module Reviewed
  class Article < Base
    def find_page(slug)
      pages.find { |page| page.slug.match(/#{slug}/i) }
    end

    def products
      (@attributes[:products] || []).map do |product|
        Reviewed::Product.new(product)
      end
    end

    def primary_product
      products.select { |p| p.id == primary_product_id }.first
    end

    def attachments(tag=nil)
      if tag.present?
        @attributes[:attachments].select do |attachment|
          attachment_tags = attachment.tags || []
          attachment_tags.map(&:downcase).include?(tag.downcase)
        end
      else
        @attributes[:attachments]
      end
    end
  end
end