/* a widget that displays tweet - used in conjunction with the polemicWidget */

IriSP.TweetsWidget = function(Popcorn, config, Serializer) {

  IriSP.Widget.call(this, Popcorn, config, Serializer);

  this._displayingTweet = false;

  this._timeoutId = undefined;  

};

IriSP.TweetsWidget.prototype = new IriSP.Widget();

IriSP.TweetsWidget.prototype.drawTweet = function(annotation) {

    var title = IriSP.formatTweet(annotation.content.title);

    var img = annotation.content.img.src;

    if (typeof(img) === "undefined" || img === "" || img === "None") {

      img = IriSP.widgetsDefaults.TweetsWidget.default_profile_picture;

    }

    var imageMarkup = Mustache.to_html("<img src='{{src}}' alt='user image'></img>", 

                                       {src : img});

    if (typeof(annotation.meta["dc:source"].content) !== "undefined") {

      var tweetContents = JSON.parse(annotation.meta["dc:source"].content);

      var creator = tweetContents.user.screen_name;

      imageMarkup = Mustache.to_html("<a href='http://twitter.com/{{creator}}'><img src='{{src}}' alt='user image'></img></a>", 

                                       {src : img, creator: creator});

    }

    this.selector.find(".Ldt-tweetContents").html(title);

    this.selector.find(".Ldt-tweetAvatar").html(imageMarkup);

    this.selector.show("blind", 250); 

};

IriSP.TweetsWidget.prototype.displayTweet = function(annotation) {

  if (this._displayingTweet === false) {

    this._displayingTweet = true;

  } else {

    window.clearTimeout(this._timeoutId);

  }

  this.drawTweet(annotation);

  var time = this._Popcorn.currentTime();  

  this._timeoutId = window.setTimeout(IriSP.wrap(this, this.clearPanel), IriSP.widgetsDefaults.TweetsWidget.tweet_display_period);

};

IriSP.TweetsWidget.prototype.clearPanel = function() {  

    this._displayingTweet = false;

    this._timeoutId = undefined;

    this.closePanel();

};

IriSP.TweetsWidget.prototype.closePanel = function() {

    if (this._timeoutId != undefined) {

      /* we're called from the "close window" link */

      /* cancel the timeout */

      window.clearTimeout(this._timeoutId);

    }

    this.selector.hide("blind", 400);

};

IriSP.TweetsWidget.prototype.draw = function() {

  var _this = this;

  var tweetMarkup = Mustache.to_html(IriSP.tweetWidget_template, {"share_template" : IriSP.share_template});

  this.selector.append(tweetMarkup);

  this.selector.hide();

  this.selector.find(".Ldt-tweetWidgetMinimize").click(IriSP.wrap(this, this.closePanel));

  this._Popcorn.listen("IriSP.PolemicTweet.click", IriSP.wrap(this, this.PolemicTweetClickHandler));

};

IriSP.TweetsWidget.prototype.PolemicTweetClickHandler = function(tweet_id) {  

  var index, annotation;

  for (index in this._serializer._data.annotations) {

    annotation = this._serializer._data.annotations[index];

    if (annotation.id === tweet_id)

      break;

  }

  if (annotation.id !== tweet_id)

      /* we haven't found it */

      return;

  this.displayTweet(annotation);

  return;