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lib/trustedshops.js

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  1. // LEASH wallet-control — Trusted Shops merchant verification (advisory evidence).
  2. //
  3. // Answers one question across ALL Trusted Shops country sites: "does this merchant
  4. // show up on trustedshops.<tld>?" Two distinct things live in the TS ecosystem:
  5. // 1. MEMBER registry (buyer-protection members): REST API
  6. // GET {api}/shops.json?url=<host> → member entries + target market
  7. // GET {api}/shops/{tsId}/quality.json → rating/review evidence
  8. // Verified live 2026-09-25. Members only — a non-member shop 404s here.
  9. // 2. SHOP PROFILES on every country site (members AND non-members, e.g. digitec.ch,
  10. // which has a TS profile without being a member): every country domain
  11. // server-renders its shop search for GET /shops/?q=<query> and embeds the
  12. // results as JSON in the page's __NEXT_DATA__ script:
  13. // props.pageProps.shops = [{profileType, accountName, tsID, shopName, shopUrl,
  14. // averageRating, reviewCount, profileUrl}]
  15. // Country domains (owner-confirmed list): ch de at co.uk fr it es nl be pt pl eu.
  16. //
  17. // Guarantees (mirror the engine's design principles):
  18. // - Evidence only. "Not listed" is NEVER a fail or an uncertainty — many legitimate
  19. // shops are not on Trusted Shops at all. This module produces facts for the
  20. // decision grid; the engine alone decides what they mean.
  21. // - Degrades silently: total failure → listed:null with a reason; a single country
  22. // site failing is noted in search_errors and ignored.
  23. // - Fast by construction: bounded concurrency across the whole batch, per-request
  24. // deadlines the module enforces itself (AbortSignal alone never keeps the Node
  25. // event loop alive), 6 h TTL cache, in-flight de-duplication.
  26. // - Exact matches only: the country searches are fuzzy — a hit counts solely when
  27. // shopUrl/shopName equals the queried domain. Fuzzy near-misses never count.
  29. const MARKET_LABELS = {
  30. CHE: 'Switzerland (trustedshops.ch)', DEU: 'Germany (trustedshops.de)', AUT: 'Austria (trustedshops.at)',
  31. FRA: 'France (trustedshops.fr)', ITA: 'Italy (trustedshops.it)', ESP: 'Spain (trustedshops.es)',
  32. NLD: 'Netherlands (trustedshops.nl)', POL: 'Poland (trustedshops.pl)', GBR: 'UK (trustedshops.co.uk)',
  33. BEL: 'Belgium (trustedshops.be)', PRT: 'Portugal (trustedshops.pt)', EUO: 'EU / international (trustedshops.eu)',
  34. };
  36. // Where a member's target market is surfaced as a country-site listing.
  37. const MARKET_TLD = {
  38. CHE: 'ch', DEU: 'de', AUT: 'at', FRA: 'fr', ITA: 'it', ESP: 'es',
  39. NLD: 'nl', POL: 'pl', GBR: 'co.uk', BEL: 'be', PRT: 'pt', EUO: 'eu',
  40. };
  42. export function marketLabel(code) {
  43. return MARKET_LABELS[String(code || '').toUpperCase()] || (code ? `market ${code}` : 'unknown market');
  44. }
  46. /** Normalize any user/agent input to a bare hostname. Returns {domain} or null
  47. * when the input is not domain-like (then it is treated as a merchant NAME,
  48. * which Trusted Shops cannot be searched by — no domains are ever invented). */
  49. export function normalizeDomain(input) {
  50. if (typeof input !== 'string') return null;
  51. let s = input.trim();
  52. if (!s || /\s/.test(s.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0])) return null;
  53. if (!/^[a-z][a-z0-9+.-]*:\/\//i.test(s)) s = `http://${s}`;
  54. let u;
  55. try { u = new URL(s); } catch { return null; }
  56. const host = (u.hostname || '').toLowerCase();
  57. if (!host || !host.includes('.') || host === 'localhost' || /^\d{1,3}(\.\d{1,3}){3}$/.test(host)) return null;
  58. return { domain: host };
  59. }
  61. /** Pull one input — URL, bare domain, or {url|domain|name} — apart. */
  62. export function parseMerchantInput(input) {
  63. const raw = typeof input === 'string' ? input : (input?.url || input?.domain || input?.website || input?.merchant_url || null);
  64. const name = typeof input === 'object' && input ? (input.name || input.merchant_name || null) : null;
  65. const dom = normalizeDomain(raw);
  66. if (dom) return { domain: dom.domain, name: name || dom.domain };
  67. return { domain: null, name: name || (typeof input === 'string' ? input : null) || String(input) };
  68. }
  70. const stripWww = s => String(s || '').toLowerCase().trim().replace(/^www\./, '');
  72. // Domains that legitimately appear on fake-shops pages (CMS/CDN chrome) and must
  73. // never count as warnings. Only LABELED warnings ("Fake <type> <domain> <date>")
  74. // ever flag a merchant — precision over recall, a flag is a hard decline.
