"""Shared helpers exposed through lazy imports."""

from importlib import import_module


_EXPORTS = {
    "tensor_to_pil": ("image_utils", "tensor_to_pil"),
    "pil_to_tensor": ("image_utils", "pil_to_tensor"),
    "encode_image_to_base64": ("image_utils", "encode_image_to_base64"),
    "decode_base64_to_pil": ("image_utils", "decode_base64_to_pil"),
    "load_config": ("config", "load_config"),
    "get_api_key": ("config", "get_api_key"),
    "ImageInfo": ("file_utils", "ImageInfo"),
    "load_images_from_folder": ("file_utils", "load_images_from_folder"),
    "pair_images_indexed": ("file_utils", "pair_images_indexed"),
    "pair_images_cartesian": ("file_utils", "pair_images_cartesian"),
    "generate_timestamp_filename": ("file_utils", "generate_timestamp_filename"),
    "save_image": ("file_utils", "save_image"),
    "get_folder_image_count": ("file_utils", "get_folder_image_count"),
}

__all__ = list(_EXPORTS)


def __getattr__(name):
    try:
        module_name, attribute_name = _EXPORTS[name]
    except KeyError as exc:
        raise AttributeError(f"module {__name__!r} has no attribute {name!r}") from exc

    value = getattr(import_module(f".{module_name}", __name__), attribute_name)
    globals()[name] = value
    return value