Integrate the Vertex app

<?php

namespace Pyz\Zed\{YourDesiredModule}\Communication\Plugin\Order;

use Generated\Shared\Transfer\OrderTransfer;
use Spryker\Zed\Kernel\Communication\AbstractPlugin;
use Spryker\Zed\TaxAppExtension\Dependency\Plugin\OrderTaxAppExpanderPluginInterface;

class OrderCustomerWithVertexCodeExpanderPlugin extends AbstractPlugin implements OrderTaxAppExpanderPluginInterface
{
    /**
     * @param \Generated\Shared\Transfer\OrderTransfer $orderTransfer
     *
     * @return \Generated\Shared\Transfer\OrderTransfer
     */
    public function expand(OrderTransfer $orderTransfer): OrderTransfer
    {
        $orderTransfer->getTaxMetadata()->setCustomer(['customerCode' => ['classCode' => 'vertex-customer-code']]);

        return $orderTransfer;
    }
}

<?php

namespace Spryker\Zed\{YourDesiredModule}\Communication\Plugin\Quote;

use Generated\Shared\Transfer\CalculableObjectTransfer;
use Spryker\Zed\Kernel\Communication\AbstractPlugin;
use Spryker\Zed\TaxAppExtension\Dependency\Plugin\CalculableObjectTaxAppExpanderPluginInterface;

class CalculableObjectCustomerWithVertexCodeExpanderPlugin extends AbstractPlugin implements CalculableObjectTaxAppExpanderPluginInterface
{
    /**
     * @param \Generated\Shared\Transfer\CalculableObjectTransfer $calculableObjectTransfer
     *
     * @return \Generated\Shared\Transfer\CalculableObjectTransfer
     */
    public function expand(CalculableObjectTransfer $calculableObjectTransfer): CalculableObjectTransfer
    {
        $calculableObjectTransfer->getTaxMetadata()->setCustomer(['customerCode' => ['classCode' => 'vertex-customer-code']]);

        return $calculableObjectTransfer;
    }
}

// ...
class OrderCustomerWithVertexExemptionCertificateExpanderPlugin extends AbstractPlugin implements CalculableObjectTaxAppExpanderPluginInterface
{
    /**
     * @param \Generated\Shared\Transfer\CalculableObjectTransfer $calculableObjectTransfer
     *
     * @return \Generated\Shared\Transfer\CalculableObjectTransfer
     */
    public function expand(CalculableObjectTransfer $calculableObjectTransfer): CalculableObjectTransfer
    {
        $calculableObjectTransfer->getTaxMetadata()->setCustomer(['exemptionCertificate' => ['exemptionCertificateNumber' => 'vertex-exemption-certificate-number']]);

        return $calculableObjectTransfer;
    }
}

// ...
class ItemWithVertexClassCodeExpanderPlugin extends AbstractPlugin implements CalculableObjectTaxAppExpanderPluginInterface
{
    /**
     * @param \Generated\Shared\Transfer\CalculableObjectTransfer $calculableObjectTransfer
     *
     * @return \Generated\Shared\Transfer\CalculableObjectTransfer
     */
    public function expand(CalculableObjectTransfer $calculableObjectTransfer): CalculableObjectTransfer
    {
        foreach ($calculableObjectTransfer->getItems() as $itemTransfer) {
            $itemTransfer->getTaxMetadata()->setProduct(['productClass' => 'vertex-product-class-code']);
        }

        return $calculableObjectTransfer;
    }
}

class ItemWithFlexibleFieldsExpanderPlugin extends AbstractPlugin implements CalculableObjectTaxAppExpanderPluginInterface
{
    // ...

