Adds a JavaScript redirect to the home page when the event is expired. Event Espresso 4

ee_expired_events_redirect.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

function ee_add_redirect_expired_events() {
  if ('espresso_events' == get_post_type() && is_single() ){
    $id = get_the_id();
    $event = EEH_Event_View::get_event( $id );
    if( $event instanceof EE_Event ) {
        $where_params_for_event = array(array('EVT_ID' => $event->ID()));
        if (EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::upcoming, $where_params_for_event) == 0 &&
        EEM_Datetime::instance()->get_datetime_count_for_status(EE_Datetime::expired, $where_params_for_event) > 0
        ) {
            ?>
            <script>
            window.location.replace("<?php echo esc_url(home_url()); ?>");
            </script>
            <?php
        }
    }
  }
}
add_action( 'wp_print_footer_scripts', 'ee_add_redirect_expired_events', 20 );