Add projects_incident_sla_enabled metric to usage data

We are skipping the time period last 28 days.

ee/app/models/ee/project.rb

@@ -135,6 +135,7 @@ module EE
       scope :with_github_service_pipeline_events, -> { joins(:github_service).merge(GithubService.pipeline_hooks) }
       scope :with_active_prometheus_service, -> { joins(:prometheus_service).merge(PrometheusService.active) }
       scope :with_enabled_error_tracking, -> { joins(:error_tracking_setting).where(project_error_tracking_settings: { enabled: true }) }
+      scope :with_enabled_incident_sla, -> { joins(:incident_management_setting).where(project_incident_management_settings: { sla_timer: true }) }
       scope :mirrored_with_enabled_pipelines, -> do
         joins(:project_feature).mirror.where(mirror_trigger_builds: true,
                                              project_features: { builds_access_level: ::ProjectFeature::ENABLED })

ee/changelogs/unreleased/255986-metric-incident-sla-enabled.yml

+---
+title: Add metric count for projects with incident sla enabled
+merge_request: 45092
+author:
+type: added

ee/lib/ee/gitlab/usage_data.rb

@@ -294,7 +294,8 @@ module EE
           super.merge({
             operations_dashboard_users_with_projects_added: distinct_count(UsersOpsDashboardProject.joins(:user).merge(::User.active).where(time_period), :user_id),
             projects_prometheus_active: distinct_count(::Project.with_active_prometheus_service.where(time_period), :creator_id),
-            projects_with_error_tracking_enabled: distinct_count(::Project.with_enabled_error_tracking.where(time_period), :creator_id)
+            projects_with_error_tracking_enabled: distinct_count(::Project.with_enabled_error_tracking.where(time_period), :creator_id),
+            projects_incident_sla_enabled: count(::Project.with_enabled_incident_sla)
           })
         end
 

ee/spec/factories/incident_management/project_incident_management_settings.rb

@@ -4,5 +4,10 @@ FactoryBot.modify do
   factory :project_incident_management_setting, class: 'IncidentManagement::ProjectIncidentManagementSetting' do
     sla_timer { false }
     sla_timer_minutes { nil }
+
+    trait :sla_enabled do
+      sla_timer { true }
+      sla_timer_minutes { 15 }
+    end
   end
 end

ee/spec/lib/ee/gitlab/usage_data_spec.rb

@@ -437,17 +437,20 @@ RSpec.describe Gitlab::UsageData do
         create(:users_ops_dashboard_project, user: user)
         create(:prometheus_service, project: project)
         create(:project_error_tracking_setting, project: project)
+        create(:project_incident_management_setting, :sla_enabled, project: project)
       end
 
       expect(described_class.usage_activity_by_stage_monitor({})).to include(
         operations_dashboard_users_with_projects_added: 2,
         projects_prometheus_active: 2,
-        projects_with_error_tracking_enabled: 2
+        projects_with_error_tracking_enabled: 2,
+        projects_incident_sla_enabled: 2
       )
       expect(described_class.usage_activity_by_stage_monitor(described_class.last_28_days_time_period)).to include(
         operations_dashboard_users_with_projects_added: 1,
         projects_prometheus_active: 1,
-        projects_with_error_tracking_enabled: 1
+        projects_with_error_tracking_enabled: 1,
+        projects_incident_sla_enabled: 2
       )
     end
   end

ee/spec/models/project_spec.rb

@@ -195,6 +195,16 @@ RSpec.describe Project do
       end
     end
 
+    describe '.with_enabled_incident_sla' do
+      it 'returns the correct project' do
+        project_with_enabled_incident_sla = create(:project_incident_management_setting, :sla_enabled).project
+        project_without_enabled_incident_sla = create(:project_incident_management_setting).project
+
+        expect(described_class.with_enabled_incident_sla).to include(project_with_enabled_incident_sla)
+        expect(described_class.with_enabled_incident_sla).not_to include(project_without_enabled_incident_sla)
+      end
+    end
+
     describe '.with_shared_runners_limit_enabled' do
       let(:public_cost_factor) { 1.0 }