// @vitest-environment jsdom
//
// A Plex title's ONE action list. The poster's right-click and its "…" open the same menu,
// which holds what the card no longer shows (details, copy, the pin) beside the everyday toggles;
// the card's hover "add" and the menu's "Add to playlist" open the same dialog.
import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
import { cleanup, fireEvent, render, screen } from "@testing-library/react";
import { FloatingTree } from "@floating-ui/react";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";

import { api, HttpError, type PlexCard, type PlexCollection } from "../lib/api";
import { qk } from "../lib/queryKeys";

vi.mock("react-i18next", async (importOriginal) => {
  const actual = await importOriginal<typeof import("react-i18next")>();
  return {
    ...actual,
    useTranslation: () => ({ t: (key: string) => key, i18n: { language: "en" } }),
  };
});
vi.mock("../lib/api", async (importOriginal) => {
  const actual = await importOriginal<typeof import("../lib/api")>();
  return {
    ...actual,
    api: {
      ...actual.api,
      comfortPins: () => Promise.resolve({ items: [] }),
      plexPlaylists: () => Promise.resolve({ playlists: [] }),
    },
  };
});
const copyText = vi.fn((_: string) => Promise.resolve(true));
vi.mock("../lib/clipboard", () => ({ copyText: (s: string) => copyText(s) }));

import { PlexMenu } from "./PlexMenu";
import { PlexPosterCard } from "./plexCards";
import { useContextMenu } from "./ui/useContextMenu";
import { usePlexCardActions, type PlexActionHandlers } from "./usePlexCardActions";

beforeAll(() => {
  class Stub {
    observe() {}
    unobserve() {}
    disconnect() {}
    takeRecords() {
      return [];
    }
  }
  globalThis.ResizeObserver ??= Stub as unknown as typeof ResizeObserver;
  globalThis.IntersectionObserver ??= Stub as unknown as typeof IntersectionObserver;
});
afterEach(() => {
  cleanup();
  vi.clearAllMocks();
});

// The surface is visibility:hidden in jsdom (floating-ui never positions): matched on text.
const labels = () => screen.queryAllByRole("menuitem", { hidden: true }).map((b) => b.textContent);
const item = (label: string) => {
  const found = screen
    .queryAllByRole("menuitem", { hidden: true })
    .find((b) => b.textContent === label);
  if (!found) throw new Error(`no menuitem "${label}" in [${labels().join(", ")}]`);
  return found;
};

const card = (extra: Partial<PlexCard>): PlexCard => ({
  id: "m1",
  type: "movie",
  title: "A film",
  thumb: "",
  status: "new",
  ...extra,
});

function Grid({
  c,
  handlers,
  pin,
  extra,
}: {
  c: PlexCard;
  handlers: PlexActionHandlers;
  pin?: boolean;
  extra?: Parameters<typeof PlexMenu>[0]["extra"];
}) {
  const menu = useContextMenu<PlexCard>();
  const actions = usePlexCardActions(handlers, menu.open);
  return (
    <>
      <PlexPosterCard
        card={c}
        onOpen={() => handlers.onOpen(c)}
        onToggleWatched={handlers.onToggleWatched}
        onAdd={actions.add}
        menuProps={menu.triggerProps}
        menuButtonProps={menu.buttonProps}
        menuOpen={menu.open && menu.target === c}
      />
      <PlexMenu menu={menu} actions={actions} pin={pin} extra={extra} />
    </>
  );
}

function setup(
  c: PlexCard,
  opts: Omit<Parameters<typeof Grid>[0], "c" | "handlers"> = {},
  { admin = false }: { admin?: boolean } = {},
) {
  const handlers = {
    onOpen: vi.fn(),
    onInfo: vi.fn(),
    onToggleWatched: vi.fn(),
    onRestart: vi.fn(),
  };
  const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  if (admin) qc.setQueryData(qk.me(), { role: "admin" });
  render(
    <QueryClientProvider client={qc}>
      <FloatingTree>
        <Grid c={c} handlers={handlers} {...opts} />
      </FloatingTree>
    </QueryClientProvider>,
  );
  return { handlers, qc };
}
// The card root holds the menu's trigger props (right-click anywhere on it).
const rightClick = () =>
  fireEvent.contextMenu(screen.getByText("A film", { selector: ".line-clamp-2" }));
const moreButtons = () => screen.getAllByRole("button", { name: "card.menu.more" });

describe("a Plex title's menu", () => {
  it("lists a movie's whole action list, in its groups", () => {
    setup(card({}));
    rightClick();
    expect(labels()).toEqual([
      "plex.play",
      "plex.markWatched",
      "plex.playlistAdd.manage",
      "plex.info.title",
      "common.copy.title",
      "home.pin.add",
    ]);
  });

