UCCardの取引履歴に変化があったらim.kayac.comでiPhoneに通知デーモン

uc_card_watcher.rb

#!/bin/env ruby
# encoding: utf-8
# Author: kimoto
require 'uc_card'
require 'yaml'
require 'im-kayac'

class Pit::ImKayac
  def self.post(message, pit_key = "im.kayac.com")
    config = Pit.get(pit_key, :require => {
      :username => 'Please input your im.kayac.com Username'
    })
    ImKayac.post(config[:username], message)
  end
end

# 10分に一度
#  = 1時間に6回
#  = 1日144回
wait_time = 60 * 10

last_trades = nil
while true
  trades = UCCard.start_with_pit("uccard.co.jp"){ |card| card.recent_shoppings }

  if last_trades.nil?
    # 初回は何もしない
    # けど一応疎通確認のためになんか送ってみる(この場合は最新の取引データ1件)
    Pit::ImKayac.post(trades.first.to_s)
  else
    diff = (trades.map(&:to_s) - last_trades.map(&:to_s))
    if not diff.empty?
      diff.each{ |diff_trade|
        Pit::ImKayac.post(diff_trade)
      }
    end
  end

  last_trades = trades

  puts "waiting #{wait_time} seconds.."
  sleep wait_time
end