import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { screen, waitFor, fireEvent } from '@testing-library/react';
import MockAdapter from 'axios-mock-adapter';
import { apiClient } from '@/api/client';
import { ExecuteViaC2Modal } from '@/components/ExecuteViaC2Modal';
import { renderWithProviders } from '../utils';

vi.mock('@/hooks/useAuth', () => ({
  useAuth: () => ({
    user: { id: 1, username: 'alice', role: 'redteam', created_at: '2026-01-01' },
    status: 'authenticated',
    login: vi.fn(),
    logout: vi.fn(),
    isAdmin: false,
    isRedteam: true,
    isSoc: false,
    canEditEngagements: true,
  }),
}));

const CALLBACKS = [
  {
    display_id: 1,
    active: true,
    host: 'WIN-TARGET',
    user: 'administrator',
    domain: 'lab.local',
    last_checkin: '2026-06-10T10:00:00',
  },
  {
    display_id: 2,
    active: false,
    host: 'WIN-DC01',
    user: 'SYSTEM',
    domain: 'lab.local',
    last_checkin: '2026-06-10T09:00:00',
  },
];

let mock: MockAdapter;

beforeEach(() => {
  mock = new MockAdapter(apiClient);
  mock.onGet('/engagements/42/c2/callbacks').reply(200, { callbacks: CALLBACKS });
});

afterEach(() => {
  mock.restore();
  vi.clearAllMocks();
});

function renderModal(initialCommands = 'whoami\nipconfig') {
  const onClose = vi.fn();
  renderWithProviders(
    <ExecuteViaC2Modal
      simulationId={7}
      engagementId={42}
      initialCommands={initialCommands}
      onClose={onClose}
    />,
  );
  return { onClose };
}

describe('ExecuteViaC2Modal', () => {
  it('renders modal with title and callback table', async () => {
    renderModal();
    expect(screen.getByTestId('c2-modal')).toBeInTheDocument();
    expect(screen.getByText('Execute via C2')).toBeInTheDocument();
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
  });

  it('renders callback rows with mono data', async () => {
    renderModal();
    await waitFor(() => {
      expect(screen.getByText('WIN-TARGET')).toBeInTheDocument();
      expect(screen.getByText('WIN-DC01')).toBeInTheDocument();
      expect(screen.getByText('administrator')).toBeInTheDocument();
    });
  });

  it('Launch button is disabled before selecting a callback', async () => {
    renderModal();
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    expect(screen.getByTestId('c2-launch-btn')).toBeDisabled();
  });

  it('Launch button is disabled when commands are empty', async () => {
    renderModal('');
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    fireEvent.click(screen.getAllByTestId('c2-callback-row')[0]);
    expect(screen.getByTestId('c2-launch-btn')).toBeDisabled();
  });

  it('Launch button enabled after selecting row and having commands', async () => {
    renderModal('whoami');
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    fireEvent.click(screen.getAllByTestId('c2-callback-row')[0]);
    expect(screen.getByTestId('c2-launch-btn')).not.toBeDisabled();
  });

  it('calls executeC2 with correct body and closes modal on success', async () => {
    mock.onPost('/simulations/7/c2/execute').reply(200, {
      tasks: [
        { id: 1, mythic_task_display_id: 10, command: 'whoami', status: 'submitted', completed: false },
        { id: 2, mythic_task_display_id: 11, command: 'ipconfig', status: 'submitted', completed: false },
      ],
    });
    const { onClose } = renderModal('whoami\nipconfig');
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    fireEvent.click(screen.getAllByTestId('c2-callback-row')[0]);
    fireEvent.click(screen.getByTestId('c2-launch-btn'));
    await waitFor(() => {
      expect(onClose).toHaveBeenCalled();
    });
    const req = mock.history['post'][0];
    const body = JSON.parse(req.data as string);
    expect(body.callback_display_id).toBe(1);
    expect(body.commands).toEqual(['whoami', 'ipconfig']);
  });

  it('shows inline error and keeps modal open on executeC2 failure', async () => {
    mock.onPost('/simulations/7/c2/execute').reply(500, { error: 'Mythic unreachable' });
    const { onClose } = renderModal('whoami');
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    fireEvent.click(screen.getAllByTestId('c2-callback-row')[0]);
    fireEvent.click(screen.getByTestId('c2-launch-btn'));
    await waitFor(() => {
      expect(screen.getByText('Mythic unreachable')).toBeInTheDocument();
    });
    expect(onClose).not.toHaveBeenCalled();
  });

  it('Cancel button calls onClose', async () => {
    const { onClose } = renderModal();
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    fireEvent.click(screen.getByRole('button', { name: /cancel/i }));
    expect(onClose).toHaveBeenCalled();
  });

  it('prefills commands textarea from initialCommands', async () => {
    renderModal('net user\nwhoami /all');
    const textarea = screen.getByTestId('c2-commands-textarea') as HTMLTextAreaElement;
    expect(textarea.value).toBe('net user\nwhoami /all');
  });

  it('Enter key on callback row selects it (a11y)', async () => {
    renderModal('whoami');
    await waitFor(() => {
      expect(screen.getAllByTestId('c2-callback-row')).toHaveLength(2);
    });
    const firstRow = screen.getAllByTestId('c2-callback-row')[0];
    fireEvent.keyDown(firstRow, { key: 'Enter' });
    // Row is now selected → Launch button should be enabled
    expect(screen.getByTestId('c2-launch-btn')).not.toBeDisabled();
  });
});