#!/bin/sh

FILE=~/.loginmsg
STATUS=1   # Return success explicitly

case $1 in
	-a|--add)
		if [ ! -f $FILE ]; then 
			echo    "===============================" >  $FILE
			echo    "= Your Login Message Reminder =" >> $FILE
			echo -e "===============================" >> $FILE
		fi
		echo -e "$2\n" | fmt -80 >> $FILE
		echo -e "The message that will be displayed is:\n"
		cat $FILE
		STATUS=0
	;;
	-s|--show)
		if [ -f $FILE ]; then 
			xmessage -c -buttons "OK - Remove message:0,Keep message:1" \
			         -default "OK - Remove message" -file $FILE
			[ $? -ne 1 ] && rm -f $FILE
			STATUS=0
		fi
	;;
	-r|--remove)
		if [ -f $FILE ]; then
			if [ "$2" = "" -o "$2" = "0"]; then
				rm -f $FILE
			else
				# TODO: Remove the line number specified
			fi
			STATUS=0
		fi
	;;
	*)
		echo " LoginMSG v.1 - Display yourself a message" >&2
		echo   >&2
		echo " usage: loginmsg [ options ]" >&2
		echo   >&2
		echo "   -a, --add MSG     : Append MSG to the existing message" >&2
		echo "                       contents. Message contents are" >&2
		echo "                       stored in ~/.loginmsg." >&2
		echo "   -s, --show        : Display the message." >&2
		#echo "   -r, --remove NUM  : Remove the NUMth message, starting" >&2
		#echo "                       at 1. Blank or 0 will remove all" >&2
		#echo "                       messages." >&2
		echo "   -r, --remove      : Remove any existing message." >&2
		echo   >&2
		echo " You will need to manually add  \"loginmsg --show\" to" >&2
		echo " your login scripts." >&2
	;;
esac
exit $STATUS