wcfm-remove-external-links-from-product-description

add_action('after_wcfm_products_manage', function() {
    ?>
    <script>
    jQuery(function($) {
        function removeExternalLinks(htmlContent) {
            if (!htmlContent) return htmlContent;

            const tempDiv = document.createElement('div');
            tempDiv.innerHTML = htmlContent;

            const links = tempDiv.getElementsByTagName('a');

            for (let i = links.length - 1; i >= 0; i--) {
                const link = links[i];
                const href = link.getAttribute('href');

                if (isExternalLink(href)) {
                    const textNode = document.createTextNode(link.textContent);
                    link.parentNode.replaceChild(textNode, link);
                }
            }

            return tempDiv.innerHTML;
        }

        function isExternalLink(url) {
            if (!url) return false;

            const internalPrefixes = [
                '#', '/', './', '../',
                'mailto:', 'tel:',
                'javascript:',
                window.location.origin
            ];

            if (internalPrefixes.some(prefix =>
                typeof prefix === 'string' && url.startsWith(prefix)
            )) {
                return false;
            }

            try {
                const linkURL = new URL(url, window.location.origin);
                return linkURL.hostname !== window.location.hostname;
            } catch (e) {
                return true;
            }
        }

        $('#wcfm_products_simple_submit_button').on('mousedown', function(e) {
            const excerptContent = getWCFMEditorContent('excerpt');
            if (excerptContent) {
                const modifiedExcerpt = removeExternalLinks(excerptContent);
                if (typeof tinymce != 'undefined' && tinymce.get('excerpt') != null) {
                    tinymce.get('excerpt').setContent(modifiedExcerpt);
                } else {
                    $('#excerpt').val(modifiedExcerpt);
                }
            }

            const descriptionContent = getWCFMEditorContent('description');
            if (descriptionContent) {
                const modifiedDescription = removeExternalLinks(descriptionContent);
                if (typeof tinymce != 'undefined' && tinymce.get('description') != null) {
                    tinymce.get('description').setContent(modifiedDescription);
                } else {
                    $('#description').val(modifiedDescription);
                }
            }
        });
    });
    </script>
    <?php
});