Track resolving a thread through a new issue action

MR: gitlab.com/gitlab-org/gitlab/-/merge_requests/69879
Issue: gitlab.com/gitlab-org/gitlab/-/issues/339513

Changelog: added

app/controllers/projects/issues_controller.rb

@@ -117,7 +117,11 @@ class Projects::IssuesController < Projects::ApplicationController
     @issue = @noteable = service.execute
 
     @merge_request_to_resolve_discussions_of = service.merge_request_to_resolve_discussions_of
-    @discussion_to_resolve = service.discussions_to_resolve.first if params[:discussion_to_resolve]
+
+    if params[:discussion_to_resolve]
+      Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter.track_resolve_thread_in_issue_action(user: current_user)
+      @discussion_to_resolve = service.discussions_to_resolve.first
+    end
 
     respond_with(@issue)
   end

config/metrics/aggregates/code_review.yml

@@ -66,6 +66,7 @@
     - 'i_code_review_user_load_conflict_ui'
     - 'i_code_review_user_resolve_conflict'
     - 'i_code_review_user_searches_diff'
+    - 'i_code_review_user_resolve_thread_in_issue'
 - name: code_review_category_monthly_active_users
   operator: OR
   source: redis
@@ -124,6 +125,7 @@
     - 'i_code_review_user_load_conflict_ui'
     - 'i_code_review_user_resolve_conflict'
     - 'i_code_review_user_searches_diff'
+    - 'i_code_review_user_resolve_thread_in_issue'
 - name: code_review_extension_category_monthly_active_users
   operator: OR
   source: redis

config/metrics/counts_28d/20210908150458_i_code_review_user_resolve_thread_in_issue_monthly.yml

+---
+key_path: redis_hll_counters.code_review.i_code_review_user_resolve_thread_in_issue_monthly
+name: resolve_thread_in_issue
+description: The number of users who resolve a thread in a new issue through the MR page monthly
+product_section: dev
+product_stage: create
+product_group: group::code review
+product_category: code_review
+value_type: number
+status: active
+milestone: "14.3"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/69879
+time_frame: 28d
+data_source: redis_hll
+data_category: optional
+instrumentation_class: RedisHLLMetric
+options:
+  events:
+    - i_code_review_user_resolve_thread_in_issue
+performance_indicator_type: []
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210908151645_i_code_review_user_resolve_thread_in_issue_weekly.yml

+---
+key_path: redis_hll_counters.code_review.i_code_review_user_resolve_thread_in_issue_weekly
+name: resolve_thread_in_issue
+description: The number of users who resolve a thread in a new issue through the MR page weekly
+product_section: dev
+product_stage: create
+product_group: group::code review
+product_category: code_review
+value_type: number
+status: active
+milestone: "14.3"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/69879
+time_frame: 7d
+data_source: redis_hll
+data_category: optional
+instrumentation_class: RedisHLLMetric
+options:
+  events:
+    - i_code_review_user_resolve_thread_in_issue
+performance_indicator_type: []
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate

lib/gitlab/usage_data_counters/known_events/code_review_events.yml

@@ -245,3 +245,7 @@
   redis_slot: code_review
   category: code_review
   aggregation: weekly
+- name: i_code_review_user_resolve_thread_in_issue
+  redis_slot: code_review
+  category: code_review
+  aggregation: weekly

lib/gitlab/usage_data_counters/merge_request_activity_unique_counter.rb

@@ -48,6 +48,7 @@ module Gitlab
       MR_LABELS_CHANGED_ACTION = 'i_code_review_user_labels_changed'
       MR_LOAD_CONFLICT_UI_ACTION = 'i_code_review_user_load_conflict_ui'
       MR_RESOLVE_CONFLICT_ACTION = 'i_code_review_user_resolve_conflict'
+      MR_RESOLVE_THREAD_IN_ISSUE_ACTION = 'i_code_review_user_resolve_thread_in_issue'
 
       class << self
         def track_mr_diffs_action(merge_request:)
@@ -214,6 +215,10 @@ module Gitlab
           track_unique_action_by_user(MR_RESOLVE_CONFLICT_ACTION, user)
         end
 
+        def track_resolve_thread_in_issue_action(user:)
+          track_unique_action_by_user(MR_RESOLVE_THREAD_IN_ISSUE_ACTION, user)
+        end
+
         private
 
         def track_unique_action_by_merge_request(action, merge_request)

spec/controllers/projects/issues_controller_spec.rb

@@ -301,6 +301,8 @@ RSpec.describe Projects::IssuesController do
       it 'fills in an issue for a discussion' do
         note = create(:note_on_merge_request, project: project)
 
+        expect(Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter).to receive(:track_resolve_thread_in_issue_action).with(user: user)
+
         get :new, params: { namespace_id: project.namespace.path, project_id: project, merge_request_to_resolve_discussions_of: note.noteable.iid, discussion_to_resolve: note.discussion_id }
 
         expect(assigns(:issue).title).not_to be_empty

spec/lib/gitlab/usage_data_counters/merge_request_activity_unique_counter_spec.rb

@@ -408,4 +408,12 @@ RSpec.describe Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter, :cl
       let(:action) { described_class::MR_RESOLVE_CONFLICT_ACTION }
     end
   end
+
+  describe '.track_resolve_thread_in_issue_action' do
+    subject { described_class.track_resolve_thread_in_issue_action(user: user) }
+
+    it_behaves_like 'a tracked merge request unique event' do
+      let(:action) { described_class::MR_RESOLVE_THREAD_IN_ISSUE_ACTION }
+    end
+  end
 end