Add comments

Author: minh-de-rien

packages/transition-frontend/src/components/forms/schedules/TransitScheduleButton.tsx

@@ -58,25 +58,18 @@ const TransitScheduleButton: React.FunctionComponent<ScheduleButtonProps> = (pro
     const serviceId = props.schedule.attributes.service_id;
     const periodsGroups = Preferences.get('transit.periods');
     const periodsGroupShortname = props.schedule.attributes.periods_group_shortname;
-    // Add defensive check before accessing the template
+    // Add defensive check before accessing the template, otherwise the interface breaks
     let periodsGroupName = '-';
     if (periodsGroupShortname) {
-        // Check if the template exists
         if (periodsGroups[periodsGroupShortname]) {
             periodsGroupName = periodsGroups[periodsGroupShortname].name[props.i18n.language];
         } else {
-            // The template doesn't exist anymore, set it to default
             props.schedule.set('periods_group_shortname', 'default');
-
-            // If we can save right away, do so (optional)
-            // Try to save the change silently
             try {
                 props.schedule.save(serviceLocator.socketEventManager);
             } catch (e) {
                 console.warn('Could not save schedule with updated template', e);
             }
-
-            // Use default template name if it exists
             if (periodsGroups['default'] && periodsGroups['default'].name) {
                 periodsGroupName = periodsGroups['default'].name[props.i18n.language];
             }