#!/usr/bin/env python3
"""Создаёт и проверяет HDD-fixture команды F7 mkdir."""

from __future__ import annotations

import pathlib
import sys


def create(root: pathlib.Path) -> None:
    panel = root / "MKTEST"
    panel.mkdir(parents=True)
    (panel / "KEEP.TXT").write_bytes(b"must remain\r\n")


def verify(root: pathlib.Path) -> None:
    expected = [
        "PASS valid DOS 8.3 components accepted",
        "PASS length and dot violations rejected",
        "PASS path injection and wildcard rejected",
        "PASS validated component joins full path",
        "PASS CWD captured before mkdir",
        "PASS mkdir creates directory",
        "PASS duplicate mkdir is managed error",
        "PASS rmdir removes probe directory",
        "PASS mkdir/rmdir preserve process CWD",
        "ALL PASS",
    ]
    failures: list[str] = []
    result = root / "MKRES.TXT"
    panel = root / "MKTEST"

    if not result.is_file():
        failures.append("нет MKRES.TXT")
    else:
        text = result.read_bytes().decode("cp866", errors="replace")
        for line in expected:
            if line not in text:
                failures.append(f"нет строки результата: {line}")
    if not (panel / "NEWDIR").is_dir():
        failures.append("F7 не создал MKTEST/NEWDIR")
    elif any((panel / "NEWDIR").iterdir()):
        failures.append("NEWDIR неожиданно не пуст")
    if not (panel / "KEEP.TXT").is_file() or \
            (panel / "KEEP.TXT").read_bytes() != b"must remain\r\n":
        failures.append("KEEP.TXT изменён")
    for unwanted in ("PROBE", "TOOLONG9", "TOOLONG99"):
        if (panel / unwanted).exists():
            failures.append(f"остался лишний MKTEST/{unwanted}")
    if failures:
        for failure in failures:
            print(f"FAIL: {failure}")
        raise SystemExit(1)
    print("PASS: validator, mkdir/error/rmdir/CWD и F7 NEWDIR.")


def main() -> None:
    if len(sys.argv) != 3 or sys.argv[1] not in {"create", "verify"}:
        raise SystemExit(f"usage: {sys.argv[0]} create|verify DIR")
    root = pathlib.Path(sys.argv[2])
    if sys.argv[1] == "create":
        create(root)
    else:
        verify(root)


if __name__ == "__main__":
    main()