Implement validation logic to ProjectStage

- Introducting StageEvents to define the available events
- Define the event pairing rules, since some events are not compatible
- Express default Cycle Analytics stages with the event structure

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/gitlab/analytics/cycle_analytics/stage_events/merge_request_last_build_finished.rb b/lib/gitlab/analytics/cycle_analytics/stage_events/merge_request_last_build_finished.rb
new file mode 100644
index 00000000000..12d82fe2c62
--- /dev/null
+++ b/lib/gitlab/analytics/cycle_analytics/stage_events/merge_request_last_build_finished.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Analytics
+    module CycleAnalytics
+      module StageEvents
+        class MergeRequestLastBuildFinished < SimpleStageEvent
+          def self.name
+            s_("CycleAnalyticsEvent|Merge request last build finish time")
+          end
+
+          def self.identifier
+            :merge_request_last_build_finished
+          end
+
+          def object_type
+            MergeRequest
+          end
+        end
+      end
+    end
+  end
+end