feat(identity): 改 TMDB 映射后清旧字段、full 刷新并自动更新重刮

- setEntityIdentity:TMDB 映射变化时同事务清掉作品及季 / 集单元的 tmdb 来源字段(人工覆盖 / 锁定保留,
  海报背景图不再保留旧作品的),退役没锁的 IMDb 映射,提交后排 full 刷新
- refreshMetadata:NFO 相关字段(作品或季 / 集)有变化时调 scheduleEntityRescrape,评分票数变化不触发

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

apps/server/src/modules/sources-identity/service/identity-admin.ts

@@ -29,6 +29,7 @@ import {
   settleEpisodeDecision,
 } from "./episode-resolution.ts";
 import { detachFromIdentityDecisions } from "./identity-decisions.ts";
+import { clearTmdbMetadata } from "./metadata.ts";
 import { metadataLanguages, metadataTextOptions } from "./metadata-rich.ts";
 import { recordAttempt } from "./resolve.ts";
 import { backfillRecognizeCache } from "./tmdb-recognize-cache.ts";
@@ -271,10 +272,12 @@ async function retireIdentity(exec: Exec, row: ExternalIdentityRow, actor: Actor
 /**
  * 改作品的外部映射:同 provider+类型的旧 accepted 映射退役(留修订并锁定,防止自动匹配改回),
  * 新映射 accepted + 人工锁。目标身份已被其它作品接受时 409(应走合并)。
+ * TMDB 映射变了:同一事务里清掉该作品(及季 / 集单元)tmdb 来源的元数据(人工覆盖 / 锁定保留),提交后排一次
+ * full 刷新;刷新写回新身份的字段后,刮削过的作品自动排「更新」模式重刮(refreshMetadata → scheduleEntityRescrape)。
  */
 export async function setEntityIdentity(rt: SourcesRuntime, entityId: string, input: EntityIdentitySet, actor: Actor) {
   const { ctx } = rt;
-  return ctx.db.transaction().execute(async (trx) => {
+  const r = await ctx.db.transaction().execute(async (trx) => {
     const id = await resolveEntityId(trx, entityId);
     if (!id) throw new ApiException("not_found", "作品不存在");
     const other = await entityByExternal(trx, input);
@@ -297,6 +300,21 @@ export async function setEntityIdentity(rt: SourcesRuntime, entityId: string, in
       reason: input.reason ?? null,
     });
     if (!newId) throw new ApiException("conflict", "外部身份唯一约束冲突");
+    if (input.provider === "tmdb") {
+      // 旧 TMDB 带出来的 IMDb 映射(没人工锁的)一并退役:NFO 里 IMDb 是 default uniqueid,留着会被认成旧作品;
+      // 刷新后 NFO 取新详情里的 IMDb
+      const derived = await trx
+        .selectFrom("external_identity")
+        .selectAll()
+        .where("media_entity_id", "=", id)
+        .where("content_unit_id", "is", null)
+        .where("provider", "=", "imdb")
+        .where("status", "=", "accepted")
+        .where("locked", "=", false)
+        .execute();
+      for (const o of derived) await retireIdentity(trx, o, actor, "tmdb_mapping_changed");
+      await clearTmdbMetadata(trx, id, rt.now());
+    }
     await audit(
       trx,
       actor,
@@ -310,6 +328,20 @@ export async function setEntityIdentity(rt: SourcesRuntime, entityId: string, in
     );
     return { mediaEntityId: id, changed: true, identityId: newId, retired: olds.map((o) => o.id) };
   });
+  if (r.changed && input.provider === "tmdb" && r.identityId)
+    await ctx.engine
+      .enqueue(
+        "refreshMetadata",
+        { mediaEntityId: r.mediaEntityId, full: true },
+        { idempotencyKey: `refreshMetadata:identity:${r.identityId}`, traceId: r.mediaEntityId },
+      )
+      .catch((err: unknown) =>
+        ctx.logger.warn(
+          { entityId: r.mediaEntityId, err: { message: (err as Error).message } },
+          "改映射后元数据刷新没排上",
+        ),
+      );
+  return r;
 }
 
