"""统一日志格式，便于 grep / 日志平台解析。"""
from __future__ import annotations

import logging
import os


def configure_logging() -> None:
    level_name = os.getenv("LOG_LEVEL", "INFO").upper()
    level = getattr(logging, level_name, logging.INFO)

    fmt = "%(asctime)s | %(levelname)s | %(name)s | %(message)s"
    datefmt = "%Y-%m-%d %H:%M:%S"

    root = logging.getLogger()
    if not root.handlers:
        handler = logging.StreamHandler()
        handler.setFormatter(logging.Formatter(fmt=fmt, datefmt=datefmt))
        root.addHandler(handler)
    root.setLevel(level)

    # 降噪：第三方库默认 WARNING
    logging.getLogger("httpx").setLevel(logging.WARNING)
    logging.getLogger("httpcore").setLevel(logging.WARNING)
    logging.getLogger("openai").setLevel(logging.WARNING)