function wc_setup_loop( $args = array() ) {
	$default_args = array(
		'loop'         => 0,
		'columns'      => wc_get_default_products_per_row(),
		'name'         => '',
		'is_shortcode' => false,
		'is_paginated' => true,
		'is_search'    => false,
		'is_filtered'  => false,
		'total'        => 0,
		'total_pages'  => 0,
		'per_page'     => 0,
		'current_page' => 1,
	);

	// If this is a main WC query, use global args as defaults.
	if ( $GLOBALS['wp_query']->get( 'wc_query' ) ) {
		$default_args = array_merge(
			$default_args,
			array(
				'is_search'    => $GLOBALS['wp_query']->is_search(),
				'is_filtered'  => is_filtered(),
				'total'        => $GLOBALS['wp_query']->found_posts,
				'total_pages'  => $GLOBALS['wp_query']->max_num_pages,
				'per_page'     => $GLOBALS['wp_query']->get( 'posts_per_page' ),
				'current_page' => max( 1, $GLOBALS['wp_query']->get( 'paged', 1 ) ),
			)
		);
	}

	// Merge any existing values.
	if ( isset( $GLOBALS['woocommerce_loop'] ) ) {
		$default_args = array_merge( $default_args, $GLOBALS['woocommerce_loop'] );
	}

	$GLOBALS['woocommerce_loop'] = wp_parse_args( $args, $default_args );
}