functions.php

<?php
/**
 * ictuwp-theme-gc2020
 * https://github.com/ICTU/ictuwp-theme-gc2020
 *
 * @package  WordPress
 * @subpackage  Timber
 * @since   Timber 0.1
 */

define( 'ID_MAINCONTENT', 'maincontent' );
define( 'ID_MAINNAV', 'mainnav' );
define( 'ID_ZOEKEN', 'zoeken' );
define( 'ID_SKIPLINKS', 'skiplinksjes' );

define( 'DEFAULTFLAVOR', 'GC' );
define( 'FLAVORSCONFIG', 'flavors_config.json' );

// Custom Post Types
if ( ! defined( 'GC_TIP_CPT' ) ) {
	define( 'GC_TIP_CPT', 'tips' );
}
if ( ! defined( 'GC_SPOTLIGHT_CPT' ) ) {
	define( 'GC_SPOTLIGHT_CPT', 'spotlight' );
}

// Custom Taxonomies
if ( ! defined( 'GC_TIPTHEMA' ) ) {
	define( 'GC_TIPTHEMA', 'tipthema' );
}
if ( ! defined( 'OD_CITAATAUTEUR' ) ) {
	define( 'OD_CITAATAUTEUR', 'tipgever' );
}

if ( ! defined( 'GC_TWITTER_URL' ) ) {
	define( 'GC_TWITTER_URL', 'https://twitter.com/' );
}
if ( ! defined( 'GC_TWITTERACCOUNT' ) ) {
	define( 'GC_TWITTERACCOUNT', 'gebrcentraal' );
}

// Gutenberg block editor ook voor events actief maken
define( 'EM_GUTENBERG', true );

// constants for image sizes
define( 'BLOG_SINGLE_MOBILE', 'blog-single-mobile' );
define( 'BLOG_SINGLE_TABLET', 'blog-single-tablet' );
define( 'BLOG_SINGLE_DESKTOP', 'blog-single-desktop' );
define( 'HALFWIDTH', 'halfwidth' );
define( 'IMG_SIZE_HUGE', 'feature-huge' );
define( 'IMG_SIZE_HUGE_MIN_WIDTH', 1200 );
define( 'IMAGESIZE_16x9', 'image-16x9' );
define( 'IMAGESIZE_HERO_IMAGE', 'hero-image' );

//========================================================================================================

//specific flavours functions

$get_theme_option = get_option( 'gc2020_theme_options' );
$flavor_select    = isset( $get_theme_option['flavor_select'] ) ? $get_theme_option['flavor_select'] : '';


if ( $flavor_select == "OD" ) {
	require_once( __DIR__ . '/assets/od.php' );
	add_action( 'init', [ 'ICTUWP_GC_OD_registerposttypes', 'init' ], 1 );
}

//========================================================================================================
/*
 * Extra functionaliteit en filters voor de Events Manager
 */
require_once( get_template_directory() . '/includes/events-manager-functions.php' );

//========================================================================================================


// add the widgets
if ( ! defined( 'WBVB_GC_ABOUTUS' ) ) {
	define( 'WBVB_GC_ABOUTUS', 'GC - Over ons' );
}
require_once( get_template_directory() . '/widgets/widget-over-ons.php' );

// add the gutenberg blocks
require_once( get_template_directory() . '/gutenberg-blocks/gutenberg-settings.php' );
require_once( get_template_directory() . '/gutenberg-blocks/download-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/cta-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/related-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/textimage-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/links-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/spotlight-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/rijksvideo-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/teaser-block.php' );

// TODO: het block voor de handleiding zou alleen beschikbaar voor pagina's met het template 'template-od-handleiding.php'
require_once( get_template_directory() . '/gutenberg-blocks/handleiding-block.php' );
require_once( get_template_directory() . '/gutenberg-blocks/spelleiders-block.php' );

// block voor het tonen van tipkaarten
require_once( get_template_directory() . '/gutenberg-blocks/tipkaarten-block.php' );

// block voor het tonen van partnerlogo's
require_once( get_template_directory() . '/gutenberg-blocks/partnerlogos-block.php' );

// block voor het tonen van aankomende events
require_once( get_template_directory() . '/gutenberg-blocks/events-block.php' );

// block voor testimonials
require_once( get_template_directory() . '/gutenberg-blocks/testimonial-block.php' );


/**
 * Load other dependencies such as VAR DUMPER :D
 */
$composer_autoload = __DIR__ . '/vendor/autoload.php';
if ( file_exists( $composer_autoload ) ) {
	require_once $composer_autoload;
}

/**
 * This ensures that Timber is loaded and available as a PHP class.
 * If not, it gives an error message to help direct developers on where to
 * activate
 */
if ( ! class_exists( 'Timber' ) ) {

	add_action( 'admin_notices', function () {
		echo '<div class="error"><p>Timber not activated. Make sure you activate the plugin in <a href="' . esc_url( admin_url( 'plugins.php#timber' ) ) . '">' . esc_url( admin_url( 'plugins.php' ) ) . '</a></p></div>';
	} );

	add_filter( 'template_include', function ( $template ) {
		return get_stylesheet_directory() . '/static/no-timber.html';
	} );

	return;
}

/**
 * Sets the directories (inside your theme) to find .twig files
 */
Timber::$dirname = [ 'templates', 'views' ];

/**
 * By default, Timber does NOT autoescape values. Want to enable Twig's
 * autoescape? No prob! Just set this value to true
 */
Timber::$autoescape = false;


/**
 * We're going to configure our theme inside of a subclass of Timber\Site
 * You can move this to its own file and include here via php's
 * include("MySite.php")
 */
class GebruikerCentraalTheme extends Timber\Site {

	// contains configuration settings
	protected $configuration;

	/** Add timber support. */
	public function __construct() {

		// custom menu locations
		add_action( 'init', [ $this, 'register_my_menu' ] );

		// custom menu locations
		add_action( 'init', [ $this, 'register_spotlight_cpt' ] );


		// translation support
		add_action( 'after_setup_theme', [ $this, 'add_translation_support' ] );

		// theme options
		add_action( 'after_setup_theme', [ $this, 'theme_supports' ] );

		// CSS setup
		add_action( 'wp_enqueue_scripts', [ $this, 'gc_wbvb_add_css' ] );

		add_action( 'timber/context', [ $this, 'add_to_context' ] );
		add_action( 'timber/twig', [ $this, 'add_to_twig' ] );

		add_action( 'init', [ $this, 'register_taxonomies' ] );

		add_action( 'widgets_init', [ $this, 'setup_widgets_init' ] );

		add_action( 'theme_page_templates', [
			$this,
			'activate_deactivate_page_templates',
		] );

		add_action( 'admin_init', [ $this, 'add_adminstyles' ] );

		parent::__construct();

	}

	// define menu location and name
	public function register_my_menu() {
		register_nav_menu( 'primary', _x( 'Menu in header', 'menu location', 'gctheme' ) );
		register_nav_menu( 'footermenu', _x( 'Menu in footer', 'menu location', 'gctheme' ) );
	}

	function add_translation_support() {
		load_theme_textdomain( 'gctheme', get_template_directory() . '/languages' );
	}


	/** This is where you can register custom taxonomies. */
	public function register_taxonomies() {

