mticker

#!/usr/bin/ruby
# encoding: utf-8
# Created: 2013-04-15 00:52:16 +0300 by ice


unless $*[0]
  puts "usage: ruby mticker.rb 60 2>/dev/nul"
  exit
end


STDOUT.sync = true

require 'net/http'
require 'json'

def get_json uri_raw, use_ssl=true
  uri = URI.parse uri_raw
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = use_ssl
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  request = Net::HTTP::Get.new(uri.request_uri)
  response = http.request(request)
  JSON.parse response.read_body
end


TICKER_FAST = 'https://data.mtgox.com/api/1/BTCUSD/ticker_fast'

if __FILE__ == $0
  begin
    t1 = Thread.new do
      loop do
        result, ret = get_json(TICKER_FAST).values_at 'result', 'return'
        if result == 'success'
          $price = ret['last_local']['display']
        else
          $price = "-1.0"
        end
      end
    end

    loop do
      puts "#{Time.now.to_s}: " << $price
      sleep $*[0].to_i
    end

  rescue
    sleep 2
    retry
  end
end