#!/bin/sh

diff=0
wan=$(uci -q get ports.WAN.ifname)

[ "$wan" == "" ] && exit 1 # no configuration
[ "$PORT" != "$wan" ] && exit 0

get_bridge() {
	local id
	local ifname="$1"
	local bridge=""
	id=$(cat /sys/class/net/${ifname}/brport/bridge/bridge/bridge_id)

	#echo "bridge id = $id" > /dev/console

	[ "$id" = "" ] && return

	bridge=$(brctl show | grep $id | cut -f1)

	case "$bridge" in
		br-*)
			bridge=$(echo $bridge | cut -c4-)
		;;
	esac

	echo $bridge
}

disable_bstas() {
	section="$1"

	config_get mode "$section" mode "ap"
	config_get ifname "$section" ifname
	config_get device "$section" device
	#echo mode=$mode ifname=$ifname > /dev/console

	[ "$mode" == "sta" ] || return

	uci set wireless.$section.disabled=1
	bridge=$(get_bridge $ifname)
	if [ "$bridge" != "" ]; then
		#echo got bridge = $bridge > /dev/console
		ubus call network.interface.$bridge remove_device '{"name":"$ifname"}'
	fi
	ifconfig "$ifname" down

	diff=1
	#echo disabled $ifname > /dev/console
}

enable_bstas() {
	section="$1"
	config_load "wireless"

	config_get mode "$section" mode "ap"
	config_get ifname "$section" ifname
	config_get device "$section" device
	#echo mode=$mode ifname=$ifname > /dev/console

	[ "$mode" == "sta" ] || return

	uci set wireless.$section.disabled=0
	ifconfig "$ifname" up

	diff=1
	#echo enabled $ifname > /dev/console
}

config_load "wireless"

if [ "$LINK" == "up" ]; then
	config_foreach disable_bstas wifi-iface
else
	config_foreach enable_bstas wifi-iface
fi

#echo diff = $diff > /dev/console

uci -q commit wireless
[ "$diff" == "1" ] && {
	#echo reloading via uci > /dev/console
	ubus call uci commit '{"config":"wireless"}'
}