import ctypes
import ctypes.util
import os
from pathlib import Path


libc = ctypes.CDLL(ctypes.util.find_library('c'), use_errno=True)
libc.mount.argtypes = (ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_ulong, ctypes.c_char_p)
libc.umount2.argtypes = (ctypes.c_char_p, ctypes.c_ulong)


def mount(source: Path | str, target: Path | str, format_: str, flags: int = 0, data: str = ""):
    result = libc.mount(
        ctypes.c_char_p(str(source).encode('utf-8')),
        ctypes.c_char_p(str(target).encode('utf-8')),
        ctypes.c_char_p(str(format_).encode('utf-8')),
        flags,
        ctypes.c_char_p(data.encode('utf-8')) if data is not None else None
    )
    if result != 0:
        raise OSError(f"Could not perform mount: {os.strerror(ctypes.get_errno())}")


def unmount(target: Path | str, flags: int = 0):
    return libc.umount2(
        ctypes.c_char_p(str(target).encode('utf-8')),
        flags
    )