module Eyecare

# File lib/eyecare.rb, line 58
def alert
  Alert.instance.init(config[:alert])
end

# File lib/eyecare.rb, line 62
def config
  return @config if @config

  config_file = File.expand_path(config_path)

  if File.exists?(config_file) && File.file?(config_file) && File.readable?(config_file)
    @config = Config.load_from_file(config_file)
  end

  @config ||= Config.new
end

# File lib/eyecare.rb, line 40
def run
  Daemon.start(config[:pid_file]) do
    while true
      seconds = config[:alert][:interval]
      while seconds > 0
        proc_name('Eyecare - %s' % ChronicDuration.output(seconds, :format => :short))
        seconds -= 1
        sleep(1)
      end
      alert.show
    end
  end
end

# File lib/eyecare.rb, line 54
def stop
  Daemon.stop(config[:pid_file])
end

# File lib/eyecare.rb, line 75
def proc_name(name)
  $0 = name
  return false unless self.respond_to?(:prctl)

  name = name.slice(0, 16)
  ptr = FFI::MemoryPointer.from_string(name)
  self.prctl(15, ptr.address, 0, 0)
ensure
  ptr.free if ptr
end