#!/bin/sh

pidFile="/var/run/babeld-route-share-daemon.pid"

. /etc/babeld/babeld-route-share-daemon.conf

start()
{
	[ -f ${pidFile} ] && pid=$(cat ${pidFile}) && ps ${pid} | grep -q ${0} ||
	{
		while sleep $check_interval
		do
			echo "${shared_routes}" | while read line
			do
				echo ${line} | grep -q , || continue

				tryCount=0
				failCount=0

				destination="$(echo ${line}  | awk -F, '{print $1}')"
				routeOptions="$(echo ${line} | awk -F, '{print $2}')"
				checkHosts="$(echo ${line}   | awk -F, '{print $3}')"
				strictCheck=$(echo ${line}   | awk -F, '{print $4}')

				for host in ${checkHosts}
				do
					ipv6=""
					fullMaskCidr=32
					echo ${host} | grep -q : && ipv6="6" && fullMaskCidr=128

					ip route add ${host}/${fullMaskCidr} ${routeOptions} proto ${test_proto} || true
					ping${ipv6} -c 5 -q $host || failCount=$((failCount+1))
					tryCount=$((tryCount+1))
					ip route del ${host}/${fullMaskCidr} ${routeOptions} proto ${test_proto} || true
				done

				[ ${strictCheck} -eq 1 ] && [ ${failCount} -gt 0  ] &&
				{
					# echo "ip route del ${route}"
					ip route del ${destination} ${routeOptions} && killall --signal SIGUSR2 babeld || true
					continue
				}

				[ ${failCount} -ge ${tryCount} ] &&
				{
					#echo "ip route del ${route}"
					ip route del ${destination} ${routeOptions} && killall --signal SIGUSR2 babeld || true
					continue
				}

				#echo  "ip route add ${route}"
				ip route add ${destination} ${routeOptions} && killall --signal SIGUSR2 babeld || true
			done &> /dev/null
		done &
		echo $! > ${pidFile}

		return 0
	}

	return 1
}

stop()
{
	[ -f ${pidFile} ] && pid=$(cat ${pidFile}) && $(ps ${pid} | grep -q ${0}) &&
	{

		kill ${pid}

		sleep 3s

		rm ${pidFile}

		echo "${shared_routes}" | while read line
		do
			echo ${line} | grep -q , || continue

			destination="$(echo ${line} | awk -F, '{print $1}')"
			routeOptions="$(echo ${line} | awk -F, '{print $2}')"
			checkHosts="$(echo ${line} | awk -F, '{print $3}')" 

			for host in ${checkHosts}
			do
				fullMaskCidr=32
				echo ${host} | grep -q : && fullMaskCidr=128
				ip route del ${host}/${fullMaskCidr} ${routeOptions} proto ${test_proto} || true
			done

			ip route del ${destination} ${routeOptions} || true
		done &> /dev/null

		return 0
	}

	return 1
}

[ "${1}" = "start" ] && start && exit 0
[ "${1}" = "stop"  ] && stop  && exit 0

exit 1