usps_shipper.rb

class UspsShipper
  attr_accessor :order, :saddle

  def usps
    # removed usps api init code here...it works
  end

  def package 
    # Create the package
    @package ||= Package.new(
      saddle.package_weight_ounces,
      [saddle.package_width, saddle.package_height],
      units: :imperial
    )
  end

  def origin
    # Define the origin of package
    @origin ||= Location.new(
      country: "US",
      state: "WA",
      city: "Camas",
      zip: "98607"
    )
  end

  def destination
    @destination ||= begin
      if order.american?
        # American orders
        destination = Location.new(
          country:  "US",
          state:    order.shipping_state,
          city:     order.shipping_city,
          zip:      order.shipping_zip_code
        )
      else
        # International orders
        destination = Location.new(
          country:      order.shipping_country,
          province:     order.shipping_province,
          city:         order.shipping_city,
          postal_code:  order.shipping_zip_code
        )
      end
      destination
    end
  end

  def usps_shipping_rates
    usps_rates = nil

    usps = USPS.new(
      login:    "960ANSUR0115",
      test:     :false
    )
    
    # Query just USPS
    begin
      usps_response = usps.find_rates(origin, destination, package) if usps.valid_credentials?
    rescue
      usps_response = nil
    end

    if usps_response
      usps_rates = usps_response.rates.sort_by(&:price).collect {|rate| [rate.service_name, rate.price]}
    end

    usps_rates
  end
end