"""Base class for adapters mapping local problems to canonical IR."""
from __future__ import annotations

from typing import Dict, Optional

from catopt_grid.bridge import IRObject, IRMorphism, PlanDelta
# Adapter versioning helper (fallback to a static value to avoid circular imports).
try:
    # Optional: some environments may expose a version via the adapters package.
    from catopt_grid.adapters import __version__ as _ADAPTER_VERSION  # type: ignore
except Exception:
    _ADAPTER_VERSION = "0.0.0"


class AdapterBase:
    """Minimal adapter base class.

    Subclasses should implement to_ir_object and to_morphism mappings.
    """

    name: str
    version: str = "0.0.1"

    def __init__(self, name: str) -> None:
        self.name = name

    def to_ir_object(self, local_problem) -> Optional[IRObject]:  # pragma: no cover
        """Convert a local problem to canonical IRObject. Override in subclasses."""
        return None

    def to_morphism(self, data) -> Optional[IRMorphism]:  # pragma: no cover
        """Convert data to a canonical IRMorphism. Override in subclasses."""
        return None


__all__ = ["AdapterBase"]