import { describe, expect, it } from "vitest";
import {
  findOtherVersions,
  type OrganizeInput,
  planOrganize,
  sidecarLanguageSuffix,
  sidecarStem,
} from "../src/index.ts";

const MiB = 1024 ** 2;
const GiB = 1024 ** 3;
const ROOT = "/downloads/tv/The.Last.of.Us.S01.2160p.MAX.WEB-DL.DDP5.1.Atmos.DV.HDR.H.265-FLUX";
const tvInput = (over: Partial<OrganizeInput> = {}): OrganizeInput => ({
  operation: "copy",
  mediaType: "tv",
  sourceRoot: ROOT,
  files: [
    { path: `${ROOT}/The.Last.of.Us.S01E01.2160p.mkv`, size: 5 * GiB, device: 1 },
    { path: `${ROOT}/The.Last.of.Us.S01E02.2160p.mkv`, size: 5 * GiB, device: 1 },
    { path: `${ROOT}/The.Last.of.Us.S01E01.2160p.chs.srt`, size: 50_000, device: 1 },
    { path: `${ROOT}/The.Last.of.Us.S01E01.2160p.eng.default.srt`, size: 50_000, device: 1 },
    { path: `${ROOT}/Sample/the.last.of.us.s01e01.sample.mkv`, size: 80 * MiB, device: 1 },
    { path: `${ROOT}/The.Last.of.Us.S01.nfo`, size: 1000, device: 1 },
    { path: `${ROOT}/poster.jpg`, size: 1000, device: 1 },
  ],
  entity: { title: "最后生还者", year: 2023 },
  target: { seasonDirs: { 1: "/media/tv/最后生还者 (2023)/Season 1" }, device: 2 },
  ...over,
});

