/**
 * @file Onboarding.test.tsx
 * @description The first-run setup (docs/plans/onboarding): the account's
 * preferences are loaded into localStorage on sign-in and every later change
 * is sent back; the starting choices never hold bypass; the wizard shows only
 * for an account that is new to it, writes each pick like Settings does and
 * ends in the tour; the tour follows the real UI step by step.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { describe, it, expect, beforeEach, vi } from "vitest";
import { act, render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { MemoryRouter } from "react-router-dom";

const prefsMock = vi.fn();
const saveMock = vi.fn();
const onboardedMock = vi.fn();
const lanesMock = vi.fn();

vi.mock("../../../lib/api", async (importOriginal) => {
  const actual = await importOriginal<Record<string, unknown>>();
  return {
    ...actual,
    api: {
      me: {
        prefs: () => prefsMock(),
        savePrefs: (p: unknown) => saveMock(p),
        onboarded: () => onboardedMock(),
      },
      lanes: { list: () => lanesMock() },
      aiTools: {
        iconUrl: (id: string) => `/api/ai-tools/${id}/icon`,
        list: async () => ({
          default: "claude",
          catalog: [],
          tools: [
            {
              id: "claude",
              label: "Claude Code",
              command: "claude",
              installed: true,
              enabled: true,
            },
            { id: "codex", label: "Codex", command: "codex", installed: true, enabled: true },
            { id: "kimi", label: "Kimi Code", command: "kimi", installed: false, enabled: true },
          ],
        }),
      },
    },
  };
});
vi.mock("../../settings/PetSettings", () => ({
  PetSettings: () => <div data-testid="pet-settings" />,
}));

import { __resetUserPrefs, hydrate, useOnboarding } from "../../../lib/userPrefs";
import { readDefaultMode, writeDefaultMode } from "../../../lib/sessionDefaults";
import { OnboardingWizard } from "../OnboardingWizard";
import { OnboardingTour, startTour } from "../OnboardingTour";
import { __resetAiTools } from "../../../hooks/useAiTools";

beforeEach(() => {
  localStorage.clear();
  __resetUserPrefs();
  __resetAiTools();
  prefsMock.mockReset();
  saveMock.mockReset().mockResolvedValue({ prefs: {}, onboardedAt: null });
  onboardedMock.mockReset().mockResolvedValue({ prefs: {}, onboardedAt: "2026-10-08T00:00:00Z" });
  lanesMock.mockReset().mockResolvedValue({ lanes: [], counts: {} });
});

describe("account preferences", () => {
  it("loads the account's values, sends up this browser's, then every change", async () => {
    vi.useFakeTimers();
    try {
      localStorage.setItem("agenthub.terminal.font", "maple");
      localStorage.setItem("theme", "dark");
      prefsMock.mockResolvedValue({ prefs: { theme: "light" }, onboardedAt: null });
      await hydrate();
      expect(localStorage.getItem("theme")).toBe("light");
      await vi.advanceTimersByTimeAsync(10);
      expect(saveMock).toHaveBeenCalledWith(
        expect.objectContaining({ "agenthub.terminal.font": "maple" })
      );
      saveMock.mockClear();
      localStorage.setItem("agenthub.theme.dark", "darcula");
      localStorage.setItem("unrelated.key", "x");
      localStorage.removeItem("agenthub.pet");
      await vi.advanceTimersByTimeAsync(500);
      expect(saveMock).toHaveBeenCalledTimes(1);
      expect(saveMock).toHaveBeenCalledWith({
        "agenthub.theme.dark": "darcula",
        "agenthub.pet": null,
      });
    } finally {
      vi.useRealTimers();
    }
  });

  it("never keeps bypass as the starting permission mode", () => {
    localStorage.setItem("agenthub.permissionMode", "bypassPermissions");
    expect(readDefaultMode()).toBe("auto");
    writeDefaultMode("bypassPermissions" as never);
    expect(localStorage.getItem("agenthub.permissionMode")).toBe("bypassPermissions");
    writeDefaultMode("plan");
    expect(readDefaultMode()).toBe("plan");
  });
});

function Probe() {
  const s = useOnboarding();
  return <span data-testid="onboarded">{s.onboardedAt ?? "no"}</span>;
}
const renderWizard = () =>
  render(
    <MemoryRouter>
      <OnboardingWizard />
      <Probe />
    </MemoryRouter>
  );

describe("the setup wizard", () => {
  it("does not show before the account's preferences load, nor once done", async () => {
    renderWizard();
    expect(screen.queryByTestId("onboarding-wizard")).toBeNull();
    prefsMock.mockResolvedValue({ prefs: {}, onboardedAt: "2026-01-01T00:00:00Z" });
    await act(() => hydrate());
    expect(screen.queryByTestId("onboarding-wizard")).toBeNull();
  });

  it("skips itself for an account that already has a workspace", async () => {
    lanesMock.mockResolvedValue({ lanes: [{ id: 1 }], counts: {} });
    prefsMock.mockResolvedValue({ prefs: {}, onboardedAt: null });
    renderWizard();
    await act(() => hydrate());
    await waitFor(() => expect(onboardedMock).toHaveBeenCalled());
    expect(screen.queryByTestId("onboarding-wizard")).toBeNull();
  });

