import React from 'react';
import { render, screen, waitFor, fireEvent } from '@testing-library/react';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import { MemoryRouter, Route, Routes, useLocation } from 'react-router-dom';
import AgentOperationsBanner from '@/components/doormile/AgentOperationsBanner';
import * as scanModule from '@/lib/assistant/scan';
import { AgentFactory } from '@/lib/assistant/agent/AgentFactory';
import { SkillRegistry } from '@/lib/assistant/skills/SkillRegistry';

jest.mock('lucide-react', () =>
  new Proxy({}, { get: (_t, prop) => (prop === '__esModule' ? true : (props) => <span data-testid={`icon-${String(prop)}`} {...props} />) })
);
jest.mock('@/lib/assistant/scan');
jest.mock('@/lib/assistant/agent/AgentFactory');

const createTestQueryClient = () => new QueryClient({ defaultOptions: { queries: { retry: false } } });

function Where() {
  const loc = useLocation();
  return <div data-testid="where">{loc.pathname + loc.search}</div>;
}

const renderBanner = (props = {}) =>
  render(
    <QueryClientProvider client={createTestQueryClient()}>
      <MemoryRouter initialEntries={['/doormile/exceptions']}>
        <Routes>
          <Route path="*" element={<><AgentOperationsBanner {...props} /><Where /></>} />
        </Routes>
      </MemoryRouter>
    </QueryClientProvider>
  );

const SLA_FINDING = {
  id: 'sla_breached',
  skillId: 'skill_sla_guardian',
  severity: 'critical',
  title: '1 parcel is past the promised delivery time',
  why: 'Estimated delivery time has passed.',
  count: 1,
  rows: [{ bookingid: 101, bookingno: 'BK-101' }],
  detail: ['BK-101 — 35 min overdue'],
  proposal: {
    label: 'Notify the assigned riders',
    tool: 'notifyRider',
    scope: [{ bookingid: 101 }],
    blastRadius: 'Sends a message per rider.',
  },
};

describe('AgentOperationsBanner', () => {
  beforeEach(() => {
    jest.clearAllMocks();
    SkillRegistry.clearRegistryConfig();
  });

  it('says nothing is flagged, naming how many skills looked', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({ evaluateTelemetry: () => [] });
    renderBanner();

    await waitFor(() => {
      expect(screen.getByText(/Nothing flagged by the 5 enabled skills/i)).toBeInTheDocument();
    });
    expect(screen.getByRole('button', { name: /Configure skills/i })).toBeInTheDocument();
  });

  it('renders remediation cards when findings are detected', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [{ bookingid: 101 }], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({ evaluateTelemetry: () => [SLA_FINDING] });
    renderBanner({ title: 'Custom Title' });

    await waitFor(() => {
      expect(screen.getByText(/Custom Title/i)).toBeInTheDocument();
      expect(screen.getByText(/1 parcel is past the promised delivery time/i)).toBeInTheDocument();
    });
  });

  it('filters findings by category', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [{ bookingid: 101 }], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({
      evaluateTelemetry: () => [
        { ...SLA_FINDING, proposal: undefined },
        {
          id: 'rider_critical_battery',
          skillId: 'skill_rider_battery_safety', // category: rider_safety
          severity: 'warning',
          title: 'Rider battery critical',
          why: 'Low battery',
          count: 1,
          rows: [{ bookingid: 102 }],
        },
      ],
    });
    renderBanner({ category: 'rider_safety', title: 'Rider Safety Only' });

    await waitFor(() => {
      expect(screen.getByText(/Rider Safety Only/i)).toBeInTheDocument();
      expect(screen.getByText(/Rider battery critical/i)).toBeInTheDocument();
      expect(screen.queryByText(/1 parcel is past the promised delivery time/i)).toBeNull();
    });
  });

  // The branch opened a localStorage-only settings modal here. Settings now
  // live in the agent registry, edited on one page.
  it('"Configure skills" goes to Settings → Skills & Tools', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({ evaluateTelemetry: () => [] });
    renderBanner();

    fireEvent.click(await screen.findByRole('button', { name: /Configure skills/i }));
    expect(screen.getByTestId('where')).toHaveTextContent('/doormile/settings?tab=skills');
  });

  it('says when it is running on default thresholds, and stops once the registry answers', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({ evaluateTelemetry: () => [] });
    renderBanner();

    expect(await screen.findByText(/Running on default thresholds/i)).toBeInTheDocument();

    SkillRegistry.applyRegistryConfig([{ skillid: 'skill_sla_guardian', enabled: true, thresholds: {} }]);
    await waitFor(() => expect(screen.queryByText(/Running on default thresholds/i)).toBeNull());
  });

  it('never calls anything autonomous', async () => {
    scanModule.scanBookings.mockResolvedValue({ rows: [], truncated: false });
    AgentFactory.synthesizeDefaultAgent.mockReturnValue({ evaluateTelemetry: () => [SLA_FINDING] });
    renderBanner();
    await screen.findByText(/1 parcel is past the promised delivery time/i);
    expect(screen.queryByText(/autonomous/i)).toBeNull();
    expect(screen.queryByText(/self-healing/i)).toBeNull();
  });
});