From a0065a7d8aa51f4cc459684a39d3840e1ed1b2b7 Mon Sep 17 00:00:00 2001
From: Brandon Dunne <brandondunne@hotmail.com>
Date: Tue, 21 Aug 2018 15:48:08 -0400
Subject: [PATCH] Add best fit API for transformations moving vms to openstack

https://trello.com/c/b90ZCyNm/183-extend-cf-api-for-mapping-of-osp-flavors-and-security-groups
---
 .../api/transformation_mappings_controller.rb | 13 ++++++
 config/api.yml                                |  2 +
 spec/requests/transformation_mappings_spec.rb | 40 +++++++++++++++++++
 3 files changed, 55 insertions(+)

diff --git a/app/controllers/api/transformation_mappings_controller.rb b/app/controllers/api/transformation_mappings_controller.rb
index af30ae87b6..3de93163f4 100644
--- a/app/controllers/api/transformation_mappings_controller.rb
+++ b/app/controllers/api/transformation_mappings_controller.rb
@@ -22,6 +22,19 @@ def validate_vms_resource(type, id, data = {})
       end
     end
 
+    def vm_flavor_fit_resource(_type, _id, data)
+      data["mappings"].collect do |mapping|
+        source      = Api::Utils.resource_search_by_href_slug(mapping["source_href"])
+        destination = Api::Utils.resource_search_by_href_slug(mapping["destination_href"])
+        fit         = TransformationMapping::CloudBestFit.new(source, destination)
+        {
+          :source_href => mapping["source_href"],
+          :best_fit    => Api::Utils.build_href_slug(Flavor, fit.best_fit_flavor.try(:id)),
+          :all_fit     => fit.available_fit_flavors.collect { |f| Api::Utils.build_href_slug(Flavor, f.id) }
+        }
+      end
+    end
+
     private
 
     def create_mapping_items(items)
diff --git a/config/api.yml b/config/api.yml
index 36f2112fea..8c82be7670 100644
--- a/config/api.yml
+++ b/config/api.yml
@@ -3366,6 +3366,8 @@
         :identifier: transformation_mapping_new
       - :name: delete
         :identifier: transformation_mapping_delete
+      - :name: vm_flavor_fit
+        :identifier: transformation_mapping_new
     :resource_actions:
       :get:
       - :name: read
diff --git a/spec/requests/transformation_mappings_spec.rb b/spec/requests/transformation_mappings_spec.rb
index bc8736038b..7862de36db 100644
--- a/spec/requests/transformation_mappings_spec.rb
+++ b/spec/requests/transformation_mappings_spec.rb
@@ -46,6 +46,46 @@
     end
   end
 
+  describe "POST /api/transformation_mappings/" do
+    context "with an appropriate role" do
+      def href_slug(obj)
+        Api::Utils.build_href_slug(obj.class, obj.id)
+      end
+
+      it "can map vms to openstack flavors" do
+        openstack = FactoryGirl.create(:ems_openstack)
+        _flavor1  = openstack.flavors.create!(:cpus => 1, :memory => 1.gigabytes)
+        flavor2   = openstack.flavors.create!(:cpus => 2, :memory => 2.gigabytes)
+        flavor3   = openstack.flavors.create!(:cpus => 4, :memory => 4.gigabytes)
+        vm1       = FactoryGirl.create(:vm_vmware, :hardware => FactoryGirl.create(:hardware, :cpu1x2, :ram1GB))
+        vm2       = FactoryGirl.create(:vm_vmware, :hardware => FactoryGirl.create(:hardware, :cpu2x2, :ram1GB))
+        vm3       = FactoryGirl.create(:vm_vmware, :hardware => FactoryGirl.create(:hardware, :cpu4x2, :ram1GB))
+
+        api_basic_authorize(action_identifier(:transformation_mappings, :vm_flavor_fit, :collection_actions))
+
+        request = {
+          "action"   => "vm_flavor_fit",
+          "mappings" => [
+            {"source_href" => href_slug(vm1), "destination_href" => href_slug(openstack)},
+            {"source_href" => href_slug(vm2), "destination_href" => href_slug(openstack)},
+            {"source_href" => href_slug(vm3), "destination_href" => href_slug(openstack)},
+          ]
+        }
+
+        post(api_transformation_mappings_url, :params => request)
+
+        expect(response.parsed_body["results"]).to match_array(
+          [
+            {"source_href" => href_slug(vm1), "best_fit" => href_slug(flavor2), "all_fit" => [href_slug(flavor2), href_slug(flavor3)]},
+            {"source_href" => href_slug(vm2), "best_fit" => href_slug(flavor3), "all_fit" => [href_slug(flavor3)]},
+            {"source_href" => href_slug(vm3), "best_fit" => nil, "all_fit" => []},
+          ]
+        )
+        expect(response).to have_http_status(:ok)
+      end
+    end
+  end
+
   describe "POST /api/transformation_mappings" do
     let(:cluster) { FactoryGirl.create(:ems_cluster) }
     let(:cluster2) { FactoryGirl.create(:ems_cluster) }