logger.py

"""Logging setup for GEM BidPlus. When GEM_DEBUG=1 writes to file and console with verbose level."""

import logging
import os
import sys

from utils import config


def setup_logger(name: str = "gem_automation") -> logging.Logger:
    """Configure and return the logger."""
    log = logging.getLogger(name)
    if log.handlers:
        return log

    log.setLevel(logging.DEBUG if config.DEBUG else logging.INFO)

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

    handler = logging.StreamHandler(sys.stdout)
    handler.setFormatter(fmt)
    log.addHandler(handler)

    if config.DEBUG:
        config._ensure_debug_dirs()
        file_handler = logging.FileHandler(
            os.path.join(config.LOG_DIR, "gem_automation.log"),
            encoding="utf-8",
        )
        file_handler.setFormatter(fmt)
        file_handler.setLevel(logging.DEBUG)
        log.addHandler(file_handler)

    return log


logger = setup_logger()