import { describe, it, expect, vi, beforeEach } from 'vitest';
import { render, screen, fireEvent, waitFor } from '@testing-library/svelte';
import {{component}} from './{{component}}.svelte';

/*
 * Test Template for Vitest Component Tests
 * 
 * Copy this file and replace:
 * - {{component}} with the Svelte component name
 * - {{capability}} with the capability name
 * 
 * Mark pending tests with test.skip() during Red Phase
 * Remove .skip and implement during Green Phase
 */

describe('{{component}}', () => {
  
  beforeEach(() => {
    // Reset mocks and state
    vi.clearAllMocks();
  });
  
  /*
   * Test: Component renders correctly
   */
  it.skip('renders with default props', () => {
    const { container } = render({{component}});
    
    expect(container.querySelector('[data-testid="{{component}}"]')).toBeInTheDocument();
  });
  
  /*
   * Test: Component displays data correctly
   */
  it.skip('displays {{data_type}} data', () => {
    const mockData = {
      id: '123',
      name: 'Test Name',
      value: 100
    };
    
    render({{component}}, { props: { data: mockData } });
    
    expect(screen.getByText('Test Name')).toBeInTheDocument();
    expect(screen.getByText('100')).toBeInTheDocument();
  });
  
  /*
   * Test: User interaction
   */
  it.skip('handles {{action}} click', async () => {
    const mockHandler = vi.fn();
    
    render({{component}}, { 
      props: { 
        on{{action}}: mockHandler 
      } 
    });
    
    const button = screen.getByTestId('{{action}}-button');
    await fireEvent.click(button);
    
    expect(mockHandler).toHaveBeenCalledTimes(1);
  });
  
  /*
   * Test: Form submission
   */
  it.skip('submits form with correct data', async () => {
    const mockSubmit = vi.fn();
    
    render({{component}}, { 
      props: { 
        onSubmit: mockSubmit 
      } 
    });
    
    // Fill form
    await fireEvent.input(screen.getByLabelText('Name'), {
      target: { value: 'Test Name' }
    });
    
    await fireEvent.input(screen.getByLabelText('Email'), {
      target: { value: 'test@example.com' }
    });
    
    // Submit
    await fireEvent.click(screen.getByText('Submit'));
    
    await waitFor(() => {
      expect(mockSubmit).toHaveBeenCalledWith({
        name: 'Test Name',
        email: 'test@example.com'
      });
    });
  });
  
  /*
   * Test: Validation errors
   */
  it.skip('displays validation errors', async () => {
    render({{component}});
    
    // Submit empty form
    await fireEvent.click(screen.getByText('Submit'));
    
    await waitFor(() => {
      expect(screen.getByText('Name is required')).toBeInTheDocument();
      expect(screen.getByText('Email is required')).toBeInTheDocument();
    });
  });
  
  /*
   * Test: Loading state
   */
  it.skip('shows loading state', () => {
    render({{component}}, { 
      props: { 
        loading: true 
      } 
    });
    
    expect(screen.getByTestId('loading-spinner')).toBeInTheDocument();
  });
  
  /*
   * Test: Empty state
   */
  it.skip('displays empty state when no data', () => {
    render({{component}}, { 
      props: { 
        data: [] 
      } 
    });
    
    expect(screen.getByText('No data available')).toBeInTheDocument();
  });
  
  /*
   * Test: Error state
   */
  it.skip('displays error message', () => {
    render({{component}}, { 
      props: { 
        error: 'Failed to load data' 
      } 
    });
    
    expect(screen.getByText('Failed to load data')).toBeInTheDocument();
  });
  
  /*
   * Test: Accessibility
   */
  it.skip('has accessible attributes', () => {
    render({{component}});
    
    const element = screen.getByRole('button');
    expect(element).toHaveAttribute('aria-label');
  });
  
});

/*
 * Helper functions
 */
function createMock{{model}}(overrides = {}) {
  return {
    id: '123',
    name: 'Test {{model}}',
    createdAt: new Date().toISOString(),
    ...overrides
  };
}
