#!/bin/bash
set -euo pipefail

# ===== Konfiguration =====
SOURCE="/root/docker/dokuwiki"
BACKUPDIR="/root/dokuwiki_backup"
REMOTE_USER="backupuser"
REMOTE_HOST="backupserver"
REMOTE_PATH="/remote/backup/path"
RETENTION_DAYS=14

DATE=$(date +%F)
ARCHIVE="dokuwiki-$DATE.tar.gz"
HASHFILE="$ARCHIVE.sha256"

# ===== Vorbereitung =====
mkdir -p "$BACKUPDIR"

# ===== Archiv erstellen =====
tar -czf "$BACKUPDIR/$ARCHIVE" \
    -C "$SOURCE" data 

# ===== Hash erzeugen =====
cd "$BACKUPDIR"
sha256sum "$ARCHIVE" > "$HASHFILE"

# ===== Upload =====
# rsync -avz "$ARCHIVE" "$HASHFILE" \
#    "${REMOTE_USER}@${REMOTE_HOST}:${REMOTE_PATH}/"

# ===== Alte Backups lokal löschen =====
find "$BACKUPDIR" -type f -mtime +"$RETENTION_DAYS" -name "dokuwiki-*.tar.gz" -delete
find "$BACKUPDIR" -type f -mtime +"$RETENTION_DAYS" -name "dokuwiki-*.sha256" -delete