#!/usr/bin/env node
/**
 * 本地转发代理：当手机无法直连 pre-ai.petsheroai.xyz 时使用
 * 电脑能访问域名，手机连电脑同一 WiFi，通过此代理转发请求
 *
 * 使用：
 *   1. 手机和电脑连同一 WiFi
 *   2. 运行: node scripts/dev_proxy.js
 *   3. 在 api_config.dart 中设置 debugBaseUrlOverride = 'http://<电脑IP>:8010'
 *   4. 手机运行 app
 *
 * 获取电脑 IP: ifconfig (Mac/Linux) 或 ipconfig (Windows)
 */

const http = require('http');
const https = require('https');

const TARGET = 'https://pre-ai.petsheroai.xyz';
const PORT = 8010;

const server = http.createServer((req, res) => {
  const url = TARGET + req.url;
  console.log(`[${new Date().toISOString()}] ${req.method} ${req.url} -> ${url}`);

  const options = {
    hostname: 'pre-ai.petsheroai.xyz',
    port: 443,
    path: req.url,
    method: req.method,
    headers: { ...req.headers, host: 'pre-ai.petsheroai.xyz' },
  };

  const proxy = https.request(options, (proxyRes) => {
    res.writeHead(proxyRes.statusCode, proxyRes.headers);
    proxyRes.pipe(res);
  });

  proxy.on('error', (e) => {
    console.error('Proxy error:', e.message);
    res.writeHead(502);
    res.end('Proxy error: ' + e.message);
  });

  req.pipe(proxy);
});

server.listen(PORT, '0.0.0.0', () => {
  console.log(`Dev proxy listening on http://0.0.0.0:${PORT}`);
  console.log(`Forwarding to ${TARGET}`);
  console.log('Set debugBaseUrlOverride = "http://<YOUR_IP>:8010" in api_config.dart');
});