<?php
/**
 * Brilliant functions and definitions.
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package Brilliant
 * @since Brilliant 1.0
 */


if ( ! function_exists( 'brilliant_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 brilliant_setup() {
	
	// Make theme available for translation. Translations can be filed in the /languages/ directory
	load_theme_textdomain( 'brilliant', 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
	add_theme_support( 'title-tag' );
	
	// Enable support for custom logo.
	add_theme_support( 'custom-logo', array(
		'height'      => 400,
		'width'       => 400,
		'flex-height' => true,
	) );
	
	// Enable support for Post Thumbnail
	add_theme_support( 'post-thumbnails' );
	add_image_size( 'brilliant-large', 780, 520, true );
	add_image_size( 'brilliant-fullwidth', 1200, 520, true );
	
	// Set the default content width.
	$GLOBALS['content_width'] = 1160;
	
	// This theme uses wp_nav_menu() in one location.
	register_nav_menus( array(
		'main_menu' => esc_html__( 'Main Menu', 'brilliant' ),
	) );

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

	// Enable support for Post Formats
	add_theme_support('post-formats', array( 'image', 'video', 'audio', 'gallery', 'quote' ) );
		
	// Set up the WordPress Custom Background Feature.
	$defaults = array(
    'default-color'	=> 'f4f4f4',
    'default-image'	=> '',
	);
	add_theme_support( 'custom-background', $defaults );
	
	// This theme styles the visual editor to resemble the theme style,
	add_editor_style( array( 'css/editor-style.css', brilliant_fonts_url() ) );
	
	// Custom template tags for this theme
	require get_template_directory() . '/inc/template-tags.php';
	
	// Theme Customizer
	require get_template_directory() . '/inc/customizer.php';
	
	// Load Jetpack compatibility file
	require get_template_directory() . '/inc/jetpack.php';
	
}
endif;
add_action( 'after_setup_theme', 'brilliant_setup' );


if ( ! function_exists( 'brilliant_fonts_url' ) ) :
/**
 * Register Google fonts.
 *
 * @return string Google fonts URL for the theme.
 */
function brilliant_fonts_url() {
	$fonts_url = '';
	$fonts     = array();
	$subsets   = 'latin,latin-ext';

	/* translators: If there are characters in your language that are not supported by Raleway, translate this to 'off'. Do not translate into your own language. */
	if ( 'off' !== _x( 'on', 'Raleway: on or off', 'brilliant' ) ) {
		$fonts[] = 'Raleway:400,700,400italic,700italic';
	}

	/* translators: If there are characters in your language that are not supported by Playfair Display, translate this to 'off'. Do not translate into your own language. */
	if ( 'off' !== _x( 'on', 'Playfair Display: on or off', 'brilliant' ) ) {
		$fonts[] = 'Playfair Display:400,700';
	}
	
	/* translators: If there are characters in your language that are not supported by Crimson Text, translate this to 'off'. Do not translate into your own language. */
	if ( 'off' !== _x( 'on', 'Crimson Text: on or off', 'brilliant' ) ) {
		$fonts[] = 'Crimson Text:400,400italic';
	}
	
	/* translators: To add an additional character subset specific to your language, translate this to 'greek', 'cyrillic', 'devanagari' or 'vietnamese'. Do not translate into your own language. */
	$subset = _x( 'no-subset', 'Add new subset (greek, cyrillic, devanagari, vietnamese)', 'brilliant' );

	if ( 'cyrillic' == $subset ) {
		$subsets .= ',cyrillic,cyrillic-ext';
	} elseif ( 'greek' == $subset ) {
		$subsets .= ',greek,greek-ext';
	} elseif ( 'devanagari' == $subset ) {
		$subsets .= ',devanagari';
	} elseif ( 'vietnamese' == $subset ) {
		$subsets .= ',vietnamese';
	}

	if ( $fonts ) {
		$fonts_url = add_query_arg( array(
			'family' => urlencode( implode( '|', $fonts ) ),
			'subset' => urlencode( $subsets ),
		), '//fonts.googleapis.com/css' );
	}

	return $fonts_url;
}
endif;


