#!/usr/bin/env python3
import argparse
from pathlib import Path

from app.backup_service import restore_backup
from app.config import settings


parser = argparse.ArgumentParser(description="在停机维护窗口恢复数据库备份")
parser.add_argument("filename", help="backups 目录内的备份文件名")
parser.add_argument("--confirm", action="store_true", help="确认覆盖当前数据库")
args = parser.parse_args()
if not args.confirm:
    parser.error("恢复会覆盖当前数据库，请停机后添加 --confirm")
path = settings.backup_dir / Path(args.filename).name
if not path.exists():
    parser.error(f"备份不存在：{path}")
restore_backup(path)
print(f"restored={path}")