1 files changed, 51 insertions, 0 deletions
diff --git a/app/services/incident_management/timeline_events/create_service.rb b/app/services/incident_management/timeline_events/create_service.rb
new file mode 100644
index 00000000000..7d287e1bd82
--- /dev/null
+++ b/app/services/incident_management/timeline_events/create_service.rb
@@ -0,0 +1,51 @@
+# frozen_string_literal: true
+
+module IncidentManagement
+  module TimelineEvents
+    DEFAULT_ACTION = 'comment'
+
+    class CreateService < TimelineEvents::BaseService
+      def initialize(incident, user, params)
+        @project = incident.project
+        @incident = incident
+        @user = user
+        @params = params
+      end
+
+      def execute
+        return error_no_permissions unless allowed?
+
+        timeline_event_params = {
+          project: project,
+          incident: incident,
+          author: user,
+          note: params[:note],
+          action: params.fetch(:action, DEFAULT_ACTION),
+          note_html: params[:note_html].presence || params[:note],
+          occurred_at: params[:occurred_at],
+          promoted_from_note: params[:promoted_from_note]
+        }
+
+        timeline_event = IncidentManagement::TimelineEvent.new(timeline_event_params)
+
+        if timeline_event.save
+          add_system_note(timeline_event)
+
+          success(timeline_event)
+        else
+          error_in_save(timeline_event)
+        end
+      end
+
+      private
+
+      attr_reader :project, :user, :incident, :params
+
+      def add_system_note(timeline_event)
+        return unless Feature.enabled?(:incident_timeline, project)
+
+        SystemNoteService.add_timeline_event(timeline_event)
+      end
+    end
+  end
+end