iot-device-management-service/app/utils/logger.py

import logging
import sys
from datetime import datetime
from pathlib import Path

from app.config import settings


def setup_logger():
    logger = logging.getLogger("alert_platform")
    logger.setLevel(logging.DEBUG if settings.app.debug else logging.INFO)

    handler = logging.StreamHandler(sys.stdout)
    handler.setLevel(logging.DEBUG)

    formatter = logging.Formatter(
        "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
    )
    handler.setFormatter(formatter)

    logger.addHandler(handler)

    if settings.app.debug:
        log_dir = Path("logs")
        log_dir.mkdir(exist_ok=True)
        file_handler = logging.FileHandler(
            log_dir / f"alert_platform_{datetime.now().strftime('%Y%m%d')}.log",
            encoding="utf-8",
        )
        file_handler.setLevel(logging.DEBUG)
        file_handler.setFormatter(formatter)
        logger.addHandler(file_handler)

    return logger


logger = setup_logger()