  75. const FAKE_SHOP_EXCLUDE = /(^|\.)(trustedshops|etrusted|hubspot|hsforms|hubfs|hsstatic|cloudflare|jsdelivr|unpkg|splide|webcomponents|google|gstatic|w3|schema|typekit)\./i;
  77. const DEFAULTS = {
  78. apiBase: 'https://api.trustedshops.com/rest/public/v2',
  79. countries: ['ch', 'de', 'at', 'co.uk', 'fr', 'it', 'es', 'nl', 'be', 'pt', 'pl', 'eu'],
  80. timeoutMs: 4000, // per HTTP request (REST + search pages)
  81. concurrency: 12, // max in-flight requests across a whole batch
  82. ttlMs: 6 * 60 * 60 * 1000, // cache entries live 6h; re-checked after that
  83. fakeShopTtlMs: 60 * 60 * 1000, // warning lists refresh hourly (they rotate)
  84. maxQualityLookups: 2, // member rating fetches per merchant
  85. maxShopsPerMerchant: 5,
  86. };
  88. export class TrustedShopsChecker {
  89. constructor(opts = {}) {
  90. this.o = { ...DEFAULTS, ...opts };
  91. if (process.env.TRUSTEDSHOPS_DOMAINS) {
  92. this.o.countries = process.env.TRUSTEDSHOPS_DOMAINS.split(',').map(s => s.trim()).filter(Boolean);
  93. }
  94. this.fetchImpl = this.o.fetchImpl || globalThis.fetch.bind(globalThis);
  95. this.cache = new Map(); // domain -> {at, result}
  96. this.inflight = new Map(); // domain -> Promise (de-dupe parallel checks)
  97. this.fakeShopCache = null; // {at, byDomain: Map<domain, entries[]>, totalWarnings, sitesChecked, errors}
  98. this.fakeShopInflight = null;
  99. this.stats = { lookups: 0, searchCalls: 0, qualityCalls: 0, fakeShopListFetches: 0, cacheHits: 0, errors: 0 };
  100. }
  102. /** Check many merchants concurrently. Returns {results, tookMs} — input order
  103. * preserved. Request-level parallelism (not merchant-level) is what the
  104. * concurrency cap bounds: every merchant fans out to 1 registry lookup +
  105. * N country searches, all funneled through the same semaphore. */
  106. async check(inputs) {
  107. const list = (Array.isArray(inputs) ? inputs : [inputs]).slice(0, 50);
  108. const t0 = Date.now();
  109. const results = await Promise.all(list.map(input => this.checkOne(input)));
  110. return { results, tookMs: Date.now() - t0 };
  111. }
  113. /** Check one merchant (by URL/domain; name-only resolves to "no domain"). */
  114. async checkOne(input) {
  115. const parsed = parseMerchantInput(input);
  116. const at = new Date().toISOString();
  117. if (!parsed.domain) {
  118. return { input, name: parsed.name, resolvedDomain: null, listed: null, shops: [], profiles: [], found_on: [], primary: null, reason: 'no domain supplied — Trusted Shops is verified by website, and no domain was invented from the name', checkedAt: at, fromCache: false };
  119. }
  120. const key = parsed.domain;
  121. const cached = this.cache.get(key);
  122. if (cached && Date.now() - cached.at < this.o.ttlMs) {
  123. this.stats.cacheHits++;
  124. return { ...cached.result, fromCache: true, checkedAt: new Date(cached.at).toISOString() };
  125. }
  126. const pending = this.inflight.get(key);
  127. if (pending) return { ...(await pending), fromCache: false };
