from typing import Dict, List, Tuple, Any

class CatOptInterop:
    """Lightweight interoperability bridge to map MeshViz primitives to a
    canonical intermediate representation (CatOpt-like).

    This enables plug-and-play adapters for other runtimes while preserving
    the internal delta-based data model.
    """

    @staticmethod
    def delta_state_to_intermediate(
        state: Dict[str, List[Tuple[float, float, str]]]
    ) -> Dict[str, List[Dict[str, Any]]]:
        """Convert internal delta state into a serializable intermediate form.

        Example output:
        {
          "dev1": [ {"ts": 1.0, "value": 5.5, "delta_id": "<uuid>"}, ... ],
          ...
        }
        """
        result: Dict[str, List[Dict[str, Any]]] = {}
        for device, entries in state.items():
            result[device] = [
                {"ts": ts, "value": val, "delta_id": did}
                for (ts, val, did) in entries
            ]
        return result