41 lines
1.4 KiB
TypeScript
41 lines
1.4 KiB
TypeScript
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import { createChildLogger } from "@/shared/logger/index";
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import { config } from "../../shared/config/index.js";
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import { deleteExpiredQdrantPoints } from "./qdrantClient.js";
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import { pruneExpiredTexts } from "./textCacheStore.js";
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const logger = createChildLogger("cache-prune");
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/** Expired-verdict sweep cadence. */
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const CACHE_PRUNE_INTERVAL_MS = 6 * 60 * 60 * 1000; // every 6 hours
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let lastCachePruneAt = 0;
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/**
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* Cache hygiene: purge expired moderation verdicts from Postgres and Qdrant.
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*
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* Expired entries are never reused (read filters check `expires_at`) but they
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* accumulate forever without a sweep. Called from the recovery interval; the
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* 6-hour throttle keeps it to one sweep per window.
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*/
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export function runCachePruneIfDue(now: number = Date.now()): void {
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if (now - lastCachePruneAt < CACHE_PRUNE_INTERVAL_MS) return;
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lastCachePruneAt = now;
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Promise.all([pruneExpiredTexts(), deleteExpiredQdrantPoints()])
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.then(([pgDeleted, qdDeleted]) => {
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if (pgDeleted > 0 || qdDeleted > 0) {
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logger.info(
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{ pgDeleted, qdDeleted },
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"Expired moderation cache pruned",
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);
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}
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})
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.catch((err: unknown) => {
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logger.warn({ error: String(err) }, "Moderation cache prune failed");
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});
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}
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/** Reset the throttle window (tests). */
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export function resetCachePruneState(): void {
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lastCachePruneAt = 0;
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}
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