class ControllerCommonMenu extends Controller {
	public function index() {
		$this->load->language('common/menu');

		// Menu
		$this->load->model('catalog/category');
		$this->load->model('catalog/product');

		$data['categories'] = array();

		$categories = $this->model_catalog_category->getCategories(0);

		foreach ($categories as $category) {
			if ($category['top']) {
				// Check if the category has any products
				$filter_data = array('filter_category_id' => $category['category_id']);
				$total_products = $this->model_catalog_product->getTotalProducts($filter_data);
				
				// If no products in the category, skip it
				if ($total_products == 0) {
					continue;
				}

				// Level 2
				$children_data = array();
				$children = $this->model_catalog_category->getCategories($category['category_id']);

				foreach ($children as $child) {
					$filter_data = array(
						'filter_category_id'  => $child['category_id'],
						'filter_sub_category' => true
					);

					// Check if the child has products
					$total_child_products = $this->model_catalog_product->getTotalProducts($filter_data);
					
					// Skip this child if no products
					if ($total_child_products == 0) {
						continue;
					}

					$children_data[] = array(
						'name'  => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $total_child_products . ')' : ''),
						'href'  => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id'])
					);
				}

				// Level 1: Add the category to the menu only if it has products or children with products
				if (count($children_data) > 0 || $total_products > 0) {
					$data['categories'][] = array(
						'name'     => $category['name'],
						'children' => $children_data,
						'column'   => $category['column'] ? $category['column'] : 1,
						'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
					);
				}
			}
		}

		return $this->load->view('common/menu', $data);
	}
}