/**
 * Fallback behavior, if the code is wrong or unspecified, then we should dial the fallback numbers
 */
exports.handler = function(context, event, callback) {
  let twiml = new Twilio.twiml.VoiceResponse();

  let config = JSON.parse(event.config);
  console.log(config);
  let configQuery = `config=${encodeURIComponent(JSON.stringify(config))}`;

  // If no valid answer after timeout, dial all residents until someone picks up
  let dial = twiml.dial({
    action: `/text-me?Method=call&${configQuery}`, 
    timeLimit: 20, 
    timeout: 20
  });

  config.fallbackNumbers.forEach(number => {
    dial.number(number);
  });
   
  return callback(null, twiml);
}