<?php
/**
 * pally functions and definitions
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package pally
 */

if ( ! defined( 'pally_VERSION' ) ) {
	// Replace the version number of the theme on each release.
	define( 'pally_VERSION', '1.7' );
}

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * Priority 0 to make it available to lower priority callbacks.
 *
 * @global int $content_width
 */
function pally_content_width() {
	// This variable is intended to be overruled from themes.
	$GLOBALS['content_width'] = apply_filters( 'pally_content_width', 640 );
}
add_action( 'after_setup_theme', 'pally_content_width', 0 );

// Overwrite rss2-feed with the file in the theme folder.
function custom_rss() {
	get_template_part( 'feed', 'rss2' );
}
remove_all_actions( 'do_feed_rss2' );
add_action( 'do_feed_rss2', 'custom_rss', 10, 1 );


/**
 * Register widget area.
 *
 * @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
 */
function pally_widgets_init() {
	register_sidebar(
		array(
			'name'          => esc_html__( 'Sidebar', 'pally' ),
			'id'            => 'sidebar-1',
			'description'   => esc_html__( 'Add widgets here.', 'pally' ),
			'before_widget' => '<section id="%1$s" class="widget %2$s">',
			'after_widget'  => '</section>',
			'before_title'  => '<h2 class="widget-title">',
			'after_title'   => '</h2>',
		)
	);


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

/**
 * Enqueue scripts and styles.
 */
function pally_scripts() {

	wp_enqueue_script( 'pally_main-script',  get_theme_file_uri() . '/assets/static/js/main.js', array(), '1.0.0', true );

	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'pally_comment-reply' );
	}
}
add_action( 'wp_enqueue_scripts', 'pally_scripts' );

function pally_styles() {
  wp_enqueue_style( 'pally_main-style', get_theme_file_uri() . '/assets/static/css/main.css' );
}
add_action( 'wp_enqueue_scripts', 'pally_styles' );

/**
* Change html output for comment title_reply for a11y reasons (was h3)
**/
function pally_custom_reply_title( $defaults ){
  $defaults['title_reply_before'] = '<h2 id="reply-title" class="comment-reply-title">';
  $defaults['title_reply_after'] = '</h2>';
  return $defaults;
}
add_filter( 'comment_form_defaults', 'pally_custom_reply_title' );

/**
 * Custom template tags for this theme.
 */
require get_theme_file_path('/inc/template-tags.php');

/**
 * Functions which enhance the theme by hooking into WordPress.
 */
require get_theme_file_path('/inc/template-functions.php');

/**
 * Custom Comment Walker template.
 */
require get_theme_file_path('/classes/class-ally-walker-comment.php');

/**
 * Add Gutenberg-Blocks.
 */
require_once get_theme_file_path('/assets/blocks/setup-blocks.php');

/**
 * Customizer additions.
 */
require_once get_theme_file_path('/inc/setup.php');
/**
 * Load Jetpack compatibility file.
 */
if ( defined( 'JETPACK__VERSION' ) ) {
	require get_theme_file_path('/inc/jetpack.php');
}


function pally_wporg_fcs_excerpt_more( $more ) {
    return '';
}
add_filter( 'excerpt_more', 'pally_wporg_fcs_excerpt_more' );

/**
 * Filter the "read more" excerpt string link to the post.
 *
 * @param string $more "Read more" excerpt string.
 * @return string (Maybe) modified "read more" excerpt string.
 */
/*function pally_wpdocs_excerpt_more( $more ) {
    if ( ! is_single() ) {

        $more = sprintf( '<a class="read-more" href="%1$s">%2$s <span class="screen-reader-text">%3$s</span></a>',
            get_permalink( get_the_ID() ),
            __( 'Read more', 'pally' ),
						get_the_title ()
        );
    }

    return $more;
}
add_filter( 'excerpt_more', 'pally_wpdocs_excerpt_more' );
*/

/**
 * Function for Extra A11y Page in Admin menu
 */
function pally_admin_menu() {
	add_menu_page(
		__( 'Accessibility Tips', 'pally' ),
		__( 'About & A11y Tips', 'pally' ),
		'edit_posts',
		'a11y',
		'pally_admin_page_a11y',
		'dashicons-warning',
		3
	);
}
add_action( 'admin_menu', 'pally_admin_menu' );

function pally_admin_style() {
  wp_enqueue_style( 'pally_admin-style', get_stylesheet_directory_uri() . '/assets/admin/admin-style-a11y.css' );
}
add_action( 'admin_enqueue_scripts', 'pally_admin_style');

//remove website field at comment form
function pally_remove_website_field($fields) {
    unset($fields['url']);
		unset($fields['cookies']);
    return $fields;
}
add_filter('comment_form_default_fields', 'pally_remove_website_field');

//Remove role="navigation" from post-navigation
function pally_post_navigation_template( $template ) {
    $template = '
    <nav class="navigation %1$s" aria-label="'. esc_html__( 'Post navigation', 'pally' ) .'">
        <div class="nav-links">%3$s</div>
    </nav>';

    return $template;

