#!/bin/sh

set -e

: << =cut

=head1 NAME

onlyoffice - Monitor usage (editing and viewing connections) of onlyoffice

=head1 APPLICABLE SYSTEMS

OnlyOffice instances

=head1 CONFIGURATION

Requires installed curl and jq.

=head1 AUTHOR

Copyright (C) 2023 Sebastian L. (https://momou.ch)

=head1 LICENSE

GPLv2

=head1 MAGIC MARKERS

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

=cut

. "$MUNIN_LIBDIR/plugins/plugin.sh"

INFO_URL=${url:-"http://127.0.0.1/info/info.json"}
TIMEOUT="${timeout:-2}"

fetch_url () {
    curl -s -f -m "${TIMEOUT}" "$@"
}

case $1 in
	autoconf)
		if [ ! -x "$(command -v curl)" ]; then
			echo "no (curl not found)"
		elif [ ! -x "$(command -v jq)" ]; then
			echo "no (jq not found)"
		else
			fetch_url -I "${INFO_URL}" \
				| grep -iq "Content-Type: application/json" \
				&& echo "yes" \
				|| echo "no (invalid or empty response from onlyoffice info api)"
		fi
		exit 0
		;;

	config)
		echo "multigraph onlyoffice_usage"
		echo "graph_title OnlyOffice usage"
		echo "graph_category appserver"
		echo "graph_vlabel connections"
		echo "graph_info This graph shows current editing and viewing connections."
		echo "graph_args --base 1000 --lower-limit 0"
		echo "edits.label editing"
		echo "edits.info Current number of editing connections"
		echo "edits.min 0"
		echo "views.label viewing"
		echo "views.info Current number of viewing connections"
		echo "views.min 0"
		exit 0
		;;

esac

INFOS=$(fetch_url "$INFO_URL")
echo "multigraph onlyoffice_usage"
echo "edits.value $(echo "$INFOS" | jq .quota.edit.connectionsCount)"
echo "views.value $(echo "$INFOS" | jq .quota.view.connectionsCount)"