// background/steps/fill-paypal-login.js — Step 8: Fill PayPal login email
(function attachBackgroundStep13(root, factory) {
  root.MultiPageBackgroundStep13 = factory();
})(typeof self !== 'undefined' ? self : globalThis, function createBackgroundStep13Module() {
  function createStep13Executor(deps = {}) {
    const {
      addLog,
      generateRandomEmail,
      sendToContentScriptResilient,
    } = deps;

    async function executeStep13(state) {
      await addLog('步骤 8：正在填写 PayPal 登录邮箱...');

      const email = generateRandomEmail();
      await addLog(`已生成随机邮箱: ${email}`);

      // The checkout-paypal content script auto-injects on paypal.com via manifest.
      // After Stripe form submission, the tab has redirected to paypal.com.
      await sendToContentScriptResilient('checkout-paypal', {
        type: 'EXECUTE_STEP',
        step: 8,
        source: 'background',
        payload: { email },
      });
    }

    return { executeStep13 };
  }

  return { createStep13Executor };
});