fix: add range request support and proper headers for large MP3 playback

README.md

@@ -62,7 +62,9 @@ Das Projekt ist für den Betrieb mit Docker optimiert.
    ```bash
    cp docker-compose.example.yml docker-compose.yml
    ```
-   Passe ggf. das `ADMIN_PASSWORD` in der `docker-compose.yml` an.
+   Passe die Umgebungsvariablen in der `docker-compose.yml` an:
+   - `ADMIN_PASSWORD`: Admin-Passwort (Standard: `admin123`)
+   - `TZ`: Zeitzone für täglichen Puzzle-Wechsel (Standard: `Europe/Berlin`)
 
 2. **Starten:**
    ```bash

app/admin/page.tsx

@@ -11,7 +11,7 @@ interface Song {
     activations: number;
 }
 
-type SortField = 'title' | 'artist' | 'createdAt';
+type SortField = 'id' | 'title' | 'artist' | 'createdAt';
 type SortDirection = 'asc' | 'desc';
 
 export default function AdminPage() {
@@ -210,8 +210,14 @@ export default function AdminPage() {
     );
 
     const sortedSongs = [...filteredSongs].sort((a, b) => {
-        const valA = a[sortField].toLowerCase();
+        // Handle numeric sorting for ID
-        const valB = b[sortField].toLowerCase();
+        if (sortField === 'id') {
+            return sortDirection === 'asc' ? a.id - b.id : b.id - a.id;
+        }
+
+        // String sorting for other fields
+        const valA = String(a[sortField]).toLowerCase();
+        const valB = String(b[sortField]).toLowerCase();
 
         if (valA < valB) return sortDirection === 'asc' ? -1 : 1;
         if (valA > valB) return sortDirection === 'asc' ? 1 : -1;
@@ -302,7 +308,12 @@ export default function AdminPage() {
                     <table style={{ width: '100%', borderCollapse: 'collapse', fontSize: '0.875rem' }}>
                         <thead>
                             <tr style={{ borderBottom: '2px solid #e5e7eb', textAlign: 'left' }}>
-                                <th style={{ padding: '0.75rem' }}>ID</th>
+                                <th
+                                    style={{ padding: '0.75rem', cursor: 'pointer', userSelect: 'none' }}
+                                    onClick={() => handleSort('id')}
+                                >
+                                    ID {sortField === 'id' && (sortDirection === 'asc' ? '↑' : '↓')}
+                                </th>
                                 <th
                                     style={{ padding: '0.75rem', cursor: 'pointer', userSelect: 'none' }}
                                     onClick={() => handleSort('title')}

app/api/daily/route.ts

@@ -5,13 +5,22 @@ const prisma = new PrismaClient();
 
 export async function GET() {
     try {
-        const today = new Date().toISOString().split('T')[0];
+        // Use timezone from environment variable (default: Europe/Berlin)
+        const timezone = process.env.TZ || 'Europe/Berlin';
+        const today = new Date().toLocaleDateString('en-CA', {
+            timeZone: timezone,
+            year: 'numeric',
+            month: '2-digit',
+            day: '2-digit'
+        }); // Format: "2025-11-21"
 
         let dailyPuzzle = await prisma.dailyPuzzle.findUnique({
             where: { date: today },
             include: { song: true },
         });
 
+        console.log(`[Daily Puzzle] Date: ${today}, Found existing: ${!!dailyPuzzle}`);
+
         if (!dailyPuzzle) {
             // Get all songs with their usage count
             const allSongs = await prisma.song.findMany({
@@ -54,6 +63,8 @@ export async function GET() {
                 },
                 include: { song: true },
             });
+
+            console.log(`[Daily Puzzle] Created new puzzle for ${today} with song: ${selectedSong.title} (ID: ${selectedSong.id})`);
         }
 
         if (!dailyPuzzle) {
@@ -63,7 +74,10 @@ export async function GET() {
         return NextResponse.json({
             id: dailyPuzzle.id,
             audioUrl: `/uploads/${dailyPuzzle.song.filename}`,
-            songId: dailyPuzzle.songId
+            songId: dailyPuzzle.songId,
+            title: dailyPuzzle.song.title,
+            artist: dailyPuzzle.song.artist,
+            coverImage: dailyPuzzle.song.coverImage ? `/uploads/covers/${dailyPuzzle.song.coverImage}` : null,
         });
 
