function initializeBaseUserData(){
  var user = userData()
  var userProfileLinkHTML = '<a href="/'+user.username+'" id="first-nav-link"><div class="option prime-option">@'+user.username+'</div></a>'
  document.getElementById("user-profile-link-placeholder").innerHTML = userProfileLinkHTML;
  document.getElementById("nav-profile-image").src = user.profile_image_90;
  initializeUserSidebar(user);
  addRelevantButtonsToArticle(user);
}

function initializeUserSidebar(user) {
  if (!document.getElementById("sidebar-nav")) return;
  initializeUserProfileContent(user);
  var tagHTML = "";
  var followedTags = JSON.parse(user.followed_tags);
  document.getElementById("tag-separator").innerHTML = followedTags.length === 0 ? "Follow tags to improve your feed" : "Other Popular Tags";
  
  // sort tags by descending weigth, descending popularity and name
  followedTags.sort(function(tagA, tagB) {
    return tagB.points - tagA.points || tagB.hotness_score - tagA.hotness_score || tagA.name.localeCompare(tagB.name);
  });
  
  followedTags.forEach(function(t){
    var element = document.getElementById("default-sidebar-element-"+t.name);
    tagHTML += t.points > 0.0 ?
      '<div class="sidebar-nav-element" id="sidebar-element-'+t.name+'">' +
      '<a class="sidebar-nav-link" href="/t/'+t.name+'">' +
      '<span class="sidebar-nav-tag-text">#'+t.name+'</span>' +
      '</a>' +
      '</div>' : '';
    if(element) element.remove();
  });
  document.getElementById("sidebar-nav-followed-tags").innerHTML = tagHTML;
  document.getElementById("sidebar-nav-default-tags").classList.add("showing");
}

function initializeUserProfileContent(user) {
  document.getElementById("sidebar-profile-pic").innerHTML = '<img alt="" class="sidebar-profile-pic-img" src="'+user.profile_image_90+'" />'
  document.getElementById("sidebar-profile-name").innerHTML =  filterXSS(user.name);
  document.getElementById("sidebar-profile-username").innerHTML = '@'+user.username;
  document.getElementById("sidebar-profile-snapshot-inner").href = "/"+user.username;
}

function addRelevantButtonsToArticle(user) {
  var articleContainer = document.getElementById('article-show-container');
  if (articleContainer) {
    if (parseInt(articleContainer.dataset.authorId) == user.id) {
      document.getElementById('action-space').innerHTML = '<a href="' + articleContainer.dataset.path + '/edit" rel="nofollow">EDIT <span class="post-word">POST</span></a>';
    } else if (user.trusted) {
      document.getElementById('action-space').innerHTML = '<a href="' + articleContainer.dataset.path + '/mod" rel="nofollow">MODERATE <span class="post-word">POST</span></a>';
    }
  }
  var commentsContainer = document.getElementById('comments-container');
  if (commentsContainer) {
    var settingsButts = document.getElementsByClassName('comment-actions');

    for (var i = 0; i < settingsButts.length; i++) {
      var butt = settingsButts[i];
      if (parseInt(butt.dataset.userId) === user.id) {
        butt.className = 'comment-actions';
        butt.style.display = 'inline-block';
      }
    }

    if (user.trusted) {
      var modButts = document.getElementsByClassName('mod-actions');
      for (var i = 0; i < modButts.length; i++) {
        var butt = modButts[i];
        butt.className = 'mod-actions';
        butt.style.display = 'inline-block';
      }
    }
  }
}