weather.rb

require 'nokogiri'
require 'open-uri'

URL = "http://www.wunderground.com/US/TX/173.html" #change this if you're not in cedar park


TIMESTAMP = /^\d\d\/\d\d\/\d\d\d\d/


$seen = {}

def print(strings)
  `say new update`
  puts "-" * 80
  puts strings.join("\n")
  puts "-" * 80
  puts
  puts
  $seen[strings.first] = true
end

def seen?(strings)
  $seen[strings.first]
end

def fetch
  doc = Nokogiri::HTML(`curl -s #{URL}`)

  report = doc.css(".wx-module").detect{|el| el.to_s =~ /Local Storm Report/}

  report = report.to_s.split("<br>").reject{|i| i.empty?}

  buffer = []

  report.each do |line|
    if line =~ TIMESTAMP
      print(buffer) unless seen?(buffer)
      buffer = []
    end
    buffer << line
  end
end

loop do
  fetch
  sleep 5
end