fusion/packages/dashboard/app/components/__tests__/SessionTerminal.mobile.test.tsx

import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { act, render, screen, fireEvent, waitFor } from "@testing-library/react";
import { _resetInitialViewportHeight } from "../../hooks/useMobileKeyboard";

// ── Mock xterm + addon dynamic imports (jsdom has no canvas/WebGL) ──────────
const mockTerm = {
  loadAddon: vi.fn(),
  open: vi.fn(),
  onData: vi.fn(),
  write: vi.fn((_data: string, cb?: () => void) => cb?.()),
  dispose: vi.fn(),
  unicode: { activeVersion: "6" },
  cols: 80,
  rows: 24,
};
vi.mock("@xterm/xterm", () => ({ Terminal: vi.fn(function Terminal() { return mockTerm; }) }));
vi.mock("@xterm/addon-fit", () => ({ FitAddon: vi.fn(function FitAddon() { return { fit: vi.fn() }; }) }));
vi.mock("@xterm/addon-unicode11", () => ({ Unicode11Addon: vi.fn(function Unicode11Addon() { return {}; }) }));
vi.mock("@xterm/addon-webgl", () => ({
  WebglAddon: vi.fn(function WebglAddon() { return { onContextLoss: vi.fn(), dispose: vi.fn() }; }),
}));

const apiMock = vi.fn();
vi.mock("../../api", () => ({ api: (...args: unknown[]) => apiMock(...args) }));
vi.mock("../../auth", () => ({ appendTokenQuery: (u: string) => u }));

// ── Minimal WebSocket stub ──────────────────────────────────────────────────
class FakeWS {
  static instances: FakeWS[] = [];
  static OPEN = 1;
  readyState = 1;
  onopen: (() => void) | null = null;
  onmessage: ((e: { data: string }) => void) | null = null;
  onclose: (() => void) | null = null;
  onerror: (() => void) | null = null;
  sent: string[] = [];
  constructor(public url: string) {
    FakeWS.instances.push(this);
  }
  send(d: string) {
    this.sent.push(d);
  }
  close() {
    this.readyState = 3;
  }
}
(globalThis as unknown as { WebSocket: typeof FakeWS }).WebSocket = FakeWS;
(globalThis as unknown as { ResizeObserver: unknown }).ResizeObserver = class {
  observe() {}
  disconnect() {}
};

// ── matchMedia mock: drive the mobile breakpoint convention ─────────────────
let matchMediaMatches = true;
function installMatchMedia(matches: boolean) {
  matchMediaMatches = matches;
  Object.defineProperty(window, "matchMedia", {
    writable: true,
    configurable: true,
    value: vi.fn((query: string) => ({
      matches: matchMediaMatches,
      media: query,
      onchange: null,
      addEventListener: vi.fn(),
      removeEventListener: vi.fn(),
      addListener: vi.fn(),
      removeListener: vi.fn(),
      dispatchEvent: vi.fn(),
    })),
  });
}

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

/** Pull the parsed input frames a WS has sent. */
function inputFrames(ws: FakeWS): string[] {
  return ws.sent
    .map((raw) => JSON.parse(raw))
    .filter((m) => m.type === "input")
    .map((m) => m.data as string);
}

/** Render and wait for the WS attach channel to open. */
async function renderMobile(props: Record<string, unknown> = {}) {
  const utils = render(<SessionTerminal sessionId="s1" {...props} />);
  await waitFor(() => expect(FakeWS.instances.length).toBe(1));
  return { ...utils, ws: FakeWS.instances[0] };
}

beforeEach(() => {
  FakeWS.instances = [];
  mockTerm.onData.mockReset();
  mockTerm.write.mockClear();
  apiMock.mockReset();
  apiMock.mockResolvedValue({ ticket: "tkt-1", expiresAt: "", readOnly: false });
  installMatchMedia(true); // mobile by default
  _resetInitialViewportHeight();
});

afterEach(() => {
  vi.clearAllMocks();
});

describe("SessionTerminal (mobile)", () => {
  it("renders the mobile input bar + accessory key bar on mobile viewports", async () => {
    await renderMobile();
    expect(screen.getByTestId("cli-terminal-mobile-bar")).toBeTruthy();
    expect(screen.getByTestId("cli-terminal-key-bar")).toBeTruthy();
    expect(screen.getByTestId("cli-terminal-mobile-input")).toBeTruthy();
  });

  it("does not render the mobile bar off-mobile (desktop breakpoint)", async () => {
    installMatchMedia(false);
    await renderMobile();
    expect(screen.queryByTestId("cli-terminal-mobile-bar")).toBeNull();
  });

  it("does not render the mobile bar when read-only", async () => {
    apiMock.mockResolvedValue({ ticket: "tkt-1", expiresAt: "", readOnly: true });
    await renderMobile({ readOnly: true });
    expect(screen.queryByTestId("cli-terminal-mobile-bar")).toBeNull();
  });

