module PaginatedTable
  class LinkRenderer < WillPaginate::ActionView::LinkRenderer
    def initialize(page)
      super()
      @paginated_table_page = page
    end

    def sort_link(text, sort_on)
      @template.link_to(text, sort_url(sort_on), :remote => true)
    end

    def tag(name, value, attributes = {})
      if name == :a
        @template.link_to(value.to_s.html_safe, attributes.delete(:href), attributes.merge(:remote => true))
      else
        super
      end
    end

    private

    def sort_url(sort_on)
      new_page = @paginated_table_page.page_for_sort_column(sort_on)
      new_page_params = PageParams.to_params(new_page)
      params = merge_get_params({})
      symbolized_update(params, new_page_params)
      @template.url_for(params)
    end

    def default_url_params
      PageParams.to_params(@paginated_table_page)
    end
  end
end