#!/bin/bash

# =============================================
# ERPNext Universal S3 Restore Script
# Funktioniert mit AWS S3 + Timme Hosting + Hetzner + Backblaze etc.
# =============================================
# ================== KONFIGURATION ==================
SITE="xxx"                                      # ERPNext Site eintragen
S3_ENDPOINT=" "                                 # Adresse des S3 Servers (mit https://)
S3_BUCKET="der-bucket-name"                     # Bucket-Name
S3_ACCESS_KEY=""                                # Access Key
S3_SECRET_KEY=""                                # Secret Key
S3_REGION="eu-central-1"                        # Oft "eu-central-1" oder "us-east-1" bei kompatiblen Anbietern

BACKUP_FOLDER=""                                # Leer lassen = neuesten Ordner automatisch
ENCRYPTION_KEY=""                               # Dein Backup Encryption Key
# ===================================================

if [ -z "$ENCRYPTION_KEY" ] || [ -z "$S3_ACCESS_KEY" ] || [ -z "$S3_SECRET_KEY" ]; then
    echo "Fehler: ENCRYPTION_KEY, S3_ACCESS_KEY und S3_SECRET_KEY müssen gesetzt werden!"
    exit 1
fi

echo "=== ERPNext Universal S3 Restore Start ==="
echo "Site: $SITE"
echo "Endpoint: $S3_ENDPOINT"
echo "Bucket: $S3_BUCKET"
echo "Startzeit: $(date)"
echo "=================================================="

cd ~/frappe-bench

# 1. Neueste Backup-Version herunterladen
echo "1. Lade neuestes Backup herunter..."

if [ -z "$BACKUP_FOLDER" ]; then
    echo "   → Suche neuesten Backup-Ordner..."
    LATEST=$(aws s3 ls s3://$S3_BUCKET/ --recursive --endpoint-url $S3_ENDPOINT | sort | tail -1 | awk '{print $4}' | xargs dirname)
    BACKUP_FOLDER="s3://$S3_BUCKET/$LATEST"
fi

LOCAL_BACKUP_DIR=~/backups/$(date +%Y-%m-%d)_s3_restore
mkdir -p $LOCAL_BACKUP_DIR

echo "   → Lade herunter nach: $LOCAL_BACKUP_DIR"

aws s3 cp $BACKUP_FOLDER/ $LOCAL_BACKUP_DIR/ --recursive \
    --endpoint-url $S3_ENDPOINT \
    --aws-access-key-id $S3_ACCESS_KEY \
    --aws-secret-access-key $S3_SECRET_KEY

echo "   → Download abgeschlossen."

# 2. Restore durchführen
echo "2. Restore wird durchgeführt..."
bench --site $SITE restore \
  $LOCAL_BACKUP_DIR/database.sql.gz \
  --with-public-files $LOCAL_BACKUP_DIR/files.tar \
  --with-private-files $LOCAL_BACKUP_DIR/private-files.tar \
  --encryption-key "$ENCRYPTION_KEY" \
  --force

# 3. Nacharbeiten
echo "3. Migration, Cache und Restart..."
bench --site $SITE migrate
bench --site $SITE clear-cache
bench build
bench restart

echo "=================================================="
echo "Restore erfolgreich abgeschlossen!"
echo "Endzeit: $(date)"