app/services/route_way_cost_calculator.rb


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class RouteWayCostCalculator
  def initialize(route)
    @route = route
  end

  def calculate!
    way_costs = StopAreasToWayCostsConverter.new(@route.stop_areas).convert
    way_costs = TomTom.matrix(way_costs)
    way_costs = WayCostCollectionJSONSerializer.dump(way_costs)
    @route.update(costs: way_costs)
  rescue TomTom::Errors::MatrixRemoteError => e
    Rails.logger.error "TomTom::Matrix server error: #{e}"
  end
end