Julekalender-2018.rb

#!~/.rbenv/shims/ruby

Effpeer = Struct.new(:name, :period) do	
  def available? day
    period.to_a.include? day
  end
end

participants = [
  ['Timar', 1..10],
  ['polarjenta', 1..24],
  ['Eia', 1..24],
  ['ingling', 1..24],
  ['Toffskij', 13..24],
  ['Che', 1..24],
  ['Pamina', 10..20],
  ['Teofelia', 11..24],
  ['Lorien', 16..24],
  ['Fersken', 1..24],
  ['Darth', 1..24],
  ['Taien', 1..24],
  ['Polyanna', 1..24],
  ['Elise', 10..24],
  ['Inagh', 1..24],
  ['Blånn', 1..24],
  ['Enhjørning', 1..24],	
  ['Maverick', 1..24],
  ['Pappalille', 20..24],
  ['Acino', 11..24],
  ['Tink', 1..24],
  ['Albertine', 1..24],	
  ['Stompa', 1..10],
  ['Dali', 17..24],
  ['Skilpadda', 11..24],
  ['IOA', 1..1],
  ['007', 1..24],
  ['Tallulah', 14..24]
]

effpeers = participants.collect {|u| Effpeer.new(u[0], u[1])}

10.times do
  effpeers = effpeers.shuffle
end

days = *1..24
result = Hash.new

days.shuffle.each do |day|
  while !result.key? day do
    participant = effpeers[rand effpeers.size]
    result[day] = participant if participant.available? day
  end
  effpeers = effpeers - [result[day]]
end

(1..24).to_a.each do |day|
  effpeer = result[day]
  puts "#{day}.\t #{effpeer.name}"
end