import {
  AUDIENCES_FIXTURE_RELEASES,
  createMockNexusPhpSite,
  createMockTmdb,
  type MockNexusPhpSite,
  type MockTmdb,
} from "@umt/testkit";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { DETAIL_PAGE_REGION } from "../../src/modules/sources-identity/service/detail-page.ts";
import { resolveRelease } from "../../src/modules/sources-identity/service/resolve.ts";
import { snapshotSite } from "../../src/modules/sources-identity/service/snapshot.ts";
import { sharedCache } from "../../src/shared-cache.ts";
import { createHarness, type Harness, json, pgAvailable, seedSite } from "./harness.ts";

const up = await pgAvailable();

const SHOT = "http://93.184.216.34/shots/1.png";
const PNG = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 1, 2, 3, 4]);

describe.skipIf(!up)("站点详情页扩展内容:按需抓 + 24 小时缓存 + 截图代理 + 外部 ID 进身份解析", () => {
  let h: Harness;
  let mock: MockNexusPhpSite;
  let tmdb: MockTmdb;
  let siteId: string;
  let relId: string;
  const imageFetches: string[] = [];

  beforeAll(async () => {
    const releases = AUDIENCES_FIXTURE_RELEASES.map((r) =>
      r.id === "812345"
        ? {
            ...r,
            descriptionHtml: `◎片名 沙丘2<br>◎IMDb <a href="https://www.imdb.com/title/tt15239678/">tt15239678</a><br>
<img src="${SHOT}"><img src="pic/smilies/2.gif">
<div class="codemain">General<br>Complete name : Dune.mkv<br>Format : Matroska<br>File size : 78 GiB<br>Duration : 2 h 46 min<br>Video<br>Format : HEVC</div>`,
          }
        : r,
    );
    mock = await createMockNexusPhpSite({ releases });
    tmdb = await createMockTmdb();
    h = await createHarness("detailpage", {
      tmdbUrl: tmdb.url,
      fetch: (input, init) => {
        const url = typeof input === "string" ? input : input instanceof URL ? input.href : input.url;
        if (url.startsWith("http://93.184.216.34/")) {
          imageFetches.push(url);
          return Promise.resolve(new Response(PNG, { status: 200, headers: { "content-type": "image/png" } }));
        }
        return fetch(input, init);
      },
    });
    siteId = (await seedSite(h, { baseUrl: `${mock.baseUrl}/`, cookie: mock.cookie })).site.id;
    await snapshotSite(h.rt, { siteId, kind: "manual" });
    relId = (
      await h.db
        .selectFrom("source_release")
        .select(["id"])
        .where("site_release_id", "=", "812345")
        .executeTakeFirstOrThrow()
    ).id;
  });
  afterAll(async () => {
    await h?.close();
    await mock?.close();
    await tmdb?.close();
  });

  const detailRequests = () => mock.requests.filter((r) => r.path.startsWith("/details.php")).length;

  it("未抓过:page 为 null,标明站点支持详情页;不刷新就不请求站点", async () => {
    const before = detailRequests();
    const d = await json(await h.req(`/sites/${siteId}/releases/${relId}`));
    expect(d.status).toBe(200);
    expect(d.body.data).toMatchObject({ page: null, detailSupported: true });
    expect(detailRequests()).toBe(before);
  });

  it("refresh 抓一次:简介 / MediaInfo / 截图(代理路径)/ IMDb;外部 ID 写 raw._detail;缓存期内不再请求", async () => {
    const before = detailRequests();
    const d = await json(await h.req(`/sites/${siteId}/releases/${relId}?refresh=true`));
    expect(d.body.data.refreshError).toBeNull();
    expect(detailRequests()).toBe(before + 1);
    const page = d.body.data.page;
    expect(page).toMatchObject({
      imdbId: "tt15239678",
      screenshots: [{ url: `/api/v1/img/site-detail/${relId}/0`, host: "93.184.216.34" }],
    });
    expect(page.mediaInfo).toMatch(/^General\nComplete name : Dune.mkv/);
    expect(page.descriptionText).toContain("◎片名 沙丘2");
    expect(page.descriptionText).not.toContain("Complete name");
    // 展示结构:读缓存时现算
    expect(page.infoBlock).toContainEqual({ key: "片名", value: "沙丘2" });
    expect(page.media).toMatchObject({
      kind: "mediainfo",
      general: { fileName: "Dune.mkv", container: "Matroska", size: "78 GiB", duration: "2 h 46 min" },
      video: [{ codec: "HEVC" }],
    });
    expect(Array.isArray(page.fileTree)).toBe(true);
    const row = await h.db
      .selectFrom("source_release")
      .select(["raw"])
      .where("id", "=", relId)
      .executeTakeFirstOrThrow();
    expect((row.raw as { _detail?: unknown })._detail).toEqual({ imdbId: "tt15239678" });

    const again = await json(await h.req(`/sites/${siteId}/releases/${relId}?refresh=true`));
    expect(again.body.data.page.imdbId).toBe("tt15239678");
    expect(detailRequests()).toBe(before + 1);

    // 列表快照覆盖 raw._site 后,详情给出的外部 ID 仍在
    await snapshotSite(h.rt, { siteId, kind: "manual" });
    const row2 = await h.db
      .selectFrom("source_release")
      .select(["raw"])
      .where("id", "=", relId)
      .executeTakeFirstOrThrow();
    expect((row2.raw as { _detail?: unknown })._detail).toEqual({ imdbId: "tt15239678" });
  });

  it("截图代理:只取缓存里的第 index 张,按文件头认图片;越界 404", async () => {
    const res = await h.req(`/img/site-detail/${relId}/0`);
    expect(res.status).toBe(200);
    expect(res.headers.get("content-type")).toBe("image/png");
    expect(new Uint8Array(await res.arrayBuffer())).toEqual(PNG);
    expect(imageFetches).toEqual([SHOT]);
    expect((await h.req(`/img/site-detail/${relId}/5`)).status).toBe(404);
    expect((await h.req(`/img/site-detail/not-an-id/0`)).status).toBe(400);
  });

  it("缓存丢了(kv_cache 过期)再刷新会重新抓一次", async () => {
    await sharedCache(h.ctx).delete(DETAIL_PAGE_REGION, relId);
    const before = detailRequests();
    const d = await json(await h.req(`/sites/${siteId}/releases/${relId}`));
    expect(d.body.data.page).toBeNull();
    await h.req(`/sites/${siteId}/releases/${relId}?refresh=true`);
    expect(detailRequests()).toBe(before + 1);
  });

  it("身份解析:详情页的 IMDb ID 走 TMDB find,不按标题搜索,显式 ID 证据", async () => {
    const searches = () => tmdb.callsTo(/\/3\/search\//).length;
    const s0 = searches();
    const res = await resolveRelease(h.rt, { sourceReleaseId: relId, force: true, trigger: "manual" });
    expect(tmdb.callsTo(/\/3\/find\/tt15239678/).length).toBeGreaterThan(0);
    expect(searches()).toBe(s0);
    expect(res.outcome).toBe("auto");
    const ev = await h.db
      .selectFrom("source_release")
      .select(["resolution_evidence", "media_entity_id"])
      .where("id", "=", relId)
      .executeTakeFirstOrThrow();
    expect(ev.media_entity_id).toBe(res.mediaEntityId);
    const ext = await h.db
      .selectFrom("external_identity")
      .select(["provider", "external_id"])
      .where("media_entity_id", "=", res.mediaEntityId!)
      .where("provider", "=", "tmdb")
      .executeTakeFirstOrThrow();
    expect(ext.external_id).toBe("693134");
  });
});