/**
 * Enqueue scripts and styles.
 */
function brilliant_scripts() {
	
	// Add Google fonts, used in the main stylesheet.
	wp_enqueue_style( 'brilliant-fonts', brilliant_fonts_url(), array(), null );
	
	// Add Icons font, used in the main stylesheet.
	wp_enqueue_style( 'brilliant-icons', get_template_directory_uri() . '/fonts/elegant-icons.css', array(), '1.0.0' );
		
	// Theme stylesheet.
	wp_enqueue_style( 'brilliant-style', get_stylesheet_uri(), array(), '1.1.2' );
	
	wp_enqueue_script( 'brilliant-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20151215', true );

	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}
	
	wp_enqueue_script( 'brilliant-script', get_template_directory_uri() . '/js/main.js', array( 'jquery' ), '20171006', true );
	
}
add_action( 'wp_enqueue_scripts', 'brilliant_scripts' );


/**
 * Register widget area.
 *
 * @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
 */
function brilliant_widgets_init() {
	register_sidebar( array(
		'name'          => __( 'Sidebar', 'brilliant' ),
		'id'            => 'sidebar-1',
		'description'   => __( 'Add widgets here to appear in your Sidebar.', 'brilliant' ),
		'before_widget' => '<section id="%1$s" class="widget %2$s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>',
	) );
	register_sidebar( array(
		'name'          => __( 'Footer Widget Area - Left', 'brilliant' ),
		'id'            => 'footer-1',
		'description'   => __( 'Add widgets here to appear in your footer.', 'brilliant' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title"><span>',
		'after_title'   => '</span></h3>',
	) );
	register_sidebar( array(
		'name'          => __( 'Footer Widget Area - Center', 'brilliant' ),
		'id'            => 'footer-2',
		'description'   => __( 'Add widgets here to appear in your footer.', 'brilliant' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title"><span>',
		'after_title'   => '</span></h3>',
	) );
	register_sidebar( array(
		'name'          => __( 'Footer Widget Area - Right', 'brilliant' ),
		'id'            => 'footer-3',
		'description'   => __( 'Add widgets here to appear in your footer.', 'brilliant' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title"><span>',
		'after_title'   => '</span></h3>',
	) );
}
add_action( 'widgets_init', 'brilliant_widgets_init' );


/**
 * Main Menu Fallback
 *
 */
function brilliant_fallback_menu() {
	echo '<ul class="main-menu">';
	wp_list_pages( 'title_li=' );
	echo '</ul>';
}


/**
 * Display Custom Logo
 *
 */
function brilliant_custom_logo() { 
	if ( is_front_page() && is_home() ) : ?>
		<?php if ( function_exists( 'the_custom_logo' ) && has_custom_logo() ) { ?>
			<h1 class="site-title has-custom-logo"><?php the_custom_logo(); ?></h1>
		<?php } else { ?>
			<h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>
		<?php } ?>
	<?php else : ?>
		<?php if ( function_exists( 'the_custom_logo' ) && has_custom_logo() ) { ?>
			<p class="site-title has-custom-logo"><?php the_custom_logo(); ?></p>
		<?php } else { ?>
			<p class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></p>
		<?php } ?>
	<?php
	endif;
}


/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function brilliant_body_classes( $classes ) {
	// Adds a class of group-blog to blogs with more than 1 published author.
	if ( is_multi_author() ) {
		$classes[] = 'group-blog';
	}

	// Adds a class of hfeed to non-singular pages.
	if ( ! is_singular() ) {
		$classes[] = 'hfeed';
	}
	
	$blog_layout = esc_attr( get_theme_mod('blog_layout', 'blog-layout2') );
	$archive_layout = esc_attr( get_theme_mod('archive_layout', 'archive-layout2') );
	
