from __future__ import annotations

from typing import Any
from uuid import UUID

from graph.runtime import GraphRuntime


class LangGraphRuntime(GraphRuntime):
    """Initial LangGraph adapter placeholder.

    M1 keeps this deterministic. M2 will wire the autonomous task loop here while
    preserving this boundary.
    """

    async def start(self, project_id: UUID) -> str:
        return f"project-{project_id}"

    async def pause(self, run_id: str) -> None:
        return None

    async def resume(self, run_id: str) -> None:
        return None

    async def cancel(self, run_id: str) -> None:
        return None

    async def signal(self, run_id: str, event: dict[str, Any]) -> None:
        return None