Discrimination made easy!

pecha.rb

NUM_POOLS = 5

Grad = Struct.new :name, :gender, :region

def norm_name first, last
  "#{first.strip} #{last.strip}"
end

def norm_gender gender
  {'M' => 'Male', 'F' => 'Female'}[gender] || gender
end

def norm_region region
  region
end

def sort_hashes(hashes, keys)
  hashes.sort do |a, b|
    a_keys = keys.map { |k| a.members.index k.to_s }
    b_keys = keys.map { |k| b.members.index k.to_s }

    a.values_at(*a_keys) <=> b.values_at(*b_keys)
  end
end

grads = $<.map do |l|
  name_first, name_last, gender, region, office, role, email_p, email_tw, phone, coach, team = l.split("\t")

  Grad.new norm_name(name_first, name_last), norm_gender(gender), norm_region(region)
end.shuffle

puts sort_hashes(grads, [:gender, :region]) \
  .each_with_index \
  .group_by { |o, i| i % NUM_POOLS } \
  .values \
  .map { |pool| pool.shuffle.map { |g, i| g.name }.join "\n" } \
  .join "\n\n"