import logging
from pathlib import Path
from datetime import datetime
from config import LOG_FOLDER


def setup_logging():
    logs_dir = Path(LOG_FOLDER)
    logs_dir.mkdir(exist_ok=True)

    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S_%f")[:-3]
    log_filename = logs_dir / f"polymarket_hft_{timestamp}.log"

    log_format = "%(asctime)s.%(msecs)03d - %(name)s - %(levelname)s - %(message)s"
    date_format = "%Y-%m-%d %H:%M:%S"

    logging.basicConfig(
        level=logging.INFO,
        format=log_format,
        datefmt=date_format,
        handlers=[
            logging.FileHandler(log_filename, encoding="utf-8"),
            logging.StreamHandler(),
        ],
    )

    return logging.getLogger(__name__)