"""
Utilities for determining application-specific dirs. See <https://github.com/platformdirs/platformdirs> for details and
usage.
"""
from __future__ import annotations

import importlib
import os
import sys
from pathlib import Path
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from pip._vendor.typing_extensions import Literal  # pragma: no cover

from .api import PlatformDirsABC
from .version import __version__, __version_info__


def _set_platform_dir_class() -> type[PlatformDirsABC]:
    if os.getenv("ANDROID_DATA") == "/data" and os.getenv("ANDROID_ROOT") == "/system":
        module, name = "pip._vendor.platformdirs.android", "Android"
    elif sys.platform == "win32":
        module, name = "pip._vendor.platformdirs.windows", "Windows"
    elif sys.platform == "darwin":
        module, name = "pip._vendor.platformdirs.macos", "MacOS"
    else:
        module, name = "pip._vendor.platformdirs.unix", "Unix"
    result: type[PlatformDirsABC] = getattr(importlib.import_module(module), name)
    return result


PlatformDirs = _set_platform_dir_class()  #: Currently active platform
AppDirs = PlatformDirs  #: Backwards compatibility with appdirs


def user_data_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    roaming: bool = False,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param roaming: See `roaming <platformdirs.api.PlatformDirsABC.version>`.
    :returns: data directory tied to the user
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, roaming=roaming).user_data_dir


def site_data_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    multipath: bool = False,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param multipath: See `roaming <platformdirs.api.PlatformDirsABC.multipath>`.
    :returns: data directory shared by users
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, multipath=multipath).site_data_dir


def user_config_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    roaming: bool = False,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param roaming: See `roaming <platformdirs.api.PlatformDirsABC.version>`.
    :returns: config directory tied to the user
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, roaming=roaming).user_config_dir


def site_config_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    multipath: bool = False,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param multipath: See `roaming <platformdirs.api.PlatformDirsABC.multipath>`.
    :returns: config directory shared by the users
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, multipath=multipath).site_config_dir


def user_cache_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    opinion: bool = True,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param opinion: See `roaming <platformdirs.api.PlatformDirsABC.opinion>`.
    :returns: cache directory tied to the user
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, opinion=opinion).user_cache_dir


def user_state_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,
    version: str | None = None,
    roaming: bool = False,
) -> str:
    """
    :param appname: See `appname <platformdirs.api.PlatformDirsABC.appname>`.
    :param appauthor: See `appauthor <platformdirs.api.PlatformDirsABC.appauthor>`.
    :param version: See `version <platformdirs.api.PlatformDirsABC.version>`.
    :param roaming: See `roaming <platformdirs.api.PlatformDirsABC.version>`.
    :returns: state directory tied to the user
    """
    return PlatformDirs(appname=appname, appauthor=appauthor, version=version, roaming=roaming).user_state_dir


def user_log_dir(
    appname: str | None = None,
    appauthor: str | None | Literal[False] = None,