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require "os"

module Hardware
  class CPU
    INTEL_32BIT_ARCHS = [:i386].freeze
    INTEL_64BIT_ARCHS = [:x86_64].freeze
    PPC_32BIT_ARCHS   = [:ppc, :ppc7400, :ppc7450, :ppc970].freeze
    PPC_64BIT_ARCHS   = [:ppc64].freeze

    class << self
      def type
        :dunno
      end

      def family
        :dunno
      end

      def cores
        1
      end

      def bits
        64
      end

      def is_32_bit?
        bits == 32
      end

      def is_64_bit?
        bits == 64
      end

      def intel?
        type == :intel
      end

      def ppc?
        type == :ppc
      end

      def features
        []
      end

      def feature?(name)
        features.include?(name)
      end
    end
  end

  def self.cores_as_words
    case Hardware::CPU.cores
    when 1 then "single"
    when 2 then "dual"
    when 4 then "quad"
    when 6 then "hexa"
    when 8 then "octa"
    else
      Hardware::CPU.cores
    end
  end

  def self.oldest_cpu
    if Hardware::CPU.intel?
      if Hardware::CPU.is_64_bit?
        :core2
      else
        :core
      end
    else
      Hardware::CPU.family
    end
  end
end

require "extend/os/hardware"