Little i18n refractoring

[github/Chocobozzz/PeerTube.git] / scripts / i18n / xliff2json.ts

import * as xliff12ToJs from 'xliff/xliff12ToJs'
import { unlink, readFileSync, writeFile } from 'fs'
import { join } from 'path'
import { buildFileLocale, I18N_LOCALES, isDefaultLocale, LOCALE_FILES } from '../../shared/models/i18n/i18n'
import { eachSeries } from 'async'

const sources: string[] = []
const availableLocales = Object.keys(I18N_LOCALES)
                               .filter(l => isDefaultLocale(l) === false)
                               .map(l => buildFileLocale(l))

for (const file of LOCALE_FILES) {
  for (const locale of availableLocales) {
    sources.push(join(__dirname, '../../../client/src/locale/target/', `${file}_${locale}.xml`))
  }
}

eachSeries(sources, (source, cb) => {
  xliffFile2JSON(source, cb)
}, err => {
  if (err) return handleError(err)

  process.exit(0)
})

function handleError (err: any) {
  console.error(err)
  process.exit(-1)
}

function xliffFile2JSON (filePath: string, cb) {
  const fileTarget = filePath.replace('.xml', '.json')

  // Remove the two first lines our xliff module does not like
  let fileContent = readFileSync(filePath).toString()
  fileContent = removeFirstLine(fileContent)
  fileContent = removeFirstLine(fileContent)

  xliff12ToJs(fileContent, (err, res) => {
    if (err) return cb(err)

    const json = createJSONString(res)
    writeFile(fileTarget, json, err => {
      if (err) return cb(err)

      return unlink(filePath, cb)
    })
  })
}

function removeFirstLine (str: string) {
  return str.substring(str.indexOf('\n') + 1)
}

function createJSONString (obj: any) {
  const res: any = {}
  const strings = obj.resources['']

  Object.keys(strings).forEach(k => res[k] = strings[k].target)

  return JSON.stringify(res)
}