code styles for the wc gateway module

modules.local/ppcp-button/src/Helper/EarlyOrderHandler.php

@@ -108,6 +108,6 @@ class EarlyOrderHandler {
 		/**
 		 * Patch Order so we have the \WC_Order id added.
 		 */
-		return $this->orderProcessor->patchOrder( $wcOrder, $order );
+		return $this->orderProcessor->patch_order( $wcOrder, $order );
 	}
 }

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

@@ -1,4 +1,9 @@
 <?php
+/**
+ * The extensions of the gateway module.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway
+ */
 
 declare(strict_types=1);
 
@@ -12,72 +17,76 @@ use Inpsyde\Woocommerce\Logging\Logger\WooCommerceLogger;
 use Psr\Container\ContainerInterface;
 use Psr\Log\LoggerInterface;
 
-return [
+return array(
 
-    'api.merchant_email' => static function (ContainerInterface $container): string {
+	'api.merchant_email'             => static function ( ContainerInterface $container ): string {
-        $settings = $container->get('wcgateway.settings');
+		$settings = $container->get( 'wcgateway.settings' );
-        return $settings->has('merchant_email') ? (string) $settings->get('merchant_email') : '';
+		return $settings->has( 'merchant_email' ) ? (string) $settings->get( 'merchant_email' ) : '';
-    },
+	},
-    'api.merchant_id' => static function (ContainerInterface $container): string {
+	'api.merchant_id'                => static function ( ContainerInterface $container ): string {
-        $settings = $container->get('wcgateway.settings');
+		$settings = $container->get( 'wcgateway.settings' );
-        return $settings->has('merchant_id') ? (string) $settings->get('merchant_id') : '';
+		return $settings->has( 'merchant_id' ) ? (string) $settings->get( 'merchant_id' ) : '';
-    },
+	},
-    'api.partner_merchant_id' => static function (): string {
+	'api.partner_merchant_id'        => static function (): string {
-        // ToDo: Replace with the real merchant id of platform
+		// @ToDo: Replace with the real merchant id of platform
-        return 'KQ8FCM66JFGDL';
+		return 'KQ8FCM66JFGDL';
-    },
+	},
-    'api.key' => static function (ContainerInterface $container): string {
+	'api.key'                        => static function ( ContainerInterface $container ): string {
-        $settings = $container->get('wcgateway.settings');
+		$settings = $container->get( 'wcgateway.settings' );
-        $key = $settings->has('client_id') ? (string) $settings->get('client_id') : '';
+		$key      = $settings->has( 'client_id' ) ? (string) $settings->get( 'client_id' ) : '';
-        return $key;
+		return $key;
-    },
+	},
-    'api.secret' => static function (ContainerInterface $container): string {
+	'api.secret'                     => static function ( ContainerInterface $container ): string {
-        $settings = $container->get('wcgateway.settings');
+		$settings = $container->get( 'wcgateway.settings' );
-        return $settings->has('client_secret') ? (string) $settings->get('client_secret') : '';
+		return $settings->has( 'client_secret' ) ? (string) $settings->get( 'client_secret' ) : '';
-    },
+	},
-    'api.prefix' => static function (ContainerInterface $container): string {
+	'api.prefix'                     => static function ( ContainerInterface $container ): string {
-        $settings = $container->get('wcgateway.settings');
+		$settings = $container->get( 'wcgateway.settings' );
-        return $settings->has('prefix') ? (string) $settings->get('prefix') : 'WC-';
+		return $settings->has( 'prefix' ) ? (string) $settings->get( 'prefix' ) : 'WC-';
-    },
+	},
-    'api.endpoint.order' => static function (ContainerInterface $container): OrderEndpoint {
+	'api.endpoint.order'             => static function ( ContainerInterface $container ): OrderEndpoint {
-        $orderFactory = $container->get('api.factory.order');
+		$order_factory           = $container->get( 'api.factory.order' );
-        $patchCollectionFactory = $container->get('api.factory.patch-collection-factory');
+		$patch_collection_factory = $container->get( 'api.factory.patch-collection-factory' );
-        $logger = $container->get('woocommerce.logger.woocommerce');
+		$logger                 = $container->get( 'woocommerce.logger.woocommerce' );
-        /**
+		/**
-         * @var SessionHandler $sessionHandler
+		 * The session handler.
-         */
+		 *
-        $sessionHandler = $container->get('session.handler');
+		 * @var SessionHandler $session_handler
-        $bnCode = $sessionHandler->bnCode();
+		 */
+		$session_handler = $container->get( 'session.handler' );
+		$bn_code         = $session_handler->bnCode();
 
-        /**
+		/**
-         * @var Settings $settings
+		 * The settings.
-         */
+		 *
-        $settings = $container->get('wcgateway.settings');
+		 * @var Settings $settings
-        $intent = $settings->has('intent') && strtoupper((string) $settings->get('intent')) === 'AUTHORIZE' ? 'AUTHORIZE' : 'CAPTURE';
+		 */
-        $applicationContextRepository = $container->get('api.repository.application-context');
+		$settings                     = $container->get( 'wcgateway.settings' );
-        $paypalRequestId = $container->get('api.repository.paypal-request-id');
+		$intent                       = $settings->has( 'intent' ) && strtoupper( (string) $settings->get( 'intent' ) ) === 'AUTHORIZE' ? 'AUTHORIZE' : 'CAPTURE';
-        return new OrderEndpoint(
+		$application_context_repository = $container->get( 'api.repository.application-context' );
-            $container->get('api.host'),
+		$pay_pal_request_id_repository              = $container->get( 'api.repository.paypal-request-id' );
-            $container->get('api.bearer'),
+		return new OrderEndpoint(
-            $orderFactory,
+			$container->get( 'api.host' ),
-            $patchCollectionFactory,
+			$container->get( 'api.bearer' ),
-            $intent,
+			$order_factory,
-            $logger,
+			$patch_collection_factory,
-            $applicationContextRepository,
+			$intent,
-            $paypalRequestId,
+			$logger,
-            $bnCode
+			$application_context_repository,
-        );
+			$pay_pal_request_id_repository,
-    },
+			$bn_code
-    'woocommerce.logger.woocommerce' => function (ContainerInterface $container): LoggerInterface {
+		);
-        $settings = $container->get('wcgateway.settings');
+	},
-        if (! function_exists('wc_get_logger') || ! $settings->has('logging_enabled') || ! $settings->get('logging_enabled')) {
+	'woocommerce.logger.woocommerce' => function ( ContainerInterface $container ): LoggerInterface {
-            return new NullLogger();
+		$settings = $container->get( 'wcgateway.settings' );
-        }
+		if ( ! function_exists( 'wc_get_logger' ) || ! $settings->has( 'logging_enabled' ) || ! $settings->get( 'logging_enabled' ) ) {
+			return new NullLogger();
+		}
 
