module System
  def self.detect_os
    case RUBY_PLATFORM
    when /darwin/
      :macos
    when /linux/
      if File.exist?('/etc/debian_version')
        :debian
      else
        :linux_other
      end
    else
      :unknown
    end
  end

  OS = detect_os

  case OS
    
  when :macos
    require_relative './system/macos'
    extend MacOSSystem
  when :debian
    require_relative './system/debian'
    extend DebianSystem
  else
    raise "Operating system not supported"
  end

  def self.os_info
    puts os_name
  end
end