"""Restore project files from OTA backup directory."""

from __future__ import annotations

import logging
import os
import shutil
from typing import Optional

logger = logging.getLogger(__name__)


def restore_from_backup(base_dir: str, backup_path: Optional[str]) -> bool:
    if not backup_path or not os.path.isdir(backup_path):
        logger.error("Backup path missing or not a directory: %s", backup_path)
        return False
    try:
        from update import AutoUpdater

        au = AutoUpdater.__new__(AutoUpdater)
        au.base_dir = base_dir
        au.config_file = os.path.join(base_dir, "data", "config.json")
        au.protected_files = [
            "data/recipes.db",
            "data/recipes.db-shm",
            "data/recipes.db-wal",
            "data/reports.db",
            "data/reports.db-shm",
            "data/reports.db-wal",
            "data/update_state.json",
            "data/.pending_restart.json",
            "credentials.json",
            "calibration_factor.json",
            "weight_0.json",
            "gitea_secrets.json",
        ]
        au.protected_folders = [
            "__pycache__",
            ".git",
            "backups",
            "temp_updates",
            ".secret",
        ]
        au._restore_from_backup(backup_path)
        return True
    except Exception as exc:
        logger.error("Rollback failed: %s", exc, exc_info=True)
        return False