#!/bin/sh /etc/rc.common

START=99
USE_PROCD=1

NAME=natmap
PROG=/usr/bin/$NAME

STATUS_PATH=/var/run/natmap

load_interfaces() {
	config_get interface "$1" interface
	config_get enable "$1" enable 1

	[ "${enable}" = "1" ] && interfaces=" ${interface} ${interfaces}"
}

validate_section_natmap() {
	uci_load_validate "${NAME}" natmap "$1" "$2" \
		'enable:bool:0' \
		'family:string' \
		'udp_mode:bool:0' \
		'interface:string' \
		'interval:uinteger' \
		'stun_server:host' \
		'http_server:host' \
		'port:port' \
		'forward_target:host' \
		'forward_port:port' \
		'notify_script:file' \
		'log_stdout:bool:1' \
		'log_stderr:bool:1'
}

natmap_instance() {
	[ "$2" = 0 ] || {
		echo "validation failed"
		return 1
	}

	[ "${enable}" = 0 ] && return 1

	procd_open_instance "$1"
	procd_set_param command "$PROG" \
		${interval:+-k "$interval"} \
		${stun_server:+-s "$stun_server"} \
		${http_server:+-h "$http_server"} \
		${port:+-b "$port"} \

	[ "${family}" = ipv4 ] && procd_append_param command -4
	[ "${family}" = ipv6 ] && procd_append_param command -6
	[ "${udp_mode}" = 1 ] && procd_append_param command -u

	[ -n "${interface}" ] && {
		local ifname

		network_get_device ifname "$interface" || ifname="$interface"
		procd_append_param command -i "$ifname"
		procd_append_param netdev "$ifname"
	}

	[ -n "${forward_target}" ] && procd_append_param command -t "$forward_target" -p "$forward_port"

	[ -n "${notify_script}" ] && procd_set_param env "NOTIFY_SCRIPT=${notify_script}"
	procd_append_param command -e /usr/lib/natmap/update.sh

	procd_set_param respawn
	procd_set_param stdout "${log_stdout}"
	procd_set_param stderr "${log_stderr}"

	procd_close_instance
}

clear_status_files() {
	find "${STATUS_PATH}" -type f -print0 | xargs -0 rm -f --
}

service_triggers() {
	local interfaces

	procd_add_reload_trigger "${NAME}"

	config_load "${NAME}"
	config_foreach load_interfaces natmap

	[ -n "${interfaces}" ] && {
		for n in $interfaces ; do
			procd_add_reload_interface_trigger $n
		done
	}

	procd_add_validation validate_section_natmap
}

start_service() {
	. /lib/functions/network.sh

	mkdir -p "${STATUS_PATH}"
	clear_status_files

	config_load "${NAME}"
	config_foreach validate_section_natmap natmap natmap_instance
}

reload_service() {
	stop
	start
}

service_stopped() {
	clear_status_files
}