}
add_filter( 'navigation_markup_template', 'pally_post_navigation_template' );

//Remove frameborder for iframes
function pally_kill_frameborder( $html ) {
	return str_replace( 'frameborder="0"', "", $html );
}
add_filter('embed_oembed_html', 'pally_kill_frameborder', 10, 3);

//Remove cancel-comment
function pally_remove_comment_reply_link($link) {
  return '';
}
add_filter('cancel_comment_reply_link', 'pally_remove_comment_reply_link' );

//Create cancel comment reply link
function pally_create_cancel_button($post_id) {
 remove_filter('cancel_comment_reply_link', 'pally_remove_comment_reply_link');
 cancel_comment_reply_link(__( 'Cancel', 'pally' ));
}
add_action( 'comment_form', 'pally_create_cancel_button');

//Get rid of self-closing tags
if ( !is_admin() && ( ! defined('DOING_AJAX') || ( defined('DOING_AJAX') && ! DOING_AJAX ) ) ) {
    ob_start( 'pally_html5_slash_fixer' );
    add_action( 'shutdown', 'pally_html5_slash_fixer_flush' );
}
function pally_html5_slash_fixer( $buffer ) {
    return str_replace( ' />', '>', $buffer );
}

function pally_html5_slash_fixer_flush() {
	if(ob_get_length() > 0) ob_end_flush();
}


add_action('after_setup_theme', function() {	
    // Remove SVG 
	remove_action( 'wp_body_open', 'wp_global_styles_render_svg_filters' );
    // Remove duotones
	remove_filter('render_block', 'wp_render_duotone_support');
  });


// breadcrumb
  function pally_nav_breadcrumb() {
   
   $delimiter = '&sol;';
   $home = 'Home'; 
   $before = '<span class="current-page">'; 
   $after = '</span>'; 
   
   if ( !is_home() && !is_front_page() || is_paged() ) {

   echo '<nav class="pally-breadcrumbs">'. esc_html__( 'You are here:', 'pally' ) .' ';
   
   global $post;
   $homeLink = home_url();
   echo '<a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';

   if ( is_home() && is_paged() ) {
    echo '<a href="' . esc_url(get_post_type_archive_link('post')) . '">' . "Blog" .'</a> ' . $delimiter .' ' . esc_html__( 'Page', 'pally' ) . ' ';
   }

   if ( is_category()) {
   global $wp_query;
   $cat_obj = $wp_query->get_queried_object();
   $thisCat = $cat_obj->term_id;
   $thisCat = get_category($thisCat);
   $parentCat = get_category($thisCat->parent);
   if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));
   echo $before . single_cat_title('', false) . $after;
   
   } elseif ( is_day() ) {
   echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
   echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';
   echo $before . get_the_time('d') . $after;
   
   } elseif ( is_month() ) {
   echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
   echo $before . get_the_time('F') . $after;
   
   } elseif ( is_year() ) {
   echo $before . get_the_time('Y') . $after;
   
   } elseif ( is_single() && !is_attachment() ) {
   if ( get_post_type() != 'post' ) {
   $post_type = get_post_type_object(get_post_type());
   $slug = $post_type->rewrite;
   echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a> ' . $delimiter . ' ';
   echo $before . get_the_title() . $after;

   } else {
   $cat = get_the_category(); $cat = $cat[0];
   echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
   echo $before . get_the_title() . $after;
   }
   
   } elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
   echo $before . ''. esc_html__( 'Your search results for', 'pally' ) .'  "' . get_search_query() . '"' . $after;
   
   } elseif ( is_attachment() ) {

   $parent = get_post($post->post_parent);
   $cat = get_the_category($parent->ID); $cat = $cat[0];
   echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
   echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $delimiter . ' ';
   echo $before . get_the_title() . $after;
   
   } elseif ( is_page() && !$post->post_parent ) {
   echo $before . get_the_title() . $after;
   
   } elseif ( is_page() && $post->post_parent ) {
   $parent_id = $post->post_parent;
   $breadcrumbs = array();
   while ($parent_id) {
   $page = get_page($parent_id);
   $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
   $parent_id = $page->post_parent;
   }
   $breadcrumbs = array_reverse($breadcrumbs);
   foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' ';
   echo $before . get_the_title() . $after;
   
   } elseif ( is_search() ) {
   echo $before . ''. esc_html__( 'Your search results for', 'pally' ) .'  "' . get_search_query() . '"' . $after;
   
   } elseif ( is_tag() ) {
   echo $before . ''. esc_html__( 'Posts with tag', 'pally' ) .' "' . single_tag_title('', false) . '"' . $after;
  
   } elseif ( is_404() ) {
   echo $before . ''. esc_html__( '404 Page not found', 'pally' ) .'  ' . $after;

   } elseif ( is_author() ) {
    echo $before . ''. esc_html__( 'About the author', 'pally' ) .'  ' . $after;

    }
  
   if ( get_query_var('paged') ) {
   if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' ';
    echo get_query_var('paged');
   }
   
   echo '</nav>';
   
   } 
  }