import { beforeEach, describe, expect, it, vi } from 'vitest';

vi.mock('../../lib/pricing/pricing-service.js', () => ({
  getCardPricing: vi.fn(),
}));

import { getCardPricing } from '../../lib/pricing/pricing-service.js';
import handler from '../../pages/api/cards/[id]/pricing.js';

function createRes() {
  const res = {
    statusCode: 200,
    body: null,
    status(code) {
      res.statusCode = code;
      return res;
    },
    json(data) {
      res.body = data;
      return res;
    },
  };
  return res;
}

describe('GET /api/cards/[id]/pricing', () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  it('returns 400 for invalid card id', async () => {
    const req = { method: 'GET', query: { id: 'abc' } };
    const res = createRes();

    await handler(req, res);

    expect(res.statusCode).toBe(400);
    expect(getCardPricing).not.toHaveBeenCalled();
  });

  it('returns 404 when card is missing', async () => {
    getCardPricing.mockResolvedValue(null);
    const req = { method: 'GET', query: { id: '99' } };
    const res = createRes();

    await handler(req, res);

    expect(res.statusCode).toBe(404);
  });

  it('returns pricing payload with staleness metadata', async () => {
    getCardPricing.mockResolvedValue({
      prices: { current: 1.25, market: 2.5, currency: 'USD' },
      pricesUpdatedAt: '2026-01-01T00:00:00.000Z',
      stale: true,
      outbound: {
        tcgplayer: 'https://tcgplayer.example',
        ebay: 'https://ebay.example',
      },
    });

    const req = { method: 'GET', query: { id: '42' } };
    const res = createRes();

    await handler(req, res);

    expect(res.statusCode).toBe(200);
    expect(res.body.stale).toBe(true);
    expect(res.body.prices.current).toBe(1.25);
    expect(res.body.outbound.tcgplayer).toContain('tcgplayer');
  });
});