"""Allow customization of the process title."""

import os
import sys
import logging

logger = logging.getLogger("setproctitle")

__version__ = "1.3.3"

__all__ = [
    "setproctitle",
    "getproctitle",
    "setthreadtitle",
    "getthreadtitle",
]


def setproctitle(title: str) -> None:
    logger.debug("setproctitle C module not available")
    return None


def getproctitle() -> str:
    logger.debug("setproctitle C module not available")
    return " ".join(sys.argv)


def setthreadtitle(title: str) -> None:
    logger.debug("setproctitle C module not available")
    return None


def getthreadtitle() -> str:
    logger.debug("setproctitle C module not available")
    return ""


try:
    from . import _setproctitle  # type: ignore
except ImportError as e:
    # Emulate SPT_DEBUG showing process info in the C module.
    if os.environ.get("SPT_DEBUG", ""):
        logging.basicConfig()
        logger.setLevel(logging.DEBUG)
    logger.debug("failed to import setproctitle: %s", e)
else:
    setproctitle = _setproctitle.setproctitle  # noqa: F811
    getproctitle = _setproctitle.getproctitle  # noqa: F811
    setthreadtitle = _setproctitle.setthreadtitle  # noqa: F811
    getthreadtitle = _setproctitle.getthreadtitle  # noqa: F811


# Call getproctitle to initialize structures and avoid problems caused
# by fork() on macOS (see #113).
if sys.platform == "darwin":
    getproctitle()