bp_activity_link_preview( $content,  $activity )

function bp_activity_link_preview( $content, $activity ) {

	$activity_id = $activity->id;

	$preview_data = bp_activity_get_meta( $activity_id, '_link_preview_data', true );

	if ( empty( $preview_data['url'] ) ) {
		return $content;
	}

	$preview_data = bp_parse_args( $preview_data, [
		'title'       => '',
		'description' => '',
	] );

	$description = $preview_data['description'];
	$read_more   = ' <a href="' . esc_url( $preview_data['url'] ) . '" target="_blank" rel="nofollow">' . __( 'Read more', 'buddyboss' ) . '...</a>';
	$description = wp_trim_words( $description, 40, $read_more );

	$content = make_clickable( $content );

	$content .= '<div class="activity-link-preview-container">';
	if ( ! empty( $preview_data['attachment_id'] ) ) {
		$image_url = wp_get_attachment_image_url( $preview_data['attachment_id'], 'full' );
		$content   .= '<div class="activity-link-preview-image-wrap"><div class="activity-link-preview-image">';
		$content   .= '<a href="' . esc_url( $preview_data['url'] ) . '" target="_blank"><img src="' . $image_url . '" /></a>';
		$content   .= '</div></div>';
	}
	$content .= '<div class="activity-link-preview-content">';
	$content .= '<div class="activity-link-preview-title"><a href="' . esc_url( $preview_data['url'] ) . '" target="_blank" rel="nofollow">' . addslashes( $preview_data['title'] ) . '</a></div>';
	$content .= '<div class="activity-link-preview-body">' . $description . '</div>';
	$content .= '</div>';
	$content .= '</div>';

	return $content;
}