import test from "node:test";
import assert from "node:assert/strict";
import { canonicalizePageURLs, ROUTE_MIGRATIONS, toLegacyPath, toPublicPath, toPublicURL } from "../src/lib/routes";
import { createContext } from "../src/server/context";
import { canonicalRedirect } from "../src/server/redirects";
import { matchPageRoute } from "../src/server/pages";
import { pageRoutes, publicPageRoutes } from "../src/server/pages/routes";
import { preparePage } from "../src/server/react/page-data";
import { trackerPage } from "../src/server/services/shared";

test("Huakui route prefixes preserve encoded slugs, raw queries and fragments", () => {
  const suffix = "/%E7%9F%AD%E5%89%A7%2F%E9%9B%86%252F1/?x=a+b&x=%2b&token=a%2FB#episode%202";
  assert.equal(toPublicPath("/play" + suffix), "/drama" + suffix);
  assert.equal(toLegacyPath("/drama" + suffix), "/play" + suffix);
  assert.equal(toLegacyPath("/series/watch/video/recommendations/page/2/"), "/series-play/video/recommendations/page/2/");
  for (const path of ["/account/settings/", "/settings/", "/profile/", "/account/login/"]) {
    assert.equal(toPublicPath(path), path, "removed account path is not migrated " + path);
    assert.equal(toLegacyPath(path), path, "removed account path is not migrated " + path);
  }
  assert.equal(toPublicPath("/dh/"), "/navigation/");
  assert.equal(toPublicPath("/home-road/"), "/return-home/");
  assert.equal(toLegacyPath("/return-home/"), "/home-road/");
  for (const path of ["/", "/series/anime/all/1/", "/search/word/", "/listings/", "/api/playlet/list", "/h5/m3u8/signed", "/static/images/play/foo.svg", "//external.example/play/a/"]) {
    assert.equal(toPublicPath(path), path, path);
  }
  for (const { legacy, public: current } of ROUTE_MIGRATIONS) {
    assert.equal(toPublicPath(legacy + "/"), current + "/");
    assert.equal(toPublicPath(current + "/"), current + "/", "idempotent " + current);
  }
});

test("all registered HTML routes resolve under new public URLs with identical parameters", () => {
  const values: Record<string, string> = { q: "短剧/a", theme: "romance", slug: "剧名/a", configId: "recommend", media: "anime", topic: "12", updateStatus: "2", sortType: "3", sortOrder: "2", rankType: "3", timeRange: "1", page: "2", guessPage: "2", ep: "100", filter: "chapter" };
  assert.equal(pageRoutes.length, 59);
  assert.equal(publicPageRoutes.length, pageRoutes.length);
  for (const [pattern, handler] of pageRoutes) {
    const params: Record<string, string> = {};
    const legacy = pattern.replace(/:(\w+)/g, (_, key: string) => {
      params[key] = values[key];
      return encodeURIComponent(values[key]);
    });
    const current = toPublicPath(legacy);
    assert.deepEqual(matchPageRoute(current), { handler, params }, pattern);
    assert.deepEqual(matchPageRoute(legacy), { handler, params }, "legacy " + pattern);
    for (const method of ["GET", "HEAD"]) {
      assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example" + current, { method }))), null, "canonical " + current);
      const response = canonicalRedirect(createContext(new Request("https://huakui.example" + legacy, { method })));
      if (current === legacy) assert.equal(response, null, "unchanged " + legacy);
      else {
        assert.equal(response?.status, 301, "legacy " + legacy);
        assert.equal(response?.headers.get("Location"), current, "single-hop " + legacy);
      }
    }
  }
  for (const path of ["/dramas//", "/dramas/theme/extra/", "/series/watch/", "/account/unknown/", "/account/", "/account/settings/", "/account/favorites/chapter/", "/profile/", "/login/", "/collection/a/page/2/extra/", "/curated/dramas/", "/discover/search/extra/", "/return-home//", "/return-home/extra/", "/home-road/extra/"]) {
    assert.equal(matchPageRoute(path), null, path);
  }
});

