/**
 * Ticket #147 — custom CLI mode for structured/headless agent cells.
 *
 * Plain cells and PTY-only profiles stay on the native TUI. Structured profiles
 * get a per-cell toggle; switching a live session requires confirmation, then
 * the custom chat view drives `ReplyChunk` streams defensively.
 */
import { beforeEach, describe, expect, it, vi } from "vitest";
import { fireEvent, render, screen, waitFor } from "@testing-library/react";

vi.mock("@xterm/xterm", () => ({
  Terminal: class {
    loadAddon() {}
    open() {}
    onData() {
      return { dispose() {} };
    }
    onResize() {
      return { dispose() {} };
    }
    write() {}
    dispose() {}
    get cols() {
      return 80;
    }
    get rows() {
      return 24;
    }
  },
}));
vi.mock("@xterm/addon-fit", () => ({
  FitAddon: class {
    fit() {}
  },
}));
vi.mock("@xterm/xterm/css/xterm.css", () => ({}));

if (typeof globalThis.ResizeObserver === "undefined") {
  globalThis.ResizeObserver = class {
    observe() {}
    unobserve() {}
    disconnect() {}
  } as unknown as typeof ResizeObserver;
}

import type { AgentProfile } from "@/domain";
import type { Gateways } from "@/ports";
import {
  MockAgentGateway,
  MockLayoutGateway,
  MockProfileGateway,
  MockSystemGateway,
  MockTerminalGateway,
  MockWorkStateGateway,
} from "@/adapters/mock";
import { DIProvider } from "@/app/di";
import { leaves } from "./layout";
import { LayoutGrid } from "./LayoutGrid";

const structuredProfile: AgentProfile = {
  id: "mock-structured",
  name: "Structured Codex",
  command: "codex",
  args: [],
  contextInjection: { strategy: "conventionFile", target: "AGENTS.md" },
  detect: null,
  cwdTemplate: "{projectRoot}",
  structuredAdapter: "codex",
};

const ptyProfile: AgentProfile = {
  id: "mock-pty",
  name: "Plain PTY",
  command: "bash",
  args: [],
  contextInjection: { strategy: "conventionFile", target: "AGENTS.md" },
  detect: null,
  cwdTemplate: "{projectRoot}",
};

function deferred<T>() {
  let resolve!: (value: T | PromiseLike<T>) => void;
  const promise = new Promise<T>((res) => {
    resolve = res;
  });
  return { promise, resolve };
}

beforeEach(() => {
  window.localStorage.clear();
});

async function seeded(profile: AgentProfile): Promise<Gateways> {
  const layout = new MockLayoutGateway();
  const agent = new MockAgentGateway();
  const profileGateway = new MockProfileGateway();
  const terminal = new MockTerminalGateway();
  const system = new MockSystemGateway();
  const workState = new MockWorkStateGateway();
  await profileGateway.configureProfiles([profile]);
  const created = await agent.createAgent("p1", {
    name: "Worker",
    profileId: profile.id,
  });
  const tree = await layout.loadLayout("p1");
  const leafId = leaves(tree)[0].id;
  await layout.mutateLayout("p1", {
    type: "setCellAgent",
    target: leafId,
    agent: created.id,
  });
  return {
    layout,
    agent,
    profile: profileGateway,
    terminal,
    system,
    workState,
  } as unknown as Gateways;
}

function renderGrid(gateways: Gateways, projectId = "p1") {
  const cwd = projectId === "p1" ? "/home/me/proj" : `/home/me/${projectId}`;
  return render(
    <DIProvider gateways={gateways}>
      <LayoutGrid projectId={projectId} cwd={cwd} />
    </DIProvider>,
  );
}

describe("LayoutGrid custom agent CLI (#147)", () => {
  it("does not show the custom CLI toggle in a plain cell", async () => {
    const gateways = {
      layout: new MockLayoutGateway(),
      agent: new MockAgentGateway(),
      profile: new MockProfileGateway(),
      terminal: new MockTerminalGateway(),
      system: new MockSystemGateway(),
    } as unknown as Gateways;

    renderGrid(gateways);