	}

	/** This is where you add some context
	 *
	 * @param string $context context['this'] Being the Twig's {{ this }}.
	 */
	public function read_configuration_files() {

		// read configuration json file
		$configfile    = file_get_contents( trailingslashit( get_stylesheet_directory() ) . FLAVORSCONFIG );
		$configfile    = json_decode( $configfile, true );
		$theme_options = get_option( 'gc2020_theme_options' );
		$flavor        = DEFAULTFLAVOR; // default, tenzij er een smaakje is gekozen
		if ( isset( $theme_options['flavor_select'] ) ) {
			$flavor = $theme_options['flavor_select'];
		}
		if ( isset( $configfile[ DEFAULTFLAVOR ] ) ) {
			$defaultsettings = $configfile[ DEFAULTFLAVOR ];
		} else {
			// iemand heeft een typvaud gemaakt en de in dit bestand hier
			// gedefinieerde default staat niet in het json-bestand.
			// Beetje jammer, maar dan nemen we -op hoop van zegen- het
			// eerste setje configuratieregels
			$defaultsettings = reset( $configfile );
		}

		if ( isset( $configfile[ $flavor ] ) ) {
			// admin has chosen a flavor (any flavor), so let's
			// merge the configuration of chosen flavor with the default settings
			$this->configuration = wp_parse_args( $configfile[ $flavor ], $defaultsettings );

		} else {
			// no flavor chosen, so set the configuration to the default settings
			$this->configuration = $defaultsettings;
		}

	}

	/** This is where you add some context
	 *
	 * @param string $context context['this'] Being the Twig's {{ this }}.
	 */
	public function add_to_context( $context ) {

		$this->read_configuration_files();

		$context['menu']                    = new Timber\Menu( 'primary' );
		$context['footermenu']              = new Timber\Menu( 'footermenu' );
		$context['site']                    = $this;
		$context['site_name']               = ( get_bloginfo( 'name' ) ? get_bloginfo( 'name' ) : 'Gebruiker Centraal' );
		$context['site_linktext']           = _x( ", to the homepage", 'link op logo', 'gctheme' );
		$context['alt_logo']                = _x( "Logo", 'Alt-tekst op logo', 'gctheme' );
		$context['sprite']                  = get_stylesheet_directory_uri() . '/assets/images/sprites/gc/defs/svg/sprite.defs.svg';
		$context['sprite_od']               = get_stylesheet_directory_uri() . '/assets/images/sprites/optimaal-digitaal/defs/svg/sprite.defs.svg';
		$context['sprite_steps']            = get_stylesheet_directory_uri() . '/assets/images/sprites/stepchart/defs/svg/sprite.defs.svg';
		$context['footer_widget_left']      = Timber::get_widgets( 'footer_widget_left' );
		$context['footer_widget_right']     = Timber::get_widgets( 'footer_widget_right' );
		$context['site_logo']               = get_stylesheet_directory_uri() . $this->configuration['site_logo'];
		$context['skiplinks_id']            = ID_SKIPLINKS;
		$context['maincontent_id']          = 'maincontent';
		$context['maincontent_id_linktext'] = _x( 'Jump to main content', 'skiplinks', 'gctheme' );
		$context['mainnav_id']              = 'menu-primary';
		$context['mainnav_id_linktext']     = _x( 'Jump to main navigation', 'skiplinks', 'gctheme' );
		$context['searchlabel']             = _x( 'Search', 'searchform label', 'gctheme' );
		$context['searchplaceholder']       = _x( 'Search', 'searchform label', 'gctheme' );
		$context['searchbuttonlabel']       = _x( 'Go', 'searchform button label', 'gctheme' );
		$context['searchterm']              = isset( $_GET['s'] ) ? sanitize_text_field( $_GET['s'] ) : '';

		// Additional vars for archives
		if ( is_archive() ) {
			$context['archive_term']['tid']   = get_queried_object()->term_id;
			$context['archive_term']['descr'] = get_queried_object()->description;
			$context['pagetype']              = 'archive_' . get_queried_object()->taxonomy;
		}

		return $context;
	}

	public function theme_supports() {

		$this->read_configuration_files();

		// Add default posts and comments RSS feed links to head.
		add_theme_support( 'automatic-feed-links' );

		$theme_options = get_option( 'gc2020_theme_options' );
		$flavor        = DEFAULTFLAVOR; // default, tenzij er een smaakje is gekozen
		if ( isset( $theme_options['flavor_select'] ) ) {
			$flavor = $theme_options['flavor_select'];
		}

		// these are the only allowed colors for the editor
		// keys in the flavors_config.json should match the keys here
		$arr_acceptable_colors = [
			'white'                => [
				'name'  => __( 'Wit', 'gctheme' ),
				'slug'  => 'white',
				'color' => '#fff',
			],
			'black'                => [
				'name'  => __( 'Zwart', 'gctheme' ),
				'slug'  => 'black',
				'color' => '#000',
			],
			'gc-green'             => [
				'name'  => __( 'GC Groen', 'gctheme' ),
				'slug'  => 'gc-green',
				'color' => '#25b34b',
			],
			'gc-dark-blue'         => [
				'name'  => __( 'GC Dark Blue', 'gctheme' ),
				'slug'  => 'gc-dark-blue',
				'color' => '#004152',
			],
			'gc-pantybrown'        => [
				'name'  => __( 'GC Pantybrown', 'gctheme' ),
				'slug'  => 'gc-pantybrown',
				'color' => '#e8d8c7',
			],
			'gc-dark-purple'       => [
				'name'  => __( 'GC Dark Purple', 'gctheme' ),
				'slug'  => 'gc-dark-purple',
				'color' => '#4c2974',
			],
			'gc-blue'              => [
				'name'  => __( 'GC Blue', 'gctheme' ),
				'slug'  => 'gc-blue',
				'color' => '#0095da',
			],
			'gc-pink'              => [
				'name'  => __( 'GC Pink', 'gctheme' ),
				'slug'  => 'gc-pink',
				'color' => '#c42c76',
			],
			'gc-orange'            => [
				'name'  => __( 'GC Orange', 'gctheme' ),
				'slug'  => 'gc-orange',
				'color' => '#f99d1c',
			],
			'gc-cyan'              => [
				'name'  => __( 'GC Cyan', 'gctheme' ),
				'slug'  => 'gc-cyan',
				'color' => '#00b4ac',
			],
			'inc_orange'           => [
				'name'  => __( 'Inclusie Orange', 'gctheme' ),
				'slug'  => 'inc_orange',
				'color' => '#D94721',
			],
			'inc_a11y_orange'      => [
				'name'  => __( 'Inclusie Orange', 'gctheme' ),
				'slug'  => 'inc-accessible-orange',
				'color' => '#c73d19',
			],
			'nlds_purplish'        => [
				'name'  => __( 'NLDS Purplish', 'gctheme' ),
				'slug'  => 'nlds-purplish',
				'color' => '#74295f',
			],
			'gc-blue'              => [
				'name'  => __( 'GC Blue', 'gctheme' ),
				'slug'  => 'gc-blue',
				'color' => '#0095da',
			],
			'gc-accessible-blue'   => [
				'name'  => __( 'GC Blue Safe', 'gctheme' ),
				'slug'  => 'gc-accessible-blue',
				'color' => '#007BB0',
			],
			'gc-accessible-green'  => [
				'name'  => __( 'GC acessible green', 'gctheme' ),
				'slug'  => 'gc-accessible-green',
				'color' => '#148839',
			],
			'od-orange'            => [
				'name'  => __( 'od-orange', 'gctheme' ),
				'slug'  => 'gc-orange',
				'color' => '#BA4F0C',
			],
			'od-orange-darker'     => [
				'name'  => __( 'od-orange-darker', 'gctheme' ),
				'slug'  => 'gc-orange',
				'color' => '#983A00',
			],
			'gc-pantybrown-xlight' => [
				'name'  => __( 'GC Pantybrown Xtra Light', 'gctheme' ),
				'slug'  => 'gc-pantybrown-xlight',
				'color' => '#f9f6f3',
			],
		];


