from __future__ import annotations

from dataclasses import dataclass, field
from typing import Dict, List

from .contracts import Signal, SignalDelta


@dataclass
class GraphOfContractsRegistry:
    version: int = 1
    contracts: Dict[str, Dict] = field(default_factory=dict)
    adapters: List[str] = field(default_factory=list)

    def register_contract(self, name: str, contract: dict) -> None:
        self.contracts[name] = contract

    def list_contracts(self) -> List[str]:
        return list(self.contracts.keys())

    def add_adapter(self, adapter_name: str) -> None:
        if adapter_name not in self.adapters:
            self.adapters.append(adapter_name)