client.py

"""Defender RL Environment Client."""

from typing import Dict

from openenv.core import EnvClient
from openenv.core.client_types import StepResult
from openenv.core.env_server.types import State

from .models import DefenderAction, DefenderObservation


class DefenderEnv(EnvClient[DefenderAction, DefenderObservation, State]):
    """Client for the Defender RL Environment.

    Maintains a persistent WebSocket connection. Each client instance gets its
    own dedicated environment session on the server (factory mode + concurrency).

    Example:
        >>> with DefenderEnv(base_url="http://localhost:8000") as client:
        ...     result = client.reset()
        ...     print(result.observation.attacker_message)
        ...     result = client.step(DefenderAction(response="I can't share that."))
        ...     print(result.reward, result.done)
    """

    def _step_payload(self, action: DefenderAction) -> Dict:
        return {"response": action.response}

    def _parse_result(self, payload: Dict) -> StepResult[DefenderObservation]:
        obs_data = payload.get("observation", {})
        observation = DefenderObservation(
            attacker_message=obs_data.get("attacker_message", ""),
            conversation_history=obs_data.get("conversation_history", []),
            turn_index=obs_data.get("turn_index", 0),
            system_prompt=obs_data.get("system_prompt", ""),
            scenario_id=obs_data.get("scenario_id", ""),
            secret_type=obs_data.get("secret_type", ""),
            attacker_id=obs_data.get("attacker_id", ""),
            leak_occurred=obs_data.get("leak_occurred", False),
            leaked_piece=obs_data.get("leaked_piece", ""),
            done=payload.get("done", False),
            reward=payload.get("reward"),
        )
        return StepResult(
            observation=observation,
            reward=payload.get("reward"),
            done=payload.get("done", False),
        )

    def _parse_state(self, payload: Dict) -> State:
        return State(
            episode_id=payload.get("episode_id"),
            step_count=payload.get("step_count", 0),
        )