pet-name.rb

require 'json'

def output(pet_names)
  pet_names.each do |pet_name|
    print sanitize(pet_name)
    print "-" unless pet_name == pet_names.last
  end
end

def sanitize(string)
  string.tr(
    "ÀÁÂÃÄÅàáâãäåĀāĂ㥹ÇçĆćĈĉĊċČčÐðĎďĐđÈÉÊËèéêëĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħÌÍÎÏìíîïĨĩĪīĬĭĮįİıĴĵĶķĸĹĺĻļĽľĿŀŁłÑñŃńŅņŇňʼnŊŋÒÓÔÕÖØòóôõöøŌōŎŏŐőŔŕŖŗŘřŚśŜŝŞşŠšſŢţŤťŦŧÙÚÛÜùúûüŨũŪūŬŭŮůŰűŲųŴŵÝýÿŶŷŸŹźŻżŽž",
    "AAAAAAaaaaaaAaAaAaCcCcCcCcCcDdDdDdEEEEeeeeEeEeEeEeEeGgGgGgGgHhHhIIIIiiiiIiIiIiIiIiJjKkkLlLlLlLlLlNnNnNnNnnNnOOOOOOooooooOoOoOoRrRrRrSsSsSsSssTtTtTtUUUUuuuuUuUuUuUuUuUuWwYyyYyYZzZzZz"
  )
end

DEFAULT_PET_NAME_COUNT = 2
pet_name_count = Integer(ARGV[0] || DEFAULT_PET_NAME_COUNT)

raw_greetings = File.read('saludos.json')
greetings = JSON.parse(raw_greetings)

pet_names = []
pet_name_count.times do
  pet_names << greetings.delete_at(rand(greetings.length))
end

output(pet_names)