gistfile1.txt

class TwentyTwenty_Enquiry_Handler {
	
	private static $instance;

	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	private function __construct() {
		add_filter( 'pisol_eqw_form_fields', array( $this, 'filter_form_fields' ) );
		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
	}

	public function filter_form_fields( $fields ) {
		$products = PISOL\ENQ\FRONT\Enquiry_Cart::getProductsInEnquirySession();
		$present = ! empty( $products );
		foreach ( $products as $product ) {
			$product_id = $product['id'];
			if ( ! has_term( 'isCloth', 'product_tag', $product_id ) ) {
				$present = false;
				break;
			}
		}

		if ( !$present ) {
			foreach ( $fields as $key => $field ) {
				if ( $field['type'] == 'dropdown' && $field['name'] == 'lieferservice' ) {
					$fields[ $key ]['options'] = array( '0' => 'Ja, bitte bieten Sie auch die Anlieferung und Abholung mit an' );
				}
			}
		}
		return $fields;
	}

	public function enqueue_scripts() {
		$js = '
			jQuery(document).ready(function($){
				jQuery(document).on("pisol_enquiry_product_removed", function(e, product_id){
					location.reload();
				});
			});
		';
		wp_add_inline_script( 'jquery', $js );
	}
}

TwentyTwenty_Enquiry_Handler::get_instance();