// @vitest-environment jsdom
//
// The download formats (Settings → Downloads, and the download dialog's "Manage formats"): one aligned
// list, built-ins first, each row saying what it saves. A row's one menu: a built-in's only
// Duplicate; the user's own Edit, Duplicate and Delete (behind a confirm). A duplicate is a NEW format
// with the original's settings and a name of its own. i18n is key-passthrough.
import { afterEach, describe, expect, it, vi } from "vitest";
import { act, cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { api, type DownloadProfile } from "../lib/api";

const mocks = vi.hoisted(() => ({ confirm: vi.fn(async (_o?: unknown) => true) }));

vi.mock("react-i18next", async (importOriginal) => ({
  ...(await importOriginal<typeof import("react-i18next")>()),
  useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
}));
vi.mock("./confirmContext", () => ({ useConfirm: () => mocks.confirm }));

import { DownloadFormats } from "./ProfileEditor";

const SPEC = {
  mode: "av",
  max_height: 480,
  container: "mp4",
  audio_format: "m4a",
  vcodec: null,
  embed_subs: true,
  embed_chapters: false,
  embed_thumbnail: false,
  sponsorblock: true,
};
const PROFILES = [
  { id: 9, name: "Phone 480", is_builtin: false, spec: SPEC },
  { id: 1, name: "best", is_builtin: true, spec: { mode: "a", audio_format: "mp3" } },
] as unknown as DownloadProfile[];

afterEach(() => {
  cleanup();
  vi.restoreAllMocks();
  mocks.confirm.mockClear();
});

async function mount() {
  vi.spyOn(api, "downloadProfiles").mockResolvedValue(PROFILES);
  render(
    <QueryClientProvider client={new QueryClient()}>
      <DownloadFormats />
    </QueryClientProvider>,
  );
  await screen.findByText("Phone 480");
}

const rows = () => [...document.querySelectorAll<HTMLElement>("[data-nav-index]")];
const rowOf = (text: string) => screen.getByText(text).closest<HTMLElement>("[data-nav-index]")!;
const menuRows = () =>
  screen.getAllByRole("menuitem", { hidden: true }).map((b) => b.textContent ?? "");
const pick = (label: string) =>
  fireEvent.click(
    screen.getAllByRole("menuitem", { hidden: true }).find((b) => b.textContent === label)!,
  );
async function openMenu(row: HTMLElement) {
  act(() => {
    fireEvent.contextMenu(row);
  });
  await waitFor(() =>
    expect(screen.getAllByRole("menuitem", { hidden: true }).length).toBeGreaterThan(0),
  );
}

describe("DownloadFormats", () => {
  it("lists the built-ins first, each saying what it saves", async () => {
    await mount();
    expect(rows().map((r) => r.textContent)).toEqual([
      expect.stringContaining("downloads.profiles.modeA · MP3"),
      expect.stringContaining(
        "downloads.profiles.modeAv · ≤480p · downloads.profiles.short.subs · downloads.profiles.short.sponsorblock",
      ),
    ]);
  });

  it("a built-in's menu only duplicates; the user's own edits, duplicates and deletes", async () => {
    await mount();
    await openMenu(rows()[0]!);
    expect(menuRows()).toEqual(["downloads.profiles.duplicate"]);
    fireEvent.keyDown(document.activeElement!, { key: "Escape" });
    await openMenu(rowOf("Phone 480"));
    expect(menuRows()).toEqual([
      "downloads.profiles.edit",
      "downloads.profiles.duplicate",
      "downloads.profiles.delete",
    ]);
  });

  it("deletes only through the confirm", async () => {
    const del = vi.spyOn(api, "deleteDownloadProfile").mockResolvedValue({} as never);
    await mount();
    mocks.confirm.mockResolvedValueOnce(false);
    await openMenu(rowOf("Phone 480"));
    pick("downloads.profiles.delete");
    await waitFor(() => expect(mocks.confirm).toHaveBeenCalledTimes(1));
    expect(del).not.toHaveBeenCalled();
    await openMenu(rowOf("Phone 480"));
    pick("downloads.profiles.delete");
    await waitFor(() => expect(del).toHaveBeenCalledWith(9));
  });

  it("a duplicate is a new format with the original's settings and a name of its own", async () => {
    const create = vi.spyOn(api, "createDownloadProfile").mockResolvedValue({} as never);
    const update = vi.spyOn(api, "updateDownloadProfile").mockResolvedValue({} as never);
    await mount();
    await openMenu(rowOf("Phone 480"));
    pick("downloads.profiles.duplicate");
    // The form opens with the keyboard in its name, the field named by its label.
    const name = await screen.findByRole("textbox", { name: "downloads.profiles.name" });
    await waitFor(() => expect(document.activeElement).toBe(name));
    expect((name as HTMLInputElement).value).toBe("");
    fireEvent.change(name, { target: { value: "Phone copy" } });
    fireEvent.click(screen.getByText("downloads.profiles.create"));
    await waitFor(() =>
      expect(create).toHaveBeenCalledWith({
        name: "Phone copy",
        spec: expect.objectContaining({ max_height: 480, embed_subs: true, sponsorblock: true }),
      }),
    );
    expect(update).not.toHaveBeenCalled();
  });

  it("Edit saves over the format itself", async () => {
    const update = vi.spyOn(api, "updateDownloadProfile").mockResolvedValue({} as never);
    await mount();
    await openMenu(rowOf("Phone 480"));
    pick("downloads.profiles.edit");
    const name = await screen.findByDisplayValue("Phone 480");
    fireEvent.change(name, { target: { value: "Phone" } });
    fireEvent.click(screen.getByText("downloads.profiles.save"));
    await waitFor(() =>
      expect(update).toHaveBeenCalledWith(9, expect.objectContaining({ name: "Phone" })),
    );
  });
});