#! /bin/sh
#
# Skript zum Kontrollieren der NagVis Mappen ob diese Objekte im Monitoring noch existieren:
# - Hosts
# - Hostgruppen
# - NagVis Mappen
# - Services
#
# Version: 1.0.0
#
# Author: 2025/09/30 Juergen Vigna <juergen.vigna@wuerth-it.com>
#
# Changed:
#

export TERM=xterm
TMPFILE=$(mktemp)
OUTFILE=$(mktemp)
MTMPFILE=$(mktemp)
HTMPFILE=$(mktemp)
HGTMPFILE=$(mktemp)
STMPFILE=$(mktemp)
CLICMD="/usr/bin/icingacli"
MAPDIR="/neteye/shared/nagvis/conf/maps"

trap 'rm -f $TMPFILE $OUTFILE $MTMPFILE $HTMPFILE $HGTMPFILE $STMPFILE; exit 1' 1 2 15
trap 'rm -f $TMPFILE $OUTFILE $MTMPFILE $HTMPFILE $HGTMPFILE $STMPFILE' 0

ls -1 $MAPDIR/*.cfg >$MTMPFILE
${CLICMD} monitoring list hosts | awk '{print $2}' | sed -e 's/:$//g' >$HTMPFILE
${CLICMD} director hostgroups list >$HGTMPFILE
${CLICMD} monitoring list services --format json | jq -r '.[] | .host_name + ";" + .service_description' >$STMPFILE

i=0
while read mapfile
do
	MAP=$(basename $mapfile)
	if echo "$MAP" | grep '^Vorlage' >/dev/null
	then
		continue
	fi
	OUNKNOWN=""
	#
	# First check host objects
	#
	for o in $(grep -e "^host_name" $mapfile | cut -d= -f2 | cut -d# -f1 | tr -d '\r' | tr  ' ' '#' )
	do
		o=${o//#/ }
		if ! egrep "^$o\$" $HTMPFILE >/dev/null
		then
			OUNKNOWN="$OUNKNOWN,HOST:$o"
		fi
	done

	#
	# Second check hostgroup objects
	#
	for o in $(grep -e "^hostgroup_name" $mapfile | cut -d= -f2 | cut -d# -f1 | tr -d '\r' | tr  ' ' '#' )
	do
		o=${o//#/ }
		if ! egrep "^$o\$" $HGTMPFILE >/dev/null
		then
			OUNKNOWN="$OUNKNOWN,HOSTGROUP:$o"
		fi
	done

	#
	# Third check map objects
	#
	for o in $(grep -e "^map_name" $mapfile | cut -d= -f2 | cut -d# -f1 | tr -d '\r' | tr  ' ' '#' )
	do
		o=${o//#/ }
		if ! egrep "/${o}.cfg" $MTMPFILE >/dev/null
		then
			OUNKNOWN="$OUNKNOWN,MAP:${o}.cfg"
		fi
	done
	
	#
	# Fourth check service objects
	#
	grep -B 1 "^service_description" $mapfile | grep -v '^--' | sed 'N;/\nservice_description/s/\n/;/;P;D' | sed -e 's/host_name=//g' -e 's/service_description=//g' >$TMPFILE
	while read o
	do
		if ! egrep "${o}" $STMPFILE >/dev/null
		then
			OUNKNOWN="$OUNKNOWN,SERVICE:${o}"
		fi
	done < $TMPFILE
	if [ -n "$OUNKNOWN" ]
	then
		OUNKNOWN=$(echo "$OUNKNOWN" | cut -c 2-)
		echo "ERROR - $MAP - Missing Objects: $OUNKNOWN" >> $OUTFILE
	fi
done < $MTMPFILE

if [ -s $OUTFILE ]
then
	echo "CRITICAL - Missing objects in NagVis Mapfiles"
	cat $OUTFILE
	exit 2
fi

echo "OK - No missing objects in NagVis Mapfiles"
exit 0