cleanup

cmd/cart/mutation_set_pickup_point.go

@@ -49,3 +49,14 @@ func SetPickupPoint(g *CartGrain, m *messages.SetPickupPoint) error {
 	}
 	return fmt.Errorf("SetPickupPoint: delivery id %d not found", m.DeliveryId)
 }
+
+func ClearCart(g *CartGrain, m *messages.ClearCartRequest) error {
+	if m == nil {
+		return fmt.Errorf("ClearCart: nil payload")
+	}
+	// maybe check if payment is done?
+	g.Deliveries = g.Deliveries[:0]
+	g.Items = g.Items[:0]
+	g.UpdateTotals()
+	return nil
+}