module Ratis
  # This method returns the time of the next vehicles at a location based on TA ID or
  # ATIS stop ID only. The date and time of the query are “today” and “now.” The response
  # is a subset of the data returned by the Nextbus method.
  class NextBus2

    attr_accessor :stops, :runs

    # Initializes a NextBus object with stops and runs.
    # @return     [NextBus]
    #
    # == Parameters:
    #
    # [stops]    <em>Optional</em> -
    #            An array of stops. Defaults to empty array.
    # [runs]     <em>Optional</em> -
    #            An array of runs. Defaults to empty array.

    def initialize(response)
      @stops = response.to_array :nextbus2_response, :stops, :stop
      @runs  = response.to_array :nextbus2_response, :runs, :run
    end

    # Returns results of NextBus query containing arrays of stops and runs.
    # @return     [NextBus] containing next buses.
    #
    # == Parameters:
    #
    # Takes hash of conditions
    #
    # [option1]      <b>Required</b> -
    #                Description of required param
    # [option2]      <em>Optional</em> -
    #                Description of optional param
    # [option3]      <em>Optional</em> -
    #                Description of optional param
    # [option4]      <em>Optional</em> -
    #                Description of optional param

    def self.where(conditions)
      stop_id = conditions.delete :stop_id
      raise ArgumentError.new('You must provide a stop ID') unless stop_id
      Ratis.all_conditions_used? conditions

      response = Request.get 'Nextbus2', { 'Stopid' => stop_id }
      return [] unless response.success?

      NextBus2.new(response)
    end

    # Details of NextBus instance in a hash to be transformed to xml
    # @private

    def to_hash_for_xml
      raise 'Not yet implemented'
      { :stopname => first_stop_description,
        :runs     => runs.map do |run|
          { :time           => run[:estimatedtime],
            :scheduled_time => run[:triptime],
            :sign           => run[:sign],
            :adherence      => run[:adherence],
            :route          => run[:route]
          }
        end
      }
    end
  end

end