#!/bin/sh

if [ -f /tmp/voice-monitor.pid ]; then
	kill -9 $(cat /tmp/voice-monitor.pid) 2>/dev/null
	rm -f /tmp/voice-monitor.pid
fi

[ "$1" == "stop" ] && exit

ACCOUNTENABLED=0
for peer in $(uci show voice_client | grep sip_service_provider | awk -F[.,=] '{print$2}'); do
	[ "$(uci -q get voice_client.$peer.enabled)" == "1" ] && ACCOUNTENABLED=1
done

if [ $ACCOUNTENABLED -eq 0 ]; then
	ubus call led.voice1 set '{"state":"off"}'
	exit
fi

. /usr/share/libubox/jshn.sh

OFFHOOK=0
REGISTERED=0

asterisk -x 'sip show registry' | grep -q "Registered" && REGISTERED=1
ubus call endpt status | grep -q "OFFHOOK" && OFFHOOK=1

if [ $OFFHOOK -eq 1 ]; then
	ubus call led.voice1 set '{"state":"notice"}'
elif [ $REGISTERED -eq 1 ]; then
	ubus call led.voice1 set '{"state":"ok"}'
else
	ubus call led.voice1 set '{"state":"error"}'
fi

ubus listen asterisk.registry asterisk.endpoint | \
while read event ; do
	#echo "voice-monitor got event: $event" >/dev/console
	json_load "$event"
	if json_select asterisk.registry >/dev/null; then
		json_get_var status status
		if [ "$status" == "Registered" ]; then
			REGISTERED=1
			[ $OFFHOOK -eq 0 ] && ubus call led.voice1 set '{"state":"ok"}'
		else
			REGISTERED=0
			[ $OFFHOOK -eq 0 ] && ubus call led.voice1 set '{"state":"error"}'
		fi
	elif json_select asterisk.endpoint >/dev/null; then
		json_get_var event event

		case $event in
		    OFFHOOK)
			OFFHOOK=1
			ubus call led.voice1 set '{"state":"notice"}'
			;;
		    ONHOOK)
			OFFHOOK=0
			if [ $REGISTERED -eq 1 ]; then
				ubus call led.voice1 set '{"state":"ok"}'
			else
			        ubus call led.voice1 set '{"state":"error"}'
			fi
			;;
		    *)
			# Do nothing for other events.
			;;
		esac			    
	fi
done &

echo $(($!-1)) $! >/tmp/voice-monitor.pid