Use address from PayPal as preset in checkout PCP-28

modules.local/ppcp-wc-gateway/services.php

@@ -9,6 +9,7 @@ use Inpsyde\PayPalCommerce\ApiClient\Entity\ApplicationContext;
 use Inpsyde\PayPalCommerce\Onboarding\State;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\OrderTablePaymentStatusColumn;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\PaymentStatusOrderDetail;
+use Inpsyde\PayPalCommerce\WcGateway\Checkout\CheckoutPayPalAddressPreset;
 use Inpsyde\PayPalCommerce\WcGateway\Checkout\DisableGateways;
 use Inpsyde\PayPalCommerce\WcGateway\Gateway\WcGateway;
 use Inpsyde\PayPalCommerce\WcGateway\Notice\AuthorizeOrderActionNotice;
@@ -544,4 +545,11 @@ return [
             ],
         ];
     },
+
+    'wcgateway.checkout.address-preset' => static function(ContainerInterface $container): CheckoutPayPalAddressPreset {
+
+        return new CheckoutPayPalAddressPreset(
+            $container->get('session.handler')
+        );
+    },
 ];

modules.local/ppcp-wc-gateway/src/Checkout/CheckoutPayPalAddressPreset.php

@@ -0,0 +1,114 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Checkout;
+
+use Inpsyde\PayPalCommerce\ApiClient\Entity\Shipping;
+use Inpsyde\PayPalCommerce\Session\SessionHandler;
+
+/**
+ * Service that fills checkout address fields
+ * with address selected via PayPal
+ */
+class CheckoutPayPalAddressPreset
+{
+
+    private $shippingCache = [];
+
+    /**
+     * @var SessionHandler
+     */
+    private $sessionHandler;
+
+    /**
+     * @param SessionHandler $sessionHandler
+     */
+    public function __construct(SessionHandler $sessionHandler)
+    {
+        $this->sessionHandler = $sessionHandler;
+    }
+
+    /**
+     * @wp-hook woocommerce_checkout_get_value
+     * @param string|null
+     * @param string $fieldId
+     *
+     * @return string|null
+     */
+    public function filterCheckoutFiled($defaultValue, $fieldId): ?string
+    {
+        if(! is_string($defaultValue)) {
+            $defaultValue = null;
+        }
+
+        if(!is_string($fieldId)) {
+            return $defaultValue;
+        }
+
+        return $this->readPresetForField($fieldId) ?? $defaultValue;
+    }
+
+    private function readPresetForField(string $fieldId): ?string
+    {
+        if(!$order = $this->sessionHandler->order()) {
+            return null;
+        }
+
+        $shipping = $this->readShippingFromOrder();
+        $payer = $order->payer();
+
+        $addressMap = [
+            'billing_address_1' => 'addressLine1',
+            'billing_address_2' => 'addressLine2',
+            'billing_postcode' => 'postalCode',
+            'billing_country' => 'countryCode',
+            'billing_city' => 'adminArea2',
+            'billing_state' => 'adminArea1'
+        ];
+        $payerNameMap = [
+            'billing_last_name' => 'surname',
+            'billing_first_name' => 'givenName',
+        ];
+        $payerMap = [
+            'billing_email' => 'emailAddress',
+            'billing_phone' => 'phone',
+        ];
+
+        if(array_key_exists($fieldId, $addressMap) && $shipping) {
+            return $shipping->address()->{$addressMap[$fieldId]}() ?: null;
+        }
+
+        if(array_key_exists($fieldId, $payerNameMap) && $payer) {
+            return $payer->name()->{$payerNameMap[$fieldId]}() ?: null;
+        }
+
+        if(array_key_exists($fieldId, $payerMap) && $payer) {
+            return $payer->{$payerMap[$fieldId]}() ?: null;
+        }
+
+        return null;
+    }
+
+    private function readShippingFromOrder(): ?Shipping
+    {
+        if(!$order = $this->sessionHandler->order()) {
+            return null;
+        }
+
+        if(array_key_exists($order->id(), $this->shippingCache)) {
+            return $this->shippingCache[$order->id()];
+        }
+
+        $shipping = null;
+        foreach($this->sessionHandler->order()->purchaseUnits() as $unit) {
+            if($shipping = $unit->shipping()) {
+                break;
+            }
+        }
+
+        $this->shippingCache[$order->id()] = $shipping;
+
+        return $shipping;
+    }
+}

modules.local/ppcp-wc-gateway/src/WcGatewayModule.php

@@ -10,9 +10,9 @@ use Inpsyde\PayPalCommerce\AdminNotices\Repository\Repository;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\OrderDetail;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\OrderTablePaymentStatusColumn;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\PaymentStatusOrderDetail;
+use Inpsyde\PayPalCommerce\WcGateway\Checkout\CheckoutPayPalAddressPreset;
 use Inpsyde\PayPalCommerce\WcGateway\Checkout\DisableGateways;
 use Inpsyde\PayPalCommerce\WcGateway\Gateway\WcGateway;
-use Inpsyde\PayPalCommerce\WcGateway\Notice\AuthorizeOrderActionNotice;
 use Inpsyde\PayPalCommerce\WcGateway\Notice\ConnectAdminNotice;
 use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
 use Inpsyde\PayPalCommerce\WcGateway\Settings\SettingsRenderer;
@@ -34,6 +34,7 @@ class WcGatewayModule implements ModuleInterface
         $this->registerPaymentGateway($container);
         $this->registerOrderFunctionality($container);
         $this->registerColumns($container);
+        $this->registerCheckoutAddressPreset($container);
 
         add_filter(
             Repository::NOTICES_FILTER,
@@ -212,4 +213,21 @@ class WcGatewayModule implements ModuleInterface
             2
         );
     }
+
+    private function registerCheckoutAddressPreset(ContainerInterface $container): void
+    {
+        add_filter(
+            'woocommerce_checkout_get_value',
+            static function (...$args) use ($container) {
+                // It's important to not instantiate the service to early
+                // as it depends on SessionHandler and WooCommerce Session
+                /* @var CheckoutPayPalAddressPreset $service */
+                $service = $container->get('wcgateway.checkout.address-preset');
+
+                return $service->filterCheckoutFiled(...$args);
+            },
+            10,
+            2
+        );
+    }
 }