add parameters depending on url

loaderComponent.cr

class LoaderComponent < BaseComponent
  needs domain : Domain
  needs period : String
  needs url : String
  needs goal : Goal? = nil
  needs site_path : String = ""
  needs source : String = ""
  needs style : String = ""

  def render
    paramas = set_params
    if paramas.nil?
      div data_controller: "loader", data_loader_period: period, data_loader_url: "/domains/#{@domain.id}/#{url}", class: style
    else
      div **paramas, data_controller: "loader", data_loader_period: period, data_loader_url: "/domains/#{@domain.id}/#{url}", class: style
    end
  end

  def set_params
    params = Hash(Symbol, String | Int64).new

    params[:data_loader_site_path] = site_path if !site_path.empty?
    params[:data_source] = source if !source.empty?
    params[:data_loader_goal] = goal.not_nil!.id if !goal.nil?

    return nil if params.empty?
    keys = params.keys
    get_params_for_parameter(keys).from(params)
  end

  macro get_params_for_parameter(*keys)
    NamedTuple({% for key in keys %} {{key.id}}: String | Int64, {% end %})
  end
end