just-paja/radio-drama-queen

const ffmpeg = require('fluent-ffmpeg')
const jetpack = require('fs-jetpack')
const workerpool = require('workerpool')

const { file } = require('tmp-promise')

const logger = {
  debug: (...args) => console.info(...args),
  error: (...args) => console.error(...args),
  info: (...args) => console.info(...args),
  warn: (...args) => console.warn(...args)
}

workerpool.worker({
  updateSound: (soundData) => {
    if (!soundData) {
      return Promise.reject(new Error('You must pass some sound data'))
    }

    const { name, tags } = soundData
    let tempFile
    return file({ postfix: `.${soundData.format}` })
      .then(file => new Promise((resolve, reject) => {
        tempFile = file
        ffmpeg(soundData.cachePath, { logger })
          .audioCodec('copy')
          .outputOptions(
            '-map_metadata',
            '0:s:0',
            '-metadata',
            `title=${name.replace(/\s+/g, ' ')}`,
            '-metadata',
            `TIT1=${tags.map(tag => tag.title).join(', ')}`
          )
          .on('error', (err, stdout, stderr) => {
            console.log(stdout)
            console.log(stderr)
            reject(err)
          })
          .on('end', resolve)
          .save(tempFile.path)
      }))
      .then(() => jetpack.copyAsync(tempFile.path, soundData.cachePath, { overwrite: true }))
      .then(() => tempFile.cleanup())
  }
})