import { existsSync, readFileSync } from 'node:fs'

export default defineEventHandler((event) => {
  const { owner } = assertLibraryOwner(event)
  const id = String(getRouterParam(event, 'id') || '')
  const clip = getClip(owner, id)
  assertFolderAccess(event, clip.folderId)
  const path = clipVideoPath(owner, clip.id)
  if (!existsSync(path)) {
    throw createError({ statusCode: 404, statusMessage: 'Video file is missing' })
  }
  setHeader(event, 'Content-Type', 'video/mp4')
  setHeader(event, 'Content-Disposition', `inline; filename="${clip.id}.mp4"`)
  setHeader(event, 'Cache-Control', 'private, max-age=3600')
  return readFileSync(path)
})