describe("planOrganize 整季包", () => {
  it("主视频 + 随行字幕,样例/nfo/图片排除,跨卷标记", () => {
    const plan = planOrganize(tvInput());
    expect(plan.files.map((f) => [f.role, f.dst])).toEqual([
      ["main", "/media/tv/最后生还者 (2023)/Season 1/最后生还者 - S01E01.mkv"],
      ["main", "/media/tv/最后生还者 (2023)/Season 1/最后生还者 - S01E02.mkv"],
      ["sidecar", "/media/tv/最后生还者 (2023)/Season 1/最后生还者 - S01E01.chi.zh-cn.srt"],
      ["sidecar", "/media/tv/最后生还者 (2023)/Season 1/最后生还者 - S01E01.eng.default.srt"],
    ]);
    expect(plan.files[0]).toMatchObject({
      kind: "video",
      crossDevice: true,
      season: 1,
      episodes: { start: 1, end: 1 },
    });
    expect(plan.files[2]).toMatchObject({ kind: "subtitle", mainSrc: `${ROOT}/The.Last.of.Us.S01E01.2160p.mkv` });
    expect(plan.excluded.map((e) => [e.reason, e.kind])).toEqual([
      ["sample", "video"],
      ["not_imported_kind", "nfo"],
      ["not_imported_kind", "other"],
    ]);
    expect(plan.crossDevice).toBe(true);
    expect(plan.requiresApproval).toBe(false);
    expect(plan.preconditions.map((p) => p.kind)).toEqual([
      "free_space",
      "target_absent",
      "source_unchanged",
      "verify_after_copy",
    ]);
    expect(plan.preconditions[0]).toEqual({ kind: "free_space", device: 2, bytes: 10 * GiB + 100_000 });
  });
  it("move 跨卷:不降级,只标记 crossDevice 让执行层 copy→verify→delete", () => {
    const plan = planOrganize(tvInput({ operation: "move", retention: { hnrSatisfied: true } }));
    expect(plan.operation).toBe("move");
    expect(plan.crossDevice).toBe(true);
    expect(plan.preconditions.map((p) => p.kind)).toContain("hnr_satisfied");
    expect(plan.preconditions.map((p) => p.kind)).toContain("verify_after_copy");
    expect(plan.requiresApproval).toBe(false);
  });
  it("move 同卷:无需空间/校验前置", () => {
    const plan = planOrganize(
      tvInput({
        operation: "move",
        retention: { hnrSatisfied: true },
        target: { seasonDirs: { 1: "/m/S1" }, device: 1 },
      }),
    );
    expect(plan.crossDevice).toBe(false);
    expect(plan.preconditions.map((p) => p.kind)).toEqual(["hnr_satisfied", "target_absent", "source_unchanged"]);
  });
  it("H&R 未满足/未知:move 变为冲突,不静默改 copy", () => {
    const no = planOrganize(tvInput({ operation: "move", retention: { hnrSatisfied: false } }));
    expect(no.operation).toBe("move");
    expect(no.conflicts).toContainEqual(expect.objectContaining({ kind: "hnr_unsatisfied", blocking: true }));
    expect(no.requiresApproval).toBe(true);
    const unk = planOrganize(tvInput({ operation: "move" }));
    expect(unk.conflicts.map((c) => c.kind)).toContain("hnr_unknown");
  });
  it("缺集号:特典跳过,普通文件进待识别;季目录缺失", () => {
    const plan = planOrganize(
      tvInput({
        files: [
          { path: `${ROOT}/NCOP01.mkv`, size: GiB },
          { path: `${ROOT}/Random.Clip.mkv`, size: GiB },
          { path: `${ROOT}/The.Last.of.Us.S02E01.mkv`, size: GiB },
        ],
      }),
    );
    expect(plan.excluded.map((e) => e.reason)).toEqual(["special_extra", "no_episode", "no_target_dir"]);
    expect(plan.conflicts).toContainEqual(expect.objectContaining({ kind: "no_main_video", blocking: true }));
  });
  it("综艺按日期命名;单季目录兜底", () => {
    const plan = planOrganize({
      operation: "copy",
      mediaType: "tv",
      sourceRoot: "/dl/奔跑吧 第十二季 1080p WEB-DL-HHWEB",
      files: [
        { path: "/dl/奔跑吧 第十二季 1080p WEB-DL-HHWEB/奔跑吧.2024.05.03.mp4", size: GiB },
        { path: "/dl/奔跑吧 第十二季 1080p WEB-DL-HHWEB/tiny.mp4", size: 10 },
      ],
      entity: { title: "奔跑吧" },
      target: { seasonDirs: { 12: "/media/variety/奔跑吧/Season 12" } },
    });
    expect(plan.files[0]!.dst).toBe("/media/variety/奔跑吧/Season 12/奔跑吧 - 2024-05-03.mp4");
    expect(plan.files[0]!.airDate).toBe("20240503");
    expect(plan.excluded[0]!.reason).toBe("too_small");
    const noSeason = planOrganize({
      operation: "copy",
      mediaType: "tv",
      files: [{ path: "/dl/某综艺.20240503.mp4", size: GiB }],
      entity: { title: "某综艺" },
      target: { seasonDirs: { 1: "/m/S1" } },
    });
    expect(noSeason.files[0]!.dst).toBe("/m/S1/某综艺 - 2024-05-03.mp4");
  });
  it("附加内容目录不入库(M2)", () => {
    const plan = planOrganize({
      operation: "copy",
      mediaType: "movie",
      files: [{ path: "/dl/Oppenheimer.2023.1080p/Featurettes/Making.Of.mkv", size: GiB }],
      entity: { title: "奥本海默", year: 2023 },
      target: { movieDir: "/media/movies/奥本海默 (2023)" },
    });
    expect(plan.excluded[0]!.reason).toBe("extra_content");
  });
});

