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from __future__ import annotations

from typing import Any, Literal

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


class PptAgentAction(Action):
    """Structured action for the prompt-to-PPT environment skeleton."""

    action_type: Literal[
        "create_slide",
        "update_slide",
        "delete_slide",
        "save_presentation",
        "set_theme",
    ] = Field(..., description="Macro action to execute")
    slide_index: int | None = Field(
        default=None,
        ge=1,
        description="Target slide index using 1-based indexing",
    )
    payload: dict[str, Any] = Field(
        default_factory=dict,
        description="Action-specific arguments for the macro action",
    )


class PptAgentObservation(Observation):
    """Observation for the prompt-to-PPT environment skeleton."""

    task_name: str = Field(default="", description="Current task identifier")
    difficulty: str = Field(default="", description="Scenario difficulty label")
    slide_count: int = Field(default=0, ge=0, description="Current number of slides")
    task_prompt: str = Field(default="", description="Full task prompt from the env")
    source_context: str = Field(
        default="",
        description="Flattened source-pack context available to the agent",
    )
    last_action_error: str | None = Field(
        default=None,
        description="Last action validation or execution error",
    )
    score: float = Field(default=0.0, ge=0.0, le=1.0, description="Normalized score")
    prompt_summary: str = Field(default="", description="Current prompt summary")
    last_action_result: dict[str, Any] | None = Field(
        default=None,
        description="Structured result from the last tool-backed action",
    )
    termination_reason: str | None = Field(
        default=None,
        description="Episode termination reason when done is true",
    )
    metadata: dict[str, Any] = Field(
        default_factory=dict,
        description="Additional debug and reward metadata for the last step",
    )