const browser = require('../browser');

module.exports = async ({ expression, selector = null }) => {
  if (!expression) throw new Error('Expression é obrigatória');
  await browser.start();
  
  if (selector) {
    const result = await browser.evaluateOnSelector(selector, expression);
    return { success: true, action: 'evaluate_js', selector, result };
  }
  
  const result = await browser.evaluateJS(expression);
  return { success: true, action: 'evaluate_js', result };
};