import { describe, expect, it } from 'vitest';
import meta from './meta.json' with { type: 'json' };
import { localMeta } from '../../api/_lib/local-meta.js';
import { loadFixture, runFixtureSuite } from '@rareindex/connectors/testing';
import createConnector, { certFromUrl, certUrl, splitCert } from './index.js';
import { ccgClassify, ccgParse } from '../_g2-grading-lib/ccg.js';

const connector = createConnector(localMeta(meta));
const snapshotOf = (name: string) => (loadFixture('ngc-cert', name).raw.payload as { snapshot: string }).snapshot;

describe('ngc-cert', () => {
  runFixtureSuite(connector, it, expect);

  it('builds and recognises NGC cert URLs (grade segment required)', () => {
    expect(splitCert('4627835-016/61')).toEqual({ number: '4627835-016', grade: '61' });
    expect(splitCert('4627835-016 61')).toEqual({ number: '4627835-016', grade: '61' });
    expect(splitCert('8444762-003:NGCDetails')).toEqual({ number: '8444762-003', grade: 'NGCDetails' });
    expect(splitCert('4627835-016')).toEqual({ number: '4627835-016', grade: null });
    expect(certUrl('4627835-016/61')).toBe('https://www.ngccoin.com/certlookup/4627835-016/61/');
    expect(certUrl('4627835-016')).toBe('https://www.ngccoin.com/certlookup/4627835-016/');
    expect(certFromUrl('https://www.ngccoin.com/certlookup/4627835-016/61/')).toBe('4627835-016/61');
    expect(certFromUrl('https://www.ngccoin.com/certlookup/8444762-003/NGCDetails/')).toBe('8444762-003/NGCDetails');
    expect(certFromUrl('https://www.ngccoin.uk/certlookup/4627835-016/61')).toBe('4627835-016/61');
    expect(certFromUrl('https://www.ngccoin.com/population-report/')).toBeNull();
    expect(connector.urlPatterns.some((re) => re.test(certUrl('4627835-016/61')))).toBe(true);
    expect(connector.certIdentifier('4627835-016/61')).toBe('4627835-016');
  });

  it('parses description, grade, label, price guide and population stats', () => {
    const page = ccgParse(snapshotOf('draped-bust-eagle-ms61'));
    expect(page.fields).toMatchObject({ 'Cert #': '4627835-016', Description: '1795 13 LEAVES $10', Grade: 'MS 61', 'Grade Date': '2018-08-29', Label: 'NGC Standard Brown' });
    expect(page.atGrade).toBe(7);
    expect(page.popGradeKey).toBe('MS 61');
    expect(page.stats.some((s) => /^\$[\d,]+/.test(s))).toBe(true);
    expect(page.images.length).toBeGreaterThanOrEqual(2);
    expect(ccgClassify(snapshotOf('draped-bust-eagle-ms61'))).toBe('found');
  });

  it('normalises to a coins catalog_item (bare cert identifier) + population_report', async () => {
    const out = await connector.normalize(loadFixture('ngc-cert', 'draped-bust-eagle-ms61').raw);
    const item = out.find((r) => r.kind === 'catalog_item');
    const pop = out.find((r) => r.kind === 'population_report');
    if (item?.kind === 'catalog_item') {
      expect(item.rawTitle).toBe('1795 13 LEAVES $10 NGC MS 61');
      expect(item.attributes).toMatchObject({ categorySlug: 'coins', name: '1795 13 LEAVES $10', year: 1795 });
      expect(item.attributes.identifiers).toEqual({ ngc_cert: '4627835-016' });
      expect(item.grade).toEqual({ grader: 'ngc', grade: 'MS61', qualifier: null, certificationNumber: '4627835-016' });
      expect(item.externalId).toBe('ngc:4627835-016');
      expect(item.attributes.metadata.ngc_price_guide_value_usd).toBe(165000);
    } else throw new Error('catalog_item missing');
    if (pop?.kind === 'population_report') {
      expect(pop.byGrade.MS61).toBe(7);
      expect(pop.sourceUrl).toMatch(/population-report/);
    } else throw new Error('population_report missing');
  });

  it('handles an NGC Details grade (no numeric grade)', async () => {
    const out = await connector.normalize(loadFixture('ngc-cert', 'capped-bust-half-details').raw);
    const item = out.find((r) => r.kind === 'catalog_item');
    if (item?.kind === 'catalog_item') {
      expect(item.grade.grade).toBe('AU');
      expect(item.grade.qualifier).toMatch(/^Details/);
      expect(item.grade.certificationNumber).toBe('8444762-003');
      expect(item.attributes.year).toBe(1839);
    } else throw new Error('catalog_item missing');
  });

  it('yields zero records for a not-found cert without throwing', async () => {
    const fx = loadFixture('ngc-cert', 'not-found');
    expect(ccgClassify((fx.raw.payload as { snapshot: string }).snapshot)).toBe('not_found');
    await expect(connector.normalize(fx.raw)).resolves.toEqual([]);
  });
});