describe("planOrganize 电影与冲突", () => {
  const MOVIE = "/downloads/movie/Oppenheimer.2023.1080p.BluRay.x264-SPARKS";
  const base = (over: Partial<OrganizeInput> = {}): OrganizeInput => ({
    operation: "copy",
    mediaType: "movie",
    sourceRoot: MOVIE,
    files: [
      { path: `${MOVIE}/Oppenheimer.2023.1080p.BluRay.x264-SPARKS.mkv`, size: 10 * GiB, sha256: "aa" },
      { path: `${MOVIE}/Oppenheimer.2023.1080p.BluRay.x264-SPARKS.cht.srt`, size: 10 },
      { path: `${MOVIE}/Oppenheimer.2023.1080p.BluRay.x264-SPARKS.繁体.srt`, size: 10 },
      { path: `${MOVIE}/other.srt`, size: 10 },
    ],
    entity: { title: "奥本海默", year: 2023 },
    target: { movieDir: "/media/movies/奥本海默 (2023)/" },
    ...over,
  });
  const DST = "/media/movies/奥本海默 (2023)/奥本海默 (2023) - 1080p.mkv";
  it("电影命名、繁体字幕后缀、同名字幕去重、孤儿字幕不搬不删", () => {
    const plan = planOrganize(base());
    expect(plan.files.map((f) => f.dst)).toEqual([
      DST,
      "/media/movies/奥本海默 (2023)/奥本海默 (2023) - 1080p.zh-tw.srt",
      "/media/movies/奥本海默 (2023)/奥本海默 (2023) - 1080p.zh-tw.1.srt",
    ]);
    expect(plan.excluded).toContainEqual(
      expect.objectContaining({ reason: "orphan_sidecar", src: `${MOVIE}/other.srt` }),
    );
    expect(plan.conflicts).toContainEqual(expect.objectContaining({ kind: "orphan_sidecar", blocking: false }));
    expect(plan.crossDevice).toBe(false);
    expect(plan.files[0]!.crossDevice).toBeUndefined();
  });
  it("目标存在:默认 conflict(hold + 需审批)", () => {
    const plan = planOrganize(base({ existingTargets: [{ path: DST, size: 9 * GiB }] }));
    expect(plan.files[0]!.action).toBe("hold");
    expect(plan.files[1]!.action).toBe("hold");
    expect(plan.requiresApproval).toBe(true);
  });
  it("目标存在:skip 策略记录待处理但不阻塞;附属文件随主视频跳过", () => {
    const plan = planOrganize(base({ onExisting: "skip", existingTargets: [{ path: DST, size: 9 * GiB }] }));
    expect(plan.files[0]).toMatchObject({ action: "skip", skipReason: "target_exists" });
    expect(plan.files[1]).toMatchObject({ action: "skip", skipReason: "main_not_transferred" });
    expect(plan.requiresApproval).toBe(false);
    expect(plan.preconditions).toEqual([]);
  });
  it("目标存在且内容相同 → 已在库,不是冲突", () => {
    const plan = planOrganize(base({ existingTargets: [{ path: DST, size: 10 * GiB, sha256: "aa" }] }));
    expect(plan.files[0]).toMatchObject({ action: "skip", skipReason: "already_in_library" });
    expect(plan.conflicts.filter((c) => c.blocking)).toEqual([]);
  });
  it("replace_with_verify:需授权,旧文件先隔离", () => {
    const opts = { onExisting: "replace_with_verify" as const, existingTargets: [{ path: DST, size: 9 * GiB }] };
    const noGrant = planOrganize(base(opts));
    expect(noGrant.files[0]!.action).toBe("replace");
    expect(noGrant.conflicts).toContainEqual(
      expect.objectContaining({ kind: "replace_requires_grant", blocking: true }),
    );
    const granted = planOrganize(base({ ...opts, grants: { replace: true } }));
    expect(granted.requiresApproval).toBe(false);
    expect(granted.preconditions).toContainEqual({ kind: "quarantine_replaced", paths: [DST] });
  });
  it("计划内两个源写同一目标 → duplicate_target", () => {
    const plan = planOrganize(
      base({
        files: [
          { path: `${MOVIE}/Oppenheimer.2023.1080p.BluRay.x264-SPARKS.mkv`, size: 10 * GiB },
          { path: `${MOVIE}/Oppenheimer.2023.1080p.BluRay.x264-SPARKS.v2.mkv`, size: 10 * GiB },
        ],
      }),
    );
    expect(plan.conflicts[0]).toMatchObject({ kind: "duplicate_target", blocking: true, dst: DST });
    expect(plan.files.every((f) => f.action === "hold")).toBe(true);
  });
  it("rename:库内改名,无空间与校验前置;电影缺目标目录 / 命名失败", () => {
    const plan = planOrganize(base({ operation: "rename", files: base().files.slice(0, 1) }));
    expect(plan.preconditions.map((p) => p.kind)).toEqual(["target_absent", "source_unchanged"]);
    const noDir = planOrganize(base({ target: {} }));
    expect(noDir.excluded[0]!.reason).toBe("no_target_dir");
    const noName = planOrganize(base({ entity: { title: "" } }));
    expect(noName.excluded[0]).toMatchObject({ reason: "naming_failed", detail: "title" });
  });
  it("两个同名主视频(不同目录)时字幕只配同目录的", () => {
    const plan = planOrganize(
      base({
        sourceRoot: undefined,
        files: [
          { path: "/a/Movie.2020.mkv", size: GiB },
          { path: "/b/Movie.2020.mkv", size: GiB },
          { path: "/a/Movie.2020.srt", size: 1 },
        ],
      }),
    );
    const sub = plan.files.find((f) => f.kind === "subtitle");
    expect(sub?.mainSrc).toBe("/a/Movie.2020.mkv");
  });
});

