WC Product Bundle Integration Fix for MOQ incorrectly enforced on product bundle child items

  /**

   * Fix 1: Product page — prevent WWPP from overriding the quantity input args for

   * WC Product Bundle child items.

   *

   * WC Product Bundles names bundled item quantity fields 'bundle_quantity_{id}'.

   * We capture WC PB's intended args at priority 10 (before WWPP's priority 11)

   * and restore them at priority 12.

   */

  class WWPP_Bundle_Product_Page_Fix {

      private static $bundled_item_args = null;

      public static function capture( $args, $product ) {

          if ( isset( $args['input_name'] ) && false !== strpos( $args['input_name'], 'bundle_quantity_' ) ) {

              self::$bundled_item_args = $args;

          }

          return $args;

      }

      public static function restore( $args, $product ) {

          if ( null !== self::$bundled_item_args ) {

              $args = self::$bundled_item_args;

              self::$bundled_item_args = null;

          }

          return $args;

      }

  }

  add_filter( 'woocommerce_quantity_input_args', array( 'WWPP_Bundle_Product_Page_Fix', 'capture' ), 10, 2 );

  add_filter( 'woocommerce_quantity_input_args', array( 'WWPP_Bundle_Product_Page_Fix', 'restore' ), 12, 2 );

  /**

   * Fix 2: Cart page — prevent WWPP from forcing bundled child item quantities up

   * to the product-level MOQ.

   *

   * WWPP's set_cart_item_quantity() runs at priority 10. We snapshot bundled child

   * quantities at priority 9 and restore them at priority 11.

   */

  class WWPP_Bundle_Cart_Fix {

      private static $bundled_qtys = array();

      public static function capture( $cart ) {

          if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;

          self::$bundled_qtys = array();

          foreach ( $cart->get_cart() as $key => $item ) {

              if ( ! empty( $item['bundled_by'] ) ) {

                  self::$bundled_qtys[ $key ] = $item['quantity'];

              }

          }

      }

      public static function restore( $cart ) {

          if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;

          foreach ( self::$bundled_qtys as $key => $qty ) {

              if ( isset( $cart->cart_contents[ $key ] ) ) {

                  $cart->cart_contents[ $key ]['quantity'] = $qty;

              }

          }

          self::$bundled_qtys = array();

      }

  }

  add_action( 'woocommerce_before_calculate_totals', array( 'WWPP_Bundle_Cart_Fix', 'capture' ), 9 );

  add_action( 'woocommerce_before_calculate_totals', array( 'WWPP_Bundle_Cart_Fix', 'restore' ), 11 );