 /** 外部身份字段修订(乐观并发 expectedRevision);每次变更写 identity_revision */

apps/server/src/modules/sources-identity/service/metadata-rich.ts

@@ -315,8 +315,20 @@ export interface SeasonMetadataResult {
   changedUnits: number;
   /** DH-1:临时转正式的集单元数(季单元转正不计) */
   promoted: number;
+  /** 写进 NFO 的字段(名称、简介、日期、时长、剧照、季海报)有变化的单元数;刷新后据此决定要不要自动重刮 */
+  nfoChangedUnits?: number;
 }
 
+/** 内容单元里写进 NFO 的字段(评分 / 票数变化不触发自动重刮) */
+export const UNIT_NFO_FIELDS: ReadonlySet<string> = new Set([
+  "name",
+  "overview",
+  "airDate",
+  "runtime",
+  "stillPath",
+  "posterPath",
+]);
+
 /**
  * 季详情 → 季单元与集单元的字段级元数据。集单元按(作品, 季, 集号)找最早建的未退役单元,没有时:
  * create = true(full 刷新 / 追踪中的季)建 confirmed 单元;否则只更新已有单元(集单元仍由发布 / 文件懒建)。
@@ -331,7 +343,14 @@ export async function applySeasonMetadata(
   opts: { create?: boolean } = {},
 ): Promise<SeasonMetadataResult> {
   const create = opts.create ?? true;
-  const out: SeasonMetadataResult = { season: sd.seasonNumber, episodes: 0, created: 0, changedUnits: 0, promoted: 0 };
+  const out: SeasonMetadataResult = {
+    season: sd.seasonNumber,
+    episodes: 0,
+    created: 0,
+    changedUnits: 0,
+    promoted: 0,
+    nfoChangedUnits: 0,
+  };
   if (sd.seasonNumber < 0) return out;
   const seasonUnit = await ensureSeason(exec, entityId, sd.seasonNumber, sd.name);
   const units = await exec
@@ -399,6 +418,7 @@ export async function applySeasonMetadata(
     if (written.length || t.fresh) {
       const r = await projectUnit(exec, t.unitId, now);
       if (r.changedFields.length) out.changedUnits++;
+      if (r.changedFields.some((f) => UNIT_NFO_FIELDS.has(f))) out.nfoChangedUnits = (out.nfoChangedUnits ?? 0) + 1;
     }
   }
   out.episodes = eps.length;

apps/server/src/modules/sources-identity/service/metadata.ts

@@ -17,6 +17,7 @@ import type {
 } from "@umt/contracts";
 import { sql } from "@umt/db";
 import { ApiException } from "../../../http/errors.ts";
+import { scheduleEntityRescrape } from "../../acquisition-organize/services/scrape.ts";
 import { jsonb } from "../rows.ts";
 import type { SourcesRuntime } from "../runtime.ts";
 import { type Actor, audit, type Exec } from "./common.ts";
@@ -118,6 +119,102 @@ export async function writeEnrichmentFields(
   }
 }
 
