WWPP – Show retail reference price including tax for specific wholesale roles only

  // Show retail reference price including tax for specific wholesale roles only

  // Requires: WWPP Settings > Tax > "Tax Display on Wholesale Price" = "Excluding Tax"

  add_filter( 'wwp_product_original_price', function( $price_html, $wholesale_price,

  $product_price, $product, $user_wholesale_role ) {

      $target_roles = array( 'wholesale_vip' ); // Replace this with your own custom wholesale role IDs

      if ( empty( $user_wholesale_role ) || ! ( $product instanceof WC_Product ) ) {

          return $price_html;

      }

      if ( empty( array_intersect( $user_wholesale_role, $target_roles ) ) ) {

          return $price_html;

      }

      $tax_label = WC()->countries->inc_tax_or_vat();

      if ( $product->is_type( 'variable' ) ) {

          $incl_tax_prices = array();

          foreach ( $product->get_children() as $child_id ) {

              $variation = wc_get_product( $child_id );

              if ( ! $variation || ! $variation->is_visible() ) {

                  continue;

              }

              $regular_price = $variation->get_regular_price();

              if ( '' === $regular_price ) {

                  continue;

              }

              $incl_tax_prices[] = (float) wc_get_price_including_tax( $variation, array(

  'price' => (float) $regular_price ) );

          }

          if ( empty( $incl_tax_prices ) ) {

              return $price_html;

          }

          $min       = min( $incl_tax_prices );

          $max       = max( $incl_tax_prices );

          $formatted = ( $min !== $max ) ? wc_format_price_range( $min, $max ) : wc_price(

  $min );

      } else {

          $regular_price = $product->get_regular_price();

          $price_incl_tax = (float) wc_get_price_including_tax( $product, array( 'price' =>

  (float) $regular_price ) );

          $formatted      = wc_price( $price_incl_tax );

      }

      return '<del class="original-computed-price">'

          . $formatted

          . ' <small class="woocommerce-price-suffix">' . esc_html( $tax_label ) . '</small>'

          . '</del>';

  }, 20, 5 );