/**
 * AKSRT Product Archive — 商品归档页交互
 *
 * 处理商品分类/标签归档页的筛选、排序和加载更多。
 *
 * @package AKSRT
 */

(function () {
    'use strict';

    var grid = document.getElementById('aksrt-product-grid');
    if (!grid) return;

    // 商品卡片懒加载图片观察器
    if ('IntersectionObserver' in window) {
        var imgObserver = new IntersectionObserver(function (entries) {
            entries.forEach(function (entry) {
                if (entry.isIntersecting) {
                    var img = entry.target;
                    if (img.dataset.src) {
                        img.src = img.dataset.src;
                        img.removeAttribute('data-src');
                    }
                    imgObserver.unobserve(img);
                }
            });
        }, { rootMargin: '200px' });

        grid.querySelectorAll('img[data-src]').forEach(function (img) {
            imgObserver.observe(img);
        });
    }

    // 商品卡片 hover 效果增强
    grid.querySelectorAll('.aksrt-product-card').forEach(function (card) {
        card.addEventListener('mouseenter', function () {
            this.classList.add('aksrt-product-card--hover');
        });
        card.addEventListener('mouseleave', function () {
            this.classList.remove('aksrt-product-card--hover');
        });
    });
})();