init project

internal/constants/product/product.go

@@ -0,0 +1,58 @@
+package product
+
+type ProductStatus string
+
+const (
+	Active   ProductStatus = "Active"
+	Inactive ProductStatus = "Inactive"
+)
+
+func (b ProductStatus) toString() string {
+	return string(b)
+}
+
+type ProductType string
+
+const (
+	Food     ProductType = "FOOD"
+	Beverage ProductType = "BEVERAGE"
+)
+
+func (b ProductType) toString() string {
+	return string(b)
+}
+
+type ProductStock string
+
+const (
+	Available   ProductStock = "AVAILABLE"
+	Unavailable ProductStock = "UNAVAILABLE"
+)
+
+func (b ProductStock) toString() string {
+	return string(b)
+}
+
+func (i *ProductStock) IsAvailable() bool {
+	if i == nil {
+		return false
+	}
+
+	if *i == Available {
+		return true
+	}
+
+	return false
+}
+
+func (i *ProductStock) IsUnavailable() bool {
+	if i == nil {
+		return false
+	}
+
+	if *i == Unavailable {
+		return true
+	}
+
+	return false
+}