types(feat) create product type

types/poduct.go

@@ -0,0 +1,62 @@
+/**
+ * file: types/product.go
+ * author: Theo Technicguy
+ * license: Apache 2.0
+ *
+ * Product type and functions
+ */
+
+package types
+
+type TTL struct {
+	Normal  uint `json:"normal"`
+	Fridge  uint `json:"fridge"`
+	Freezer uint `json:"freezer"`
+}
+
+type Product struct {
+	Id   uint   `json:"id"`
+	EAN  uint   `json:"ean"`
+	Name string `json:"name"`
+	TTL  TTL    `json:"ttl"`
+	Tags []Tag  `json:"tags"`
+}
+
+func (t *TTL) ValidTTL() bool {
+	if t.Normal == 0 {
+		return true
+	}
+
+	var fridge, freezer bool
+
+	if t.Fridge > 0 {
+		fridge = t.Normal < t.Fridge
+	} else {
+		fridge = true
+	}
+
+	if t.Freezer > 0 {
+		freezer = t.Normal < t.Freezer
+	} else {
+		freezer = true
+	}
+	return fridge && freezer
+}
+
+func (t *TTL) Valid() bool {
+	return t.ValidTTL()
+}
+
+func (p *Product) ValidName() bool {
+	return p.Name != ""
+}
+
+func (p *Product) Valid() bool {
+	for _, tag := range p.Tags {
+		if !tag.Valid() {
+			return false
+		}
+	}
+
+	return p.TTL.Valid() && p.ValidName()
+}