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
--- a/app/sitemap.ts
+++ b/app/sitemap.ts
@@ -0,0 +1,128 @@
+import { MetadataRoute } from 'next';
+import { PrismaClient } from '@prisma/client';
+import { getLocalizedValue } from '@/lib/i18n';
+import { config } from '@/lib/config';
+
+const prisma = new PrismaClient();
+
+export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
+    const baseUrl = process.env.NEXT_PUBLIC_DOMAIN || config.domain;
+    const protocol = process.env.NODE_ENV === 'production' ? 'https' : 'http';
+    const siteUrl = `${protocol}://${baseUrl}`;
+
+    const now = new Date().toISOString();
+
+    // Static pages
+    const staticPages: MetadataRoute.Sitemap = [
+        {
+            url: `${siteUrl}/en`,
+            lastModified: now,
+            changeFrequency: 'daily',
+            priority: 1.0,
+            alternates: {
+                languages: {
+                    'de': `${siteUrl}/de`,
+                    'en': `${siteUrl}/en`,
+                    'x-default': `${siteUrl}/en`,
+                },
+            },
+        },
+        {
+            url: `${siteUrl}/de`,
+            lastModified: now,
+            changeFrequency: 'monthly',
+            priority: 0.8,
+            alternates: {
+                languages: {
+                    'de': `${siteUrl}/de`,
+                    'en': `${siteUrl}/en`,
+                    'x-default': `${siteUrl}/en`,
+                },
+            },
+        },
+        {
+            url: `${siteUrl}/en/about`,
+            lastModified: now,
+            changeFrequency: 'monthly',
+            priority: 0.7,
+            alternates: {
+                languages: {
+                    'de': `${siteUrl}/de/about`,
+                    'en': `${siteUrl}/en/about`,
+                    'x-default': `${siteUrl}/en/about`,
+                },
+            },
+        },
+        {
+            url: `${siteUrl}/de/about`,
+            lastModified: now,
+            changeFrequency: 'monthly',
+            priority: 0.7,
+            alternates: {
+                languages: {
+                    'de': `${siteUrl}/de/about`,
+                    'en': `${siteUrl}/en/about`,
+                    'x-default': `${siteUrl}/en/about`,
+                },
+            },
+        },
+    ];
+
+    // Dynamic genre pages
+    try {
+        const genres = await prisma.genre.findMany({
+            where: { active: true },
+        });
+
+        const genrePages: MetadataRoute.Sitemap = [];
+
+        for (const genre of genres) {
+            const genreNameEn = getLocalizedValue(genre.name, 'en');
+            const genreNameDe = getLocalizedValue(genre.name, 'de');
+
+            // Only add if genre name is valid
+            if (genreNameEn && genreNameDe) {
+                const encodedEn = encodeURIComponent(genreNameEn);
+                const encodedDe = encodeURIComponent(genreNameDe);
+
+                genrePages.push(
+                    {
+                        url: `${siteUrl}/en/${encodedEn}`,
+                        lastModified: now,
+                        changeFrequency: 'daily',
+                        priority: 0.9,
+                        alternates: {
+                            languages: {
+                                'de': `${siteUrl}/de/${encodedDe}`,
+                                'en': `${siteUrl}/en/${encodedEn}`,
+                                'x-default': `${siteUrl}/en/${encodedEn}`,
+                            },
+                        },
+                    },
+                    {
+                        url: `${siteUrl}/de/${encodedDe}`,
+                        lastModified: now,
+                        changeFrequency: 'daily',
+                        priority: 0.9,
+                        alternates: {
+                            languages: {
+                                'de': `${siteUrl}/de/${encodedDe}`,
+                                'en': `${siteUrl}/en/${encodedEn}`,
+                                'x-default': `${siteUrl}/en/${encodedEn}`,
+                            },
+                        },
+                    }
+                );
+            }
+        }
+
+        return [...staticPages, ...genrePages];
+    } catch (error) {
+        console.error('Error generating sitemap:', error);
+        // Return static pages only if database query fails
+        return staticPages;
+    } finally {
+        await prisma.$disconnect();
+    }
+}
+