from typing import Any, Literal from pydantic import Field from ..core.base import RenderableComponent __all__ = ["KpiCard"] class KpiCard(RenderableComponent): """一个用于展示关键性能指标(KPI)的统计卡片。""" component_type: Literal["kpi_card"] = "kpi_card" label: str = Field(..., description="指标的标签或名称") """指标的标签或名称""" value: Any = Field(..., description="指标的主要数值") """指标的主要数值""" unit: str | None = Field(default=None, description="数值的单位,可选") """数值的单位,可选""" change: str | None = Field( default=None, description="与上一周期的变化,例如 '+15%' 或 '-100'" ) """与上一周期的变化,例如 '+15%' 或 '-100'""" change_type: Literal["positive", "negative", "neutral"] = Field( default="neutral", description="变化的类型,用于决定颜色" ) """变化的类型,用于决定颜色""" icon_svg: str | None = Field( default=None, description="卡片中显示的可选图标 (SVG path data)" ) """卡片中显示的可选图标 (SVG path data)""" @property def template_name(self) -> str: return "components/widgets/kpi_card"