-        $source = $container->get('woocommerce.logger.source');
+		$source = $container->get( 'woocommerce.logger.source' );
-        return new WooCommerceLogger(
+		return new WooCommerceLogger(
-            wc_get_logger(),
+			wc_get_logger(),
-            $source
+			$source
-        );
+		);
-    },
+	},
-];
+);

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

@@ -1,4 +1,9 @@
 <?php
+/**
+ * The module.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway
+ */
 
 declare(strict_types=1);
 
@@ -7,5 +12,5 @@ namespace Inpsyde\PayPalCommerce\WcGateway;
 use Dhii\Modular\Module\ModuleInterface;
 
 return static function (): ModuleInterface {
-    return new WcGatewayModule();
+	return new WcGatewayModule();
 };

modules.local/ppcp-wc-gateway/src/Admin/OrderTablePaymentStatusColumn.php

@@ -1,87 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Admin;
-
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
-
-class OrderTablePaymentStatusColumn {
-
-	private const COLUMN_KEY       = 'ppcp_payment_status';
-	private const INTENT           = 'authorize';
-	private const AFTER_COLUMN_KEY = 'order_status';
-	private $settings;
-
-	public function __construct( Settings $settings ) {
-		$this->settings = $settings;
-	}
-
-	public function register( array $columns ): array {
-		if ( ! $this->settings->has( 'intent' ) || $this->settings->get( 'intent' ) !== self::INTENT ) {
-			return $columns;
-		}
-
-		$statusColumnPosition = array_search( self::AFTER_COLUMN_KEY, array_keys( $columns ), true );
-		$toInsertPosition     = false === $statusColumnPosition ? count( $columns ) : $statusColumnPosition + 1;
-
-		$columns = array_merge(
-			array_slice( $columns, 0, $toInsertPosition ),
-			array(
-				self::COLUMN_KEY => __( 'Payment Captured', 'woocommerce-paypal-commerce-gateway' ),
-			),
-			array_slice( $columns, $toInsertPosition )
-		);
-
-		return $columns;
-	}
-
-	public function render( string $column, int $wcOrderId ) {
-		if ( ! $this->settings->has( 'intent' ) || $this->settings->get( 'intent' ) !== self::INTENT ) {
-			return;
-		}
-
-		if ( self::COLUMN_KEY !== $column ) {
-			return;
-		}
-
-		$wcOrder = wc_get_order( $wcOrderId );
-
-		if ( ! is_a( $wcOrder, \WC_Order::class ) || ! $this->renderForOrder( $wcOrder ) ) {
-			return;
-		}
-
-		if ( $this->isCaptured( $wcOrder ) ) {
-			$this->renderCompletedStatus();
-			return;
-		}
-
-		$this->renderIncompletedStatus();
-	}
-
-	private function renderForOrder( \WC_Order $order ): bool {
-		return ! empty( $order->get_meta( PayPalGateway::CAPTURED_META_KEY ) );
-	}
-
-	private function isCaptured( \WC_Order $wcOrder ): bool {
-		$captured = $wcOrder->get_meta( PayPalGateway::CAPTURED_META_KEY );
-		return wc_string_to_bool( $captured );
-	}
-
-	private function renderCompletedStatus() {
-		printf(
-			'<span class="dashicons dashicons-yes">
-                        <span class="screen-reader-text">%s</span>
-                    </span>',
-			esc_html__( 'Payment captured', 'woocommerce-paypal-commerce-gateway' )
-		);
-	}
-
-	private function renderIncompletedStatus() {
-		printf(
-			'<mark class="onbackorder">%s</mark>',
-			esc_html__( 'Not captured', 'woocommerce-paypal-commerce-gateway' )
-		);
-	}
-}

