Local bus info widget in Dashing

oba.rb

require 'rubygems'
require 'nokogiri'
require 'open-uri'

widget = 'oba'

walktime = 5

SCHEDULER.every '1m' do
  soonest = 20
  oba = Nokogiri::HTML(open("http://pugetsound.onebusaway.org/where/sign/stop.action?id=1_18359"))

  buses = oba.xpath("//td[contains(@class,'arrivalsStatusEntry')]/span/text()")

  buses.each { |bus| 
    if bus.to_s == 'NOW'
      next
    end
    b = bus.to_s.to_i - walktime
    if b < 0
      next
    end
    soonest = [soonest,b].min
  }

  puts "sending " + widget.to_s  + " : " + soonest.to_s
  send_event(widget.to_s, { value: soonest.to_i })
end