<?php

// Runs on any post with post type "event" and updates the "Event" custom object with values Title and EventDate

function create_update_event_object( $post_id, $post, $update ) {

    if ( $post->post_type != 'event' || ! function_exists( 'wp_fusion' ) ) {
        return;
    }

    add_filter( 'wpf_crm_object_type', function() {
        return 10011;
    } );

    $event_data = array(
        'Title'     => $post->post_title,
        'EventDate' => get_post_meta( $post_id, 'event_date', true )
    );

    if ( $update == false ) {

        // New event

        $object_id = wp_fusion()->crm->add_contact( $event_data, false );

        if ( ! is_wp_error( $object_id ) ) {
            update_post_meta( $post_id, wp_fusion()->crm->slug . '_event_id', $object_id );
        }

    } else {

        // Existing event

        $object_id = get_post_meta( $post_id, wp_fusion()->crm->slug . '_event_id', true );

        wp_fusion()->crm->update_contact( $object_id, $event_data, false );

    }

}

add_action( 'wp_insert_post', 'create_update_event_object', 10, 3 );