modules.local/ppcp-wc-gateway/src/Admin/class-ordertablepaymentstatuscolumn.php

@@ -0,0 +1,140 @@
+<?php
+/**
+ * Renders the columns to display to the merchant, which orders have been authorized and
+ * which have not been authorized yet.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Admin
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Admin;
+
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
+
+/**
+ * Class OrderTablePaymentStatusColumn
+ */
+class OrderTablePaymentStatusColumn {
+
+	private const COLUMN_KEY       = 'ppcp_payment_status';
+	private const INTENT           = 'authorize';
+	private const AFTER_COLUMN_KEY = 'order_status';
+
+	/**
+	 * The settings.
+	 *
+	 * @var Settings
+	 */
+	private $settings;
+
+	/**
+	 * OrderTablePaymentStatusColumn constructor.
+	 *
+	 * @param Settings $settings The Settings.
+	 */
+	public function __construct( Settings $settings ) {
+		$this->settings = $settings;
+	}
+
+	/**
+	 * Register the columns.
+	 *
+	 * @param array $columns The existing columns.
+	 *
+	 * @return array
+	 */
+	public function register( array $columns ): array {
+		if ( ! $this->settings->has( 'intent' ) || $this->settings->get( 'intent' ) !== self::INTENT ) {
+			return $columns;
+		}
+
+		$status_column_position = array_search( self::AFTER_COLUMN_KEY, array_keys( $columns ), true );
+		$to_insert_position     = false === $status_column_position ? count( $columns ) : $status_column_position + 1;
+
+		$columns = array_merge(
+			array_slice( $columns, 0, $to_insert_position ),
+			array(
+				self::COLUMN_KEY => __( 'Payment Captured', 'woocommerce-paypal-commerce-gateway' ),
+			),
+			array_slice( $columns, $to_insert_position )
+		);
+
+		return $columns;
+	}
+
+	/**
+	 * Render the column.
+	 *
+	 * @param string $column The column.
+	 * @param int    $wc_order_id The id or the Woocommerce order.
+	 */
+	public function render( string $column, int $wc_order_id ) {
+		if ( ! $this->settings->has( 'intent' ) || $this->settings->get( 'intent' ) !== self::INTENT ) {
+			return;
+		}
+
+		if ( self::COLUMN_KEY !== $column ) {
+			return;
+		}
+
+		$wc_order = wc_get_order( $wc_order_id );
+
+		if ( ! is_a( $wc_order, \WC_Order::class ) || ! $this->render_for_order( $wc_order ) ) {
+			return;
+		}
+
+		if ( $this->is_captured( $wc_order ) ) {
+			$this->render_completed_status();
+			return;
+		}
+
+		$this->render_incomplete_status();
+	}
+
+	/**
+	 * Whether to render the authorization status of an order or not.
+	 *
+	 * @param \WC_Order $order The Woocommerce order.
+	 *
+	 * @return bool
+	 */
+	private function render_for_order( \WC_Order $order ): bool {
+		return ! empty( $order->get_meta( PayPalGateway::CAPTURED_META_KEY ) );
+	}
+
+	/**
+	 * Whether the order has been captured or not.
+	 *
+	 * @param \WC_Order $wc_order The Woocommerce order.
+	 *
+	 * @return bool
+	 */
+	private function is_captured( \WC_Order $wc_order ): bool {
+		$captured = $wc_order->get_meta( PayPalGateway::CAPTURED_META_KEY );
+		return wc_string_to_bool( $captured );
+	}
+
+	/**
+	 * Renders the captured status.
+	 */
+	private function render_completed_status() {
+		printf(
+			'<span class="dashicons dashicons-yes">
+                        <span class="screen-reader-text">%s</span>
+                    </span>',
+			esc_html__( 'Payment captured', 'woocommerce-paypal-commerce-gateway' )
+		);
+	}
+
+	/**
+	 * Renders the "not captured" status.
+	 */
+	private function render_incomplete_status() {
+		printf(
+			'<mark class="onbackorder">%s</mark>',
+			esc_html__( 'Not captured', 'woocommerce-paypal-commerce-gateway' )
+		);
+	}
+}

modules.local/ppcp-wc-gateway/src/Admin/class-paymentstatusorderdetail.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * Renders the not captured information.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Admin
+ */
 
 declare(strict_types=1);
 
@@ -6,12 +11,20 @@ namespace Inpsyde\PayPalCommerce\WcGateway\Admin;
 
 use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
 
+/**
+ * Class PaymentStatusOrderDetail
+ */
 class PaymentStatusOrderDetail {
 
-	public function render( int $wcOrderId ) {
+	/**
-		$wcOrder  = new \WC_Order( $wcOrderId );
+	 * Renders the not captured information.
-		$intent   = $wcOrder->get_meta( PayPalGateway::INTENT_META_KEY );
+	 *
-		$captured = $wcOrder->get_meta( PayPalGateway::CAPTURED_META_KEY );
+	 * @param int $wc_order_id The Woocommerce order id.
+	 */
+	public function render( int $wc_order_id ) {
+		$wc_order = new \WC_Order( $wc_order_id );
+		$intent   = $wc_order->get_meta( PayPalGateway::INTENT_META_KEY );
+		$captured = $wc_order->get_meta( PayPalGateway::CAPTURED_META_KEY );
 
 		if ( strcasecmp( $intent, 'AUTHORIZE' ) !== 0 ) {
 			return;
@@ -31,7 +44,7 @@ class PaymentStatusOrderDetail {
 			esc_html__(
 				'To capture the payment select capture action from the list below.',
 				'woocommerce-paypal-commerce-gateway'
-			),
+			)
 		);
 	}
 }

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

@@ -1,124 +0,0 @@
-<?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 = array();
-
-	/**
-	 * @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 {
-		$order = $this->sessionHandler->order();
-		if ( ! $order ) {
-			return null;
-		}
-
-		$shipping = $this->readShippingFromOrder();
-		$payer    = $order->payer();
-
-		$addressMap    = array(
-			'billing_address_1' => 'addressLine1',
-			'billing_address_2' => 'addressLine2',
-			'billing_postcode'  => 'postalCode',
-			'billing_country'   => 'countryCode',
-			'billing_city'      => 'adminArea2',
-			'billing_state'     => 'adminArea1',
-		);
-		$payerNameMap  = array(
-			'billing_last_name'  => 'surname',
-			'billing_first_name' => 'givenName',
-		);
-		$payerMap      = array(
-			'billing_email' => 'emailAddress',
-		);
-		$payerPhoneMap = array(
-			'billing_phone' => 'nationalNumber',
-		);
-
-		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;
-		}
-
-		if (
-			array_key_exists( $fieldId, $payerPhoneMap )
-			&& $payer
-			&& $payer->phone()
-			&& $payer->phone()->phone()
-		) {
-			return $payer->phone()->phone()->{$payerPhoneMap[ $fieldId ]}() ?: null;
-		}
-
-		return null;
-	}
-
-	private function readShippingFromOrder(): ?Shipping {
-		$order = $this->sessionHandler->order();
-		if ( ! $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 ) {
-			$shipping = $unit->shipping();
-			if ( $shipping ) {
-				break;
-			}
-		}
-
-		$this->shippingCache[ $order->id() ] = $shipping;
-
-		return $shipping;
-	}
-}