+/** 作品里写进 NFO 的字段:刷新后这些字段有变化才自动重刮(评分、票数、播出状态等不算) */
+const ENTITY_NFO_FIELDS: ReadonlySet<string> = new Set([
+  "title",
+  "originalTitle",
+  "year",
+  "overview",
+  "tagline",
+  "releaseDate",
+  "genres",
+  "originCountry",
+  "platform",
+  "runtime",
+  "cast",
+  "crew",
+  "externalIds",
+  "posterPath",
+  "backdropPath",
+]);
+
+/**
+ * 改作品的 TMDB 映射后:清掉该作品及其季 / 集单元的 tmdb 来源字段(metadata_field 与投影出的最终值),
+ * 人工覆盖与锁定字段保留;单元的 title / air_date 列随 name / airDate 一起清空。之后由 full 刷新按新身份重新填,
+ * 避免新身份的 NFO 混进旧作品的标题、简介、IMDb、海报(海报 / 背景图「TMDB 没有时保留旧值」不能保留旧作品的)。
+ */
+export async function clearTmdbMetadata(trx: Exec, entityId: string, now: Date): Promise<void> {
+  const keep = (meta: Record<string, FinalFieldValue>, locks: Set<string>, overridden: Set<string>) => {
+    const out: Record<string, FinalFieldValue> = {};
+    for (const [k, v] of Object.entries(meta))
+      if (v?.source !== "tmdb" || locks.has(k) || overridden.has(k) || v.locked) out[k] = v;
+    return out;
+  };
+  const e = await trx
+    .selectFrom("media_entity")
+    .select(["metadata", "field_locks"])
+    .where("id", "=", entityId)
+    .forUpdate()
+    .executeTakeFirstOrThrow();
+  const entityOverrides = await trx
+    .selectFrom("field_override")
+    .select("field")
+    .where("media_entity_id", "=", entityId)
+    .execute();
+  await trx
+    .deleteFrom("metadata_field")
+    .where("media_entity_id", "=", entityId)
+    .where("content_unit_id", "is", null)
+    .where("source", "=", "tmdb")
+    .execute();
+  await trx
+    .updateTable("media_entity")
+    .set({
+      metadata: jsonb(
+        keep(
+          (e.metadata ?? {}) as Record<string, FinalFieldValue>,
+          new Set(e.field_locks),
+          new Set(entityOverrides.map((o) => o.field)),
+        ),
+      ),
+      updated_at: now,
+    })
+    .where("id", "=", entityId)
+    .execute();
+  // 其它来源(web / agent 补全)按原规则重新投影
+  await project(trx, entityId, now);
+
+  const units = await trx
+    .selectFrom("content_unit")
+    .select(["id", "metadata", "field_locks"])
+    .where("media_entity_id", "=", entityId)
+    .execute();
+  if (!units.length) return;
+  const ids = units.map((u) => u.id);
+  const unitOverrides = await trx
+    .selectFrom("field_override")
+    .select(["content_unit_id", "field"])
+    .where("content_unit_id", "in", ids)
+    .execute();
+  await trx.deleteFrom("metadata_field").where("content_unit_id", "in", ids).where("source", "=", "tmdb").execute();
+  for (const u of units) {
+    const meta = (u.metadata ?? {}) as Record<string, FinalFieldValue>;
+    const overridden = new Set(unitOverrides.filter((o) => o.content_unit_id === u.id).map((o) => o.field));
+    const next = keep(meta, new Set(u.field_locks), overridden);
+    if (Object.keys(next).length === Object.keys(meta).length) continue;
+    await trx
+      .updateTable("content_unit")
+      .set({
+        metadata: jsonb(next),
+        ...(next.name ? {} : { title: null }),
+        ...(next.airDate ? {} : { air_date: null }),
+        updated_at: now,
+      })
+      .where("id", "=", u.id)
+      .execute();
+  }
+}
+
 export interface RefreshResult {
   status: "refreshed" | "skipped" | "failed";
   reason?: string;
@@ -240,7 +337,7 @@ export async function refreshMetadata(
   }
   const now = rt.now();
   const rev = `tmdb:${ident.entity_type}/${ident.external_id}`;
-  return ctx.db.transaction().execute(async (trx) => {
+  const result = await ctx.db.transaction().execute(async (trx) => {
     if (richDetail) await writeRichEntityFields(trx, id, richDetail, rev, now);
     else await writeTmdbFields(trx, id, detail, rev, now);
     await trx
@@ -282,6 +379,15 @@ export async function refreshMetadata(
         : {}),
     };
   });
+  // 写进 NFO 的字段有变化:刮削过的作品延后排一次「更新」模式重刮(期间再刷新合进同一条);失败只记日志
+  const nfoChanged =
+    result.changedFields.some((f) => ENTITY_NFO_FIELDS.has(f)) ||
+    (result.episodes ?? []).some((x) => (x.nfoChangedUnits ?? 0) > 0);
+  if (nfoChanged)
+    await scheduleEntityRescrape({ ctx }, id).catch((err: unknown) =>
+      ctx.logger.warn({ entityId: id, err: { message: (err as Error).message } }, "元数据刷新后重刮没排上"),
+    );
+  return result;
 }
 
 /**