random_picker_2000.rb

require 'rubygems'
require 'json'
require 'pry'
require 'open-uri'

filename = ARGV[0]

if !filename || filename == ''
  puts 'Give the path to JSON comments file as downloaded from e.g. https://www.reddit.com/r/RandomActsOfGaming/comments/4ijyqj.json'
  exit 1
end

# As in: https://www.reddit.com/r/patientgamers/comments/3bqoq8
comment_json = JSON.parse(File.read(filename))
comment_nodes = comment_json.last['data']['children']

comment_data = comment_nodes.collect do |node|
  node['data']
end

comments = comment_data.map do |data|
  { author: data['author'],
    comment: data['body'] }
end

puts "Found #{comments.count} authors, selecting one randomly:\n\n"

winner = comments.sample
puts "And the winner is: /u/#{winner[:author]}, saying '#{winner[:comment]}'"