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

@@ -1,67 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Checkout;
-
-use Inpsyde\PayPalCommerce\Session\SessionHandler;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\CreditCardGateway;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-use Psr\Container\ContainerInterface;
-
-class DisableGateways {
-
-
-	private $sessionHandler;
-	private $settings;
-	public function __construct(
-		SessionHandler $sessionHandler,
-		ContainerInterface $settings
-	) {
-
-		$this->sessionHandler = $sessionHandler;
-		$this->settings       = $settings;
-	}
-
-	public function handler( array $methods ): array {
-		if ( ! isset( $methods[ PayPalGateway::ID ] ) && ! isset( $methods[ CreditCardGateway::ID ] ) ) {
-			return $methods;
-		}
-		if (
-			! $this->settings->has( 'merchant_email' )
-			|| ! is_email( $this->settings->get( 'merchant_email' ) )
-		) {
-			unset( $methods[ PayPalGateway::ID ] );
-			unset( $methods[ CreditCardGateway::ID ] );
-			return $methods;
-		}
-
-		if ( ! $this->settings->has( 'client_id' ) || empty( $this->settings->get( 'client_id' ) ) ) {
-			unset( $methods[ CreditCardGateway::ID ] );
-		}
-
-		if ( ! $this->needsToDisableGateways() ) {
-			return $methods;
-		}
-
-		if ( $this->isCreditCard() ) {
-			return array( CreditCardGateway::ID => $methods[ CreditCardGateway::ID ] );
-		}
-		return array( PayPalGateway::ID => $methods[ PayPalGateway::ID ] );
-	}
-
-	private function needsToDisableGateways(): bool {
-		return $this->sessionHandler->order() !== null;
-	}
-
-	private function isCreditCard(): bool {
-		$order = $this->sessionHandler->order();
-		if ( ! $order ) {
-			return false;
-		}
-		if ( ! $order->paymentSource() || ! $order->paymentSource()->card() ) {
-			return false;
-		}
-		return true;
-	}
-}

modules.local/ppcp-wc-gateway/src/Checkout/class-checkoutpaypaladdresspreset.php

@@ -0,0 +1,152 @@
+<?php
+/**
+ * Service that fills checkout address fields
+ * with address selected via PayPal
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Checkout
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Checkout;
+
+use Inpsyde\PayPalCommerce\ApiClient\Entity\Shipping;
+use Inpsyde\PayPalCommerce\Session\SessionHandler;
+
+/**
+ * Class CheckoutPayPalAddressPreset
+ */
+class CheckoutPayPalAddressPreset {
+
+	/**
+	 * Caches Shipping objects for orders.
+	 *
+	 * @var array
+	 */
+	private $shipping_cache = array();
+
+	/**
+	 * The Session Handler.
+	 *
+	 * @var SessionHandler
+	 */
+	private $session_handler;
+
+	/**
+	 * CheckoutPayPalAddressPreset constructor.
+	 *
+	 * @param SessionHandler $session_handler The session handler.
+	 */
+	public function __construct( SessionHandler $session_handler ) {
+		$this->session_handler = $session_handler;
+	}
+
+	/**
+	 * Filters the checkout fields to replace values if necessary.
+	 *
+	 * @wp-hook woocommerce_checkout_get_value
+	 *
+	 * @param string|null $default_value The default value.
+	 * @param string      $field_id The field ID.
+	 *
+	 * @return string|null
+	 */
+	public function filter_checkout_field( $default_value, $field_id ): ?string {
+		if ( ! is_string( $default_value ) ) {
+			$default_value = null;
+		}
+
+		if ( ! is_string( $field_id ) ) {
+			return $default_value;
+		}
+
+		return $this->read_preset_for_field( $field_id ) ?? $default_value;
+	}
+
+	/**
+	 * Returns the value for a checkout field from an PayPal order if given.
+	 *
+	 * @param string $field_id The ID of the field.
+	 *
+	 * @return string|null
+	 */
+	private function read_preset_for_field( string $field_id ): ?string {
+		$order = $this->session_handler->order();
+		if ( ! $order ) {
+			return null;
+		}
+
+		$shipping = $this->read_shipping_from_order();
+		$payer    = $order->payer();
+
+		$address_map     = array(
+			'billing_address_1' => 'addressLine1',
+			'billing_address_2' => 'addressLine2',
+			'billing_postcode'  => 'postalCode',
+			'billing_country'   => 'countryCode',
+			'billing_city'      => 'adminArea2',
+			'billing_state'     => 'adminArea1',
+		);
+		$payer_name_map  = array(
+			'billing_last_name'  => 'surname',
+			'billing_first_name' => 'givenName',
+		);
+		$payer_map       = array(
+			'billing_email' => 'emailAddress',
+		);
+		$payer_phone_map = array(
+			'billing_phone' => 'nationalNumber',
+		);
+
+		if ( array_key_exists( $field_id, $address_map ) && $shipping ) {
+			return $shipping->address()->{$address_map[ $field_id ]}() ? $shipping->address()->{$address_map[ $field_id ]}() : null;
+		}
+
+		if ( array_key_exists( $field_id, $payer_name_map ) && $payer ) {
+			return $payer->name()->{$payer_name_map[ $field_id ]}() ? $payer->name()->{$payer_name_map[ $field_id ]}() : null;
+		}
+
+		if ( array_key_exists( $field_id, $payer_map ) && $payer ) {
+			return $payer->{$payer_map[ $field_id ]}() ? $payer->{$payer_map[ $field_id ]}() : null;
+		}
+
+		if (
+			array_key_exists( $field_id, $payer_phone_map )
+			&& $payer
+			&& $payer->phone()
+			&& $payer->phone()->phone()
+		) {
+			return $payer->phone()->phone()->{$payer_phone_map[ $field_id ]}() ? $payer->phone()->phone()->{$payer_phone_map[ $field_id ]}() : null;
+		}
+
+		return null;
+	}
+
+	/**
+	 * Returns the Shipping object for an order, if given.
+	 *
+	 * @return Shipping|null
+	 */
+	private function read_shipping_from_order(): ?Shipping {
+		$order = $this->session_handler->order();
+		if ( ! $order ) {
+			return null;
+		}
+
+		if ( array_key_exists( $order->id(), $this->shipping_cache ) ) {
+			return $this->shipping_cache[ $order->id() ];
+		}
+
+		$shipping = null;
+		foreach ( $this->session_handler->order()->purchaseUnits() as $unit ) {
+			$shipping = $unit->shipping();
+			if ( $shipping ) {
+				break;
+			}
+		}
+
+		$this->shipping_cache[ $order->id() ] = $shipping;
+
+		return $shipping;
+	}
+}

