#!/bin/bash
set -e

BACKUP_DIR="/home/Dejan/Docker/Netbird-compose/backup"
TIMESTAMP=$(date +"%Y-%m-%d_%H-%M-%S")
BACKUP_FILE="${BACKUP_DIR}/netbird_backup_${TIMESTAMP}.tar.gz"

echo "[*] Creating backup directory..."
mkdir -p "$BACKUP_DIR"

echo "[*] Stopping NetBird stack..."
docker compose down

echo "[*] Backing up Docker volumes..."
VOLUMES=(
  "netbird_zdb_data"
  "netbird_management"
  "netbird_zitadel_certs"
)

TEMP_DIR="/tmp/netbird_backup_${TIMESTAMP}"
mkdir -p "$TEMP_DIR"

for VOL in "${VOLUMES[@]}"; do
  echo "[*] Exporting volume: $VOL"
  docker run --rm -v ${VOL}:/volume -v $TEMP_DIR:/backup \
    alpine tar -czf /backup/${VOL}.tar.gz -C /volume .
done

echo "[*] Backing up configuration files..."
tar -czf "$BACKUP_FILE" \
  docker-compose.yml \
  *.env \
  management.json \
  turnserver.conf \
  machinekey \
  traefik-stack \
  backup-netbird.sh \
  $TEMP_DIR/*.tar.gz

echo "[*] Cleaning temporary files..."
rm -rf "$TEMP_DIR"

echo "[*] Starting NetBird stack again..."
docker compose up -d

echo "======================================================"
echo "Backup created: $BACKUP_FILE"
echo "======================================================"