"""
PERMANENCE — OpenEnv-compatible client.

Uses ``openenv.core.SyncEnvClient`` for typed, WebSocket-based
communication with a running PERMANENCE server.

Usage:
    from client import PermanenceEnvClient
    from models import PermanenceAction

    client = PermanenceEnvClient("http://localhost:7860")
    obs = client.reset()
    obs = client.step(PermanenceAction(text="<action id='draft_internal_memo'/>..."))
    print(obs.text, obs.reward, obs.done)
"""
from __future__ import annotations

import os
from typing import Optional

from openenv.core import SyncEnvClient

from models import PermanenceAction, PermanenceObservation, PermanenceState

DEFAULT_ENV_URL = os.getenv(
    "PERMANENCE_ENV_URL",
    "https://chane35-permanence.hf.space",
)


class PermanenceEnvClient(SyncEnvClient[PermanenceAction, PermanenceObservation, PermanenceState]):
    """
    Typed OpenEnv client for the PERMANENCE environment.

    Connects to a running PERMANENCE server and provides typed
    ``reset()``, ``step()``, and ``state`` access.
    """

    action_type = PermanenceAction
    observation_type = PermanenceObservation
    state_type = PermanenceState

    def __init__(self, base_url: str = DEFAULT_ENV_URL):
        super().__init__(base_url=base_url)