feat: add printer types

internal/mappers/product_mapper.go

@@ -24,7 +24,7 @@ func ProductEntityToModel(entity *entities.Product) *models.Product {
 		Cost:           entity.Cost,
 		BusinessType:   constants.BusinessType(entity.BusinessType),
 		ImageURL:       entity.ImageURL,
-		PrinterType:    entity.PrinterType,
+		PrinterTypes:   entity.GetPrinterTypes(),
 		UnitID:         entity.UnitID,
 		SellBy:         entity.SellBy,
 		HasIngredients: entity.HasIngredients,
@@ -51,7 +51,7 @@ func ProductModelToEntity(model *models.Product) *entities.Product {
 		Cost:           model.Cost,
 		BusinessType:   string(model.BusinessType),
 		ImageURL:       model.ImageURL,
-		PrinterType:    model.PrinterType,
+		PrinterTypes:   entities.StringSlice(model.PrinterTypes),
 		UnitID:         model.UnitID,
 		SellBy:         model.SellBy,
 		HasIngredients: model.HasIngredients,
@@ -77,11 +77,6 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		businessType = string(req.BusinessType)
 	}
 
-	printerType := "kitchen"
-	if req.PrinterType != nil && *req.PrinterType != "" {
-		printerType = *req.PrinterType
-	}
-
 	sellBy := constants.SellByUnit
 	if constants.IsValidSellBy(req.SellBy) {
 		sellBy = req.SellBy
@@ -92,7 +87,7 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		metadata = entities.Metadata(req.Metadata)
 	}
 
-	return &entities.Product{
+	product := &entities.Product{
 		OrganizationID: req.OrganizationID,
 		CategoryID:     req.CategoryID,
 		SKU:            req.SKU,
@@ -102,12 +97,18 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		Cost:           cost,
 		BusinessType:   businessType,
 		ImageURL:       req.ImageURL,
-		PrinterType:    printerType,
 		UnitID:         req.UnitID,
 		SellBy:         sellBy,
 		Metadata:       metadata,
 		IsActive:       true, // Default to active
 	}
+
+	product.SetPrinterTypes(req.PrinterTypes)
+	if len(product.PrinterTypes) == 0 {
+		product.SetPrinterTypes([]string{"kitchen"})
+	}
+
+	return product
 }
 
 func ProductEntityToResponse(entity *entities.Product) *models.ProductResponse {
@@ -152,7 +153,7 @@ func ProductEntityToResponse(entity *entities.Product) *models.ProductResponse {
 		Cost:           entity.Cost,
 		BusinessType:   constants.BusinessType(entity.BusinessType),
 		ImageURL:       entity.ImageURL,
-		PrinterType:    entity.PrinterType,
+		PrinterTypes:   entity.GetPrinterTypes(),
 		UnitID:         entity.UnitID,
 		SellBy:         entity.SellBy,
 		Metadata:       map[string]interface{}(entity.Metadata),
@@ -196,8 +197,8 @@ func UpdateProductEntityFromRequest(entity *entities.Product, req *models.Update
 		entity.ImageURL = req.ImageURL
 	}
 
-	if req.PrinterType != nil {
-		entity.PrinterType = *req.PrinterType
+	if req.PrinterTypes != nil {
+		entity.SetPrinterTypes(req.PrinterTypes)
 	}
 
 	if req.UnitID != nil {