#!/bin/sh

#
# Time adjust by ntpdate. 
# Usage : timeadjust.sh [-c] [NTPDATE PATH] [TIME SERVER]
#
export PATH=/home/QtPalmtop/bin:/root/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin
export LOGNAME=root
export QTDIR=/home/QtPalmtop
# --- Default Setting --- 
NTPDATE=/usr/bin/ntpdate
ICONPICT=/home/QtPalmtop/pics144/timeadjust.png
EXECMODE=do

# --- Check user "zaurus" existance --- 
USER=`cut -d : -f 1,3,4 /etc/passwd | grep zaurus:500:500`
if [ "$USER" = "" ]; then
	USER=root:0:0
fi
USERHOME=`cut -d : -f 1,3,4,6 /etc/passwd | grep $USER | cut -d : -f 4`
CONFFILE=${USERHOME}/Settings/timeadjust.conf
LOGFILE=${USERHOME}/Documents/TimeAdjust.txt
TMPFILE=/tmp/TimeAdjust.txt
USER=`echo $USER | cut -d : -f 1`
TIMESERVER=

# --- Process Comaand Options --- 
if [ "$1" != "" ]; then
	case "$1" in
		'-c')
			EXECMODE=clear
			;;
		*)
			if [ -x $1 ]; then
				NTPDATE=$1
				if [ "$2" != "" ]; then
					TIMESERVER=$2
				fi
			else
				TIMESERVER=$1
			fi
			;;
	esac
fi

# ---- Main Process ----
case "$EXECMODE" in
	'do')
		# --- read and rotate NTP server list ---
		if [ "$TIMESERVER" = "" ]; then
			TIMESERVER=`grep -v "#" -i $CONFFILE | head -1 | cut -f1`
			(
				grep -v "$TIMESERVER" $CONFFILE
				grep "$TIMESERVER" $CONFFILE
			) >$TMPFILE
			mv $TMPFILE $CONFFILE
			chown $USER $CONFFILE
		fi
		# --- Time Adjust --- 
		qcop QPE/TrayIconCtl "add(QString,QString)" timeadjust $ICONPICT
		qcop QPE/TrayIconCtl "removeWith(QString,int)" timeadjust $$
		(
			echo "--- TimeAdjust ---"
			echo "NTPDATE    : $NTPDATE"
			echo "USER       : $USER"
			echo "LOGFILE    : $LOGFILE"
			echo "TIMESERVER : $TIMESERVER"
			echo "START      : "`date`
		) >>$LOGFILE
		$NTPDATE $TIMESERVER >>$LOGFILE 2>&1
		echo 'W' > /var/spool/at/trigger 2>>$LOGFILE
		echo "FINISH     : "`date` >>$LOGFILE
		qcop QPE/TrayIconCtl "remove(QString)" timeadjust
		# ---- rotate log file ----
		tail -20 $LOGFILE>$TMPFILE
		mv $TMPFILE $LOGFILE
		chown $USER $LOGFILE
		;;
	'clear')
		# --- Process clear ----
		if [ "$EXECMODE" = "clear" ]; then
			killall ntpdate
			qcop QPE/TrayIconCtl "remove(QString)" timeadjust	
		fi
		;;
esac