import { HttpStatusCode } from '@shared/models'
import cors from 'cors'
import express from 'express'
import { CONFIG } from '../initializers/config'
import { HLS_STREAMING_PLAYLIST_DIRECTORY, STATIC_MAX_AGE, STATIC_PATHS } from '../initializers/constants'

const staticRouter = express.Router()

// Cors is very important to let other servers access torrent and video files
staticRouter.use(cors())

// Videos path for webseed
staticRouter.use(
  STATIC_PATHS.WEBSEED,
  express.static(CONFIG.STORAGE.VIDEOS_DIR, { fallthrough: false }),
  handleStaticError
)
staticRouter.use(
  STATIC_PATHS.REDUNDANCY,
  express.static(CONFIG.STORAGE.REDUNDANCY_DIR, { fallthrough: false }),
  handleStaticError
)

// HLS
staticRouter.use(
  STATIC_PATHS.STREAMING_PLAYLISTS.HLS,
  express.static(HLS_STREAMING_PLAYLIST_DIRECTORY, { fallthrough: false }),
  handleStaticError
)

// Thumbnails path for express
const thumbnailsPhysicalPath = CONFIG.STORAGE.THUMBNAILS_DIR
staticRouter.use(
  STATIC_PATHS.THUMBNAILS,
  express.static(thumbnailsPhysicalPath, { maxAge: STATIC_MAX_AGE.SERVER, fallthrough: false }),
  handleStaticError
)

// ---------------------------------------------------------------------------

export {
  staticRouter
}

// ---------------------------------------------------------------------------

function handleStaticError (err: any, req: express.Request, res: express.Response, next: express.NextFunction) {
  const message = err.message || ''

  if (message.includes('ENOENT')) {
    return res.fail({
      status: err.status || HttpStatusCode.INTERNAL_SERVER_ERROR_500,
      message: err.message,
      type: err.name
    })
  }

  return next(err)
}