const express = require('express');
const axios = require('axios');
const cors = require('cors');
const path = require('path');

const app = express();
const PORT = 3000;

// 中间件
app.use(cors());
app.use(express.json());
app.use(express.static(path.join(__dirname, 'public')));

// API路由
app.post('/api/chat', async (req, res) => {
    try {
        const userMessage = req.body.message;
        
        const response = await axios.post('https://dashscope.aliyuncs.com/api/v1/services/aigc/text-generation/generation', {
            model: "farui-plus",
            input: {
                messages: [
                    { role: "system", content: "You are a helpful assistant." },
                    { role: "user", content: userMessage }
                ]
            }
        }, {
            headers: {
                'Authorization': `Bearer YOUR_API_KEY`,
                'Content-Type': 'application/json'
            }
        });

        res.json({
            status: 'success',
            response: response.data
        });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            status: 'error',
            message: 'Internal server error'
        });
    }
});

// 前端路由
app.get('*', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'index.html'));
});

app.listen(PORT, () => {
    console.log(`Server is running on http://localhost:${PORT}`);
});