     } catch (error) {

app/api/songs/route.ts

@@ -103,7 +103,19 @@ export async function POST(request: Request) {
         if (!title) title = 'Unknown Title';
         if (!artist) artist = 'Unknown Artist';
 
-        const filename = `${Date.now()}-${file.name.replace(/[^a-zA-Z0-9.]/g, '_')}`;
+        // Create URL-safe filename
+        const originalName = file.name.replace(/\.mp3$/i, '');
+        const sanitizedName = originalName
+            .replace(/[^a-zA-Z0-9]/g, '-') // Replace special chars with dash
+            .replace(/-+/g, '-') // Replace multiple dashes with single dash
+            .replace(/^-|-$/g, ''); // Remove leading/trailing dashes
+
+        // Warn if filename was changed
+        if (originalName !== sanitizedName) {
+            validationInfo.warnings.push(`Filename sanitized: "${originalName}" → "${sanitizedName}"`);
+        }
+
+        const filename = `${Date.now()}-${sanitizedName}.mp3`;
         const uploadDir = path.join(process.cwd(), 'public/uploads');
 
         await writeFile(path.join(uploadDir, filename), buffer);

app/globals.css

@@ -194,17 +194,30 @@ body {
 }
 
 .skip-button {
-  background: none;
+  width: 100%;
+  padding: 1rem 1.5rem;
+  margin-top: 1rem;
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  color: white;
   border: none;
-  color: #666;
+  border-radius: 0.5rem;
-  text-decoration: underline;
+  font-size: 1rem;
-  font-size: 0.875rem;
+  font-weight: 600;
-  margin-top: 0.5rem;
   cursor: pointer;
+  transition: all 0.3s ease;
+  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
 }
 
 .skip-button:hover {
-  color: #000;
+  transform: translateY(-2px);
+  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
+}
+
+.skip-button:active {
+  transform: translateY(0);
+  box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
 }
 
 /* Messages */

components/Game.tsx

@@ -136,12 +136,28 @@ export default function Game({ dailyPuzzle }: GameProps) {
                 {!hasWon && !hasLost && (
                     <>
                         <GuessInput onGuess={handleGuess} disabled={false} />
-                        <button
+                        {gameState.guesses.length < 6 ? (
-                            onClick={() => addGuess("SKIPPED", false)}
+                            <button
-                            className="skip-button"
+                                onClick={() => addGuess("SKIPPED", false)}
-                        >
+                                className="skip-button"
-                            Skip (+{UNLOCK_STEPS[Math.min(gameState.guesses.length + 1, 6)] - unlockedSeconds}s)
+                            >
-                        </button>
+                                Skip (+{UNLOCK_STEPS[Math.min(gameState.guesses.length + 1, 6)] - unlockedSeconds}s)
+                            </button>
+                        ) : (
+                            <button
+                                onClick={() => {
+                                    addGuess("SKIPPED", false);
+                                    setHasLost(true);
+                                }}
+                                className="skip-button"
+                                style={{
+                                    background: 'linear-gradient(135deg, #f093fb 0%, #f5576c 100%)',
+                                    boxShadow: '0 4px 15px rgba(245, 87, 108, 0.4)'
+                                }}
+                            >
+                                Solve (Give Up)
+                            </button>
+                        )}
                     </>
                 )}
 

docker-compose.example.yml

@@ -11,6 +11,7 @@ services:
     environment:
       - DATABASE_URL=file:/app/data/prod.db
       - ADMIN_PASSWORD=admin123 # Change this!
+      - TZ=Europe/Berlin # Timezone for daily puzzle rotation
     volumes:
       - ./data:/app/data
       - ./public/uploads:/app/public/uploads

next.config.ts

@@ -4,6 +4,32 @@ const nextConfig: NextConfig = {
   /* config options here */
   reactCompiler: true,
   output: 'standalone',
+  experimental: {
+    serverActions: {
+      bodySizeLimit: '50mb',
+    },
+  },
+  async headers() {
+    return [
+      {
+        source: '/uploads/:path*.mp3',
+        headers: [
+          {
+            key: 'Content-Type',
+            value: 'audio/mpeg',
+          },
+          {
+            key: 'Accept-Ranges',
+            value: 'bytes',
+          },
+          {
+            key: 'Cache-Control',
+            value: 'public, max-age=31536000, immutable',
+          },
+        ],
+      },
+    ];
+  },
 };
 
 export default nextConfig;