#!/bin/sh

. /usr/share/libubox/jshn.sh
. /lib/functions/service.sh

DEVLIST=/var/run/gluon-respondd.devs
DAEMON=/usr/bin/respondd

ifname_to_dev () {
	json_load "$(ubus call network.interface.$1 status)"
	json_get_var dev device

	echo "$dev"
}

restart_respondd () {
	SERVICE_USE_PID=1
	SERVICE_WRITE_PID=1
	SERVICE_DAEMONIZE=1

	DEVS=$(cat $DEVLIST | while read dev iface; do echo -n " -i $dev"; done)

	service_stop $DAEMON
	service_start $DAEMON -g ff02::2:1001 -p 1001 -d /lib/gluon/respondd $DEVS
}

case "$ACTION" in
	ifdown)
		sed -i "/$INTERFACE/d" $DEVLIST
		;;
	ifup)
		DEVICE="$(ifname_to_dev "$INTERFACE")"
		MESH="$(cat "/sys/class/net/$DEVICE/batman_adv/mesh_iface" 2>/dev/null)"

		[ "$MESH" = "bat0" -o "$INTERFACE" = "client" ] || exit 0

		DEVS=$(cat $DEVLIST; echo $DEVICE $INTERFACE)

		echo "$DEVS" | sort -u > $DEVLIST

		restart_respondd

		;;
esac