orders

services/productVisibility.go

@@ -51,3 +51,37 @@ func InStockOnly(products []models.Products, locationID int) []models.Products {
 	}
 	return inStock
 }
+
+// InStockOnlyGrouped is InStockOnly for the grouped shape `getallproducts`
+// returns: a tenant with its products, rather than a flat list.
+//
+// ── Why this one does NOT skip when locationID is 0 ──────────────────────────
+//
+// InStockOnly above returns early without an outlet, because the query behind
+// it computes stock scoped to that outlet and answers 0 for everything when
+// there is none — filtering that would empty the catalogue rather than filter
+// it. FetchFilteredProducts is built differently: its stock subquery reads
+// `(? = 0 OR locationid = ?)`, so with no outlet it aggregates the ledger across
+// the tenant's outlets and still returns a real number. Measured 2026-09-02 on
+// R mart: 24 products unscoped, 20 with a live balance and 4 at zero.
+//
+// So the number is trustworthy either way, and the rule can be applied either
+// way: a shop that holds none of something anywhere is not offering it.
+//
+// A tenant left with no sellable products keeps its group, with an empty list.
+// Dropping the group would tell the app the shop does not exist, which is a
+// different and wrong statement — the shop is open, it has nothing on the shelf.
+func InStockOnlyGrouped(groups []models.Tenantproducts) []models.Tenantproducts {
+	out := make([]models.Tenantproducts, 0, len(groups))
+	for _, group := range groups {
+		kept := make([]models.Products, 0, len(group.Products))
+		for _, product := range group.Products {
+			if product.Productstock > 0 {
+				kept = append(kept, product)
+			}
+		}
+		group.Products = kept
+		out = append(out, group)
+	}
+	return out
+}