		/*
		 * Let WordPress manage the document title.
		 * By adding theme support, we declare that this theme does not use a
		 * hard-coded <title> tag in the document head, and expect WordPress to
		 * provide it for us.
		 */
		add_theme_support( 'title-tag' );

		/*
		 * Enable support for Post Thumbnails on posts and pages.
		 *
		 * @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
		 */
		add_theme_support( 'post-thumbnails' );

		/*
		 * Enable excerpts for pages.
		 *
		 */
		add_post_type_support( 'page', 'excerpt' );

		/*
		 * Switch default core markup for search form, comment form, and comments
		 * to output valid HTML5.
		 */
		add_theme_support( 'html5', [
			'comment-form',
			'comment-list',
			'gallery',
			'caption',
		] );

		/*
		 * Enable support for Post Formats.
		 *
		 * See: https://codex.wordpress.org/Post_Formats
		 */
		add_theme_support( 'post-formats', [
			'aside',
			'image',
			'video',
			'quote',
			'link',
			'gallery',
			'audio',
		] );

		add_theme_support( 'menus' );

		// Yoast Breadcrumbs
		add_theme_support( 'yoast-seo-breadcrumbs' );

		add_image_size( HALFWIDTH, 380, 9999, false );
		add_image_size( BLOG_SINGLE_MOBILE, 120, 9999, false );
		add_image_size( BLOG_SINGLE_TABLET, 250, 9999, false );
		add_image_size( BLOG_SINGLE_DESKTOP, 380, 9999, false );
		add_image_size( IMG_SIZE_HUGE, IMG_SIZE_HUGE_MIN_WIDTH, 9999, false );

		// add_image_size heeft de volgende parameters:
		// add_image_size( string $name, int $width, int $height, bool|array $crop = false )
		// Het volgende gaat uit van plaatjes die minstens 800x breed zijn en die we in dit formaat
		// willen bijsnijden, MET croppen.
		// Plaatjes die kleiner zijn dan $base_width worden dus NIET netjes op maat gesneden
		// TODO: moeten we een minimale breedte hebben voor featured images?
		// (plugin: https://wordpress.org/plugins/minimum-featured-image-size/)
		$base_width  = 800;
		$base_height = ( ( $base_width / 16 ) * 9 );
		$docrop      = true;
		add_image_size( IMAGESIZE_16x9, $base_width, $base_height, $docrop );

		// Grootte voor de hero-image. Dit is een apart image, via een ACF-veld.
		// idealiter is dit image 2200px breed minimaal en 350px hoog.
		$heroimage_width  = 2200;
		$heroimage_height = 350;
		$docrop           = true;
		add_image_size( IMAGESIZE_HERO_IMAGE, $heroimage_width, $heroimage_height, $docrop );

		add_image_size( 'thumb-cardv3', 99999, 600, false );    // max  600px hoog, niet croppen

		// Enable and load CSS for admin editor
		add_theme_support( 'editor-styles' );

		// Allow for responsive embedding
		add_theme_support( 'responsive-embeds' );

		// Disable Custom Colors
		add_theme_support( 'disable-custom-colors' );

		$colors_editor = [
			// these colors should always be available
			// any other should be defined in flavors_config.json
			'white'                => [
				'name'  => __( 'Wit', 'gctheme' ),
				'slug'  => 'white',
				'color' => '#fff',
			],
			'black'                => [
				'name'  => __( 'Zwart', 'gctheme' ),
				'slug'  => 'black',
				'color' => '#000',
			],
			'gc-pantybrown-xlight' => [
				'name'  => __( 'GC Pantybrown Xtra Light', 'gctheme' ),
				'slug'  => 'gc-pantybrown-xlight',
				'color' => '#f9f6f3',
			],
		];

		if ( $this->configuration['palette'] ) {
			// there are extra colors for the current flavor
			foreach ( $this->configuration['palette'] as $key => $value ) {
				if ( isset( $arr_acceptable_colors[ $key ] ) ) {
					// the color is allowed
					$colors_editor[ $key ] = [
						'name'  => $arr_acceptable_colors[ $key ]['name'],
						'color' => $arr_acceptable_colors[ $key ]['color'],
						'slug'  => $key,
					];
				}
			}
		}

		// Restrict Editor Color Palette
		add_theme_support( 'editor-color-palette', $colors_editor );

		// options for font size: off!
		add_theme_support( 'disable-custom-font-sizes' );

		// forces the dropdown for font sizes to only contain "normal"
		add_theme_support( 'editor-font-sizes', [
			array(
				'name' => esc_attr__( 'Regular', 'gctheme' ),
				'size' => 18,
				'slug' => 'regular'
			),
			array(
				'name' => esc_attr__( 'Larger', 'gctheme' ),
				'size' => 22,
				'slug' => 'larger',
			)
		] );

		/* Disable block editor for widgets */
		remove_theme_support( 'widgets-block-editor' );

	}

	/*
	 * add admin styles
	 */
	public function add_adminstyles() {

		$cachebuster = '?v=' . filemtime( dirname( __FILE__ ) . '/assets/fonts/editor-fonts.css' );

		add_editor_style( get_stylesheet_directory_uri() . '/assets/fonts/editor-fonts.css' . $cachebuster );
		add_editor_style( get_stylesheet_directory_uri() . '/assets/css/editor-styles.css' . $cachebuster );
		/*
		*/
	}

	/** This Would return 'foo bar!'.
	 *
	 * @param string $text being 'foo', then returned 'foo bar!'.
	 */
	public function myfoo( $text ) {
		$text .= ' bar!';

		return $text;
	}

	/** This is where you can add your own functions to twig.
	 *
	 * @param string $twig get extension.
	 */
	public function add_to_twig( $twig ) {


		$twig->addExtension( new Twig\Extension\StringLoaderExtension() );
		$twig->addFilter( new Twig\TwigFilter( 'myfoo', [ $this, 'myfoo' ] ) );

		return $twig;
	}

	public function gc_wbvb_add_css() {

		if ( is_array( $this->configuration['jsfiles'] ) ) {

			foreach ( $this->configuration['jsfiles'] as $key => $value ) {

				// alleen de laatste versie is goed genoeg, dus
				// versienummer is gelijk aan laatst-gewijzigd datum
				$file         = get_stylesheet_directory() . $value['file'];
				$versie       = filemtime( $file );
				$dependencies = $value['dependencies'];

				if ( ! empty( $dependencies ) ) {
					// Convert comma-separated string
					// to proper Array with registered script handles
					// And deal with spaces, quotes, etc.
					// The following should all work:
					//  - "dependencies": "wp-i18n",
					//  - "dependencies": "'wp-i18n'",
					//  - "dependencies": "foo, bar,  'baz uh', \"wp-i18n\", 123",
					$dependencies = array_map(
						function ( $handle ) {
							$handle = sanitize_title( $handle );
							$handle = esc_attr( $handle );
							$handle = trim( $handle );

							return $handle;
						},
						explode( ',', $dependencies )
					);
				}
				wp_enqueue_script( $value['handle'], get_stylesheet_directory_uri() . $value['file'], $dependencies, $versie, $value['infooter'] );

