A secret Santa name assigner.

cast.json

[
  // fusion
  "Ashlynn Broedling",
  "Ben Phipps",
  "Ben Reineke",
  "Danni McClendon",
  "Eric Turner",
  "Imani Terrell",
  "Jean Joo",
  "Jesse Herrick",
  "Kaleb Murdock",
  "Katie Breslin",
  "Luke Sheidler",
  "Maddie Moore",
  "Mark Howard",
  "Matthew Koehler",
  "Megan Good",
  "Phil Rupp",
  "Seth Eggenschwiller",
  "Taylor Siebert"
  "Trevor Ginsberg",

  // eleventh hour
  "Brody McDonald",
  "Dani Carrington",
  "Libby Groll",
  "Lilly Eggenschwiller",
  "Alex Wunder",
  "Daniel Pedro",
  "Sam Gyenes",
  "Rachel Dunn",
  "Joe Schlangen"
]

secret-santa.rb

require 'json'

class Santa
  attr_accessor :list
  def initialize(names)
    self.list = {}

    @names = names

    # compile list of names
    pick_all do |name|
      pick_name name
    end
  end

  def find(name)
    name_assignment = self.list.keys.select { |key| key.match /#{name}/i }

    if name_assignment.count > 1
      name_assignment.each_with_index do |n, i|
        print "Are you #{n}? (y/n) "
        if $stdin.gets.chomp.match(/y/i)
          # return final assignment
          return self.list[name_assignment[i]]
        else
          next
        end
      end
    elsif name_assignment.count == 0
      puts "I'm sorry, #{name}. You're not on the list."
    else
      return self.list[name_assignment.first]
    end
  end

  def pick_name(name, names = @names, picked = self.list)
    partner = names.sample
    if partner == name
      pick_name(name)
    elsif picked[name]
      picked[name]
    elsif picked.values.include? partner
      pick_name(name)
    else
      picked[name] = partner
    end

    { name => picked[name] }
  end

  def pick_all
    @names.each { |name| yield name }
  end

  def to_json
    self.list.to_json
  end

  # the cli
  def cli
    trap('SIGINT') { exit }

    print "Type your name: "
    @name = $stdin.gets.chomp
    cli if @name.empty?

    puts "Assigned to: #{find(@name) || 'Nobody :('}"
    puts "Press ENTER when ready."
    $stdin.gets
    print `clear`
    cli
  end
end

cast = JSON.parse File.read('cast.json')
santa = Santa.new(cast)
santa.cli