const express = require('express');
const fetch = require('isomorphic-fetch');
const bodyParser = require('body-parser');
const { HttpProxyAgent } = require('http-proxy-agent');
const http = require('http');
const https = require('https');

const app = express();
const port = 7860;

app.use(bodyParser.json());

app.post('/fetch', async (req, res) => {
    const { url, options } = req.body;

    try {
        if (options.agent) {
            const agentConfig = options.agent;
            if (agentConfig.proxy) {
                options.agent = new HttpProxyAgent(agentConfig.proxy);
            } else {
                options.agent = url.startsWith('http://') ? new http.Agent(agentConfig) : new https.Agent(agentConfig);
            }
        }

        const response = await fetch(url, options);
        res.json({ status: response.status });
        console.info(`${url} is UP`);
    } catch (error) {
        console.error('Fetch error:', error);
        res.status(500).json({ error: 'Fetch error', message: error.message });
    }
});

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