module CommentsHelper

  def comment_link_text(parent_id)
    parent_id.present? ? t("comments_helper.reply_link") : t("comments_helper.comment_link")
  end

  def comment_button_text(parent_id)
    parent_id.present?  ? t("comments_helper.reply_button") : t("comments_helper.comment_button")
  end

  def parent_or_commentable_dom_id(parent_id, commentable)
    parent_id.blank? ? dom_id(commentable) : "comment_#{parent_id}"
  end

  def child_comments_of(parent)
    return [] unless @comment_tree
    @comment_tree.children_of(parent)
  end

  def user_level_class(comment)
    if comment.as_administrator?
      "is-admin"
    elsif comment.as_moderator?
      "is-moderator"
    elsif comment.user.official?
      "level-#{comment.user.official_level}"
    else
      "" # Default no special user class
    end
  end

  def comment_author_class(comment, author_id)
    if comment.user_id == author_id
      "is-author"
    else
      "" # Default not author class
    end
  end
end