module NetworkTester

# File lib/network_tester.rb, line 6
def loop(max_count=nil, addr='google.com', maxtime=70)
  count = 1
  while (max_count.nil? or count<max_count)
    time = pingr(addr)
    if time.nil?
      puts "#{' '*50}error"
    else
      time = Integer(Float(time))
      puts "#{'*'*(Integer(time/5))} #{time}"
    end
    notifier(time, maxtime)
    sleep 1
  end
rescue Interrupt
end

# File lib/network_tester.rb, line 63
def mac?
  `uname -s`.chomp=='Darwin'
end

# File lib/network_tester.rb, line 40
def notifier(time, maxtime=70)
  if time.nil?
    return notify('error')
  end

  time = Float(time)
  if time < 10
    # notify('sweet')
  elsif time > maxtime
    notify(Integer(time), Integer(time)*2)
  end
  time
end

# File lib/network_tester.rb, line 54
def notify(msg='da', rate=600)
  if mac?
    `say #{msg.inspect} -r #{[rate,400].max}`
  else
    puts "\a#{' '*20}#{'-'*10} too long: #{msg.inspect}"
  end
  msg
end

# File lib/network_tester.rb, line 22
def pingr(addr='google.com')
  timeout_arg = mac? ? '-t' : '-W'
  cmd = "ping -c 1 #{timeout_arg} 1 #{addr} "
  result = `#{cmd} 2>/dev/null`
  timerow = nil
  result.split("\n").detect do |r|
    if r.match(/time/)
      timerow = r.match(/cmp_seq.*time=([^ ]*)/)
    end
  end

  if timerow.nil?
    nil
  else
    timerow[1] 
  end
end