dyaskur / google-chat-poll

import {PollConfig} from './interfaces';

/**

 * Split string/message to topic and choice

 * reference: https://stackoverflow.com/a/18647776/2671470

 *

 * @param {string} message - the new option name

 * @returns {array} card

 */

export function splitMessage(message: string) {

  const expression = /[^\s"]+|"([^"]*)"/gi;

  const result = [];

  let match;

  do {

    match = expression.exec(message);

    if (match != null) {

      result.push(match[1] ? match[1] : match[0]);

    }

  } while (match != null);

  return result;

}

/**

 * Build poll options from message sent by user.

 *

 * @param {string} message - message or text after poll command

 * @returns {object} option

 */

export function buildOptionsFromMessage(message: string): PollConfig {

  const explodedMesage = splitMessage(message);

  const topic = explodedMesage[0] !== 'undefined' && explodedMesage[0] ?

    explodedMesage[0] :

    '';

  if (explodedMesage.length > 0) {

    explodedMesage.shift();

  }

  return {

    topic,

    choices: explodedMesage,

  };

}