Files
manage/frontend/src/widgets/PrometheusMetricWidget.tsx
T

63 lines
1.6 KiB
TypeScript

import { Alert, AlertDescription } from "@/components/ui/alert";
import { Skeleton } from "@/components/ui/skeleton";
import { SectionCard } from "../components/SectionCard";
import { useWidgetData } from "../hooks/useWidgets";
import type { WidgetInstance } from "../types";
interface Props {
widget: WidgetInstance;
refreshIntervalMs: number;
description?: string;
}
type PromQLResult = {
resultType?: string;
result?: unknown;
};
type PromQLVectorSample = {
metric?: Record<string, string>;
value?: [number, string];
};
function formatPrometheusValue(result: PromQLResult | undefined): string {
if (!result) return "No data";
if (result.resultType === "scalar" && Array.isArray(result.result)) {
return String(result.result[1] ?? "No data");
}
if (
result.resultType === "vector" &&
Array.isArray(result.result) &&
result.result.length > 0
) {
const first = result.result[0] as PromQLVectorSample;
if (first.value) return String(first.value[1]);
}
return JSON.stringify(result, null, 2);
}
export function PrometheusMetricWidget({
widget,
refreshIntervalMs,
description,
}: Props) {
const { data, isLoading } = useWidgetData(widget.id, refreshIntervalMs);
const result = data?.data?.result as PromQLResult | undefined;
return (
<SectionCard title={widget.title} description={description}>
{isLoading && !data ? (
<Skeleton className="h-10 w-32" />
) : data?.error ? (
<Alert variant="destructive">
<AlertDescription>{data.error}</AlertDescription>
</Alert>
) : (
<pre className="whitespace-pre-wrap text-sm">
{formatPrometheusValue(result)}
</pre>
)}
</SectionCard>
);
}