Implement "is_open"

from dataclasses import dataclass

from pathlib import Path

from subprocess import run

from subprocess import CalledProcessError, run

from uuid import uuid4

    def _umount(self) -> None:

        run(["sudo", "umount", f"{self.mountpoint.resolve()}"], check=True)

    @property

    def _is_mounted(self) -> bool:

        try:

            run(

                [

                    "findmnt",

                    "--source",

                    f"{self._mapper}",

                    "--mountpoint",

                    f"{self.mountpoint}",

                ],

                check=True,

            )

            return True

        except CalledProcessError:

            return False

    def open(self, password: str) -> None:

        self._cryptsetup_open(password)

        self._mount()

    @property

    def is_open(self) -> bool:

        # TODO Parse the output of "mount" to see if our mapper is mounted at our mountpoint

        raise NotImplementedError()

        return self._is_mounted