test("legacy pages redirect once with 301 to new canonical path and keep request suffix bytes", () => {
  const saved = process.env.NAVIGATION_ONLY;
  process.env.NAVIGATION_ONLY = "false";
  try {
    const suffix = "?x=a+b&x=%2b&return=%2Fplay%2Fa%2F#part%202";
    for (const [legacy, current] of [["/play/a%2Fb", "/drama/a%2Fb/"], ["/list/romance/2/1/page/2/", "/dramas/romance/2/1/page/2/"], ["/dh", "/navigation/"], ["/home-road", "/return-home/"], ["/home-road/", "/return-home/"]]) {
      for (const method of ["GET", "HEAD"]) {
        const response = canonicalRedirect(createContext(new Request("https://huakui.example" + legacy + suffix, { method })));
        assert.equal(response?.status, 301, legacy);
        assert.equal(response?.headers.get("Location"), current + suffix, legacy);
        assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example" + current + suffix, { method }))), null, "single hop " + current);
      }
    }
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/dramas")))?.headers.get("Location"), "/dramas/");
    // Removed account surfaces permanently return home without carrying the query or fragment.
    for (const path of ["/account", "/account/", "/account/login/", "/account/register/", "/account/history/page/2/", "/account/favorites/chapter/page/3/", "/account/purchases/", "/account/recharge/", "/account/settings/", "/login", "/login/", "/register/", "/profile", "/profile/", "/history/page/2/", "/favorites/chapter/", "/purchased/", "/setting/", "/settings", "/settings/", "/recharge/"]) {
      for (const method of ["GET", "HEAD"]) {
        const response = canonicalRedirect(createContext(new Request("https://huakui.example" + path + suffix, { method })));
        assert.equal(response?.status, 301, method + " " + path);
        assert.equal(response?.headers.get("Location"), "/", method + " " + path);
      }
      assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example" + path, { method: "POST" }))), null, "POST " + path);
    }
    for (const path of ["/accounts/", "/account-settings/", "/loginx/", "/history-of-drama/", "/settingsx"]) {
      assert.notEqual(canonicalRedirect(createContext(new Request("https://huakui.example" + path)))?.headers.get("Location"), "/", "segment boundary " + path);
    }
    for (const path of ["/list//", "/list/theme/extra/", "/static/css/list.css", "/h5/m3u8/signed?sign=%2B", "/api/feedback/add", "/api/playlet/collect/set/"]) {
      assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example" + path))), null, path);
    }
    for (const path of ["/play/a", "/drama/a", "/profile", "/account", "/home-road/", "/return-home/"]) {
      assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example" + path, { method: "POST" }))), null, path);
    }
    const post = canonicalRedirect(createContext(new Request("https://huakui.example/api/feedback/add/?sign=%2B", { method: "POST" })));
    assert.equal(post?.status, 307);
    assert.equal(post?.headers.get("Location"), "/api/feedback/add?sign=%2B");
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/api/playlet/collect/set/?sign=%2B", { method: "POST" }))), null);
  } finally {
    if (saved === undefined) delete process.env.NAVIGATION_ONLY;
    else process.env.NAVIGATION_ONLY = saved;
  }
});

test("DTO link canonicalization leaves external, media, SDK, payment and SEO inputs intact", () => {
  const external = "https://cdn.example/play/signed.m3u8?sign=%2B";
  const data = {
    requestPath: "/play/a/1/", canonicalPath: "/play/a/",
    works: [{ URL: "/play/a%2Fb/", url: "https://huakui.example/topic-detail/a/?q=%2b" }],
    pagination: { PrevURL: "/list/", nextURL: "/list/romance/1/1/page/2/" },
    categoryList: [{ urlValue: "/rank/" }, { urlValue: "https://external.example/list/" }],
    chapter: { url: "/play/signed-media.m3u8?sign=%2B" },
    video: { video: { url: "/play/signed-video.m3u8?sign=%2B" } },
    advitise: { url: "https://huakui.example/play/ad/" },
    config: { url: "/play/config/" },
    mainURL: external, previewURL: "/play/signed-preview.m3u8?sign=%2B",
    payment: { url: "/play/payment/" },
    canonicalURL: "https://huakui.example/play/a/",
    seoInfo: { canonicalUrl: "https://huakui.example/play/a/" },
    jsonLD: '{"url":"https://huakui.example/play/a/"}',
  };
  assert.equal(canonicalizePageURLs(data, "https://huakui.example"), data);
  assert.equal(data.requestPath, "/drama/a/1/");
  assert.equal(data.canonicalPath, "/drama/a/");
  assert.equal(data.works[0].URL, "/drama/a%2Fb/");
  assert.equal(data.works[0].url, "https://huakui.example/collection/a/?q=%2b");
  assert.equal(data.pagination.PrevURL, "/dramas/");
  assert.equal(data.pagination.nextURL, "/dramas/romance/1/1/page/2/");
  assert.equal(data.categoryList[0].urlValue, "/rankings/");
  assert.equal(data.categoryList[1].urlValue, "https://external.example/list/");
  assert.equal(data.chapter.url, "/play/signed-media.m3u8?sign=%2B");
  assert.equal(data.video.video.url, "/play/signed-video.m3u8?sign=%2B");
  assert.equal(data.advitise.url, "https://huakui.example/play/ad/");
  assert.equal(data.config.url, "/play/config/");
  assert.equal(data.mainURL, external);
  assert.equal(data.previewURL, "/play/signed-preview.m3u8?sign=%2B");
  assert.equal(data.payment.url, "/play/payment/");
  assert.equal(data.canonicalURL, "https://huakui.example/play/a/");
  assert.equal(data.seoInfo.canonicalUrl, "https://huakui.example/play/a/");
  assert.equal(data.jsonLD, '{"url":"https://huakui.example/play/a/"}');
  assert.equal(toPublicURL("https://huakui.example/play/a%2Fb/?sign=a+b#e", "https://huakui.example/"), "https://huakui.example/drama/a%2Fb/?sign=a+b#e");
  assert.equal(toPublicURL(external, "https://huakui.example"), external);
});

