<?php
/**
 * Customs RSS template with related posts.
 *
 * Place this file in your theme's directory.
 *
 * @package sometheme
 * @subpackage theme
 */
/**
 * Get related posts based on tags.
 *
 * THIS IS OPTIONAL!
 */
function my_rss_related() {
    global $post;
    // Setup post data.
    $pid     = $post->ID;
    $tags    = wp_get_post_tags( $pid );
    $tag_ids = array();
    // Loop through post tags.
    foreach ( $tags as $individual_tag ) {
        $tag_ids[] = $individual_tag->term_id;
    }
    // Execute WP_Query.
    $related_by_tag = new WP_Query( array(
        'tag__in'          => $tag_ids,
        'post__not_in'     => array( $pid ),
        'posts_per_page'   => 3,
    ) );
    // Loop through posts and build HTML.
    if ( $related_by_tag->have_posts() ) :
        echo 'Related:<br />';
            while ( $related_by_tag->have_posts() ) : $related_by_tag->the_post();
                echo '<a href="' . get_permalink() . '">' . get_the_title() . '</a><br />';
            endwhile;
        else :
            echo '';
    endif;
    wp_reset_postdata();
}
/**
 * Feed defaults.
 */
header( 'Content-Type: ' . feed_content_type( 'rss-http' ) . '; charset=' . get_option( 'blog_charset' ), true );
$frequency  = 1;        // Default '1'. The frequency of RSS updates within the update period.
$duration   = 'hourly'; // Default 'hourly'. Accepts 'hourly', 'daily', 'weekly', 'monthly', 'yearly'.
$postlink   = '<br /><a href="' . get_permalink() . '">See the rest of the story at joshwrye.com</a><br /><br />';
$email      = get_the_author_meta( 'email');
$author     = get_the_author();
$postimages = wp_get_attachment_image_src( get_post_thumbnail_id( get_the_ID() ), 'large' );
// Check for post image. If none, fallback to a default.
$postimage = ( $postimages ) ? $postimages[0] : get_stylesheet_directory_uri() . '/images/default.jpg';
/**
 * Start RSS feed.
 */
echo '<?xml version="1.0" encoding="' . get_option( 'blog_charset' ) . '"?' . '>'; ?>

<rss version="2.0"
    xmlns:content="http://purl.org/rss/1.0/modules/content/"
    xmlns:wfw="http://wellformedweb.org/CommentAPI/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:atom="http://www.w3.org/2005/Atom"
    xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
    xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
    xmlns:property="https://joshwrye.com/ns/property/"
    <?php do_action( 'rss2_ns' ); ?>
>

    <!-- RSS feed defaults -->
    <channel>
        <title><?php bloginfo_rss( 'name' ); wp_title_rss(); ?></title>
        <link><?php bloginfo_rss( 'url' ) ?></link>
        <description><?php bloginfo_rss( 'description' ) ?></description>
        <lastBuildDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_lastpostmodified( 'GMT' ), false ); ?></lastBuildDate>
        <language><?php bloginfo_rss( 'language' ); ?></language>
        <sy:updatePeriod><?php echo apply_filters( 'rss_update_period', $duration ); ?></sy:updatePeriod>
        <sy:updateFrequency><?php echo apply_filters( 'rss_update_frequency', $frequency ); ?></sy:updateFrequency>
        <atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" />

        <!-- Feed Logo (optional) -->
        <image>
            <url>http://mysite.com/somelogo.png</url>
            <title>
                <?php bloginfo_rss( 'description' ) ?>
            </title>
            <link><?php bloginfo_rss( 'url' ) ?></link>
        </image>

        <?php do_action( 'rss2_head' ); ?>

        <!-- Start loop -->
        <?php while( have_posts() ) : the_post();

        $rssPropertyArray = array(
            "propImage" => get_field('property_image'),
            "propAddress" => get_field('street_address'),
            "soldPrice" => get_field('sold_price'),
            "pricePerSqFt" => get_field('price_per_sqft'),
            "daysOnMarket" => get_field('days_on_market'),
            "beds" => get_field('beds'),
            "baths" => get_field('baths'),
            "squareFootage" => get_field('square_footage'),
            "additionalInfo" => get_field('additional_info'),
            "originalDate" => get_field('original_date'),
            "originalPrice" => get_field('original_price'),
            "appreciationValue" => get_field('appreciation_value'),
            "appreciationTime" => get_field('appreciation_time'),
            "trackerDate" => get_field('tracker_date'),
            "trackerSold" => get_field('tracker_homes_sold'),
            "trackerValue" => get_field('tracker_appreciation_value'),
            "trackerPercent" => get_field('tracker_appreciation_percent'),
            "trackerYear" => get_field('tracker_year')
        );

        ?>

            <item>
                <title><?php the_title_rss(); ?></title>
                <link><?php the_permalink_rss(); ?></link>
                <guid isPermaLink="false"><?php the_guid(); ?></guid>
                <author><?php echo $email ?><?php echo ' (' . $author . ')' ?></author>
                <image>
                    <url><?php echo esc_url( $postimage ); ?>"/></url>
                </image>
                <pubDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_post_time( 'Y-m-d H:i:s', true ), false ); ?></pubDate>

        <?
                if(!empty($rssPropertyArray)){
                    foreach ($rssPropertyArray as $k => $v) {
                        $output .= '<property:'.$k.'>'.$v.'</property:'.$k.'>';
                    };
                };
        ?>

                <!-- Echo content and related posts -->
                <content:encoded>
                    <![CDATA[<?php echo the_excerpt_rss(); echo $postlink; echo my_rss_related(); ?>]]>
                </content:encoded>
            </item>

        <?php endwhile; ?>
        <!-- End loop -->
    </channel>
</rss>