<?php
/**
 * The Ultralight Custom functions and definitions
 *
 * @package The_Ultralight
 */

if ( ! function_exists( 'the_ultralight_setup' ) ) :
/**
 * Sets up theme defaults and registers support for various WordPress features.
 *
 * Note that this function is hooked into the after_setup_theme hook, which
 * runs before the init hook. The init hook is too late for some features, such
 * as indicating support for post thumbnails.
 */
function the_ultralight_setup() {
	/*
	 * Make theme available for translation.
	 * Translations can be filed in the /languages/ directory.
	 * If you're building a theme based on The Ultralight, use a find and replace
	 * to change 'the-ultralight' to the name of your theme in all the template files.
	 */
	load_theme_textdomain( 'the-ultralight', get_template_directory() . '/languages' );

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

	/*
	 * 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' );

	// This theme uses wp_nav_menu() in one location.
	register_nav_menus( array(
		'primary' => esc_html__( 'Primary', 'the-ultralight' ),
	) );

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

	// Set up the WordPress core custom background feature.
	add_theme_support( 'custom-background', apply_filters( 'the_ultralight_custom_background_args', array(
		'default-color' => 'ffffff',
		'default-image' => '',
	) ) );

	// Add theme support for selective refresh for widgets.
	add_theme_support( 'customize-selective-refresh-widgets' );

	/**
	 * Add support for core custom logo.
	 *
	 * @link https://codex.wordpress.org/Theme_Logo
	 */
	add_theme_support( 'custom-logo', array( 'header-text' => array( 'site-title', 'site-description' ) ) );
    
    /**
     * Add support for custom header.
    */
    add_theme_support( 'custom-header', apply_filters( 'the_ultralight_custom_header_args', array(
		'default-image' => '',
		'width'         => 1920,
		'height'        => 660,
		'header-text'   => false
	) ) );
 
    /**
     * Add Custom Images sizes.
    */    
    add_image_size( 'the-ultralight-schema', 600, 60 );
    add_image_size( 'the-ultralight-post-full', 1100, 500, true );
    add_image_size( 'the-ultralight-post-sidebar', 720, 350, true );
    add_image_size( 'the-ultralight-post-related', 350, 200, true );    
}
endif;
add_action( 'after_setup_theme', 'the_ultralight_setup' );

if( ! function_exists( 'the_ultralight_content_width' ) ) :
/**
 * 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 the_ultralight_content_width() {

    $GLOBALS['content_width'] = apply_filters( 'the_ultralight_content_width', 720 );
}
endif;
add_action( 'after_setup_theme', 'the_ultralight_content_width', 0 );

if( ! function_exists( 'the_ultralight_template_redirect_content_width' ) ) :
/**
* Adjust content_width value according to template.
*
* @return void
*/
function the_ultralight_template_redirect_content_width(){
    $sidebar = the_ultralight_sidebar();
    if( $sidebar ){
        $GLOBALS['content_width'] = 720;
    }else{
        if( is_singular() ){
            if( the_ultralight_sidebar( true ) === 'full-width centered' ){
                $GLOBALS['content_width'] = 640;
            }else{
                $GLOBALS['content_width'] = 1100;               
            }                
        }else{
            $GLOBALS['content_width'] = 1100;
        }
    }
}
endif;
add_action( 'template_redirect', 'the_ultralight_template_redirect_content_width' );

if( ! function_exists( 'the_ultralight_scripts' ) ) :
/**
 * Enqueue scripts and styles.
 */
function the_ultralight_scripts() {
	// Use minified libraries if SCRIPT_DEBUG is false
    $build  = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '/build' : '';
    $suffix = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '' : '.min';
    $ed_jquery_combined = get_theme_mod('ed_jquery_combined',false);
    
    if( the_ultralight_is_woocommerce_activated() ):
    wp_enqueue_style( 'the-ultralight-woocommerce', get_template_directory_uri(). '/css' . $build . '/woocommerce' . $suffix . '.css', array(), THE_ULTRALIGHT_THEME_VERSION );
    endif;

