#!/usr/bin/env bash
##
# Copyright (C) 2013-2016 Janek Bevendorff
# Website: http://www.refining-linux.org/
# 
# Log to appropriate syslog facility.
# 
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
##

if [ "$2" == "" ] ; then
	echo "Usage: $(basename $0) <info|warn|err> <message>"
	exit
fi

if [ "$1" != "info" ] && [ "$1" != "warn" ] && [ "$1" != "err" ]; then
	echo "Invalid log priority '$1'. Choose from <info|warn|err>."
	exit 1
fi

distribution=$(rs-detect-distribution)

if [[ "Synology" == "${distribution}" ]]; then
	# Use Synology's crappy synologd if we're on DSM
	synologset1 sys $1 0x99000001 "$2"
else
	# Any other distribution
	command -v logger > /dev/null
	if [ $? -eq 0 ]; then
		logger -p $1 -t rs-backup-server "$2"
	else
		# Log to STDOUT/STDERR if we have no syslog facility
		if [ "$1" == "err" ]; then
			echo "ERROR: $2" >&2
		elif [ "$1" == "warn" ]; then
			echo "WARNING: $2" >&2
		else
			echo "INFO: $2"
		fi
	fi
fi