#!/bin/sh

set -eu

sitezone="$1"

vpn_type="$2"

cfg_script="$0"

cfg_srcdir=$(cd -- "${cfg_script%/*}/" ; pwd -P)

source /root/config/private/config/server.ports

source /root/config/private/config/hostinfo/${sitezone}

if [ ${vpn_type} = 'primary' ]; then

	vpn_tunnel=tun0

	ipv6_subnet=8000

	if [ ${vpn_route_all} = 'yes' ]; then

		vpn_route_all_subst='s/^@vpn_route_all@ //g'

	else

		vpn_route_all_subst='/^@vpn_route_all@ /d'

	fi

	sed -e 's/@vpn_tunnel@/'${vpn_tunnel}'/g' \

		-e 's/@vpn_type@/'${vpn_type}'/g'  \

		-e 's/@vpn_port@/'${vpn_port}'/g'   \

		-e 's/@hostname@/'${hostname}'/g'    \

		-e 's/@vpn_net4@/'${vpn_net4}'/g'     \

		-e 's/@vpn_ipv4@/'${vpn_ipv4}'/g'      \

		-e 's/@host_ipv4@/'${host_ipv4}'/g'     \

		-e 's/@host_ipv6@/'${host_ipv6}'/g'      \

		-e 's/@ipv6_subnet@/'${ipv6_subnet}'/g'   \

		-e "${vpn_route_all_subst}"                \

		"${cfg_srcdir}/hostvpn.conf.in"

elif [ ${vpn_type} = 'secondary' ]; then

	vpn_tunnel=tun1

	ipv6_subnet=c000

	if [ ${avpn_route_all} = 'yes' ]; then

		vpn_route_all_subst='s/^@vpn_route_all@ //g'

	else

		vpn_route_all_subst='/^@vpn_route_all@ /d'

	fi

	sed -e 's/@vpn_tunnel@/'${vpn_tunnel}'/g' \

		-e 's/@vpn_type@/'${vpn_type}'/g'  \

		-e 's/@vpn_port@/'${avpn_port}'/g'  \

		-e 's/@hostname@/'${hostname}'/g'    \

		-e 's/@vpn_net4@/'${avpn_net4}'/g'    \

		-e 's/@vpn_ipv4@/'${avpn_ipv4}'/g'     \

		-e 's/@host_ipv4@/'${host_ipv4}'/g'     \

		-e 's/@host_ipv6@/'${host_ipv6}'/g'      \

		-e 's/@ipv6_subnet@/'${ipv6_subnet}'/g'   \

		-e "${vpn_route_all_subst}"                \

		"${cfg_srcdir}/hostvpn.conf.in"

else

	printf '%s\n' 'usage: ./hostvpn-conf.sh sitezone {primary|secondary}'

	exit 2

fi