feat: Add comprehensive SEO implementation

- Add robots.txt with admin/API blocking - Add dynamic sitemap.xml with static pages and genre pages - Implement full meta tags (Open Graph, Twitter Cards, Canonical, Alternates) - Add SEO helper functions for domain detection and URL generation - Add generateMetadata to all pages (homepage, about, genre, special) - Support automatic domain detection for hoerdle.de and hördle.de - Add SEO configuration to lib/config.ts
2025-12-01 19:28:43 +01:00
parent 03129a5611
commit 20c8ad7eaf
10 changed files with 349 additions and 5 deletions
@@ -0,0 +1,64 @@
+import type { Metadata } from 'next';
+import { config } from './config';
+import { getBaseUrl } from './seo';
+
+/**
+ * Generate base metadata with Open Graph, Twitter Cards, and canonical URLs
+ */
+export async function generateBaseMetadata(
+    locale: string,
+    path: string = '',
+    title?: string,
+    description?: string,
+    image?: string
+): Promise<Metadata> {
+    const baseUrl = await getBaseUrl();
+    const pathSegment = path ? `/${path}` : '';
+    const fullUrl = `${baseUrl}/${locale}${pathSegment}`;
+    
+    // Determine alternate URLs for both locales (same path for both)
+    const alternateLocale = locale === 'de' ? 'en' : 'de';
+    const alternateUrl = `${baseUrl}/${alternateLocale}${pathSegment}`;
+    
+    // Default values
+    const metaTitle = title || config.appName;
+    const metaDescription = description || config.appDescription;
+    const ogImage = image || `${baseUrl}${config.seo.ogImage}`;
+    
+    return {
+        title: metaTitle,
+        description: metaDescription,
+        alternates: {
+            canonical: fullUrl,
+            languages: {
+                [locale]: fullUrl,
+                [alternateLocale]: alternateUrl,
+                'x-default': `${baseUrl}/en${pathSegment}`,
+            },
+        },
+        openGraph: {
+            title: metaTitle,
+            description: metaDescription,
+            url: fullUrl,
+            siteName: config.appName,
+            images: [
+                {
+                    url: ogImage,
+                    width: 1200,
+                    height: 630,
+                    alt: metaTitle,
+                },
+            ],
+            locale: locale,
+            type: 'website',
+        },
+        twitter: {
+            card: 'summary_large_image',
+            title: metaTitle,
+            description: metaDescription,
+            images: [ogImage],
+            ...(config.seo.twitterHandle && { creator: config.seo.twitterHandle }),
+        },
+    };
+}
+