diff --git a/AGENTS.md b/AGENTS.md index a1ed726..b49bbd7 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -9,3 +9,9 @@ TradeCipher MVP - Agent Overview Notes: - This is a minimal interoperable skeleton designed to be extended into a full cross-venue MVP. - Additional adapters and contract registries can be added under adapters/ and contracts/ respectively. + +New architectural additions in this iteration: +- contract_registry.py: lightweight in-memory registry for versioned data contracts (LocalTrade, SharedSignals, PlanDelta, etc.). +- bridge.py: minimal EnergiBridge to translate between venue payloads and canonical TradeCipher objects. +- adapters.py: added two stub venue adapters (VenueAAdapter, VenueBAdapter) and automatic bootstrap registration for MVP wiring. +- Updated adapters module to import json and ensure safe canonical translations. diff --git a/README.md b/README.md index b825d4e..f98993f 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,12 @@ A modular, open-source platform enabling end-to-end trade lifecycle auditing acr This repository provides a minimal MVP implementation in Python to satisfy tests and demonstrate the core concepts (contracts, a tamper-evident ledger, and placeholder ZK proofs). See AGENTS.md for contribution guidance and the READY_TO_PUBLISH signal when ready to publish. +New in this iteration: +- contract_registry.py: lightweight, in-memory registry for versioned data contracts (LocalTrade, SharedSignals, PlanDelta, etc.). +- bridge.py: EnergiBridge skeleton to map between venue payloads and canonical TradeCipher objects. +- adapters.py: two stub venue adapters (VenueAAdapter, VenueBAdapter) with bootstrap wiring. +- README: updated to reflect enhanced interoperability and governance considerations. + ## How to run (local MVP) - Install Python 3.8+ - Install build tooling: "python3 -m pip install build" diff --git a/tradecipher_blockchain_backed_privacy_pr/adapters.py b/tradecipher_blockchain_backed_privacy_pr/adapters.py index 72d69cd..820437e 100644 --- a/tradecipher_blockchain_backed_privacy_pr/adapters.py +++ b/tradecipher_blockchain_backed_privacy_pr/adapters.py @@ -7,6 +7,8 @@ extended to map LocalTrade -> canonical representation and to register simple venue adapters. It demonstrates the intended extension point. """ +import json + ADAPTER_REGISTRY = {} @@ -16,3 +18,65 @@ def register_adapter(name: str, adapter: object) -> None: def get_adapter(name: str): return ADAPTER_REGISTRY.get(name) + + +# Lightweight, two-venue MVP adapters (stubbed for bootstrap). +# These adapters translate between a venue-specific message format and +# the canonical LocalTrade/SharedSignals/PlanDelta representation used +# by the TradeCipher core. The implementations here are intentionally +# minimal placeholders to unblock interoperability testing. + +class VenueAAdapter: + name = "VenueA" + + @staticmethod + def to_canonical(obj: object) -> dict: + # Placeholder translation: assume obj is already a dict-like + # representation compatible with canonical fields. + if hasattr(obj, "to_json"): + return json.loads(obj.to_json()) # type: ignore + if isinstance(obj, dict): + return obj + return {} # pragma: no cover + + @staticmethod + def from_canonical(data: dict) -> object: + # Return as-is; in a full implementation this would construct + # a venue-specific LocalTrade message. + return data + + +class VenueBAdapter: + name = "VenueB" + + @staticmethod + def to_canonical(obj: object) -> dict: + if hasattr(obj, "to_json"): + return json.loads(obj.to_json()) # type: ignore + if isinstance(obj, dict): + return obj + return {} + + @staticmethod + def from_canonical(data: dict) -> object: + return data + + +def register_default_adapters() -> None: + """Register default, stub adapters for VenueA and VenueB. + + This is a minimal bootstrap to enable end-to-end wiring in tests + and examples. Real adapters would implement complete mapping logic. + """ + register_adapter(VenueAAdapter.name, VenueAAdapter) + register_adapter(VenueBAdapter.name, VenueBAdapter) + + +# Autoload default adapters on import, so downstream code can rely on them +# being present without extra setup. This keeps the module side-effect-free +# for testing environments that import adapters without needing a runner. +try: + register_default_adapters() +except Exception: + # If anything goes wrong in bootstrap, fail softly to not break local tests + pass diff --git a/tradecipher_blockchain_backed_privacy_pr/bridge.py b/tradecipher_blockchain_backed_privacy_pr/bridge.py new file mode 100644 index 0000000..2663da4 --- /dev/null +++ b/tradecipher_blockchain_backed_privacy_pr/bridge.py @@ -0,0 +1,35 @@ +"""EnergiBridge: a minimal canonical bridge for TradeCipher interoperability. + +This is an ultra-lightweight skeleton that translates between venue-specific +messages and the canonical in-repo representation used by the core contracts. +It intentionally avoids external dependencies and focuses on wiring and +demonstrating the data flow for MVP testing. +""" + +from __future__ import annotations + +from typing import Dict, Any +from .adapters import get_adapter +from .contracts import LocalTrade, SharedSignals, PlanDelta + + +class EnergiBridge: + @staticmethod + def to_canonical(venue: str, payload: Any) -> Dict[str, Any]: + adapter = get_adapter(venue) + if adapter is None: + # Unknown venue: return a minimal placeholder + return {"venue": venue, "payload": payload} + data = adapter.to_canonical(payload) + # In a real implementation we would validate and normalize the object here + return { + "venue": venue, + "canonical": data, + } + + @staticmethod + def from_canonical(venue: str, data: Dict[str, Any]) -> Any: + adapter = get_adapter(venue) + if adapter is None: + return data + return adapter.from_canonical(data.get("canonical", data)) diff --git a/tradecipher_blockchain_backed_privacy_pr/contract_registry.py b/tradecipher_blockchain_backed_privacy_pr/contract_registry.py new file mode 100644 index 0000000..e75118c --- /dev/null +++ b/tradecipher_blockchain_backed_privacy_pr/contract_registry.py @@ -0,0 +1,50 @@ +"""Lightweight contract and schema registry for TradeCipher MVP. + +This is a minimal, in-process registry to track versioned data contracts +and their associated schemas. It is intentionally simple and intended for +bootstrapping interoperability between adapters and contracts. +""" + +from __future__ import annotations + +from typing import Dict, Tuple +import json + + +# Simple in-memory registry keeping (name -> (version, schema)) +_REGISTRY: Dict[str, Tuple[int, dict]] = {} + + +def register_contract(name: str, version: int, schema: dict) -> None: + """Register or update a contract schema version.""" + _REGISTRY[name] = (version, schema) + + +def get_contract(name: str) -> Tuple[int, dict] | None: + """Return the latest version and schema for a contract, or None.""" + return _REGISTRY.get(name) + + +def list_contracts() -> Dict[str, Tuple[int, dict]]: + return dict(_REGISTRY) + + +def _default_schemas() -> None: + # Seed with a couple of canonical contracts for MVP bootstrap. + register_contract( + "LocalTrade", + 1, + { + "fields": ["trade_id", "product_id", "venue", "price", "size", "side", "timestamp", "signer_id", "signature"] + }, + ) + register_contract( + "SharedSignals", + 1, + { + "fields": ["signals_version", "aggregated_risk", "margin_impact", "liquidity_metric"] + }, + ) + + +_default_schemas()