lurk.rb

require 'koala'
graph = Koala::Facebook::API.new("redacted")

two_weeks_ago = Time.now - (2*7*24*60*60)
members = graph.get_object("355625917946909/members")
member_names = members.map{|mem| mem["name"]}
feed = graph.get_object("355625917946909/feed?fields=from,likes,link,comments.limit(10000000)&limit=10000000&since=#{two_weeks_ago.to_i}")
most_liked = feed.select{|post| !post["likes"].nil? }.sort {|a,b| b["likes"]["data"].size <=> a["likes"]["data"].size}
posters_in_last_two_weeks = feed.map {|post| post["from"]["name"] }.uniq
commenters_in_last_two_weeks = feed.select{|post| !post["comments"].nil?}
                               .map {|post| post["comments"]["data"] }
                               .flatten
                               .select {|comment| !comment["from"].nil? }
                               .map {|comment| comment["from"]["name"] }
                               .uniq

puts "Posters in the last two weeks: \n" + posters_in_last_two_weeks.sort.join("\n  ")
puts "\n\nCommenters in the last two weeks: \n" + commenters_in_last_two_weeks.sort.join("\n  ")
puts "\n\nHaven't commented or posted in two weeks: \n" + (member_names - (commenters_in_last_two_weeks + posters_in_last_two_weeks)).sort.join("\n  ")