    wp_enqueue_style('the-ultralight-google-fonts', the_ultralight_fonts_url() );
    wp_enqueue_style( 'the-ultralight', get_stylesheet_uri(), array(), THE_ULTRALIGHT_THEME_VERSION );
    
    if( $ed_jquery_combined ){
        wp_enqueue_script( 'the-ultralight', get_template_directory_uri() . '/js/plugins.min.js', array( 'jquery' ), THE_ULTRALIGHT_THEME_VERSION, true );
    }else{
        wp_enqueue_script( 'all', get_template_directory_uri() . '/js' . $build . '/all' . $suffix . '.js', array( 'jquery' ), '5.6.3', true );
        wp_enqueue_script( 'v4-shims', get_template_directory_uri() . '/js' . $build . '/v4-shims' . $suffix . '.js', array( 'jquery' ), '5.6.3', true );    
        wp_enqueue_script( 'layzr', get_template_directory_uri() . '/js' . $build . '/layzr' . $suffix . '.js', array( 'jquery' ), THE_ULTRALIGHT_THEME_VERSION, true );
        wp_enqueue_script( 'the-ultralight-modal-accessibility', get_template_directory_uri() . '/js' . $build . '/modal-accessibility' . $suffix . '.js', array( 'jquery' ), THE_ULTRALIGHT_THEME_VERSION, true );
        wp_enqueue_script( 'the-ultralight', get_template_directory_uri() . '/js' . $build . '/custom' . $suffix . '.js', array( 'jquery' ), THE_ULTRALIGHT_THEME_VERSION, true );
    }
    
    $array = array( 
        'rtl'       => is_rtl(),
        'ajax_url'  => admin_url( 'admin-ajax.php' ),
    );
    
    wp_localize_script( 'the-ultralight', 'the_ultralight_data', $array );
    
	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}
}
endif;
add_action( 'wp_enqueue_scripts', 'the_ultralight_scripts' );

if( ! function_exists( 'the_ultralight_admin_scripts' ) ) :
/**
 * Enqueue admin scripts and styles.
*/
function the_ultralight_admin_scripts(){
    wp_enqueue_style( 'the-ultralight-admin', get_template_directory_uri() . '/inc/css/admin.css', '', THE_ULTRALIGHT_THEME_VERSION );
}
endif; 
add_action( 'admin_enqueue_scripts', 'the_ultralight_admin_scripts' );

if( ! function_exists( 'the_ultralight_body_classes' ) ) :
/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function the_ultralight_body_classes( $classes ) {
	// Adds a class of hfeed to non-singular pages.
	if ( ! is_singular() ) {
		$classes[] = 'hfeed';
	}
    
    // Adds a class of custom-background-image to sites with a custom background image.
	if ( get_background_image() ) {
		$classes[] = 'custom-background-image';
	}
    
    // Adds a class of custom-background-color to sites with a custom background color.
    if ( get_background_color() != 'ffffff' ) {
		$classes[] = 'custom-background-color';
	}
        
	return $classes;
}
endif;
add_filter( 'body_class', 'the_ultralight_body_classes' );

if( ! function_exists( 'the_ultralight_get_the_archive_title' ) ) :
/**
 * Filter Archive Title
*/
function the_ultralight_get_the_archive_title( $title ){
    if ( is_category() ) {
        $title = esc_html(single_cat_title( '', false ));
    } elseif ( is_tag() ) {
        $title = esc_html(single_tag_title( '', false ));
    } elseif ( is_author() ) {
        $title = '<span class="vcard">' . esc_html(get_the_author()) . '</span>' ;
    }elseif ( is_year() ) {
        $title = get_the_date( __( 'Y', 'the-ultralight' ) );
    }elseif ( is_month() ) {
        $title = get_the_date( __( 'F Y', 'the-ultralight' ) );
    }elseif ( is_day() ) {
        $title = get_the_date( __( 'F j, Y', 'the-ultralight' ) );
    }elseif ( is_post_type_archive() ) {
        $title = post_type_archive_title( '', false );
    }elseif ( is_tax() ) {        
        $title = single_term_title( '', false );
    }

    return $title;
}
endif;
add_filter( 'get_the_archive_title', 'the_ultralight_get_the_archive_title' );

if( ! function_exists( 'the_ultralight_post_classes' ) ) :
/**
 * Add custom classes to the array of post classes.
*/
function the_ultralight_post_classes( $classes ){

    if( is_search() ){
        $classes[] = 'post';
    }
    
    return $classes;
}
endif;
add_filter( 'post_class', 'the_ultralight_post_classes' );

