/**
 * Task H1 – simple/pro Mode.
 *
 * uiModeService: persistierter UI-Modus ('simple' | 'pro', Default 'pro'),
 * localStorage-Persistenz, Subscribe für Live-Updates.
 * RibbonBar filtert im simple-Modus auf tools mit tags 'basic'.
 * CommandLine ist pro-only (im simple-Modus versteckt).
 */
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { render, screen, fireEvent, cleanup } from '@testing-library/react';
import {
  getUIMode, setUIMode, subscribeUIMode, UIMode,
} from '../src/services/uiModeService';

afterEach(cleanup);

// ─── uiModeService ────────────────────────────────────────

describe('H1: uiModeService', () => {
  beforeEach(() => {
    localStorage.clear();
  });

  it('Default ist pro (Vollständige Werkzeugpalette)', () => {
    expect(getUIMode()).toBe('pro');
  });

  it('setUIMode simple persistiert in localStorage', () => {
    setUIMode('simple');
    expect(getUIMode()).toBe('simple');
    expect(localStorage.getItem('webcad.uiMode')).toBe('simple');
  });

  it('Persistiert über Reload hinweg (localStorage gesetzt vor erstem get)', () => {
    localStorage.setItem('webcad.uiMode', 'simple');
    expect(getUIMode()).toBe('simple');
  });

  it('subscribeUIMode feuert bei Wechsel und unsubscribed korrekt', () => {
    const cb = vi.fn();
    const off = subscribeUIMode(cb);
    setUIMode('simple');
    expect(cb).toHaveBeenCalledWith('simple');
    setUIMode('pro');
    expect(cb).toHaveBeenCalledWith('pro');
    off();
    cb.mockClear();
    setUIMode('simple');
    expect(cb).not.toHaveBeenCalled();
    // Aufräumen für weitere Tests
    setUIMode('pro');
  });

  it('ungültiger localStorage-Wert fällt auf pro zurück', () => {
    localStorage.setItem('webcad.uiMode', 'gibts-nicht');
    expect(getUIMode()).toBe('pro');
  });
});

// ─── RibbonBar simple-Filter ─────────────────────────────

describe('H1: RibbonBar simple-Filter', () => {
  beforeEach(() => {
    localStorage.clear();
    setUIMode('pro');
  });

  it('pro-Modus: alle V2-Tools sichtbar (basic + pro-Tags)', async () => {
    const { registerBuiltinPlugins, pluginRegistry } = await import('../src/plugins');
    registerBuiltinPlugins();
    pluginRegistry.initDefaults();
    const RibbonBar = (await import('../src/components/RibbonBar')).default;
    render(<RibbonBar activeTab="canvas" onTabChange={() => {}} onAction={() => {}} />);
    const all = screen.getAllByRole('button').length;
    expect(all).toBeGreaterThan(10);
    cleanup();
    setUIMode('simple');
    render(<RibbonBar activeTab="canvas" onTabChange={() => {}} onAction={() => {}} />);
    const simpleCount = screen.getAllByRole('button').length;
    expect(simpleCount).toBeLessThan(all);
    expect(simpleCount).toBeGreaterThan(0);
  });

  it('simple-Modus: pro-Tools (rotate/scale/mirror) fehlen, basic (line) bleibt', async () => {
    localStorage.clear();
    setUIMode('simple');
    const { registerBuiltinPlugins, pluginRegistry } = await import('../src/plugins');
    registerBuiltinPlugins();
    pluginRegistry.initDefaults();
    const RibbonBar = (await import('../src/components/RibbonBar')).default;
    render(<RibbonBar activeTab="canvas" onTabChange={() => {}} onAction={() => {}} />);
    const html = document.body.innerHTML;
    expect(html).toContain('data-v2tool="line"');
    expect(html).not.toContain('data-v2tool="rotate"');
    expect(html).not.toContain('data-v2tool="mirror"');
  });

  it('CommandLine-Komponente: pro-only rendering via useUIMode', async () => {
    const { useUIMode } = await import('../src/services/uiModeService');
    const CommandLine = (await import('../src/components/CommandLine')).default;
    setUIMode('pro');
    const { container: proContainer } = render(<CommandLine history={[]} onCommand={() => {}} />);
    expect(proContainer.querySelector('.cmdline')).toBeTruthy();
    cleanup();
    setUIMode('simple');
    const { container: simpleContainer } = render(<CommandLine history={[]} onCommand={() => {}} />);
    expect(simpleContainer.querySelector('.cmdline')).toBeFalsy();
  });

  it('Topbar-Toggle wechselt Mode', async () => {
    const Topbar = (await import('../src/components/Topbar')).default;
    setUIMode('pro');
    render(<Topbar projectName="Testprojekt" savedStatus="Gespeichert" onUndo={() => {}} onRedo={() => {}} onThemeToggle={() => {}} theme="dark" />);
    const btn = screen.getByTitle(/Modus.*wechseln|Einfach.*Modus|Profi-Modus/i);
    fireEvent.click(btn);
    expect(getUIMode()).toBe('simple');
  });
});