#!/usr/bin/env bash
set -euo pipefail

echo "StellaOps Compose Backup"
echo "This will create a tar.gz of PostgreSQL, RustFS (object-store), and Valkey data volumes."
read -rp "Proceed? [y/N] " ans
[[ ${ans:-N} =~ ^[Yy]$ ]] || { echo "Aborted."; exit 1; }

TS=$(date -u +%Y%m%dT%H%M%SZ)
OUT_DIR=${BACKUP_DIR:-backups}
mkdir -p "$OUT_DIR"

docker compose ps >/dev/null

echo "Pausing worker containers for consistency..."
docker compose pause scanner-worker scheduler-worker taskrunner-worker || true

echo "Backing up volumes..."
docker run --rm \
  -v stellaops-postgres:/data/postgres:ro \
  -v stellaops-rustfs:/data/rustfs:ro \
  -v stellaops-valkey:/data/valkey:ro \
  -v "$PWD/$OUT_DIR":/out \
  alpine sh -c "cd / && tar czf /out/stellaops-backup-$TS.tar.gz data"

docker compose unpause scanner-worker scheduler-worker taskrunner-worker || true

echo "Backup written to $OUT_DIR/stellaops-backup-$TS.tar.gz"