    /**
     * @param \CalculableObjectTransfer $calculableObjectTransfer
     *
     * @return \CalculableObjectTransfer
     */
    public function expand(CalculableObjectTransfer $calculableObjectTransfer): CalculableObjectTransfer
    {
        foreach ($calculableObjectTransfer->getItems() as $itemTransfer) {
            $itemTransfer
                ->getTaxMetadata()
                ->setFlexibleFields(
                    [
                        'flexibleCodeFields' => [
                            [
                                'fieldId' => 1,
                                'value' => 'vertex-flexible-code-value',
                            ],
                        ],
                    ],
                );
        }

        return $calculableObjectTransfer;
    }
}

namespace Pyz\Zed\TaxApp;

// The following plugins are for Marketplace only.
use Spryker\Zed\MerchantProfile\Communication\Plugin\TaxApp\MerchantProfileAddressCalculableObjectTaxAppExpanderPlugin;
use Spryker\Zed\MerchantProfile\Communication\Plugin\TaxApp\MerchantProfileAddressOrderTaxAppExpanderPlugin;
use Spryker\Zed\ProductOfferAvailability\Communication\Plugin\TaxApp\ProductOfferAvailabilityCalculableObjectTaxAppExpanderPlugin;
use Spryker\Zed\ProductOfferAvailability\Communication\Plugin\TaxApp\ProductOfferAvailabilityOrderTaxAppExpanderPlugin;

class TaxAppDependencyProvider extends SprykerTaxAppDependencyProvider
{
    /**
     * @return array<\Spryker\Zed\TaxAppExtension\Dependency\Plugin\CalculableObjectTaxAppExpanderPluginInterface>
     */
    protected function getCalculableObjectTaxAppExpanderPlugins(): array
    {
        return [       
            # This plugin stack is responsible for expansion of CalculableObjectTransfer based on present fields. Add your custom implemented expander plugins here following the example in `spryker/tax-app-vertex` module.

            // The following plugins are for Marketplace only.
            # This plugin is expanding CalculableObjectTransfer object with merchant address information.
            new MerchantProfileAddressCalculableObjectTaxAppExpanderPlugin(),
            # This plugin is expanding CalculableObjectTransfer object with product offer availability information.
            new ProductOfferAvailabilityCalculableObjectTaxAppExpanderPlugin(),
        ];
    }

    /**
     * @return array<\Spryker\Zed\TaxAppExtension\Dependency\Plugin\OrderTaxAppExpanderPluginInterface>
     */
    protected function getOrderTaxAppExpanderPlugins(): array
    {
        return [
            # This plugin stack is responsible for expansion of OrderTransfer based on present fields. Add your custom implemented expander plugins here following the example in `spryker/tax-app-vertex` module.

            // The following plugins are for Marketplace only.
            # This plugin is expanding OrderTransfer object with merchant address information.
            new MerchantProfileAddressOrderTaxAppExpanderPlugin(),
            # This plugin is expanding OrderTransfer object with product offer availability information.
            new ProductOfferAvailabilityOrderTaxAppExpanderPlugin(),
        ];
    }
}

namespace Pyz\Zed\ProductOfferStock;

use Spryker\Zed\ProductOfferStock\ProductOfferStockDependencyProvider as SprykerProductOfferStockDependencyProvider;
use Spryker\Zed\StockAddress\Communication\Plugin\Stock\StockAddressStockTransferProductOfferStockExpanderPlugin;

class ProductOfferStockDependencyProvider extends SprykerProductOfferStockDependencyProvider
{
    /**
     * @return array<\Spryker\Zed\ProductOfferStockExtension\Dependency\Plugin\StockTransferProductOfferStockExpanderPluginInterface>
     */
    protected function getStockTransferExpanderPluginCollection(): array
    {
        return [
            # This plugin is providing warehouse address to StockTransfer objects which is used during tax calculation.
            new StockAddressStockTransferProductOfferStockExpanderPlugin(),
        ];
    }
}

namespace Pyz\Zed\TaxApp;

use Spryker\Zed\TaxApp\TaxAppConfig as SprykerTaxAppConfig;

class TaxAppConfig extends SprykerTaxAppConfig
{

    public function getSellerCountryCode(): string
    {
        return 'FR';
    }

    public function getCustomerCountryCode(): string
    {
        return 'DE';
    }
}