Only Allow one bump selection from given array of bump ids

Only Allow one bump selection from given array of bump ids

class WFOB_Single_Bump_Selector {

    private $bump_ids = array( 3094, 3095 ); // ← Your bump IDs here

    public function __construct() {
        add_action( 'wfob_before_add_to_cart', array( $this, 'remove_other_bumps' ), 5 );
        add_action( 'wp_footer', array( $this, 'uncheck_other_bumps_js' ) );
    }
  
    public function remove_other_bumps( $post ) {

        $bump_id = absint( $post['wfob_id'] ?? 0 );

        if ( ! in_array( $bump_id, $this->bump_ids, true ) ) {
            return;
        }

        $cart = WC()->cart;
        if ( ! $cart ) {
            return;
        }

        foreach ( $cart->get_cart() as $cart_key => $cart_item ) {
            if ( empty( $cart_item['_wfob_options'] ) ) {
                continue;
            }

            $item_bump_id = absint( $cart_item['_wfob_options']['_wfob_id'] ?? $cart_item['_wfob_options']['bump_id'] ?? 0 );

            if ( $item_bump_id !== $bump_id && in_array( $item_bump_id, $this->bump_ids, true ) ) {
                // Use WFOB's own remove path: it restores replaced lines *before* removing the bump,
                // so the cart is not empty when "replace all" runs for the next bump (raw
                // remove_cart_item after stripping _wfob_swap_cart_key left an empty cart).
                if ( class_exists( 'WFOB_Common' ) ) {
                    WFOB_Common::remove_bump_from_cart(
                        array(
                            'cart_key' => $cart_key,
                            'wfob_id'  => $item_bump_id,
                        )
                    );
                } else {
                    $cart->remove_cart_item( $cart_key );
                }
            }
        }
    }

    public function uncheck_other_bumps_js() {

        if ( ! is_checkout() ) {
            return;
        }

        $bump_ids_js = wp_json_encode( $this->bump_ids );
        ?>
        <script type="text/javascript">
        jQuery(function($) {
            var bumpIds = <?php echo $bump_ids_js; ?>;

            function getBumpId($checkbox) {
                var $wrapper = $checkbox.closest('[id^="wfob_wrapper_"]');
                if ( $wrapper.length ) {
                    return parseInt( $wrapper.attr('id').replace('wfob_wrapper_', ''), 10 );
                }
                return 0;
            }

            $(document.body).on('change', '#wfob_wrap input[type="checkbox"]', function() {
                var $current = $(this);
                var currentBumpId = getBumpId($current);

                if ( ! $current.is(':checked') || bumpIds.indexOf(currentBumpId) === -1 ) {
                    return;
                }

                $('#wfob_wrap input[type="checkbox"]').not($current).each(function() {
                    var $cb = $(this);
                    var cbBumpId = getBumpId($cb);

                    if ( bumpIds.indexOf(cbBumpId) !== -1 && $cb.is(':checked') ) {
                        $cb.prop('checked', false);
                    }
                });
            });
        });
        </script>
        <?php
    }
}

new WFOB_Single_Bump_Selector();