  128. const p = this.#checkMerchant(key, input, at).finally(() => this.inflight.delete(key));
  129. this.inflight.set(key, p);
  130. return { ...(await p), fromCache: false };
  131. }
  133. /** Fetch + parse every country site's /fake-shops/ warning list (own TTL cache,
  134. * fetched once per TTL and shared by all merchants). */
  135. async #fakeShopData() {
  136. if (this.fakeShopCache && Date.now() - this.fakeShopCache.at < this.o.fakeShopTtlMs) return this.fakeShopCache;
  137. if (this.fakeShopInflight) return this.fakeShopInflight;
  138. this.fakeShopInflight = (async () => {
  139. const lists = await Promise.all(this.o.countries.map(tld =>
  140. this.#gate(() => this.#deadline(
  141. this.fetchImpl(`https://www.trustedshops.${tld}/fake-shops/`, { signal: AbortSignal.timeout(this.o.timeoutMs), headers: { accept: 'text/html' } }),
  142. this.o.timeoutMs, `fake-shops list .${tld}`,
  143. )).then(
  144. async res => {
  145. this.stats.fakeShopListFetches++;
  146. if (!res.ok) throw new Error(`HTTP ${res.status}`);
  147. return { tld, entries: this.#parseFakeShopWarnings(await res.text(), tld) };
  148. },
  149. err => ({ tld, error: err.message }),
  150. )));
  151. const byDomain = new Map();
  152. let totalWarnings = 0;
  153. const errors = [];
  154. let sitesChecked = 0;
  155. for (const l of lists) {
  156. if (l.entries) {
  157. sitesChecked++;
  158. totalWarnings += l.entries.length;
  159. for (const e of l.entries) {
  160. const arr = byDomain.get(e.domain) || [];
  161. arr.push({ site: `trustedshops.${l.tld}`, type: e.type, date: e.date });
  162. byDomain.set(e.domain, arr);
  163. }
  164. } else errors.push(`.${l.tld}: ${l.error}`);
  165. }
  166. this.fakeShopCache = { at: Date.now(), byDomain, totalWarnings, sitesChecked, errors };
  167. return this.fakeShopCache;
  168. })().finally(() => { this.fakeShopInflight = null; });
  169. return this.fakeShopInflight;
  170. }
  172. /** Extract LABELED warning entries ("Fake <type> <domain> <date>") from a
  173. * fake-shops page. Unlabeled domain-like strings never count — a hit here is
  174. * a hard decline, so precision beats recall. */
  175. #parseFakeShopWarnings(html, tld) {
  176. const text = html
  177. .replace(/<script[\s\S]*?<\/script>/gi, ' ')
  178. .replace(/<style[\s\S]*?<\/style>/gi, ' ')
  179. .replace(/<[^>]+>/g, ' ');
  180. const entries = [];
  181. const seen = new Set();
  182. const re = /Fake\s+([A-Za-zÀ-ÿ]{2,30})[^A-Za-z0-9.\-]{0,40}((?:[a-z0-9-]{2,60}\.)+[a-z]{2,12})(?![\w.-])/gi;
  183. for (const m of text.matchAll(re)) {
  184. const domain = stripWww(m[2]);
  185. if (FAKE_SHOP_EXCLUDE.test(domain) || seen.has(domain)) continue;
  186. const after = text.slice(m.index + m[0].length, m.index + m[0].length + 60);
  187. const date = (after.match(/\d{2}\.\d{2}\.\d{4}/) || [])[0] || null;
  188. const type = m[1] || null;
  189. seen.add(domain);
  190. entries.push({ domain, type, date });
  191. }
  192. return entries;
  193. }
  195. /** Full check: member registry + every country-domain shop search + fake-shop
  196. * warning lists, merged. */
