// @vitest-environment jsdom
//
// The palette's DOMAIN half: which rows exist and what they do. The list/filter/keyboard shell
// (`ui/CommandPalette`) has its own tests, so it is stubbed here to hand back the groups it was given —
// what this file pins is the content: modules gated by the account, hidden channels left out, and the
// two `run`s whose ORDER matters.
import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
import { render, cleanup, waitFor } from "@testing-library/react";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";

import type { CommandGroup } from "../components/ui/CommandPalette";

vi.mock("react-i18next", async (importOriginal) => ({
  // The rest of the module too: the recorder's actions reach `i18n/index`, which needs it.
  ...(await importOriginal<typeof import("react-i18next")>()),
  useTranslation: () => ({ t: (k: string) => k, i18n: { language: "en" } }),
}));

let groups: CommandGroup[] = [];
vi.mock("../components/ui/CommandPalette", () => ({
  default: (props: { groups: CommandGroup[] }) => {
    groups = props.groups;
    return null;
  },
}));

const channels = vi.fn();
const playlists = vi.fn();
// Partial: the module registry the palette lists reaches the feed's store, which reads its defaults here.
vi.mock("../lib/api", async (importOriginal) => ({
  ...(await importOriginal<typeof import("../lib/api")>()),
  api: {
    channels: (...a: unknown[]) => channels(...a),
    playlists: (...a: unknown[]) => playlists(...a),
  },
}));

let me: Record<string, unknown> | undefined;
vi.mock("../lib/useMe", () => ({ useMe: () => me }));
vi.mock("../lib/keymap", () => ({
  usePaletteOpen: () => true,
  closePalette: vi.fn(),
  toggleKeyboardHelp: vi.fn(),
  // listNav, loaded under the palette, hands the sheet its list probe as it loads.
  setListInTopLayerProbe: vi.fn(),
}));

// Each module's saved views, and the page the palette opens over.
const views = {
  feed: [] as { id: number; name: string }[],
  plex: [] as { id: number; name: string }[],
};
const nav = { page: "feed" };

const calls: string[] = [];
const setPage = vi.fn((page: string, then?: () => void) => {
  calls.push(`setPage:${page}`);
  then?.();
});
vi.mock("../features/navigation/navigationContext", () => ({
  useNavigation: () => ({ page: nav.page }),
  useNavigationActions: () => ({ setPage, openChannel: vi.fn() }),
}));
vi.mock("../modules/playlists/playlistsContext", () => ({
  usePlaylistsActions: () => ({
    setSelectedId: (id: number) => calls.push(`select:${id}`),
  }),
}));
vi.mock("../features/prefs/prefsContext", () => ({
  usePrefs: () => ({ theme: { scheme: "default" }, setTheme: vi.fn() }),
}));
vi.mock("../modules/feed/feedSavedViews", async (importOriginal) => ({
  ...(await importOriginal<Record<string, unknown>>()),
  useFeedSavedViews: () => ({ views: views.feed, apply: vi.fn() }),
}));
vi.mock("../modules/plex/plexSavedViews", async (importOriginal) => ({
  ...(await importOriginal<Record<string, unknown>>()),
  usePlexSavedViews: () => ({ views: views.plex, apply: vi.fn() }),
}));
const requestSurprise = vi.fn();
vi.mock("../lib/homeIntent", () => ({ requestSurprise: () => requestSurprise() }));
const requestLinkBox = vi.fn();
vi.mock("../lib/downloadIntake", () => ({ requestLinkBox: () => requestLinkBox() }));

import AppCommandPalette from "./AppCommandPalette";

const user = (over: Record<string, unknown> = {}) => ({
  id: 1,
  role: "user",
  plex_enabled: false,
  ...over,
});

function mount() {
  const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  render(
    <QueryClientProvider client={qc}>
      <AppCommandPalette />
    </QueryClientProvider>,
  );
}

const group = (id: string) => groups.find((g) => g.id === id);
const ids = (id: string) => group(id)?.items.map((i) => i.id) ?? [];

