# 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.

"""
Data models for the My Env Environment.

The my_env environment is a simple test environment that echoes back messages.
"""
from typing import Optional
from pydantic import Field
from openenv.core.env_server.types import Action, Observation


class MyAction(Action):
    """Action for the My Env environment - just a message to echo."""

    move: int = Field(..., description="0 = left, 1 = right")


class MyObservation(Observation):
    """Observation from the My Env environment - the echoed message."""

    state: int = Field(..., description="Current position (0–4)")
    reward: Optional[float] = None
    done: bool = Field(...)