從 FB 留言取得抽獎名單給 https://github.com/Neson/RaffleDraw 用

get_draw_list.rb

# Get all commenters from a Facebook post and save the list into a format that
# can be used by https://github.com/Neson/RaffleDraw
#
# Usage:
#   $ ruby get_draw_list.rb <access_token> <post_id> [<end_time>]
#
#   The result will be write into data.js
#
# Args:
#   access_token: (required) A valid access token used to get the infomation
#   post_id: (required) The post's ID
#   end_time: (optional) Set an end time to eliminate commenters that are out
#             over time, format as: '2015/3/12 19:30'
#

require 'net/http'
require 'json'
require 'time'

access_token = ARGV[0]
post_id = ARGV[1]
end_time = ARGV[2]

uri = URI("https://graph.facebook.com/v2.2/#{post_id}/comments?limit=500000&access_token=#{access_token}")
body = Net::HTTP.get(uri)

data = JSON.parse(body)

end_time = (end_time && Time.parse(end_time)) || Time.now

processed_data = data['data']

processed_data.reject! { |c| t = Time.parse(c['created_time']); t > end_time }

commenters = processed_data.map { |d| d['from'] }

commenters.reject! { |c| !c['category'].nil? }

commenters.map! { |c| { fbid: c['id'], name: c['name'] } }

commenters.uniq!

target = File.new('data.js', 'w')

target.write("var data = #{commenters.to_json} ;")

target.close

p 'ok'