    await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
    expect(screen.queryByText("CLI custom")).toBeNull();
    expect(screen.getByTestId("terminal-view")).toBeTruthy();
  });

  it("does not show the custom CLI toggle for a PTY-only profile", async () => {
    renderGrid(await seeded(ptyProfile));

    await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
    expect(screen.queryByText("CLI custom")).toBeNull();
    expect(screen.getByTestId("terminal-view")).toBeTruthy();
  });

  it("shows the custom CLI toggle for structured profiles and streams a final callout", async () => {
    renderGrid(await seeded(structuredProfile));

    await waitFor(() => expect(screen.getByText("CLI custom")).toBeTruthy());
    expect(screen.getByTestId("terminal-view")).toBeTruthy();

    fireEvent.click(screen.getByText("CLI custom"));
    await waitFor(() =>
      expect(screen.getByRole("alertdialog", { name: "Confirmer le changement de CLI" })).toBeTruthy(),
    );
    fireEvent.click(screen.getByText("Basculer"));
    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );

    fireEvent.click(screen.getByText("Joindre"));
    await waitFor(() =>
      expect(screen.getByText(/mock-attachment.txt/)).toBeTruthy(),
    );
    fireEvent.change(screen.getByLabelText(/Message CLI personnalisée/), {
      target: { value: "hello there" },
    });
    fireEvent.click(screen.getByText("Envoyer"));

    await waitFor(() => expect(screen.getByText("Terminé")).toBeTruthy());
    expect(screen.getAllByText(/Agent: reçu/).length).toBeGreaterThan(0);
    expect(screen.getAllByText(/hello there/).length).toBeGreaterThan(0);
    expect(screen.getAllByText(/mock-attachment.txt/).length).toBeGreaterThan(0);
  });

  it("restores preferredView=chat ahead of stale localStorage without a resume warning", async () => {
    const gateways = await seeded(structuredProfile);
    const layout = gateways.layout as MockLayoutGateway;
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellPreferredView",
      target: leafId,
      preferredView: "chat",
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "tui");

    renderGrid(gateways);

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    expect(screen.queryByRole("alertdialog", { name: "Confirmer le changement de CLI" }))
      .toBeNull();
    expect(screen.queryByText(/Aucune conversation reprenable/)).toBeNull();
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
  });

  it("restores a project custom CLI cell after switching away and back without rewriting durable ids", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    const workState = new MockWorkStateGateway();
    await profileGateway.configureProfiles([structuredProfile]);

    const agentA = await agent.createAgent("p1", {
      name: "Worker A",
      profileId: structuredProfile.id,
    });
    const treeA = await layout.loadLayout("p1");
    const leafA = leaves(treeA)[0];
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafA.id,
      agent: agentA.id,
    });
    await layout.mutateLayout("p1", {
      type: "setCellPreferredView",
      target: leafA.id,
      preferredView: "chat",
    });

    const agentB = await agent.createAgent("p2", {
      name: "Worker B",
      profileId: structuredProfile.id,
    });
    const treeB = await layout.loadLayout("p2");
    const leafB = leaves(treeB)[0];
    await layout.mutateLayout("p2", {
      type: "setCellAgent",
      target: leafB.id,
      agent: agentB.id,
    });

    const gateways = {
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
      workState,
    } as unknown as Gateways;
    const view = renderGrid(gateways, "p1");

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      const leaf = leaves(updated)[0];
      expect(leaf.preferredView).toBe("chat");
      expect(leaf.session).toMatch(/^mock-agent-chat-/);
      expect(leaf.conversationId).toMatch(/^mock-conversation-mock-agent-chat-/);
    });
    const persistedA = leaves(await layout.loadLayout("p1"))[0];

    view.rerender(
      <DIProvider gateways={gateways}>
        <LayoutGrid projectId="p2" cwd="/home/me/p2" />
      </DIProvider>,
    );
    await waitFor(() => expect(screen.queryByTestId("custom-agent-chat-view")).toBeNull());

    view.rerender(
      <DIProvider gateways={gateways}>
        <LayoutGrid projectId="p1" cwd="/home/me/proj" />
      </DIProvider>,
    );

