Implementiere i18n für Frontend, Admin und Datenbank

app/api/genres/route.ts

@@ -1,19 +1,35 @@
 import { NextResponse } from 'next/server';
 import { PrismaClient } from '@prisma/client';
 import { requireAdminAuth } from '@/lib/auth';
+import { getLocalizedValue } from '@/lib/i18n';
 
 const prisma = new PrismaClient();
 
-export async function GET() {
+export async function GET(request: Request) {
     try {
+        const { searchParams } = new URL(request.url);
+        const locale = searchParams.get('locale');
+
         const genres = await prisma.genre.findMany({
-            orderBy: { name: 'asc' },
+            // orderBy: { name: 'asc' }, // Cannot sort by JSON field easily in SQLite
             include: {
                 _count: {
                     select: { songs: true }
                 }
             }
         });
+
+        // Sort in memory if needed, or just return
+        // If locale is provided, map to localized values
+        if (locale) {
+            const localizedGenres = genres.map(g => ({
+                ...g,
+                name: getLocalizedValue(g.name, locale),
+                subtitle: getLocalizedValue(g.subtitle, locale)
+            })).sort((a, b) => a.name.localeCompare(b.name));
+            return NextResponse.json(localizedGenres);
+        }
+
         return NextResponse.json(genres);
     } catch (error) {
         console.error('Error fetching genres:', error);
@@ -29,14 +45,18 @@ export async function POST(request: Request) {
     try {
         const { name, subtitle, active } = await request.json();
 
-        if (!name || typeof name !== 'string') {
+        if (!name) {
             return NextResponse.json({ error: 'Invalid name' }, { status: 400 });
         }
 
+        // Ensure name is stored as JSON
+        const nameData = typeof name === 'string' ? { de: name, en: name } : name;
+        const subtitleData = subtitle ? (typeof subtitle === 'string' ? { de: subtitle, en: subtitle } : subtitle) : null;
+
         const genre = await prisma.genre.create({
             data: {
-                name: name.trim(),
-                subtitle: subtitle ? subtitle.trim() : null,
+                name: nameData,
+                subtitle: subtitleData,
                 active: active !== undefined ? active : true
             },
         });
@@ -83,13 +103,14 @@ export async function PUT(request: Request) {
             return NextResponse.json({ error: 'Missing id' }, { status: 400 });
         }
 
+        const updateData: any = {};
+        if (name) updateData.name = typeof name === 'string' ? { de: name, en: name } : name;
+        if (subtitle !== undefined) updateData.subtitle = subtitle ? (typeof subtitle === 'string' ? { de: subtitle, en: subtitle } : subtitle) : null;
+        if (active !== undefined) updateData.active = active;
+
         const genre = await prisma.genre.update({
             where: { id: Number(id) },
-            data: {
-                ...(name && { name: name.trim() }),
-                subtitle: subtitle ? subtitle.trim() : null,
-                ...(active !== undefined && { active })
-            },
+            data: updateData,
         });
 
         return NextResponse.json(genre);