modules.local/ppcp-wc-gateway/src/Checkout/class-disablegateways.php

@@ -0,0 +1,112 @@
+<?php
+/**
+ * Determines whether specific gateways need to be disabled.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Checkout
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Checkout;
+
+use Inpsyde\PayPalCommerce\Session\SessionHandler;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\CreditCardGateway;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+use Psr\Container\ContainerInterface;
+
+/**
+ * Class DisableGateways
+ */
+class DisableGateways {
+
+
+	/**
+	 * The Session Handler.
+	 *
+	 * @var SessionHandler
+	 */
+	private $session_handler;
+
+	/**
+	 * The Settings.
+	 *
+	 * @var ContainerInterface
+	 */
+	private $settings;
+
+	/**
+	 * DisableGateways constructor.
+	 *
+	 * @param SessionHandler     $session_handler The Session Handler.
+	 * @param ContainerInterface $settings The Settings.
+	 */
+	public function __construct(
+		SessionHandler $session_handler,
+		ContainerInterface $settings
+	) {
+
+		$this->session_handler = $session_handler;
+		$this->settings        = $settings;
+	}
+
+	/**
+	 * Controls the logic for enabling/disabling gateways.
+	 *
+	 * @param array $methods The Gateways.
+	 *
+	 * @return array
+	 */
+	public function handler( array $methods ): array {
+		if ( ! isset( $methods[ PayPalGateway::ID ] ) && ! isset( $methods[ CreditCardGateway::ID ] ) ) {
+			return $methods;
+		}
+		if (
+			! $this->settings->has( 'merchant_email' )
+			|| ! is_email( $this->settings->get( 'merchant_email' ) )
+		) {
+			unset( $methods[ PayPalGateway::ID ] );
+			unset( $methods[ CreditCardGateway::ID ] );
+			return $methods;
+		}
+
+		if ( ! $this->settings->has( 'client_id' ) || empty( $this->settings->get( 'client_id' ) ) ) {
+			unset( $methods[ CreditCardGateway::ID ] );
+		}
+
+		if ( ! $this->needs_to_disable_gateways() ) {
+			return $methods;
+		}
+
+		if ( $this->is_credit_card() ) {
+			return array( CreditCardGateway::ID => $methods[ CreditCardGateway::ID ] );
+		}
+		return array( PayPalGateway::ID => $methods[ PayPalGateway::ID ] );
+	}
+
+	/**
+	 * Whether the Gateways need to be disabled. When we come to the checkout with a running PayPal
+	 * session, we need to disable the other Gateways, so the customer can smoothly sail through the
+	 * process.
+	 *
+	 * @return bool
+	 */
+	private function needs_to_disable_gateways(): bool {
+		return $this->session_handler->order() !== null;
+	}
+
+	/**
+	 * Whether the current PayPal session is done via DCC payment.
+	 *
+	 * @return bool
+	 */
+	private function is_credit_card(): bool {
+		$order = $this->session_handler->order();
+		if ( ! $order ) {
+			return false;
+		}
+		if ( ! $order->paymentSource() || ! $order->paymentSource()->card() ) {
+			return false;
+		}
+		return true;
+	}
+}

modules.local/ppcp-wc-gateway/src/Endpoint/ReturnUrlEndpoint.php

@@ -1,52 +0,0 @@
-<?php
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Endpoint;
-
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-use Inpsyde\PayPalCommerce\Webhooks\Handler\PrefixTrait;
-
-class ReturnUrlEndpoint {
-
-	use PrefixTrait;
-	public const ENDPOINT = 'ppc-return-url';
-
-	private $gateway;
-	private $orderEndpoint;
-	public function __construct( PayPalGateway $gateway, OrderEndpoint $orderEndpoint, string $prefix ) {
-		$this->gateway       = $gateway;
-		$this->orderEndpoint = $orderEndpoint;
-		$this->prefix        = $prefix;
-	}
-
-	public function handleRequest() {
-
-		if ( ! isset( $_GET['token'] ) ) {
-			exit;
-		}
-		$token = sanitize_text_field( wp_unslash( $_GET['token'] ) );
-		$order = $this->orderEndpoint->order( $token );
-		if ( ! $order ) {
-			exit;
-		}
-
-		$wcOrderId = $this->sanitize_custom_id( $order->purchaseUnits()[0]->customId() );
-		if ( ! $wcOrderId ) {
-			exit;
-		}
-
-		$wcOrder = wc_get_order( $wcOrderId );
-		if ( ! $wcOrder ) {
-			exit;
-		}
-
-		$success = $this->gateway->process_payment( $wcOrderId );
-		if ( isset( $success['result'] ) && $success['result'] === 'success' ) {
-			wp_redirect( $success['redirect'] );
-			exit;
-		}
-		wp_redirect( wc_get_checkout_url() );
-		exit;
-	}
-}

