Formula1 calendar script. P1-3, qualifying. and race start times for the year

f1calendar.rb

# Dependencies
#
#    $ gem install icalendar
#
# Usage
#
#    $ git clone https://gist.github.com/5104840.git f1calendar
#    $ ruby f1calendar/f1calendar.rb
#
# FORMULA 1 GRANDE PRÊMIO DO BRASIL 2015 - Sao Paulo - 2015-11-13 12:00:00 UTC - Practice 1
# FORMULA 1 GRANDE PRÊMIO DO BRASIL 2015 - Sao Paulo - 2015-11-13 16:00:00 UTC - Practice 2
# FORMULA 1 GRANDE PRÊMIO DO BRASIL 2015 - Sao Paulo - 2015-11-14 13:00:00 UTC - Practice 3
# FORMULA 1 GRANDE PRÊMIO DO BRASIL 2015 - Sao Paulo - 2015-11-14 16:00:00 UTC - Qualifying
# FORMULA 1 GRANDE PRÊMIO DO BRASIL 2015 - Sao Paulo - 2015-11-15 16:00:00 UTC - Race
# 2015 FORMULA 1 ETIHAD AIRWAYS ABU DHABI GRAND PRIX - Yas Marina - 2015-11-27 09:00:00 UTC - Practice 1
# 2015 FORMULA 1 ETIHAD AIRWAYS ABU DHABI GRAND PRIX - Yas Marina - 2015-11-27 13:00:00 UTC - Practice 2
# 2015 FORMULA 1 ETIHAD AIRWAYS ABU DHABI GRAND PRIX - Yas Marina - 2015-11-28 10:00:00 UTC - Practice 3
# 2015 FORMULA 1 ETIHAD AIRWAYS ABU DHABI GRAND PRIX - Yas Marina - 2015-11-28 13:00:00 UTC - Qualifying
# 2015 FORMULA 1 ETIHAD AIRWAYS ABU DHABI GRAND PRIX - Yas Marina - 2015-11-29 13:00:00 UTC - Race

class F1CalendarEvent
  attr_reader :kind, :summary, :city, :start_time

  def initialize(cal_event)
    return nil if cal_event.sequence == 0

    @city        = cal_event.location.strip
    self.summary = cal_event.summary
    @start_time  = DateTime.parse(cal_event.dtstart.to_s).to_time.utc
  end

  def kind_name
    kind.to_s.capitalize.gsub(/\d/, ' \0')
  end

  def summary=(summary)
    kind_regex = summary.match(/(.+):\s/)

    if kind_regex
      @kind = kind_regex[1].gsub(/\s+/, '').downcase.to_sym
      @summary = summary.gsub(kind_regex[0], '')
                        .gsub(/s+/, ' ').strip
    else
      @kind = :race
      @summary = summary.strip
    end
  end

  def to_s
    "#{summary} - #{city} - #{start_time} - #{kind_name}"
  end
end

require 'net/http'
require 'uri'
require 'icalendar'

# Open this in Safari http://cal.f1.com/calendar
# Click subscribe to all sessions
URL = "http://formula1.calreply.net/calendar/calendar?id=NzIwYTFlZDMtNDk4Yy00Y2M2LWE0ZmQtMzNhZTMzZWQxYWRkfDFlM2M5N2Q0LTFiNzMtNGMwZi05ZjlmLTk4ZmYwNDRlMzhmZHx3fHx8fHxNb3ppbGxhLzUuMCAoTWFjaW50b3NoOyBJbnRlbCBNYWMgT1MgWCAxMF8xMF8zKSBBcHBsZVdlYktpdC82MDAuNS4xNyAoS0hUTUwsIGxpa2UgR2Vja28pIFZlcnNpb24vOC4wLjUgU2FmYXJpLzYwMC41LjE3fHV0bV9zb3VyY2U9fHV0bV9tZWRpdW09fHV0bV9jYW1wYWlnbj18dXRtX2NvbnRlbnQ9fHRhZ0lkPTFlM2M5N2Q0LTFiNzMtNGMwZi05ZjlmLTk4ZmYwNDRlMzhmZA=="
uri = URI(URL)
body = Net::HTTP.get(uri)

cal = Icalendar.parse(body).first

cal.events.each do |event|
  puts F1CalendarEvent.new(event).to_s
end