#!/bin/sh

: << =cut
=head1 NAME

icinga_checks - Plugin to monitor results of icinga monitoring

=head1 CONFIGURATION

No configuration

=head1 AUTHORS

Copyright (C) 2019 mafri (with help from sumpfralle and ndo84bw)

=head1 LICENSE

GNU General Public License v3.0 only

SPDX-License-Identifier: GPL-3.0-only

=head1 MAGIC MARKERS

 #%# family=auto
 #%# capabilities=autoconf

=cut

ICINGACLI=${ICINGACLI:-$(command -v icingacli)}
JQ=${JQ:-$(command -v  jq)}


if [ "$1" = "autoconf" ] ; then
    if [ ! -x "$ICINGACLI" ]; then
        echo "no (could not find 'icingacli')"
    elif [ ! -x "$JQ" ]; then
        echo "no (could not find 'jq')"
    else
        echo "yes"
    fi
    exit
fi

set -e

if [ "$1" = "config" ]; then

    echo "multigraph icinga_host_checks"
    echo "graph_title Icinga Host Checks"
    echo 'graph_args --base 1000'
    echo 'graph_vlabel Count'
    echo 'graph_category icinga'
    echo "up.label Up"
    echo "down.label Down"
    echo "unreachable.label Unreachable"
    echo "pending.label Pending"
    echo "up.draw AREA"    
    echo "down.draw STACK"
    echo "unreachable.draw STACK"
    echo "pending.draw STACK"


    echo "multigraph icinga_service_checks"
    echo "graph_title Icinga Service Checks"
    echo 'graph_args --base 1000'
    echo 'graph_vlabel Count'
    echo 'graph_category icinga'
    echo "ok.label Ok"
    echo "warning.label Warning"
    echo "critical.label Critical"
    echo "unknown.label Unknown"
    echo "pending.label Pending"
    echo "ok.draw AREA"
    echo "warning.draw STACK"
    echo "critical.draw STACK"
    echo "unknown.draw STACK"
    echo "pending.draw STACK"

    exit
fi

if [ ! -x "$ICINGACLI" ]; then
    echo "could not find 'icingacli'" >&2
    exit 1
elif [ ! -x "$JQ" ]; then
    echo "could not find 'jq'" >&2
    exit 1
fi

output=$("$ICINGACLI" monitoring list hosts --format=json)
host_up=$(    echo "$output" | "$JQ" -r '.[] | select(.host_state == 0) | .host_name'  | wc -l )
host_down=$(  echo "$output" | "$JQ" -r '.[] | select(.host_state == 1) | .host_name'  | wc -l )
host_pend=$(  echo "$output" | "$JQ" -r '.[] | select(.host_state == 2) | .host_name'  | wc -l )
host_unre=$(  echo "$output" | "$JQ" -r '.[] | select(.host_state == 3) | .host_name'  | wc -l )

echo "multigraph icinga_host_checks"
echo "up.value $host_up"
echo "down.value $host_down"
echo "pending.value $host_pend"
echo "unreachable.value $host_unre"

output=$("$ICINGACLI" monitoring list services --format=json)
service_ok=$(  echo "$output" | "$JQ" -r '.[] | select(.service_state == 0) | .host_name + .service_name'  | wc -l )
service_warn=$(echo "$output" | "$JQ" -r '.[] | select(.service_state == 1) | .host_name + .service_name'  | wc -l )
service_crit=$(echo "$output" | "$JQ" -r '.[] | select(.service_state == 2) | .host_name + .service_name'  | wc -l )
service_pend=$(echo "$output" | "$JQ" -r '.[] | select(.service_state == 3) | .host_name + .service_name'  | wc -l )
service_unkn=$(echo "$output" | "$JQ" -r '.[] | select(.service_state == 4) | .host_name + .service_name'  | wc -l )

echo "multigraph icinga_service_checks"
echo "ok.value $service_ok"
echo "warning.value $service_warn"
echo "critical.value $service_crit"
echo "unknown.value $service_unkn"
echo "pending.value $service_pend"