import { existsSync } from 'node:fs'
import { sendPathWithRange } from '~/server/utils/httpRange'
import { musicContentType } from '~/utils/music'

export default defineEventHandler((event) => {
  const { owner } = assertLibraryOwner(event)
  const id = String(getRouterParam(event, 'id') || '')
  const track = getTrack(owner, id)
  assertFolderAccess(event, track.folderId)
  const path = trackAudioPath(owner, track.id, track.ext)
  if (!existsSync(path)) {
    throw createError({ statusCode: 404, statusMessage: 'Audio file is missing' })
  }
  const ext = track.ext || 'flac'
  return sendPathWithRange(event, path, musicContentType(ext), {
    'Content-Disposition': `inline; filename="${safeDownloadName(track.name)}.${ext}"`,
    'Cache-Control': 'private, max-age=0, must-revalidate'
  })
})