# -*- coding: utf-8 -*-
"""工具函数"""

import time
from typing import Callable, Any


def retry_on_exception(max_retries: int = 3, delay: float = 5.0) -> Callable:
    """异常重试装饰器"""
    def decorator(func: Callable) -> Callable:
        def wrapper(*args, **kwargs) -> Any:
            for attempt in range(max_retries):
                try:
                    return func(*args, **kwargs)
                except Exception as e:
                    if attempt == max_retries - 1:
                        raise e
                    print(f"尝试 {attempt + 1}/{max_retries} 失败: {e}")
                    print(f"{delay}秒后重试...")
                    time.sleep(delay)
            return None
        return wrapper
    return decorator