115 lines
4.1 KiB
Python
115 lines
4.1 KiB
Python
"""Minimal CatOpt bridge scaffolding for NovaPlan.
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This module provides a tiny, domain-agnostic scaffold to map NovaPlan MVP
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primitives to a CatOpt-like representation. It is intentionally lightweight and
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intended for experimentation and integration in MVP milestones.
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- Object: canonical local problem representation (LocalProblem).
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- Morphism: exchange vectors such as SharedVariables and PlanDelta with versioning.
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- Functor: adapters that translate device-specific planning representations into the
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canonical NovaPlan form.
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Note: This is a stubbed scaffold and not a full implementation. Real adapters
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and a transport layer would be built on top of this in Phase 0/1 milestones.
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"""
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from __future__ import annotations
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from typing import Dict, Any
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from nova_plan.planner import LocalProblem
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from nova_plan.contracts import PlanDelta
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class Object:
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"""A canonical representation of a local problem object in CatOpt terms."""
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def __init__(self, problem: LocalProblem):
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self.problem = problem
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def to_dict(self) -> Dict[str, Any]:
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return {
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"agent_id": self.problem.id,
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"variables": self.problem.variables,
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"constraints": self.problem.constraints,
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}
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class Morphism:
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"""Represents an exchange signal between agents (e.g., shared variable delta)."""
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def __init__(self, delta: Dict[str, float], source: str, target: str, version: int = 1):
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self.delta = delta
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self.source = source
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self.target = target
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self.version = version
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def to_json(self) -> str:
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import json
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return json.dumps({
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"delta": self.delta,
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"source": self.source,
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"target": self.target,
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"version": self.version,
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})
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class Functor:
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"""Adapter/translator between device-specific planning representations and NovaPlan."""
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def __init__(self, name: str):
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self.name = name
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def adapt(self, device_representation: Any) -> LocalProblem:
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"""Translate a device-specific representation into a LocalProblem.
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This is a no-op placeholder in this MVP scaffold. Implementations would
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depend on the device vocabularies and the canonical NovaPlan schema.
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"""
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raise NotImplementedError("Adapter not implemented yet in MVP scaffold")
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def protocol_example(local: LocalProblem) -> str:
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"""Return a small, human-readable protocol example for debugging."""
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obj = Object(local)
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return f"CatOpt Protocol Example: agent={obj.to_dict().get('agent_id')}"
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__all__ = ["Object", "Morphism", "Functor", "protocol_example", "validate_contracts"]
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def validate_contracts(obj: Object, morphism: Morphism) -> bool:
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"""Validate basic contract compatibility between Object and Morphism.
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Ensures that the delta keys carried by the Morphism are a subset of the
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Object's local variables. This is a lightweight guard to catch obvious
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contract mismatches early in the MVP bridge.
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"""
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obj_vars = set(obj.to_dict().get("variables", {}).keys())
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delta_keys = set(morphism.delta.keys())
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return delta_keys.issubset(obj_vars)
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def to_object(local: LocalProblem) -> Object:
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"""Convenience helper: convert a LocalProblem into its canonical Object form."""
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return Object(local)
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def to_morphism(delta: Dict[str, float], source: str, target: str, version: int = 1) -> Morphism:
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"""Convenience helper: produce a Morphism carrying an optimization delta."""
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return Morphism(delta=delta, source=source, target=target, version=version)
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def bridge_example(local: LocalProblem, source: str = "rover", target: str = "habitat") -> Dict[str, Any]:
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"""Create a tiny bridge example: Object + Morphism for a given delta.
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Returns a simple dictionary combining both representations for easy testing
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and experimentation in MVP pilots.
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"""
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obj = Object(local)
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# small, illustrative delta: take current local variables as delta snapshot
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delta = {k: v for k, v in local.variables.items()}
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morph = Morphism(delta=delta, source=source, target=target, version=1)
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return {
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"object": obj.to_dict(),
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"morphism": morph.to_json(),
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}
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