x10toinst

#!/bin/bash
#    x10toinst - wrapper for plmsend to bridge x10 to insteon protocols
#    Copyright (C) 2008  Matthew Randolph
#    Please see the file COPYING for license information.
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

BINDIR="/usr/bin"
CONFDIR="/etc"

hextox10() {
	local temp
	local house
	local unit
	local command
	if echo $1 | grep -qe "0252[[:xdigit:]]\{2\}[08]0"
	then
		temp=$(echo $1 | sed 's/0252\([0-9a-fA-F]\{2\}\)[08]0/\1/')
		temp=$(echo $temp | tr a-f A-F)
		house=$(echo $temp | sed 's/\(.\)./\1/' | tr 6E2A195D7F3B084C A-P)
		temp=$(echo $temp | sed 's/.\(.\)/\1/' | tr 6E2A195D7F3B084C 1-9A-G | sed 's/\([A-G]\)/1\1/' | tr A-G 0-6)
		if echo $1 | grep -qe "0252..00"
		then
			unit=$temp
			echo "$house $unit"
		else
			case "$temp" in
				1) command="All Lights Off"; ;;
				2) command="Status = Off"; ;;
				3) command="On"; ;;
				4) command="Preset Dim"; ;;
				5) command="All Lights On"; ;;
				6) command="Hail Acknowledge"; ;;
				7) command="Bright"; ;;
				8) command="Status = On"; ;;
				9) command="Extended Code"; ;;
				10) command="Status Request"; ;;
				11) command="Off"; ;;
				12) command="Preset Dim"; ;;
				13) command="All Units Off"; ;;
				14) command="Hail Request"; ;;
				15) command="Dim"; ;;
				16) command="Extended Data"; ;;
			esac
			echo "$house $command"
		fi
	fi
}

cleanup() {
	if [ "$plmcatpid" != "" ]
	then
		kill -9 ${plmcatpid} &>/dev/null
		exit 1
	else
		pids=$(ps aux | grep plmcat | grep -v grep | wc -l)
		if [ "$pids" = 1 ]
		then
			killall plmcat &>/dev/null
			exit 2
		fi
		exit 3
	fi
}

usage() {
cat << end_of_usage
USAGE: $(basename $0)

	Note: watch for orphaned plmcat processes
end_of_usage
}

if [ "$1" == "-h" -o "$1" == "--help" ]
then
	usage
	exit 0
fi

if [ ! -e "${CONFDIR}/plmtools.conf" ]
then
	DEV="/dev/ttyUSB0"
else
	DEV=$(grep "^PLMTTY\>" ${CONFDIR}/plmtools.conf | sed 's/^.*"\(.*\)"$/\1/')
fi

trap cleanup EXIT

str1=$(ps aux | grep plmcat | grep -v grep | awk '{printf $2 "\n"}')

while read line; do
	if [ "$firstrun" != "FALSE" ]
	then
		str2=$(ps aux | grep plmcat | grep -v grep | awk '{printf $2 "\n"}')
		plmcatpid=$(cat <(echo $str1) <(echo $str2) | sort | uniq -u)
		firstrun="FALSE"
	fi

	echo "$line" >&2
	if echo "$line" | grep -qe "0252[[:xdigit:]]\{2\}00 0252[[:xdigit:]]\{2\}80"
#	if echo "$line" | wc -w | grep -q "\<2\>"
	then
		x10msg1=$(hextox10 $(echo $line | cut -d\  -f 1))
		house=$(echo $x10msg1 | cut -d\  -f 1)
		unit=$(echo $x10msg1 | cut -d\  -f 2)
		x10msg2=$(hextox10 $(echo $line | cut -d\  -f 2))
		command=$(echo $x10msg2 | cut -d\  -f 2)

		if grep -q "^$house $unit\>" ${CONFDIR}/x10toinst.conf
		then
			device=$(grep "^$house $unit\>" ${CONFDIR}/x10toinst.conf | awk '{print $3}')
		else
			device=""
		fi
	elif echo "$line" | grep -qe "0252[[:xdigit:]][45]80"
	then
		x10msg2=$(hextox10 $(echo $line | cut -d\  -f 2))
		house2=$(echo $x10msg2 | cut -d\  -f 1)
		if [ "$house" == "$house2" ]
		then
			command=$(echo $x10msg2 | cut -d\  -f 2)
		fi
	fi

	if echo "$line" | grep -qe "^0252[[:xdigit:]]\{2\}[08]0\>"
	then
		if [ "$device" != "" ]
		then
			if [ "$command" != "" ]
			then
				echo "insteon $device $command"
				${BINDIR}/insteon "$device" "$command"
			else
				echo "ERROR: unknown device or command"
			fi
		fi
	fi
done < <(${BINDIR}/plmcat -d "$DEV")