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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 BatteryAction, BatteryObservation

class BatteryEnv(EnvClient[BatteryAction, BatteryObservation, State]):
    """
    Client for the Battery Environment.
    """
    def _step_payload(self, action: BatteryAction) -> Dict:
        return {
            "market_choice": action.market_choice,
            "p_fraction": action.p_fraction,
        }

    def _parse_result(self, payload: Dict) -> StepResult[BatteryObservation]:
        obs_data = payload.get("observation", {})
        observation = BatteryObservation(
            energy_price=obs_data.get("energy_price", 0.0),
            fcr_price=obs_data.get("fcr_price", 0.0),
            soc=obs_data.get("soc", 0.0),
            reward=payload.get("reward"),
            done=payload.get("done", False),
            metadata=obs_data.get("metadata", {}),
        )
        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),
        )