#!/bin/bash

# modify by Puppet !!!
# verze:2.1
# defunije funkce pushLog() Notify() makePID() removePID()
# autor: Ales Cernik
#

myScript=${0##*/}
#myPath="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" #"
export logDir=${logDir:="/opt/log"}
[ ! -d $logDir ] && logDir="/srv/log"
[ ! -d $logDir ] && { "Neexistuje $logDir"; exit 1;}
logFile=${logDir}/${myScript}.log
myHost=$(/bin/hostname -a)
NAGIOSHOST="centreon.bisnode.cz"
lock_file=/tmp/${myScript}.pid

pushLog () {
  echo "$1 $2 $3 $4 $5 $6 $7 $8 $9" >>$logFile
}

Notify () { # $1 - status 0=OK, 1=Warning, 2=Error $2 message
  if [ ${NAGIOSHOST} != "" ]; then
    pushLog $2
    /bin/echo -e "${myHost};${myScript};${1};${2}" | /usr/sbin/send_nsca -H ${NAGIOSHOST} -d \;
  fi
}

## vyhradni spousteni procesu
makePID () {
  cat /dev/null >> $lock_file || { Notify 2  "nelze udelat PID file"; exit 1;}
  read lastPID < $lock_file
# if lastPID is not null and a process with that pid exists , exit
  [ ! -z "$lastPID" -a -d /proc/$lastPID ] && exit
  [ -z $$ ] &&  { Notify 2  "Chybi PID parametr" ; exit 1; }
  echo $$ > $lock_file ||  { Notify 2  "Nelze zapsat PID" ; exit 1; }
}

removePID () {
  rm $lock_file
}