#---
# Excerpted from "Programming Elixir 1.3",
# published by The Pragmatic Bookshelf.
# Copyrights apply to this code. It may not be used to create training material,
# courses, books, articles, and the like. Contact us if you are in doubt.
# We make no guarantees that this code is fit for any purpose.
# Visit http://www.pragmaticprogrammer.com/titles/elixir13 for more book information.
#---
people = [
  %{ name: "Grumpy",    height: 1.24 },
  %{ name: "Dave",      height: 1.88 },
  %{ name: "Dopey",     height: 1.32 },
  %{ name: "Shaquille", height: 2.16 },
  %{ name: "Sneezy",    height: 1.28 }
]

defmodule HotelRoom do

  def book(%{name: name, height: height})
  when height > 1.9 do
    IO.puts "Need extra long bed for #{name}"
  end

  def book(%{name: name, height: height})
  when height < 1.3 do
    IO.puts "Need low shower controls for #{name}"
  end

  def book(person) do
    IO.puts "Need regular bed for #{person.name}"
  end

end

people |> Enum.each(&HotelRoom.book/1)

#=> Need low shower controls for Grumpy
#   Need regular bed for Dave
#   Need regular bed for Dopey
#   Need extra long bed for Shaquille
#   Need low shower controls for Sneezy
