import { readFile, writeFile } from "node:fs/promises";
import type { ScrapeFileResult, ScrapeMatch } from "@umt/contracts";
import { createTempTree, type TempTree } from "@umt/testkit";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { queueScrape, runScrapeRecord } from "../../src/modules/acquisition-organize/services/scrape.ts";
import { createHarness, type Harness, pgAvailable, seedBase } from "./harness.ts";

// TMDB 标志 → clearlogo.png:电影写影片目录、剧集写剧集根目录;覆盖方式与其它图片一致
// (更新:没变不重写、本工具写过且没被改过的按新图覆盖、被人改过的跳过;只补缺失;全部覆盖)。

const hasPg = await pgAvailable();
const at = new Date().toISOString();
const f = (value: unknown) => ({ value, source: "tmdb", language: null, at, locked: false });
const enc = (s: string) => new TextEncoder().encode(s);

describe.skipIf(!hasPg)("刮削:TMDB 标志写 clearlogo.png", () => {
  let h: Harness;
  let lib: TempTree;
  let rootId = "";

  beforeAll(async () => {
    lib = await createTempTree(
      {
        "Movies/星际穿越 (2014)/Interstellar.2014.mkv": 100,
        "TV/人生切割术 (2022)/Season 1/Severance.S01E01.mkv": 100,
      },
      { sentinel: true, prefix: "umt-scrlogo-" },
    );
    h = await createHarness("scrape_logo", {
      // 内容 = 路径,方便看出写的是哪张
      scrapeImage: async (p) => ({ content: enc(p), mime: p.endsWith(".png") ? "image/png" : "image/jpeg" }),
    });
    rootId = (await seedBase(h.db, { libraryPath: lib.root, cachePath: lib.root, qbUrl: "http://127.0.0.1:9" })).rootId;
  }, 60_000);
  afterAll(async () => {
    await h?.close();
    await lib?.cleanup();
  });

  async function entity(kind: "movie" | "series", title: string, meta: object) {
    return (
      await h.db
        .insertInto("media_entity")
        .values({ kind, title, year: 2020, status: "active", metadata: JSON.stringify(meta) })
        .returning("id")
        .executeTakeFirstOrThrow()
    ).id;
  }
  const setMeta = (id: string, meta: object) =>
    h.db
      .updateTable("media_entity")
      .set({ metadata: JSON.stringify(meta) })
      .where("id", "=", id)
      .execute();
  async function scrape(
    entityId: string,
    kind: "movie" | "tv",
    path: string,
    mode?: "missing" | "overwrite" | "update",
  ) {
    const match: ScrapeMatch = {
      mediaEntityId: entityId,
      provider: null,
      externalId: null,
      kind,
      title: "x",
      year: null,
      source: "library",
    };
    const q = await queueScrape(h.d, {
      rootId: `lib:${rootId}`,
      rootPath: lib.root,
      libraryRootId: rootId,
      path,
      match,
      mode,
      trigger: "manual",
    });
    return runScrapeRecord(h.d, q.recordId);
  }
  const logo = (files: ScrapeFileResult[]) => files.find((x) => x.role === "clearlogo");
  const MOVIE_DIR = "Movies/星际穿越 (2014)";
  const LOGO = `${MOVIE_DIR}/clearlogo.png`;

  it("电影:写在影片目录 clearlogo.png;更新模式内容没变不重写,换了标志按新图覆盖", async () => {
    const movie = await entity("movie", "星际穿越", { title: f("星际穿越"), logoPath: f("/logo-a.png") });
    const r = await scrape(movie, "movie", MOVIE_DIR);
    expect(logo(r.files)).toMatchObject({
      path: LOGO,
      action: "written",
      hash: expect.stringMatching(/^[0-9a-f]{64}$/),
    });
    expect(await readFile(lib.path(LOGO), "utf8")).toBe("/logo-a.png");
    const same = await scrape(movie, "movie", MOVIE_DIR, "update");
    expect(logo(same.files)).toMatchObject({ action: "skipped", reason: "scrape_unchanged" });
    await setMeta(movie, { title: f("星际穿越"), logoPath: f("/logo-b.png") });
    const upd = await scrape(movie, "movie", MOVIE_DIR, "update");
    expect(logo(upd.files)).toMatchObject({ action: "written" });
    expect(await readFile(lib.path(LOGO), "utf8")).toBe("/logo-b.png");

    // 被人换掉的标志:更新跳过、只补缺失跳过、全部覆盖改写
    await writeFile(lib.path(LOGO), "我自己的标志");
    await setMeta(movie, { title: f("星际穿越"), logoPath: f("/logo-c.png") });
    expect(logo((await scrape(movie, "movie", MOVIE_DIR, "update")).files)).toMatchObject({
      action: "skipped",
      reason: "scrape_user_modified",
    });
    expect(logo((await scrape(movie, "movie", MOVIE_DIR, "missing")).files)).toMatchObject({
      action: "skipped",
      reason: "scrape_exists",
    });
    expect(await readFile(lib.path(LOGO), "utf8")).toBe("我自己的标志");
    expect(logo((await scrape(movie, "movie", MOVIE_DIR, "overwrite")).files)).toMatchObject({ action: "written" });
    expect(await readFile(lib.path(LOGO), "utf8")).toBe("/logo-c.png");
  });

  it("剧集:写在剧集根目录,季目录不写;没有标志不写", async () => {
    const show = await entity("series", "人生切割术", { title: f("人生切割术"), logoPath: f("/sev.png") });
    const r = await scrape(show, "tv", "TV/人生切割术 (2022)");
    expect(logo(r.files)).toMatchObject({ path: "TV/人生切割术 (2022)/clearlogo.png", action: "written" });
    expect(r.files.filter((x) => x.role === "clearlogo")).toHaveLength(1);
    await setMeta(show, { title: f("人生切割术") });
    const none = await scrape(show, "tv", "TV/人生切割术 (2022)", "overwrite");
    expect(logo(none.files)).toBeUndefined();
  });
});