modules.local/ppcp-wc-gateway/src/Endpoint/class-returnurlendpoint.php

@@ -0,0 +1,86 @@
+<?php
+/**
+ * Controls the endpoint for customers returning from PayPal.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Endpoint
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Endpoint;
+
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+use Inpsyde\PayPalCommerce\Webhooks\Handler\PrefixTrait;
+
+/**
+ * Class ReturnUrlEndpoint
+ */
+class ReturnUrlEndpoint {
+
+	use PrefixTrait;
+	public const ENDPOINT = 'ppc-return-url';
+
+	/**
+	 * The PayPal Gateway.
+	 *
+	 * @var PayPalGateway
+	 */
+	private $gateway;
+
+	/**
+	 * The Order Endpoint.
+	 *
+	 * @var OrderEndpoint
+	 */
+	private $order_endpoint;
+
+	/**
+	 * ReturnUrlEndpoint constructor.
+	 *
+	 * @param PayPalGateway $gateway        The PayPal Gateway.
+	 * @param OrderEndpoint $order_endpoint The Order Endpoint.
+	 * @param string        $prefix                The prefix.
+	 */
+	public function __construct( PayPalGateway $gateway, OrderEndpoint $order_endpoint, string $prefix ) {
+		$this->gateway        = $gateway;
+		$this->order_endpoint = $order_endpoint;
+		$this->prefix         = $prefix;
+	}
+
+	/**
+	 * Handles the incoming request.
+	 */
+	public function handle_request() {
+
+		// phpcs:disable WordPress.Security.NonceVerification.Recommended
+		if ( ! isset( $_GET['token'] ) ) {
+			exit();
+		}
+
+		$token = sanitize_text_field( wp_unslash( $_GET['token'] ) );
+		// phpcs:enable WordPress.Security.NonceVerification.Recommended
+		$order = $this->order_endpoint->order( $token );
+		if ( ! $order ) {
+			exit();
+		}
+
+		$wc_order_id = $this->sanitize_custom_id( $order->purchaseUnits()[0]->customId() );
+		if ( ! $wc_order_id ) {
+			exit();
+		}
+
+		$wc_order = wc_get_order( $wc_order_id );
+		if ( ! $wc_order ) {
+			exit();
+		}
+
+		$success = $this->gateway->process_payment( $wc_order_id );
+		if ( isset( $success['result'] ) && 'success' === $success['result'] ) {
+			wp_safe_redirect( $success['redirect'] );
+			exit();
+		}
+		wp_safe_redirect( wc_get_checkout_url() );
+		exit();
+	}
+}

modules.local/ppcp-wc-gateway/src/Exception/class-notfoundexception.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * The Not Found Exception for the Settings Container.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Exception
+ */
 
 declare(strict_types=1);
 
@@ -7,6 +12,9 @@ namespace Inpsyde\PayPalCommerce\WcGateway\Exception;
 use Exception;
 use Psr\Container\NotFoundExceptionInterface;
 
+/**
+ * Class NotFoundException
+ */
 class NotFoundException extends Exception implements NotFoundExceptionInterface {
 
 

modules.local/ppcp-wc-gateway/src/Gateway/WcGatewayInterface.php

@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Gateway;
-
-interface WcGatewayInterface {
-
-
-}

modules.local/ppcp-wc-gateway/src/Gateway/class-creditcardgateway.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * The Credit card gateway.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Gateway
+ */
 
 declare(strict_types=1);
 
@@ -11,32 +16,48 @@ use Inpsyde\PayPalCommerce\WcGateway\Processor\OrderProcessor;
 use Inpsyde\PayPalCommerce\WcGateway\Settings\SettingsRenderer;
 use Psr\Container\ContainerInterface;
 
-//phpcs:disable PSR1.Methods.CamelCapsMethodName.NotCamelCaps
+/**
-//phpcs:disable Inpsyde.CodeQuality.ArgumentTypeDeclaration.NoArgumentType
+ * Class CreditCardGateway
-//phpcs:disable Inpsyde.CodeQuality.NoAccessors.NoGetter
+ */
-//phpcs:disable Inpsyde.CodeQuality.ReturnTypeDeclaration.NoReturnType
 class CreditCardGateway extends PayPalGateway {
 
 	public const ID = 'ppcp-credit-card-gateway';
 
-	private $moduleUrl;
+	/**
+	 * The URL to the module.
+	 *
+	 * @var string
+	 */
+	private $module_url;
+
+	/**
+	 * CreditCardGateway constructor.
+	 *
+	 * @param SettingsRenderer            $settings_renderer The Settings Renderer.
+	 * @param OrderProcessor              $order_processor The Order processor.
+	 * @param AuthorizedPaymentsProcessor $authorized_payments_processor The Authorized Payments processor.
+	 * @param AuthorizeOrderActionNotice  $notice The Notices.
+	 * @param ContainerInterface          $config The settings.
+	 * @param string                      $module_url The URL to the module.
+	 * @param SessionHandler              $session_handler The Session Handler.
+	 */
 	public function __construct(
-		SettingsRenderer $settingsRenderer,
+		SettingsRenderer $settings_renderer,
-		OrderProcessor $orderProcessor,
+		OrderProcessor $order_processor,
-		AuthorizedPaymentsProcessor $authorizedPayments,
+		AuthorizedPaymentsProcessor $authorized_payments_processor,
 		AuthorizeOrderActionNotice $notice,
 		ContainerInterface $config,
-		string $moduleUrl,
+		string $module_url,
-		SessionHandler $sessionHandler
+		SessionHandler $session_handler
 	) {
 
