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<?php
/**
 * Nasio functions and definitions
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package WordPress
 * @subpackage Nasio
 * @version 1.0
 */

function nasio_setup() {
	// Make theme available for translation.
	load_theme_textdomain( 'nasio', get_template_directory() . '/languages' );
	// Let WordPress manage the document title.
	add_theme_support( 'title-tag' );
	// Enable support for Post Thumbnails on posts and pages.
	add_theme_support( 'post-thumbnails' );
	add_theme_support( 'automatic-feed-links' );
	// This theme uses wp_nav_menu() in two locations.
	register_nav_menus(
		array(
			'top'    => __( 'Top Menu', 'nasio' ),
			'social' => __( 'Social Links Menu', 'nasio' ),
		)
	);

	/*
	 * 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',
		)
	);

	// Add theme support for Custom Logo.
	add_theme_support(
		'custom-logo',
		array(
			'height'      => 250,
			'width'       => 250,
			'flex-height' => true,
			'flex-width'  => true,
		)
	);

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

}

add_action( 'after_setup_theme', 'nasio_setup' );

if ( isset( $content_width ) ) {
	$nasio_content_width = 900;
}

// Register widget area.

function nasio_widgets_init() {
	register_sidebar(
		array(
			'name'          => __( 'Right Sidebar', 'nasio' ),
			'id'            => 'sidebar-1',
			'description'   => __( 'Add widgets here to appear in your sidebar on blog posts and archive pages.', 'nasio' ),
			'before_widget' => '<section id="%1$s" class="sidebar-box">',
			'after_widget'  => '</section>',
			'before_title'  => '<h3 class="heading">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'name'          => __( 'Footer 1', 'nasio' ),
			'id'            => 'sidebar-2',
			'description'   => __( 'Add 1 widget here to appear in your footer.', 'nasio' ),
			'before_widget' => '<section id="%1$s" class="col-footer">',
			'after_widget'  => '</section>',
			'before_title'  => '<h3 class="heading">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'name'          => __( 'Footer 2', 'nasio' ),
			'id'            => 'sidebar-3',
			'description'   => __( 'Add 2 widgets here to appear in your footer.', 'nasio' ),
			'before_widget' => '<section id="%1$s">',
			'after_widget'  => '</section>',
			'before_title'  => '<h3 class="widget-title">',
			'after_title'   => '</h3>',
		)
	);

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

/**
 * Enqueue scripts and styles.
 */

function nasio_styles() {
	// Theme Navigation
	wp_enqueue_script( 'navigation', get_template_directory_uri() . '/assets/js/navigation.min.js', array( 'jquery' ), '', true );
	// Toggle Dark Theme Mode
	wp_enqueue_script( 'dark-mode', get_template_directory_uri() . '/assets/js/toggleDarkMode.min.js', array(), '', true );
	// Theme stylesheet.
	wp_enqueue_style( 'nasio-css', get_template_directory_uri() . '/style.min.css', '', '2.3.2' );
}

add_action( 'wp_enqueue_scripts', 'nasio_styles' );

/**
 * Enqueue fonts to the footer for better peformance
 */

function nasio_fonts() {
	// Font Awesome
	wp_enqueue_style( 'font-awesome', get_template_directory_uri() . '/public/css/font-awesome.min.css' );
	// Add google fonts
	wp_enqueue_style( 'Merriweather', '//fonts.googleapis.com/css?family=Merriweather&display=swap' );
	wp_enqueue_style( 'OpenSans', '//fonts.googleapis.com/css2?family=Open+Sans:wght@300;400&display=swap' );
}
add_action( 'wp_footer', 'nasio_fonts' );

// Remove default width and height attributes from image tags

function nasio_remove_image_size_attributes( $html ) {
	return preg_replace( '/(width|height)="\d*"/', '', $html );
}
// Remove image size attributes from post thumbnails
add_filter( 'post_thumbnail_html', 'nasio_remove_image_size_attributes' );

// Remove image size attributes from images added to a WordPress post
add_filter( 'image_send_to_editor', 'nasio_remove_image_size_attributes' );


function nasio_front_page_template( $template ) {
	return is_home() ? '' : $template;
}
add_filter( 'frontpage_template', 'nasio_front_page_template' );

function nasio_posted_on() {
	if ( is_sticky() && is_home() && ! is_paged() ) {
			echo '<span class="featured-post">' . __( 'Sticky', 'nasio' ) . '</span>';
	}

