link_catcher.rb

# LINK CATCHER
#
# usage: set a QUERY of interest, the loop will run a search and
#        retrieve links parsed from tweets to build a ranking of
#        the most popular based on frequency, retweets and favorites
#        at the moment of execution.
#
# Press CTRL+C to stop and show the report
# The more you wait, the more quality you get

# requiring twitter gem (https://github.com/sferik/twitter)
require "twitter"

Twitter.configure do |config|
  config.consumer_key       = "FILL_THIS"
  config.consumer_secret    = "FILL_THIS"
  config.oauth_token        = "FILL_THIS"
  config.oauth_token_secret = "FILL_THIS"
end

QUERY            = "EdMotta" #query string to do a search
REQUEST_INTERVAL = 5      #seconds
@since           = ""
@report          = {}

at_exit do
  puts "\nReport for #{QUERY} - Greater the score, more popular is the link\n\n"

  ranking = @report.sort_by { |link, data| -data[:score] }

  rank = 1
  ranking.each do |link|
    puts "#{rank} | #{link[0]} | frequency: #{link[1][:frequency]} | retweets: #{link[1][:retweets]} | favorites: #{link[1][:favorites]} | score: #{link[1][:score]}"
    rank += 1
  end

  puts "\n\nCheck the report above\n"
end


loop do
  puts "Executing search '#{QUERY}'..."
  tweets = Twitter.search(QUERY, :count => 100, :result_type => "recent", :since_id => @since).results

  puts "  #{tweets.size} tweet(s) retrieved."

  @since = tweets.first.id if !tweets.empty?

  tweets.each do |tweet|

    unless tweet.urls.empty?

      tweet.urls.each do |an_url|
        link_to_catch = an_url.expanded_url || an_url.url
        puts "  " + link_to_catch
        if @report[link_to_catch]
          # existent link, let's sum up things
          @report[link_to_catch][:frequency] += 1
          @report[link_to_catch][:retweets] += tweet.retweet_count
          @report[link_to_catch][:favorites] += tweet.favorite_count
        else
          # new link, let's instantiate
          @report[link_to_catch] = {
            :frequency => 1,
            :retweets  => tweet.retweet_count,
            :favorites => tweet.favorite_count,
            :score     => 0
          }
        end
        @report[link_to_catch][:score] = @report[link_to_catch][:frequency] + @report[link_to_catch][:retweets] + @report[link_to_catch][:favorites]
      end

    end

  end

  puts "Done! Now waiting for #{REQUEST_INTERVAL} seconds..."
  # let's not abuse
  sleep REQUEST_INTERVAL
end