1 files changed, 46 insertions, 0 deletions

diff --git a/app/graphql/mutations/issues/set_escalation_status.rb b/app/graphql/mutations/issues/set_escalation_status.rb
new file mode 100644
index 00000000000..6073b73277b
--- /dev/null
+++ b/app/graphql/mutations/issues/set_escalation_status.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+module Mutations
+  module Issues
+    class SetEscalationStatus < Base
+      graphql_name 'IssueSetEscalationStatus'
+
+      argument :status, Types::IncidentManagement::EscalationStatusEnum,
+               required: true,
+               description: 'Set the escalation status.'
+
+      def resolve(project_path:, iid:, status:)
+        issue = authorized_find!(project_path: project_path, iid: iid)
+        project = issue.project
+
+        authorize_escalation_status!(project)
+        check_feature_availability!(project, issue)
+
+        ::Issues::UpdateService.new(
+          project: project,
+          current_user: current_user,
+          params: { escalation_status: { status: status } }
+        ).execute(issue)
+
+        {
+          issue: issue,
+          errors: errors_on_object(issue)
+        }
+      end
+
+      private
+
+      def authorize_escalation_status!(project)
+        return if Ability.allowed?(current_user, :update_escalation_status, project)
+
+        raise_resource_not_available_error!
+      end
+
+      def check_feature_availability!(project, issue)
+        return if Feature.enabled?(:incident_escalations, project) && issue.supports_escalation?
+
+        raise Gitlab::Graphql::Errors::ResourceNotAvailable, 'Feature unavailable for provided issue'
+      end
+    end
+  end
+end