functions.php

<?php

// style and scripts
add_action('wp_enqueue_scripts', 'bootscore_child_enqueue_styles');
function bootscore_child_enqueue_styles() {

  // style.css
  wp_enqueue_style('parent-style', get_template_directory_uri() . '/style.css');

  // Compiled main.css
  $modified_bootscoreChildCss = date('YmdHi', filemtime(get_stylesheet_directory() . '/css/main.css'));
  wp_enqueue_style('main', get_stylesheet_directory_uri() . '/css/main.css', array('parent-style'), $modified_bootscoreChildCss);

  // custom.js
  wp_enqueue_script('custom-js', get_stylesheet_directory_uri() . '/js/custom.js', false, '', true);
}

/**
 * Register widget area.
 *
 * @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
 */
// Widgets
if (!function_exists('bootscore_widgets_init')) :

  function bootscore_widgets_init() {

    // Top Nav
    register_sidebar(array(
      'name'          => esc_html__('Top Nav', 'bootscore'),
      'id'            => 'top-nav',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="ms-3">',
      'after_widget'  => '</div>',
      'before_title'  => '<div class="widget-title d-none">',
      'after_title'   => '</div>'
    ));
    // Top Nav End

    // Top Nav Search
    register_sidebar(array(
      'name'          => esc_html__('Top Nav Search', 'bootscore'),
      'id'            => 'top-nav-search',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="top-nav-search">',
      'after_widget'  => '</div>',
      'before_title'  => '<div class="widget-title d-none">',
      'after_title'   => '</div>'
    ));
    // Top Nav Search End

    // Sidebar
    register_sidebar(array(
      'name'          => esc_html__('Sidebar', 'bootscore'),
      'id'            => 'sidebar-1',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<section id="%1$s" class="widget %2$s card card-body mb-4 bg-light border-0">',
      'after_widget'  => '</section>',
      'before_title'  => '<h2 class="widget-title card-title border-bottom py-2">',
      'after_title'   => '</h2>',
    ));
    // Sidebar End

    // Top Footer
    register_sidebar(array(
      'name'          => esc_html__('Top Footer', 'bootscore'),
      'id'            => 'top-footer',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget mb-5">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title">',
      'after_title'   => '</h2>'
    ));
    // Top Footer End

    // Footer 1
    register_sidebar(array(
      'name'          => esc_html__('Footer 1', 'bootscore'),
      'id'            => 'footer-1',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget mb-4">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title h4">',
      'after_title'   => '</h2>'
    ));
    // Footer 1 End

    // Footer 2
    register_sidebar(array(
      'name'          => esc_html__('Footer 2', 'bootscore'),
      'id'            => 'footer-2',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget mb-4">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title h4">',
      'after_title'   => '</h2>'
    ));
    // Footer 2 End

    // Footer 3
    register_sidebar(array(
      'name'          => esc_html__('Footer 3', 'bootscore'),
      'id'            => 'footer-3',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget mb-4">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title h4">',
      'after_title'   => '</h2>'
    ));
    // Footer 3 End

    // Footer 4
    register_sidebar(array(
      'name'          => esc_html__('Footer 4', 'bootscore'),
      'id'            => 'footer-4',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget mb-4">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title h4">',
      'after_title'   => '</h2>'
    ));
    // Footer 4 End

    // 404 Page
    register_sidebar(array(
      'name'          => esc_html__('404 Page', 'bootscore'),
      'id'            => '404-page',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="mb-4">',
      'after_widget'  => '</div>',
      'before_title'  => '<h1 class="widget-title">',
      'after_title'   => '</h1>'
    ));
    // 404 Page End

    // Bottom Footer
    register_sidebar(array(
      'name'          => esc_html__('Bottom Footer', 'bootscore'),
      'id'            => 'bottom-footer',
      'description'   => esc_html__('Add widgets here.', 'bootscore'),
      'before_widget' => '<div class="footer_widget">',
      'after_widget'  => '</div>',
      'before_title'  => '<h2 class="widget-title">',
      'after_title'   => '</h2>'
    ));

