#!/bin/bash

# Docker backup script for NewsArchiver
# This script backs up archived data from the Docker volume to a local or NAS location

set -e

BACKUP_DIR="${BACKUP_DIR:-./backups}"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
BACKUP_NAME="newsarchiver_backup_${TIMESTAMP}.tar.gz"

echo "Starting backup..."
echo "Backup location: ${BACKUP_DIR}/${BACKUP_NAME}"

# Create backup directory
mkdir -p "$BACKUP_DIR"

# Create backup from the Docker volume
docker run --rm \
  -v newsarchiver_data:/data:ro \
  -v "${BACKUP_DIR}:/backup" \
  alpine tar -czf "/backup/${BACKUP_NAME}" -C /data .

echo "Backup complete: ${BACKUP_DIR}/${BACKUP_NAME}"
echo ""
echo "To restore from backup:"
echo "  1. Stop the container: docker-compose down"
echo "  2. Remove the volume: docker volume rm newsarchiver_data"
echo "  3. Create a new volume: docker volume create newsarchiver_data"
echo "  4. Restore: docker run --rm -v newsarchiver_data:/data -v \${BACKUP_DIR}:/backup alpine tar -xzf /backup/${BACKUP_NAME} -C /data"
echo "  5. Start: docker-compose up -d"