module Terraformer
  class UserInputError < RuntimeError
  end

  class UserInputMaxAttemptsError < RuntimeError
  end

  class UserInput
    MAX_ATTEMPTS = 10

    class << self
      def get_input
        response = gets
        response.chomp
      end

      def ask(message, success, failure)
        (0..MAX_ATTEMPTS).each do |i|
          puts "#{message} [#{success}/#{failure}]"
          response = get_input

          if response.downcase == success.downcase || response == ""
            return true
          elsif response.downcase == failure.downcase
            puts "Exiting"
            raise UserInputError
          end
        end
        raise UserInputMaxAttemptsError
      end
    end 
  end
end