f0a6d6c042
The page opens on the firing ones. The button lists every instance again, with the state filter and the tones back, so the table's filtering is visible. The saved-filters key goes back to its original name, since the state column is a filter again.
40 lines
1.4 KiB
TypeScript
40 lines
1.4 KiB
TypeScript
// What the alerts page lists, apart from how it draws it: the shape of one
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// instance from swarm-controller's `GET /api/alerts` and which of them count
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// as firing.
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export interface Alert {
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name: string;
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// Grafana's state for the instance: `Alerting`, `Pending`, `NoData` or
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// `Error`.
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state: string;
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active_at: string | null;
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summary: string | null;
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labels: Record<string, string>;
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}
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const FIRING = "Alerting";
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// The instances the page shows: the ones Grafana says are firing now. Pending,
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// no-data and errored ones are left to Grafana's own list.
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export function firingAlerts(alerts: Alert[]): Alert[] {
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return alerts.filter((a) => a.state === FIRING);
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}
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// What the page lists: the firing ones, or every instance once the operator
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// asks for the rest.
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export function listedAlerts(alerts: Alert[], showAll: boolean): Alert[] {
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return showAll ? alerts : firingAlerts(alerts);
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}
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// Grafana reports an instance that never became active with the zero time,
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// which `Date.parse` reads as year 1.
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export function activeSinceMs(a: Alert): number | null {
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if (a.active_at === null) return null;
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const ms = Date.parse(a.active_at);
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return Number.isNaN(ms) || ms <= 0 ? null : ms;
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}
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// A row needs a key that is unique among instances of the same rule.
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export function alertKey(a: Alert): string {
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return JSON.stringify(Object.entries(a.labels).sort());
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}
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