homeio

1import type {
2  MetricsHistoryPoint,
3  MetricsHistoryRange,
4  SystemMetricsSnapshot,
5} from "@/lib/shared/contracts/system";
6
7export const METRICS_HISTORY_SAMPLE_MS = 5_000;
8
9export const METRICS_HISTORY_RANGE_MS: Record<MetricsHistoryRange, number> = {
10  "15m": 15 * 60 * 1000,
11  "1h": 60 * 60 * 1000,
12  "24h": 24 * 60 * 60 * 1000,
13};
14
15function finiteOrNull(value: number | null | undefined) {
16  return typeof value === "number" && Number.isFinite(value) ? value : null;
17}
18
19/** The part of a metrics snapshot the Monitor's history charts keep. */
20export function toHistoryPoint(snapshot: SystemMetricsSnapshot, t: number): MetricsHistoryPoint {
21  return {
22    t,
23    cpuPercent: finiteOrNull(snapshot.cpu.normalizedPercent),
24    memoryPercent: finiteOrNull(snapshot.memory.usedPercent),
25    temperatureCelsius: finiteOrNull(snapshot.temperature.mainCelsius),
26    downloadMbps: finiteOrNull(snapshot.wifi.downloadMbps),
27    uploadMbps: finiteOrNull(snapshot.wifi.uploadMbps),
28    diskReadMBps: finiteOrNull(snapshot.diskIo?.readMBps),
29    diskWriteMBps: finiteOrNull(snapshot.diskIo?.writeMBps),
30  };
31}
32