Class: NationalRail::JourneyPlanner::DetailsPageParser

Inherits:
Object
  • Object
show all
Defined in:
lib/national-rail/journey_planner/details_page_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(doc, date) ⇒ DetailsPageParser

Returns a new instance of DetailsPageParser.



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# File 'lib/national-rail/journey_planner/details_page_parser.rb', line 5

def initialize(doc, date)
  @doc, @date = doc, date
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/national-rail/journey_planner/details_page_parser.rb', line 9

def parse
  details = {}
  description_divs = (@doc/"table#journeyLegDetails tbody tr.lastRow td[@colspan='6'] div")
  return details unless description_divs.any?
  description = description_divs.last.inner_text.gsub(/\s+/, " ").strip
  company_matches = /(.*) service from .* to .*/.match(description)
  return details unless company_matches
  details[:company] = company_matches[1].strip
  origins, destinations = (/.* service from (.*) to (.*)/.match(description)[1,2]).map{ |s| s.split(",").map(&:strip) }
  details[:origins], details[:destinations] = origins, destinations
  parser = TimeParser.new(@date)

  origin_code = (@doc/"td.origin abbr").inner_html.strip
  departs_at = (@doc/"td.leaving").inner_html.strip
  details[:initial_stop] = {
    :station_code => origin_code,
    :departs_at => parser.time(departs_at)
  }

  details[:stops] = []
  (@doc/".callingpoints table > tbody > tr").each do |tr|
    if (tr/".calling-points").length > 0
      station_code = (tr/".calling-points > a > abbr").inner_html.strip
      arrives_at = (tr/".arrives").inner_html.strip
      departs_at = (tr/".departs").inner_html.strip
      departs_at = arrives_at if arrives_at.present? && departs_at.blank?
      arrives_at = departs_at if arrives_at.blank? && departs_at.present?
      details[:stops] << {
        :station_code => station_code,
        :arrives_at => parser.time(arrives_at),
        :departs_at => parser.time(departs_at)
      }
    end
  end

  destination_code = (@doc/"td.destination abbr").inner_html.strip
  arrives_at = (@doc/"td.arriving").inner_html.strip
  details[:final_stop] = {
    :station_code => destination_code,
    :arrives_at => parser.time(arrives_at)
  }
  details
end