#!/usr/bin/env python3
"""Создаёт UI-каталог выбора и проверяет SELRES.TXT target-пробы."""

from __future__ import annotations

import pathlib
import sys


def create(root: pathlib.Path) -> None:
    panel = root / "SELECT"
    panel.mkdir(parents=True)
    (panel / "ADIR").mkdir()
    (panel / "ZDIR").mkdir()
    for name, size in (("A.BIN", 10), ("B.BIN", 20), ("C.BIN", 30)):
        (panel / name).write_bytes(bytes((index * 19 + size) & 0xFF
                                        for index in range(size)))


def verify(root: pathlib.Path) -> None:
    result = root / "SELRES.TXT"
    expected = [
        "PASS parent cannot be selected",
        "PASS Insert selects file and advances",
        "PASS second Insert accumulates size",
        "PASS DSS marker cannot be selected",
        "PASS invert changes files only",
        "PASS second invert restores file selection",
        "PASS individual Insert may select directory",
        "PASS clear group ignores selected directory",
        "PASS mask is ASCII case insensitive",
        "PASS question wildcard clears matching files",
        "PASS DOS star-dot-star selects all files only",
        "PASS group mask never changes directory flag",
        "PASS refresh clear resets selection totals",
        "PASS EMM restored",
        "ALL PASS",
    ]
    failures: list[str] = []
    if not result.is_file():
        failures.append("нет SELRES.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 failures:
        for failure in failures:
            print(f"FAIL: {failure}")
        raise SystemExit(1)
    print("PASS: Insert/invert/masks, virtual guards, totals, refresh и EMM.")


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()