first commit

server.js

@@ -0,0 +1,75 @@
+const express = require('express');
+const multer = require('multer');
+const path = require('path');
+const cors = require('cors');
+const fs = require('fs');
+const axios = require('axios');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Middleware
+app.use(cors());
+app.use(express.json());
+app.use(express.static(path.join(__dirname)));
+
+// Multer setup for file uploads
+const upload = multer({
+    dest: path.join(__dirname, 'uploads/')
+});
+
+// File upload endpoint
+app.post('/api/upload', upload.single('file'), async (req, res) => {
+    if (!req.file) {
+        return res.status(400).json({ error: 'No file uploaded' });
+    }
+    // TODO: Integrate with Flowise API for summarization/quiz
+    // Example: send file to Flowise and get summary/quiz
+    // const flowiseResponse = await axios.post('FLOWISE_API_URL', ...);
+    res.json({
+        message: 'File uploaded successfully',
+        filename: req.file.filename,
+        originalname: req.file.originalname
+    });
+});
+
+// Placeholder endpoint for summarization/quiz (to be implemented)
+app.post('/api/flowise', async (req, res) => {
+    // Simulate Flowise integration: read uploaded file and return a fake summary
+    const { filename } = req.body;
+    if (!filename) {
+        return res.status(400).json({ error: 'Filename required' });
+    }
+    const filePath = path.join(__dirname, 'uploads', filename);
+    try {
+        const fileContent = fs.readFileSync(filePath, 'utf8');
+        // TODO: Replace with actual Flowise API call
+        // const flowiseResponse = await axios.post('FLOWISE_API_URL', { content: fileContent });
+        // return res.json({ summary: flowiseResponse.data.summary });
+        res.json({ summary: `Sample summary for file: ${filename}\n\n${fileContent.substring(0, 200)}...` });
+    } catch (err) {
+        res.status(500).json({ error: 'Could not read file for summary.' });
+    }
+});
+
+// Chatbot endpoint for chitchat with Flowise ChatGPT
+app.post('/api/chat', async (req, res) => {
+    const { message } = req.body;
+    if (!message) {
+        return res.status(400).json({ error: 'Message required' });
+    }
+    try {
+        const flowiseRes = await axios.post(
+            'https://flowise.suika.cc/api/v1/prediction/5079e3d1-4e79-42f5-9c90-1142d9eede4c',
+            { question: message },
+            { headers: { 'Content-Type': 'application/json' } }
+        );
+        res.json({ reply: flowiseRes.data.text || flowiseRes.data.answer || 'No reply.' });
+    } catch (err) {
+        res.status(500).json({ error: 'Failed to get reply from Flowise.' });
+    }
+});
+
+app.listen(PORT, () => {
+    console.log(`EduCat backend running on http://localhost:${PORT}`);
+});