test("navigation-only mode recognizes the new navigation path without enabling other page redirects", () => {
  const saved = process.env.NAVIGATION_ONLY;
  process.env.NAVIGATION_ONLY = "true";
  try {
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/nav?channel=%2B")))?.headers.get("Location"), "/navigation/?channel=%2B");
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/navigation/"))), null);
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/list/"))), null);
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/home-road/"))), null);
    assert.equal(canonicalRedirect(createContext(new Request("https://huakui.example/account/settings/"))), null);
  } finally {
    if (saved === undefined) delete process.env.NAVIGATION_ONLY;
    else process.env.NAVIGATION_ONLY = saved;
  }
});

test("new content paths reach unchanged upstream loaders and preserve navigation-only isolation", async () => {
  const savedFetch = globalThis.fetch;
  const savedUpstream = process.env.UPSTREAM_API_URL;
  const savedNavigation = process.env.NAVIGATION_ONLY;
  process.env.UPSTREAM_API_URL = "http://huakui-route-loader-test";
  process.env.NAVIGATION_ONLY = "false";
  const calls: URL[] = [];
  globalThis.fetch = async (input) => {
    const url = new URL(String(input));
    calls.push(url);
    let data: Record<string, unknown> = {};
    if (url.pathname === "/api/app/config/info") data = { config: { foreverUrlAddr: "https://huakui.example" } };
    if (url.pathname === "/api/app/theme/list") data = { list: [{ id: 12, name: "爱情", slug: "romance", status: true }] };
    if (url.pathname === "/api/app/playlet/all/list") data = { list: [{ id: 10, playName: "作品", slug: "story" }], totalCount: 100, pageNum: Number(url.searchParams.get("pageNum")), pageSize: 24 };
    return Response.json({ code: 200, data });
  };
  const context = (path: string) => {
    const ctx = createContext(new Request("https://huakui.example" + path, { headers: { cookie: "token=route-test; isRegister=1" } }));
    ctx.user = { userId: 7, nickName: "读者", type: 1, isRegister: true };
    ctx.state.set("auth:fresh", true);
    return ctx;
  };
  try {
    const list = await preparePage(context("/dramas/romance/1/1/page/2/"));
    assert.equal(list.status || 200, 200);
    assert.equal(list.view, "list");
    assert.equal(list.data.themeId, 12);
    assert.equal(list.data.updateStatus, 1);
    assert.equal(list.data.requestPath, "/dramas/romance/1/1/page/2/");
    assert.equal(list.data.canonicalPath, "/dramas/romance/1/1/page/2/");
    assert.equal(list.data.pagination.NextURL || list.data.pagination.nextURL, "/dramas/romance/1/1/page/3/");
    assert.equal(list.data.canonicalURL, "https://huakui.example/dramas/romance/1/1/page/2/");
    assert.match(list.data.robots, /^index,follow/);
    assert.equal(list.data.paginationNextURL, "https://huakui.example/dramas/romance/1/1/page/3/");
    const sorted = await preparePage(context("/dramas/romance/1/2/"));
    assert.equal(sorted.data.robots, "noindex,follow");
    assert.equal(sorted.data.canonicalURL, undefined);
    const upstream = calls.find((url) => url.pathname === "/api/app/playlet/all/list");
    assert.equal(upstream?.searchParams.get("themeSlug"), "romance");
    assert.equal(upstream?.searchParams.get("pageNum"), "2");
    for (const path of ["/account/", "/account/settings/", "/account/favorites/chapter/", "/setting/"])
      assert.equal((await preparePage(context(path))).status, 404, path);
    const homeRoad = await preparePage(context("/return-home/"));
    assert.equal(homeRoad.status || 200, 200);
    assert.equal(homeRoad.view, "homeRoad");
    assert.equal(homeRoad.data.requestPath, "/return-home/");
    assert.equal(homeRoad.data.pageKey, "home_road");
    assert.match(homeRoad.data.metaTitle, /回家的路.*花魁短剧/);
    assert.equal(homeRoad.data.robots, "noindex,follow");
    assert.equal(homeRoad.data.canonicalURL, undefined);
    assert.equal(homeRoad.data.jsonLD, undefined);
    assert.ok(homeRoad.data.faqItems.length > 0);
    assert.equal((await preparePage(context("/navigation/"))).data.homeRoadURL, "/return-home/");
    process.env.NAVIGATION_ONLY = "true";
    const navigation = await preparePage(context("/navigation/"));
    assert.equal(navigation.view, "nav");
    assert.equal(navigation.data.isNavPage, true);
    assert.equal(navigation.data.homeRoadURL, "https://huakui.example/return-home/");
    assert.equal((await preparePage(context("/dramas/"))).status, 404);
    assert.equal((await preparePage(context("/return-home/"))).status, 404);
  } finally {
    globalThis.fetch = savedFetch;
    if (savedUpstream === undefined) delete process.env.UPSTREAM_API_URL;
    else process.env.UPSTREAM_API_URL = savedUpstream;
    if (savedNavigation === undefined) delete process.env.NAVIGATION_ONLY;
    else process.env.NAVIGATION_ONLY = savedNavigation;
  }
});

