import { z } from 'zod'

const schema = z.object({
  /** 指定作家；不传则使用章节已指派的作家 */
  writerAgentId: z.string().nullable().optional(),
  /** 修改意见 */
  feedback: z.string().optional(),
  /** true：在当前版本基础上按意见修改；false：重新写一版 */
  revise: z.boolean().optional()
})

export default defineEventHandler(async (event) => {
  const chapter = getChapter(param(event))
  const body = await readJson(event, schema)
  if (body.revise && !chapter.activeVersionId) throw createError({ statusCode: 400, message: '本章还没有可修改的版本' })
  runExclusive(chapter.projectId, `第${chapter.index}章写作`, signal => writeChapter(chapter.projectId, chapter.id, signal, body))
  return { started: true }
})