import logging
import sys
import time
from logging.handlers import RotatingFileHandler
from backend.config import settings

def current_time() -> str:
    """Return the current local time as a human-readable string."""
    return time.strftime("%Y-%m-%d %H:%M:%S")

logger = logging.getLogger("lenovo_tracker")
logger.setLevel(logging.INFO)

# Clear existing handlers to prevent duplicates during multiple imports/reloads
if logger.hasHandlers():
    logger.handlers.clear()

# Ensure the log directory exists
settings.LOG_FILE.parent.mkdir(parents=True, exist_ok=True)

# Rotating file handler (5MB size limit, keeping 3 backups)
file_handler = RotatingFileHandler(settings.LOG_FILE, maxBytes=5 * 1024 * 1024, backupCount=3, encoding="utf-8")
file_handler.setFormatter(logging.Formatter('[%(asctime)s] %(message)s', datefmt='%Y-%m-%d %H:%M:%S'))
logger.addHandler(file_handler)

# Stdout console handler
console_handler = logging.StreamHandler(sys.stdout)
console_handler.setFormatter(logging.Formatter('[%(asctime)s] %(message)s', datefmt='%Y-%m-%d %H:%M:%S'))
logger.addHandler(console_handler)

# Configure discord logger to route to our handlers
discord_logger = logging.getLogger("discord")
discord_logger.setLevel(logging.WARNING)
if discord_logger.hasHandlers():
    discord_logger.handlers.clear()
discord_logger.addHandler(file_handler)
discord_logger.addHandler(console_handler)

def _log(message: str) -> None:
    """Log a message to rotating file and stdout."""
    logger.info(message)