active_shipping_pr_refactor.rb

class CorreiosRequest
  # ...
  def build_params(package)
    @params.merge(package.params)
  end

  def hash_query_string(params)
    {
      'nCdEmpresa' => params[:company_id],
      'sDsSenha' => params[:password],
      'nCdServico' => params[:service_type],
      'sCepOrigem' => params[:origin_zip],
      'sCepDestino' => params[:destination_zip],
      'nVlPeso' => params[:weight],
      'nCdFormato' => params[:format],
      'nVlComprimento' => params[:length],
      'nVlAltura' => params[:height],
      'nVlLargura' => params[:width],
      'nVlDiametro' => params[:diameter],
      'sCdMaoPropria' => params[:mao_propria_extra],
      'nVlValorDeclarado' => params[:declared_value_extra],
      'sCdAvisoRecebimento' => params[:delivery_notice_extra],
      'nIndicaCalculo' => params[:return_information],
      'StrRetorno' => params[:return_type]
    }
  end

  def query_string(package)
    params = build_params(package)
    hash_query_string(params).map { |key, value| "#{CGI.escape(key)}=#{CGI.escape(value.to_s)}" }.join('&')
  end

  def create_url(package)
    "#{URL}?#{query_string(package)}"
  end
  # ...
end

##------------------------------------------------------------------------------
##------------------------------------------------------------------------------

class CorreiosRequest
  # ...
  def hash_query_string(package: package)
    params = @params.merge(package.params)

    {
      'nCdEmpresa' => params[:company_id],
      'sDsSenha' => params[:password],
      'nCdServico' => params[:service_type],
      'sCepOrigem' => params[:origin_zip],
      'sCepDestino' => params[:destination_zip],
      'nVlPeso' => params[:weight],
      'nCdFormato' => params[:format],
      'nVlComprimento' => params[:length],
      'nVlAltura' => params[:height],
      'nVlLargura' => params[:width],
      'nVlDiametro' => params[:diameter],
      'sCdMaoPropria' => params[:mao_propria_extra],
      'nVlValorDeclarado' => params[:declared_value_extra],
      'sCdAvisoRecebimento' => params[:delivery_notice_extra],
      'nIndicaCalculo' => params[:return_information],
      'StrRetorno' => params[:return_type]
    }
  end

  def create_url(package)
    scheme, userinfo, host, port, registry, path, opaque, query, fragment = URI::split(URL)
    
    query = Rack::Utils.parse_nested_query(query)
      .merge(hash_query_string(package: package))
      .to_query
    
    URI::HTTP.new(scheme, userinfo, host, port, registry, path, opaque, query, fragment)
  end
  # ...
end