fix Analyse

backend/analytics-db.js

@@ -7,7 +7,12 @@ const DB_FILE = process.env.ANALYTICS_PATH || join(__dirname, 'analytics.json');
 
 function loadDB() {
   if (existsSync(DB_FILE)) {
-    return JSON.parse(readFileSync(DB_FILE, 'utf-8'));
+    try {
+      return JSON.parse(readFileSync(DB_FILE, 'utf-8'));
+    } catch (e) {
+      console.error('Analytics Datei korrupt, Backup erstellt:', e.message);
+      try { writeFileSync(DB_FILE + '.bak', readFileSync(DB_FILE, 'utf-8')); } catch {}
+    }
   }
   return { events: [], _counter: 0 };
 }

backend/db.js

@@ -7,7 +7,12 @@ const DB_FILE = process.env.DB_PATH || join(__dirname, 'data.json');
 
 function loadDB() {
   if (existsSync(DB_FILE)) {
-    return JSON.parse(readFileSync(DB_FILE, 'utf-8'));
+    try {
+      return JSON.parse(readFileSync(DB_FILE, 'utf-8'));
+    } catch (e) {
+      console.error('DB Datei korrupt, Backup erstellt:', e.message);
+      try { writeFileSync(DB_FILE + '.bak', readFileSync(DB_FILE, 'utf-8')); } catch {}
+    }
   }
   return { users: [], recipes: [], invite_tokens: [], _counters: { users: 0, recipes: 0, invite_tokens: 0 } };
 }

backend/routes/recipes.js

@@ -83,6 +83,7 @@ router.post('/from-tiktok', async (req, res) => {
     let extracted = null;
     let aiStatus = ollamaAvailable ? 'available' : 'unavailable';
 
+    let aiMessage = '';
     if (ollamaAvailable && tiktokData.title) {
       try {
         extracted = await extractRecipe(tiktokData.title);
@@ -90,13 +91,19 @@ router.post('/from-tiktok', async (req, res) => {
       } catch (e) {
         console.error('Ollama Extraktion fehlgeschlagen:', e.message);
         aiStatus = 'error';
+        aiMessage = e.message;
       }
+    } else if (!ollamaAvailable) {
+      aiMessage = 'Ollama-Server nicht erreichbar';
+    } else if (!tiktokData.title) {
+      aiMessage = 'Kein Titel im Video gefunden';
     }
 
     res.json({
       tiktok: tiktokData,
       ollama: ollamaAvailable,
       aiStatus,
+      aiMessage,
       extracted,
     });
   } catch (error) {
@@ -115,6 +122,7 @@ router.post('/from-instagram', async (req, res) => {
     let extracted = null;
     let aiStatus = ollamaAvailable ? 'available' : 'unavailable';
 
+    let aiMessage = '';
     if (ollamaAvailable && instagramData.title) {
       try {
         extracted = await extractRecipe(instagramData.title);
@@ -122,13 +130,19 @@ router.post('/from-instagram', async (req, res) => {
       } catch (e) {
         console.error('Ollama Extraktion fehlgeschlagen:', e.message);
         aiStatus = 'error';
+        aiMessage = e.message;
       }
+    } else if (!ollamaAvailable) {
+      aiMessage = 'Ollama-Server nicht erreichbar';
+    } else if (!instagramData.title) {
+      aiMessage = 'Kein Titel im Video gefunden';
     }
 
     res.json({
       instagram: instagramData,
       ollama: ollamaAvailable,
       aiStatus,
+      aiMessage,
       extracted,
     });
   } catch (error) {

backend/services/ai.js

@@ -22,6 +22,7 @@ export async function extractRecipe(description) {
       prompt: `Extrahiere ein Rezept aus dieser TikTok-Videobeschreibung:\n\n${description}`,
       stream: false,
     }),
+    signal: AbortSignal.timeout(120000),
   });
 
   if (!response.ok) {