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    expect(screen.queryByTestId("terminal-view")).toBeNull();
    expect(screen.queryByRole("alertdialog", { name: "Confirmer le changement de CLI" }))
      .toBeNull();
    expect(screen.queryByText(/Aucune conversation reprenable/)).toBeNull();
    const restoredA = leaves(await layout.loadLayout("p1"))[0];
    expect(restoredA.preferredView).toBe("chat");
    expect(restoredA.session).toBe(persistedA.session);
    expect(restoredA.conversationId).toBe(persistedA.conversationId);
  });

  it("keeps custom CLI and composer active while busy, then queues without sending (#247/#352)", async () => {
    const gateways = await seeded(structuredProfile);
    const layout = gateways.layout as MockLayoutGateway;
    const agent = gateways.agent as MockAgentGateway;
    const sendAgentChat = vi.spyOn(agent, "sendAgentChat");
    const workState = gateways.workState as MockWorkStateGateway;
    const tree = await layout.loadLayout("p1");
    const leaf = leaves(tree)[0];
    const agentId = leaf.agent;
    if (!agentId) throw new Error("expected seeded agent");
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leaf.id}`, "custom");
    workState._setProjectWorkState("p1", {
      agents: [
        {
          agentId,
          name: "Worker",
          profileId: structuredProfile.id,
          busy: { state: "busy", ticket: "ticket-232", sinceMs: 1 },
          tickets: [
            {
              ticketId: "ticket-232",
              conversationId: "conversation-232",
              position: 0,
              status: "inProgress",
              source: { kind: "agent", agentId: "main" },
              requesterLabel: "Main",
              taskPreview: "Analyse",
              taskLen: 7,
            },
          ],
        },
      ],
      conversations: [],
    });

    renderGrid(gateways);

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    expect(screen.queryByTestId("target-announcements-overlay")).toBeNull();
    expect(screen.queryByText("Busy · Main")).toBeNull();
    expect(screen.getByLabelText(`Sélecteur d’agent ${leaf.id}`)).toBeTruthy();
    expect(screen.queryByRole("button", {
      name: `cancel current turn ${leaf.id}`,
    })).toBeNull();
    const composer = await screen.findByLabelText(/Message CLI personnalisée/);
    await waitFor(() => expect(composer).toHaveProperty("disabled", false));
    expect(screen.getByRole("button", { name: "Stop" })).toBeTruthy();
    const queueAction = screen.getByRole("button", { name: "Mettre en attente" });
    fireEvent.change(composer, { target: { value: "Question suivante" } });
    fireEvent.click(queueAction);

    expect(await screen.findByText("Message ajouté à la file d’attente")).toBeTruthy();
    expect(screen.getByRole("button", { name: "En attente · 1" })).toBeTruthy();
    expect((composer as HTMLTextAreaElement).value).toBe("");
    expect(sendAgentChat).not.toHaveBeenCalled();
  });

  it("renders requester-side delegation fallback in custom mode after remount (#232)", async () => {
    const gateways = await seeded(structuredProfile);
    const layout = gateways.layout as MockLayoutGateway;
    const workState = gateways.workState as MockWorkStateGateway;
    const tree = await layout.loadLayout("p1");
    const leaf = leaves(tree)[0];
    const requesterId = leaf.agent;
    if (!requesterId) throw new Error("expected seeded requester");
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leaf.id}`, "custom");
    workState._setProjectWorkState("p1", {
      agents: [
        {
          agentId: requesterId,
          name: "Worker",
          profileId: structuredProfile.id,
          busy: { state: "idle" },
          tickets: [],
        },
        {
          agentId: "target-agent",
          name: "Architect",
          profileId: structuredProfile.id,
          busy: { state: "busy", ticket: "ticket-232", sinceMs: 1 },
          tickets: [
            {
              ticketId: "ticket-232",
              conversationId: "conversation-232",
              position: 0,
              status: "inProgress",
              source: { kind: "agent", agentId: requesterId },
              requesterLabel: "Worker",
              taskPreview: "Répondre",
              taskLen: 8,
            },
          ],
        },
      ],
      conversations: [],
    });

    const view = renderGrid(gateways);

