// @ts-nocheck
import { describe, it, expect, jest } from '@jest/globals';
import { render, screen, act } from '@testing-library/react';
import '@testing-library/jest-dom';
import { LoadingState, Spinner, PageLoader } from './loading-state';

// ─── Mocks ───────────────────────────────────────────────────────────────

jest.mock('framer-motion', () => ({
  motion: {
    div: ({ children, className, ...props }: any) => (
      <div className={className} {...props}>{children}</div>
    ),
  },
}));

jest.mock('@/components/ui/skeleton', () => ({
  Skeleton: ({ className }: any) => <div className={className} data-testid="skeleton" />,
  SkeletonHero: () => <div data-testid="skeleton-hero" />,
  SkeletonList: ({ items }: any) => <div data-testid="skeleton-list" data-items={items} />,
  SkeletonCard: () => <div data-testid="skeleton-card" />,
  SkeletonForm: ({ fields }: any) => <div data-testid="skeleton-form" data-fields={fields} />,
}));

// ─── Tests ───────────────────────────────────────────────────────────────

describe('Spinner', () => {
  it('should render with default size', () => {
    render(<Spinner />);
    const svg = document.querySelector('svg');
    expect(svg).toBeInTheDocument();
    expect(svg).toHaveAttribute('role', 'status');
  });

  it('should render with small size', () => {
    render(<Spinner size="sm" />);
    const svg = document.querySelector('svg');
    expect(svg?.getAttribute('class')).toContain('w-4');
  });

  it('should render with large size', () => {
    render(<Spinner size="lg" />);
    const svg = document.querySelector('svg');
    expect(svg?.getAttribute('class')).toContain('w-12');
  });

  it('should apply custom className', () => {
    render(<Spinner className="custom-spinner" />);
    const svg = document.querySelector('svg');
    expect(svg?.getAttribute('class')).toContain('custom-spinner');
  });
});

describe('PageLoader', () => {
  it('should render when loading', () => {
    render(<PageLoader isLoading={true} />);
    expect(screen.getByText('正在加载...')).toBeInTheDocument();
    expect(screen.getByRole('alertdialog')).toBeInTheDocument();
  });

  it('should render custom message', () => {
    render(<PageLoader isLoading={true} message="请稍候..." />);
    expect(screen.getByText('请稍候...')).toBeInTheDocument();
  });

  it('should not render when not loading', () => {
    const { container } = render(<PageLoader isLoading={false} />);
    expect(container.innerHTML).toBe('');
  });
});

describe('LoadingState', () => {
  beforeEach(() => {
    jest.useFakeTimers();
  });

  afterEach(() => {
    jest.useRealTimers();
  });

  it('should render children when not loading', () => {
    render(
      <LoadingState isLoading={false}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );
    expect(screen.getByTestId('content')).toBeInTheDocument();
  });

  it('should show skeleton after delay when loading', () => {
    // Mount as not loading first, then switch to loading
    const { rerender } = render(
      <LoadingState isLoading={false}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );
    expect(screen.getByTestId('content')).toBeInTheDocument();

    rerender(
      <LoadingState isLoading={true}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );
    // Before delay, skeleton should not be shown
    expect(screen.queryByRole('status')).not.toBeInTheDocument();

    // After delay, skeleton should appear
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();
  });

  it('should render hero variant skeleton', () => {
    const { rerender } = render(
      <LoadingState isLoading={false} variant="hero">
        <div>Content</div>
      </LoadingState>
    );
    rerender(
      <LoadingState isLoading={true} variant="hero">
        <div>Content</div>
      </LoadingState>
    );
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();
    expect(screen.getByTestId('skeleton-hero')).toBeInTheDocument();
  });

  it('should render list variant skeleton', () => {
    const { rerender } = render(
      <LoadingState isLoading={false} variant="list">
        <div>Content</div>
      </LoadingState>
    );
    rerender(
      <LoadingState isLoading={true} variant="list">
        <div>Content</div>
      </LoadingState>
    );
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();
    expect(screen.getByTestId('skeleton-list')).toBeInTheDocument();
  });

  it('should render card variant skeleton', () => {
    const { rerender } = render(
      <LoadingState isLoading={false} variant="card">
        <div>Content</div>
      </LoadingState>
    );
    rerender(
      <LoadingState isLoading={true} variant="card">
        <div>Content</div>
      </LoadingState>
    );
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();
  });

  it('should render form variant skeleton', () => {
    const { rerender } = render(
      <LoadingState isLoading={false} variant="form">
        <div>Content</div>
      </LoadingState>
    );
    rerender(
      <LoadingState isLoading={true} variant="form">
        <div>Content</div>
      </LoadingState>
    );
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();
    expect(screen.getByTestId('skeleton-form')).toBeInTheDocument();
  });

  it('should render children when loading stops', () => {
    const { rerender } = render(
      <LoadingState isLoading={false}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );

    rerender(
      <LoadingState isLoading={true}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );
    act(() => {
      jest.advanceTimersByTime(150);
    });
    expect(screen.getByRole('status')).toBeInTheDocument();

    rerender(
      <LoadingState isLoading={false}>
        <div data-testid="content">Content</div>
      </LoadingState>
    );
    expect(screen.getByTestId('content')).toBeInTheDocument();
  });
});