function _tar(out: string, dir: string) {
  return tar.create({
    gzip: true,
    strict: true,
    portable: true,
    cwd: dir,
    file: out,
    sync: true,
  }, ['.']);
}

export const createArchive = async (fileName: string, folder: string, files: string[]): Promise<string> => {
  try {
    await tar.create(
      {
        cwd: folder,
        file: fileName,
        portable: true,
        gzip: true
      },
      files
    )
    return fileName
  } catch (err) {
    throw new VError(err, `[Archive] Error creating archive "${fileName}"`)
  }
}

async function zipFiles(modulePath, outPath) {
  const packageJson = require(path.join(modulePath, 'package.json'))
  outPath = outPath.replace(/%name%/gi, packageJson.name.replace(/[^\w-]/gi, '_'))
  outPath = outPath.replace(/%version%/gi, packageJson.version.replace(/[^\w-]/gi, '_'))

  if (!path.isAbsolute(outPath)) {
    outPath = path.join(modulePath, outPath)
  }

  debug(`Writing to "${outPath}"`)

  const files = glob.sync('**/*', {
    cwd: modulePath,
    nodir: true,
    ignore: ['node_modules/**', 'src/**']
  })

  debug(`Zipping ${files.length} files...`)

  await tar.create({ gzip: true, follow: true, file: outPath, portable: true }, files)
}

// This method mimics how npm pack tars packages.
function _tar(out: string, dir: string) {
  // NOTE: node-tar does some Magic Stuff depending on prefixes for files
  //       specifically with @ signs, so we just neutralize that one
  //       and any such future "features" by prepending `./`

  // Without this, the .tar file cannot be opened on Windows.

  const files = _recursiveFileList(dir).map((f) => `./${f}`);

  return tar.create({
    gzip: true,
    strict: true,
    portable: true,
    cwd: dir,
    prefix: 'package/',
    file: out,
    sync: true,
    // Provide a specific date in the 1980s for the benefit of zip,
    // which is confounded by files dated at the Unix epoch 0.
    mtime: new Date('1985-10-26T08:15:00.000Z'),
  }, files);
}

function tarFiles(out: string, dir: string): Promise<void> {
  // const files = fs.readdirSync(dir);
  return tar.create({ gzip: true, strict: true, portable: true, cwd: dir, file: out }, ['.']);
}