/**
 * @file Administration.test.tsx
 * @description The Administration page (`/admin`): local mode and a developer
 * are sent home; staff land on the Users tab; the Server tab shows the
 * machine's hardware, every disk, and each user's CPU/memory/home share from
 * `GET /api/host`, with a user's busiest processes on click.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { beforeEach, describe, expect, it, vi } from "vitest";
import { fireEvent, render, screen, within } from "@testing-library/react";
import { MemoryRouter, Route, Routes } from "react-router-dom";
import type { AuthState, HostStats } from "../../lib/api";

let authState: AuthState = { mode: "local" };
vi.mock("../../components/AuthGate", () => ({
  useAuth: () => ({ state: authState, logout: async () => {} }),
}));

const GB = 1024 ** 3;
const stats: HostStats = {
  at: "2026-10-15T00:00:00Z",
  hostname: "box",
  os: { platform: "linux", release: "7.0.0", distro: "Ubuntu 26.04", arch: "x64" },
  uptime: 90000,
  cpu: { model: "i5-7500", cores: 4, load: [1, 0.5, 0.25] },
  memory: { total: 16 * GB, available: 8 * GB, used: 8 * GB, swapTotal: 4 * GB, swapUsed: 0 },
  disks: [
    {
      device: "/dev/sdb2",
      mount: "/",
      type: "ext4",
      kind: "SSD",
      total: 200 * GB,
      used: 50 * GB,
      free: 150 * GB,
    },
    {
      device: "/dev/sda1",
      mount: "/data",
      type: "ext4",
      kind: "HDD",
      total: 500 * GB,
      used: 0,
      free: 500 * GB,
    },
  ],
  homesMount: "/",
  gpus: [],
  usage: {
    cpu: 40,
    sampleMs: 1000,
    groups: [
      {
        key: "user:2",
        kind: "user",
        userId: 2,
        username: "mia",
        cpu: 25,
        memory: 2 * GB,
        memoryPercent: 12.5,
        processes: 3,
        top: [{ pid: 77, name: "claude", cpu: 20, memory: GB }],
      },
      { key: "host", kind: "host", cpu: 5, memory: GB, memoryPercent: 6.3, processes: 90, top: [] },
    ],
  },
};

const api = vi.hoisted(() => ({
  host: { stats: vi.fn() },
  users: {
    list: vi.fn(),
    audit: vi.fn(),
    storage: vi.fn(),
    tmux: vi.fn(async () => ({ available: false, users: [] })),
    avatarUrl: () => null,
  },
}));
vi.mock("../../lib/api", async (importOriginal) => {
  const actual = await importOriginal<Record<string, unknown>>();
  return {
    ...actual,
    api: {
      ...api,
      lanes: { list: vi.fn(async () => ({ lanes: [], counts: {} })) },
      accountPool: { list: vi.fn(async () => ({ accounts: [], codex: [], blockPercent: 90 })) },
    },
  };
});

import { Administration } from "../Administration";

const renderAt = (url: string) =>
  render(
    <MemoryRouter initialEntries={[url]}>
      <Routes>
        <Route path="/admin" element={<Administration />} />
        <Route path="/" element={<div data-testid="home" />} />
      </Routes>
    </MemoryRouter>
  );

beforeEach(() => {
  api.host.stats.mockResolvedValue(stats);
  api.users.list.mockResolvedValue({
    users: [
      {
        id: 1,
        username: "boss",
        role: "admin",
        disabled: false,
        workspaces: 0,
        sessions: 0,
        last7d: { cost: 0, tokens: 0 },
        last30d: { cost: 0, tokens: 0 },
      },
      {
        id: 2,
        username: "mia",
        role: "developer",
        displayName: "Mia",
        disabled: false,
        workspaces: 1,
        sessions: 2,
        last7d: { cost: 0, tokens: 0 },
        last30d: { cost: 0, tokens: 0 },
      },
    ],
  });
  api.users.audit.mockResolvedValue({ entries: [] });
  api.users.storage.mockResolvedValue({
    storage: { 2: { bytes: 20 * GB, files: 10, partial: false, measuredAt: "x" } },
    measuring: false,
  });
});

describe("Administration", () => {
  it("sends local mode and a developer home", async () => {
    authState = { mode: "local" };
    renderAt("/admin");
    expect(await screen.findByTestId("home")).toBeTruthy();
    authState = { mode: "server", user: { id: 2, username: "mia", role: "developer" } };
    renderAt("/admin");
    expect((await screen.findAllByTestId("home")).length).toBeGreaterThan(0);
  });

  it("opens on the Users tab", async () => {
    authState = { mode: "server", user: { id: 1, username: "boss", role: "admin" } };
    renderAt("/admin");
    expect(await screen.findByTestId("users-table")).toBeTruthy();
    expect(screen.getByRole("tab", { name: /users/i }).getAttribute("aria-selected")).toBe("true");
  });

  it("shows hardware and each user's share on the Server tab", async () => {
    authState = { mode: "server", user: { id: 1, username: "boss", role: "admin" } };
    renderAt("/admin?tab=server");
    const table = await screen.findByTestId("server-usage-table");
    expect(await screen.findByText("box")).toBeTruthy();
    expect(screen.getByTestId("server-disks-table").textContent).toContain("HDD");
    const mia = await within(table).findByText("Mia");
    const row = mia.closest("tr")!;
    expect(row.textContent).toContain("25%");
    expect(row.textContent).toContain("(13%)");
    // 20 GB home on the 200 GB homes disk.
    expect(row.textContent).toContain("10%");
    expect(within(table).queryByText("claude")).toBeNull();
    fireEvent.click(mia.closest("button")!);
    expect(within(table).getByText("claude")).toBeTruthy();
  });
});