describe("附属文件主干名", () => {
  it("逐级剥离语言标签", () => {
    expect(sidecarStem("/x/Show.S01E03.chs.default.srt")).toEqual({ stem: "show.s01e03", tags: ["chs", "default"] });
    expect(sidecarStem("Show.S01E03.mkv.srt").stem).toBe("show.s01e03.mkv");
    expect(sidecarStem("简体.srt")).toEqual({ stem: "简体", tags: [] });
    expect(sidecarLanguageSuffix(["jpn"])).toBe(".ja");
    expect(sidecarLanguageSuffix(["kor", "forced"])).toBe(".ko.forced");
    expect(sidecarLanguageSuffix(["简体", "繁体"])).toBe(".zh-tw");
    expect(sidecarLanguageSuffix([])).toBe("");
  });
});

describe("W4-E4:字幕 .default 与 latest 旧版本判定口径(对照 MP)", () => {
  it("defaultLang 命中的随行字幕加 .default;源自带 .default 保留;不命中不加", () => {
    expect(sidecarLanguageSuffix(["chs"], "zh-cn")).toBe(".chi.zh-cn.default");
    expect(sidecarLanguageSuffix(["cht"], "zh-cn")).toBe(".zh-tw");
    expect(sidecarLanguageSuffix(["eng"], "en")).toBe(".eng.default");
    expect(sidecarLanguageSuffix(["eng", "default"])).toBe(".eng.default");
    expect(sidecarLanguageSuffix([], "zh-cn")).toBe("");
  });

  it("planOrganize 透传 defaultSubtitleLang", () => {
    const plan = planOrganize({
      operation: "copy",
      mediaType: "movie",
      files: [
        { path: "/dl/Movie.2020.1080p.BluRay.x264-GRP.mkv", size: 2e9 },
        { path: "/dl/Movie.2020.1080p.BluRay.x264-GRP.chs.srt", size: 1e4 },
        { path: "/dl/Movie.2020.1080p.BluRay.x264-GRP.eng.srt", size: 1e4 },
      ],
      entity: { title: "Movie", year: 2020 },
      target: { movieDir: "/lib/Movie (2020)" },
      defaultSubtitleLang: "zh-cn",
    });
    const subs = plan.files.filter((f) => f.role === "sidecar").map((f) => f.dst.split("/").pop());
    expect(subs.some((n) => n?.endsWith(".chi.zh-cn.default.srt"))).toBe(true);
    expect(subs.some((n) => n?.endsWith(".eng.srt"))).toBe(true);
  });

  it("findOtherVersions:同季同集同 Part、只看视频扩展名", () => {
    const sib = [
      "/lib/S01/Show - S01E01 - 1080p.mkv",
      "/lib/S01/Show - S01E01 - 2160p.mkv",
      "/lib/S01/Show - S01E01 - 2160p.chi.zh-cn.srt",
      "/lib/S01/Show - S01E01 - 720p.mp4",
      "/lib/S01/Show - S01E02 - 1080p.mkv",
      "/lib/S01/Show - S01E01 - 1080p.nfo",
    ];
    expect(findOtherVersions("/lib/S01/Show - S01E01 - 2160p.mkv", sib).sort()).toEqual([
      "/lib/S01/Show - S01E01 - 1080p.mkv",
      "/lib/S01/Show - S01E01 - 720p.mp4",
    ]);
    expect(findOtherVersions("/lib/S01/Show - S01E01 - 2160p.chi.zh-cn.srt", sib)).toEqual([]);
    const movie = [
      "/lib/M (2020)/M (2020) - 1080p.mkv",
      "/lib/M (2020)/M (2020) - 2160p.mkv",
      "/lib/M (2020)/M (2020) - 1080p.srt",
    ];
    expect(findOtherVersions("/lib/M (2020)/M (2020) - 2160p.mkv", movie)).toEqual([
      "/lib/M (2020)/M (2020) - 1080p.mkv",
    ]);
  });
});