import { describe, it, expect, beforeEach, vi } from 'vitest';
import { screen, fireEvent } from '@testing-library/react';
import { Route, Routes } from 'react-router-dom';
import { renderWithProviders } from '../test/utils';

vi.mock('sonner', () => ({ toast: { info: vi.fn(), success: vi.fn(), error: vi.fn() } }));
vi.mock('../lib/api', () => ({ api: { get: vi.fn() }, ApiError: class extends Error {} }));

import { api } from '../lib/api';
import MyPaymentDetailPage from './MyPaymentDetailPage';

const get = api.get as ReturnType<typeof vi.fn>;

const PAYLOAD = {
  patient: { uuid: 'abc', name: 'دنیا خلیلی', national_code: '1744023654' },
  data: [
    { uuid: 'i1', number: 12345, issued_at: 1717000000, total_rials: 2350000, patient_rials: 2350000,
      paid_rials: 2350000, status: 'paid', service_title: 'روکش دندان',
      items: [{ uuid: 'it1', title: 'روکش دندان', quantity: 1, total_rials: 2350000, patient_rials: 2350000 }],
      payments: [
        { method: 'cash', amount_rials: 350000, paid_at: 1717000000, created_by_name: 'منشی' },
        { method: 'pos', amount_rials: 2000000, paid_at: 1717000500, created_by_name: null },
      ] },
    { uuid: 'i2', number: 52614, issued_at: 1718000000, total_rials: 6000000, patient_rials: 6000000,
      paid_rials: 0, status: 'unsettled', service_title: 'طرح لبخند', items: [], payments: [] },
    { uuid: 'i3', number: 52615, issued_at: 1719000000, total_rials: 1000000, patient_rials: 1000000,
      paid_rials: 400000, status: 'partial', service_title: 'جرم‌گیری', items: [],
      payments: [{ method: 'wallet', amount_rials: 400000, paid_at: 1719000000, created_by_name: null }] },
  ],
  summary: { total_rials: 8350000, paid_rials: 2350000, unsettled_rials: 6000000, invoices_count: 2 },
  meta: { totalRecords: 2, totalPages: 1, currentPage: 1 },
};

function renderPage() {
  return renderWithProviders(
    <Routes>
      <Route path="/admin/my-payments/:patientUuid" element={<MyPaymentDetailPage />} />
    </Routes>,
    { route: '/admin/my-payments/abc' },
  );
}

beforeEach(() => {
  get.mockReset();
  get.mockResolvedValue({ success: true, data: PAYLOAD });
});

describe('MyPaymentDetailPage (پرداخت‌های ثبت‌شده)', () => {
  it('renders the patient header and invoice rows', async () => {
    renderPage();
    // the name shows twice: breadcrumb + identity card
    expect(await screen.findAllByText('دنیا خلیلی')).toHaveLength(2);
    expect(screen.getByText(/1744023654/)).toBeInTheDocument();
    expect(screen.getByText('روکش دندان')).toBeInTheDocument();
    expect(screen.getByText('طرح لبخند')).toBeInTheDocument();
    expect(screen.getByText('پرداخت شده')).toBeInTheDocument();
    expect(screen.getByText('تسویه نشده')).toBeInTheDocument();
    expect(screen.getByText('پرداخت ناقص')).toBeInTheDocument();
    expect(screen.getByText(/پرداخت‌شده:/)).toBeInTheDocument();
  });

  it('renders the summary stat cards', async () => {
    renderPage();
    expect(await screen.findByText('مجموع صورتحساب‌ها')).toBeInTheDocument();
    expect(screen.getByText('پرداخت‌شده')).toBeInTheDocument();
    expect(screen.getByText('تسویه‌نشده')).toBeInTheDocument();
    expect(screen.getByText('تعداد صورتحساب')).toBeInTheDocument();
  });

  it('fetches invoices for the patient uuid from the route', async () => {
    renderPage();
    await screen.findAllByText('دنیا خلیلی');
    expect(get.mock.calls[0][0]).toContain('/api/v1/my/billing/patients/abc/invoices');
  });

  it('expands a row to show its line items and payment methods on بیشتر', async () => {
    renderPage();
    await screen.findByText('روکش دندان');
    fireEvent.click(screen.getAllByRole('button', { name: /بیشتر/ })[0]);

    // the item breakdown appears (title repeated inside the expanded sub-row)
    expect(await screen.findAllByText('روکش دندان')).toHaveLength(2);
    // and each payment shows its method in Persian
    expect(screen.getByText('روش‌های پرداخت')).toBeInTheDocument();
    expect(screen.getByText('نقدی')).toBeInTheDocument();
    expect(screen.getByText('کارتخوان')).toBeInTheDocument();
  });

  it('says so when an invoice has no recorded payment', async () => {
    renderPage();
    await screen.findByText('طرح لبخند');
    fireEvent.click(screen.getAllByRole('button', { name: /بیشتر/ })[1]);
    expect(await screen.findByText('پرداختی ثبت نشده است.')).toBeInTheDocument();
  });

  it('shows an empty state when the patient has no invoices', async () => {
    get.mockResolvedValue({
      success: true,
      data: {
        patient: PAYLOAD.patient,
        data: [],
        summary: { total_rials: 0, paid_rials: 0, unsettled_rials: 0, invoices_count: 0 },
        meta: { totalRecords: 0, totalPages: 0, currentPage: 1 },
      },
    });
    renderPage();
    expect(await screen.findByText('صورتحسابی ثبت نشده است.')).toBeInTheDocument();
  });
});
