#! /bin/sh

FTP_SERVER=backup.serverkompetenz.de
BAK_PATH=backup/full
BAK=$1

if [ -z ${BAK} ]; then
	echo "USAGE: `basename $0` BAK_DIR" >&2
	exit 1
fi

set -A FILES `/usr/local/bin/curl -s -n -l "ftp://${FTP_SERVER}/${BAK_PATH}/${BAK}/" \
		| grep -v '^\.' | grep -v '\.gz$' | grep -v '\-0$'`
let RESULT=$?
if [ ${RESULT} != 0 ]; then
	echo "curl returned ${RESULT}"
	exit 2
fi

let IDX=0
(
	cat <<-EOF
		open ${FTP_SERVER}
		cd "${BAK_PATH}/${BAK}/"
		prompt
	EOF

	while [ ${IDX} -lt ${#FILES[@]} ]; do
		FNAME=${FILES[IDX]}
		echo "del ${FNAME}"
		IDX=$((IDX + 1))
	done

	echo 'close'
) | ftp

let RESULT=$?
if [ ${RESULT} != 0 ]; then
	echo "ftp returned ${RESULT}"
	exit 3
fi

exit 0