who do I interact with most on Twitter?

top_interactors.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'grackle'
require 'pp'

STATUSES_MAX = 200
PAGE_MAX = 5
client = Grackle::Client.new

name = (ARGV[0] ? ARGV[0] : "damon")
puts "Who does #{name} interact with most?"

all_statuses = []
page = 1
while !(statuses = client.statuses.user_timeline? :screen_name=>name, :page => page, :count => STATUSES_MAX).nil? && page <=PAGE_MAX
  all_statuses << statuses
  page += 1
  sleep 1
end
all_statuses.flatten!
  
interactors = {}
all_statuses.each do |status|
  sn = status.in_reply_to_screen_name
  if sn
    interactors[sn] = (interactors[sn] ? 1 : interactors[sn] + 1)
  end
end

result = []
interactors.each_pair do |k,v|
  result << "#{v}-#{k}"
end
pp result.sort.reverse