from datetime import datetime
import logging
from pathlib import Path

from config.main import BACKEND_DIR


LOG_DIR = BACKEND_DIR / 'logs'


def configure_logging() -> None:
    LOG_DIR.mkdir(parents=True, exist_ok=True)
    log_path = LOG_DIR / f'dcalc_{datetime.now().strftime("%Y_%m_%d")}.log'

    logger = logging.getLogger('dcalc')
    logger.setLevel(logging.INFO)
    logger.propagate = True

    if any(isinstance(handler, logging.FileHandler) and Path(handler.baseFilename) == log_path for handler in logger.handlers):
        return

    handler = logging.FileHandler(log_path, encoding='utf-8')
    handler.setLevel(logging.ERROR)
    handler.setFormatter(
        logging.Formatter(
            """
[start]
%(asctime)s
<%(name)s>
%(levelname)s
%(message)s
[end]
"""
        )
    )
    logger.addHandler(handler)