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    expect(await screen.findByText("Worker attend Architect")).toBeTruthy();

    view.unmount();
    renderGrid(gateways);

    expect(await screen.findByTestId("custom-agent-chat-view")).toBeTruthy();
    expect(await screen.findByText("Worker attend Architect")).toBeTruthy();
  });

  it("persists custom CLI composer height per layout cell", async () => {
    const rectSpy = vi
      .spyOn(HTMLElement.prototype, "getBoundingClientRect")
      .mockReturnValue({
        x: 0,
        y: 0,
        width: 600,
        height: 400,
        top: 0,
        right: 600,
        bottom: 400,
        left: 0,
        toJSON: () => {},
      } as DOMRect);
    const gateways = await seeded(structuredProfile);
    const layout = gateways.layout as MockLayoutGateway;
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");

    try {
      renderGrid(gateways);

      const composer = await screen.findByLabelText(/Message CLI personnalisée/) as HTMLTextAreaElement;
      const handle = screen.getByRole("button", {
        name: `Redimensionner l’éditeur ${leafId}`,
      });
      expect(composer.style.height).toBe("64px");
      expect(window.localStorage.getItem(`idea.custom-chat-composer-height.p1.${leafId}`))
        .toBeNull();

      fireEvent.mouseDown(handle, { clientY: 200 });
      fireEvent.mouseMove(window, { clientY: 100 });
      fireEvent.mouseUp(window);

      await waitFor(() => expect(composer.style.height).toBe("164px"));
      expect(window.localStorage.getItem(`idea.custom-chat-composer-height.p1.${leafId}`))
        .toBe("164");
    } finally {
      rectSpy.mockRestore();
    }
  });

  it("opens the custom CLI even when the agent already has a structured background session (#169)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");
    await agent.launchAgentChat("p1", created.id, {
      cwd: "/home/me/proj",
      rows: 24,
      cols: 80,
      nodeId: "structured-background",
    });
    const launchChat = vi.spyOn(agent, "launchAgentChat");

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );
    await waitFor(() => expect(launchChat).toHaveBeenCalled());
    expect(launchChat.mock.calls.at(-1)?.[2]).toMatchObject({ nodeId: leafId });
    expect(screen.queryByText(/déjà actif dans une autre cellule/)).toBeNull();
  });

  it("restores a custom CLI transcript when returning with a conversation id but no session (#217)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    await layout.mutateLayout("p1", {
      type: "setCellConversation",
      target: leafId,
      conversationId: "conversation-known",
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");
    const launchChat = vi.spyOn(agent, "launchAgentChat").mockResolvedValue({
      sessionId: "chat-resumed",
      cellKind: "chat" as const,
    });
    const reattachChat = vi.spyOn(agent, "reattachAgentChat").mockResolvedValue({
      sessionId: "chat-resumed",
      scrollback: [
        { kind: "userPrompt", text: "known prompt" },
        { kind: "final", content: "known answer" },
      ],
    });

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    expect(await screen.findByText("known answer")).toBeTruthy();
    expect(screen.getByText("known prompt")).toBeTruthy();
    expect(launchChat).toHaveBeenCalledWith(
      "p1",
      created.id,
      expect.objectContaining({
        nodeId: leafId,
        conversationId: "conversation-known",
      }),
    );
    expect(reattachChat).toHaveBeenCalledWith("chat-resumed", expect.any(Function));
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      const leaf = leaves(updated)[0];
      expect(leaf.conversationId).toBe("conversation-known");
      expect(leaf.session).toBe("chat-resumed");
    });
    expect(screen.queryByText("Envoyez un message pour démarrer la conversation structurée."))
      .toBeNull();
  });

  it("relaunches a stopped custom CLI agent from scratch (#197)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    const workState = new MockWorkStateGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    await layout.mutateLayout("p1", {
      type: "setSession",
      target: leafId,
      session: "dead-structured-session",
    });
    await layout.mutateLayout("p1", {
      type: "setCellConversation",
      target: leafId,
      conversationId: "old-structured-conversation",
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");
    workState._setProjectWorkState("p1", {
      agents: [
        {
          agentId: created.id,
          name: "Worker",
          profileId: structuredProfile.id,
          runtimeState: "stopped",
          busy: { state: "idle" },
        },
      ],
    });
    const launchChat = vi.spyOn(agent, "launchAgentChat");

