feat(deployed versions): add endpoint to list deployed versions for a…

…n environment

lib/pact_broker/api/resources/deployed_versions_for_environment.rb

@@ -0,0 +1,54 @@
+require 'pact_broker/api/resources/base_resource'
+require 'pact_broker/api/decorators/versions_decorator'
+
+module PactBroker
+  module Api
+    module Resources
+      class DeployedVersionsForEnvironment < BaseResource
+        def content_types_accepted
+          [["application/json", :from_json]]
+        end
+
+        def content_types_provided
+          [["application/hal+json", :to_json]]
+        end
+
+        def allowed_methods
+          ["GET", "OPTIONS"]
+        end
+
+        def resource_exists?
+          !!environment
+        end
+
+        def to_json
+          decorator_class(:deployed_versions_decorator).new(deployed_versions).to_json(decorator_options(title: title))
+        end
+
+        def policy_name
+          :'versions::versions'
+        end
+
+        private
+
+        attr_reader :deployed_versions
+
+        def environment
+          @environment ||= environment_service.find(environment_uuid)
+        end
+
+        def deployed_versions
+          @deployed_versions ||= deployed_version_service.find_deployed_versions_for_environment(environment)
+        end
+
+        def environment_uuid
+          identifier_from_path[:environment_uuid]
+        end
+
+        def title
+          "Deployed versions for #{environment.display_name}"
+        end
+      end
+    end
+  end
+end

lib/pact_broker/api/resources/deployed_versions_for_version_and_environment.rb

@@ -1,5 +1,4 @@
 require 'pact_broker/api/resources/base_resource'
-require 'pact_broker/configuration'
 require 'pact_broker/api/decorators/versions_decorator'
 
 module PactBroker

lib/pact_broker/deployments/deployed_version.rb

@@ -35,6 +35,10 @@ def for_version_and_environment(version, environment)
           where(version_id: version.id, environment_id: environment.id)
         end
 
+        def for_environment(environment)
+          where(environment_id: environment.id)
+        end
+
         def order_by_date_desc
           order(Sequel.desc(:created_at), Sequel.desc(:id))
         end

lib/pact_broker/deployments/deployed_version_service.rb

@@ -28,6 +28,13 @@ def self.find_deployed_versions_for_version_and_environment(version, environment
           .all
       end
 
+      def self.find_deployed_versions_for_environment(environment)
+        DeployedVersion
+          .for_environment(environment)
+          .order_by_date_desc
+          .all
+      end
+
       def self.record_previous_version_undeployed(pacticipant, environment)
         DeployedVersion.last_deployed_version(pacticipant, environment)&.record_undeployed
       end