functions.php

<?php

/**
 * Autoload classes - any class that is in the includes dir with a '[NAME]_class.php file format will be autoloaded'
 */
require_once get_stylesheet_directory() . '/includes/autoloader.php';

// Require badge generation class
include( get_stylesheet_directory() . '/badge/class-america-badge-generation.php');

YALI_Autoloader::register( get_stylesheet_directory() . '/includes/' );

use Yali\Twig as Twig;
use Yali\Content_Block as Content_Block;
use Yali\Content_Block_Shortcode as Content_Block_Shortcode;
use Yali\Custom_Button_Shortcode as Custom_Button_Shortcode;
use Yali\Customize_Theme as Customize_Theme;
use Yali\Content_Type_Tax as Content_Type_Tax;
use Yali\Series_Tax as Series_Tax;


class YaliSite {

  /**
   * Initializes theme
   * Addtional initialization is done within the Corona theme, i.e. theme support, textdomain, etc
   * @see corona/lib/init.php
   * @param  string $dir absolute path to twig template directory
   */
  function __construct() {
    add_filter( 'corona_add_constants', array( $this, 'add_constants' ) );

    add_filter( 'twig_init', array( $this, 'add_to_twig' ) );
    add_action( 'init', array( $this, 'register_post_types' ) );
    add_action( 'init', array( $this, 'register_taxonomies' ) );
    add_action( 'init', array( $this, 'register_shortcodes' ) );
    add_action( 'init', array( $this, 'init_theme_settings_admin' ) );
    add_action( 'init', array(  $this, 'excerpt_more_override') );
    add_action( 'admin_menu', array( $this, 'admin_remove_menu_pages' ), 999 );
    add_action( 'admin_init', array( $this, 'admin_remove_corona_shortcode_button') );
    add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ), 5 );
    add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
    add_action( 'pre_get_posts', array( $this, 'search_filter') );
    add_filter( 'frm_notification_attachment', array( $this, 'yali_add_attachment'), 10, 3 );
    add_filter( 'frm_encode_subject', array( $this, 'frm_encode_subject') );
    add_filter( 'frm_validate_entry', array( $this, 'check_nonce'), 20, 2);
    add_action( 'wp_enqueue_scripts', array( $this, 'localize_nonce') );
    add_filter( 'wpseo_metabox_prio', array( $this, 'yoasttobottom' ) );
    add_action( 'wp_head', array( $this, 'insert_gtm_head') );
    add_action( 'tha_body_top', array( $this, 'insert_gtm_body') );
    add_action( 'wp_head', array( $this, 'insert_dap') );
    add_action( 'wp_head', array( $this, 'insert_hotjar') );
    add_action( 'tha_body_bottom', array( $this, 'insert_addthis_snippet') );
    add_filter( 'attachment_fields_to_edit', array( $this, 'yali_attachment_fields' ), 10, 2 );
    add_action( 'edit_attachment', array( $this, 'yali_update_attachment_meta' ) );
    add_action( 'wp_ajax_save-attachment-compat', array( $this, 'yali_media_custom_fields' ) );
    
    $this->twig_init();

    /*
    * Register JSON Data to WP API
    */
    require_once 'includes/wp_api_register_json.php';

    /*
    * Include Page Templates' CMB2 Fields
    */
    foreach( glob(get_stylesheet_directory() . '/includes/wp_custom_tmpl_fields/*.php') as $custom_field_file ) {
      require_once $custom_field_file;
    }

    /*
    * Add Custom Shortcode Dropdown List to TinyMCE - must be after Yali_Autoloader
    */
    require_once 'includes/tinymce_dropdown/tinymce_dropdown.php';

    /*
    * Add excerpt to pages
    */
    add_post_type_support( 'page', 'excerpt' );

    /*
    * IIP Interactive Plugin Edits
    */
    require_once get_stylesheet_directory() . '/includes/edit-iip-interactive-plugin/edit-iip-interactive.php';
  }

  function twig_init() {
    Twig::$locations = array( 'twig-templates' );
    Twig::init();
  }

  function add_constants( $constants ) {
    $yali_constants = array(
      'CHILD_THEME_VERSION' => corona_get_theme_version( get_stylesheet_directory() . '/version.json' )
    );
    $constants = array_merge( $yali_constants, $constants );
    return $constants;
  }

  /**
   * Registers custom post types
   *
   * @return void
   */
  function register_post_types() {
    Content_Block::register();
  }

  function register_taxonomies() {
    // this is where you can register custom taxonomies
    Content_Type_Tax::register();
    Series_Tax::register();
  }

  function register_shortcodes() {
    Content_Block_Shortcode::register();
    Custom_Button_Shortcode::register();
  }
  