/**
 * Add a pingback url auto-discovery header for singularly identifiable articles.
 */
function the_ultralight_pingback_header() {
	if ( is_singular() && pings_open() ) {
		echo '<link rel="pingback" href="', esc_url( get_bloginfo( 'pingback_url' ) ), '">';
	}
}
add_action( 'wp_head', 'the_ultralight_pingback_header' );

if( ! function_exists( 'the_ultralight_change_comment_form_default_fields' ) ) :
/**
 * Change Comment form default fields i.e. author, email & url.
 * https://blog.josemcastaneda.com/2016/08/08/copy-paste-hurting-theme/
*/
function the_ultralight_change_comment_form_default_fields( $fields ){    
    // get the current commenter if available
    $commenter = wp_get_current_commenter();
 
    // core functionality
    $req      = get_option( 'require_name_email' );
    $aria_req = ( $req ? " aria-required='true'" : '' );
    $required = ( $req ? " required" : '' );
    $author   = ( $req ? __( 'Name*', 'the-ultralight' ) : __( 'Name', 'the-ultralight' ) );
    $email    = ( $req ? __( 'Email*', 'the-ultralight' ) : __( 'Email', 'the-ultralight' ) );
 
    // Change just the author field
    $fields['author'] = '<p class="comment-form-author"><label class="screen-reader-text" for="author">' . esc_html__( 'Name', 'the-ultralight' ) . '<span class="required">*</span></label><input id="author" name="author" placeholder="' . esc_attr( $author ) . '" type="text" value="' . esc_attr( $commenter['comment_author'] ) . '" size="30"' . $aria_req . $required . ' /></p>';
    
    $fields['email'] = '<p class="comment-form-email"><label class="screen-reader-text" for="email">' . esc_html__( 'Email', 'the-ultralight' ) . '<span class="required">*</span></label><input id="email" name="email" placeholder="' . esc_attr( $email ) . '" type="text" value="' . esc_attr(  $commenter['comment_author_email'] ) . '" size="30"' . $aria_req . $required. ' /></p>';
    
    $fields['url'] = '<p class="comment-form-url"><label class="screen-reader-text" for="url">' . esc_html__( 'Website', 'the-ultralight' ) . '</label><input id="url" name="url" placeholder="' . esc_attr__( 'Website', 'the-ultralight' ) . '" type="text" value="' . esc_attr( $commenter['comment_author_url'] ) . '" size="30" /></p>'; 
    
    return $fields;    
}
endif;
add_filter( 'comment_form_default_fields', 'the_ultralight_change_comment_form_default_fields' );

if( ! function_exists( 'the_ultralight_change_comment_form_defaults' ) ) :
/**
 * Change Comment Form defaults
 * https://blog.josemcastaneda.com/2016/08/08/copy-paste-hurting-theme/
*/
function the_ultralight_change_comment_form_defaults( $defaults ){    
    $defaults['comment_field'] = '<p class="comment-form-comment"><label class="screen-reader-text" for="comment">' . esc_html__( 'Comment', 'the-ultralight' ) . '</label><textarea id="comment" name="comment" placeholder="' . esc_attr__( 'Comment', 'the-ultralight' ) . '" cols="45" rows="8" aria-required="true" required></textarea></p>';
    
    return $defaults;    
}
endif;
add_filter( 'comment_form_defaults', 'the_ultralight_change_comment_form_defaults' );

if ( ! function_exists( 'the_ultralight_excerpt_more' ) ) :
/**
 * Replaces "[...]" (appended to automatically generated excerpts) with ... * 
 */
function the_ultralight_excerpt_more( $more ) {
	return is_admin() ? $more : ' &hellip; ';
}
endif;
add_filter( 'excerpt_more', 'the_ultralight_excerpt_more' );

