flight.rb

class FlightManager

  def self.search(search_criteria)
    flights = "FlightProviders::#{search_criteria[:provider].camelize}".constantize.search_flights search_criteria
    normalize_flights flights
  end

  def self.normalize_flights(flights_arr)
    ## f here is a hash (each provider from above returns different hash
    ## need to turn f into an object so that can define/invoke "normalizing" methods on it
    flights_arr.map do |f|
      {
        origin_city: f.origin_city,
        dest_city: f.dest_city,
        ...
      }
    end
  end
end