  // Initializes admin menu to customize YALI theme
  function init_theme_settings_admin() {
    Customize_Theme::init();
  }

  function enqueue_scripts() {
    global $post;
    $module_url = self::cdp_get_option('cdp_module_url');
    $public_api = self::cdp_get_option('cdp_public_url');
    $search_indexes = self::cdp_get_option('cdp_indexes');

    $article_feed_js = $module_url . "cdp-module-article-feed/cdp-module-article-feed.min.js";
    $article_feed_css = $module_url . "cdp-module-article-feed/cdp-module-article-feed.min.css";

    if ( !has_shortcode( $post->post_content, 'course' ) ) {
      wp_enqueue_script( 'article-feed-js', $article_feed_js, null, '1.0.0', true );
      wp_enqueue_style( 'article-feed-css', $article_feed_css, null, '1.0.0' );
    }

    wp_register_script( 'yali-js', get_stylesheet_directory_uri() . '/dist/js/bundle.min.js', array('jquery'), CHILD_THEME_VERSION, true );
    wp_localize_script( 'yali-js', 'cdp', array(
      'publicAPI'  => $public_api,
      'searchIndexes'  => $search_indexes
    ));
    wp_enqueue_script( 'yali-js' );
  }

  function admin_enqueue_scripts() {
    wp_enqueue_style( 'yali-admin-css', get_stylesheet_directory_uri() . '/style-admin.css' );
  }

  function admin_remove_menu_pages() {
    if ( !current_user_can( 'manage_sites' ) ) {
      remove_menu_page('vc-welcome');
    }
  }

  function admin_remove_corona_shortcode_button(){
    $instance = TinyMce_Btn_Shortcode::instance();
    remove_filter("mce_external_plugins", array ( $instance, 'corona_add_js_to_load' ) );
  }

  function add_to_twig( $twig ) {
    /* add additional contextual functions to twig */
    return $twig;
  }

  /*
  * Excerpt Read More Edit
  */
  function excerpt_more_override() {
    remove_filter('excerpt_more', 'corona_excerpt_read_more');
    add_filter('excerpt_more', function($more) {
      global $post;
      return '&nbsp; <a href="' . get_permalink($post->ID) . '"> Read More...</a>';
    });
  }

  /*
  * Edit Search Query - Query only Posts
  */
  function search_filter($query) {
    if( $query->is_main_query() && $query->is_search() ) {
      $query->set('post_type', array('post', 'page'));
      $query->set('posts_per_page', '-1');
    }
  }

  // Helpers
  public static function cdp_get_option( $key = '', $default = false ) {
    if ( function_exists( 'cmb2_get_option' ) ) {
      // Use cmb2_get_option as it passes through some key filters.
      return cmb2_get_option( 'cdp_options', $key, $default );
    }

    // Fallback to get_option if CMB2 is not loaded yet.
    $opts = get_option( 'cdp_options', $default );
    $val = $default;

    if ( 'all' == $key ) {
      $val = $opts;
    } elseif ( is_array( $opts ) && array_key_exists( $key, $opts ) && false !== $opts[ $key ] ) {
      $val = $opts[ $key ];
    }

    return $val;
  }

  /* CERTIFICATES */
  // Add attachment using the Formidable 'frm_notification_attachment' hook
  function yali_add_attachment( $attachments, $form, $args ) {
    if ( $form->form_key == 'get_certificate2' || $form->form_key == 'get_certificate_fr' || $form->form_key == 'get_certificate_pt' || $form->form_key == 'get_card' ) {

      $params = array (
        'key'				=>  $form->form_key,				// form identifier (i.e. project id used to find config)
        'metas'			=>  $args['entry']->metas		// formidable metas passed in via $args that hold field values
      );

      $generator = new America_Badge_Generation ();
      $attachments[] =  $generator->create_image( $params );
   }
    return $attachments;
  }

  // Disable Formidable subject encoding
  function frm_encode_subject() {
      return false;
  }
  /* END CERTIFICATES */

  /* COURSES TOKEN */
  // Send token data for Course
  function localize_nonce() {

    include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    $requiredplugin = 'wp-simple-nonce/wp-simple-nonce.php';

    if ( is_plugin_active($requiredplugin) ) {
      global $post;

      if ( is_a( $post, 'WP_Post' ) && has_shortcode( $post->post_content, 'course' ) ) {
        $nonce = WPSimpleNonce::init( 'certificate', 2592000, true );
        wp_enqueue_script( 'token-js', get_stylesheet_directory_uri() . '/assets/js/token.js', array() );
        wp_localize_script( 'token-js', 'token', $nonce );
      }
    }
  }