			}
		}

		$skiplinkshandle = ID_SKIPLINKS;

		if ( is_array( $this->configuration['cssfiles'] ) ) {

			foreach ( $this->configuration['cssfiles'] as $key => $value ) {

				// alleen de laatste versie is goed genoeg, dus
				// versienummer is gelijk aan laatst-gewijzigd datum
				$file         = get_stylesheet_directory() . $value['file'];
				$versie       = filemtime( $file );
				$dependencies = $value['dependencies'];

				wp_enqueue_style( $value['handle'], get_stylesheet_directory_uri() . $value['file'], $dependencies, $versie, 'all' );
				$skiplinkshandle = $value['handle'];

			}

			$custom_css = '
				ul#' . ID_SKIPLINKS . ', ul#' . ID_SKIPLINKS . ' li {
					list-style-type: none;
					list-style-image: none;
					padding: 0;
					margin: 0;
				}
				ul#' . ID_SKIPLINKS . ' li {
					background: none;
				}
				#' . ID_SKIPLINKS . ' li a {
					position: absolute;
					top: -1000px;
					left: 50px;
				}
				#' . ID_SKIPLINKS . ' li a:focus {
					left: 6px;
					top: 7px;
					height: auto;
					width: auto;
					display: block;
					font-size: 14px;
					font-weight: 700;
					padding: 15px 23px 14px;
					background: #f1f1f1;
					color: #21759b;
					z-index: 100000;
					line-height: normal;
					text-decoration: none;
					-webkit-box-shadow: 0 0 2px 2px rgba(0,0,0,.6);
					box-shadow: 0 0 2px 2px rgba(0,0,0,.6)
				}

				#' . ID_MAINNAV . ':focus {
					position: relative;
					z-index: 100000;
				}

				#' . ID_MAINNAV . ' a:focus {
					position: relative;
					z-index: 100000;
					color: #fff;
				}

				#' . ID_ZOEKEN . ':focus label {
					position: relative;
					left: 0;
					top: 0;
				}';

			/*
			 *
			if ( $this->configuration['site_logo'] ) {
				$custom_css .= "
				 .gc-site-footer-widget {
					background-image: url('" . get_stylesheet_directory_uri() . $this->configuration['site_logo'] . "');
				}";
			}
			 */


			wp_add_inline_style( $skiplinkshandle, $custom_css );

		}
	}

	/**
	 * Register our sidebars and widgetized areas.
	 *
	 */
	public function setup_widgets_init() {

		register_sidebar( [
			'name'          => _x( 'Footer widget left', 'Widget area', 'gctheme' ),
			'id'            => 'footer_widget_left',
			'before_widget' => '<section class="widget %s">',
			'after_widget'  => '</section>',
			'before_title'  => '<h3 class="widget-title widgettitle">',
			'after_title'   => '</h3>',
		] );

		register_sidebar( [
			'name'          => _x( 'Footer widget right', 'Widget area', 'gctheme' ),
			'id'            => 'footer_widget_right',
			'before_widget' => '<section class="widget %s">',
			'after_widget'  => '</section>',
			'before_title'  => '<h3 class="widget-title widgettitle">',
			'after_title'   => '</h3>',
		] );

	}

	/**
	 * Only allow some page templates based on the chosen flavor
	 *
	 * @param array $page_templates List of currently active page templates.
	 *
	 * @return array Modified list of page templates.
	 */
	public function activate_deactivate_page_templates( $page_templates ) {

		$allowed_templates = [
			"template-landingspagina.php"   => "Landingspagina",
			"template-overzichtspagina.php" => "Overzichtspagina",
			"template-sitemap.php"          => "Sitemap",
			"template-events-overview.php"  => "Events overzicht",
			"page-initiatieven.php"         => "Initiatieven-pagina",
		];

		if ( defined( 'ICTUWP_VIMEO_EMBED_TEMPLATE' ) ) {
			// dit template is actief als de webinar embed plugin actief is
			// zie https://redactie.gebruikercentraal.nl/artikel/webinars-embedden-via-een-pagina/
			$allowed_templates[ ICTUWP_VIMEO_EMBED_TEMPLATE ] = "Webinar embed";
		}

		// check the flavor
		$theme_options = get_option( 'gc2020_theme_options' );
		if ( isset( $theme_options['flavor_select'] ) ) {
			// flavor is available
			$flavor = $theme_options['flavor_select'];

			switch ( $flavor ) {
				case 'OD':
					// for Optimaal Digitaal, add tip templates
					$allowed_templates["template-overzicht-tipgevers.php"] = "[OD] Overzicht alle tipgevers";
					$allowed_templates["template-alle-tips.php"]           = "[OD] Overzicht alle tips";
					$allowed_templates["template-od-home.php"]             = "[OD] Template Home";
					$allowed_templates["template-od-handleiding.php"]      = "[OD] Template Handleiding";
					break;
				case 'KB':
					$allowed_templates["template-beeldbieb.php"] = "Beeldbieb";
					break;

				default:
					break;
			}

		}

		return $allowed_templates;
	}

	public function register_spotlight_cpt() {

		$labels = [
			"name"               => __( "Spotlight-blokken", 'gctheme' ),
			"singular_name"      => __( "Spotlight-blok", 'gctheme' ),
			"menu_name"          => __( "Spotlight", 'gctheme' ),
			"menu_name"          => __( "Spotlight", 'gctheme' ),
			"all_items"          => __( "Alle spotlight-blokken", 'gctheme' ),
			"add_new"            => __( "Toevoegen", 'gctheme' ),
			"add_new_item"       => __( "Spotlight-blok toevoegen", 'gctheme' ),
			"edit"               => __( "Spotlight-blok bewerken", 'gctheme' ),
			"edit_item"          => __( "Bewerk spotlight-blok", 'gctheme' ),
			"new_item"           => __( "Nieuwe spotlight-blok", 'gctheme' ),
			"view"               => __( "Bekijk", 'gctheme' ),
			"view_item"          => __( "Bekijk spotlight-blok", 'gctheme' ),
			"search_items"       => __( "Spotlight-blokken zoeken", 'gctheme' ),
			"not_found"          => __( "Geen spotlight-blokken gevonden", 'gctheme' ),
			"not_found_in_trash" => __( "Geen spotlight-blokken in de prullenbak", 'gctheme' ),
		];