  197. async #checkMerchant(domain, input, at) {
  198. const t0 = Date.now();
  199. const queryDomain = stripWww(domain);
  200. const [member, searches, fakeShop] = await Promise.all([
  201. this.#memberLookup(queryDomain).catch(err => ({ error: err.message })),
  202. Promise.all(this.o.countries.map(tld =>
  203. this.#searchCountry(queryDomain, tld).then(
  204. hits => ({ tld, hits }),
  205. err => ({ tld, error: err.message }),
  206. ))),
  207. this.#fakeShopData().catch(err => ({ error: err.message })),
  208. ]);
  209. this.stats.lookups++;
  210. const profiles = [];
  211. const searchErrors = [];
  212. let okSearches = 0;
  213. for (const r of searches) {
  214. if (r.hits) { okSearches++; for (const h of r.hits) profiles.push({ domain: `trustedshops.${r.tld}`, ...h }); }
  215. else searchErrors.push(`.${r.tld}: ${r.error}`);
  216. }
  218. // Fake-shop warning match: exact domain or the merchant sits on a flagged
  219. // domain's subdomain. Subdomain suffrage is deliberate — scam ops rotate
  220. // subdomains under a known-bad domain.
  221. const fakeShopUnreachable = Boolean(fakeShop.error) || !fakeShop.sitesChecked;
  222. let fakeShopResult;
  223. if (fakeShop.error) {
  224. fakeShopResult = { flagged: null, matches: [], reason: `fake-shop lists unavailable: ${fakeShop.error}` };
  225. } else if (!fakeShop.sitesChecked) {
  226. fakeShopResult = { flagged: null, matches: [], reason: `fake-shop lists unavailable: ${fakeShop.errors.slice(0, 3).join('; ') || 'no site reachable'}` };
  227. } else {
  228. const matches = [];
  229. for (const [flaggedDomain, entries] of fakeShop.byDomain) {
  230. if (queryDomain === flaggedDomain || queryDomain.endsWith(`.${flaggedDomain}`)) matches.push(...entries);
  231. }
  232. fakeShopResult = { flagged: matches.length > 0, matches, sites_checked: fakeShop.sitesChecked, warnings_total: fakeShop.totalWarnings, list_errors: fakeShop.errors };
  233. }
  235. const memberShops = member.error ? [] : member.shops;
  236. const totalChecks = 1 + this.o.countries.length;
  237. const failedChecks = (member.error ? 1 : 0) + searchErrors.length;
  238. // Everything failed only when the member/search layer is fully down AND the
  239. // fake-shop lists were unreachable too (#fakeShopData resolves with per-site
  240. // errors instead of rejecting, so sitesChecked is the real signal).
  241. const fakeShopFailed = Boolean(fakeShop.error) || !fakeShop.sitesChecked;
  242. if (failedChecks === totalChecks && fakeShopFailed) {
  243. const result = {
  244. input, name: domain, resolvedDomain: domain, listed: null, shops: [], profiles: [], found_on: [],
  245. primary: null, fake_shop: fakeShopResult,
  246. reason: `all Trusted Shops checks failed (member lookup: ${member.error || 'n/a'}; first search error: ${searchErrors[0] || 'n/a'}; fake-shop: ${fakeShopResult.reason || 'n/a'})`,
  247. checkedAt: at, lookupMs: Date.now() - t0,
  248. };
  249. this.stats.errors++;
  250. return result;
  251. }
  253. // Member market → the country site where that membership surfaces.
