class FontWeight

class FontWeight extends DesignTokenValuePluginBase {
  
  /**
   * The font weight value.
   */
  protected int $value;
  
  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() : array {
    return [
      // 0 is not an authorized value, this forces to set an authorized value.
'value' => 0,
    ] + parent::defaultConfiguration();
  }
  
  /**
   * {@inheritdoc}
   */
  public function setConfiguration(array $configuration) : static {
    parent::setConfiguration($configuration);
    if ($this->configuration['value'] instanceof FontWeightAlias) {
      $this->value = $this->configuration['value']
        ->value();
      return $this;
    }
    if (is_string($this->configuration['value'])) {
      $this->value = FontWeightAlias::from($this->configuration['value'])
        ->value();
      return $this;
    }
    $this->value = (int) $this->configuration['value'];
    return $this;
  }
  
  /**
   * {@inheritdoc}
   */
  public function toDtcg() : mixed {
    return $this->value;
  }
  
  /**
   * {@inheritdoc}
   */
  public function toCss() : string {
    return (string) $this->value;
  }

}