import { render, screen, waitFor, fireEvent } from '@testing-library/react';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import { vi, describe, it, expect, beforeEach } from 'vitest';
import { useRouter, usePathname, useSearchParams } from 'next/navigation';
import { ActivityClient } from '../activity-client';

vi.mock('next/navigation', () => ({
  useRouter: vi.fn(),
  usePathname: vi.fn(() => '/admin/activity'),
  useSearchParams: vi.fn(),
}));

const listMock = vi.fn();
vi.mock('@/lib/api', () => ({
  api: { admin: { listActivity: (...a: unknown[]) => listMock(...a) } },
}));

function wrap(node: React.ReactNode) {
  const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  return <QueryClientProvider client={qc}>{node}</QueryClientProvider>;
}

const row = {
  id: 42,
  event: 'dispute.adjudicate',
  actor: { id: 'u1', name: 'Alice' },
  subject: { type: 'Dispute', id: 'abc12345' },
  properties: { outcome: 'accepted', justification: 'Buyer evidence is conclusive — refund both stores.' },
  created_at: '2026-05-04T00:00:00Z',
};

describe('ActivityClient', () => {
  const replace = vi.fn();
  let currentParams = new URLSearchParams('');

  beforeEach(() => {
    listMock.mockReset();
    replace.mockReset();
    currentParams = new URLSearchParams('');
    vi.mocked(useRouter).mockReturnValue({
      replace: (url: string) => {
        replace(url);
        const qs = url.split('?')[1] ?? '';
        currentParams = new URLSearchParams(qs);
      },
      push: vi.fn(), back: vi.fn(), forward: vi.fn(), refresh: vi.fn(), prefetch: vi.fn(),
    } as unknown as ReturnType<typeof useRouter>);
    vi.mocked(useSearchParams).mockImplementation(
      () => currentParams as unknown as ReturnType<typeof useSearchParams>,
    );
    vi.mocked(usePathname).mockReturnValue('/admin/activity');
  });

  it('renders rows with actor + action + subject', async () => {
    listMock.mockResolvedValue({
      data: [row],
      meta: { current_page: 1, last_page: 1, total: 1, per_page: 25 },
    });
    render(wrap(<ActivityClient />));
    await waitFor(() => expect(screen.getByText('Alice')).toBeInTheDocument());
    expect(screen.getByText('dispute.adjudicate')).toBeInTheDocument();
    expect(screen.getByText(/Buyer evidence is conclusive/)).toBeInTheDocument();
  });

  it('subject-type filter writes to URL and re-queries', async () => {
    listMock.mockResolvedValue({
      data: [],
      meta: { current_page: 1, last_page: 1, total: 0, per_page: 25 },
    });
    const { rerender } = render(wrap(<ActivityClient />));
    fireEvent.click(screen.getByRole('button', { name: 'Order' }));
    expect(replace).toHaveBeenCalledWith('/admin/activity?subject_type=Order');

    rerender(wrap(<ActivityClient />));
    await waitFor(() => {
      const lastArgs = listMock.mock.calls[listMock.mock.calls.length - 1][0];
      expect(lastArgs.subject_type).toBe('Order');
    });
  });

  it('clicking a row reveals the full properties JSON', async () => {
    listMock.mockResolvedValue({
      data: [row],
      meta: { current_page: 1, last_page: 1, total: 1, per_page: 25 },
    });
    render(wrap(<ActivityClient />));
    await waitFor(() => expect(screen.getByText('Alice')).toBeInTheDocument());
    fireEvent.click(screen.getByText('Alice'));
    expect(screen.getByText(/"outcome": "accepted"/)).toBeInTheDocument();
  });

  it('Review subject-type pill writes subject_type=Review to the URL and the API call', async () => {
    listMock.mockResolvedValue({
      data: [],
      meta: { current_page: 1, last_page: 1, total: 0, per_page: 25 },
    });
    const { rerender } = render(wrap(<ActivityClient />));
    fireEvent.click(screen.getByRole('button', { name: 'Review' }));
    expect(replace).toHaveBeenCalledWith('/admin/activity?subject_type=Review');

    rerender(wrap(<ActivityClient />));
    await waitFor(() => {
      const lastArgs = listMock.mock.calls[listMock.mock.calls.length - 1][0];
      expect(lastArgs.subject_type).toBe('Review');
    });
  });

  it('ReviewReport subject-type pill writes subject_type=ReviewReport to the URL and the API call', async () => {
    listMock.mockResolvedValue({
      data: [],
      meta: { current_page: 1, last_page: 1, total: 0, per_page: 25 },
    });
    const { rerender } = render(wrap(<ActivityClient />));
    fireEvent.click(screen.getByRole('button', { name: 'ReviewReport' }));
    expect(replace).toHaveBeenCalledWith('/admin/activity?subject_type=ReviewReport');

    rerender(wrap(<ActivityClient />));
    await waitFor(() => {
      const lastArgs = listMock.mock.calls[listMock.mock.calls.length - 1][0];
      expect(lastArgs.subject_type).toBe('ReviewReport');
    });
  });

  it('event-prefix pill writes event_prefix=review. to the URL and the API call', async () => {
    listMock.mockResolvedValue({
      data: [],
      meta: { current_page: 1, last_page: 1, total: 0, per_page: 25 },
    });
    const { rerender } = render(wrap(<ActivityClient />));
    fireEvent.click(screen.getByRole('button', { name: 'Review events' }));
    expect(replace).toHaveBeenCalledWith('/admin/activity?event_prefix=review.');

    rerender(wrap(<ActivityClient />));
    await waitFor(() => {
      const lastArgs = listMock.mock.calls[listMock.mock.calls.length - 1][0];
      expect(lastArgs.event_prefix).toBe('review.');
    });
  });
});