add product inventory

internal/mappers/inventory_mapper.go

@@ -3,6 +3,7 @@ package mappers
 import (
 	"apskel-pos-be/internal/entities"
 	"apskel-pos-be/internal/models"
+	"github.com/google/uuid"
 )
 
 func InventoryEntityToModel(entity *entities.Inventory) *models.Inventory {
@@ -53,10 +54,16 @@ func InventoryEntityToResponse(entity *entities.Inventory) *models.InventoryResp
 		return nil
 	}
 
+	productName := ""
+	if entity.Product.ID != uuid.Nil {
+		productName = entity.Product.Name
+	}
+
 	return &models.InventoryResponse{
 		ID:           entity.ID,
 		OutletID:     entity.OutletID,
 		ProductID:    entity.ProductID,
+		ProductName:  productName,
 		Quantity:     entity.Quantity,
 		ReorderLevel: entity.ReorderLevel,
 		IsLowStock:   entity.IsLowStock(),

internal/models/inventory.go

@@ -36,6 +36,7 @@ type InventoryResponse struct {
 	ID           uuid.UUID
 	OutletID     uuid.UUID
 	ProductID    uuid.UUID
+	ProductName  string
 	Quantity     int
 	ReorderLevel int
 	IsLowStock   bool

internal/transformer/inventory_transformer.go

@@ -43,6 +43,10 @@ func InventoryModelResponseToResponse(inv *models.InventoryResponse) *contract.I
 		ReorderLevel: inv.ReorderLevel,
 		IsLowStock:   inv.IsLowStock,
 		UpdatedAt:    inv.UpdatedAt,
+		Product: &contract.ProductResponse{
+			ID:   inv.ProductID,
+			Name: inv.ProductName,
+		},
 	}
 }