"""日志配置：控制台 + 文件 + 单 run StringIO Tee。"""
import logging
import os
import sys
from datetime import datetime
from logging.handlers import RotatingFileHandler
from pathlib import Path

from app.config import get_settings

_settings = get_settings()

_LOG_DIR = Path("logs")
_LOG_DIR.mkdir(parents=True, exist_ok=True)


def setup_logging() -> None:
    """应用启动时调用一次。"""
    root = logging.getLogger()
    root.setLevel(_settings.LOG_LEVEL.upper())

    # 避免重复添加 handler（uvicorn 重载时）
    if root.handlers:
        return

    fmt = logging.Formatter(
        "%(asctime)s | %(levelname)-7s | %(name)s | %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
    )

    # 控制台
    console = logging.StreamHandler(sys.stdout)
    console.setFormatter(fmt)
    root.addHandler(console)

    # 文件
    log_file = _LOG_DIR / f"app-{datetime.now():%Y-%m-%d}.log"
    file_handler = RotatingFileHandler(
        log_file, maxBytes=20 * 1024 * 1024, backupCount=10, encoding="utf-8"
    )
    file_handler.setFormatter(fmt)
    root.addHandler(file_handler)

    # 调整 uvicorn 噪音
    logging.getLogger("uvicorn.access").setLevel(logging.WARNING)
    logging.getLogger("apscheduler.scheduler").setLevel(logging.INFO)


def get_logger(name: str) -> logging.Logger:
    return logging.getLogger(name)