from typing import Any, Literal from pydantic import BaseModel, Field from ..core.base import RenderableComponent __all__ = ["KpiCard", "Timeline", "TimelineItem"] 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" """组件类型""" 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" class TimelineItem(BaseModel): """时间轴中的单个事件点。""" timestamp: str = Field(..., description="显示在时间点旁边的时间或标签") """显示在时间点旁边的时间或标签""" title: str = Field(..., description="事件的标题") """事件的标题""" content: str = Field(..., description="事件的详细描述") """事件的详细描述""" icon: str | None = Field(default=None, description="可选的自定义图标SVG路径") """可选的自定义图标SVG路径""" color: str | None = Field(default=None, description="可选的自定义颜色,覆盖默认") """可选的自定义颜色,覆盖默认""" class Timeline(RenderableComponent): """一个垂直时间轴组件,用于按顺序展示事件。""" component_type: Literal["timeline"] = "timeline" """组件类型""" items: list[TimelineItem] = Field( default_factory=list, description="时间轴项目列表" ) """时间轴项目列表""" @property def template_name(self) -> str: return "components/widgets/timeline"