#!/usr/bin/env bash
# $Id$

# a wrapper script, to run puppetd after a random time
# this will be called by cron at the same time on each client,
# but should not call the master at the same time as the others.

<% if norunifloggedin == true -%>
  # not running if users are logged in 
  [[ $(who|wc -l) -gt 0 ]] && exit 0
<% end -%>

export FACTERLIB="<%= scope.lookupvar("factpath") %>"
PATH="/opt/local/bin:/opt/local/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
PUPPET=$(which puppetd) 
[[ -e ${PUPPET} ]] || exit 1
ISUNIIP=$(ifconfig |grep -c -e "131\.173\.3[2345]")
PIDF="/tmp/puppetd_run.pid"

function cleanup {
  [[ -e ${PIDF} ]] && rm -f ${PIDF}
  exit 0
}

if [ -e ${PIDF} ]; then
  PID=`cat ${PIDF}`
  if [ $(ps -eo pid |grep -c ${PID}) -gt 1 ]; then
    exit 0
  fi
fi
# write our pid
echo -n $$ >${PIDF}

if [ ${ISUNIIP} -gt 0 ]; then
	if [ -e ${PUPPET} ]; then
		#mac os X laptop check
		if [ -e /usr/bin/pmset ]; then
                if [ $(/usr/bin/pmset -g batt | grep -c "Battery Power") -eq 1 ]; then
                        #we are running on battery and do not want to do anything
                       cleanup 
                fi
        fi
        #Linux laptop check
        if [ -e /proc/acpi/ac_adapter/AC/state ]; then
                if [ $(grep -c "on-line" /proc/acpi/ac_adapter/AC/state) -eq 0 ]; then
                        #we are running on battery and do not want to do anything
		      cleanup
		    fi
        fi
        
		MAXSLEEP=<%= maxsleep %>	  #How many seconds to wait maximally
		SLEEP=${RANDOM}
		I=${RANDOM}

		# $RANDOM must be called several times, to ensure it really
		# is something like random
		for x in 1 2 3 4 5 6 7 8 9 10 11 12; do
			SLEEP=${RANDOM}
		done
		# wait maximally $MAXSLEEP seconds
		sleep $(expr ${SLEEP} % ${MAXSLEEP})
		# run puppetd
		nice -n 12 $PUPPET -t 2&>/var/log/puppet/puppetd_run.log
	fi
fi
# cleanup the pidfile
cleanup