#! /bin/bash
#
# Copyright (C) 2020 Laurent Poujoulat <lpoujoulat@april.org>
#
# This file is part of valise.chapril.org
#
# This script is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# ================================================
# This checks for updates of nextcloud components.
# If any update is present, they are listed in human readable form on stdout, and 1 is returned,
# and if everything is OK, tell it on stdout "OK", and returns 0.
# ================================================

# Configuration data
CURL_CREDENTIAL="/etc/valise.chapril.org/curl_credential"

# Extract a json value by path (given as argument)
# The global JSON state is expected to be in NEXTCLOUD_STATE
# Only give the path part within the ocs.data  section
getNcState()
{
    echo ${NEXTCLOUD_STATE} | jq ".ocs.data.$1"
}

# Returns script usage
function usage() 
{
	echo "Usage: $(basename $0)"
}


# Main entry point
EXIT_RESULT=1

# Read and store the current service state
NEXTCLOUD_STATE=`curl --silent --netrc-file ${CURL_CREDENTIAL} http://localhost/ocs/v2.php/apps/serverinfo/api/v1/info?format=json`

if [ "$#" -ne 0 ]
then
	usage
else

	# Read and store the current service state
	NEXTCLOUD_STATE=`curl --silent --netrc-file ${CURL_CREDENTIAL} http://localhost/ocs/v2.php/apps/serverinfo/api/v1/info?format=json`

	getNcState "nextcloud.system.apps.num_updates_available"
fi

exit ${EXIT_RESULT}