feat(cache): read cache TTLs from storage settings and renew tracked TMDB details (CACHE-2)
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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@@ -15,7 +15,14 @@ import {
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} from "@umt/adapters";
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import { DEFAULT_SETTINGS, type SitesSettings } from "@umt/contracts";
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import { pgTokenBucketFor, type SiteRow, sql } from "@umt/db";
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import { CACHE_REGIONS, sharedCache, type TmdbCachePolicy, tmdbCachePolicy } from "../../shared-cache.ts";
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import {
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CACHE_REGIONS,
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renewTrackedTmdbDetail,
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sharedCache,
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type TmdbCachePolicy,
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tmdbCachePolicy,
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tmdbDetailRef,
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} from "../../shared-cache.ts";
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import type { ServerContext } from "../types.ts";
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// 模块运行时依赖:站点适配器与限流器(每站一个实例,令牌在 PG 跨进程共享)、RSS 抓取器、TMDB 客户端、时钟。
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@@ -108,7 +115,11 @@ export class SourcesRuntime {
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...(baseUrl ? { baseUrl } : {}),
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...(this.overrides.fetch ? { fetch: this.overrides.fetch } : {}),
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// 请求响应进 PG 缓存(region tmdb.request),三进程共享;TTL / 条数上限 / 空结果短 TTL 取设置(对照 MP)
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cache: { ttlMs: policy.ttl * 1000, emptyTtlMs: policy.emptyTtl * 1000 },
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cache: {
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ttlMs: policy.ttl * 1000,
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searchTtlMs: policy.searchTtl * 1000,
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emptyTtlMs: policy.emptyTtl * 1000,
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},
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sharedCache: tmdbSharedCache(this.ctx, policy),
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})
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: null;
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@@ -276,17 +287,27 @@ export class SourcesRuntime {
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}
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}
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/** TMDB 请求响应缓存:PG kv_cache region=tmdb.request;PG 出错按未命中 / 不写处理,不让 TMDB 请求失败 */
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/**
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* TMDB 请求响应缓存:PG kv_cache region=tmdb.request;PG 出错按未命中 / 不写处理,不让 TMDB 请求失败。
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* 详情命中且属于追踪中的作品时续期(CACHE-2),续期失败只记 debug。
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*/
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function tmdbSharedCache(ctx: ServerContext, policy: TmdbCachePolicy): TmdbSharedCache {
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const cache = sharedCache(ctx);
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const warn = (err: unknown) =>
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ctx.logger.warn({ err: { message: (err as Error).message } }, "TMDB 缓存读写失败,按未命中处理");
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return {
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get: (key) =>
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cache.get(CACHE_REGIONS.tmdbRequest, key).catch((e) => {
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get: async (key) => {
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const v = await cache.get(CACHE_REGIONS.tmdbRequest, key).catch((e) => {
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warn(e);
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return null;
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}),
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});
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if (v !== null && tmdbDetailRef(key)) {
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await renewTrackedTmdbDetail(ctx, key, policy.ttl).catch((e) =>
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ctx.logger.debug({ err: { message: (e as Error).message } }, "TMDB 详情缓存续期失败"),
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);
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}
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return v;
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},
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set: (key, value, ttlMs) =>
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cache.set(CACHE_REGIONS.tmdbRequest, key, value, { ttl: ttlMs / 1000, maxsize: policy.maxsize }).catch(warn),
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};
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