  it("walks four steps, saving each pick, and ends in the tour", async () => {
    const user = userEvent.setup();
    prefsMock.mockResolvedValue({ prefs: {}, onboardedAt: null });
    renderWizard();
    await act(() => hydrate());
    await screen.findByTestId("onboarding-wizard");
    expect(screen.getByText("Pick your default agent")).toBeInTheDocument();
    await user.click(await screen.findByTestId("onboarding-agent-codex"));
    expect(localStorage.getItem("agenthub.defaultTool")).toBe("codex");
    // A tool that is not installed is not offered until asked for, and never pickable.
    expect(screen.queryByText("Kimi Code")).toBeNull();
    await user.click(screen.getByText(/Show 1 more agents/));
    expect(screen.getByText("Kimi Code").closest("button")).toBeNull();
    await user.click(screen.getByRole("radio", { name: "Plan" }));
    expect(localStorage.getItem("agenthub.permissionMode")).toBe("plan");

    await user.click(screen.getByTestId("onboarding-next"));
    expect(screen.getByText("Make it feel like home")).toBeInTheDocument();
    await user.click(screen.getByTestId("onboarding-mode-light"));
    expect(localStorage.getItem("theme")).toBe("light");
    await user.click(screen.getByRole("button", { name: "Light theme: Canvas" }));
    expect(localStorage.getItem("agenthub.theme.light")).toBe("canvas");

    await user.click(screen.getByTestId("onboarding-next"));
    expect(screen.getByTestId("pet-settings")).toBeInTheDocument();
    await user.click(screen.getByTestId("onboarding-next"));
    expect(screen.getByText("Set up notifications")).toBeInTheDocument();
    await user.click(screen.getByRole("button", { name: /Add your first workspace/ }));
    await waitFor(() => expect(onboardedMock).toHaveBeenCalled());
    expect(screen.queryByTestId("onboarding-wizard")).toBeNull();
    expect(localStorage.getItem("agenthub.tour")).toBe("add");
  });

  it("is skipped for good with Skip setup", async () => {
    const user = userEvent.setup();
    prefsMock.mockResolvedValue({ prefs: {}, onboardedAt: null });
    renderWizard();
    await act(() => hydrate());
    await user.click(await screen.findByRole("button", { name: "Skip setup" }));
    await waitFor(() => expect(screen.getByTestId("onboarded").textContent).not.toBe("no"));
    expect(onboardedMock).toHaveBeenCalled();
    expect(localStorage.getItem("agenthub.tour")).toBeNull();
  });
});

describe("the tour", () => {
  const mount = (html: string) => {
    const host = document.createElement("div");
    host.innerHTML = html;
    document.body.appendChild(host);
    return host;
  };
  // jsdom has no layout: give the targets a box.
  const boxed = () =>
    vi.spyOn(Element.prototype, "getBoundingClientRect").mockReturnValue({
      x: 10,
      y: 10,
      left: 10,
      top: 10,
      width: 100,
      height: 30,
      right: 110,
      bottom: 40,
      toJSON: () => ({}),
    } as DOMRect);

  it("follows the real UI: add → folder → create → prompt", async () => {
    const spy = boxed();
    const user = userEvent.setup();
    const page = mount('<button data-testid="workspace-tree-add">+</button>');
    try {
      startTour();
      render(
        <MemoryRouter initialEntries={["/workspace"]}>
          <OnboardingTour />
        </MemoryRouter>
      );
      expect(await screen.findByText("Create your first workspace")).toBeInTheDocument();
      // The dialog opened: the tour moves on by itself.
      const dialog = mount(
        '<div data-tour="add-lane"><div data-tour="add-lane-folder"></div><button data-tour="add-lane-create"></button></div>'
      );
      expect(await screen.findByText("Choose the project folder")).toBeInTheDocument();
      await user.click(screen.getByTestId("onboarding-tour-next"));
      expect(screen.getByText("Create it")).toBeInTheDocument();
      // Created: the dialog is gone and the workspace's prompt box is there.
      dialog.remove();
      page.innerHTML = '<div data-testid="workspace-home-composer"></div>';
      expect(await screen.findByText("Start your first session")).toBeInTheDocument();
      expect(localStorage.getItem("agenthub.tour")).toBe("prompt");
      await user.click(screen.getByRole("button", { name: "Skip tour" }));
      expect(screen.queryByTestId("onboarding-tour")).toBeNull();
      expect(localStorage.getItem("agenthub.tour")).toBe("done");
    } finally {
      spy.mockRestore();
      page.remove();
    }
  });

  it("goes back to Add workspace when the dialog closes with nothing made", async () => {
    const spy = boxed();
    const page = mount('<button data-testid="workspace-tree-add">+</button>');
    try {
      localStorage.setItem("agenthub.tour", "create");
      render(
        <MemoryRouter initialEntries={["/workspace"]}>
          <OnboardingTour />
        </MemoryRouter>
      );
      expect(await screen.findByText("Create your first workspace")).toBeInTheDocument();
    } finally {
      spy.mockRestore();
      page.remove();
    }
  });
});