document.addEventListener('DOMContentLoaded', function () {
  var form = document.getElementById('lead-form');
  var errorBox = document.getElementById('form-error');
  var successBox = document.getElementById('form-success');
  var submitBtn = document.getElementById('form-submit');
  var formFields = document.getElementById('form-fields');

  if (!form) return;

  // FAQ accordion
  document.querySelectorAll('.faq-item__q').forEach(function (btn) {
    btn.addEventListener('click', function () {
      var item = btn.closest('.faq-item');
      var wasActive = item.classList.contains('active');
      document.querySelectorAll('.faq-item').forEach(function (i) { i.classList.remove('active'); });
      if (!wasActive) item.classList.add('active');
    });
  });

  // Smooth scroll for anchor links
  document.querySelectorAll('a[href^="#"]').forEach(function (link) {
    link.addEventListener('click', function (e) {
      var target = document.querySelector(link.getAttribute('href'));
      if (target) {
        e.preventDefault();
        target.scrollIntoView({ behavior: 'smooth', block: 'start' });
      }
    });
  });

  // Phone formatting
  var phoneInput = document.getElementById('phone');
  if (phoneInput) {
    phoneInput.addEventListener('input', function () {
      var val = phoneInput.value.replace(/\D/g, '').slice(0, 10);
      if (val.length >= 7) {
        phoneInput.value = '(' + val.slice(0, 3) + ') ' + val.slice(3, 6) + '-' + val.slice(6);
      } else if (val.length >= 4) {
        phoneInput.value = '(' + val.slice(0, 3) + ') ' + val.slice(3);
      }
    });
  }

  // Form submission
  form.addEventListener('submit', function (e) {
    e.preventDefault();
    errorBox.style.display = 'none';

    // Clear previous errors
    form.querySelectorAll('.error').forEach(function (el) { el.classList.remove('error'); });

    var name = form.querySelector('#name').value.trim();
    var email = form.querySelector('#email').value.trim();
    var phone = form.querySelector('#phone').value.trim();
    var address = form.querySelector('#address').value.trim();
    var condition = form.querySelector('#condition').value;
    var timeline = form.querySelector('#timeline').value;
    var consent = form.querySelector('#tcpa_consent').checked;
    var honeypot = form.querySelector('#website_url').value;

    // Validation
    var errors = [];
    if (!name) { errors.push('Name is required'); form.querySelector('#name').classList.add('error'); }
    if (!email || !/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) { errors.push('Valid email is required'); form.querySelector('#email').classList.add('error'); }
    if (!phone || phone.replace(/\D/g, '').length < 7) { errors.push('Valid phone is required'); form.querySelector('#phone').classList.add('error'); }
    if (!address) { errors.push('Property address is required'); form.querySelector('#address').classList.add('error'); }
    if (!consent) { errors.push('Please agree to be contacted'); }

    if (errors.length) {
      errorBox.textContent = errors[0];
      errorBox.style.display = 'block';
      return;
    }

    // Disable button
    submitBtn.disabled = true;
    submitBtn.textContent = 'Submitting...';

    fetch('/api/submit-lead', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        name: name,
        email: email,
        phone: phone,
        address: address,
        condition: condition,
        timeline: timeline,
        tcpa_consent: true,
        honeypot: honeypot,
      }),
    })
      .then(function (res) { return res.json(); })
      .then(function (data) {
        if (data.success) {
          formFields.style.display = 'none';
          successBox.style.display = 'block';
        } else {
          errorBox.textContent = data.error || 'Something went wrong. Please try again.';
          errorBox.style.display = 'block';
          submitBtn.disabled = false;
          submitBtn.textContent = 'Get My Cash Offer';
        }
      })
      .catch(function () {
        errorBox.textContent = 'Connection error. Please try again.';
        errorBox.style.display = 'block';
        submitBtn.disabled = false;
        submitBtn.textContent = 'Get My Cash Offer';
      });
  });
});