import express from 'express';
import fetch from 'node-fetch';

const app = express();
app.use(express.raw({type: '*/*'}));

// Hello World на главной
app.get('/', (req, res) => {
  res.send('Hello World');
});

// Прокси для всех остальных путей
app.all('*', async (req, res) => {
  if (req.url === '/') return;

  try {
    const url = `https://api.groq.com${req.url}`;
    
    // Копируем и фильтруем заголовки
    const headers = {...req.headers};
    delete headers['host'];
    delete headers['content-length'];

    const response = await fetch(url, {
      method: req.method,
      headers,
      body: req.method !== 'GET' ? req.body : undefined
    });

    // Streaming response
    if (response.headers.get('content-type')?.includes('text/event-stream')) {
      res.setHeader('Content-Type', 'text/event-stream');
      response.body.pipe(res);
      return;
    }

    // Regular response
    const data = await response.buffer();
    res.status(response.status);
    res.set('Content-Type', response.headers.get('content-type'));
    res.send(data);

  } catch (error) {
    res.status(500).send(error.message);
  }
});

app.listen(7860, '0.0.0.0', () => {
  console.log('Server running on port 7860');
});