  // C5: on touch the card's hover pair is gone, so the menu is where a started title starts over.
  it("a started title continues from its Play row and starts over from the next one", async () => {
    const { handlers } = setup(card({ status: "in_progress", position_seconds: 600 }));
    rightClick();
    expect(labels().slice(0, 2)).toEqual(["card.continue", "card.restartTitle"]);
    fireEvent.click(item("card.restartTitle"));
    // A row acts a task after the menu closes (closeThenAct).
    await vi.waitFor(() =>
      expect(handlers.onRestart).toHaveBeenCalledWith(expect.objectContaining({ id: "m1" })),
    );
  });

  it("a watched title has no restart row: it plays from the start anyway", () => {
    setup(card({ status: "watched", position_seconds: 600 }));
    rightClick();
    expect(labels()).not.toContain("card.restartTitle");
  });

  // A show plays like any title (the surface resolves the episode); its page is a row of its own.
  // The watched toggle and the add belong to an episode, so a show has none.
  it("a show plays, opens its page from a row of its own, and has no watched or add rows", async () => {
    const { handlers } = setup(card({ type: "show" }));
    rightClick();
    expect(labels()).toEqual(["plex.play", "plex.openShow", "common.copy.title", "home.pin.add"]);
    fireEvent.click(item("plex.play"));
    await vi.waitFor(() =>
      expect(handlers.onOpen).toHaveBeenCalledWith(expect.objectContaining({ type: "show" })),
    );
    rightClick();
    fireEvent.click(item("plex.openShow"));
    await vi.waitFor(() =>
      expect(handlers.onInfo).toHaveBeenCalledWith(expect.objectContaining({ type: "show" })),
    );
  });

  it("a started show continues, and starts its episode over from the next row", () => {
    setup(card({ type: "show", status: "in_progress" }));
    rightClick();
    expect(labels().slice(0, 2)).toEqual(["card.continue", "card.restartTitle"]);
  });

  it("the card's '…' opens the same menu, and says so", () => {
    setup(card({}));
    const hoverMore = moreButtons()[0]!;
    expect(hoverMore.getAttribute("aria-expanded")).toBe("false");
    fireEvent.click(hoverMore);
    expect(labels()).toContain("plex.info.title");
    expect(moreButtons()[0]!.getAttribute("aria-expanded")).toBe("true");
  });

  it("each row fires the handler the card's own controls do", async () => {
    const { handlers } = setup(card({ status: "watched" }));
    rightClick();
    fireEvent.click(item("plex.markUnwatched"));
    // A row acts a task after the menu closes (closeThenAct), so the assertions wait for it.
    await vi.waitFor(() =>
      expect(handlers.onToggleWatched).toHaveBeenCalledWith(expect.objectContaining({ id: "m1" })),
    );
    rightClick();
    fireEvent.click(item("plex.info.title"));
    await vi.waitFor(() =>
      expect(handlers.onInfo).toHaveBeenCalledWith(expect.objectContaining({ id: "m1" })),
    );
    rightClick();
    fireEvent.click(item("plex.play"));
    await vi.waitFor(() =>
      expect(handlers.onOpen).toHaveBeenCalledWith(expect.objectContaining({ id: "m1" })),
    );
  });

  it("copies the title inside the click", () => {
    setup(card({}));
    rightClick();
    fireEvent.click(item("common.copy.title"));
    expect(copyText).toHaveBeenCalledWith("A film");
  });

  it("the hover 'add' and the menu row open the same playlist dialog", async () => {
    setup(card({}));
    fireEvent.click(screen.getByRole("button", { name: "plex.playlistAdd.manage" }));
    expect(await screen.findByText("plex.playlistAdd.title")).toBeTruthy();
    cleanup();
    setup(card({}));
    rightClick();
    fireEvent.click(item("plex.playlistAdd.manage"));
    expect(await screen.findByText("plex.playlistAdd.title")).toBeTruthy();
  });

  it("an episode list carries no pin, and a host's own rows come last", async () => {
    const remove = vi.fn();
    setup(card({ type: "episode" }), {
      pin: false,
      extra: (c) => [{ id: "x", label: "remove", danger: true, onSelect: () => remove(c.id) }],
    });
    rightClick();
    expect(labels()).not.toContain("home.pin.add");
    // The row names what it adds, as the episode card's own hover button does.
    expect(labels()).toContain("plex.playlist.addEpisode");
    expect(screen.getByRole("button", { name: "plex.playlist.addEpisode" })).toBeTruthy();
    expect(labels()[labels().length - 1]).toBe("remove");
    fireEvent.click(item("remove"));
    await vi.waitFor(() => expect(remove).toHaveBeenCalledWith("m1"));
  });
});

