IS NULL").
+		Group("usable_type, usable_id").
+		Scan(&rows).Error; err != nil {
+		s.Log.Errorf("Failed to validate downstream stock transfer consumption: %+v", err)
+		return fiber.NewError(fiber.StatusInternalServerError, "Gagal memvalidasi transaksi turunan transfer stock")
+	}
+
+	if len(rows) == 0 {
+		return nil
+	}
+
+	dependencyMap := make(map[string]map[uint64]struct{})
+	for _, row := range rows {
+		label := mapTransferDownstreamUsableLabel(row.UsableType)
+		if _, ok := dependencyMap[label]; !ok {
+			dependencyMap[label] = make(map[uint64]struct{})
+		}
+		dependencyMap[label][row.UsableID] = struct{}{}
+	}
+
+	labels := make([]string, 0, len(dependencyMap))
+	for label := range dependencyMap {
+		labels = append(labels, label)
+	}
+	sort.Strings(labels)
+
+	details := make([]string, 0, len(labels))
+	for _, label := range labels {
+		ids := sortedUint64Keys(dependencyMap[label])
+		details = append(details, fmt.Sprintf("%s=%s", label, joinUint64(ids)))
+	}
+
+	return fiber.NewError(
+		fiber.StatusBadRequest,
+		fmt.Sprintf("%s Dependensi aktif: %s.", transferDeleteDownstreamGuardMessage, strings.Join(details, ", ")),
+	)
+}
+
+func mapTransferDownstreamUsableLabel(usableType string) string {
+	switch strings.ToUpper(strings.TrimSpace(usableType)) {
+	case fifo.UsableKeyRecordingStock.String(), fifo.UsableKeyRecordingDepletion.String():
+		return "Recording"
+	case fifo.UsableKeyProjectChickin.String():
+		return "Chickin"
+	case fifo.UsableKeyMarketingDelivery.String():
+		return "Marketing"
+	case fifo.UsableKeyTransferToLayingOut.String():
+		return "TransferToLaying"
+	case fifo.UsableKeyStockTransferOut.String():
+		return "TransferStock"
+	case fifo.UsableKeyAdjustmentOut.String():
+		return "Adjustment"
+	default:
+		return strings.ToUpper(strings.TrimSpace(usableType))
+	}
+}
+
+func sortedUint64Keys(input map[uint64]struct{}) []uint64 {
+	if len(input) == 0 {
+		return nil
+	}
+	out := make([]uint64, 0, len(input))
+	for id := range input {
+		if id == 0 {
+			continue
+		}
+		out = append(out, id)
+	}
+	sort.Slice(out, func(i, j int) bool { return out[i] < out[j] })
+	return out
+}
+
+func joinUint64(values []uint64) string {
+	if len(values) == 0 {
+		return "-"
+	}
+	parts := make([]string, 0, len(values))
+	for _, value := range values {
+		parts = append(parts, fmt.Sprintf("%d", value))
+	}
+	return strings.Join(parts, "|")
+}
+
+func (s *transferService) appendStockLog(
+	ctx context.Context,
+	stockLogRepo rStockLogs.StockLogRepository,
+	productWarehouseID uint,
+	actorID uint,
+	increase float64,
+	decrease float64,
+	loggableID uint,
+	notes string,
+) error {
+	if productWarehouseID == 0 || (increase <= 1e-6 && decrease <= 1e-6) {
+		return nil
+	}
+
+	stockLog := &entity.StockLog{
+		ProductWarehouseId: productWarehouseID,
+		CreatedBy:          actorID,
+		Increase:           increase,
+		Decrease:           decrease,
+		LoggableType:       string(utils.StockLogTypeTransfer),
+		LoggableId:         loggableID,
+		Notes:              notes,
+	}
+
+	stockLogs, err := stockLogRepo.GetByProductWarehouse(ctx, productWarehouseID, 1)
+	if err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to get stock logs")
+	}
+	if len(stockLogs) > 0 {
+		latestStockLog := stockLogs[0]
+		stockLog.Stock = latestStockLog.Stock + increase - decrease
+	} else {
+		stockLog.Stock = increase - decrease
+	}
+	if err := stockLogRepo.CreateOne(ctx, stockLog, nil); err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Gagal membuat stock log saat delete transfer")
+	}
+
+	return nil
+}