# 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.

"""
Benchmark Environment Clients.

Provides HTTP and WebSocket clients for the Benchmark Environment.
"""

from typing import Dict

from openenv.core.client_types import StepResult
from openenv.core.env_server.types import State
from openenv.core.http_env_client import HTTPEnvClient
from openenv.core.ws_env_client import WebSocketEnvClient

from .models import BenchmarkAction, BenchmarkObservation


class BenchmarkEnv(HTTPEnvClient[BenchmarkAction, BenchmarkObservation]):
    """HTTP client for the Benchmark Environment."""

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

    def _parse_result(self, payload: Dict) -> StepResult[BenchmarkObservation]:
        obs_data = payload.get("observation", {})
        observation = BenchmarkObservation(
            host_url=obs_data.get("host_url", ""),
            pid=obs_data.get("pid", 0),
            session_hash=obs_data.get("session_hash", ""),
            waited_seconds=obs_data.get("waited_seconds", 0.0),
            timestamp=obs_data.get("timestamp", 0.0),
            done=payload.get("done", False),
            reward=payload.get("reward"),
            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),
        )


class BenchmarkEnvWS(WebSocketEnvClient[BenchmarkAction, BenchmarkObservation]):
    """WebSocket client for the Benchmark Environment."""

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

    def _parse_result(self, payload: Dict) -> StepResult[BenchmarkObservation]:
        obs_data = payload.get("observation", {})
        observation = BenchmarkObservation(
            host_url=obs_data.get("host_url", ""),
            pid=obs_data.get("pid", 0),
            session_hash=obs_data.get("session_hash", ""),
            waited_seconds=obs_data.get("waited_seconds", 0.0),
            timestamp=obs_data.get("timestamp", 0.0),
            done=payload.get("done", False),
            reward=payload.get("reward"),
            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),
        )