Results

      '#title' => $this->t('Negate'),
      '#description' => $this->t('If checked, the value(s) selected should not match.'),
      '#default_value' => $this->configuration['negate'],
    ];

    return $form;
  }

  /**

    $values = $form_state->getValue($form['#parents']);
    $this->configuration['zones'] = $values['zones'];
    $this->configuration['negate'] = $values['negate'];
  }

  /**
   * Helper to evaluate match of address against multiple zones.
   *
   * @param \Drupal\address\Plugin\Field\FieldType\AddressItem $address

    $negate_condition = (bool) $this->configuration['negate'];

    /** @var \Drupal\commerce_zones\Entity\ZoneInterface[] $commerce_zones */
    $commerce_zones = $this->zoneStorage->loadMultiple($zone_ids);

    foreach ($commerce_zones as $commerce_zone) {
      $match = $commerce_zone->match($address);

    if (!empty($countIncluded)) {
      $summary .= $this->t('Pages included for visibility: @count', [
        '@count' => empty($this->configuration['negate']) ? $countIncluded : $countExcluded,
      ]);
    }

    if (!empty($countExcluded)) {
      $summary .= empty($summary) ? '' : '<br />';
      $summary .= $this->t('Pages excluded for visibility: @count', [

      $summary .= empty($summary) ? '' : '<br />';
      $summary .= $this->t('Pages excluded for visibility: @count', [
        '@count' => empty($this->configuration['negate']) ? $countExcluded : $countIncluded,
      ]);
    }

    return $summary;
  }

    $parameters = $this->getNeededParameters();
    $parameters = implode(', ', $parameters);
    if (!empty($this->configuration['negate'])) {
      return $this->t('Do not return true if the current request does not have @mode parameters: @parameters.', [
        '@mode' => $this->configuration['all'] ? $this->t('all') : $this->t('any of the'),
        '@parameters' => $parameters,
      ]);
    }
    return $this->t('Return true if the current request has @mode parameters: @parameters.', [

    $parameters = $this->getNeededParameters();
    $parameters = implode(', ', $parameters);
    if (!empty($this->configuration['negate'])) {
      return $this->t('Do not return true if the current request does not have @mode parameters: @parameters.', [
        '@mode' => $this->configuration['all'] ? $this->t('all') : $this->t('any of the'),
        '@parameters' => $parameters,
      ]);
    }
    return $this->t('Return true if the current request has @mode parameters: @parameters.', [

      return $this->t('@comparison production variation @variations or @last.',
        [
          '@comparison' => (empty($this->configuration['negate'])) ? $this->t('Has') : $this->t('Has not'),
          '@variations' => $variations,
          '@last' => $last,
        ]
      );
    }
    $variations = reset($this->configuration['product_variations']);

    return $this->t('@comparison production variation @variations.',
      [
        '@comparison' => (empty($this->configuration['negate'])) ? $this->t('Has') : $this->t('Has not'),
        '@variations' => $variations,
      ]
    );
  }

  /**

      return $this->t('The order bundle @comparison @bundles or @last',
        [
          '@comparison' => (empty($this->configuration['negate'])) ? $this->t('is') : $this->t('is not'),
          '@bundles' => $bundles,
          '@last' => $last,
        ]
      );
    }
    $bundle = reset($this->configuration['bundles']);

    return $this->t('The order bundle @comparison @bundle',
      [
        '@comparison' => (empty($this->configuration['negate'])) ? $this->t('is') : $this->t('is not'),
        '@bundle' => $bundle,
      ]
    );
  }

  /**

    $params = array_map('trim', explode("\n", $this->configuration['request_param']));
    $params = implode(', ', $params);
    if (!empty($this->configuration['negate'])) {
      return $this->t('Do not return true on the following query parameters: @params', ['@params' => $params]);
    }
    return $this->t('Return true on the following query parameters: @params', ['@params' => $params]);
  }

  /**

    $this->configuration['view_inclusion'] = array_filter($form_state->getValue('views_pages'));
    // Defaults negation to FALSE to match the defaultConfiguration.
    $this->configuration['negate'] = FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function summary() {

    $domains = array_map('trim', explode("\n", $this->configuration['domains']));
    $domains = implode(', ', $domains);
    if (!empty($this->configuration['negate'])) {
      return $this->t('Do not return true on the following domains: @domains', ['@domains' => $domains]);
    }
    return $this->t('Return true on the following domains: @domains', ['@domains' => $domains]);
  }

  /**

    parent::submitConfigurationForm($form, $form_state);
    // Defaults negation to TRUE.
    $this->configuration['negate'] = TRUE;
  }

  /**
   * {@inheritdoc}
   */
  public function evaluate() {

  public function evaluate() {
    // As a failsafe, ensure it's always set to negate before evaluating.
    $this->configuration['negate'] = TRUE;
    // Allow this to pass through gracefully when blank.
    $pages = mb_strtolower($this->configuration['pages']);
    if (!$pages) {
      return FALSE;
    }

