@sanity/scheduled-publishing/src/documentActions.ts

> [!IMPORTANT] > As of [v3.39.0](https://www.sanity.io/changelog/e6013ee5-8214-4e03-9593-f7b19124b8a3) of Sanity Studio, this plugin has been deprecated and the Scheduled Publishing functionality has been moved into the core studio package. > Read more an

import {DocumentActionComponent} from 'sanity'
import {ScheduleAction} from './documentActions/schedule'

type Action = DocumentActionComponent

export default function resolveDocumentActions(existingActions: Action[]): Action[] {
  // Add schedule action after default publish action
  const index = existingActions.findIndex((a) => a.action === 'publish')
  if (index < 0) {
    return [ScheduleAction, ...existingActions]
  }
  return [
    ...existingActions.slice(0, index + 1),
    ScheduleAction,
    ...existingActions.slice(index + 1),
  ]
}