module User::Named
  extend ActiveSupport::Concern

  included do
    scope :alphabetically, -> { order("lower(name)") }
  end

  def first_name
    name.split(/\s/).first
  end

  def last_name
    name.split(/\s/, 2).last
  end

  def initials
    name.scan(/\b\p{L}/).join.upcase
  end

  def familiar_name
    names = name.split
    return name if names.length == 1
    "#{names.first} #{names[1..].map { |n| "#{n[0]}." }.join}"
  end
end