functions.php

<?php

if ( class_exists( 'Segment_Cookie' ) ) {

  add_action( 'wp_insert_comment', 'gcy_segment_insert_comment', 10, 2 );
  function gcy_segment_insert_comment( $id, $comment ) {
    $commenter = wp_get_current_commenter();

    if ( ! array_filter( $commenter ) ) {
      $commenter = [
          'comment_author'       => $comment->comment_author,
          'comment_author_email' => $comment->comment_author_email,
          'comment_author_url'   => $comment->comment_author_url,
      ];
    }

    Segment_Cookie::set_cookie( 'left_comment', json_encode( $commenter ) );
  }

  add_action( 'transition_post_status', 'gcy_segment_insert_post', 10, 3 );
  function gcy_segment_insert_post( $new, $old, $post ) {
    if ( $old == 'auto-draft' ) {
      $post_type = 'updates';

      if ( $post->post_status == 'auto-draft' ) {
        return;
      }

      if ( wp_is_post_revision( $post->ID ) || wp_is_post_autosave( $post->ID ) ) {
        return;
      }

      if ( $post->post_type != $post_type ) {
        return;
      }

      Segment_Cookie::set_cookie( 'insert_post', json_encode( $post->ID ) );
    }
  }

  add_filter( 'segment_get_current_page_track', 'gcy_segment_track_events', 10, 3 );
  function gcy_segment_track_events( $track, $settings, $this ) {
    if ( $settings['track_comments'] ) {
      if ( Segment_Cookie::get_cookie( 'left_comment' ) ) {
        $commenter = json_decode( stripslashes( Segment_Cookie::get_cookie( 'left_comment' ) ), true );

        $track = array(
            'event'      => __( 'Commented', 'segment' ),
            'properties' => array(
                'author' => $commenter['comment_author'],
                'email'  => $commenter['comment_author_email'],
                'url'    => $commenter['comment_author_url'],
            ),
            'http_event' => 'left_comment'
        );
      }
    }

    if ( Segment_Cookie::get_cookie( 'insert_post' ) ) {
      $post_id = json_decode( stripslashes( Segment_Cookie::get_cookie( 'insert_post' ) ), true );
      $post = get_post( $post_id );

      if ( $post ) {
        $categories = implode( ', ', wp_list_pluck( get_the_category( $post->ID ), 'name' ) );

        $track = [
            'event'      => 'Post Submitted',
            'properties' => [
                'title'    => $post->post_title,
                'category' => $categories,
                'status'   => $post->post_status,
            ],
            'http_event' => 'insert_post'
        ];
      }
    }

    if ( $track ) {
      $track['properties']['noninteraction'] = true;
      $track['properties'] = array_filter( $track['properties'] );
    }

    return $track;
  }
}