/* Free Shipment option */

add_filter( 'woocommerce_cart_shipping_packages', 'bulky_woocommerce_cart_shipping_packages' );

function bulky_woocommerce_cart_shipping_packages( $packages ) {
    // Reset the packages
    $packages = array();

    // Bulky items
    $bulky_items   = array();
    $regular_items = array();

    // Sort bulky from regular
    foreach ( WC()->cart->get_cart() as $item ) {
        if ( $item['data']->needs_shipping() ) {
            if ( $item['data']->get_shipping_class() == 'free' ) {
                $bulky_items[] = $item;
            } else {
                $regular_items[] = $item;
			}
        }
    }

    // Put inside packages
    if ( $bulky_items ) {
        $packages[] = array(
            'ship_via'        => array( 'flat_rate' ),
            'contents'        => $bulky_items,
            'contents_cost'   => array_sum( wp_list_pluck( $bulky_items, 'line_total' ) ),
            'applied_coupons' => WC()->cart->applied_coupons,
            'destination'     => array(
                'country'   => WC()->customer->get_shipping_country(),
                'state'     => WC()->customer->get_shipping_state(),
                'postcode'  => WC()->customer->get_shipping_postcode(),
                'city'      => WC()->customer->get_shipping_city(),
                'address'   => WC()->customer->get_shipping_address(),
                'address_2' => WC()->customer->get_shipping_address_2()
            )
        );
    }
    if ( $regular_items ) {
        $packages[] = array(
		     'contents'        => $regular_items,
            'contents_cost'   => array_sum( wp_list_pluck( $regular_items, 'line_total' ) ),
            'applied_coupons' => WC()->cart->applied_coupons,
           'destination'     => array(
              'country'   => WC()->customer->get_shipping_country(),
              'state'     => WC()->customer->get_shipping_state(),
              'postcode'  => WC()->customer->get_shipping_postcode(),
              'city'      => WC()->customer->get_shipping_city(),
              'address'   => WC()->customer->get_shipping_address(),
              'address_2' => WC()->customer->get_shipping_address_2()
            )
        );
    }

    return $packages;
}