Feature/kleinanzeigen new (#292)

* Feature/Kleinanzeigen addresses (#289)

* upgrade dependencies

* immoscout_details -> provider_details

* fetching details more generic

* removing claude action

* fixing sparkassen selector

* improvements

* fixing immobilienDE test

* upgrading dependencies

* settings for many provider

---------

Co-authored-by: Adrian Bach <65734063+realDayaa@users.noreply.github.com>

lib/provider/kleinanzeigen.js

@@ -5,14 +5,151 @@
 
 import { buildHash, isOneOf } from '../utils.js';
 import checkIfListingIsActive from '../services/listings/listingActiveTester.js';
+import puppeteerExtractor from '../services/extractor/puppeteerExtractor.js';
+import logger from '../services/logger.js';
+import * as cheerio from 'cheerio';
 
 let appliedBlackList = [];
 let appliedBlacklistedDistricts = [];
 
+function toAbsoluteLink(link) {
+  if (!link) return null;
+  return link.startsWith('http') ? link : `https://www.kleinanzeigen.de${link}`;
+}
+
+function cleanText(value) {
+  if (value == null) return '';
+  return String(value)
+    .replace(/<[^>]*>/g, ' ')
+    .replace(/\s+/g, ' ')
+    .trim();
+}
+
+function buildAddressFromJsonLd(address) {
+  if (!address || typeof address !== 'object') return null;
+
+  const locality = cleanText(address.addressLocality);
+  const region = cleanText(address.addressRegion);
+  const postalCode = cleanText(address.postalCode);
+  const streetAddress = cleanText(address.streetAddress);
+
+  const cityPart = [region, locality].filter(Boolean).join(' - ');
+  const tail = [postalCode, cityPart || locality || region].filter(Boolean).join(' ');
+  const fullAddress = [streetAddress, tail].filter(Boolean).join(', ');
+
+  return fullAddress || null;
+}
+
+function flattenJsonLdNodes(node, acc = []) {
+  if (node == null) return acc;
+
+  if (Array.isArray(node)) {
+    node.forEach((item) => flattenJsonLdNodes(item, acc));
+    return acc;
+  }
+
+  if (typeof node !== 'object') return acc;
+
+  acc.push(node);
+
+  if (Array.isArray(node['@graph'])) {
+    node['@graph'].forEach((item) => flattenJsonLdNodes(item, acc));
+  }
+
+  if (node.mainEntity) {
+    flattenJsonLdNodes(node.mainEntity, acc);
+  }
+
+  if (node.itemOffered) {
+    flattenJsonLdNodes(node.itemOffered, acc);
+  }
+
+  return acc;
+}
+
+function extractDetailFromHtml(html) {
+  const $ = cheerio.load(html);
+  const nodes = [];
+
+  // Prefer the rendered postal address block from the detail page because
+  // it contains the street line that is missing from list results.
+  const streetFromDom = cleanText($('#street-address').first().text());
+  const localityFromDom = cleanText($('#viewad-locality').first().text());
+  const domAddress = [streetFromDom, localityFromDom].filter(Boolean).join(' ');
+
+  $('script[type="application/ld+json"]').each((_, element) => {
+    const content = $(element).text();
+    if (!content) return;
+
+    try {
+      const parsed = JSON.parse(content);
+      flattenJsonLdNodes(parsed, nodes);
+    } catch {
+      // Ignore broken JSON-LD blocks from ads/trackers and keep trying others.
+    }
+  });
+
+  let detailAddress = null;
+  let detailDescription = null;
+
+  if (domAddress) {
+    detailAddress = domAddress;
+  }
+
+  for (const node of nodes) {
+    const candidateAddress = buildAddressFromJsonLd(
+      node.address || node?.itemOffered?.address || node?.offers?.address,
+    );
+    if (!detailAddress && candidateAddress) {
+      detailAddress = candidateAddress;
+    }
+
+    const candidateDescription = cleanText(node.description || node?.itemOffered?.description);
+    if (!detailDescription && candidateDescription) {
+      detailDescription = candidateDescription;
+    }
+
+    if (detailAddress && detailDescription) {
+      break;
+    }
+  }
+
+  return {
+    detailAddress,
+    detailDescription,
+  };
+}
+
+async function enrichListingFromDetails(listing, browser) {
+  const absoluteLink = toAbsoluteLink(listing.link);
+  if (!absoluteLink) return listing;
+
+  try {
+    const html = await puppeteerExtractor(absoluteLink, null, { browser });
+    if (!html) return { ...listing, link: absoluteLink };
+
+    const { detailAddress, detailDescription } = extractDetailFromHtml(html);
+
+    return {
+      ...listing,
+      link: absoluteLink,
+      address: detailAddress || listing.address,
+      description: detailDescription || listing.description,
+    };
+  } catch (error) {
+    logger.warn(`Could not fetch Kleinanzeigen detail page for listing '${listing.id}'.`, error?.message || error);
+    return { ...listing, link: absoluteLink };
+  }
+}
+
+async function fetchDetails(listing, browser) {
+  return enrichListingFromDetails(listing, browser);
+}
+
 function normalize(o) {
   const size = o.size || '--- m²';
   const id = buildHash(o.id, o.price);
-  const link = `https://www.kleinanzeigen.de${o.link}`;
+  const link = toAbsoluteLink(o.link) || o.link;
   return Object.assign(o, { id, size, link });
 }
 
@@ -40,12 +177,13 @@ const config = {
     address: '.aditem-main--top--left | trim | removeNewline',
     image: 'img@src',
   },
+  fetchDetails,
   normalize: normalize,
   filter: applyBlacklist,
   activeTester: checkIfListingIsActive,
 };
 export const metaInformation = {
-  name: 'Ebay Kleinanzeigen',
+  name: 'Kleinanzeigen',
   baseUrl: 'https://www.kleinanzeigen.de/',
   id: 'kleinanzeigen',
 };