app/core/logging.py

from __future__ import annotations

import logging
import logging.config

from app.core.config import get_settings

_LOG_FORMAT = "%(asctime)s %(levelname)-8s %(name)s :: %(message)s"
_DATE_FORMAT = "%Y-%m-%d %H:%M:%S"


def setup_logging() -> None:
    """Configure root logger with a single stdout handler. Idempotent."""
    settings = get_settings()
    logging.config.dictConfig(
        {
            "version": 1,
            "disable_existing_loggers": False,
            "formatters": {
                "default": {
                    "format": _LOG_FORMAT,
                    "datefmt": _DATE_FORMAT,
                },
            },
            "handlers": {
                "console": {
                    "class": "logging.StreamHandler",
                    "stream": "ext://sys.stdout",
                    "formatter": "default",
                    "level": settings.log_level,
                },
            },
            "loggers": {
                "uvicorn.access": {"level": "WARNING", "propagate": True},
                "aiogram.event": {"level": "INFO", "propagate": True},
                "sqlalchemy.engine": {"level": "WARNING", "propagate": True},
            },
            "root": {
                "handlers": ["console"],
                "level": settings.log_level,
            },
        }
    )