from __future__ import annotations
from dataclasses import dataclass, field
from typing import Dict, Optional


@dataclass
class AdaptorContract:
    name: str
    version: str
    description: str


@dataclass
class GoCRegistry:
    contracts: Dict[str, AdaptorContract] = field(default_factory=dict)

    def register(self, name: str, version: str, description: str) -> AdaptorContract:
        c = AdaptorContract(name, version, description)
        self.contracts[f"{name}:{version}"] = c
        return c

    def get(self, name: str, version: str) -> Optional[AdaptorContract]:
        return self.contracts.get(f"{name}:{version}")