  // ── Accessory bar control sequences ───────────────────────────────────────
  it("Esc key emits 0x1b as an input frame", async () => {
    const { ws } = await renderMobile();
    fireEvent.click(screen.getByTestId("cli-key-esc"));
    expect(inputFrames(ws)).toContain("\x1b");
  });

  it("Tab key emits 0x09", async () => {
    const { ws } = await renderMobile();
    fireEvent.click(screen.getByTestId("cli-key-tab"));
    expect(inputFrames(ws)).toContain("\x09");
  });

  it("dedicated Ctrl-C shortcut emits 0x03", async () => {
    const { ws } = await renderMobile();
    fireEvent.click(screen.getByTestId("cli-key-ctrl-c"));
    expect(inputFrames(ws)).toContain("\x03");
  });

  it("arrow keys emit ANSI CSI cursor sequences", async () => {
    const { ws } = await renderMobile();
    fireEvent.click(screen.getByTestId("cli-key-arrow-up"));
    fireEvent.click(screen.getByTestId("cli-key-arrow-down"));
    fireEvent.click(screen.getByTestId("cli-key-arrow-right"));
    fireEvent.click(screen.getByTestId("cli-key-arrow-left"));
    const frames = inputFrames(ws);
    expect(frames).toContain("\x1b[A");
    expect(frames).toContain("\x1b[B");
    expect(frames).toContain("\x1b[C");
    expect(frames).toContain("\x1b[D");
  });

  // ── Sticky Ctrl modifier ──────────────────────────────────────────────────
  it("sticky Ctrl shows an active visual state", async () => {
    await renderMobile();
    const ctrl = screen.getByTestId("cli-key-ctrl");
    expect(ctrl.getAttribute("aria-pressed")).toBe("false");

    fireEvent.click(ctrl);
    expect(ctrl.getAttribute("aria-pressed")).toBe("true");
    expect(ctrl.className).toContain("cli-terminal-key--active");

    // Tapping again toggles it back off.
    fireEvent.click(ctrl);
    expect(ctrl.getAttribute("aria-pressed")).toBe("false");
  });

  it("sticky Ctrl + c → 0x03, + d → 0x04, + z → 0x1a (combined, swallowed from field)", async () => {
    const { ws } = await renderMobile();
    const ctrl = screen.getByTestId("cli-key-ctrl");
    const input = screen.getByTestId("cli-terminal-mobile-input") as HTMLInputElement;

    // Ctrl + c
    fireEvent.click(ctrl);
    fireEvent.change(input, { target: { value: "c" } });
    expect(input.value).toBe(""); // combined, not echoed
    expect(ctrl.getAttribute("aria-pressed")).toBe("false"); // cleared

    // Ctrl + d
    fireEvent.click(ctrl);
    fireEvent.change(input, { target: { value: "d" } });

    // Ctrl + z
    fireEvent.click(ctrl);
    fireEvent.change(input, { target: { value: "z" } });

    const frames = inputFrames(ws);
    expect(frames).toContain("\x03"); // Ctrl-C
    expect(frames).toContain("\x04"); // Ctrl-D
    expect(frames).toContain("\x1a"); // Ctrl-Z
  });

  it("without sticky Ctrl, typed letters land in the field (no combine)", async () => {
    await renderMobile();
    const input = screen.getByTestId("cli-terminal-mobile-input") as HTMLInputElement;
    fireEvent.change(input, { target: { value: "d" } });
    expect(input.value).toBe("d");
  });

  it("sticky Ctrl + arrow does not combine (no ctrl combo) but clears modifier", async () => {
    const { ws } = await renderMobile();
    const ctrl = screen.getByTestId("cli-key-ctrl");
    fireEvent.click(ctrl);
    fireEvent.click(screen.getByTestId("cli-key-arrow-up"));
    // Arrow has no Ctrl combo → literal CSI sequence is sent, modifier clears.
    expect(inputFrames(ws)).toContain("\x1b[A");
    expect(ctrl.getAttribute("aria-pressed")).toBe("false");
  });

  // ── Input field submit ────────────────────────────────────────────────────
  it("submitting the input field sends the text then \\r", async () => {
    const { ws } = await renderMobile();
    const input = screen.getByTestId("cli-terminal-mobile-input") as HTMLInputElement;
    fireEvent.change(input, { target: { value: "ls -la" } });
    fireEvent.click(screen.getByTestId("cli-terminal-mobile-send"));
    const frames = inputFrames(ws);
    const idx = frames.indexOf("ls -la");
    expect(idx).toBeGreaterThanOrEqual(0);
    expect(frames[idx + 1]).toBe("\r");
    // Field is cleared after submit.
    expect(input.value).toBe("");
  });

  it("input is user keystrokes — text is forwarded verbatim (no neutralization)", async () => {
    const { ws } = await renderMobile();
    const input = screen.getByTestId("cli-terminal-mobile-input") as HTMLInputElement;
    // An escape sequence typed by the user is sent verbatim (deliberate input).
    fireEvent.change(input, { target: { value: "echo \x1b[31m" } });
    fireEvent.click(screen.getByTestId("cli-terminal-mobile-send"));
    expect(inputFrames(ws)).toContain("echo \x1b[31m");
  });

