import { createRequire } from 'module';
const require = createRequire(import.meta.url);
const WebSocket = require('ws');

// Usar ws:// por defecto (no-TLS). Puede sobreescribirse con env WSS o WS.
const DEFAULT_WS = 'ws://browserless.bfzqqk.easypanel.host?token=e2e098863b912f6a178b68e71ec3c58d';
const DEFAULT_WSS = 'wss://browserless.bfzqqk.easypanel.host?token=e2e098863b912f6a178b68e71ec3c58d';

// Prioridad: WSS env var -> WS env var -> DEFAULT_WS
const url = process.env.WSS || process.env.WS || DEFAULT_WS;
console.log('Attempting WebSocket URL:', url);

let opened = false;
try{
  const ws = new WebSocket(url, { handshakeTimeout: 15000 });

  ws.on('open', () => {
    opened = true;
    console.log('EVENT: open');
    // send a simple ping-like frame
    try{
      ws.send(JSON.stringify({ type: 'ping', ts: Date.now() }));
      console.log('Sent ping');
    }catch(e){ console.error('SEND ERROR', e && e.message ? e.message : e); }
  });

  ws.on('message', (data) => {
    try{
      console.log('EVENT: message', typeof data === 'string' ? data : data.toString());
    }catch(e){ console.log('EVENT: message (binary)'); }
  });

  ws.on('close', (code, reason) => {
    console.log('EVENT: close', code, reason && reason.toString());
    process.exit(0);
  });

  ws.on('error', (err) => {
    console.error('EVENT: error', err && err.message ? err.message : err);
    setTimeout(()=>process.exit(1), 500);
  });

  // safety timeout
  setTimeout(()=>{
    if(!opened){
      console.error('TIMEOUT: did not open connection within 15s');
      try{ ws.terminate(); }catch(e){}
      process.exit(2);
    } else {
      console.log('INFO: connection opened, waiting 8s for messages then close');
      setTimeout(()=>{ try{ ws.close(); }catch(e){} }, 8000);
    }
  }, 15000);
}catch(e){
  console.error('FATAL:', e && e.message ? e.message : e);
  process.exit(3);
}