feat: add Hersteller page with manufacturer data fetching and SEO support

prerender/seo/hersteller.cjs

@@ -0,0 +1,116 @@
+/** Safe for double-quoted HTML attributes */
+const escAttr = (str) =>
+  String(str ?? "")
+    .replace(/&/g, "&")
+    .replace(/"/g, """)
+    .replace(/</g, "&lt;");
+
+/**
+ * Head tags for prerendered Hersteller (Manufacturers) page
+ */
+const generateHerstellerMetaTags = (baseUrl, config, manufacturerCount = 0) => {
+  const root = baseUrl.endsWith("/") ? baseUrl.slice(0, -1) : baseUrl;
+  const herstellerUrl = root + "/Hersteller";
+  const site = config.siteName || config.brandName;
+  const desc = manufacturerCount + " Hersteller bei " + config.brandName + ": Top-Marken für Growshop-Produkte. Schnelle Lieferung, Laden Dresden.";
+  const descShort = desc.length > 160 ? desc.slice(0, 157) + "..." : desc;
+  const e = escAttr;
+  const logoUrl =
+    config.images && config.images.logo
+      ? root + config.images.logo
+      : root + "/assets/images/nopicture.jpg";
+
+  return `
+    <meta name="description" content="${e(descShort)}">
+    <meta property="og:title" content="${e("Hersteller | " + site)}">
+    <meta property="og:description" content="${e(descShort)}">
+    <meta property="og:url" content="${herstellerUrl}">
+    <meta property="og:type" content="website">
+    <meta property="og:image" content="${e(logoUrl)}">
+    <meta property="og:site_name" content="${e(site)}">
+    <meta name="twitter:card" content="summary_large_image">
+    <meta name="twitter:title" content="${e("Hersteller | " + site)}">
+    <meta name="twitter:description" content="${e(descShort)}">
+    <meta name="robots" content="index, follow">
+    <link rel="canonical" href="${herstellerUrl}">
+  `;
+};
+
+const generateHerstellerJsonLd = (baseUrl, config) => {
+  const root = baseUrl.endsWith("/") ? baseUrl.slice(0, -1) : baseUrl;
+  const herstellerUrl = root + "/Hersteller";
+
+  const id = {
+    business: root + "#business",
+    website: root + "#website",
+    breadcrumb: herstellerUrl + "#breadcrumb",
+  };
+
+  const logoUrl =
+    config.images && config.images.logo
+      ? root + config.images.logo
+      : undefined;
+
+  const businessNode = {
+    "@id": id.business,
+    "@type": ["GardenStore", "LocalBusiness", "Organization"],
+    name: config.brandName,
+    url: root,
+  };
+
+  if (logoUrl) {
+    businessNode.logo = { "@type": "ImageObject", url: logoUrl };
+    businessNode.image = { "@type": "ImageObject", url: logoUrl };
+  }
+
+  const websiteNode = {
+    "@id": id.website,
+    "@type": "WebSite",
+    name: config.siteName || config.brandName,
+    url: root,
+    publisher: { "@id": id.business },
+  };
+
+  const breadcrumbNode = {
+    "@id": id.breadcrumb,
+    "@type": "BreadcrumbList",
+    itemListElement: [
+      {
+        "@type": "ListItem",
+        position: 1,
+        name: "Home",
+        item: root,
+      },
+      {
+        "@type": "ListItem",
+        position: 2,
+        name: "Hersteller",
+        item: herstellerUrl,
+      },
+    ],
+  };
+
+  const collectionPageNode = {
+    "@id": herstellerUrl,
+    "@type": "CollectionPage",
+    name: "Hersteller",
+    url: herstellerUrl,
+    description: "Alle Hersteller und Marken für Growshop-Produkte",
+    isPartOf: { "@id": id.website },
+    breadcrumb: { "@id": id.breadcrumb },
+  };
+
+  const graph = [businessNode, websiteNode, breadcrumbNode, collectionPageNode];
+
+  const herstellerGraph = {
+    "@context": "https://schema.org",
+    "@graph": graph,
+  };
+
+  return "<script type=\"application/ld+json\">" + JSON.stringify(herstellerGraph) + "</script>";
+};
+
+module.exports = {
+  generateHerstellerMetaTags,
+  generateHerstellerJsonLd,
+};

prerender/seo/index.cjs

@@ -23,6 +23,11 @@ const {
   generateKonfiguratorMetaTags,
 } = require('./konfigurator.cjs');
 
+const {
+  generateHerstellerMetaTags,
+  generateHerstellerJsonLd,
+} = require('./hersteller.cjs');
+
 const {
   generateRobotsTxt,
   generateProductsXml,
@@ -56,6 +61,10 @@ module.exports = {
   // Konfigurator functions
   generateKonfiguratorMetaTags,
   
+  // Hersteller functions
+  generateHerstellerMetaTags,
+  generateHerstellerJsonLd,
+  
   // Feed/Export functions
   generateRobotsTxt,
   generateProductsXml,