module Rad::Router::CoreRoutingHelper
  inject router: :router

  delegate :url_for, :url_for_path, :persist_params, :persist_params?, :dont_persist_params, to: :router

  def default_path options = {}
    url_for_path rad.router.default_path, options.merge(url_root: false)
  end

  def return_to_path options = {}
    dont_persist_params do
      path = params[:_return_to] || workspace.request.session['return_to'] || rad.router.default_path
      url_for_path path, options.merge(url_root: false)
    end
  end

  def parse_routing_arguments *args
    params = args.extract_options!
    raise "invalid usage!" unless args.size <= 1
    if args.size == 1
      raise "duplicate :id pameter!" if params.include?(:id) or params.include?('id')
      params[:id] = args.first.to_param
    end
    params
  end

  protected
    def method_missing m, *args, &block
      m = m.to_s
      if m =~ /path$/
        params = parse_routing_arguments(*args)
        klass, method = router.encode_method m, params.include?(:id)

        url_for klass, method, params
      else
        super m.to_sym, *args, &block
      end
    end
end