import { createMockEmby, type MockEmby } from "@umt/testkit";
import { afterEach, describe, expect, it } from "vitest";
import {
  createEmbyClient,
  type EmbyConfig,
  identitiesCompatible,
  MediaServerRegistry,
  providerIdentity,
} from "./index.ts";

let mocks: MockEmby[] = [];
afterEach(async () => {
  await Promise.all(mocks.map((m) => m.close()));
  mocks = [];
});

async function setup(flavor: "emby" | "jellyfin" = "emby", extra: Partial<EmbyConfig> = {}) {
  const mock = await createMockEmby({ flavor });
  mocks.push(mock);
  const emby = createEmbyClient({
    instanceId: `${flavor}-1`,
    baseUrl: mock.url,
    apiKey: "test-emby-key",
    flavor,
    retries: 1,
    retryBaseMs: 5,
    timeoutMs: 300,
    ...extra,
  });
  return { mock, emby };
}

describe("EmbyClient 查询", () => {
  it("用户解析:用户名匹配优先,否则回退管理员", async () => {
    const { emby } = await setup();
    const u = await emby.resolveUserId();
    expect(u).toMatchObject({ status: "ok", value: "u-admin" });
    const { emby: e2 } = await setup("emby", { username: "kid" });
    expect(await e2.resolveUserId()).toMatchObject({ status: "ok", value: "u-kid" });
  });

  it("按 TMDB ID 查电影:返回多版本 MediaSources(分辨率/编码/音轨/路径)", async () => {
    const { emby, mock } = await setup();
    const r = await emby.findByProviderId("Tmdb", "872585", "Movie");
    expect(r.status).toBe("present");
    if (r.status !== "present") return;
    const [m] = r.items;
    expect(m).toMatchObject({ itemId: "m1", name: "奥本海默", year: 2023, instanceId: "emby-1" });
    expect(m!.versions.map((v) => [v.video?.height, v.video?.codec, v.video?.videoRange])).toEqual([
      [2160, "hevc", "HDR"],
      [800, "h264", "SDR"],
    ]);
    expect(m!.versions[0]!.audio[0]).toEqual({
      codec: "truehd",
      channels: 8,
      language: "eng",
      title: "TrueHD 7.1",
      isDefault: true,
    });
    expect(m!.versions[0]!.path).toContain("2160p.mkv");
    expect(mock.calls.at(-1)!.path).toBe("/emby/Users/u-admin/Items");
  });

  it("未知字段不补值", async () => {
    const { emby } = await setup();
    const r = await emby.findByProviderId("Tmdb", "842675", "Movie");
    if (r.status !== "present") throw new Error("expected present");
    const v = r.items[0]!.versions[0]!;
    expect(v).toEqual({
      id: "ms-m2",
      path: "/media/movies/流浪地球2 (2023)/流浪地球2.mkv",
      video: { codec: "hevc" },
      audio: [{}],
      subtitles: [],
    });
    expect(r.items[0]!.year).toBeUndefined();
  });

  it("按名称+年份查电影,身份冲突排除", async () => {
    const { emby } = await setup();
    const ok = await emby.getMovies("奥本海默", { year: 2023, identity: { source: "tmdb", id: "872585" } });
    expect(ok.status === "ok" && ok.value.map((i) => i.itemId)).toEqual(["m1"]);
    const conflict = await emby.getMovies("奥本海默", { identity: { source: "tmdb", id: "1" } });
    expect(conflict.status === "ok" && conflict.value).toEqual([]);
    const wrongYear = await emby.getMovies("奥本海默", { year: 2020 });
    expect(wrongYear.status === "ok" && wrongYear.value).toEqual([]);
  });

  it("季集覆盖:Virtual 缺集不计入,多集文件展开", async () => {
    const { emby } = await setup();
    const r = await emby.getTvEpisodes({ title: "熊家餐馆", year: 2022, identity: { source: "tmdb", id: "136315" } });
    expect(r).toMatchObject({
      status: "ok",
      value: { seriesId: "s1", seasons: { 1: [1, 2, 3, 4, 5, 6, 7, 8], 2: [1, 2, 3] } },
    });
    const v = await emby.getTvEpisodes({ itemId: "s2", season: 1 });
    expect(v.status === "ok" && v.value?.seasons).toEqual({ 1: [1, 3, 4] });
    const seasons = await emby.seasons("s1");
    expect(seasons.status === "ok" && seasons.value.map((s) => s.seasonNumber)).toEqual([1, 2]);
  });

