import logging
import os
from logging.handlers import RotatingFileHandler
from typing import Optional


def configure_logging(log_level: Optional[str], log_file: Optional[str]) -> None:
    level_name = (log_level or "INFO").upper()
    level = getattr(logging, level_name, logging.INFO)

    handlers: list[logging.Handler] = []
    stream_handler = logging.StreamHandler()
    handlers.append(stream_handler)

    if log_file:
        log_path = log_file
        if not os.path.isabs(log_path):
            log_path = os.path.join(os.getcwd(), log_path)
        os.makedirs(os.path.dirname(log_path), exist_ok=True)
        file_handler = RotatingFileHandler(
            log_path, maxBytes=2_000_000, backupCount=3, encoding="utf-8"
        )
        handlers.append(file_handler)

    formatter = logging.Formatter(
        fmt="%(asctime)s | %(levelname)s | %(name)s | %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
    )
    for handler in handlers:
        handler.setFormatter(formatter)

    root = logging.getLogger()
    for handler in list(root.handlers):
        root.removeHandler(handler)
    for handler in handlers:
        root.addHandler(handler)
    root.setLevel(level)

    logging.getLogger("uvicorn").setLevel(level)
    logging.getLogger("uvicorn.error").setLevel(level)
    logging.getLogger("uvicorn.access").setLevel(level)