<?php
/**
 * Jetpack Compatibility File
 * See: http://jetpack.com/
 */
	
function twentynineteen_jetpack_setup() {

        /**
         * Add theme support for Infinite Scroll.
         */
        add_theme_support( 'infinite-scroll', array(
                'type'      => 'click',
                'container' => 'main',
                'render'    => 'twentynineteen_infinite_scroll_render',
                'footer'    => 'page',
        ) );

        /**
         * Add theme support for Responsive Videos.
         */
        add_theme_support( 'jetpack-responsive-videos' );

        /**
         * Add theme support for geo-location.
         */
        add_theme_support( 'jetpack-geo-location' );

        /**
         * Add theme support for Content Options.
         */
        add_theme_support( 'jetpack-content-options', array(
                'blog-display' => array( 'content', 'excerpt' ),
        'post-details' => array(
                        'stylesheet' => 'twentynineteen-style',
                        'date'       => '.posted-on',
                        'categories' => '.cat-links',
                        'tags'       => '.tags-links',
                        'author'     => '.byline',
                        'comment'    => '.comments-link',
                ),
                'featured-images'    => array(
                        'archive'  => true,
                        'post'     => true,
                        'page'     => true,
                ),
        ) );
}
add_action( 'after_setup_theme', 'twentynineteen_jetpack_setup' );

/**
 * Custom render function for Infinite Scroll.
 */
function twentynineteen_infinite_scroll_render() {
        while ( have_posts() ) {
                the_post();
                get_template_part( 'template-parts/content/content' );
        }
}

/**
 * Alter gallery widget default width.
 */
function twentynineteen_gallery_widget_content_width( $width ) {
        return 390;
}
add_filter( 'gallery_widget_content_width', 'twentynineteen_gallery_widget_content_width' );

/**
 * Alter featured-image default visibility for content-options.
 */
function twentynineteen_override_post_thumbnail( $width ) {
        $options         = get_theme_support( 'jetpack-content-options' );
        $featured_images = ( ! empty( $options[0]['featured-images'] ) ) ? $options[0]['featured-images'] : null;

        $settings = array(
                'post-default' => ( isset( $featured_images['post-default'] ) && false === $featured_images['post-default'] ) ? '' : 1,
                'page-default' => ( isset( $featured_images['page-default'] ) && false === $featured_images['page-default'] ) ? '' : 1,
        );

        $settings = array_merge( $settings, array(
                'post-option'  => get_option( 'jetpack_content_featured_images_post', $settings['post-default'] ),
                'page-option'  => get_option( 'jetpack_content_featured_images_page', $settings['page-default'] ),
        ) );

        if ( ( ! $settings['post-option'] && is_single() )
        || ( ! $settings['page-option'] && is_singular() && is_page() ) ) {
                return false;
        } else {
                return ! post_password_required() && ! is_attachment() && has_post_thumbnail();
        }
}
add_filter( 'twentynineteen_can_show_post_thumbnail', 'twentynineteen_override_post_thumbnail', 10, 2 );
	
/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function twentynineteen_jetpack_body_classes( $classes ) {
        // Adds a class if we're in the Customizer
        if ( is_customize_preview() ) :
                $classes[] = 'twentynineteen-customizer';
        endif;

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