Next Event Shortcode

I noticed a lot of people asking this question and no easy solution, so after completing this I figured I’d post it up for everyone. This pretty much functions the same way as the native [event] shortcode except for the fact that instead of looking for an event by ID, it simply pulls the next event. I’ll probably further expand on this with filtering, but for now, here we go:

<?php
/**
 * Shows the next event according to given specifications. Accepts any event query attribute.
 * @param array $atts
 * @return string
 */
function em_get_next_event_shortcode($atts, $format='') {
    global $EM_Event, $post;

    // Get the first event in the list
    $events = EM_Events::get( array('limit'=>1) ); // It's an array at this point

    // Make sure we got something
    if( !empty($events) ) {
        // Now set the global
        $EM_Event = $events[0];
    }            

    // Now continue just like the originaL
    $return = '';
    $the_event = is_object($EM_Event) ? clone($EM_Event):null; //save global temporarily
    $atts = (array) $atts;
    $atts['format'] = ($format != '' || empty($atts['format'])) ? $format : $atts['format'];
    $atts['format'] = html_entity_decode($atts['format']); //shorcode doesn't accept html
    if( !empty($atts['event']) && is_numeric($atts['event']) ){
        $EM_Event = em_get_event($atts['event']);
        $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
    }elseif( !empty($atts['post_id']) && is_numeric($atts['post_id']) ){
        $EM_Event = em_get_event($atts['post_id'], 'post_id');
        $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
    }
    //no specific event or post id supplied, check globals
    if( !empty($EM_Event) ){
        $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
    }elseif( $post->post_type == EM_POST_TYPE_EVENT ){
        $EM_Event = em_get_event($post->ID, 'post_id');
        $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
    }
    $EM_Event = is_object($the_event) ? $the_event:$EM_Event; //reset global
    return $return;
}
add_shortcode ( 'next_event', 'em_get_next_event_shortcode' );
?>

https://www.ads-software.com/plugins/events-manager/