-		$this->id                 = self::ID;
+		$this->id                  = self::ID;
-		$this->orderProcessor     = $orderProcessor;
+		$this->order_processor     = $order_processor;
-		$this->authorizedPayments = $authorizedPayments;
+		$this->authorized_payments = $authorized_payments_processor;
-		$this->notice             = $notice;
+		$this->notice              = $notice;
-		$this->settingsRenderer   = $settingsRenderer;
+		$this->settings_renderer   = $settings_renderer;
-		$this->config             = $config;
+		$this->config              = $config;
-		$this->sessionHandler     = $sessionHandler;
+		$this->session_handler     = $session_handler;
 		if (
 			defined( 'PPCP_FLAG_SUBSCRIPTION' )
 			&& PPCP_FLAG_SUBSCRIPTION
@@ -82,9 +103,12 @@ class CreditCardGateway extends PayPalGateway {
 			)
 		);
 
-		$this->moduleUrl = $moduleUrl;
+		$this->module_url = $module_url;
 	}
 
+	/**
+	 * Initialize the form fields.
+	 */
 	public function init_form_fields() {
 		$this->form_fields = array(
 			'enabled' => array(
@@ -99,15 +123,25 @@ class CreditCardGateway extends PayPalGateway {
 		);
 	}
 
+	/**
+	 * Renders the settings.
+	 *
+	 * @return string
+	 */
 	public function generate_ppcp_html(): string {
 
 		ob_start();
-		$this->settingsRenderer->render( true );
+		$this->settings_renderer->render( true );
 		$content = ob_get_contents();
 		ob_end_clean();
 		return $content;
 	}
 
+	/**
+	 * Returns the title of the gateway.
+	 *
+	 * @return string
+	 */
 	public function get_title() {
 
 		if ( is_admin() ) {
@@ -119,12 +153,12 @@ class CreditCardGateway extends PayPalGateway {
 			return $title;
 		}
 
-		$titleOptions = $this->cardLabels();
+		$title_options = $this->card_labels();
-		$images       = array_map(
+		$images        = array_map(
-			function ( string $type ) use ( $titleOptions ): string {
+			function ( string $type ) use ( $title_options ): string {
 				return '<img
-                 title="' . esc_attr( $titleOptions[ $type ] ) . '"
+                 title="' . esc_attr( $title_options[ $type ] ) . '"
-                 src="' . esc_url( $this->moduleUrl ) . '/assets/images/' . esc_attr( $type ) . '.svg"
+                 src="' . esc_url( $this->module_url ) . '/assets/images/' . esc_attr( $type ) . '.svg"
                  class="ppcp-card-icon"
                 > ';
 			},
@@ -133,7 +167,12 @@ class CreditCardGateway extends PayPalGateway {
 		return $title . implode( '', $images );
 	}
 
-	private function cardLabels(): array {
+	/**
+	 * Returns an array of credit card names.
+	 *
+	 * @return array
+	 */
+	private function card_labels(): array {
 		return array(
 			'visa'       => _x(
 				'Visa',

modules.local/ppcp-wc-gateway/src/Gateway/class-paypalgateway.php

@@ -1,59 +1,100 @@
 <?php
+/**
+ * The PayPal Payment Gateway
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Gateway
+ */
 
 declare(strict_types=1);
 
 namespace Inpsyde\PayPalCommerce\WcGateway\Gateway;
 
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\PaymentsEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\Order;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\OrderStatus;
 use Inpsyde\PayPalCommerce\ApiClient\Exception\PayPalApiException;
-use Inpsyde\PayPalCommerce\ApiClient\Factory\OrderFactory;
-use Inpsyde\PayPalCommerce\ApiClient\Repository\CartRepository;
-use Inpsyde\PayPalCommerce\Button\Assets\SmartButton;
-use Inpsyde\PayPalCommerce\Onboarding\Render\OnboardingRenderer;
 use Inpsyde\PayPalCommerce\Session\SessionHandler;
 use Inpsyde\PayPalCommerce\WcGateway\Notice\AuthorizeOrderActionNotice;
 use Inpsyde\PayPalCommerce\WcGateway\Processor\AuthorizedPaymentsProcessor;
 use Inpsyde\PayPalCommerce\WcGateway\Processor\OrderProcessor;
-use Inpsyde\PayPalCommerce\WcGateway\Settings\SettingsFields;
 use Inpsyde\PayPalCommerce\WcGateway\Settings\SettingsRenderer;
 use Psr\Container\ContainerInterface;
 
-//phpcs:disable PSR1.Methods.CamelCapsMethodName.NotCamelCaps
+/**
-//phpcs:disable Inpsyde.CodeQuality.ArgumentTypeDeclaration.NoArgumentType
+ * Class PayPalGateway
+ */
 class PayPalGateway extends \WC_Payment_Gateway {
 
-
 	public const ID                = 'ppcp-gateway';
 	public const CAPTURED_META_KEY = '_ppcp_paypal_captured';
 	public const INTENT_META_KEY   = '_ppcp_paypal_intent';
 	public const ORDER_ID_META_KEY = '_ppcp_paypal_order_id';
 
-	protected $settingsRenderer;
+	/**
-	protected $authorizedPayments;
+	 * The Settings Renderer.
-	protected $notice;
+	 *
-	protected $orderProcessor;
+	 * @var SettingsRenderer
-	protected $config;
+	 */
-	protected $sessionHandler;
+	protected $settings_renderer;
 
