class RorVsWild::Metrics::Cpu::Stat

def self.parse(string)
  for row in string.lines
    if row.start_with?("cpu ")
      array = row.split[1..-1].map(&:to_i)[0,10]
      array.fill(0, array.size, 10 - array.size) if array.size < 10
      return new(*array)
    end
  end
  nil
end

def self.read
  parse(File.read("/proc/stat")) if File.readable?("/proc/stat")
end

def initialize(user, nice, system, idle, iowait, irq, softirq, steal, guest, guest_nice)
  @user = user
  @nice = nice
  @system = system
  @idle = idle
  @iowait = iowait
  @irq = irq
  @softirq = softirq
  @steal = steal
  @guest = guest
  @guest_nice = guest_nice
  @total = user + nice + system + idle + iowait + irq + softirq + steal + guest + guest_nice
end