# Copyright 2022 (c) Anna Schumaker.
"""Special handling for temporary directories."""
import tempfile
import pathlib
from . import gsetup

TMP_DIR = pathlib.Path(tempfile.gettempdir()) / gsetup.APPLICATION_ID
TMP_DIR.mkdir(exist_ok=True)


def cover_jpg(data: bytes | None = None) -> pathlib.Path:
    """Get the path to the temporary cover.jpg file.

    If 'data' is provided, then the file will be created with the
    contents initialized to 'data'.
    """
    cover = TMP_DIR / "cover.jpg"
    if data is not None:
        with cover.open("wb") as f:
            f.write(data)
    return cover