function makeRequest(url, callback) {
  request({
    url: url,
    json: true
  }, function follow(error, response, username) {
    if (!error && response.statusCode === 200) {
      callback(username);
    }
  });
}

var last_showed = "";
setTimeout(function () {
  connection.query("SELECT * FROM action_log WHERE source='twitch' AND action='follow' ORDER BY id DESC LIMIT 1", function (error, results, fields) {
    last_showed = results[0].username;
    //console.log(last_showed);
  });
}, 10 * 1000);

function followers(url) {
  request({
    url: url,
    json: true
  }, function (error, response, followerList) {
    if (!error && response.statusCode === 200) {
      followerList = followerList.follows;
      //Loop followerList and add username to nameList array.
      //Uses negative for loop to reorder followers
      var nameList = [];
      for (var i = followerList.length - 1; i >= 0; i--) {
        nameList.push(followerList[i].user.name);
      };
      //Removes old follower names including last_showed
      var newFollowers = nameList.slice(nameList.indexOf(last_showed) + 1);

      //Loops any remaining names and emits each name
      //Also sets last_showed
      for (var i = 0; i < newFollowers.length; i++) {

        last_showed = newFollowers[i];
        //
        var post_follow = { username: last_showed, action: "follow", source: "twitch", comment: last_showed + " has followed the channel" };
        connection.query('INSERT INTO action_log SET ?', post_follow, function (err, result) { });
        io.emit("new-action", last_showed, "follow", "F");
        //this will emit each name one at a time but all at once.
        //you will need to find a way to delay the showing of each notification.

        //console.log(newFollowers[i]);

      }
    }
    //Repeats every 30 secs
    //No reason to do more then 30 secs cause the api is cached
    setTimeout(followers, 30 * 1000, url);
  });
}

//initial call
setTimeout(function () {
  makeRequest(url, function follow(follow) {
    connection.query("SELECT 1 FROM action_log WHERE username = '" + follow.follows[0].user.name + "' AND source='twitch' AND action='follow' ORDER BY id LIMIT 1", function (error, results, fields) {
      if (error) {
        console.log(error);
      }
      if (results.length > 0) {
        console.log('fail');
      } else {
        var post = { username: follow.follows[0].user.name, action: "follow", source: "twitch", comment: follow.follows[0].user.name + " has followed the channel" };
        connection.query('INSERT INTO action_log SET ?', post, function (err, result) { });
      }
    });
  });
}, 2000);

setTimeout(function () {
  followers(url);
}, 20 * 1000);