// @vitest-environment jsdom
//
// A failed user action is said once, and a user who is gone is not left listed.
// setRole / suspend / delete had no onError at all — "the global error dialog says it" — but a 404
// (the user was deleted in another tab) gets no dialog, so the click did nothing and the row stayed.
// And the invite approve/deny toasted unconditionally on top of the dialog `req` opens for a 409.
import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { render, cleanup, screen, fireEvent, waitFor } from "@testing-library/react";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";

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/useMe", () => ({
  useMe: () => ({
    id: 1,
    email: "admin@x",
    role: "admin",
    pending_invites: 0,
    pending_activations: 0,
  }),
}));
vi.mock("./confirmContext", () => ({ useConfirm: () => async () => true }));
const { notify } = vi.hoisted(() => ({
  notify: vi.fn((_n: { level: string; message: string }) => 0),
}));
vi.mock("../lib/notifications", async (importOriginal) => ({
  ...(await importOriginal<typeof import("../lib/notifications")>()),
  notify,
}));
vi.mock("../lib/errorDialog", () => ({ reportError: vi.fn() }));

import AdminUsers from "./AdminUsers";
import { api, type AdminUserRow } from "../lib/api";
import { relativeTime } from "../lib/format";
import i18n from "../i18n";

const row = {
  id: 2,
  email: "gone@x",
  role: "user",
  is_suspended: false,
  email_verified: true,
  is_active: true,
} as unknown as AdminUserRow;

function answer(status: number, detail: unknown) {
  return new Response(JSON.stringify({ detail }), {
    status,
    headers: { "content-type": "application/json" },
  });
}

beforeEach(() => {
  notify.mockClear();
  localStorage.clear();
});
afterEach(() => {
  cleanup();
  vi.restoreAllMocks();
});

function mount() {
  const users = vi.spyOn(api, "adminUsers").mockResolvedValue([row] as never);
  render(
    <QueryClientProvider
      client={new QueryClient({ defaultOptions: { queries: { retry: false } } })}
    >
      <AdminUsers />
    </QueryClientProvider>,
  );
  return users;
}

describe("the last sign-in column", () => {
  it("says how long ago each account signed in, and a dash where nothing is recorded", async () => {
    const at = new Date(Date.now() - 3 * 86_400_000).toISOString();
    vi.spyOn(api, "adminUsers").mockResolvedValue([
      { ...row, id: 3, email: "seen@x", last_login_at: at },
      { ...row, id: 4, email: "never@x", last_login_at: null },
    ] as never);
    render(
      <QueryClientProvider
        client={new QueryClient({ defaultOptions: { queries: { retry: false } } })}
      >
        <AdminUsers />
      </QueryClientProvider>,
    );

    expect(await screen.findByText(relativeTime(at, "en", i18n.t))).toBeTruthy();
    expect(screen.getAllByText("—")).toHaveLength(1);
  });
});

// The hover ended wherever the row's first badge or button began, because the layer was
// the name button's own. The card is the row: it paints the layer under its content, and the name
// button's hit layer spans the card, under the actions that sit above it.
describe("a user row", () => {
  it("answers as a whole card, with its actions above the card's hit layer", async () => {
    mount();
    const open = await screen.findByTitle("users.account.open");
    const card = open.parentElement!;
    expect(card.className).toMatch(/(^|\s)isolate(\s|$)/);
    expect(card.className).toMatch(/(^|\s)hover:before:bg-\(--hover\)(\s|$)/);
    expect(open.className).toMatch(/(^|\s)after:inset-0(\s|$)/);
    expect(open.className).not.toMatch(/selectable|hover:/);
    const actions = [...card.querySelectorAll("button")].filter((b) => b !== open);
    expect(actions.length).toBeGreaterThan(0);
    for (const b of actions) expect(b.className).toMatch(/(^|\s)relative(\s|$)/);
  });
});

/** The open menu's rows (a closed popover's are hidden from the accessibility tree in jsdom). */
const menuRows = () => screen.queryAllByRole("menuitem", { hidden: true });

/** The row's actions live in its "…" menu: open it, then pick the row. */
async function chooseInRowMenu(label: string) {
  fireEvent.click(await screen.findByRole("button", { name: "users.rowMenu" }));
  const item = await waitFor(() => {
    const found = menuRows().find((m) => m.textContent?.startsWith(label));
    if (!found) throw new Error(`no menu row "${label}"`);
    return found;
  });
  fireEvent.click(item);
}

// DESIGN § Action placement: the role, the suspension and the delete moved off the row into
// ONE menu — the row's "…", which a right-click on the row opens too. A locked one stays listed with
// its reason.
describe("a user row's menu", () => {
  it("holds the role, the suspension and the delete; the row shows no action button", async () => {
    mount();
    const open = await screen.findByTitle("users.account.open");
    const card = open.parentElement!;
    const buttons = [...card.querySelectorAll("button")].filter((b) => b !== open);
    expect(buttons.map((b) => b.getAttribute("aria-label"))).toEqual(["users.rowMenu"]);
    fireEvent.contextMenu(card, { clientX: 5, clientY: 5 });
    await waitFor(() => expect(menuRows().length).toBe(3));
    expect(menuRows().map((i) => i.textContent)).toEqual([
      "users.roles.makeAdmin",
      "users.suspend.action",
      "users.delete.action",
    ]);
  });

  it("lists your own row's actions as locked, with the reason", async () => {
    vi.spyOn(api, "adminUsers").mockResolvedValue([{ ...row, id: 1, email: "admin@x" }] as never);
    render(
      <QueryClientProvider client={new QueryClient()}>
        <AdminUsers />
      </QueryClientProvider>,
    );
    fireEvent.click(await screen.findByRole("button", { name: "users.rowMenu" }));
    await waitFor(() => expect(menuRows().length).toBe(3));
    const [role, suspend, del] = menuRows();
    expect(role!.hasAttribute("disabled")).toBe(true);
    expect(role!.textContent).toBe("users.roles.makeAdminusers.roles.selfLocked");
    expect(suspend!.textContent).toBe("users.suspend.actionusers.suspend.selfLocked");
    expect(del!.textContent).toBe("users.delete.actionusers.delete.locked");
  });
});

describe("a user action that fails", () => {
  it("says a user who is gone, and refetches the list", async () => {
    const users = mount();
    vi.spyOn(globalThis, "fetch").mockResolvedValue(
      answer(404, { code: "not_found", reason: "user" }),
    );
    await chooseInRowMenu("users.roles.makeAdmin");
    await waitFor(() =>
      expect(notify).toHaveBeenCalledWith({
        level: "error",
        title: "users.roles.failed", // what failed…
        message: i18n.t("errors.notFound.user"), // …and why: the request layer localizes a structured detail
      }),
    );
    await waitFor(() => expect(users).toHaveBeenCalledTimes(2));
  });

  it("is not toasted on top of the error dialog the request already opened", async () => {
    mount();
    vi.spyOn(globalThis, "fetch").mockResolvedValue(answer(409, "Cannot demote the last admin"));
    await chooseInRowMenu("users.roles.makeAdmin");
    const { reportError } = await import("../lib/errorDialog");
    await waitFor(() => expect(reportError).toHaveBeenCalled());
    expect(notify.mock.calls.filter(([n]) => n.level === "error")).toEqual([]);
  });
});