(function () {
// Early exit if the page doesn't have our UI
document.addEventListener('DOMContentLoaded', function () {
console.log('[HG] JS loaded');
// Sanity checks
if (!window.hg_ajax_obj || !window.hg_ajax_obj.ajaxurl) {
console.error('[HG] ajaxurl missing. Is the PHP snippet active?');
return;
}
var grid = document.getElementById('product-grid');
if (!grid) {
console.error('[HG] #product-grid not found. Set the CSS ID on the section containing the Woo Products widget.');
return;
}
// Use event delegation so columns/buttons/inner elements all work
document.addEventListener('click', function (e) {
var btn = e.target.closest('.ajax-filter-btn');
if (!btn) return;
e.preventDefault();
// Read tag from data attribute
var tag = btn.getAttribute('data-tag');
if (!tag) {
console.warn('[HG] Clicked filter has no data-tag');
return;
}
// Active state
document.querySelectorAll('.ajax-filter-btn.active').forEach(function (el) {
el.classList.remove('active');
});
btn.classList.add('active');
// Loading state
grid.classList.add('loading');
console.log('[HG] Sending AJAX for tag:', tag, '→', window.hg_ajax_obj.ajaxurl);
// AJAX (fetch)
var form = new FormData();
form.append('action', 'heatinggreen_filter_products');
form.append('tag', tag);
fetch(window.hg_ajax_obj.ajaxurl, {
method: 'POST',
credentials: 'same-origin',
body: form
})
.then(function (r) { return r.json(); })
.then(function (json) {
if (!json) {
console.error('[HG] Empty JSON response');
return;
}
if (json.success) {
grid.innerHTML = json.data.html;
console.log('[HG] Updated grid for tag:', tag);
} else {
console.error('[HG] Server error:', json.data && json.data.message ? json.data.message : json);
}
})
.catch(function (err) {
console.error('[HG] AJAX error:', err);
})
.finally(function () {
grid.classList.remove('loading');
});
});
});
})();
