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backend/routes/recipes.js

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+import { Router } from 'express';
+import {
+  getAllRecipes, getRecipeById, createRecipe,
+  updateRecipe, deleteRecipe, getCategories
+} from '../db.js';
+import { getTikTokData } from '../services/tiktok.js';
+import { isOllamaAvailable, extractRecipe } from '../services/ai.js';
+
+const router = Router();
+
+router.get('/', (req, res) => {
+  const { search, category } = req.query;
+  const recipes = getAllRecipes(search, category);
+  res.json(recipes.map(r => ({
+    ...r,
+    ingredients: JSON.parse(r.ingredients),
+    steps: JSON.parse(r.steps),
+  })));
+});
+
+router.get('/categories', (req, res) => {
+  res.json(getCategories());
+});
+
+router.get('/ai-status', async (req, res) => {
+  const available = await isOllamaAvailable();
+  res.json({ ollama: available });
+});
+
+router.get('/:id', (req, res) => {
+  const recipe = getRecipeById(req.params.id);
+  if (!recipe) return res.status(404).json({ error: 'Rezept nicht gefunden' });
+  res.json({
+    ...recipe,
+    ingredients: JSON.parse(recipe.ingredients),
+    steps: JSON.parse(recipe.steps),
+  });
+});
+
+router.post('/', (req, res) => {
+  const recipe = createRecipe(req.body);
+  res.status(201).json(recipe);
+});
+
+router.put('/:id', (req, res) => {
+  const existing = getRecipeById(req.params.id);
+  if (!existing) return res.status(404).json({ error: 'Rezept nicht gefunden' });
+  const updated = updateRecipe(req.params.id, req.body);
+  res.json(updated);
+});
+
+router.delete('/:id', (req, res) => {
+  const existing = getRecipeById(req.params.id);
+  if (!existing) return res.status(404).json({ error: 'Rezept nicht gefunden' });
+  deleteRecipe(req.params.id);
+  res.json({ success: true });
+});
+
+router.post('/from-tiktok', async (req, res) => {
+  try {
+    const { url } = req.body;
+    if (!url) return res.status(400).json({ error: 'URL erforderlich' });
+
+    const tiktokData = await getTikTokData(url);
+
+    const ollamaAvailable = await isOllamaAvailable();
+    let extracted = null;
+    let aiStatus = ollamaAvailable ? 'available' : 'unavailable';
+
+    if (ollamaAvailable && tiktokData.title) {
+      try {
+        extracted = await extractRecipe(tiktokData.title);
+        aiStatus = 'success';
+      } catch (e) {
+        console.error('Ollama Extraktion fehlgeschlagen:', e.message);
+        aiStatus = 'error';
+      }
+    }
+
+    res.json({
+      tiktok: tiktokData,
+      ollama: ollamaAvailable,
+      aiStatus,
+      extracted,
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+export default router;