	// Adds a class to Homepage
	if ( is_home() ) {
    	$classes[] = $blog_layout;
	}
	
	// Adds a class to Archive and Search Pages
	if ( is_archive() || is_search() ) {
    	$classes[] = $archive_layout;
	}

	return $classes;
}
add_filter( 'body_class', 'brilliant_body_classes' );


/**
 * Filter the except length.
 *
 */
function brilliant_excerpt_length( $excerpt_length ) {
	
	if ( is_admin() ) {
		return $excerpt_length;
	}
	
	if ( is_home() ) {
		$excerpt_length = get_theme_mod( 'blog_excerpt_length', 25 );
	} elseif ( is_archive() || is_search() ) {
		$excerpt_length = get_theme_mod( 'archive_excerpt_length', 25 );
	} else {
		$excerpt_length = 25;
	}
    return intval($excerpt_length);
}
add_filter( 'excerpt_length', 'brilliant_excerpt_length', 999 );


/**
 * Filter the "read more" excerpt string link to the post.
 *
 * @param string $more "Read more" excerpt string.
 */
function brilliant_excerpt_more( $more ) {
    if ( is_admin() ) {
		return $more;
	}
    
    if ( get_theme_mod( 'show_read_more', 1 ) ) {
		$more = sprintf( '<span class="read-more-link"><a class="read-more" href="%1$s">%2$s &rsaquo;</a></span>',
	        esc_url( get_permalink( get_the_ID() ) ),
	        __( 'Read More', 'brilliant' )
	    );
	    return ' &hellip; ' . $more;
    } else {
	    return $more;
    }
}
add_filter( 'excerpt_more', 'brilliant_excerpt_more' );


/**
 * Blog: Post Templates
 *
 */
function brilliant_blog_template() {
	$blog_layout = get_theme_mod('blog_layout', 'blog-layout4');
	
	if ( $blog_layout == 'blog-layout2' || $blog_layout == 'blog-layout4' ) { 
		$blog_template = 'content-grid';
	} else {
		$blog_template = 'content';
	}
	return sanitize_file_name($blog_template);
} 


/**
 * Blog: Post Columns
 *
 */
function brilliant_blog_column() {
	$blog_layout = get_theme_mod('blog_layout', 'blog-layout4');
	
	if ( $blog_layout == 'blog-layout2' || $blog_layout == 'blog-layout4' ) { 
		$blog_column = 'col-6 col-sm-6';
	} else {
		$blog_column = 'col-12';
	}
	return esc_attr($blog_column);
} 


/**
 * Archive: Post Templates
 *
 */
function brilliant_archive_template() {
	$archive_layout = get_theme_mod('archive_layout', 'archive-layout2');
	
	if ( $archive_layout == 'archive-layout2' ) { 
		$archive_template = 'content-grid';
	} else {
		if ( is_search() ) {
		$archive_template = 'content-search';
		} else {
		$archive_template = 'content';	
		}
	}
	return sanitize_file_name($archive_template);
} 


/**
 * Archive: Post Columns
 *
 */
function brilliant_archive_column() {
	$archive_layout = get_theme_mod('archive_layout', 'archive-layout2');
	
	if ( $archive_layout == 'archive-layout2' ) { 
		$archive_column = 'col-6 col-sm-6';  
	} else { 
		$archive_column = 'col-12'; 
	}
	return esc_attr($archive_column);
} 


/**
 * Prints Credits in the Footer
 */
function brilliant_credits() {
	$website_credits = '';
	$website_author = get_bloginfo('name');
	$website_date = date_i18n(__( 'Y', 'brilliant' ) );
	$website_credits = '&copy; ' . $website_date . ' ' . $website_author;	
	echo esc_html($website_credits);
}


/**
 * Add Upsell "pro" link to the customizer
 *
 */
require_once( trailingslashit( get_template_directory() ) . '/inc/customize-pro/class-customize.php' );