test("navigation-only home road links use a configured main-site origin, then the saved PDF fallback", async () => {
  const savedFetch = globalThis.fetch;
  const savedUpstream = process.env.UPSTREAM_API_URL;
  const savedNavigation = process.env.NAVIGATION_ONLY;
  process.env.NAVIGATION_ONLY = "true";
  let config: Record<string, string> = {};
  globalThis.fetch = async (input) => {
    const url = new URL(String(input));
    return Response.json({ code: 200, data: url.pathname === "/api/app/config/info" ? { config } : {} });
  };
  const cases: [Record<string, string>, string][] = [
    [{ foreverUrlAddr: "https://main.huakui.test/old/path?ch=main", newUrlAddr: "https://latest.huakui.test/" }, "https://main.huakui.test/return-home/"],
    [{ foreverUrlAddr: "https://example.com/", newUrlAddr: "https://latest.huakui.test/old/path" }, "https://latest.huakui.test/return-home/"],
    [{ foreverUrlAddr: "javascript:invalid", newUrlAddr: "/", pdfAddr: "https://files.huakui.test/access.pdf" }, "https://files.huakui.test/access.pdf"],
    [{}, ""],
  ];
  try {
    for (const [index, [configured, expected]] of cases.entries()) {
      // Isolate public-config caches while testing each configured deployment.
      process.env.UPSTREAM_API_URL = `http://home-road-navigation-test-${index}`;
      config = configured;
      const context = createContext(new Request("https://navigation.huakui.test/navigation/", { headers: { cookie: "token=nav-test; isRegister=1" } }));
      context.user = { userId: 7, type: 1, isRegister: true };
      context.state.set("auth:fresh", true);
      const page = await preparePage(context);
      assert.equal(page.status || 200, 200);
      assert.equal(page.view, "nav");
      assert.equal(page.data.homeRoadURL, expected);
    }
  } finally {
    globalThis.fetch = savedFetch;
    if (savedUpstream === undefined) delete process.env.UPSTREAM_API_URL;
    else process.env.UPSTREAM_API_URL = savedUpstream;
    if (savedNavigation === undefined) delete process.env.NAVIGATION_ONLY;
    else process.env.NAVIGATION_ONLY = savedNavigation;
  }
});


test("semantic page paths retain their original analytics classification", () => {
  const paths: [string, string, string][] = [
    ["/list/romance/", "/dramas/romance/", "list"],
    ["/play/a%2Fb/123/", "/drama/a%2Fb/123/", "play"],
    ["/series-play/film/", "/series/watch/film/", "series_play"],
    ["/series/all/all/1/", "/series/all/all/1/", "series"],
    ["/topic/", "/collections/", "topic"],
    ["/topic-detail/story/", "/collection/story/", "topic_detail"],
    ["/rank/2/", "/rankings/2/", "rank"],
    ["/popular-recommend/", "/featured/", "popular_recommend"],
    ["/recently-added/", "/latest/", "recently_added"],
    ["/more-list/recommend/", "/curated/dramas/recommend/", "more_list"],
    ["/more-series-list/recommend/", "/curated/series/recommend/", "more_series_list"],
    ["/search-mobile/", "/discover/search/", "search"],
    ["/home-road/", "/return-home/", "home_road"],
  ];
  for (const [legacy, current, key] of paths) {
    assert.deepEqual(trackerPage(current), trackerPage(legacy), current);
    assert.equal(trackerPage(current)[0], key, current);
  }
  assert.equal(trackerPage("/unknown/")[0], "internal_other");
});