#!/bin/bash

#IFS=$'\n'

 syntax()
 {
	printf "\n"
 	printf "    Synopsis:\n\n"
	printf "      `basename $0` FILE\n"
	printf "      `basename $0` -m FILE\n"
	printf "      `basename $0` -h\n"
	printf "\n"
	printf "    Options:\n"
	printf "      -m : Move file rather than copying it.\n"
	printf "      -h : Print this help screen.\n"
	printf "\n"
 }

ACTION=cp
TEST=0
OPTSTRING="hms:t"


while [ 1 -eq 1 ] ; do
	getopts $OPTSTRING OPT $@
	if [ $? -ne 0 ] ; then
		break
	fi
	case $OPT in
		'h')
			syntax
			exit
		;;
		'm')
			ACTION=mv
		;;
		't')
			printf "Test mode\n"
			TEST=1
		;;
		*)
		;;
	esac
	#echo OPT = \'${OPT}\', OPTIND = \'${OPTIND}\'
done

shift $(($OPTIND-1))

#
# Don't try to handle more than one argument at a time.
# If we have more than one argument, call ourself with
# just one argument.
#
# But preserve the options (and option arguments
# if we even have any)!
#
if [[ $# -gt 1 ]] ; then
	for FILE in $@; do
		CMD=""
		if [[ $TEST -eq 1 ]] ; then
			CMD="$CMD -t"
		fi
		if [[ $ACTION == "mv" ]] ; then
			CMD="$CMD -m"
		fi
		CMD="$CMD ${FILE}"
		$0 $CMD
	done
	exit
fi

ARG=$1

if [[ "_$ARG" = "_" ]]; then
	syntax
	exit
fi

case "_$ARG" in
	_|_-*)
		syntax
		exit
	;;

	*)
	;;
esac

if [[ ! -e $ARG ]]; then
	printf "No such file: \'$ARG\'\n"
	exit 1
fi

if [ -f $ARG ] ; then
	TYPE=f
elif [ -d $ARG ] ; then
	TYPE=d
else
	printf "Wrong file type for archive: \'$ARG\'\n"
	exit 1
fi

if [ ! -d .archive ] ; then
	mkdir .archive
	if [ $? -ne 0 ] ; then
		printf "Error creating directory \'.archive\'\n"
		exit 1
	fi
fi

DATE_TIME=`date +%y%m%d%H%M%S`
MEAT=`echo ${ARG} | awk -F\. '{print $1}'`
MEAT=${MEAT/%\//}
MEAT_LEN=${#MEAT}
POTATOES=${ARG:${MEAT_LEN}}
POTATOES=${POTATOES/%\//}

#echo DATE_TIME = \'${DATE_TIME}\'
#echo MEAT = \'${MEAT}\'
#echo MEAT_LEN = \'${MEAT_LEN}\'
#echo POTATOES = \'${POTATOES}\'
#exit

#if [ $MEAT_LEN -lt ${#ARG} ]; then
#	echo "Have Extension"
#fi

FILENAME=${MEAT}_${DATE_TIME}${POTATOES}

#echo $FILENAME

CMD="${ACTION}"

if [[ $TYPE = d ]]; then
	if [[ $CMD == "cp" ]] ; then
		if [[ $TEST -ne 1 ]] ; then
		 	${CMD} -r "$ARG" ".archive/$FILENAME"
		fi
	elif [[ $CMD == "mv" ]] ; then
		if [[ ! -w ${ARG} ]] ; then
			printf "Error: You must have write privileges on \'$ARG\' in order to archive it.\n"
			exit 1
		fi
		if [[ $TEST -ne 1 ]] ; then
			mv "${ARG}" ".archive/"
			mv ".archive/${ARG}" ".archive/$FILENAME"
		fi
	else
		echo "Error: Unknown command: \'${ACTION}\'"
	fi
else
	if [[ $TEST -ne 1 ]] ; then
		${CMD} "${ARG}" ".archive/${FILENAME}"
	fi
fi

if [[ $? -ne 0 ]] ; then
	printf "Error archiving \'${ARG}\' to \'.archive/${FILENAME}\'\n"
	exit 1
fi

if [[ ${TYPE} == 'd' ]]; then
	MOD="555"
	CMD="chmod -R"
else
	MOD="444"
	CMD="chmod"
fi

if [[ $TEST -ne 1 ]] ; then
	${CMD} ${MOD} .archive/${FILENAME}
fi
printf "\'.archive/$FILENAME\' - OK\n"