#!/bin/bash

source /etc/conf.d/usbipdevd
source /usr/lib/alxconfig-ng/functions/mysqlfunctions

CLIENTIP=$(/sbin/ifconfig eth0 | sed -n '/addr:/s/ [^r]*..//gp')

# create a new ip entry if none exist
if [[ -z $(mysqldo "select ip from clients where ip='${CLIENTIP}'") ]]
then
	mysqldo "insert into clients (ip,connected) values('${CLIENTIP}','0')"
fi

while true
do
	BUSID=$(bind_driver --list | grep -i ${USBIP_DEVICE_ID} | cut -d ' ' -f4)

	if [[ -n ${BUSID} ]]
	then
		echo "BUSID: ${BUSID}"

		# abort if nothing has changed
		if [[ $(mysqldo "select connected from clients where ip='${CLIENTIP}'") = 1 ]] &&
			[[ $(mysqldo "select busid from clients where ip='${CLIENTIP}'") = ${BUSID} ]]
		then
			echo "USBID is the same; nothing changed"
		else
			echo "exporting Logitech Pen with ID ${BUSID}"
			bind_driver --usbip ${BUSID}
			mysqldo "update clients set connected='1', busid='${BUSID}' where ip='${CLIENTIP}'"
		fi
	else
		echo "No Logitech Pen (${USBIP_DEVICE_ID}) found ..."
		mysqldo "update clients set connected='0', busid='${BUSID}' where ip='${CLIENTIP}'"
	fi

	sleep ${USBIP_WAIT_TIMEOUT}
done