"""Anton Paar file reader for rheological data.

Note: This is a skeleton implementation. Full implementation requires
access to Anton Paar sample files and format specifications.
"""

from __future__ import annotations

from pathlib import Path

from rheojax.core.data import RheoData


def load_anton_paar(filepath: str | Path, **kwargs) -> RheoData:
    """Load data from Anton Paar file.

    Args:
        filepath: Path to Anton Paar file
        **kwargs: Additional options

    Returns:
        RheoData object

    Raises:
        NotImplementedError: This reader is not yet fully implemented
        FileNotFoundError: If file doesn't exist
    """
    filepath = Path(filepath)
    if not filepath.exists():
        raise FileNotFoundError(f"File not found: {filepath}")

    # TODO: Implement Anton Paar file parsing
    # This requires sample files and format specifications
    # See Task Group 7.7-7.8 in tasks.md

    raise NotImplementedError(
        "Anton Paar file reader is not yet implemented. "
        "This requires sample files and format specifications. "
        "Please use CSV or Excel reader as an alternative, or contribute "
        "sample files to help implement this reader."
    )
