const formatters = new Map();
const DEFAULT = 'bencoded';

formatters.set('bencoded', require('./bencoded'));
formatters.set('json', require('./json'));
formatters.set('compact', require('./compact'));

module.exports = (peers, res, format = DEFAULT) => {
  if (!formatters.has(format)) {
    format = DEFAULT;
  }
  formatters.get(format)(peers, res);
  return format;
};