#!/usr/bin/env bash
# Backup Lakehouse git state + critical Docker volumes to ObjectScale/local path.
set -euo pipefail

REPO="${REPO:-/root/lakehouse}"
BACKUP_ROOT="${BACKUP_ROOT:-/var/backups/atc-lakehouse}"
DATE=$(date +%Y%m%d-%H%M%S)
DEST="$BACKUP_ROOT/$DATE"
S3_ENDPOINT="${S3_ENDPOINT:-http://10.0.20.111:9020}"
S3_BUCKET="${S3_BUCKET:-backups}"

mkdir -p "$DEST"

echo "==> Git archive"
tar czf "$DEST/lakehouse-git.tgz" -C "$(dirname "$REPO")" "$(basename "$REPO")" \
  --exclude=".git/objects/pack/*.tmp"

echo "==> Docker volumes (docker01)"
for vol in forgejo_forgejo superset_superset_home lam_lam; do
  if docker volume inspect "$vol" &>/dev/null; then
    docker run --rm -v "${vol}:/data:ro" -v "$DEST:/backup" alpine \
      tar czf "/backup/${vol}.tgz" -C /data .
    echo "  backed up $vol"
  fi
done

echo "==> Config snapshot via collect"
"$REPO/scripts/collect/collect-fleet-config.sh" || true

if command -v aws &>/dev/null && [[ -n "${AWS_ACCESS_KEY_ID:-}" ]]; then
  echo "==> Upload to ObjectScale"
  aws --endpoint-url "$S3_ENDPOINT" s3 cp "$DEST" "s3://${S3_BUCKET}/lakehouse/${DATE}/" --recursive
fi

echo "Backup complete: $DEST"
ls -la "$DEST"