Strips closures from AI Engine reply payloads to avoid serialization fatals on custom autoloaders.

mwai-safe-serialize.php

 <?php
/**
 * Plugin Name: AI Engine Safe Serialize Guard
 * Description: Strips closures from AI Engine reply payloads to avoid serialization fatals on custom autoloaders.
 */

function mwai_safe_normalize_closures( $value, $ctx = 'v', $depth = 0 ) {
  if ( $depth > 10 ) {
    return "[{$ctx}:max-depth]";
  }
  if ( $value instanceof \Closure ) {
    return "[{$ctx}:closure]";
  }
  if ( is_array( $value ) ) {
    foreach ( $value as $k => $v ) {
      $value[ $k ] = mwai_safe_normalize_closures( $v, "{$ctx}.{$k}", $depth + 1 );
    }
    return $value;
  }
  if ( is_object( $value ) ) {
    foreach ( get_object_vars( $value ) as $prop => $v ) {
      $value->$prop = mwai_safe_normalize_closures( $v, "{$ctx}.{$prop}", $depth + 1 );
    }
    return $value;
  }
  return $value;
}

// Sanitize feedback payloads before AI Engine serializes them.
add_filter( 'mwai_ai_reply', function( $reply ) {
  if ( !empty( $reply->needFeedbacks ) ) {
    foreach ( $reply->needFeedbacks as $i => $nf ) {
      if ( isset( $nf['rawMessage'] ) ) {
        $reply->needFeedbacks[ $i ]['rawMessage'] = mwai_safe_normalize_closures( $nf['rawMessage'], 'rawMessage' );
      }
    }
  }
  return $reply;
}, 1 );