"""DocEdit 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 DocEditAction, DocEditObservation


class DocEditEnv(EnvClient[DocEditAction, DocEditObservation, State]):
    """
    Client for the DocEdit Environment.

    Maintains a persistent WebSocket connection to the environment server.

    Example:
        >>> with DocEditEnv(base_url="http://localhost:8000") as client:
        ...     result = client.reset()
        ...     result = client.step(DocEditAction(operation="replace", target="revnue", content="revenue"))
    """

    def _step_payload(self, action: DocEditAction) -> Dict:
        return {
            "operation": action.operation,
            "target": action.target,
            "content": action.content,
            "position": action.position,
        }

    def _parse_result(self, payload: Dict) -> StepResult[DocEditObservation]:
        obs_data = payload.get("observation", {})
        observation = DocEditObservation(
            document=obs_data.get("document", ""),
            target_description=obs_data.get("target_description", ""),
            similarity=obs_data.get("similarity", 0.0),
            task_name=obs_data.get("task_name", ""),
            steps_remaining=obs_data.get("steps_remaining", 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),
        )