export function parsePack(text: string) {
if (Buffer.byteLength(text) > 1_048_576) throw Error("pack too large");
const p = JSON.parse(text);
if (
p.schemaVersion !== 1 ||
!Array.isArray(p.rows) ||
!Array.isArray(p.redactions) ||
!Number.isFinite(Date.parse(p.observedAt))
)
throw Error("invalid context pack");
for (const r of p.rows) {
if (
!r.object?.uid ||
typeof r.reason !== "string" ||
typeof r.type !== "string" ||
!Number.isInteger(r.count) ||
r.count < 1 ||
!Array.isArray(r.eventUIDs) ||
!r.eventUIDs.length ||
r.eventUIDs.some((x) => typeof x !== "string" || !x) ||
!Number.isFinite(Date.parse(r.firstOccurrence)) ||
!Number.isFinite(Date.parse(r.lastOccurrence)) ||
Date.parse(r.firstOccurrence) > Date.parse(r.lastOccurrence)
)
throw Error("invalid timeline row");
}
return p;
}
const escape = (s: any) =>
String(s ?? "").replace(
/[&<>"']/g,
(c) =>
({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[
c
]!,
);
export function timeline(p: any) {
const rows = p.rows
.map(
(r: any) =>
`| ${escape(r.firstOccurrence)}last ${escape(r.lastOccurrence)} | ${escape(r.object.namespace)}/${escape(r.object.name)}UID ${escape(r.object.uid)} / revision ${escape(r.revision ?? "unknown")} | ${escape(r.reason)} (${r.count})${escape(r.investigation)} | ${r.eventUIDs.map(escape).join(", ")} |
`,
)
.join("");
const payload = JSON.stringify(p).replaceAll("<", "\\u003c");
return `Kubernetes event storyboardKubernetes event storyboard
Observed ${escape(p.observedAt)}. Occurrence time is shown separately.
${p.redactions.map(escape).join("; ")}. Event reasons suggest investigations, not proven causes.
`;
}