  254. const foundOn = new Set(profiles.map(p => p.domain));
  255. for (const ms of memberShops) {
  256. const tld = MARKET_TLD[String(ms.targetMarket || '').toUpperCase()];
  257. if (tld) foundOn.add(`trustedshops.${tld}`);
  258. }
  260. // Registry entries can be store pages with no quality data (e.g. conrad.de's 25
  261. // filiale entries): enrich them with the country-site search rating for the same
  262. // tsId, and prefer a rated entry over an unrated one as primary.
  263. const ssrByTsId = new Map(profiles.filter(p => p.tsId).map(p => [p.tsId, p]));
  264. for (const ms of memberShops) {
  265. if (ms.rating?.overallMark == null) {
  266. const hit = ssrByTsId.get(ms.tsId);
  267. if (hit && ((hit.averageRating ?? 0) > 0 || (hit.reviewCount ?? 0) > 0)) {
  268. ms.rating = { overallMark: hit.averageRating ?? null, description: null, totalReviewCount: hit.reviewCount ?? 0, activeReviewCount: null, reviewsCountedSince: null, source: 'country-site' };
  269. }
  270. }
  271. }
  272. const rated = memberShops.filter(s => s.rating?.overallMark != null)
  273. .sort((a, b) => (b.rating.totalReviewCount || 0) - (a.rating.totalReviewCount || 0));
  274. const bestProfile = profiles.slice().sort((a, b) => (b.reviewCount || 0) - (a.reviewCount || 0))[0] || null;
  275. // Primary is always member-shop shaped (tsId/name/rating) so consumers never branch:
  276. // best rated registry entry first, else the country-site profile normalized to that shape.
  277. const profilePrimary = bestProfile ? {
  278. tsId: bestProfile.tsId,
  279. name: bestProfile.accountName || bestProfile.shopName || queryDomain,
  280. registeredUrl: bestProfile.shopName || queryDomain,
  281. targetMarket: null,
  282. market: bestProfile.domain,
  283. profileType: bestProfile.profileType,
  284. profileUrl: bestProfile.profileUrl,
  285. rating: ((bestProfile.averageRating ?? 0) > 0 || (bestProfile.reviewCount ?? 0) > 0) ? {
  286. overallMark: bestProfile.averageRating ?? null,
  287. description: null,
  288. totalReviewCount: bestProfile.reviewCount ?? 0,
  289. activeReviewCount: null,
  290. reviewsCountedSince: null,
  291. source: 'country-site',
  292. } : null,
  293. } : null;
  294. const primary = rated[0] || profilePrimary || memberShops[0] || null;
  296. const result = {
  297. input,
  298. name: memberShops[0]?.name || bestProfile?.accountName || bestProfile?.shopName || domain,
  299. resolvedDomain: domain,
  300. listed: memberShops.length > 0 || profiles.length > 0,
  301. shops: memberShops, // member-registry entries (buyer-protection members)
  302. member: rated[0] || memberShops[0] || null,
  303. profiles, // country-site shop profiles (member AND non-member)
  304. found_on: [...foundOn].sort(),
  305. primary,
  306. fake_shop: fakeShopResult,
  307. search_errors: searchErrors,
  308. member_lookup_error: member.error || null,
  309. checkedAt: at,
  310. lookupMs: Date.now() - t0,
  311. };
  312. this.cache.set(domain, { at: Date.now(), result });
  313. return result;
  314. }
  316. /** Member registry lookup (buyer-protection members only; 404 = not a member). */
  317. async #memberLookup(queryDomain) {
  318. const res = await this.#gate(() => this.#deadline(
  319. this.fetchImpl(`${this.o.apiBase}/shops.json?url=${encodeURIComponent(queryDomain)}`, { signal: AbortSignal.timeout(this.o.timeoutMs), headers: { accept: 'application/json' } }),