// Adding a title to a collection was a trip to the Collections page, a new collection, its name and a
// search for the title. From the card's menu it is a tick, or a name and Enter.
describe("a Plex title's menu — Add to collection", () => {
  const coll = (id: string, title: string, contains: boolean) =>
    ({ id, title, contains }) as PlexCollection & { contains: boolean };

  it("an admin gets the row on a movie and a show; an episode and a viewer do not", () => {
    setup(card({}), {}, { admin: true });
    rightClick();
    expect(labels()).toContain("plex.collectionAdd.row");
    cleanup();
    setup(card({ type: "show" }), {}, { admin: true });
    rightClick();
    expect(labels()).toContain("plex.collectionAdd.row");
    cleanup();
    setup(card({ type: "episode" }), {}, { admin: true });
    rightClick();
    expect(labels()).not.toContain("plex.collectionAdd.row");
    cleanup();
    setup(card({}));
    rightClick();
    expect(labels()).not.toContain("plex.collectionAdd.row");
  });

  it("ticks the title into a collection, out of one, and names a new one with it inside", async () => {
    vi.spyOn(api, "plexCollectionsFor").mockResolvedValue({
      collections: [coll("cA", "Alpha", true), coll("cB", "Beta", false)],
    });
    const add = vi.spyOn(api, "plexCollectionAddItem").mockResolvedValue({} as PlexCollection);
    const remove = vi
      .spyOn(api, "plexCollectionRemoveItem")
      .mockResolvedValue({} as PlexCollection);
    const create = vi.spyOn(api, "plexCreateCollection").mockResolvedValue({} as PlexCollection);
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    const row = async (name: string) =>
      vi.waitFor(() => {
        const found = screen
          .queryAllByRole("menuitemcheckbox", { hidden: true })
          .find((b) => b.textContent === name);
        expect(found).toBeDefined();
        return found!;
      });
    fireEvent.click(await row("Beta"));
    await vi.waitFor(() => expect(add).toHaveBeenCalledWith("cB", "m1"));
    // One write at a time: the next tick waits for this one to settle.
    await vi.waitFor(() =>
      expect(document.querySelector("[aria-busy]")?.getAttribute("aria-busy")).toBe("false"),
    );
    fireEvent.click(await row("Alpha"));
    await vi.waitFor(() => expect(remove).toHaveBeenCalledWith("cA", "m1"));
    const name = screen.getByLabelText("plex.collection.namePlaceholder");
    fireEvent.change(name, { target: { value: "  Rainy days " } });
    fireEvent.keyDown(name, { key: "Enter" });
    await vi.waitFor(() => expect(create).toHaveBeenCalledWith("", "Rainy days", "m1"));
  });

  const checkRow = async (name: string) =>
    vi.waitFor(() => {
      const found = screen
        .queryAllByRole("menuitemcheckbox", { hidden: true })
        .find((b) => b.textContent === name);
      expect(found).toBeDefined();
      return found!;
    });
  const idle = () =>
    vi.waitFor(() =>
      expect(document.querySelector("[aria-busy]")?.getAttribute("aria-busy")).toBe("false"),
    );

  it("flips the tick as soon as a write lands, so the next tap undoes it before the list refetches", async () => {
    const list = vi.spyOn(api, "plexCollectionsFor");
    list.mockResolvedValueOnce({ collections: [coll("cB", "Beta", false)] });
    // The refetch after the write never answers: the tick must not wait for it.
    list.mockImplementation(() => new Promise(() => {}));
    const add = vi.spyOn(api, "plexCollectionAddItem").mockResolvedValue({} as PlexCollection);
    const remove = vi
      .spyOn(api, "plexCollectionRemoveItem")
      .mockResolvedValue({} as PlexCollection);
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    fireEvent.click(await checkRow("Beta"));
    await vi.waitFor(() => expect(add).toHaveBeenCalledWith("cB", "m1"));
    await idle();
    expect((await checkRow("Beta")).getAttribute("aria-checked")).toBe("true");
    fireEvent.click(await checkRow("Beta"));
    await vi.waitFor(() => expect(remove).toHaveBeenCalledWith("cB", "m1"));
    expect(add).toHaveBeenCalledTimes(1);
  });