	// Set up and print post meta information.
	printf(
		'<span><a href="%1$s" rel="bookmark" class="entry-date" datetime="%2$s">%3$s</a></span><span><a class="author-meta-field" href="%4$s" rel="author">%5$s</a></span>',
		esc_url( get_permalink() ),
		esc_attr( get_the_date( 'c' ) ),
		esc_html( get_the_date() ),
		esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
		esc_attr( get_the_author() )
	);
}

function nasio_get_category() {
	$categories = get_the_category();
	$separator  = ' ';
	$output     = '';
	if ( ! empty( $categories ) ) {
		foreach ( $categories as $category ) {
			$output .= '<span><a class="category-meta-field" href="' . esc_url( get_category_link( $category->term_id ) ) . '" alt="' . esc_attr( sprintf( __( 'View all posts in %s', 'nasio' ), $category->name ) ) . '">' . esc_html( $category->name ) . '</a></span>' . $separator;
		}
		echo trim( $output, $separator );
	}
}

// Make drop down menu accessible by screen readers

/**
 * WCAG 2.0 Attributes for Dropdown Menus
 *
 * Adjustments to menu attributes tot support WCAG 2.0 recommendations
 * for flyout and dropdown menus.
 *
 * @ref https://www.w3.org/WAI/tutorials/menus/flyout/
 */
function nasio_nav_menu_link_attributes( $atts, $item, $args, $depth ) {
	// Add [aria-haspopup] and [aria-expanded] to menu items that have children
	$item_has_children = in_array( 'menu-item-has-children', $item->classes );
	if ( $item_has_children ) {
		$atts['aria-haspopup'] = 'true';
		$atts['aria-expanded'] = 'false';
	}
	return $atts;
}

add_filter( 'nav_menu_link_attributes', 'nasio_nav_menu_link_attributes', 10, 4 );

/**
 * Extend Recent Posts Widget
 *
 * Adds Images to the default WordPress Recent Posts Widget
 */

class Nasio_Recent_Posts_Widget extends WP_Widget_Recent_Posts {

	function widget( $args, $instance ) {

		if ( ! isset( $args['widget_id'] ) ) {
			$args['widget_id'] = $this->id;
		}

		$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Posts', 'nasio' );

		/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );

		$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 3;
		if ( ! $number ) {
			$number = 3;
		}
		$show_date = isset( $instance['show_date'] ) ? $instance['show_date'] : false;

		/**
		 * Filter the arguments for the Recent Posts widget.
		 *
		 * @since 3.4.0
		 *
		 * @see WP_Query::get_posts()
		 *
		 * @param array $args An array of arguments used to retrieve the recent posts.
		 */

		$r = new WP_Query(
			apply_filters(
				'widget_posts_args',
				array(
					'posts_per_page'      => $number,
					'no_found_rows'       => true,
					'post_status'         => 'publish',
					'ignore_sticky_posts' => true,
				)
			)
		);

		if ( $r->have_posts() ) :
			echo $args['before_widget']; ?>
			<?php
			if ( $title ) {
				echo $args['before_title'] . $title . $args['after_title'];
			}
			?>
			<ul>
			<?php
			while ( $r->have_posts() ) :
				$r->the_post();
				?>
				<li>
				<?php
				$featured_image_url = wp_get_attachment_url( get_post_thumbnail_id( get_the_ID() ) );
				if ( ! empty( $featured_image_url ) ) {
						the_post_thumbnail();
				} else {
					?>
						 <img class="default-image" src="<?php echo esc_url( get_template_directory_uri() ); ?>/images/no-image.jpg"
						alt="<?php the_title(); ?>" /> 
												<?php
				}
				?>
					<a href="<?php esc_url( the_permalink() ); ?>"><?php esc_html( get_the_title() ) ? the_title() : the_ID(); ?></a>
					<?php if ( $show_date ) : ?>
						<span class="post-date"><?php echo esc_html( get_the_date() ); ?></span>
					<?php endif; ?>
				</li>
			<?php endwhile; ?>
			</ul>
			<?php echo $args['after_widget']; ?>
			<?php
			// Reset the global $the_post as this query will have stomped on it
			wp_reset_postdata();
		endif;
	}
}

function nasio_recent_widget_registration() {
	register_widget( 'Nasio_Recent_Posts_Widget' );
}
add_action( 'widgets_init', 'nasio_recent_widget_registration' );

/* Modify comments markup*/

function nasio_modify_comment_output( $comment, $depth, $args ) {
	$tag = ( 'div' === $args['style'] ) ? 'div' : 'li';
	?>
<<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>"
	<?php comment_class( empty( $args['has_children'] ) ? '' : 'parent', $comment ); ?>>
	<article id="div-comment-<?php comment_ID(); ?>" class="comment-body">
		<footer class="comment-meta">
			<div class="comment-author vcard">
				<?php
				if ( 0 != $args['avatar_size'] ) {
					echo get_avatar( $comment, $args['avatar_size'] );}
				?>
				<?php
				/* translators: %s: comment author link */
				printf(
					__( '%s <span class="says">says:</span>', 'nasio' ),
					sprintf( '<b class="fn">%s</b>', get_comment_author_link( $comment ) )
				);
				?>
			</div><!-- .comment-author -->

