<?php
/**
 * Contains the post embed content template part
 *
 * When a post is embedded in an iframe, this file is used to create the content template part
 * output if the active theme does not include an embed-content.php template.
 *
 * @package WordPress
 * @subpackage Theme_Compat
 * @since 4.5.0
 */
?>
    <div <?php post_class( 'wp-embed' ); ?>>
        <?php
        $thumbnail_id = 0;

        if ( has_post_thumbnail() ) {
            $thumbnail_id = get_post_thumbnail_id();
        }

        if ( 'attachment' === get_post_type() && wp_attachment_is_image() ) {
            $thumbnail_id = get_the_ID();
        }

        /**
         * Filters the thumbnail image ID for use in the embed template.
         *
         * @since 4.9.0
         *
         * @param int|false $thumbnail_id Attachment ID, or false if there is none.
         */
        $thumbnail_id = apply_filters( 'embed_thumbnail_id', $thumbnail_id );

        if ( $thumbnail_id ) {
            $aspect_ratio = 1;
            $measurements = array( 1, 1 );
            $image_size   = 'full'; // Fallback.

            $meta = wp_get_attachment_metadata( $thumbnail_id );
            if ( ! empty( $meta['sizes'] ) ) {
                foreach ( $meta['sizes'] as $size => $data ) {
                    if ( $data['height'] > 0 && $data['width'] / $data['height'] > $aspect_ratio ) {
                        $aspect_ratio = $data['width'] / $data['height'];
                        $measurements = array( $data['width'], $data['height'] );
                        $image_size   = $size;
                    }
                }
            }

            /**
             * Filters the thumbnail image size for use in the embed template.
             *
             * @since 4.4.0
             * @since 4.5.0 Added `$thumbnail_id` parameter.
             *
             * @param string $image_size   Thumbnail image size.
             * @param int    $thumbnail_id Attachment ID.
             */
            $image_size = apply_filters( 'embed_thumbnail_image_size', $image_size, $thumbnail_id );

            $shape = $measurements[0] / $measurements[1] >= 1.75 ? 'rectangular' : 'square';

            /**
             * Filters the thumbnail shape for use in the embed template.
             *
             * Rectangular images are shown above the title while square images
             * are shown next to the content.
             *
             * @since 4.4.0
             * @since 4.5.0 Added `$thumbnail_id` parameter.
             *
             * @param string $shape        Thumbnail image shape. Either 'rectangular' or 'square'.
             * @param int    $thumbnail_id Attachment ID.
             */
            $shape = apply_filters( 'embed_thumbnail_image_shape', $shape, $thumbnail_id );
        }

        if ( $thumbnail_id && 'rectangular' === $shape ) :
            ?>
            <div class="wp-embed-featured-image rectangular">
                <a href="<?php the_permalink(); ?>" target="_top">
                    <?php echo wp_get_attachment_image( $thumbnail_id, $image_size ); ?>
                </a>
            </div>
        <?php endif; ?>

        <p class="wp-embed-heading">
            <a href="<?php the_permalink(); ?>" target="_top">
                <?php the_title(); ?>
            </a>
        </p>

        <?php if ( $thumbnail_id && 'square' === $shape ) : ?>
            <div class="wp-embed-featured-image square">
                <a href="<?php the_permalink(); ?>" target="_top">
                    <?php echo wp_get_attachment_image( $thumbnail_id, $image_size ); ?>
                </a>
            </div>
        <?php endif; ?>

        <div class="wp-embed-excerpt"><?php the_excerpt_embed(); ?></div>

        <?php
        /**
         * Prints additional content after the embed excerpt.
         *
         * @since 4.4.0
         */
        do_action( 'embed_content' );
        ?>

        <div class="wp-embed-footer">
            <?php the_embed_site_title(); ?>

            <div class="wp-embed-meta">
                <?php
                /**
                 * Prints additional meta content in the embed template.
                 *
                 * @since 4.4.0
                 */
                do_action( 'embed_content_meta' );
                ?>
            </div>
        </div>
    </div>
<?php