    $pages = array_map('trim', explode("\n", $this->configuration['pages']));
    $pages = implode(', ', $pages);
    if (!empty($this->configuration['negate'])) {
      return $this->t('Do not return true on the following pages: @pages', ['@pages' => $pages]);
    }
    return $this->t('Return true on the following pages: @pages', ['@pages' => $pages]);
  }

  /**

   */
  public function summary() {
    if (!empty($this->configuration['negate'])) {
      return $this->t('The cookie @cookie_id is not @cookie_value.', [
        '@cookie_id' => $this->configuration['cookie_id'],
        '@cookie_value' => $this->configuration['cookie_value'],
      ]);
    }
    return $this->t('The cookie @cookie_id is @cookie_value.', [

   */
  public function isNegated(): bool {
    return $this->configuration['negate'] ?? FALSE;
  }

  /**
   * Reverse the boolean result, if plugin configuration has negation turned on.
   *
   * @param bool $result

      '#type' => 'checkbox',
      '#title' => $this->t('Negate the condition'),
      '#default_value' => $this->configuration['negate'],
      '#description' => $this->t('Negates the condition. Makes TRUE to FALSE and vice versa.'),
      '#weight' => $i,
    ];
    /** @var \Drupal\Core\Plugin\Context\ContextDefinition $definition */
    foreach ($this->getPluginDefinition()['context_definitions'] ?? [] as $key => $definition) {
      $i++;

   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state): void {
    $this->configuration['negate'] = (bool) $form_state->getValue('negate', FALSE);
    foreach ($this->getPluginDefinition()['context_definitions'] ?? [] as $key => $definition) {
      $this->configuration[$key] = $form_state->getValue($key);
    }
    if ($form_state->hasValue('context_mapping')) {
      $this->setContextMapping($form_state->getValue('context_mapping'));
    }

        $target_value = NULL;
        $negated = $this->isNegated();
        $this->configuration['negate'] = FALSE;
        foreach ($field_values as $field_value) {
          $this->targetValue = $field_value;
          if ($this->evaluate()) {
            $target_value = $field_value;
            break;
          }

        $this->targetValue = NULL;
        $this->configuration['negate'] = $negated;
    }
    return $target_value;
  }

  /**
   * Get a list of field values to evaluate against.

      $matched_val = NULL;
      $negated = $this->isNegated();
      $this->configuration['negate'] = FALSE;
      array_walk_recursive($value, function ($v, $k) use (&$first_val, &$matched_val) {
        // This check includes a considering of integer 0 as unchecked checkbox.
        // @see \Drupal\Core\Render\Element\Checkboxes::getCheckedCheckboxes()
        if (is_scalar($v) && ($v !== 0) && trim((string) $v) !== '') {
          if (!isset($first_val)) {
            $first_val = $v;

      });
      $this->expectedValue = NULL;
      $this->configuration['negate'] = $negated;
      $value = $matched_val ?? $first_val;
    }

    // Restoring the original config entry.
    $this->configuration['field_name'] = $original_field_name;

      '#type' => 'checkbox',
      '#title' => $this->t('Negate'),
      '#default_value' => $this->configuration['negate'],
    ];

    $form['conjunction'] = [
      '#type' => 'select',
      '#title' => $this->t('Conjunction'),
      '#options' => [

    return $result xor $this->configuration['negate'];
  }

}

        0 => $this->t('Restrict access to the specified pages'),
      ],
      '#default_value' => $this->configuration['negate'],
    ];

    return parent::buildConfigurationForm($form, $form_state);
  }

  /**

    // Attempt to match on internal path.
    if ($this->pathMatcher->matchPath($path, $this->configuration['pages'])) {
      return (bool) $this->configuration['negate'];
    }

    // Attempt to match on alias.
    $path_alias = mb_strtolower($this->aliasManager->getAliasByPath($path));
    return $this->pathMatcher->matchPath($path_alias, $this->configuration['pages']) == $this->configuration['negate'];
  }

}

    return $this->t('@state true if current page is a child of a microsite for the @field field.', [
      '@field' => $options[$this->configuration['field']],
      '@state' => empty($this->configuration['negate']) ? $this->t('Return') : $this->t('Do not return'),
    ]);
  }

}

    // Handle negation.
    if (!empty($this->configuration['negate'])) {
      if ($condition === '<') {
        return $this->t('The value is not less than @threshold.', ['@threshold' => $threshold]);
      }
      else {
        return $this->t('The value is not greater than @threshold.', ['@threshold' => $threshold]);
      }

      $features = reset($features);
    }
    if (!empty($this->configuration['negate'])) {
      return $this->t('One of these features @features are not enabled', ['@features' => $features]);
    }
    else {
      return $this->t('One of these features @features are enabled', ['@features' => $features]);
    }
  }