lookup endpoint updated

models/scan.go

@@ -56,13 +56,47 @@ type ScanStore struct {
 // store: the matched product itself, or one of its sizes. Each is a real
 // product row with its own price and stock, which is why they are flat.
 type ScanOption struct {
-	Productid   int     `json:"productid"`
-	Productname string  `json:"productname"`
-	Size        string  `json:"size"` // "500 g", "1 kg" — unitvalue + productunit
-	Price       float64 `json:"price"`
-	Stock       int     `json:"stock"`
-	Available   bool    `json:"available"`
-	Image       string  `json:"image,omitempty"`
+	// Where this is sold.
+	//
+	// On the option and not only on the enclosing store, because an order line
+	// carries both and the app would otherwise have to reach back up the
+	// response to build one. `Locationid` is the real outlet and never 0.
+	Tenantid   int `json:"tenantid"`
+	Locationid int `json:"locationid"`
+
+	Productid   int    `json:"productid"`
+	Productname string `json:"productname"`
+
+	// The pack size, both ways round.
+	//
+	// `Size` is the printable "500 g" the app has always shown. The two parts
+	// are sent beside it because an order line needs the unit on its own, and
+	// pulling it back out of the label means parsing a string a shop typed.
+	Size        string `json:"size"`
+	Unitvalue   string `json:"unitvalue"`
+	Productunit string `json:"productunit"`
+
+	// What the customer pays: the outlet's own price, or the product's retail
+	// price where the outlet has not set one.
+	Price float64 `json:"price"`
+	// What the shop paid. NOT a price to charge — it is `products.productcost`,
+	// the same field the product screens return, and billing against it would
+	// sell at cost.
+	Productcost float64 `json:"productcost"`
+
+	// Carried on the order header, so the app has them without a second read.
+	Categoryid    int `json:"categoryid"`
+	Subcategoryid int `json:"subcategoryid"`
+
+	Stock     int  `json:"stock"`
+	Available bool `json:"available"`
+
+	// The same URL under both names: `image` is what this endpoint has always
+	// sent, `productimage` is what every other product response calls it and
+	// what an order line is built from.
+	Image        string `json:"image,omitempty"`
+	Productimage string `json:"productimage,omitempty"`
+
 	// Is this the product that matched, or a size hanging under it?
 	IsVariant   bool   `json:"is_variant"`
 	Variantname string `json:"variantname,omitempty"`