From 4369f22771c6c6f32fd459f4056de07da31aaa7c Mon Sep 17 00:00:00 2001
From: Beth Skurrie <beth@bethesque.com>
Date: Tue, 8 Oct 2019 17:27:54 +1100
Subject: [PATCH] feat(metrics): add revision count

---
 lib/pact_broker/metrics/service.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/pact_broker/metrics/service.rb b/lib/pact_broker/metrics/service.rb
index 67af5bc7c..3bb06b137 100644
--- a/lib/pact_broker/metrics/service.rb
+++ b/lib/pact_broker/metrics/service.rb
@@ -34,6 +34,9 @@ def metrics
           pactVersions: {
             count: PactBroker::Pacts::PactVersion.count
           },
+          pactRevisions: {
+            counts: pact_revision_counts
+          },
           verificationResults: {
             count: PactBroker::Domain::Verification.count,
             first: format_date_time(PactBroker::Domain::Verification.order(:id).first.created_at),
@@ -59,6 +62,13 @@ def metrics
           }
         }
       end
+
+      def pact_revision_counts
+        query = "select revision_count as number_of_revisions, count(consumer_version_id) as consumer_version_count
+          from (select consumer_version_id, count(*) as revision_count from pact_publications group by consumer_version_id) foo
+          group by revision_count"
+        PactBroker::Pacts::PactPublication.db[query].all.each_with_object({}) { |row, hash| hash[row[:number_of_revisions]] = row[:consumer_version_count] }
+      end
     end
   end
 end