"""
Configuración de logging para AR-ShipDesign.

Logs rotativos en %APPDATA%/ARShipDesign/logs/
"""

import logging
import os
from logging.handlers import RotatingFileHandler
from pathlib import Path


def get_log_dir() -> Path:
    """Retorna el directorio de logs en %APPDATA%."""
    appdata = os.environ.get("APPDATA", Path.home() / "AppData" / "Roaming")
    log_dir = Path(appdata) / "ARShipDesign" / "logs"
    log_dir.mkdir(parents=True, exist_ok=True)
    return log_dir


def setup_logging(level: str = "INFO") -> logging.Logger:
    """
    Configura el sistema de logging de la aplicación.

    Parameters
    ----------
    level : str
        Nivel de logging: DEBUG, INFO, WARNING, ERROR

    Returns
    -------
    logging.Logger
        Logger raíz de la aplicación.
    """
    numeric_level = getattr(logging, level.upper(), logging.INFO)

    log_file = get_log_dir() / "arshipdesign.log"

    formatter = logging.Formatter(
        fmt="%(asctime)s [%(levelname)-8s] %(name)s: %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
    )

    # Handler de archivo rotativo (5 MB × 3 archivos)
    file_handler = RotatingFileHandler(
        log_file, maxBytes=5 * 1024 * 1024, backupCount=3, encoding="utf-8"
    )
    file_handler.setFormatter(formatter)
    file_handler.setLevel(numeric_level)

    # Handler de consola
    console_handler = logging.StreamHandler()
    console_handler.setFormatter(formatter)
    console_handler.setLevel(numeric_level)

    root_logger = logging.getLogger("arshipdesign")
    root_logger.setLevel(numeric_level)
    root_logger.addHandler(file_handler)
    root_logger.addHandler(console_handler)

    root_logger.info("AR-ShipDesign logging iniciado — nivel: %s", level)
    return root_logger


def get_logger(name: str) -> logging.Logger:
    """Retorna un logger hijo del logger raíz de la app."""
    return logging.getLogger(f"arshipdesign.{name}")