"""
Compatibility shim for the historical ``openenv_core`` package.

The core runtime now lives under ``openenv.core``. Importing from the old
package path will continue to work but emits a ``DeprecationWarning`` so
downstream users can migrate at their own pace.
"""

from __future__ import annotations

import importlib
import sys
import warnings
from types import ModuleType
from typing import Dict

_TARGET_PREFIX = "openenv.core"
_TARGET_MODULE = importlib.import_module(_TARGET_PREFIX)

warnings.warn(
    "openenv_core is deprecated; import from openenv.core instead.",
    DeprecationWarning,
    stacklevel=2,
)

__all__ = getattr(_TARGET_MODULE, "__all__", [])


def __getattr__(name: str):
    return getattr(_TARGET_MODULE, name)


def __dir__():
    return sorted(set(dir(_TARGET_MODULE)))


def _alias(name: str) -> None:
    target = f"{_TARGET_PREFIX}.{name}"
    sys.modules[f"{__name__}.{name}"] = importlib.import_module(target)


for _child in ("client_types", "containers", "env_server", "env_client", "tools"):
    try:
        _alias(_child)
    except ModuleNotFoundError:  # pragma: no cover - defensive
        continue