  it("refreshes a show's own page too, whose collections come with the show", async () => {
    vi.spyOn(api, "plexCollectionsFor").mockResolvedValue({
      collections: [coll("cB", "Beta", false)],
    });
    vi.spyOn(api, "plexCollectionAddItem").mockResolvedValue({} as PlexCollection);
    const { qc } = setup(card({ type: "show" }), {}, { admin: true });
    const invalidate = vi.spyOn(qc, "invalidateQueries");
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    fireEvent.click(await checkRow("Beta"));
    await idle();
    expect(invalidate).toHaveBeenCalledWith({ queryKey: qk.plexShow("m1") });
  });

  it("is a named menu that says it is loading, not that there are no collections", async () => {
    vi.spyOn(api, "plexCollectionsFor").mockImplementation(() => new Promise(() => {}));
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    // jsdom computes no name for the unpositioned (visibility: hidden) surface: read what names it.
    const menu = await vi.waitFor(() => {
      const found = document.querySelector('[role="menu"][aria-label="plex.collectionAdd.title"]');
      expect(found).not.toBeNull();
      return found!;
    });
    expect(menu.hasAttribute("aria-labelledby")).toBe(false);
    expect(screen.getByText("common.loading")).toBeTruthy();
    expect(screen.queryByText("plex.collectionAdd.none")).toBeNull();
  });

  it("says a failed load as one, with a retry — not as no collections", async () => {
    const list = vi.spyOn(api, "plexCollectionsFor").mockRejectedValue(new Error("down"));
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    const alert = await screen.findByRole("alert", { hidden: true });
    expect(alert.textContent).toContain("plex.collectionAdd.loadFailed");
    expect(screen.queryByText("plex.collectionAdd.none")).toBeNull();
    // A menu owns its items only: the line about the list sits beside it, not in it.
    expect(document.querySelector("[role=menu]")).not.toBeNull();
    expect(alert.closest("[role=menu]")).toBeNull();
    list.mockResolvedValue({
      collections: [coll("cB", "Beta", false), coll("cC", "Gamma", false)],
    });
    // Retry from the keyboard: the focused button goes as the list loads, and focus must not be left
    // on <body> with the menu open — it lands on the first row that came back.
    const retry = (await screen.findByText("common.retry")).closest("button")!;
    retry.focus();
    fireEvent.click(retry);
    const beta = await checkRow("Beta");
    await vi.waitFor(() => expect(document.activeElement).toBe(beta));
    // …and the menu's own arrows carry on from there.
    fireEvent.keyDown(beta, { key: "ArrowDown" });
    expect(document.activeElement).toBe(await checkRow("Gamma"));
  });

  it("clears the name when Plex made the collection and only the read after it failed", async () => {
    vi.spyOn(api, "plexCollectionsFor").mockResolvedValue({ collections: [] });
    const create = vi
      .spyOn(api, "plexCreateCollection")
      .mockRejectedValue(
        new HttpError(422, "pending", { code: "refused", reason: "collection_pending_sync" }),
      );
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    const name = await screen.findByLabelText<HTMLInputElement>("plex.collection.namePlaceholder");
    fireEvent.change(name, { target: { value: "Noir" } });
    fireEvent.keyDown(name, { key: "Enter" });
    await vi.waitFor(() => expect(create).toHaveBeenCalledTimes(1));
    // It exists now: a second Enter on the kept name could only be refused as taken.
    await vi.waitFor(() => expect(name.value).toBe(""));
  });

  it("steps from the name field into the rows with the arrows — rows that arrived after it opened", async () => {
    let answer: (v: { collections: (PlexCollection & { contains: boolean })[] }) => void = () => {};
    vi.spyOn(api, "plexCollectionsFor").mockImplementation(
      () => new Promise((resolve) => (answer = resolve)),
    );
    setup(card({}), {}, { admin: true });
    rightClick();
    fireEvent.click(item("plex.collectionAdd.row"));
    const name = await screen.findByLabelText("plex.collection.namePlaceholder");
    name.focus();
    answer({ collections: [coll("cA", "Alpha", true), coll("cB", "Beta", false)] });
    const alpha = await checkRow("Alpha");
    fireEvent.keyDown(name, { key: "ArrowDown" });
    expect(document.activeElement).toBe(alpha);
    name.focus();
    fireEvent.keyDown(name, { key: "ArrowUp" });
    expect(document.activeElement).toBe(await checkRow("Beta"));
  });
});