"""仅更新画布属性，不修改组件或数据源"""

from typing import Literal

from pydantic import Field, JsonValue

from app.schemas.base import NonBlankString

from .base import ActionModel


class UpdateCanvasAction(ActionModel):
    type: Literal["update_canvas"] = "update_canvas"
    properties: dict[NonBlankString, JsonValue] = Field(
        min_length=1,
        description="要替换的 canvas 顶层字段，如 width、height、backgroundColor；未提供的字段保持不变",
    )