ninjablocks.rb

require 'twilio-ruby'
require './creds'

# initialize Twilio client
client = Twilio::REST::Client.new(Creds.ACCOUNT_SID, Creds.AUTH_TOKEN)

# groups all phone numbers based on number of correct answers to trivia questions
pool = [
  [3,  ["a", "b", "c"]],
  [2,  ["d", "e", "f"]],
  [1,  ["g", "h", "i"]],
  [0,  ["j", "k", "l"]]]

# this will be a flat array of phone numbers
lottery = []

pool.each do |row|
  factor = row[0] + 1
  row[1].each do |phonenumber|
    # the more answers you got right, the more times your number appears in the flat array
    lottery += [phonenumber]*factor
  end
end

winner = lottery.sample

client.account.sms.messages.create(from: "xxx", to: winner, body: "You're the winner!")