#!/usr/bin/env ruby

require "English"

def output_config
  puts <<-END
graph_category passenger
graph_title Passenger processes
graph_order active inactive
graph_vlabel processes
graph_total total

active.label busy servers
active.draw AREA
inactive.label idle servers
inactive.draw STACK
END
  exit 0
end

def output_values
  status = `/usr/sbin/passenger-status`
  unless $CHILD_STATUS.success?
    $stderr.puts "failed executing passenger-status"
    exit 1
  end
  status =~ /active\s+=\s+(\d+)/
  puts "active.value #{Regexp.last_match[1]}"

  status =~ /inactive\s+=\s+(\d+)/
  puts "inactive.value #{Regexp.last_match[1]}"
end

if ARGV[0] == "config"
  output_config
else
  output_values
end