/**
 * ProjectsGrid Component Tests
 */

import { render, screen, fireEvent } from '@testing-library/react';
import { ProjectsGrid } from '@/components/projects/ProjectsGrid';
import type { ProjectListItem } from '@/lib/api/hooks/useProjects';

// Mock next-intl navigation
jest.mock('@/lib/i18n/routing', () => ({
  Link: ({ children, href }: { children: React.ReactNode; href: string }) => (
    <a href={href}>{children}</a>
  ),
}));

describe('ProjectsGrid', () => {
  const mockProjects: ProjectListItem[] = [
    {
      id: 'proj-1',
      name: 'Project One',
      description: 'First project',
      status: 'active',
      complexity: 'medium',
      progress: 50,
      openIssues: 5,
      activeAgents: 2,
      lastActivity: '5 min ago',
      createdAt: '2025-01-01T00:00:00Z',
      owner: { id: 'user-1', name: 'User One' },
    },
    {
      id: 'proj-2',
      name: 'Project Two',
      description: 'Second project',
      status: 'paused',
      complexity: 'high',
      progress: 75,
      openIssues: 3,
      activeAgents: 0,
      lastActivity: '1 day ago',
      createdAt: '2025-01-02T00:00:00Z',
      owner: { id: 'user-2', name: 'User Two' },
    },
  ];

  it('renders project cards', () => {
    render(<ProjectsGrid projects={mockProjects} />);

    expect(screen.getByText('Project One')).toBeInTheDocument();
    expect(screen.getByText('Project Two')).toBeInTheDocument();
  });

  it('renders in grid layout by default', () => {
    const { container } = render(<ProjectsGrid projects={mockProjects} />);

    // Should have grid classes
    expect(container.firstChild).toHaveClass('grid');
  });

  it('renders in list layout when viewMode is list', () => {
    const { container } = render(<ProjectsGrid projects={mockProjects} viewMode="list" />);

    // Should have space-y-4 class for list view
    expect(container.firstChild).toHaveClass('space-y-4');
  });

  it('shows loading skeletons when isLoading is true', () => {
    const { container } = render(<ProjectsGrid projects={[]} isLoading />);

    // Should render skeleton cards
    expect(container.querySelectorAll('.animate-pulse').length).toBeGreaterThan(0);
  });

  it('shows empty state when no projects and no filters', () => {
    render(<ProjectsGrid projects={[]} hasFilters={false} />);

    expect(screen.getByText('No projects found')).toBeInTheDocument();
    expect(screen.getByText('Get started by creating your first project')).toBeInTheDocument();
    expect(screen.getByRole('link', { name: /Create Project/i })).toBeInTheDocument();
  });

  it('shows filter-adjusted empty state when no projects with filters', () => {
    render(<ProjectsGrid projects={[]} hasFilters={true} />);

    expect(screen.getByText('No projects found')).toBeInTheDocument();
    expect(screen.getByText('Try adjusting your filters or search query')).toBeInTheDocument();
  });

  it('calls onProjectClick when project card is clicked', () => {
    const onProjectClick = jest.fn();
    render(<ProjectsGrid projects={mockProjects} onProjectClick={onProjectClick} />);

    // Click on the first project card
    const projectCards = screen.getAllByRole('button');
    fireEvent.click(projectCards[0]);

    expect(onProjectClick).toHaveBeenCalledWith(mockProjects[0]);
  });

  it('applies custom className', () => {
    const { container } = render(
      <ProjectsGrid projects={mockProjects} className="custom-class" />
    );

    expect(container.firstChild).toHaveClass('custom-class');
  });
});