		$args = [
			"labels"              => $labels,
			"description"         => __( "Hier voer je spotlight-blokken in.", 'gctheme' ),
			"public"              => false,
			"hierarchical"        => false,
			"exclude_from_search" => true,
			"publicly_queryable"  => false,
			"show_ui"             => true,
			"show_in_menu"        => true,
			"show_in_rest"        => true,
			"capability_type"     => __( "post", 'gctheme' ),
			"supports"            => [
				"title",
				"excerpt",
				"revisions",
				"thumbnail",
			],
			"has_archive"         => false,
			"can_export"          => true,
			"delete_with_user"    => false,
			"map_meta_cap"        => true,
			"query_var"           => true,
		];
		register_post_type( GC_SPOTLIGHT_CPT, $args );


	}


}

new GebruikerCentraalTheme();


function insert_breadcrumb() {

	// return Yoast Breadcrumb
	if ( function_exists( 'yoast_breadcrumb' ) ) {
		$html_start = '<div class="breadcrumb"><nav aria-label="Breadcrumb" class="breadcrumb__list">';
		$html_end   = '</nav></div>';
		$return     = yoast_breadcrumb( $html_start, $html_end, false );
		if ( $return !== $html_start . $html_end ) {
			return $return;
		} else {
			return '';
		}
	}
}


/*
 * filter body class
 */

add_filter( 'body_class', 'my_body_classes' );

function my_body_classes( $classes ) {

	global $post;

	$classes[] = '';

	if ( is_page() ) {

		$template = basename( get_page_template() );
		if ( ( 'template-alle-tips.php' === $template ) || ( 'template-overzicht-tipgevers.php' === $template ) ) {
			$classes[] = 'page--type-overview page--overview-archive';
		}
		if ( 'template-landingspagina.php' === $template ) {
			$classes[] = 'page--type-landing entry--type-landing';
		}

		if ( get_field( 'gerelateerde_content_toevoegen' ) ) {
			$classes[] = 'l-with-related';
		}

		if ( get_field( 'downloads_tonen' ) ) {
			$classes[] = 'l-with-downloads';
		}

	} elseif ( is_singular( GC_TIP_CPT ) ) {

		$classes[] = 'page page--type-tipkaart';
		$taxonomie = get_the_terms( $post, GC_TIPTHEMA );

		if ( $taxonomie && ! is_wp_error( $taxonomie ) ) {
			$counter = 0;
			// tip slug
			foreach ( $taxonomie as $term ) {

				$themakleur = get_field( 'kleur_en_icoon_tipthema', GC_TIPTHEMA . '_' . $term->term_id );

				if ( $themakleur ) {
					$classes[] = 'page-tipkaart--' . $themakleur;
				}
			}
		}
	} elseif ( is_archive() ) {
		//print_r(get_queried_object()->taxonomy);

		switch ( get_queried_object()->taxonomy ) {
			case 'tipthema':
				//$classes[] = 'page--overview-header-lg';
				break;

		}
	}

	return $classes;

}

/*
 * Generate archive titles
 */

add_filter( 'get_the_archive_title', function ( $title ) {

	if ( is_category() ) {
		$title = single_cat_title( '', false );
	} elseif ( is_tag() ) {
		$title = single_tag_title( '', false );
	} elseif ( is_author() ) {
		$title = '<span class="vcard">' . get_the_author() . '</span>';
	} elseif ( is_tax() ) { //for custom post types
		$title = single_term_title( '', false );
	} elseif ( is_post_type_archive() ) {
		$title = post_type_archive_title( '', false );
	}

	return $title;
} );

/**
 * Add our Customizer content
 */
function gc2020_customize_register( $wp_customize ) {

	$wp_customize->add_section( 'gc2020_theme', [
		'title'       => _x( 'Gebruiker Centraal Instellingen', 'customizer', 'gctheme' ),
		'description' => _x( 'Selecteer hier het kleurenschema voor deze site. Je wijzigt hiermee de styling, logo en sommige functionaliteit van de site.', 'customizer', 'gctheme' ),
		'priority'    => 60,
	] );
	//  =============================
	//  = Select Box                =
	//  =============================
	$wp_customize->add_setting( 'gc2020_theme_options[flavor_select]', [
		'default'    => DEFAULTFLAVOR,
		'capability' => 'edit_theme_options',
		'type'       => 'option',
	] );

	$flavors = [];

	// read configuration json file
	$configfile   = file_get_contents( trailingslashit( get_stylesheet_directory() ) . FLAVORSCONFIG );
	$flavorsource = json_decode( $configfile, true );
	foreach ( $flavorsource as $key => $value ) {
		$flavors[ strtoupper( $key ) ] = $value['name'];
	}

	$wp_customize->add_control( 'example_select_box', [
		'settings' => 'gc2020_theme_options[flavor_select]',
		'label'    => _x( 'Kies het kleurenschema', 'customizer', 'gctheme' ),
		'section'  => 'gc2020_theme',
		'type'     => 'select',
		'choices'  => $flavors,
	] );


}

add_action( 'customize_register', 'gc2020_customize_register' );


/**
 *  Dequeue unwanted CSS from plugins
 */

add_action( 'wp_enqueue_scripts', 'gc_ho_dequeue_css', 999 );

function gc_ho_dequeue_css() {

	if ( ! is_admin() ) {

		// geen styling van events manager
		wp_deregister_style( 'events-manager' );
		wp_dequeue_style( 'events-manager' );

		// of events manager pro
		wp_deregister_style( 'events-manager-pro' );
		wp_dequeue_style( 'events-manager' );

		// geen css van newsletterplugin
		wp_deregister_style( 'newsletter' );
		wp_dequeue_style( 'newsletter-css' );

		// geen css van newsletterplugin
		wp_deregister_style( 'contact-form-7' );
		wp_dequeue_style( 'contact-form-7-css' );

	}

}


//========================================================================================================

function gc_ho_remove_unnecessary_scripts() {

	// coblocks zorgt voor foutmeldingen in IE11 (je verwacht het niet....)
	// en we hebben het volgens mij niet echt nodig.
	wp_dequeue_script( 'coblocks-animation' );

}

add_action( 'wp_footer', 'gc_ho_remove_unnecessary_scripts' );

//========================================================================================================
// ervoor zorgen dat specifieke Optimaal Digitaal-termen op de juiste manier afgebroken kunnen worden

if ( ! function_exists( 'od_wbvb_custom_post_title' ) ) {

	function od_wbvb_custom_post_title( $title ) {

		$pattern     = '/erantwoordelijkh/i'; // verantwoordelijkheid
		$replacement = 'erant&shy;woorde&shy;lijkh';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/emeenscha/i'; // gemeenschappelijk,  gemeenschap
		$replacement = 'emeen&shy;scha';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/ersoonsge/i'; // persoonsgegevens
		$replacement = 'ersoons&shy;ge';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/informatiev/i'; // informatieveiligheid
		$replacement = 'informatie&shy;v';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/ortermijnd/i'; // kortetermijndenken
		$replacement = 'ortermijn&shy;d';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/ebruiksvrien/i';
		$replacement = 'ebruiks&shy;vrien';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/gebruikssituatie/i';
		$replacement = 'gebruiks&shy;situatie';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/laaggeletterde/i';
		$replacement = 'laag&shy;geletterde';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/belangenbehartig/i';
		$replacement = 'belangen&shy;behartig';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/ijvingsform/i';
		$replacement = 'ijvings&shy;form';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/evensgebeurtenis/i';
		$replacement = 'evens&shy;gebeurtenis';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/gemeenschapp/i';
		$replacement = 'gemeen&shy;schap&shy;p';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/kortetermijndoel/i';
		$replacement = 'kortetermijn&shy;doel';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/toptakenprincipe/i';
		$replacement = 'toptaken&shy;principe';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/verwachtingsmanagement/i';
		$replacement = 'verwachtings&shy;management';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/dienstverlening/i';
		$replacement = 'dienst&shy;verlening';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/uitgangspunt/i';
		$replacement = 'uitgangs&shy;punt';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/medewerkerreis/i';
		$replacement = 'medewerker&shy;reis';
		$title       = preg_replace( $pattern, $replacement, $title );

