#!/bin/bash

# Backup-Ordner
BACKUP_DIR="/mnt"

# ccollect_logwrapper-Skript
CCOLLECT_LOGWRAPPER="./ccollect_logwrapper.sh"

# letzte Sicherung für Gruppe daily, weekly und monthly in Backup-Ordner ermitteln
DATE_DAILY=`  ls $BACKUP_DIR | grep daily   | sort -r | sed -e'2,$d' | cut -f 2 -d.`
DATE_WEEKLY=` ls $BACKUP_DIR | grep weekly  | sort -r | sed -e'2,$d' | cut -f 2 -d.`
DATE_MONTHLY=`ls $BACKUP_DIR | grep monthly | sort -r | sed -e'2,$d' | cut -f 2 -d.`
DATE_YEARLY=` ls $BACKUP_DIR | grep yearly  | sort -r | sed -e'2,$d' | cut -f 2 -d.`

# Falls Leerstring diesen mit "altem Datum" füllen
if [ -z "$DATE_DAILY"   ] ; then  DATE_DAILY="20000101-0101"   ; fi
if [ -z "$DATE_WEEKLY"  ] ; then  DATE_WEEKLY="20000101-0101"  ; fi
if [ -z "$DATE_MONTHLY" ] ; then  DATE_MONTHLY="20000101-0101" ; fi
if [ -z "$DATE_YEARLY"  ] ; then  DATE_YEARLY="20000101-0101"  ; fi

echo current:  $DATE_CUR
echo last daily: $DATE_DAILY
echo last weekly: $DATE_WEEKLY
echo last monthly: $DATE_MONTHLY
echo last yearly: $DATE_YEARLY

# Datum date-konform wandeln
# Achtung: mit bash - nicht mit sh möglich!
# Alternativ mit expr... konvertieren

DATE_DAILY=${DATE_DAILY:0:4}-${DATE_DAILY:4:2}-${DATE_DAILY:6:2}" "${DATE_DAILY:9:2}:${DATE_DAILY:11:2}:00
DATE_WEEKLY=${DATE_WEEKLY:0:4}-${DATE_WEEKLY:4:2}-${DATE_WEEKLY:6:2}" "${DATE_WEEKLY:9:2}:${DATE_WEEKLY:11:2}:00
DATE_MONTHLY=${DATE_MONTHLY:0:4}-${DATE_MONTHLY:4:2}-${DATE_MONTHLY:6:2}" "${DATE_MONTHLY:9:2}:${DATE_MONTHLY:11:2}:00
DATE_YEARLY=${DATE_YEARLY:0:4}-${DATE_YEARLY:4:2}-${DATE_YEARLY:6:2}" "${DATE_YEARLY:9:2}:${DATE_YEARLY:11:2}:00
DATE_CUR=`date "+%Y-%m-%d %T"`

# Bei Bedarf Backups durchführen

if [ `date --date "$DATE_YEARLY" +%Y` -ne `date --date "$DATE_CUR" +%Y` ]
then

  # Jahresbackup erzeugen
  echo monthly backup started
  source $CCOLLECT_LOGWRAPPER -a yearly

elif [ `date --date "$DATE_MONTHLY" +%Y%m` -ne `date --date "$DATE_CUR" +%Y%m` ]
then

  # Monatsbackup erzeugen
  echo monthly backup started
  source $CCOLLECT_LOGWRAPPER -a monthly

elif [ `date --date "$DATE_WEEKLY" +%Y%W` -ne `date --date "$DATE_CUR" +%Y%W` ]
then

  # Wochenbackup erzeugen
  echo weekly backup started
  source $CCOLLECT_LOGWRAPPER -a weekly

elif [ `date --date "$DATE_DAILY" +%Y%j` -ne `date --date "$DATE_CUR" +%Y%j` ]
then

  # Tagesbackup erzeugen
  echo daily backup started
  source $CCOLLECT_LOGWRAPPER -a daily

else

  # nichts zu tun
  echo nothing to do

fi