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

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

  /* flag used when we're creating an annotation */

  this._hidden = false;

};

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

IriSP.AnnotationsWidget.prototype.clear = function() {

    this.selector.find(".Ldt-SaTitle").text("");

    this.selector.find(".Ldt-SaDescription").text("");

    this.selector.find(".Ldt-SaKeywordText").text("");

};

IriSP.AnnotationsWidget.prototype.displayAnnotation = function(annotation) {       

    var title = annotation.content.title;

    var description = annotation.content.description;

    var keywords =  "";

    var begin = +annotation.begin / 1000;

    var end = +annotation.end / 1000;

    var duration = this._serializer.getDuration();

    var tags = "";

    var title_templ = "{{title}} - ( {{begin}} - {{end}} )";

    var endstr = Mustache.to_html(title_templ, {title: title, begin: IriSP.secondsToTime(begin), end: IriSP.secondsToTime(end)});

    this.selector.find(".Ldt-SaTitle").text(endstr);

    this.selector.find(".Ldt-SaDescription").text(description);

    if (!IriSP.null_or_undefined(annotation.tags) && !IriSP.null_or_undefined(this._serializer._data.tags)) {

      /* save the tag id and keywords in a unique structure */

      var tag_list = {};

      for (var i = 0; i < this._serializer._data.tags.length; i++) {

        var id = this._serializer._data.tags[i]["id"];

        var keyword = IriSP.get_aliased(this._serializer._data.tags[i]["meta"], ["dc:title", "title"]);

        tag_list[id] = keyword;

      }

      /* then browse the list of defined tags for the current annotation */

      for (var i = 0; i < annotation.tags.length; i++) {

        if (tag_list.hasOwnProperty(annotation.tags[i]["id-ref"]))

          tags += tag_list[annotation.tags[i]["id-ref"]] + ", ";

      }

    }

    this.selector.find(".Ldt-SaKeywords").text(tags);

    // update sharing buttons

    var defaults = IriSP.widgetsDefaults.AnnotationsWidget;

    var text = defaults.share_text;

    var fb_link = defaults.fb_link;

    var tw_link = defaults.tw_link;

    var gplus_link = defaults.gplus_link;

    var url = document.location.href + "#id=" + annotation.id;

    this.selector.find(".Ldt-fbShare").attr("href", IriSP.mkFbUrl(url, text));

    this.selector.find(".Ldt-TwShare").attr("href", IriSP.mkTweetUrl(url, text));

    this.selector.find(".Ldt-GplusShare").attr("href", IriSP.mkGplusUrl(url, text));

};

IriSP.AnnotationsWidget.prototype.clearWidget = function() {   

    /* retract the pane between two annotations */

    this.selector.find(".Ldt-SaTitle").text("");

    this.selector.find(".Ldt-SaDescription").text("");

    this.selector.find(".Ldt-SaKeywordText").html("");

    this.selector.find(".Ldt-ShowAnnotation").slideUp();

};

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

  var _this = this;

  var annotationMarkup = IriSP.templToHTML(IriSP.annotationWidget_template);

	this.selector.append(annotationMarkup);

  this._Popcorn.listen("IriSP.AnnotationsWidget.show", 

                        IriSP.wrap(this, this.show));

  this._Popcorn.listen("IriSP.AnnotationsWidget.hide", 

                        IriSP.wrap(this, this.hide));

  var legal_ids = [];

  if (typeof(this._serializer.getChapitrage()) !== "undefined")

    legal_ids.push(this._serializer.getChapitrage());

  else 

    legal_ids = this._serializer.getNonTweetIds();

  var annotations = this._serializer._data.annotations;

  var i;

	for (i in annotations) {    

    var annotation = annotations[i];

    var begin = Math.round((+ annotation.begin) / 1000);

    var end = Math.round((+ annotation.end) / 1000);

    if (typeof(annotation.meta) !== "undefined" && typeof(annotation.meta["id-ref"]) !== "undefined"

          && !IriSP.underscore.include(legal_ids, annotation.meta["id-ref"])) {

        continue;

    }

    var conf = {start: begin, end: end, 

                onStart: 

                       function(annotation) { 

                        return function() { 

                            _this.displayAnnotation(annotation); 

                        } }(annotation),

                onEnd: 

                       function() { _this.clearWidget.call(_this); }

                };

    this._Popcorn = this._Popcorn.code(conf);                                             

  }

};

IriSP.AnnotationsWidget.prototype.hide = function() {

  if (this._hidden == false) {

    this.selector.hide();

    this._hidden = true;

  }

};

IriSP.AnnotationsWidget.prototype.show = function() {

  if (this._hidden == true) {

    this.selector.show();

    this._hidden = false;

  }

};