init push

backend/services/ai.js

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+import { SYSTEM_PROMPT } from '../prompts/extractRecipe.js';
+
+const OLLAMA_URL = process.env.OLLAMA_URL || 'http://localhost:11434';
+const MODEL = process.env.OLLAMA_MODEL || 'mistral';
+
+export async function isOllamaAvailable() {
+  try {
+    const res = await fetch(`${OLLAMA_URL}/api/tags`, { signal: AbortSignal.timeout(3000) });
+    return res.ok;
+  } catch {
+    return false;
+  }
+}
+
+export async function extractRecipe(description) {
+  const response = await fetch(`${OLLAMA_URL}/api/generate`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({
+      model: MODEL,
+      system: SYSTEM_PROMPT,
+      prompt: `Extrahiere ein Rezept aus dieser TikTok-Videobeschreibung:\n\n${description}`,
+      stream: false,
+    }),
+  });
+
+  if (!response.ok) {
+    throw new Error(`Ollama Fehler: ${response.status}`);
+  }
+
+  const data = await response.json();
+  let text = data.response.trim();
+
+  if (text.startsWith('```')) {
+    text = text.replace(/^```(?:json)?\n?/, '').replace(/\n?```$/, '');
+  }
+
+  return JSON.parse(text);
+}