# SPDX-License-Identifier: BSD-3-Clause

"""Action and observation models for the CrossDomain Reasoning environment."""

from typing import Literal

from openenv.core.env_server.types import Action, Observation
from pydantic import Field


class CrossDomainAction(Action):
    """One move: run Python code as a scratchpad, or submit the final answer."""

    tool: Literal["python", "submit"] = Field(
        ...,
        description=(
            "'python' runs `input` as a Python 3 script and returns its stdout/stderr; "
            "'submit' ends the episode with `input` as the final answer."
        ),
    )
    input: str = Field(
        ...,
        description="Python source code for 'python', or the final answer text for 'submit'.",
    )


class CrossDomainObservation(Observation):
    """What the agent sees after reset or a step."""

    task: str = Field(default="", description="The problem statement (reset only).")
    output: str = Field(default="", description="Output of the last tool call, or grading feedback.")
    steps_left: int = Field(default=0, description="Tool calls left before the episode is cut off.")