(function () {
  'use strict';

  var fabEl = null;

  function resolveFeedbackUrl(feedback, config) {
    if (feedback && feedback.url) {
      return feedback.url;
    }

    var meta = (config && config.meta) || {};
    var eventId = meta.eventId;
    var formId = feedback && feedback.formId;
    var webBase = meta.webBaseUrl || 'https://web.eventbuzz.live';

    if (eventId && formId) {
      return String(webBase).replace(/\/$/, '') + '/event/' + eventId + '/form/' + formId;
    }

    return '';
  }

  function openFeedback(feedback, config) {
    var url = resolveFeedbackUrl(feedback, config);
    if (!url) {
      console.warn('[feedback-fab] No feedback form URL configured.');
      return;
    }

    var target = (feedback && feedback.target) || '_blank';

    if (target === 'modal' && window.EventUpRegistrationModal && window.EventUpRegistrationModal.open) {
      window.EventUpRegistrationModal.open(url, (feedback && feedback.title) || 'Feedback');
      return;
    }

    window.open(url, '_blank', 'noopener,noreferrer');
  }

  function init(feedback, config) {
    if (!feedback || feedback.show === false) {
      if (fabEl) {
        fabEl.style.display = 'none';
      }
      return;
    }

    if (!fabEl) {
      fabEl = document.createElement('button');
      fabEl.type = 'button';
      fabEl.className = 'eventup-feedback-fab';
      fabEl.setAttribute('data-feedback-fab', 'true');
      fabEl.innerHTML = '<span class="eventup-feedback-fab__text">Feedback</span>';
      document.body.appendChild(fabEl);
    }

    fabEl.style.display = '';
    fabEl.setAttribute('aria-label', feedback.label || feedback.title || 'Feedback');

    var label = fabEl.querySelector('.eventup-feedback-fab__text');
    if (label) {
      label.textContent = feedback.label || 'Feedback';
    }

    if (fabEl.getAttribute('data-feedback-bound') === 'true') {
      return;
    }

    fabEl.setAttribute('data-feedback-bound', 'true');
    fabEl.addEventListener('click', function (event) {
      event.preventDefault();
      openFeedback(feedback, config);
    });
  }

  window.EventUpFeedbackFab = {
    init: init,
    open: openFeedback,
    resolveUrl: resolveFeedbackUrl
  };
})();