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[READ-ONLY] Mirror of https://github.com/openstatusHQ/openstatus. 🫖 Status page with uptime monitoring & API monitoring as code 🫖 openstatus.dev
bun drizzle-orm monitoring monitoring-as-code nextjs observability on-call open-source shadcn-ui status-page statuspage synthetic-monitoring tinybird turso uptime uptime-checker uptime-monitor
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2.5 kB · 79 lines
TypeScript
at incident-api
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980import type { FrozenMonitorUptimeDay } from "@openstatus/db/src/schema";
export type ComputeCountRow = { monitorId: string; day: string; // ISO or YYYY-MM-DD; sliced to YYYY-MM-DD here ok: number; degraded: number; error: number;};
// UTC first-of-month of the month before `now`, YYYY-MM-01export function previousMonth(now: Date): string { const d = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth() - 1, 1)); const mm = String(d.getUTCMonth() + 1).padStart(2, "0"); return `${d.getUTCFullYear()}-${mm}-01`;}
// [start of month, start of next month) in UTC msexport function monthRange(month: string): { start: number; end: number } { const [year, mo] = month.split("-").map(Number); return { start: Date.UTC(year, mo - 1, 1), end: Date.UTC(year, mo, 1), };}
export function monthDays(month: string): string[] { const [year, mo] = month.split("-").map(Number); const count = new Date(Date.UTC(year, mo, 0)).getUTCDate(); const prefix = month.slice(0, 8); // YYYY-MM- return Array.from( { length: count }, (_, i) => `${prefix}${String(i + 1).padStart(2, "0")}`, );}
/** * Pure assembly of one monitor's frozen month from already-fetched count * rows — no I/O. Returns null when the monitor has no counts in the month * (paused, or created later): no row is frozen rather than an all-zero month. */export function computeMonitorMonth(args: { month: string; // YYYY-MM-01 monitorId: number; counts: ComputeCountRow[];}): { days: FrozenMonitorUptimeDay[] } | null { const { month, monitorId, counts } = args; const prefix = month.slice(0, 8); // YYYY-MM-
// sum rather than overwrite: the pipe aggregates per day today, but a // silent overwrite here would freeze truncated counts permanently const byDay = new Map< string, { ok: number; degraded: number; error: number } >(); for (const row of counts) { if (row.monitorId !== String(monitorId)) continue; const day = row.day.slice(0, 10); if (!day.startsWith(prefix)) continue; const acc = byDay.get(day) ?? { ok: 0, degraded: 0, error: 0 }; acc.ok += row.ok; acc.degraded += row.degraded; acc.error += row.error; byDay.set(day, acc); } if (byDay.size === 0) return null;
const days = monthDays(month).map((day) => { const row = byDay.get(day); return { day, ok: row?.ok ?? 0, degraded: row?.degraded ?? 0, error: row?.error ?? 0, }; });
return { days };}