wip: fix route update via manifest

Author: a18e

app/actions/manifest_route_update.rb

@@ -1,5 +1,6 @@
 require 'cloud_controller/app_manifest/manifest_route'
 require 'actions/route_create'
+require 'actions/route_update'
 
 module VCAP::CloudController
   class ManifestRouteUpdate
@@ -94,12 +95,10 @@ def find_or_create_valid_route(app, manifest_route, user_audit_info)
             )
           elsif route[:options] != manifest_route[:options]
             message = RouteUpdateMessage.new({
-                                               'host' => host,
-                                               'path' => manifest_route[:path],
-                                               'port' => manifest_route[:port],
                                                'options' => manifest_route[:options]
                                              })
-            route = RouteUpdate.update(route, message)
+            route = RouteUpdate.new.update(route:, message:)
+
           elsif route.space.guid != app.space_guid
             raise InvalidRoute.new('Routes cannot be mapped to destinations in different spaces')
           end

app/presenters/v3/app_manifest_presenters/route_properties_presenter.rb

@@ -10,7 +10,10 @@ def to_hash(route_mappings:, app:, **_)
                 protocol: route_mapping.protocol
               }
 
-              route_hash[:options]['loadbalancing-algorithm'] = route_mapping.route.options['lb_algo'] if route_mapping.route.options && route_mapping.route.options['lb_algo']
+              if route_mapping.route.options
+                route_hash[:options] = {}
+                route_hash[:options]['loadbalancing-algorithm'] = route_mapping.route.options['lb_algo'] if route_mapping.route.options['lb_algo']
+              end
 
               route_hash
             end