1 files changed, 38 insertions, 0 deletions
diff --git a/app/services/incident_management/incidents/update_severity_service.rb b/app/services/incident_management/incidents/update_severity_service.rb
new file mode 100644
index 00000000000..5b150f3f02e
--- /dev/null
+++ b/app/services/incident_management/incidents/update_severity_service.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module IncidentManagement
+  module Incidents
+    class UpdateSeverityService < BaseService
+      def initialize(issuable, current_user, severity)
+        super(issuable.project, current_user)
+
+        @issuable = issuable
+        @severity = severity.to_s.downcase
+        @severity = IssuableSeverity::DEFAULT unless IssuableSeverity.severities.key?(@severity)
+      end
+
+      def execute
+        return unless issuable.incident?
+
+        update_severity!
+        add_system_note
+      end
+
+      private
+
+      attr_reader :issuable, :severity
+
+      def issuable_severity
+        issuable.issuable_severity || issuable.build_issuable_severity(issue_id: issuable.id)
+      end
+
+      def update_severity!
+        issuable_severity.update!(severity: severity)
+      end
+
+      def add_system_note
+        ::IncidentManagement::AddSeveritySystemNoteWorker.perform_async(issuable.id, current_user.id)
+      end
+    end
+  end
+end