var getRank = function(post){
  if(window.sortBy=="score"){
    var filter = {$or: [
      {score: {$gt: post.score}},
      {$and: [{score: post.score}, {submitted: {$lt: post.submitted}}]}
    ]};
  }else{
    var filter = {$or: [
      {submitted: {$gt: post.submitted}},
      {$and: [{submitted: post.submitted}, {score: {$lt: post.score}}]}
    ]};
  }

  return Posts.find(filter).count()+1;  
}

Template.post_item.preserve({
  '.post': function (node) {return node.id; }
});


Template.post_item.helpers({
  rank: function() {
    return getRank(this);
  },
  domain: function(){
    var a = document.createElement('a');
    a.href = this.url;
    return a.hostname;
  },
  current_domain: function(){
    return "http://"+document.domain;
  },
  can_edit: function(){
    if(Meteor.user() && (Meteor.user().isAdmin || Meteor.userId() === this.userId))
      return true;
    else
      return false;
  },
  authorName: function(){
    return getAuthorName(this);
  },
  short_score: function(){
    return Math.floor(this.score*1000)/1000;
  },
  body_formatted: function(){
    var converter = new Markdown.Converter();
    var html_body=converter.makeHtml(this.body);
    return html_body.autoLink();
  },
  ago: function(){
    return moment(this.submitted).fromNow();
  },
  voted: function(){
    var user = Meteor.user();
    if(!user) return false; 
    return _.include(this.upvoters, user._id);
  },
});

Template.post_item.created = function(){
  if(this.data){
    this.current_distance = (getRank(this.data)-1) * 80;
  }
}

Template.post_item.rendered = function(){
  // t("post_item");
  if(this.data){
    var new_distance=(getRank(this.data)-1)*80;
    var old_distance=this.current_distance;
    var $this=$(this.find(".post"));
    var instance=this;
    // at rendering time, move posts to their old place
    $this.css("top", old_distance+"px");
    Meteor.setTimeout(function() {
      // then a few milliseconds after, move the to their new spot
      $this.css("top", new_distance+"px");
      // we don't want elements to be animated the first ever time they load, so we only set the class "animate" after that
      $this.addClass("animate");
      instance.current_distance=new_distance;
    }, 100);
  }


};

Template.post_item.events = {
  'click .upvote-link': function(e, instance){
    e.preventDefault();
      if(!Meteor.user()){
        throwError("Please log in first");
        return false;
      }
      Meteor.call('upvotePost', this._id, function(error, result){
        trackEvent("post upvoted", {'postId': instance.postId});
      });
  }

  , 'click .share-link': function(e){
      var $this = $(e.target);
      e.preventDefault();
      $(".share-link").not($this).next().addClass("hidden");
      $this.next().toggleClass("hidden");
      console.log($this);
      $this.next().find('.share-replace').sharrre(SharrreOptions);
      // $(".overlay").toggleClass("hidden");
  }
};