@TinyAssistant

index.js

var Twit = require('twit');
var T = new Twit(require('./config.js'));
var wordfilter = require('wordfilter');
var ent = require('ent');
var readability = require('readability-api');
readability.configure({
    consumer_key: 'CONSUMER_KEY',
    consumer_secret: 'CONSUMER_SECRET'
});

Array.prototype.pick = function() {
  return this[Math.floor(Math.random()*this.length)];
};

Array.prototype.pickRemove = function() {
  var index = Math.floor(Math.random()*this.length);
  return this.splice(index,1)[0];
};

function generate() {
  return new Promise((resolve, reject) => {
    readability.xauth('tinysubversions', 'XAUTH_KEY', (err, tokens) => {
      var reader = new readability.reader({
          access_token: tokens.oauth_token,
          access_token_secret: tokens.oauth_token_secret
      });
      reader.bookmarks({per_page: 50}, (err, bookmarks) => {
        var bookmarkList = bookmarks.bookmarks;
        var bookmark = bookmarkList.pick();
        var id = bookmark.article.id;
        reader.article(id, function (err, article) {
          console.log(article.content, article.url, Object.keys(article), id, article.excerpt);
          var content = ent.decode(article.content.replace(/(<([^>]+)>)/ig,''));
          console.log(content);
          var sentences = content.match( /[^\.!\?]+[\.!\?]+/g);
          if (sentences !== null) {
            sentences = sentences.map(sentence => {
              return sentence.replace(/\n/g,'').trim();
            });
            sentences = sentences.filter(sentence => {
              return sentence.length > 40 &&
                sentence.length < 110 &&
                // get rid of false sentence ends like "According to Charles S."
                sentence.match(/\s\w\.$/) === null;
            });
            console.log(sentences);
            console.log(bookmarkList.length);
            var tweet = sentences.pick() + ' ' + article.url;
            resolve(tweet);
          }
          else {
            console.log('There were no sentences in this article!');
          }

        });
      });
    });

  }).catch((e) => console.log(e));
}

function tweet() {
  generate().then(myTweet => {
    if (!wordfilter.blacklisted(myTweet)) {
      console.log(myTweet);
      T.post('statuses/update', { status: myTweet }, (err, reply) => {
        if (err) {
          console.log('error:', err);
        }
        else {
          console.log('reply:', reply);
        }
      });
    }
  }).catch((e) => console.log(e));
}

// Tweet once on initialization
tweet();