feat: implement song rating system with admin view and user persistence

app/actions.ts

@@ -30,3 +30,44 @@ export async function sendGotifyNotification(attempts: number, status: 'won' | '
         console.error('Error sending Gotify notification:', error);
     }
 }
+
+import { PrismaClient } from '@prisma/client';
+const prisma = new PrismaClient();
+
+export async function submitRating(songId: number, rating: number, genre?: string | null) {
+    try {
+        const song = await prisma.song.findUnique({ where: { id: songId } });
+        if (!song) throw new Error('Song not found');
+
+        const newRatingCount = song.ratingCount + 1;
+        const newAverageRating = ((song.averageRating * song.ratingCount) + rating) / newRatingCount;
+
+        await prisma.song.update({
+            where: { id: songId },
+            data: {
+                averageRating: newAverageRating,
+                ratingCount: newRatingCount,
+            },
+        });
+
+        // Send Gotify notification for the rating
+        const genreText = genre ? `[${genre}] ` : '';
+        const title = `Hördle Rating: ${rating} Stars`;
+        const message = `Song "${song.title}" by ${song.artist} ${genreText}received a ${rating}-star rating. (Avg: ${newAverageRating.toFixed(2)}, Count: ${newRatingCount})`;
+
+        await fetch(`${GOTIFY_URL}/message?token=${GOTIFY_APP_TOKEN}`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+                title: title,
+                message: message,
+                priority: 5,
+            }),
+        });
+
+        return { success: true, averageRating: newAverageRating };
+    } catch (error) {
+        console.error('Error submitting rating:', error);
+        return { success: false, error: 'Failed to submit rating' };
+    }
+}