  //Validate token data for Course
  function check_nonce( $errors, $values ) {

    include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    $requiredplugin = 'wp-simple-nonce/wp-simple-nonce.php';

    if ( is_plugin_active($requiredplugin) ) {

      if( $values['form_key'] == 'get_certificate2' && strpos($_POST["_wp_http_referer"], 'get-quiz-certificate') !== false && empty($errors) ) {

        $result = WPSimpleNonce::checkNonce($_GET['tokenName'], $_GET['tokenValue']);

        if ( ! $result ) {
           $errors['my_error'] = 'This certificate page has expired. Please return to the quiz and complete it again to generate your certificate.';
        }
      }

      if( $values['form_key'] == 'get_certificate_fr' && strpos($_POST["_wp_http_referer"], 'obtenez-votre-certificat') !== false && empty($errors) ) {

        $result = WPSimpleNonce::checkNonce($_GET['tokenName'], $_GET['tokenValue']);

        if ( ! $result ) {
           $errors['my_error'] = 'Cette page a expiré. Veuillez repasser le quiz pour générer votre certificat.';
        }
      }
    }

    return $errors;
  }
  /* END COURSES TOKEN */

  // Move Yoast to bottom
  function yoasttobottom() {
    return 'low';
  }

  /* ANALYTICS */
  // Inserts Google Analytics snippet into head
  function insert_google_analytics() {
    ?>
      <!-- Google Analytics -->
      <script>
      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
      })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

      ga('create', 'UA-22995010-23', 'auto');
      ga('send', 'pageview');
      </script>
      <!-- End Google Analytics -->
    <?php
  }

  // Inserts Google Tag Manager snippets into head and body
  function insert_gtm_head() {
    ?>
      <!-- Google Tag Manager -->
      <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
      new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
      j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
      'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
      })(window,document,'script','dataLayer','GTM-TTR686');</script>
      <!-- End Google Tag Manager -->
    <?php
  }

  function insert_gtm_body() {
    ?>
    <!-- Google Tag Manager (noscript) -->
    <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TTR686"
    height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
    <!-- End Google Tag Manager (noscript) -->
    <?php
  }

  // Inserts Digital Analytics Program (DAP) code
  function insert_dap(){
    ?>
      <!-- Digital Analytics Program -->
      <script async type="text/javascript" src="https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOS&siteplatform=YALI" id="_fed_an_ua_tag"></script>
      <!-- End Digital Analytics Program -->
    <?php
  }

  // Insert Hotjar Tagging
  function insert_hotjar() {
    ?>
    <!-- Hotjar Tracking  -->
    <script>
        (function(h,o,t,j,a,r){
            h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)};
            h._hjSettings={hjid:690455,hjsv:6};
            a=o.getElementsByTagName('head')[0];
            r=o.createElement('script');r.async=1;
            r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv;
            a.appendChild(r);
        })(window,document,'https://static.hotjar.com/c/hotjar-','.js?sv=');
    </script>
    <!-- End Hotjar Tracking  -->
    <?php
  }
  /* END ANALYTICS */

  // Adds social share button from Addthis
  function insert_addthis_snippet() {
    ?>
    <!-- Go to www.addthis.com/dashboard to customize your tools -->
    <script type="text/javascript">
      (function() {
        if (document.attachEvent ? document.readyState === 'complete' : document.readyState !== 'loading') {
          yaliAddThis();
        } else {
          document.addEventListener('DOMContentLoaded', yaliAddThis);
        }

        function yaliAddThis() {
          var tag = document.createElement('script');
              tag.type = 'text/javascript';
              tag.src = 'https://s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5a18345cba3f0930';
          document.getElementsByTagName('body')[0].appendChild(tag);
        }
      }());
    </script>
    <?php
  }

  /**
   * Add custom attribution field to media attachments
   */
  function yali_attachment_fields( $fields, $post ) {
    $attribution_value = get_post_meta($post->ID, '_attribution', true);
    $fields['attribution'] = array(
      'label' => __( 'Attribution' ),
      'input' => 'text',
      'value' => $attribution_value,
      'show_in_edit' => true
    );
    return $fields;         
  }

  /**
   * Update custom attribution field on save
   */
  function yali_update_attachment_meta( $attachment ) {
    $attribution = isset( $_POST['attachments'][$attachment]['attribution'] ) ? $_POST['attachments'][$attachment]['attribution'] : false;
    update_post_meta($attachment, '_attribution', $attribution);
    return;
  }

  /**
   * Update custom attribution field via ajax
   */
  function yali_media_custom_fields() {
    $post_id = $_POST['id'];
    $meta = $_POST['attachments'][$post_id]['attribution'];
    update_post_meta($post_id, '_attribution', $meta);
    clean_post_cache($post_id);
  }
}

new YaliSite();