		$pattern     = '/elfredz/i';
		$replacement = 'elf&shy;redz';
		$title       = preg_replace( $pattern, $replacement, $title );

		// ontwikkeling
		$pattern     = '/ntwikke/i';
		$replacement = 'ntwik&shy;ke';
		$title       = preg_replace( $pattern, $replacement, $title );

		// aantrekkelijk
		$pattern     = '/antrekkelijk/i';
		$replacement = 'antrek&shy;kelijk';
		$title       = preg_replace( $pattern, $replacement, $title );

		// afdelingsoverstijgend
		$pattern     = '/fdelingsoverstijgend/i';
		$replacement = 'fdelings&shy;over&shy;stij&shy;gend';
		$title       = preg_replace( $pattern, $replacement, $title );

		// communiceer
		$pattern     = '/communiceer/i';
		$replacement = 'communi&shy;ceer';
		$title       = preg_replace( $pattern, $replacement, $title );

		// wachtwoord
		$pattern     = '/wachtwoord/i';
		$replacement = 'wacht&shy;woord';
		$title       = preg_replace( $pattern, $replacement, $title );

		return $title;

	}

}

//========================================================================================================

function gc_wbvb_get_human_filesize( $bytes, $decimals = 2 ) {
	$sz     = 'BKMGTP';
	$factor = floor( ( strlen( $bytes ) - 1 ) / 3 );

	return sprintf( "%.{$decimals}f", $bytes / pow( 1024, $factor ) ) . @$sz[ $factor ] . 'B';
}

//========================================================================================================

function get_themakleuren() {

	$themakleuren = [];

	// alle tipthema's langs om de kleuren op te halen
	$args  = [
		'taxonomy'   => GC_TIPTHEMA,
		'hide_empty' => true,
		'orderby'    => 'name',
		'order'      => 'ASC',
	];
	$terms = get_terms( $args );

	if ( ! empty( $terms ) && ! is_wp_error( $terms ) ) {
		$count = count( $terms );

		foreach ( $terms as $term ) {

			$themakleur = get_field( 'kleur_en_icoon_tipthema', GC_TIPTHEMA . '_' . $term->term_id );

			if ( $themakleur ) {

				$themakleuren[ $term->term_id ] = $themakleur;

			} else {
				// kleur ontbreekt
			}
		}
	}

	return $themakleuren;

}

// Hernoem menu naam Kennisbank
function rename_minervakb() {

	global $menu;

	foreach ( $menu as $key => $item ) {
		if ( $item[0] === 'minervakb' ) {
			$menu[ $key ][0] = __( 'GC Kennisbank', 'gctheme' );     //change name

		}
	}

	return false;
}

add_action( 'admin_menu', 'rename_minervakb', 999 );

//========================================================================================================

function append_block_wrappers( $block_content, $block ) {

	$pagetemplate = basename( get_page_template() );

	$tag = 'div';

	if ( 'template-od-handleiding.php' === $pagetemplate ) {
		$tag = 'li';
	}

	if ( $block['blockName'] == 'acf/gc-handleiding' ) {
		global $handleidingcounter;
		$handleidingcounter ++;
		$content = '<li class="manual-item manual-item--item-' . $handleidingcounter . '">';
		$content .= $block_content;
		$content .= '</li>';

		return $content;
	} else {
		$className = '';
		switch ( $block['blockName'] ) {
			case 'acf/gc-ctalink':
				$className = 'cta';
				break;
			case 'core/heading':
				$className = 'heading';
				break;
			case 'core/list':
				$className = 'list';
				break;
			case 'core/media-text':
			case 'core/paragraph':
			case 'core/quote':
			case 'paragraph':
				$className = 'paragraph';
				break;
		}

		if ( ! empty( $className ) ) {
			$content = '<' . $tag . ' class="section section--' . $className . '">';
			$content .= $block_content;
			$content .= '</' . $tag . '>';

			return $content;
		}
	}

	return $block_content;
}

add_filter( 'render_block', 'append_block_wrappers', 10, 2 );

//========================================================================================================
/*
 * only allow these Gutenberg blocks to be used
 */

function gc_restrict_gutenberg_blocks( $allowed_blocks ) {

	/*
		these are most of the core blocks. We will allow only some of them
		---------------------------------------------
		Standard block: core-embed/facebook
		Standard block: core-embed/instagram
		Standard block: core-embed/twitter
		Standard block: core-embed/wordpress
		Standard block: core-embed/vimeo
		Standard block: core-embed/youtube
		Standard block: core/audio
		Standard block: core/button
		Standard block: core/categories
		Standard block: core/code
		Standard block: core/columns
		Standard block: core/cover
		Standard block: core/file
		Standard block: core/gallery
		Standard block: core/heading
		Standard block: core/html
		Standard block: core/image
		Standard block: core/latest-posts
		Standard block: core/media-text
		Standard block: core/list
		Standard block: core/nextpage
		Standard block: core/paragraph
		Standard block: core/preformatted
		Standard block: core/pullquote
		Standard block: core/quote
		Standard block: core/separator
		Standard block: core/spacer
		Standard block: core/subhead
		Standard block: core/table
		Standard block: core/text-columns
		Standard block: core/verse
		Standard block: core/video


		these are our custom Gutenberg blocks
		see folder: /gutenberg-blocks
		---------------------------------------------
		GC specific block: acf/gc-links
		GC specific block: acf/gc-related
		GC specific block: acf/gc-downloads
		GC specific block: acf/gc-ctalink
		GC specific block: acf/gc-textimage


	*/
	return [
		'core/image',
		'core/heading',
		'core/table',
		'core/audio',
		'core/gallery',
		'core/list',
		'core/media-text',
		'core/paragraph',
		'core/pullquote',
		'core/subhead',
		'core-embed/youtube',
		'core-embed/vimeo',

		'acf/gc-ctalink',
		'acf/gc-downloads',
		'acf/gc-handleiding',
		'acf/gc-links',
		'acf/gc-related',
		'acf/gc-rijksvideo',
		'acf/gc-textimage',


	];

}

//add_filter( 'allowed_block_types', 'gc_restrict_gutenberg_blocks' );

//========================================================================================================

add_filter( 'acf/fields/relationship/result', 'my_acf_fields_relationship_result', 10, 4 );

function my_acf_fields_relationship_result( $text, $post, $field, $post_id ) {

	if ( GC_TIP_CPT === get_post_type( $post ) ) {
		$tipnummer = get_field( 'tip-nummer', $post->ID );
		$text      = sprintf( _x( 'Tip %s', 'Label tip-nummer', 'gctheme' ), $tipnummer ) . ' - ' . $text;
	}

	return $text;
}

//========================================================================================================

function get_hero_image() {
	$return = [];

	if ( get_field( 'hero_image' ) ) {
		$data           = get_field( 'hero_image' );
		$return['src']  = $data['url'];
		$return['alt']  = $data['alt'];
		$return['mime'] = get_post_mime_type( $data['ID'] );
	}

	return $return;