  // ── iOS composer pattern: bar keys do not blur the input ──────────────────
  it("bar key pointerdown preventDefault keeps the input focused", async () => {
    await renderMobile();
    const esc = screen.getByTestId("cli-key-esc");
    const pdEvent = new Event("pointerdown", { bubbles: true, cancelable: true });
    esc.dispatchEvent(pdEvent);
    expect(pdEvent.defaultPrevented).toBe(true);
  });

  it("send button pointerdown preventDefault keeps the input focused", async () => {
    await renderMobile();
    const send = screen.getByTestId("cli-terminal-mobile-send");
    const pdEvent = new Event("pointerdown", { bubbles: true, cancelable: true });
    send.dispatchEvent(pdEvent);
    expect(pdEvent.defaultPrevented).toBe(true);
  });

  // ── AE6 mobile leg: same live bytes reach term.write ──────────────────────
  it("mobile attach renders the same live session bytes (data → term.write)", async () => {
    const { ws } = await renderMobile();
    const b64 = Buffer.from("live-bytes", "utf8").toString("base64");
    ws.onmessage?.({ data: JSON.stringify({ type: "data", data: b64 }) });
    await waitFor(() =>
      expect(mockTerm.write).toHaveBeenCalledWith("live-bytes", expect.any(Function)),
    );
  });

  it("xterm onData input is still attached on mobile (bar is primary, not exclusive)", async () => {
    await renderMobile();
    expect(mockTerm.onData).toHaveBeenCalled();
  });
});

// ── Keyboard-open (fixed-footer) + pinch-zoom guard ──────────────────────────
describe("SessionTerminal (mobile) — keyboard-open behavior", () => {
  let savedVisualViewport: typeof window.visualViewport;

  function installVisualViewport({
    innerHeight,
    vvHeight,
    scale = 1,
    vvOffsetTop = 0,
  }: {
    innerHeight: number;
    vvHeight: number;
    scale?: number;
    vvOffsetTop?: number;
  }) {
    (window as unknown as { ontouchstart: unknown }).ontouchstart = null;
    Object.defineProperty(navigator, "maxTouchPoints", { value: 5, configurable: true });
    Object.defineProperty(window, "innerWidth", { value: 375, writable: true, configurable: true });
    Object.defineProperty(window, "innerHeight", {
      value: innerHeight,
      writable: true,
      configurable: true,
    });
    const listeners: Record<string, Array<() => void>> = { resize: [], scroll: [] };
    const mockVV = {
      width: 375,
      height: vvHeight,
      offsetTop: vvOffsetTop,
      offsetLeft: 0,
      scale,
      addEventListener: vi.fn((event: string, cb: () => void) => {
        listeners[event]?.push(cb);
      }),
      removeEventListener: vi.fn(),
    };
    Object.defineProperty(window, "visualViewport", {
      value: mockVV,
      writable: true,
      configurable: true,
    });
    return { listeners, mockVV };
  }

  beforeEach(() => {
    FakeWS.instances = [];
    mockTerm.onData.mockReset();
    apiMock.mockReset();
    apiMock.mockResolvedValue({ ticket: "tkt-1", expiresAt: "", readOnly: false });
    installMatchMedia(true);
    _resetInitialViewportHeight();
    savedVisualViewport = window.visualViewport;
  });

  afterEach(() => {
    Object.defineProperty(window, "visualViewport", {
      value: savedVisualViewport,
      writable: true,
      configurable: true,
    });
    _resetInitialViewportHeight();
    vi.clearAllMocks();
  });

  it("keyboard-open applies the fixed-footer class so the bar is not occluded", async () => {
    installVisualViewport({ innerHeight: 800, vvHeight: 600 });
    const input = document.createElement("textarea");
    document.body.appendChild(input);
    input.focus();

    render(<SessionTerminal sessionId="s1" />);
    await waitFor(() => expect(FakeWS.instances.length).toBe(1));

    await waitFor(() => {
      const bar = screen.getByTestId("cli-terminal-mobile-bar");
      expect(bar.className).toContain("cli-session-terminal__mobile-bar--keyboard-open");
      // Bar lifted above the keyboard by keyboardOverlap (800 - 600 = 200).
      expect(bar.style.bottom).toBe("200px");
    });

    input.remove();
  });

  it("pinch-zoom (vv.scale > 1) is NOT treated as keyboard-open", async () => {
    installVisualViewport({ innerHeight: 800, vvHeight: 600, scale: 2 });
    const input = document.createElement("textarea");
    document.body.appendChild(input);
    input.focus();

    render(<SessionTerminal sessionId="s1" />);
    await waitFor(() => expect(FakeWS.instances.length).toBe(1));

    // Give the keyboard hook a beat to settle; it must stay closed.
    await act(async () => {
      await new Promise((r) => setTimeout(r, 60));
    });

    const bar = screen.getByTestId("cli-terminal-mobile-bar");
    expect(bar.className).not.toContain("cli-session-terminal__mobile-bar--keyboard-open");
    expect(bar.getAttribute("data-keyboard-open")).not.toBe("true");

    input.remove();
  });
});