  320. this.o.timeoutMs, 'Trusted Shops member lookup',
  321. ));
  322. if (res.status === 404) return { shops: [] };
  323. if (!res.ok) throw new Error(`HTTP ${res.status}`);
  324. const body = await res.json();
  325. const shops = (body?.response?.data?.shops || [])
  326. .slice(0, this.o.maxShopsPerMerchant)
  327. .map(s => ({
  328. tsId: s.tsId,
  329. name: s.name || queryDomain,
  330. registeredUrl: s.url || queryDomain,
  331. targetMarket: s.targetMarketISO3 || null,
  332. market: marketLabel(s.targetMarketISO3),
  333. language: s.languageISO2 || null,
  334. rating: null,
  335. }));
  336. await Promise.all(shops.slice(0, this.o.maxQualityLookups).map(async s => { s.rating = await this.#quality(s.tsId); }));
  337. return { shops };
  338. }
  340. /** One country site's shop search, parsed from the server-rendered __NEXT_DATA__. */
  341. async #searchCountry(queryDomain, tld) {
  342. this.stats.searchCalls++;
  343. const url = `https://www.trustedshops.${tld}/shops/?q=${encodeURIComponent(queryDomain)}`;
  344. const res = await this.#gate(() => this.#deadline(
  345. this.fetchImpl(url, { signal: AbortSignal.timeout(this.o.timeoutMs), headers: { accept: 'text/html' } }),
  346. this.o.timeoutMs, `Trusted Shops search .${tld}`,
  347. ));
  348. if (!res.ok) throw new Error(`HTTP ${res.status}`);
  349. const html = await res.text();
  350. return this.#parseSearchHtml(html, queryDomain).map(h => ({ ...h, domain: `trustedshops.${tld}` }));
  351. }
  353. /** Extract exact-domain hits from a search page. Fuzzy near-misses never count. */
  354. #parseSearchHtml(html, queryDomain) {
  355. const m = html.match(/<script id="__NEXT_DATA__" type="application\/json">([\s\S]*?)<\/script>/);
  356. if (!m) throw new Error('no __NEXT_DATA__ found (site unavailable or layout changed)');
  357. let shops;
  358. try {
  359. shops = JSON.parse(m[1])?.props?.pageProps?.shops;
  360. } catch {
  361. throw new Error('unparseable __NEXT_DATA__ JSON');
  362. }
  363. if (!Array.isArray(shops)) throw new Error('search result shape changed (no shops array)');
  364. const q = stripWww(queryDomain);
  365. return shops
  366. .filter(s => stripWww(s.shopUrl) === q || stripWww(s.shopName) === q)
  367. .map(s => ({
  368. profileType: s.profileType || null,
  369. tsId: s.tsID || s.tsId || null,
  370. accountName: s.accountName || null,
  371. shopName: s.shopName || null,
  372. averageRating: typeof s.averageRating === 'number' ? s.averageRating : null,
  373. reviewCount: typeof s.reviewCount === 'number' ? s.reviewCount : null,
  374. profileUrl: s.profileUrl ? (String(s.profileUrl).startsWith('http') ? s.profileUrl : `https://${s.profileUrl}`) : null,
  375. }));
  376. }
  378. /** Member rating evidence (non-member tsIds 404 here — expected). */
  379. async #quality(tsId) {
  380. try {
  381. this.stats.qualityCalls++;
  382. const res = await this.#gate(() => this.#deadline(
  383. this.fetchImpl(`${this.o.apiBase}/shops/${encodeURIComponent(tsId)}/quality.json`, { signal: AbortSignal.timeout(this.o.timeoutMs), headers: { accept: 'application/json' } }),
  384. this.o.timeoutMs, 'Trusted Shops quality',
  385. ));
  386. if (!res.ok) return null;
  387. const body = await res.json();
  388. const ri = body?.response?.data?.shop?.qualityIndicators?.reviewIndicator;
  389. if (!ri) return null;
  390. return {
