InstaSynchP Bump Command

Command to bump a video from a user or url
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// ==UserScript==
// @name        InstaSynchP Bump Command
// @namespace   InstaSynchP
// @description Command to bump a video from a user or url

// @version     1.0.3
// @author      Zod-
// @source      https://github.com/Zod-/InstaSynchP-Bump-Command
// @license     MIT

// @include     *://instasync.com/r/*
// @include     *://*.instasync.com/r/*
// @grant       none
// @run-at      document-start

// @require     https://greasyfork.org/scripts/5647-instasynchp-library/code/InstaSynchP%20Library.js?version=37716
// ==/UserScript==

function Bump(version) {
  "use strict";
  this.version = version;
  this.name = "InstaSynchP Bump Command";
  this.commands = {
    "'bump": {
      'hasArguments': true,
      'type': 'mod',
      'reference': this,
      'description': 'Bumps a video from a user or the url. Position can be specified',
      'callback': this.execute
    }
  };
  this.bumpInfo = undefined;
  this.bumpTo = undefined;
}

Bump.prototype.executeOnce = function () {
  var th = this;
  //bind event for bumping an url
  events.on(th, 'AddVideo', function (vidinfo) {
    //bump the video after it got added
    if (videoInfoEquals(vidinfo.info, th.bumpInfo)) {
      sendcmd('move', {
        info: vidinfo.info,
        position: th.bumpTo
      });
      th.bumpInfo = undefined;
      th.bumpTo = undefined;
    }
  });

};

Bump.prototype.execute = function (opts) {
  "use strict";
  var th = this,
    user = opts.usernames[0],
    i,
    activeIndex = activeVideoIndex(),
    bumpIndex = -1,
    playlist = window.room.playlist.videos;
  th.bumpTo = opts.numbers.length > 0 ? opts.numbers[0] : activeVideoIndex() + 1;
  th.bumpInfo = opts.videos[0];

  //return if nothing to bump got found
  if (!user && !th.bumpInfo) {
    addSystemMessage('Nothing found to bump: \'bump [user] [url] [position]');
    return;
  }

  //search the video to be bumped
  for (i = playlist.length - 1; i >= 0; i -= 1) {
    if (videoInfoEquals(playlist[i].info, th.bumpInfo) ||
      (user && playlist[i].addedby.toLowerCase() === user.toLowerCase())) {
      bumpIndex = i;
      break;
    }
  }
  //video not found
  if (bumpIndex === -1) {
    //no link provided
    if (!th.bumpInfo) {
      addSystemMessage("The user didn't add any videos");
    } else {
      //add the video and bump it in the addVideo event
      sendcmd('add', {
        URL: urlParser.create({
          videoInfo: th.bumpInfo
        })
      });
    }
  } else {
    sendcmd('move', {
      info: playlist[bumpIndex].info,
      position: th.bumpTo
    });
    th.bumpTo = undefined;
    th.bumpInfo = undefined;
  }
};

window.plugins = window.plugins || {};
window.plugins.bump = new Bump('1.0.3');