Rename repo-agent to conversation-layer-agent

conversation-layer-agent/src/index.ts

@@ -0,0 +1,43 @@
+import express from 'express';
+import { GoogleGenerativeAI } from '@google/generative-ai';
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const PORT = Number(process.env.PORT) || 8001;
+const API_KEY = process.env.GEMINI_API_KEY || '';
+
+const genAI = API_KEY ? new GoogleGenerativeAI(API_KEY) : null;
+const model = genAI ? genAI.getGenerativeModel({ model: 'gemini-pro' }) : null;
+
+const repoInfo = `This repository contains a WhatsApp router, a simple chat UI and now a conversation-layer-agent service.
+- whatsapp-router: Forwards WhatsApp messages to configured agents. 
+- chat-ui: Minimal web interface that also talks to an agent. 
+- conversation-layer-agent: Answers questions about the repository.
+Run all services with docker-compose. Configure handler mappings in whatsapp-router/src/chatHandlers.ts.`;
+
+const app = express();
+app.use(express.json());
+
+app.post('/', async (req, res) => {
+  const message = req.body?.message as string | undefined;
+  if (!message) return res.status(400).json({ error: 'Missing message' });
+
+  if (!model) {
+    return res.json({ reply: repoInfo });
+  }
+
+  try {
+    const prompt = `Repo information: ${repoInfo}\nUser message: ${message}`;
+    const result = await model.generateContent(prompt);
+    const reply = result.response.text().trim();
+    res.json({ reply });
+  } catch (err: any) {
+    console.error('Gemini error', err.message);
+    res.status(500).json({ error: 'Failed to generate reply' });
+  }
+});
+
+app.listen(PORT, () => {
+  console.log(`conversation-layer-agent listening on ${PORT}`);
+});