  391. overallMark: typeof ri.overallMark === 'number' ? ri.overallMark : null,
  392. description: ri.overallMarkDescription || null,
  393. totalReviewCount: ri.totalReviewCount ?? null,
  394. activeReviewCount: ri.activeReviewCount ?? null,
  395. reviewsCountedSince: ri.reviewsCountedSince || null,
  396. };
  397. } catch {
  398. return null; // rating is garnish; listed/not-listed already stands
  399. }
  400. }
  402. /** Enforce the caller-side deadline with a real (ref'ed) timer. AbortSignal alone is
  403. * not enough: it never keeps the event loop alive, so a pure-hang fetch would drain
  404. * the loop and Node would exit/warn before the abort fires. */
  405. #deadline(promise, ms, label) {
  406. return Promise.race([
  407. promise,
  408. new Promise((_, rej) => setTimeout(() => rej(new Error(`${label} timed out after ${ms}ms`)), ms)),
  409. ]);
  410. }
  412. /** Request-level semaphore: bounds actual HTTP parallelism across the whole
  413. * batch (each merchant fans out to 1 + countries.length requests). */
  414. #gate(fn) {
  415. this._active = this._active || 0;
  416. this._queue = this._queue || [];
  417. const start = () => {
  418. this._active++;
  419. return fn().finally(() => {
  420. this._active--;
  421. const next = this._queue.shift();
  422. if (next) next();
  423. });
  424. };
  425. if (this._active < this.o.concurrency) return start();
  426. return new Promise(resolve => this._queue.push(resolve)).then(start);
  427. }
  428. }
  430. /** One-line human summary used in engine evidence and step-up UI. */
  431. export function describeResult(r) {
  432. if (!r) return null;
  433. // A fake-shop warning dominates everything else — it is the one hard-decline signal.
  434. if (r.fake_shop?.flagged) {
  435. const m = r.fake_shop.matches[0];
  436. return `FAKE SHOP WARNING: ${r.resolvedDomain} appears on ${m.site}'s fake-shop list${m.type ? ` (${m.type})` : ''}${m.date ? `, warning dated ${m.date}` : ''}`;
  437. }
  438. if (r.listed === true) {
  439. const parts = [];
  440. const member = Array.isArray(r.shops) ? r.shops.find(s => s.rating?.overallMark != null) || r.shops[0] : null;
  441. if (member) {
  442. parts.push(member.rating?.overallMark != null
  443. ? `member (tsId ${member.tsId}) rated ${member.rating.overallMark.toFixed(2)}/5.00 "${member.rating.description || ''}" from ${member.rating.totalReviewCount} reviews since ${member.rating.reviewsCountedSince || 'n/a'}${member.market ? `, market ${member.market}` : ''}`
  444. : `member (tsId ${member.tsId}${member.market ? `, market ${member.market}` : ''})`);
  445. }
  446. for (const p of (r.profiles || []).slice(0, 3)) {
  447. parts.push(`profile on ${p.domain} (${p.profileType || 'profile'}: ${p.accountName || p.shopName}, ${p.reviewCount ?? 0} reviews${p.averageRating ? `, ${p.averageRating}/5` : ''})`);
  448. }
  449. const on = (r.found_on || []).length ? ` Shows on: ${r.found_on.join(', ')}.` : '';
  450. return `listed on Trusted Shops — ${parts.join('; ')}.${on}`;
  451. }
  452. if (r.listed === false) return `not listed on Trusted Shops (checked live ${r.checkedAt} across ${(r.found_on || []).length === 0 && (r.search_errors || []).length ? 'available country sites' : 'all country sites'}) — neutral: many legitimate shops are not members`;
  453. return `Trusted Shops check unavailable: ${r.reason || 'unknown reason'}`;
  454. }