Feat[BE]: refactor document handling in transfer service and introduce document type constants

internal/modules/inventory/transfers/dto/transfer.dto.go

@@ -7,8 +7,6 @@ import (
 	userDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/users/dto"
 )
 
-// === DTO Structs ===
-
 type TransferRelationDTO struct {
 	Id                   uint64              `json:"id"`
 	TransferReason       string              `json:"transfer_reason"`
@@ -17,7 +15,6 @@ type TransferRelationDTO struct {
 	DestinationWarehouse *WarehouseDetailDTO `json:"destination_warehouse,omitempty"`
 }
 
-// Only id and name for warehouse simple view
 type WarehouseSimpleDTO struct {
 	Id   uint   `json:"id"`
 	Name string `json:"name"`
@@ -65,7 +62,6 @@ type TransferListDTO struct {
 	UpdatedAt   time.Time                `json:"updated_at"`
 	Details     []TransferDetailItemDTO  `json:"details"`
 	Deliveries  []TransferDeliveryDTO    `json:"deliveries"`
-	Documents   []DocumentDTO            `json:"documents"`
 }
 
 type TransferDetailDTO struct {
@@ -74,14 +70,12 @@ type TransferDetailDTO struct {
 	Deliveries []TransferDeliveryDTO   `json:"deliveries"`
 }
 
-// Detail produk
 type TransferDetailItemDTO struct {
 	Id       uint64           `json:"id"`
-	Proudct  ProductSimpleDTO `json:"product"`
+	Product  ProductSimpleDTO `json:"product"`
 	Quantity float64          `json:"quantity"`
 }
 
-// Delivery ekspedisi
 type TransferDeliveryDTO struct {
 	Id                uint64                    `json:"id"`
 	Supplier          SupplierSimpleDTO         `json:"supplier"`
@@ -91,6 +85,7 @@ type TransferDeliveryDTO struct {
 	ShippingCostItem  float64                   `json:"shipping_cost_item"`
 	ShippingCostTotal float64                   `json:"shipping_cost_total"`
 	Items             []TransferDeliveryItemDTO `json:"items"`
+	Documents         []DocumentDTO             `json:"documents"`
 }
 
 type TransferDeliveryItemDTO struct {
@@ -99,10 +94,7 @@ type TransferDeliveryItemDTO struct {
 	Quantity              float64 `json:"quantity"`
 }
 
-// === Mapper Functions ===
-
 func ToTransferRelationDTO(e entity.StockTransfer) TransferRelationDTO {
-
 	var sourceWarehouse *WarehouseDetailDTO
 	if e.FromWarehouse != nil && e.FromWarehouse.Id != 0 {
 		sourceWarehouse = toWarehouseDetailDTO(e.FromWarehouse)
@@ -148,7 +140,7 @@ func toWarehouseDetailDTO(w *entity.Warehouse) *WarehouseDetailDTO {
 		Id:       w.Id,
 		Name:     w.Name,
 		Location: toLocationDTO(w.Location),
-		Area:     toAreaDTO(&w.Area), // Ambil area langsung dari warehouse (area_id)
+		Area:     toAreaDTO(&w.Area),
 	}
 }
 
@@ -158,22 +150,21 @@ func ToTransferListDTO(e entity.StockTransfer) TransferListDTO {
 		mapped := userDTO.ToUserRelationDTO(*e.CreatedUser)
 		createdUser = &mapped
 	}
-	// Map details
+
 	var details []TransferDetailItemDTO
 	for _, d := range e.Details {
 		details = append(details, TransferDetailItemDTO{
 			Id: d.Id,
-			Proudct: ProductSimpleDTO{
+			Product: ProductSimpleDTO{
 				Id:   d.Product.Id,
 				Name: d.Product.Name,
 			},
 			Quantity: d.Quantity,
 		})
 	}
-	// Map deliveries
+
 	var deliveries []TransferDeliveryDTO
 	for _, del := range e.Deliveries {
-		// Map delivery items
 		var items []TransferDeliveryItemDTO
 		for _, item := range del.Items {
 			items = append(items, TransferDeliveryItemDTO{
@@ -183,6 +174,17 @@ func ToTransferListDTO(e entity.StockTransfer) TransferListDTO {
 			})
 		}
 
+		var documents []DocumentDTO
+		for _, doc := range del.Documents {
+			documents = append(documents, DocumentDTO{
+				Id:   doc.Id,
+				Path: doc.Path,
+				Name: doc.Name,
+				Ext:  doc.Ext,
+				Size: doc.Size,
+			})
+		}
+
 		deliveries = append(deliveries, TransferDeliveryDTO{
 			Id: del.Id,
 			Supplier: SupplierSimpleDTO{
@@ -195,16 +197,7 @@ func ToTransferListDTO(e entity.StockTransfer) TransferListDTO {
 			ShippingCostItem:  del.ShippingCostItem,
 			ShippingCostTotal: del.ShippingCostTotal,
 			Items:             items,
-		})
-	}
-	var documents []DocumentDTO
-	for _, doc := range e.Documents {
-		documents = append(documents, DocumentDTO{
-			Id:   doc.Id,
-			Path: doc.Path,
-			Name: doc.Name,
-			Ext:  doc.Ext,
-			Size: doc.Size,
+			Documents:         documents,
 		})
 	}
 
@@ -215,7 +208,6 @@ func ToTransferListDTO(e entity.StockTransfer) TransferListDTO {
 		UpdatedAt:           e.UpdatedAt,
 		Details:             details,
 		Deliveries:          deliveries,
-		Documents:           documents,
 	}
 }
 
@@ -228,21 +220,31 @@ func ToTransferListDTOs(e []entity.StockTransfer) []TransferListDTO {
 }
 
 func ToTransferDetailDTO(e entity.StockTransfer) TransferDetailDTO {
-	// Map details
 	var details []TransferDetailItemDTO
 	for _, d := range e.Details {
 		details = append(details, TransferDetailItemDTO{
 			Id: d.Id,
-			Proudct: ProductSimpleDTO{
+			Product: ProductSimpleDTO{
 				Id:   d.Product.Id,
 				Name: d.Product.Name,
 			},
 			Quantity: d.Quantity,
 		})
 	}
-	// Map deliveries
+
 	var deliveries []TransferDeliveryDTO
 	for _, del := range e.Deliveries {
+		var documents []DocumentDTO
+		for _, doc := range del.Documents {
+			documents = append(documents, DocumentDTO{
+				Id:   doc.Id,
+				Path: doc.Path,
+				Name: doc.Name,
+				Ext:  doc.Ext,
+				Size: doc.Size,
+			})
+		}
+
 		deliveries = append(deliveries, TransferDeliveryDTO{
 			Id: del.Id,
 			Supplier: SupplierSimpleDTO{
@@ -254,8 +256,10 @@ func ToTransferDetailDTO(e entity.StockTransfer) TransferDetailDTO {
 			DocumentNumber:    del.DocumentNumber,
 			ShippingCostItem:  del.ShippingCostItem,
 			ShippingCostTotal: del.ShippingCostTotal,
+			Documents:         documents,
 		})
 	}
+
 	return TransferDetailDTO{
 		TransferListDTO: ToTransferListDTO(e),
 		Details:         details,