}


//========================================================================================================

function translate_mime_type( $fullmimetype ) {

	$return = '';

	switch ( strtolower( $fullmimetype ) ) {

		case "png":
			$return = _x( 'PNG', 'Mime-types', 'gctheme' );
			break;

		case "jpeg":
			$return = _x( 'JPG', 'Mime-types', 'gctheme' );
			break;

		case "jpg":
			$return = _x( 'JPG', 'Mime-types', 'gctheme' );
			break;

		case "gif":
			$return = _x( 'GIF', 'Mime-types', 'gctheme' );
			break;

		case "mp3":
			$return = _x( 'MP3', 'Mime-types', 'gctheme' );
			break;

		case "mp4":
			$return = _x( 'MOVIE', 'Mime-types', 'gctheme' );
			break;

		case "mpeg":
			$return = _x( 'MP3', 'Mime-types', 'gctheme' );
			break;

		case "pdf":
			$return = _x( 'PDF', 'Mime-types', 'gctheme' );
			break;

		case "vnd.openxmlformats-officedocument.wordprocessingml.document":
			$return = _x( 'Word', 'Mime-types', 'gctheme' );
			break;

		case "msword":
			$return = _x( 'Word', 'Mime-types', 'gctheme' );
			break;

		case "vnd.ms - powerpoint":
			$return = _x( 'Powerpoint', 'Mime-types', 'gctheme' );
			break;

		case "vnd.openxmlformats-officedocument.presentationml.presentation":
			$return = _x( 'Powerpoint', 'Mime-types', 'gctheme' );
			break;

		case "vnd.ms - excel":
			$return = _x( 'Excel', 'Mime-types', 'gctheme' );
			break;

		case "vnd.openxmlformats-officedocument.spreadsheetml . sheet":
			$return = _x( 'Excel', 'Mime-types', 'gctheme' );
			break;

		case "plain":
			$return = _x( 'TXT', 'Mime-types', 'gctheme' );
			break;

		default:
			$return = 'document: (' . $fullmimetype . ')';
			break;
	}

	return $return;

}

//========================================================================================================

function translate_posttype( $posttype ) {
	$return = '';
	if ( $posttype ) {
		$obj    = get_post_type_object( $posttype );
		$return = $obj->labels->singular_name;
	}

	return $return;
}

//========================================================================================================

/*
 * This function uses a post and distills all relevant fields from it to be used in a twig card
 * @param WP_Post $postitem the post item of any type
 *
 * @return array for use with a card
 *
 */
function prepare_card_content( $postitem ) {


	$item               = [];
	$postid             = $postitem->ID;
	$item['post_title'] = od_wbvb_custom_post_title( get_the_title( $postid ) );
	$item['title']      = $item['post_title']; // dit is dubbelop en overbodig en meer dan nodig, maar in de twig-files wordt afwisselend 'title' en 'post_title' gebruikt. Dat laatste is de meest correcte vorm
	$item['descr']      = get_the_excerpt( $postid );
	$item['post_type']  = get_post_type( $postid );
	$item['type']       = $item['post_type']; // dit is dubbelop en overbodig en meer dan nodig, maar in de twig-files wordt afwisselend 'type' en 'post_type' gebruikt. Dat laatste is de meest correcte vorm
	$item['post_date']  = get_the_date( 'Y-m-d', $postid );
	$item['url']        = get_the_permalink( $postid );
	$image              = get_the_post_thumbnail( $postid, 'large', [] );
	$item['img']        = $image;
	$item['img_alt']    = $image;
	$themakleuren       = [];

	if ( 'tips' == $item['post_type'] ) {

		// zorgen dat de titel netjes afgebroken wordt binnen de smalle ruimte van het kaartje
		$item['title'] = od_wbvb_custom_post_title( get_the_title( $postid ) );

		// het is een tip
		// eerst checken of we al alle themakleuren hebben
		if ( ! $themakleuren ) {
			$themakleuren = get_themakleuren();
		}

		$item['tip_nummer'] = sprintf( _x( 'Tip %s', 'Label tip-nummer', 'gctheme' ), get_post_meta( $postid, 'tip-nummer', true ) );
		$item['toptip']     = false;
		$is_toptip          = get_post_meta( $postid, 'is_toptip', true );

		if ( $is_toptip ) {
			$item['toptip']      = true;
			$item['toptiptekst'] = _x( 'Toptip', 'Toptiptekst bij tip', 'gctheme' );
		}

		// Set term name
		$taxonomie = get_the_terms( $postid, GC_TIPTHEMA );

		$item['category'] = ! empty( $themakleuren[ $taxonomie[0]->term_id ] ) ? $themakleuren[ $taxonomie[0]->term_id ] : '';

	} elseif ( 'post' == $item['post_type'] ) {

		if ( $postitem->post_author ) {
			$item['meta'][] = [
				'classname' => 'auteur',
				'title'     => _x( 'Author', 'Meta: value voor auteur', 'gctheme' ),
				'descr'     => get_the_author_meta( 'display_name', $postitem->post_author ),
			];
		}

		$item['meta'][] = [
			'title' => 'date',
			'descr' => get_the_time( get_option( 'date_format' ), $postid ),
		];


	} elseif ( 'event' == $item['post_type'] ) {

		$event_start_date     = get_post_meta( $postid, '_event_start_date', true );
		$event_start_time     = get_post_meta( $postid, '_event_start_time', true );
		$event_end_date       = get_post_meta( $postid, '_event_end_date', true );
		$event_end_time       = get_post_meta( $postid, '_event_end_time', true );
		$event_end_datetime   = strtotime( $event_end_date . ' ' . $event_end_time );
		$event_start_datetime = strtotime( $event_start_date . ' ' . $event_start_time );

		// als start-datum en eindatum op dezelfde dag
		if ( $event_start_date === $event_end_date ) {

			$item['meta'][] = [
				'title'     => _x( 'Event date', 'Meta: value voor evenementdatum', 'gctheme' ),
				'classname' => 'datum',
				'descr'     => date_i18n( get_option( 'date_format' ), $event_start_datetime ),
			];


			// dan start- en eindtijd tonen, als die nuttig zijn
			if ( date_i18n( get_option( 'time_format' ), $event_start_datetime ) !== date_i18n( get_option( 'time_format' ), $event_end_datetime ) ) {
				$eventtimes     = gc_format_times( $event_start_datetime, $event_end_datetime );
				$item['meta'][] = [
					'classname' => 'times',
					'title'     => _x( 'Times', 'Meta voor event: value voor start- en eindtijd', 'gctheme' ),
					'descr'     => $eventtimes,
				];
			}
		} else {
			$eventdates     = sprintf( _x( '%s - %s', 'Meta voor event: label voor start- en eindtijd', 'gctheme' ), date_i18n( get_option( 'date_format' ), $event_start_datetime ), date_i18n( get_option( 'date_format' ), $event_end_datetime ) );
			$item['meta'][] = [
				'title'     => _x( 'Event date', 'Meta: value voor evenementdatum', 'gctheme' ),
				'classname' => 'datum',
				'descr'     => $eventdates,
			];

