server/helpers/image-utils.ts

   1 import { remove, rename } from 'fs-extra'
   2 import { convertWebPToJPG } from './ffmpeg-utils'
   3 import { logger } from './logger'
   4
   5 const Jimp = require('jimp')
   6
   7 async function processImage (
   8   path: string,
   9   destination: string,
  10   newSize: { width: number, height: number },
  11   keepOriginal = false
  12 ) {
  13   if (path === destination) {
  14     throw new Error('Jimp needs an input path different that the output path.')
  15   }
  16
  17   logger.debug('Processing image %s to %s.', path, destination)
  18
  19   let jimpInstance: any
  20
  21   try {
  22     jimpInstance = await Jimp.read(path)
  23   } catch (err) {
  24     logger.debug('Cannot read %s with jimp. Try to convert the image using ffmpeg first.', path, { err })
  25
  26     const newName = path + '.jpg'
  27     await convertWebPToJPG(path, newName)
  28     await rename(newName, path)
  29
  30     jimpInstance = await Jimp.read(path)
  31   }
  32
  33   await remove(destination)
  34
  35   await jimpInstance
  36     .resize(newSize.width, newSize.height)
  37     .quality(80)
  38     .writeAsync(destination)
  39
  40   if (keepOriginal !== true) await remove(path)
  41 }
  42
  43 // ---------------------------------------------------------------------------
  44
  45 export {
  46   processImage
  47 }