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
      workState,
    } as unknown as Gateways);

    fireEvent.click(await screen.findByRole("button", { name: "Relancer" }));

    await waitFor(() => expect(launchChat).toHaveBeenCalledTimes(1));
    expect(launchChat.mock.calls[0]?.[2]).toMatchObject({
      cwd: "/home/me/proj",
      nodeId: leafId,
      freshStart: true,
    });
    expect(launchChat.mock.calls[0]?.[2].conversationId).toBeUndefined();
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      const leaf = leaves(updated)[0];
      expect(leaf.session).toMatch(/^mock-agent-chat-/);
      expect(leaf.conversationId).toMatch(/^mock-conversation-/);
    });
  });

  it("closes the structured chat session by id before switching back to native TUI (#170)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");
    const closeChat = vi.spyOn(agent, "closeAgentChat");
    const stopLive = vi.spyOn(agent, "stopLiveAgent");

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      expect(leaves(updated)[0].session).toMatch(/^mock-agent-chat-/);
    });

    fireEvent.click(screen.getByText("TUI native"));
    await waitFor(() =>
      expect(screen.getByRole("alertdialog", { name: "Confirmer le changement de CLI" })).toBeTruthy(),
    );
    fireEvent.click(screen.getByText("Basculer"));

    await waitFor(() =>
      expect(closeChat).toHaveBeenCalledWith(expect.stringMatching(/^mock-agent-chat-/)),
    );
    expect(stopLive).not.toHaveBeenCalled();
    await waitFor(() => expect(screen.getByTestId("terminal-view")).toBeTruthy());
    const updated = await layout.loadLayout("p1");
    expect(leaves(updated)[0].preferredView).toBeUndefined();
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("tui");
  });

  it("switches a live native TUI session to custom CLI without stopping it first (#189)", async () => {
    const gateways = await seeded(structuredProfile);
    const agent = gateways.agent as MockAgentGateway;
    const terminal = gateways.terminal as MockTerminalGateway;
    const layout = gateways.layout as MockLayoutGateway;
    const leafId = leaves(await layout.loadLayout("p1"))[0].id;
    const stopLive = vi.spyOn(agent, "stopLiveAgent");
    const closeTerminal = vi.spyOn(terminal, "closeTerminal");
    const launchChat = vi.spyOn(agent, "launchAgentChat");

    renderGrid(gateways);

    await waitFor(() => expect(screen.getByText("CLI custom")).toBeTruthy());
    await waitFor(() =>
      expect(screen.getByTestId("terminal-view")).toBeTruthy(),
    );
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      expect(leaves(updated)[0].session).toMatch(/^mock-agent-session-/);
    });

    fireEvent.click(screen.getByText("CLI custom"));

    await waitFor(() =>
      expect(screen.getByRole("alertdialog", { name: "Confirmer le changement de CLI" })).toBeTruthy(),
    );
    expect(screen.getByText(/Une reprise est possible/)).toBeTruthy();

    fireEvent.click(screen.getByText("Basculer"));
    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );
    expect(stopLive).not.toHaveBeenCalled();
    expect(closeTerminal).not.toHaveBeenCalled();
    await waitFor(() => expect(launchChat).toHaveBeenCalled());
    expect(launchChat.mock.calls.at(-1)?.[2]).toMatchObject({ nodeId: leafId });
    await waitFor(async () => {
      const updated = await layout.loadLayout("p1");
      expect(leaves(updated)[0].session).toMatch(/^mock-agent-chat-/);
    });
  });

  it("keeps a restored custom CLI mode while the agent/profile catalog is still loading (#149)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");

    const agentsLoaded = deferred<void>();
    const profilesLoaded = deferred<void>();
    const originalListAgents = agent.listAgents.bind(agent);
    const originalListProfiles = profileGateway.listProfiles.bind(profileGateway);
    vi.spyOn(agent, "listAgents").mockImplementation(async (projectId) => {
      await agentsLoaded.promise;
      return originalListAgents(projectId);
    });
    vi.spyOn(profileGateway, "listProfiles").mockImplementation(async () => {
      await profilesLoaded.promise;
      return originalListProfiles();
    });