			<div class="comment-metadata">
				<a href="<?php echo esc_url( get_comment_link( $comment, $args ) ); ?>">
					<time datetime="<?php comment_time( 'c' ); ?>">
						<?php
						printf( _x( '%s ago', '%s = human-readable time difference', 'nasio' ), human_time_diff( get_comment_time( 'U' ), current_time( 'timestamp' ) ) );
						?>
					</time>
				</a>
				<?php edit_comment_link( __( 'edit', 'nasio' ), '<span class="edit-link">', '</span>' ); ?>
			</div><!-- .comment-metadata -->

			<?php if ( '0' == $comment->comment_approved ) : ?>
			<p class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'nasio' ); ?></p>
			<?php endif; ?>
		</footer><!-- .comment-meta -->

		<div class="comment-content">
			<?php comment_text(); ?>
		</div><!-- .comment-content -->

	</article><!-- .comment-body -->
	<?php
}

wp_list_comments( 'callback=nasio_modify_comment_output' );

function nasio_truncate_string( $phrase, $max_words ) {

	$phrase_array = explode( ' ', $phrase );

	if ( count( $phrase_array ) > $max_words && $max_words > 0 ) {
		$phrase = implode( ' ', array_slice( $phrase_array, 0, $max_words ) ) . __( '...', 'nasio' );
	}

	return $phrase;

}

if ( function_exists( 'get_parent_theme_file_path' ) ) { // Since WordPress 4.7
	// ADD OPTIONS TO THEME CUSTOMIZER
	require get_parent_theme_file_path( '/inc/customizer.php' );

	// IMPLEMENT CUSTOM HEADER FEATURE.
	require get_parent_theme_file_path( '/inc/custom-header.php' );
} else {
	require get_template_directory() . '/inc/customizer.php';
	require get_template_directory() . '/inc/custom-header.php';
}

// PAGINATION
function nasio_numeric_posts_nav() {

	if ( is_singular() ) {
		return;
	}

	global $wp_query;

	/** Stop execution if there's only 1 page */
	if ( $wp_query->max_num_pages <= 1 ) {
		return;
	}

	$paged = get_query_var( 'paged' ) ? absint( get_query_var( 'paged' ) ) : 1;
	$max   = intval( $wp_query->max_num_pages );

	/** Add current page to the array */
	if ( $paged >= 1 ) {
		$links[] = $paged;
	}

	/** Add the pages around the current page to the array */
	if ( $paged >= 3 ) {
		$links[] = $paged - 1;
		$links[] = $paged - 2;
	}

	if ( ( $paged + 2 ) <= $max ) {
		$links[] = $paged + 2;
		$links[] = $paged + 1;
	}

	echo '<div class="navigation"><ul>' . "\n";

	/** Previous Post Link */
	if ( get_previous_posts_link() ) {
		printf( '<li>%s</li>' . "\n", get_previous_posts_link( '&#x00AB' ) );
	}

	/** Link to first page, plus ellipses if necessary */
	if ( ! in_array( 1, $links ) ) {
		$class = 1 == $paged ? ' class="active"' : '';

		printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( 1 ) ), '1' );

		if ( ! in_array( 2, $links ) ) {
			echo '<li>...</li>';
		}
	}

	/** Link to current page, plus 2 pages in either direction if necessary */
	sort( $links );
	foreach ( (array) $links as $link ) {
		$class = $paged == $link ? ' class="active"' : '';
		printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( $link ) ), $link );
	}

	/** Link to last page, plus ellipses if necessary */
	if ( ! in_array( $max, $links ) ) {
		if ( ! in_array( $max - 1, $links ) ) {
			echo '<li>...</li>' . "\n";
		}

		$class = $paged == $max ? ' class="active"' : '';
		printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( $max ) ), $max );
	}

	/** Next Post Link */
	if ( get_next_posts_link() ) {
		printf( '<li>%s</li>' . "\n", get_next_posts_link( '&#x00BB' ) );
	}

	echo '</ul></div>' . "\n";

}

/**
 * Enable dark theme mode
 *
 * @link https://wordpress.org/plugins/wp-night-mode/
 */

function nasio_dark_mode( $classes ) {

	$nasio_night_mode = isset( $_COOKIE['nasioNightMode'] ) ? $_COOKIE['nasioNightMode'] : '';

	if ( $nasio_night_mode !== '' ) {
		// Add 'dark-mode' body class
			return array_merge( $classes, array( 'dark-mode' ) );
	}
	return $classes;
}

add_filter( 'body_class', 'nasio_dark_mode' );

/**
 * Facebook Open Graph
 * Display featured posts as og:image on single page
 *
 * @link https://stackoverflow.com/questions/28735174/wordpress-ogimage-featured-image
 */

function nasio_fb_open_graph() {
	if ( is_single() && has_post_thumbnail() ) {
		echo '<meta property="og:image" content="' . esc_attr( get_the_post_thumbnail_url( get_the_ID() ) ) . '" />';
	}
}

add_action( 'wp_head', 'nasio_fb_open_graph' );