#!/bin/sh

function get_system_ntp_option()
{
	local val

	val="$(uci -q get system.ntp.${1})"
	echo "${val}"
}

# migrate system ntp servers to time
if uci -q get system.ntp >/dev/null 2>&1; then
	if [ ! -f "/etc/config/time" ]; then
		touch /etc/config/time

		uci -q set time.global="global"
		uci -q set time.global.enable="1"

		uci -q set time.client="client"

		enabled="$(get_system_ntp_option enabled)"
		if [ -z "${enabled}" ]; then
			enabled="1"
		fi

		uci -q set time.client.enable="$enabled"
		uci -q set time.client.iburst="1"
		uci -q set time.client.version="4"
		uci -q set time.client.peer="0"
		uci -q set time.client.minpoll="6"
		uci -q set time.client.maxpoll="10"
		uci -q set time.client.mode="Unicast"
		uci -q set time.client.interface="wan"

		servers="$(get_system_ntp_option server)"
		if [ -z "${servers}" ]; then
			servers="ntp1.sth.netnod.se ntp1.gbg.netnod.se"
		fi

		for server in $servers; do
			uci -q add_list time.client.server="${server}"
		done

		# DHCP client instance
		uci -q set time.dhcp_driven="client"
		uci -q set time.dhcp_driven.enable="0"

		interface="$(get_system_ntp_option interface)"
		if [ -n "${interface}" ]; then
			uci -q set time.dhcp_driven.interface="${interface}"
		else
			uci -q set time.dhcp_driven.interface="wan"
		fi

		uci -q set time.dhcp_driven.iburst="1"
		uci -q set time.dhcp_driven.version="4"
		uci -q set time.dhcp_driven.peer="0"
		uci -q set time.dhcp_driven.minpoll="6"
		uci -q set time.dhcp_driven.maxpoll="10"
		uci -q set time.dhcp_driven.mode="Unicast"

		# Add timeserver
		uci -q set time.server="server"
		uci -q set time.server.enable="$(get_system_ntp_option enable_server)"
		uci -q set time.server.mode="Unicast"
		uci -q set time.server.ttl="255"
		uci -q commit time
	fi

	uci -q delete system.ntp
	uci -q commit system
fi