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
    expect(screen.queryByTestId("custom-agent-chat-view")).toBeNull();

    agentsLoaded.resolve();
    profilesLoaded.resolve();

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
  });

  it("keeps restored custom CLI mode until a stale catalog refresh sees the agent/profile (#149)", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");

    let staleCatalog = true;
    const originalListAgents = agent.listAgents.bind(agent);
    const originalListProfiles = profileGateway.listProfiles.bind(profileGateway);
    vi.spyOn(agent, "listAgents").mockImplementation(async (projectId) => {
      if (staleCatalog) return [];
      return originalListAgents(projectId);
    });
    vi.spyOn(profileGateway, "listProfiles").mockImplementation(async () => {
      if (staleCatalog) return [];
      return originalListProfiles();
    });

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
    await waitFor(() => expect(agent.listAgents).toHaveBeenCalled());
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
    expect(screen.queryByTestId("custom-agent-chat-view")).toBeNull();
    expect(screen.getByTestId("custom-agent-chat-unavailable")).toBeTruthy();

    staleCatalog = false;
    system.emit({
      type: "agentProfileChanged",
      agentId: created.id,
      profileId: structuredProfile.id,
    });

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
  });

  it("keeps the custom preference and shows a non-destructive state when the profile is incompatible", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([ptyProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: ptyProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");

    const agentsLoaded = deferred<void>();
    const profilesLoaded = deferred<void>();
    const originalListAgents = agent.listAgents.bind(agent);
    const originalListProfiles = profileGateway.listProfiles.bind(profileGateway);
    vi.spyOn(agent, "listAgents").mockImplementation(async (projectId) => {
      await agentsLoaded.promise;
      return originalListAgents(projectId);
    });
    vi.spyOn(profileGateway, "listProfiles").mockImplementation(async () => {
      await profilesLoaded.promise;
      return originalListProfiles();
    });

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");

    agentsLoaded.resolve();
    profilesLoaded.resolve();

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-unavailable")).toBeTruthy(),
    );
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
    const updated = await layout.loadLayout("p1");
    expect(leaves(updated)[0].preferredView).toBe("chat");
    expect(screen.queryByTestId("terminal-view")).toBeNull();
    expect(screen.queryByTestId("custom-agent-chat-view")).toBeNull();
  });

  it("does not overwrite the custom preference after a profile-change downgrade", async () => {
    const layout = new MockLayoutGateway();
    const agent = new MockAgentGateway();
    const profileGateway = new MockProfileGateway();
    const terminal = new MockTerminalGateway();
    const system = new MockSystemGateway();
    await profileGateway.configureProfiles([structuredProfile, ptyProfile]);
    const created = await agent.createAgent("p1", {
      name: "Worker",
      profileId: structuredProfile.id,
    });
    const tree = await layout.loadLayout("p1");
    const leafId = leaves(tree)[0].id;
    await layout.mutateLayout("p1", {
      type: "setCellAgent",
      target: leafId,
      agent: created.id,
    });
    window.localStorage.setItem(`idea.agent-cell-mode.p1.${leafId}`, "custom");

    renderGrid({
      layout,
      agent,
      profile: profileGateway,
      terminal,
      system,
    } as unknown as Gateways);

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-view")).toBeTruthy(),
    );

    await agent.changeAgentProfile("p1", created.id, ptyProfile.id, 24, 80);
    system.emit({
      type: "agentProfileChanged",
      agentId: created.id,
      profileId: ptyProfile.id,
    });

    await waitFor(() =>
      expect(screen.getByTestId("custom-agent-chat-unavailable")).toBeTruthy(),
    );
    expect(window.localStorage.getItem(`idea.agent-cell-mode.p1.${leafId}`)).toBe("custom");
    const updated = await layout.loadLayout("p1");
    expect(leaves(updated)[0].preferredView).toBe("chat");
    expect(screen.queryByTestId("terminal-view")).toBeNull();
    expect(screen.queryByTestId("custom-agent-chat-view")).toBeNull();
  });
});