  it("缓存的 itemId 失效时按标题重查;确实没有返回 null", async () => {
    const { emby } = await setup();
    const r = await emby.getTvEpisodes({ itemId: "stale-id", title: "熊家餐馆" });
    expect(r.status === "ok" && r.value?.seriesId).toBe("s1");
    const none = await emby.getTvEpisodes({ title: "不存在的剧" });
    expect(none).toMatchObject({ status: "ok", value: null });
    expect(await emby.findByProviderId("Tmdb", "999", "Movie")).toEqual({ status: "not_found" });
  });

  it("Jellyfin:无 /emby 前缀、Authorization 头;忽略 AnyProviderIdEquals 时结果截断 → unknown", async () => {
    const { emby, mock } = await setup("jellyfin", { pageSize: 1 });
    const r = await emby.findByProviderId("Tmdb", "842675", "Movie");
    expect(r).toEqual({ status: "unknown", reason: "truncated" });
    expect(mock.calls.at(-1)!.path).toBe("/Users/u-admin/Items");
    expect(String(mock.calls.at(-1)!.headers.authorization)).toContain('Token="test-emby-key"');
    const { emby: full } = await setup("jellyfin");
    expect((await full.findByProviderId("Tmdb", "842675", "Movie")).status).toBe("present");
  });
});

describe("EmbyClient 失败即 unknown", () => {
  it("凭据错误 → unknown(auth),而不是不存在", async () => {
    const { mock } = await setup();
    const bad = createEmbyClient({ instanceId: "x", baseUrl: mock.url, apiKey: "wrong", retries: 0 });
    expect(await bad.findByProviderId("Tmdb", "872585", "Movie")).toEqual({ status: "unknown", reason: "auth" });
    expect((await bad.getTvEpisodes({ title: "熊家餐馆" })).status).toBe("unknown");
  });

  it("5xx 重试后成功;持续 5xx → unknown(protocol);超时 → unknown(timeout);不可达 → network", async () => {
    const { emby, mock } = await setup();
    await emby.resolveUserId();
    mock.fault("/emby/Users/u-admin/Items", { status: 502 });
    expect((await emby.getMovies("奥本海默")).status).toBe("ok");
    mock.fault("/emby/Users/u-admin/Items", { status: 500, times: 5 });
    expect(await emby.getMovies("奥本海默")).toMatchObject({ status: "unknown", reason: "protocol" });
    mock.clearFaults();
    mock.fault("/emby/Shows/s1/Episodes", { delayMs: 500, times: 5 });
    expect(await emby.episodes("s1")).toMatchObject({ status: "unknown", reason: "timeout" });
    const dead = createEmbyClient({ instanceId: "d", baseUrl: "http://127.0.0.1:1", apiKey: "k", retries: 0 });
    expect(await dead.ping()).toMatchObject({ status: "unknown", reason: "network" });
  });

  it("多实例注册表;身份兼容规则", async () => {
    const a = await setup("emby");
    const b = await setup("jellyfin");
    const reg = new MediaServerRegistry([
      { instanceId: "a", baseUrl: a.mock.url, apiKey: "test-emby-key" },
      { instanceId: "b", baseUrl: b.mock.url, apiKey: "test-emby-key", flavor: "jellyfin" },
    ]);
    const res = await Promise.all(reg.list().map((c) => c.ping()));
    expect(res.map((r) => r.status === "ok" && r.value.version)).toEqual(["4.8.10.0", "10.10.3"]);
    expect(providerIdentity({ Imdb: "tt1", Tmdb: "5" })).toEqual({ source: "tmdb", id: "5" });
    expect(identitiesCompatible({ source: "tmdb", id: "1" }, { source: "imdb", id: "tt1" })).toBe(true);
    expect(identitiesCompatible({ source: "tmdb", id: "1" }, { source: "TMDB", id: "2" })).toBe(false);
    expect(identitiesCompatible(null, { source: "tmdb", id: "2" })).toBe(true);
  });
});