from dataclasses import dataclass
from collections.abc import Iterator


@dataclass(init=False)
class MirrorField:
    _data: list[str]

    def __getitem__(self, key: int) -> str:
        return self._data[key]

    def __len__(self) -> int:
        return len(self._data)

    def __iter__(self) -> Iterator[str]:
        return iter(self._data)

    def iter_horizontal(self) -> Iterator[str]:
        return iter(self)

    def iter_vertical(self) -> Iterator[str]:
        x = 0
        while x < len(self._data[0]):
            the_str = ""
            for line in self._data:
                the_str += line[x]
            yield the_str
            x += 1

    def find_symetry(self) -> tuple[str, int] | None:
        """Return a tuple indicating a symetry horizontal (h) or vertical (v) and the first row or column index"""


def parse(input_file: str) -> MirrorField:
    return MirrorField()