gistfile1.rb

class TwitterOnMerb < Merb::Controller

  def _template_location(action, type = nil, controller = controller_name)
    controller == "layout" ? "layout.#{action}.#{type}" : "#{action}.#{type}"
  end

#shows twitter
  def index
    render   
  end

#aggregate rss feeds and edge merb rdoc
  def commits
    @edgemerb_commits = []
     merb = 'http://github.com/wycats/merb/commits/1.0.x'
     get_commits_and_bark(merb, @edgemerb_commits, "edgemerb")

    @negotiation_commits = []
     negotiation = 'http://github.com/wycats/rails/commits/content_negotiation'
     get_commits_and_bark(negotiation, @negotiation_commits, "negotiation")
     
    @katz_blog = []
     blog= 'http://yehudakatz.com'
     get_blog_and_bark(blog, @katz_blog)
     
    render
  end
 
# just another plain html   
  def about
    render 
  end

#parsing github commits 
  def get_commits_and_bark(url, array, category)
    connect
    doc  = Nokogiri::HTML(open(url))
    doc.css('div.human').each do |h|
       h.search('div.message').each {|k| @message = k.content}
       h.search('div.name').each do |k| 
         @name =  (k.content).to_s.strip.gsub("(author)", "").gsub("(committer)","")
       end
       h.search('div.date').each do |k| 
         @date = k.content
         @new_date = Time.parse(@date.strip)
       end
       h.search('pre a[href]').each do |k| 
         @link =  (k.attributes)
         @new_link =  ShortURL.shorten("http://github.com" + @link.to_s.strip.gsub("href", ''), :lns)
       end
       array <<{:message => @message, :name => @name, :date => @new_date, :link => @new_link, :category => category}           
    end  
    array.slice!(4, array.length) 
    array.each do |tweet|
      bark(tweet)
    end
  end

#parsing a blog  
  def get_blog_and_bark(url, array)
    doc  = Nokogiri::HTML(open(url))
    doc.css('div.entry').each do |h|
      @name = "Katz"
      h.search('h3.entrytitle').each {|k| @title = k.content }        
      h.search('a[href]').each do |k| 
        @link =  (k.attributes)
        @new_link =  ShortURL.shorten(@link.to_s.strip.gsub("href", ''), :lns)
      end
      h.search('div.meta').each do |k| 
        @date = k.content
        @new_date = Time.parse(@date.strip)
      end
      array <<{:message => @title, :name => @name, :date=> Time.now, :category => "Katz's blog'", :link => @new_link}
    end
    array.slice!(4, array.length)
    array.each do |tweet|
      bark(tweet)
    end
  end
  
  def connect
    @post_client = Twitter::Client.new(:login => 'edgemerb', :password => '******')
  end
  
#create tweets
#Since twitter API does not provide unique message check,
#I had to build db to validiate it.
  def bark(tweet) 
  @tweet = Tweet.new(tweet)
    if @tweet.save
############ RUN LATER BLOCK ################
      run_later do
        begin
         post(tweet)
        rescue Twitter::RESTError => re
          unless re.code == "403"
            puts re
          end
        end #begin-rescue end 
      end  #run_later end    
############ RUN LATER BLOCK ################
    else
      puts "failed to save them"
    end    
  end
  
  def post(tweet)
    sleep(15) # sleep. because of twitter api limit
    @poster = tweet[:message] + tweet[:name] +", " + time_lost_in_words(tweet[:date]) +"ago)" + tweet[:link]
    status =@post_client.status(:post, @poster)
  end


end