# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

"""
Rlve Gym Environment HTTP Client.

This module provides the client for connecting to a Rlve Gym Environment server
over HTTP.
"""

from typing import Dict

from openenv_core.client_types import StepResult
from openenv_core.http_env_client import HTTPEnvClient

from .models import RlveGymState, RlveGymAction, RlveGymObservation


class RlveGymEnv(HTTPEnvClient[RlveGymAction, RlveGymObservation]):
    """
    HTTP client for the Rlve Gym Environment.

    This client connects to a RlveGymEnvironment HTTP server and provides
    methods to interact with it: reset(), step(), and state access.
    """

    def _step_payload(self, action: RlveGymAction) -> Dict:
        """
        Convert RlveGymAction to JSON payload for step request.

        Args:
            action: RlveGymAction instance

        Returns:
            Dictionary representation suitable for JSON encoding
        """
        return {
            "output": action.output,
        }

    def _parse_result(self, payload: Dict) -> StepResult[RlveGymObservation]:
        """
        Parse server response into StepResult[RlveGymObservation].

        Args:
            payload: JSON response from server

        Returns:
            StepResult with RlveGymObservation
        """
        obs = RlveGymObservation(**payload["observation"])
        return StepResult(
            observation=obs,
            reward=payload.get("reward"),
            done=payload.get("done", False),
        )

    def _parse_state(self, payload: Dict) -> RlveGymState:
        return RlveGymState(**payload)