/**
 * Content script for USAC E-File (forms.universalservice.org)
 *
 * Injects a guidance overlay when on the USAC access management pages
 * to help the client grant filing access to filings@performancewest.net.
 */
(function() {
  'use strict';

  const PW_EMAIL = 'filings@performancewest.net';

  // Wait for page to load
  setTimeout(injectGuidance, 2000);

  function injectGuidance() {
    // Look for access management or user forms
    const emailFields = document.querySelectorAll('input[type="text"][name*="email"], input[type="email"], input[name*="user"]');

    // Inject floating helper banner
    const banner = document.createElement('div');
    banner.id = 'pw-usac-helper';
    banner.innerHTML = `
      <div style="position:fixed;bottom:20px;right:20px;z-index:99999;background:#1e3a5f;color:white;padding:16px 20px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,0.2);max-width:320px;font-family:-apple-system,sans-serif;">
        <div style="display:flex;justify-content:space-between;align-items:start;">
          <strong style="font-size:13px;">Performance West Helper</strong>
          <button id="pw-close-usac" style="background:none;border:none;color:#94a3b8;cursor:pointer;font-size:18px;line-height:1;">&times;</button>
        </div>
        <p style="font-size:11px;color:#94a3b8;margin:8px 0;">Grant filing access to this email for your 499 Filer ID:</p>
        <div style="background:#2d4a73;padding:8px 12px;border-radius:6px;font-family:monospace;font-size:13px;cursor:pointer;user-select:all;" id="pw-email-copy-usac">${PW_EMAIL}</div>
        <p style="font-size:10px;color:#64748b;margin-top:8px;">Click to copy. Navigate to "Manage Users" or "Authorized Contacts" and add this email with filing permissions.</p>
      </div>
    `;
    document.body.appendChild(banner);

    document.getElementById('pw-close-usac')?.addEventListener('click', () => banner.remove());

    document.getElementById('pw-email-copy-usac')?.addEventListener('click', () => {
      navigator.clipboard.writeText(PW_EMAIL).then(() => {
        const el = document.getElementById('pw-email-copy-usac');
        if (el) { el.textContent = 'Copied!'; setTimeout(() => el.textContent = PW_EMAIL, 1500); }
      });
    });

    // Auto-fill email fields if empty
    emailFields.forEach(field => {
      if (!field.value) {
        field.value = PW_EMAIL;
        field.style.backgroundColor = '#eff6ff';
        field.style.borderColor = '#93c5fd';
      }
    });
  }
})();