module Refinery
  module WordPress
    class Post < Page
      def tags
        # xml dump has "post_tag" for wordpress 3.1 and "tag" for 3.0
        path = if node.xpath("category[@domain='post_tag']").count > 0
          "category[@domain='post_tag']"
        else
          "category[@domain='tag']"
        end

        node.xpath(path).collect do |tag_node| 
          Tag.new(tag_node.text)
        end
      end

      def tag_list
        tags.collect(&:name).join(',')
      end

      def categories
        node.xpath("category[@domain='category']").collect do |cat|
          Category.new(cat.text)
        end
      end

      def comments
        node.xpath("wp:comment").collect do |comment_node|
          Comment.new(comment_node)
        end
      end

      def to_refinery
        user = ::User.find_by_username(creator) || ::User.first
        raise "Referenced User doesn't exist! Make sure the authors are imported first." \
          unless user
        
        begin
          is_draft = draft? ? "true" : "false"
          if !draft?
            p "creating post " + title + " Draft status: " + is_draft
            post = ::BlogPost.create! :title => title,
                                      :body => content_formatted,
                                      :draft => draft?,
                                      :published_at => post_date,
                                      :created_at => post_date,
                                      :author => user,
                                      :tag_list => tag_list
            ::BlogPost.transaction do
              categories.each do |category|
                post.categories << category.to_refinery
              end

              comments.each do |comment|
                comment = comment.to_refinery
                comment.post = post
                comment.save
              end
            end
            
          else
            p "Skipping draft post"
          end
        rescue Exception => e
          # TODO if it's not an activerecord validation error about duplicate title then raise e
          p e
        end

        post
      end
    end
  end
end