PetaBencana Bot Twitter Disaster Filter

filter.js

/**
* parseRequest - Parse an incoming tweet from PowerTrack activity object to determine disaster type.
*                A method of CogniCity PowertrackDataSource()
* @param {object} tweetActivity - Tweet activity object
* @param {boolean} addressed - Whether the tweet was addressed to the chat bot (e.g. @petabencana...)
*/
function parseRequest(tweetActivity, addressed) {
    // Extract metadata
		var username = tweetActivity.actor.preferredUsername;
		var words = tweetActivity.body;
    var filter = words.match(/banjir|flood|gempa|earthquake|forestfire|kebakaranhutan|haze/gi);
    var language = this._parseLangsFromActivity(tweetActivity)[0];
    var disaster = 'default';
      if (filter) { filter = filter[0].toLowerCase(); }
    
    // Determine disaster by keyword
    switch (filter) {
        case null:
          this.logger.info('Bot could not detect request keyword');
          return;

        case 'banjir':
          this.logger.info('Bot detected request keyword "banjir"');
          language = 'id';
          disaster = 'flood';
          break;

        case 'flood':
          this.logger.info('Bot detected request keyword "flood"');
          language = 'en';
          disaster = 'flood';
          break;

        case 'gempa':
          this.logger.info('Bot detected request keyword "gempa"');
          language = 'id';
          disaster = 'earthquake';
          break;

        case 'earthquake':
          this.logger.info('Bot detected request keyword "earthquake"');
          language = 'en';
          disaster = 'earthquake';
          break;

        case 'forestfire':
          this.logger.info('Bot detected request keyword "forestfire"');
          language = 'en';
          disaster = 'fire';
          break;

      case 'kebakaranhutan':
          this.logger.info('Bot detected request keyword "kebakaranhutan"');
          language = 'id';
          disaster = 'fire';
          break;

      case 'haze':
          this.logger.info('Bot detected request keyword "haze"');
          language = 'en';
          disaster = 'haze';
          break;
    
      // Next, initiate conversation with user
      this._sendStart(username, language, disaster, tweetActivity)
}