Fixed GetProducts

repositories/productRepository.go

@@ -685,10 +685,29 @@ func (r *productRepository) GetProducts(params models.ProductFilter) ([]models.P
 		)
 	}
 
+	// productstock/quantity are correlated subqueries computing the live
+	// SUM(in)-SUM(out) balance from productstocks, scoped to params.LocationID
+	// (0 if the caller didn't scope to a store, matching nothing so both come
+	// back zero). quantity is placed after `a.*` so it overwrites the static,
+	// never-decremented products.quantity column — same fix as
+	// GetLocationProducts/GetProductByVariant, otherwise this endpoint would
+	// keep showing stock that never reduces after an order.
 	err := q.Select(`
 		a.*,
-		COALESCE(pd.discountvalue, 0) AS discountvalue
-	`).Find(&products).Error
+		COALESCE(pd.discountvalue, 0) AS discountvalue,
+		COALESCE((
+			SELECT SUM(CASE WHEN LOWER(ps.stocktype) = 'in' THEN ps.quantity ELSE 0 END) -
+			       SUM(CASE WHEN LOWER(ps.stocktype) = 'out' THEN ps.quantity ELSE 0 END)
+			FROM productstocks ps
+			WHERE ps.productid = a.productid AND ps.tenantid = a.tenantid AND ps.locationid = ?
+		), 0) AS productstock,
+		COALESCE((
+			SELECT SUM(CASE WHEN LOWER(ps.stocktype) = 'in' THEN ps.quantity ELSE 0 END) -
+			       SUM(CASE WHEN LOWER(ps.stocktype) = 'out' THEN ps.quantity ELSE 0 END)
+			FROM productstocks ps
+			WHERE ps.productid = a.productid AND ps.tenantid = a.tenantid AND ps.locationid = ?
+		), 0) AS quantity
+	`, params.LocationID, params.LocationID).Find(&products).Error
 
 	return products, err
 }