import React from 'react';
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { act, render, screen } from '@testing-library/react';
import { MemoryRouter } from 'react-router-dom';

vi.mock('react-i18next', () => ({
  useTranslation: () => ({ t: (key: string, fallback?: string) => fallback ?? key, i18n: { language: 'en-GB' } }),
}));

vi.mock('@tamagui/core', () => ({
  useTheme: () => ({
    background: { val: '#FFF8F5' },
    surface: { val: '#ffffff' },
    borderColor: { val: '#e5e7eb' },
    color: { val: '#1f2937' },
    gray: { val: '#6b7280' },
    red10: { val: '#b91c1c' },
    shadowColor: { val: 'rgba(0,0,0,0.12)' },
    primary: { val: '#FF5A5F' },
  }),
}));

vi.mock('@tamagui/stacks', () => ({
  YStack: ({ children, ...props }: { children: React.ReactNode }) => <div {...props}>{children}</div>,
  XStack: ({ children, ...props }: { children: React.ReactNode }) => <div {...props}>{children}</div>,
}));

vi.mock('@tamagui/text', () => ({
  SizableText: ({ children, ...props }: { children: React.ReactNode }) => <span {...props}>{children}</span>,
}));

vi.mock('@tamagui/react-native-web-lite', () => ({
  Pressable: ({ children, onPress, ...props }: { children: React.ReactNode; onPress?: () => void }) => (
    <button type="button" onClick={onPress} {...props}>
      {children}
    </button>
  ),
}));

vi.mock('../BottomNav', () => ({
  BottomNav: () => <div data-testid="bottom-nav" />,
  NavKey: {},
}));

const eventContext = {
  events: [],
  activeEvent: { slug: 'event-1', name: 'Test Event', event_date: '2024-01-01', status: 'active', settings: {} },
  hasMultipleEvents: false,
  hasEvents: true,
  selectEvent: vi.fn(),
};

vi.mock('../../../context/EventContext', () => ({
  useEventContext: () => eventContext,
}));

vi.mock('../../../auth/context', () => ({
  useAuth: () => ({ user: { role: 'tenant_admin' } }),
}));

vi.mock('../../hooks/useMobileNav', () => ({
  useMobileNav: () => ({ go: vi.fn(), slug: 'event-1' }),
}));

vi.mock('../../hooks/useNotificationsBadge', () => ({
  useNotificationsBadge: () => ({ count: 0 }),
}));

vi.mock('../../hooks/useOnlineStatus', () => ({
  useOnlineStatus: () => true,
}));

vi.mock('../../../api', () => ({
  getEvents: vi.fn().mockResolvedValue([]),
}));

vi.mock('../../lib/tabHistory', () => ({
  setTabHistory: vi.fn(),
}));

vi.mock('../../lib/photoModerationQueue', () => ({
  loadPhotoQueue: vi.fn(() => []),
}));

vi.mock('../../lib/queueStatus', () => ({
  countQueuedPhotoActions: vi.fn(() => 0),
}));

vi.mock('../../theme', () => ({
  useAdminTheme: () => ({
    background: '#FFF8F5',
    surface: '#ffffff',
    border: '#e5e7eb',
    text: '#1f2937',
    muted: '#6b7280',
    warningBg: '#fff7ed',
    warningText: '#92400e',
    primary: '#FF5A5F',
    danger: '#b91c1c',
    shadow: 'rgba(0,0,0,0.12)',
    glassSurface: 'rgba(255,255,255,0.8)',
    glassSurfaceStrong: 'rgba(255,255,255,0.9)',
    glassBorder: 'rgba(229,231,235,0.7)',
    glassShadow: 'rgba(15,23,42,0.14)',
    appBackground: 'linear-gradient(180deg, #f7fafc, #eef3f7)',
  }),
}));

import { MobileShell } from '../MobileShell';
import { ADMIN_EVENTS_PATH } from '../../../constants';

describe('MobileShell', () => {
  beforeEach(() => {
    window.matchMedia = vi.fn().mockReturnValue({
      matches: false,
      addEventListener: vi.fn(),
      removeEventListener: vi.fn(),
    });
    eventContext.events = [];
    eventContext.hasMultipleEvents = false;
    eventContext.activeEvent = { slug: 'event-1', name: 'Test Event', event_date: '2024-01-01', status: 'active', settings: {} };
  });

  it('renders quick QR as icon-only button', async () => {
    await act(async () => {
      render(
        <MemoryRouter>
          <MobileShell activeTab="home">
            <div>Body</div>
          </MobileShell>
        </MemoryRouter>
      );
    });

    expect(screen.getByLabelText('Quick QR')).toBeInTheDocument();
    expect(screen.queryByText('Quick QR')).not.toBeInTheDocument();
  });

  it('hides the event context on compact headers', async () => {
    window.matchMedia = vi.fn().mockReturnValue({
      matches: true,
      addEventListener: vi.fn(),
      removeEventListener: vi.fn(),
    });

    await act(async () => {
      render(
        <MemoryRouter>
          <MobileShell activeTab="home">
            <div>Body</div>
          </MobileShell>
        </MemoryRouter>
      );
    });

    expect(screen.queryByText('Test Event')).not.toBeInTheDocument();
  });

  it('shows the event switcher when multiple events are available', async () => {
    eventContext.hasMultipleEvents = true;
    eventContext.events = [
      { slug: 'event-1', name: 'Test Event', event_date: '2024-01-01', status: 'active', settings: {} },
      { slug: 'event-2', name: 'Second Event', event_date: '2024-02-01', status: 'active', settings: {} },
    ];

    await act(async () => {
      render(
        <MemoryRouter>
          <MobileShell activeTab="home">
            <div>Body</div>
          </MobileShell>
        </MemoryRouter>
      );
    });

    expect(screen.getByLabelText('Switch event')).toBeInTheDocument();
  });

  it('hides the event switcher on the events list page', async () => {
    eventContext.hasMultipleEvents = true;
    eventContext.events = [
      { slug: 'event-1', name: 'Test Event', event_date: '2024-01-01', status: 'active', settings: {} },
      { slug: 'event-2', name: 'Second Event', event_date: '2024-02-01', status: 'active', settings: {} },
    ];

    await act(async () => {
      render(
        <MemoryRouter initialEntries={[ADMIN_EVENTS_PATH]}>
          <MobileShell activeTab="home">
            <div>Body</div>
          </MobileShell>
        </MemoryRouter>
      );
    });

    expect(screen.queryByLabelText('Switch event')).not.toBeInTheDocument();
  });
});