if ( ! function_exists( 'the_ultralight_excerpt_length' ) ) :
/**
 * Changes the default 55 character in excerpt 
*/
function the_ultralight_excerpt_length( $length ) {
	$excerpt_length = get_theme_mod( 'excerpt_length', 55 );
    return is_admin() ? $length : absint( $excerpt_length );    
}
endif;
add_filter( 'excerpt_length', 'the_ultralight_excerpt_length', 999 );

if( ! function_exists( 'the_ultralight_get_comment_author_link' ) ) :
/**
 * Filter to modify comment author link
 * @link https://developer.wordpress.org/reference/functions/get_comment_author_link/
 */
function the_ultralight_get_comment_author_link( $return, $author, $comment_ID ){
    $comment = get_comment( $comment_ID );
    $url     = get_comment_author_url( $comment );
    $author  = get_comment_author( $comment );
 
    if ( empty( $url ) || 'http://' == $url )
        $return = '<span itemprop="name">'. esc_html( $author ) .'</span>';
    else
        $return = '<span itemprop="name"><a href=' . esc_url( $url ) . ' rel="external nofollow noopener" class="url" itemprop="url">' . esc_html( $author ) . '</a></span>';

    return $return;
}
endif;
add_filter( 'get_comment_author_link', 'the_ultralight_get_comment_author_link', 10, 3 );

if( ! function_exists( 'the_ultralight_admin_notice' ) ) :
/**
 * Addmin notice for getting started page
*/
function the_ultralight_admin_notice(){
    global $pagenow;
    $theme_args      = wp_get_theme();
    $meta            = get_option( 'the_ultralight_admin_notice' );
    $name            = $theme_args->__get( 'Name' );
    $current_screen  = get_current_screen();
    $dismissnonce    = wp_create_nonce( 'the_ultralight_admin_notice' );
    
    if( 'themes.php' == $pagenow && !$meta ){
        
        if( $current_screen->id !== 'dashboard' && $current_screen->id !== 'themes' ){
            return;
        }

        if( is_network_admin() ){
            return;
        }

        if( ! current_user_can( 'manage_options' ) ){
            return;
        } ?>

        <div class="welcome-message notice notice-info">
            <div class="notice-wrapper">
                <div class="notice-text">
                    <h3><?php esc_html_e( 'Congratulations!', 'the-ultralight' ); ?></h3>
                    <p><?php printf( __( '%1$s is now installed and ready to use. Click below to see theme documentation, plugins to install and other details to get started.', 'the-ultralight' ), esc_html( $name ) ) ; ?></p>
                    <p><a href="<?php echo esc_url( admin_url( 'themes.php?page=the-ultralight-getting-started' ) ); ?>" class="button button-primary"><?php esc_html_e( 'Go to the getting started.', 'the-ultralight' ); ?></a></p>
                    <p class="dismiss-link"><strong><a href="?the_ultralight_admin_notice=1&_wpnonce=<?php echo esc_attr( $dismissnonce ); ?>"><?php esc_html_e( 'Dismiss', 'the-ultralight' ); ?></a></strong></p>
                </div>
            </div>
        </div>
    <?php }
}
endif;
add_action( 'admin_notices', 'the_ultralight_admin_notice' );

if( ! function_exists( 'the_ultralight_update_admin_notice' ) ) :
/**
 * Updating admin notice on dismiss
*/
function the_ultralight_update_admin_notice(){

    if (!current_user_can('manage_options')) {
        return;
    }

     // Bail if the nonce doesn't check out
     if ( ( isset( $_GET['the_ultralight_admin_notice'] ) && $_GET['the_ultralight_admin_notice'] = '1' ) && wp_verify_nonce( $_GET['_wpnonce'], 'the_ultralight_admin_notice' ) ) {
        update_option( 'the_ultralight_admin_notice', true );
    }
}
endif;
add_action( 'admin_init', 'the_ultralight_update_admin_notice' );