  }
  add_action('widgets_init', 'bootscore_widgets_init');

endif;
// Widgets END

/**
 * Onion service functions and definitions.
 *
 * Implements multi-domain support for onion domains using WordPress filter hooks.
 *
 * Acknowledgements: https://blog.paranoidpenguin.net/2017/09/how-to-configure-wordpress-as-a-tor-hidden-service/
 */

if ($_SERVER["HTTP_HOST"] == 'testing.onion') {
	add_filter('option_home', 'rewrite_permalinks');
	add_filter('option_siteurl', 'rewrite_permalinks');
	#add_filter('bloginfo', 'rewrite_blogname');
	#add_filter('option_blogname', 'rewrite_blogname');
	add_filter('post_link', 'rewrite_permalinks');
	add_filter('page_link', 'rewrite_permalinks');
	add_filter('post_type_link', 'rewrite_permalinks');
	add_filter('category_link', 'rewrite_permalinks');
	add_filter('tag_link', 'rewrite_permalinks');
	add_filter('author_link', 'rewrite_permalinks');
	add_filter('day_link', 'rewrite_permalinks');
	add_filter('month_link', 'rewrite_permalinks');
	add_filter('year_link', 'rewrite_permalinks');
	add_filter('nav_menu_link_attributes', 'rewrite_permalinks');
	add_filter('includes_url', 'rewrite_permalinks');
	add_filter('content_url', 'rewrite_permalinks');
	add_filter('admin_url', 'rewrite_permalinks');
	add_filter('feed_link', 'rewrite_permalinks');
	add_filter('stylesheet_uri', 'rewrite_permalinks');
	add_filter('attachment_link', 'rewrite_permalinks');
	add_filter('wp_get_attachment_image_src', 'rewrite_permalinks');
	add_filter('wp_get_attachment_link', 'rewrite_permalinks');
	add_filter('the_excerpt', 'rewrite_permalinks');
	add_filter('the_content', 'rewrite_permalinks');
}

function rewrite_blogname($content) {
	$content = str_replace('Centre for Postdigital Cultures', 'Centre for Postdigital Cultures: onion service', $content);
	return $content;
}

function rewrite_permalinks($content) {
	$content = preg_replace('/https?:\/\/postdigitalcultures.org/', 'http://testing.onion', $content);
	return $content;
}

/**
* Prints HTML with meta information for the current post-date/time.
* Overwrites existing ./inc/template-tags.php function
*/
  function bootscore_date() {
    $time_string = '<time class="entry-date whatever published updated" datetime="%1$s">%2$s</time>';
    // if (get_the_time('U') !== get_the_modified_time('U')) {
    //   $time_string = '<time class="entry-date published" datetime="%1$s">%2$s</time> <span class="time-updated-separator">/</span> <time class="updated" datetime="%3$s">%4$s</time>';
    // }

    $time_string = sprintf(
      $time_string,
      esc_attr(get_the_date(DATE_W3C)),
      esc_html(get_the_date()),
      //esc_attr(get_the_modified_date(DATE_W3C)),
      //esc_html(get_the_modified_date())
    );

    $posted_on = sprintf(
      /* translators: %s: post date. */
      '%s',
      '<span rel="bookmark">' . $time_string . '</span>'
    );

    echo '<span class="posted-on">' . $posted_on . '</span>'; // WPCS: XSS OK.

  }

/**
* function to add custom JavaScript
*/
function custom_javascript() {
    ?>
      <script>
        try {
          // jQuery to wrap project-blocks in their own div
          jQuery(".project-block").wrapAll( "<div id='project-blocks-wrapper' />");
          // select that div
          var collection = document.querySelector('#project-blocks-wrapper');
          // randomise the children of that wrapper div
          for (var i = collection.children.length; i >= 0; i--) {
            collection.appendChild(collection.children[Math.random() * i | 0]);
          }
          if (jQuery("body").hasClass("home")) {
            // remove all but 6 children from the wrapper
            for (var x = collection.children.length - 1; x >= 3; x--) {
              collection.children[x].remove()
            }
          }
        } catch (error) {
          console.error(error);
        }

        // try {
        //   // jQuery to wrap publication-blocks in their own div
        //   jQuery(".publications-block").wrapAll( "<div id='publications-block-wrapper' />");
        //   // select that div
        //   var collection = document.querySelector('#publications-block-wrapper');
        //   // randomise the children of that wrapper div
        //   for (var i = collection.children.length; i >= 0; i--) {
        //     collection.appendChild(collection.children[Math.random() * i | 0]);
        //   }
        // } catch (error) {
        //   console.error(error);
        // }
      </script>
    <?php
}
add_action('wp_footer', 'custom_javascript');