#!/bin/sh
# shellcheck disable=SC3037,SC3043

readonly pbrFunctionsFile='/etc/init.d/pbr'
if [ -s "$pbrFunctionsFile" ]; then
# shellcheck source=../../etc/init.d/pbr
	. "$pbrFunctionsFile"
else
	printf "%b: pbr init.d file (%s) not found! \n" '\033[0;31mERROR\033[0m' "$pbrFunctionsFile"
fi

# shellcheck disable=SC2317
pbr_iface_setup() {
	local iface="${1}"
	local proto
	config_get proto "${iface}" proto
	case "${iface}" in
		(lan|loopback) return 0 ;;
	esac
	case "${proto}" in
		(gre*|nebula|relay|vti*|vxlan|xfrm) return 0 ;;
		(none)
			uci_add network route "${iface}_rt"
			uci_set network "${iface}_rt" interface "${iface}"
			uci_set network "${iface}_rt" target '0.0.0.0/0'
			uci_add route6 network "${iface}_rt6"
			uci_set network "${iface}_rt6" interface "${iface}"
			uci_set network "${iface}_rt6" target '::/0'
		;;
	esac
	echo -en "Setting up ${packageName} routing tables for ${iface}... "
	uci_set 'network' "${iface}" 'ip4table' "${packageName}_${iface%6}"
	uci_set 'network' "${iface}" 'ip6table' "${packageName}_${iface%6}"
	if ! grep -q -E -e "^[0-9]+\s+${packageName}_${iface%6}$" /etc/iproute2/rt_tables; then
		sed -i -e "\$a $(($(sort -r -n /etc/iproute2/rt_tables | grep -o -E -m 1 "^[0-9]+")+1))\t${packageName}_${iface%6}" \
			/etc/iproute2/rt_tables
	fi
	echo -e "${__OK__}"
}

config_load network
config_foreach pbr_iface_setup interface
network_flush_cache
network_find_wan iface
network_find_wan6 iface6
# shellcheck disable=SC2154
[ -n "$iface" ] && uci -q batch << EOF
set network.default='rule'
set network.default.lookup='${packageName}_${iface%6}'
set network.default.priority='80000'
EOF
[ -n "$iface6" ] && uci -q batch << EOF
set network.default6='rule6'
set network.default6.lookup='${packageName}_${iface6%6}'
set network.default6.priority='80000'
EOF
uci_commit network
echo -en "Restarting network... "
/etc/init.d/network restart
echo -e "${__OK__}"

exit 0