เอามาแบ่งปัน เผื่อ tweetple ท่านไหนอยากเอาไปเล่น
เขียนเล่นๆได้ออกมาแบบนี้
อย่าหวังผลว่าจะถูกต้องมาก เขียนเอามันส์ :)

#! /usr/bin/env ruby
################################################
# pre-installed
# 1. sudo gem install activesupport
# 2. sudo gem install hpricot
# 3. sudo gem install gchart
# How to run?

# username = 'whoyouare'
# city = 'whereareyou'
# tweets = Tweet.new(username, :local => city) # 
# tweets.stats(:of => :last_24hrs)  

# just for fun script, dont' trust the result :P
#################################################
require 'rubygems'
require 'activesupport'
require 'hpricot'
require 'open-uri'
require 'gchart'

class Tweet
  def initialize(username, options={})
    @username = username
    @twittr_url = "http://twitter.com/#{@username}"
    @page = 1
    @doc = Hpricot(twittr_page)
    @tweets = [current_tweet]
    @tweets.concat(page_tweets)
    local = options[:local]
    locality(local) unless local.nil?
  end
  
  def locality(city)
    # where else you could add.. i'm lazy...
    case city
    when 'bangkok'
      @zone_offset = 7
    when 'london', 'paris'
      @zone_offset = 1
    when 'boston'
      @zone_offset = -4
    else
      @zone_offset = 0
    end
  end
  
  def twittr_page
    page = ""
    open("#{@twittr_url}?page=#{@page}",
        "User-Agent" => "Ruby/#{RUBY_VERSION}",
        "From" => "zdk",
        "Referer" => "http://ziddik.blogspot.com/") {|f|
          f.each_line { |line|  page << line } 
      }
    page
  end

  def current_tweet
    tweet,time = @doc/'div.desc'/'p'
    tweet = tweet.inner_html
    time = DateTime.parse(time.at('abbr')['title'])
    [tweet, time]
  end

  def page_tweets
    (@doc/'div.tab'/'tr.hentry').map do |tweet|
      tweet,time = tweet/'span'
      tweet = tweet.inner_html.gsub(/^\s*(.*)\s*$/, '\1')
      time = DateTime.parse(time.at('abbr')['title'])
      [tweet, time]
    end
  end
  
  def has_older?
    (@doc/'div.tab'/'div.pagination'/'a').last.inner_text =~ /Older/
  end

  def each_tweet
    if @tweets.empty?
      return nil unless has_older?
      @page += 1
      @doc = Hpricot(twittr_page)      
      @tweets = page_tweets
    end
    @tweets.shift
  end
    
  def break_when(options = {})
    current_time = options[:current]
    tweet_time = options[:tweet]
    case options[:stat] 
    when :last_24hrs
      ressult = current_time.yesterday >= tweet_time and tweet_time.year == current_time.year
    when :per_hour
      result = current_time.months_ago(1) >= tweet_time       # get 1 month stats
    end
    return result
  end
  
  def parse_date(time)
    return DateTime.parse(time)
  end
    
  def get_stats(stat)
    hour_data = Array.new(24, 0)
    current_update_time = current_tweet.last
    while t = each_tweet
      tweet,time = t
      hour_data[(time.hour+(@zone_offset))%24] += 1  
      current_year = DateTime.now.year
      current_time = parse_date(current_update_time.to_s)
      tweet_time = parse_date(time.to_s)
      break if break_when(:stat => stat, :current => current_time, :tweet => tweet_time)
    end
    chart_url = GChart.line(
      :title => "#{@username} Tweets #{stat.to_s.humanize}",
      :data => hour_data,
      :width => 400,
      :height => 300,
      :extras => { 'chxt' => 'x,y', 'chxl' => "0:|#{(0..23).to_a.join('|')}|1:|#{hour_data.min}|#{hour_data.max}" }
    ).to_url
    puts chart_url
  end
  
  def last_24hrs_stats
    get_stats(:last_24hrs)
  end
  
  def per_hour_stats
    get_stats(:per_hour)
  end
    
  def stats(options = {})
    case options[:of].to_sym
    when :last_24hrs
      last_24hrs_stats
    when :per_hour
      per_hour_stats
    end
  end
end

username = 'zdk'
city = 'bangkok'
tweets = Tweet.new(username, :local => city) # 
tweets.stats(:of => :last_24hrs)