from __future__ import annotations

from pathlib import Path

__all__ = ["get_project_root", "get_data_dir", "data_file"]


def get_project_root() -> Path:
    """Return the absolute path to the repository root (directory containing this file)."""
    return Path(__file__).resolve().parent


def get_data_dir() -> Path:
    """Return the absolute path to the data directory under the repository root."""
    return get_project_root() / "data"


def data_file(name: str) -> Path:
    """Return the absolute path to a file inside the data directory."""
    return get_data_dir() / name