https://electriccombiboilerscompany.com/wp-content/themes/ElectricBoilers/js/lazy-reviews.js?ver=1.0

1(function () {
2  // Helper: execute any <script> tags that came inside the AJAX HTML
3  function runScripts(container) {
4    var scripts = container.querySelectorAll('script');
5    scripts.forEach(function (oldS) {
6      var s = document.createElement('script');
7      // Copy attributes (src, async, etc.)
8      for (var i = 0; i < oldS.attributes.length; i++) {
9        var a = oldS.attributes[i];
10        s.setAttribute(a.name, a.value);
11      }
12      // Inline script content
13      if (oldS.textContent) s.textContent = oldS.textContent;
14      // Replace
15      oldS.parentNode.replaceChild(s, oldS);
16    });
17  }
18
19  // Ensure Trustindex loader present, then call its init
20  function ensureTrustindexInit(cb) {
21    function callInit() {
22      if (typeof window.tiWidgetInit === 'function') {
23        try { window.tiWidgetInit(); } catch(e){}
24      }
25      if (typeof cb === 'function') cb();
26    }
27
28    // If loader already present, just init
29    if (document.querySelector('script[src*="trustindex.io/loader"]')) {
30      callInit();
31      return;
32    }
33
34    // Otherwise add loader
35    var script = document.createElement('script');
36    script.src = 'https://cdn.trustindex.io/loader.js';
37    script.onload = callInit;
38    document.body.appendChild(script);
39  }
40
41  // Load reviews via AJAX (only once)
42  var loaded = false;
43  var target = document.getElementById('lazy-reviews');
44  if (!target) return;
45
46  function loadReviews() {
47    if (loaded) return;
48    loaded = true;
49
50    fetch(REVIEWS_AJAX.url, {
51      method: 'POST',
52      headers: {'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'},
53      body: 'action=load_google_reviews'
54    })
55    .then(function (r) { return r.text(); })
56    .then(function (html) {
57      target.innerHTML = html;
58
59      // Execute <script> tags inside returned HTML
60      runScripts(target);
61
62      // Trustindex init (covers cases where scripts didn't auto-run)
63      ensureTrustindexInit();
64
65      // Safety: set lazy on any iframes that arrived
66      target.querySelectorAll('iframe').forEach(function (f) {
67        if (!f.hasAttribute('loading')) f.setAttribute('loading', 'lazy');
68      });
69    })
70    .catch(function () {
71      target.innerHTML = '<p>Failed to load reviews.</p>';
72    });
73  }
74
75  // Use IntersectionObserver (best), fallback to scroll
76  if ('IntersectionObserver' in window) {
77    var io = new IntersectionObserver(function (entries) {
78      entries.forEach(function (e) {
79        if (e.isIntersecting) {
80          loadReviews();
81          io.disconnect();
82        }
83      });
84    }, { rootMargin: '150px 0px' });
85    io.observe(target);
86  } else {
87    var onScroll = function () {
88      var rect = target.getBoundingClientRect();
89      if (rect.top < window.innerHeight + 150) {
90        loadReviews();
91        window.removeEventListener('scroll', onScroll);
92      }
93    };
94    window.addEventListener('scroll', onScroll);
95    onScroll();
96  }
97})();