beforeEach(() => {
  groups = [];
  calls.length = 0;
  me = user();
  setPage.mockClear();
  requestSurprise.mockClear();
  channels.mockReset().mockResolvedValue([]);
  playlists.mockReset().mockResolvedValue([]);
  views.feed = [];
  views.plex = [];
  nav.page = "feed";
});
afterEach(cleanup);

describe("AppCommandPalette", () => {
  it("offers only the modules this account can open, in nav order, and Settings", () => {
    mount();
    expect(ids("modules")).toContain("page:feed");
    expect(ids("modules")).not.toContain("page:plex");
    expect(ids("modules")).not.toContain("page:config"); // admin-only
    expect(ids("modules").slice(-1)).toEqual(["page:settings"]);

    cleanup();
    me = user({ role: "admin", plex_enabled: true });
    mount();
    expect(ids("modules")).toContain("page:plex");
    expect(ids("modules")).toContain("page:config");
  });

  it("offers Plex's saved views over the Plex page, and the feed's over any other", () => {
    views.feed = [{ id: 1, name: "feed view" }];
    views.plex = [{ id: 2, name: "plex view" }];
    nav.page = "plex";
    mount();
    expect(ids("views")).toEqual(["view:2"]);
    cleanup();
    nav.page = "home";
    mount();
    expect(ids("views")).toEqual(["view:1"]);
  });

  it("leaves out the channels the user has hidden", async () => {
    channels.mockResolvedValue([
      { id: "UC1", title: "Shown", handle: "@shown", hidden: false },
      { id: "UC2", title: "Hidden", handle: "@hidden", hidden: true },
    ]);
    mount();
    await waitFor(() => expect(group("channels")).toBeTruthy());
    expect(ids("channels")).toEqual(["channel:UC1"]);
  });

  it("selects the playlist BEFORE switching to the page, so it opens on that list", async () => {
    playlists.mockResolvedValue([{ id: 7, name: "Later", item_count: 3 }]);
    mount();
    await waitFor(() => expect(group("playlists")).toBeTruthy());
    group("playlists")!.items[0]!.run();
    expect(calls).toEqual(["select:7", "setPage:playlists"]);
  });

  it("asks for the surprise once the navigation to Home has happened, not before", () => {
    mount();
    const surprise = group("actions")!.items.find((i) => i.id === "action:surprise")!;
    // Over an open player the push lands a moment after the call, and the token must name the
    // entry that push makes (lib/homeIntent) — so it rides `setPage`'s `then`, not the next line.
    setPage.mockImplementationOnce((page: string) => void calls.push(`setPage:${page}`));
    surprise.run();
    expect(requestSurprise).not.toHaveBeenCalled();
    const then = setPage.mock.lastCall?.[1];
    expect(setPage.mock.lastCall?.[0]).toBe("home");
    then?.();
    expect(requestSurprise).toHaveBeenCalledTimes(1);
  });

  it("Download from a link takes the reader to the Files link box, asked on that entry", () => {
    mount();
    const item = group("actions")!.items.find((i) => i.id === "action:downloadLink")!;
    setPage.mockImplementationOnce(() => {});
    item.run();
    expect(setPage.mock.lastCall?.[0]).toBe("files");
    expect(requestLinkBox).not.toHaveBeenCalled();
    setPage.mock.lastCall?.[1]?.();
    expect(requestLinkBox).toHaveBeenCalledTimes(1);
  });

  it("offers the debug recorder by its state", () => {
    const recorder = () => ids("actions").filter((id) => id.startsWith("action:recorder:"));
    mount();
    expect(recorder()).toEqual(["action:recorder:start"]);

    cleanup();
    const until = new Date(Date.now() + 60_000).toISOString();
    me = user({ debug_session: { id: "0123456789abcdef", until, ended_at: null } });
    mount();
    expect(recorder()).toEqual(["action:recorder:step", "action:recorder:stop"]);
  });
});