#!/bin/sh

# Copyright (C) 2020-2021 Franco Fichtner <franco@opnsense.org>
# Copyright (C) 2005 Scott Ullrich <sullrich@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

BEEPDIR="/usr/local/etc/opnsense-beep.d"
COMMAND=${1}

if [ -z "${COMMAND}" ]; then
	COMMAND=low
fi

while getopts "" OPT; do
	case ${OPT} in
	*)
		echo "Usage: man ${0##*/}" >&2
		exit 1
		;;
	esac
done

shift $((OPTIND - 1))

if [ ! -c "/dev/speaker" ]; then
	exit 1
fi

if [ -f /conf/config.xml ]; then
	if [ "$(/usr/bin/grep -c disablebeep /conf/config.xml)" != "0" ]; then
		exit
	fi
fi

BEEPFILE="${BEEPDIR}/${COMMAND}"

if [ -f "${BEEPFILE}.local" ]; then
	BEEPFILE="${BEEPFILE}.local"
fi

if [ ! -f "${BEEPFILE}" ]; then
	exit 1
fi

(
	if /usr/local/bin/flock 9; then
		cat "${BEEPFILE}" | while read NOTE DURATION; do
			/usr/local/bin/beep -p "${NOTE}" "${DURATION}"
		done
	fi
) 9< ${BEEPDIR}/start