		}

		if ( 'EM_Event' === get_class( $postitem ) ) {
			if ( ( $postitem->get_bookings()
			                ->get_available_spaces() <= 0 ) && ( $postitem->get_bookings()->tickets->tickets ) ) {
				// heeft mogelijkheid tot reserveren, maar alle plekken zijn bezet
				$item['full']   = _x( 'Fully booked', 'Meta voor event: value voor geen plek meer beschikbaar', 'gctheme' );
				$item['meta'][] = [
					'classname' => 'aanmeldingen',
					'title'     => _x( 'Availability', 'Meta voor event: label voor geen plek meer beschikbaar', 'gctheme' ),
					'descr'     => _x( 'Fully booked', 'Meta voor event: value voor geen plek meer beschikbaar', 'gctheme' ),
				];
			}

			if ( $postitem->location_id ) {
				// dit ding heeft een locatie
				$lcatie = $postitem->output( '#_LOCATIONNAME' );

				$item['meta'][] = [
					'classname' => 'location',
					'title'     => _x( 'Location', 'Meta voor event: label voor locatie', 'gctheme' ),
					'descr'     => $lcatie,
				];

			}
		}

		if ( $event_start_datetime === $event_end_datetime ) {
			$item['start_date'] = $event_start_datetime;
		} elseif ( $event_start_datetime && $event_end_datetime ) {
			$item['start_date'] = $event_start_datetime;
			$item['end_date']   = $event_end_datetime;
		}
	}


	return $item;
}

//========================================================================================================

add_filter( 'acf/fields/relationship/query/name=overzichtspagina_content_block_items', 'acf_relationshipfield_only_use_published_content', 10, 3 );
add_filter( 'acf/fields/relationship/query/name=content_block_items', 'acf_relationshipfield_only_use_published_content', 10, 3 );


function acf_relationshipfield_only_use_published_content( $options, $field, $post_id ) {
	$options['post_status'] = [ 'publish' ];

	return $options;
}

//========================================================================================================

/**
 * Register a sidebar (widget space) for the 404 page
 *
 */
function not_found_page_widgets_init() {

	register_sidebar( [
		'name'          => _x( 'Widgetruimte op 404 pagina', '404 widget space', 'gctheme' ),
		'id'            => 'widgets_404',
		'before_widget' => '<section id="widgets_404_ % s" class="sidebar % s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h2>',
		'after_title'   => '</h2>',
	] );

}

add_action( 'widgets_init', 'not_found_page_widgets_init' );

//========================================================================================================

add_filter( 'manage_upload_columns', 'size_column_register' );

function size_column_register( $columns ) {

	$columns['dimensions'] = 'Dimensions';

	return $columns;
}

//========================================================================================================

add_action( 'manage_media_custom_column', 'size_column_display', 10, 2 );

function size_column_display( $column_name, $post_id ) {

	if ( 'dimensions' != $column_name || ! wp_attachment_is_image( $post_id ) ) {
		return;
	}

	list( $url, $width, $height ) = wp_get_attachment_image_src( $post_id, 'full' );

	echo esc_html( "{$width}&times;{$height}" );
}

//========================================================================================================

function gc_wbvb_auteursfoto_waarschuwing( $value, $post_id, $field ) {

	$authorfoto_url = wp_get_attachment_image_src( $value, 'thumbnail' );

	$warning = '';

	if ( ! $authorfoto_url ) {
		// mediabestand bestaat niet op deze omgeving
		$user_id        = str_replace( "user_", "", $post_id );
		$authorfoto_url = get_user_meta( $user_id, 'auteursfoto_url', true );
		$warning        = '<div style="border: 1px solid silver; background: white; padding: 1rem; overflow:hidden;">';
		if ( $authorfoto_url ) {
			$warning .= '<a href="' . $authorfoto_url . '"><img alt="" src="' . $authorfoto_url . '" width="150" style="float: left; margin-right: 1rem;"></a>';
			$warning .= '<h1 style="margin: 0; padding: 0;">Let op!</h1>';
			$warning .= '<p>De auteursfoto die je hiernaast ziet is geupload via een andere subsite op deze WordPress-omgeving.<br>';
			$warning .= 'Daarom zie je hieronder als waarde voor de auteurs-foto: ';
			$warning .= '<strong><em>Geen afbeelding geselecteerd</em></strong><br>';
		} else {
			// nog geen plaatje beschikbaar
			$warning .= '<h1 style="margin: 0; padding: 0;">Let op!</h1>';
		}
		$warning .= 'De foto die je hier uploadt, wordt hierna getoond op elke andere subsite die het Gebruiker Centraal-theme gebruikt.<br>';
		$warning .= 'Er is maar 1 auteursfoto mogelijk voor een auteur. ';
		$warning .= 'Een gebruiker / auteur MOET een auteursfoto hebben. Als je geen auteursfoto meer wil, upload dan een neutraal plaatje.</p>';
		$warning .= '</div>';

	}

	if ( is_admin() ) {
		echo $warning;
	}

	return $value;
}

// Apply to auteursfoto field
add_filter( 'acf/load_value/name=auteursfoto', 'gc_wbvb_auteursfoto_waarschuwing', 10, 3 );


//========================================================================================================

// bij het wijzigen van de avatar van een slaan we de URL voor de foto op als een
// globaal beschikbare waarde voor de gebruiker.
// zo is de avatar die je invoerde op site [x] ook beschikbaar op site [y]
// de user variable 'auteursfoto_url' kan ook door andere themes (zoals ictuwp-theme-gc2020)
// worden gebruikt.

add_action( 'acf/save_post', 'gc_wbvb_update_auteursfoto' );

function gc_wbvb_update_auteursfoto( $post_id ) {

	$user_id     = str_replace( "user_", "", $post_id );
	$auteursfoto = get_user_meta( $user_id, 'auteursfoto', true );
	$size        = 'thumb-cardv3';

	if ( $auteursfoto ) {
		$image = wp_get_attachment_image_src( $auteursfoto, $size );
		if ( $image[0] ) {
			update_user_meta( $user_id, 'auteursfoto_url', $image[0] );
		}
	}

}

//========================================================================================================

function gc_format_times( $date_start = '', $date_end = '' ) {
	$return = '';

	if ( $date_start && $date_end ) {
		$time_start        = date_i18n( get_option( 'time_format' ), $date_start );
		$time_start_prefix = sprintf( _x( '<span class="visuallyhidden">Starts at</span> %s', 'Meta voor event: label voor starttijd', 'gctheme' ), $time_start );
		$time_end          = date_i18n( get_option( 'time_format' ), $date_end );
		$time_end_prefix   = sprintf( _x( '<span class="visuallyhidden">ends at </span> %s', 'Meta voor event: label voor eindtijd', 'gctheme' ), $time_end );
		$return            = sprintf( _x( '%s %s %s', 'Meta voor event: label voor start-, eindtijd en tussenvoegsel', 'gctheme' ), $time_start_prefix, '<span aria-hidden="true">-</span>', $time_end_prefix );
	}

	return $return;
}

//========================================================================================================