+	/**
+	 * The processor for authorized payments.
+	 *
+	 * @var AuthorizedPaymentsProcessor
+	 */
+	protected $authorized_payments;
+
+	/**
+	 * The Authorized Order Action Notice.
+	 *
+	 * @var AuthorizeOrderActionNotice
+	 */
+	protected $notice;
+
+	/**
+	 * The processor for orders.
+	 *
+	 * @var OrderProcessor
+	 */
+	protected $order_processor;
+
+	/**
+	 * The settings.
+	 *
+	 * @var ContainerInterface
+	 */
+	protected $config;
+
+	/**
+	 * The Session Handler.
+	 *
+	 * @var SessionHandler
+	 */
+	protected $session_handler;
+
+	/**
+	 * PayPalGateway constructor.
+	 *
+	 * @param SettingsRenderer            $settings_renderer The Settings Renderer.
+	 * @param OrderProcessor              $order_processor The Order Processor.
+	 * @param AuthorizedPaymentsProcessor $authorized_payments_processor The Authorized Payments Processor.
+	 * @param AuthorizeOrderActionNotice  $notice The Order Action Notice object.
+	 * @param ContainerInterface          $config The settings.
+	 * @param SessionHandler              $session_handler The Session Handler.
+	 */
 	public function __construct(
-		SettingsRenderer $settingsRenderer,
+		SettingsRenderer $settings_renderer,
-		OrderProcessor $orderProcessor,
+		OrderProcessor $order_processor,
-		AuthorizedPaymentsProcessor $authorizedPayments,
+		AuthorizedPaymentsProcessor $authorized_payments_processor,
 		AuthorizeOrderActionNotice $notice,
 		ContainerInterface $config,
-		SessionHandler $sessionHandler
+		SessionHandler $session_handler
 	) {
 
-		$this->id                 = self::ID;
+		$this->id                  = self::ID;
-		$this->orderProcessor     = $orderProcessor;
+		$this->order_processor     = $order_processor;
-		$this->authorizedPayments = $authorizedPayments;
+		$this->authorized_payments = $authorized_payments_processor;
-		$this->notice             = $notice;
+		$this->notice              = $notice;
-		$this->settingsRenderer   = $settingsRenderer;
+		$this->settings_renderer   = $settings_renderer;
-		$this->config             = $config;
+		$this->config              = $config;
-		$this->sessionHandler     = $sessionHandler;
+		$this->session_handler     = $session_handler;
 		if (
 			defined( 'PPCP_FLAG_SUBSCRIPTION' )
 			&& PPCP_FLAG_SUBSCRIPTION
@@ -97,11 +138,19 @@ class PayPalGateway extends \WC_Payment_Gateway {
 		);
 	}
 
+	/**
+	 * Whether the Gateway needs to be setup.
+	 *
+	 * @return bool
+	 */
 	public function needs_setup(): bool {
 
 		return true;
 	}
 
+	/**
+	 * Initializes the form fields.
+	 */
 	public function init_form_fields() {
 		$this->form_fields = array(
 			'enabled' => array(
@@ -116,10 +165,17 @@ class PayPalGateway extends \WC_Payment_Gateway {
 		);
 	}
 
-	public function process_payment( $orderId ): ?array {
+	/**
+	 * Process a payment for an Woocommerce order.
+	 *
+	 * @param int $order_id The Woocommerce order id.
+	 *
+	 * @return array|null
+	 */
+	public function process_payment( $order_id ): ?array {
 		global $woocommerce;
-		$wcOrder = wc_get_order( $orderId );
+		$wc_order = wc_get_order( $order_id );
-		if ( ! is_a( $wcOrder, \WC_Order::class ) ) {
+		if ( ! is_a( $wc_order, \WC_Order::class ) ) {
 			return null;
 		}
 
@@ -127,26 +183,26 @@ class PayPalGateway extends \WC_Payment_Gateway {
 		 * If the WC_Order is payed through the approved webhook.
 		 */
         //phpcs:disable WordPress.Security.NonceVerification.Recommended
-		if ( isset( $_REQUEST['ppcp-resume-order'] ) && $wcOrder->has_status( 'processing' ) ) {
+		if ( isset( $_REQUEST['ppcp-resume-order'] ) && $wc_order->has_status( 'processing' ) ) {
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $wcOrder ),
+				'redirect' => $this->get_return_url( $wc_order ),
 			);
 		}
         //phpcs:enable WordPress.Security.NonceVerification.Recommended
 
 		try {
-			if ( $this->orderProcessor->process( $wcOrder, $woocommerce ) ) {
+			if ( $this->order_processor->process( $wc_order, $woocommerce ) ) {
 				return array(
 					'result'   => 'success',
-					'redirect' => $this->get_return_url( $wcOrder ),
+					'redirect' => $this->get_return_url( $wc_order ),
 				);
 			}
 		} catch ( PayPalApiException $error ) {
 			if ( $error->hasDetail( 'INSTRUMENT_DECLINED' ) ) {
 				$host = $this->config->has( 'sandbox_on' ) && $this->config->get( 'sandbox_on' ) ?
 					'https://www.sandbox.paypal.com/' : 'https://www.paypal.com/';
-				$url  = $host . 'checkoutnow?token=' . $this->sessionHandler->order()->id();
+				$url  = $host . 'checkoutnow?token=' . $this->session_handler->order()->id();
 
 				return array(
 					'result'   => 'success',
@@ -154,7 +210,7 @@ class PayPalGateway extends \WC_Payment_Gateway {
 				);
 			}
 
-			$this->sessionHandler->destroySessionData();
+			$this->session_handler->destroySessionData();
 			wc_add_notice(
 				__(
 					'Something went wrong. Please try again.',
@@ -167,54 +223,71 @@ class PayPalGateway extends \WC_Payment_Gateway {
 		return null;
 	}
 
-	public function captureAuthorizedPayment( \WC_Order $wcOrder ): bool {
+	/**
-		$isProcessed = $this->authorizedPayments->process( $wcOrder );
+	 * Captures an authorized payment for an Woocommerce order.
-		$this->renderAuthorizationMessageForStatus( $this->authorizedPayments->lastStatus() );
+	 *
+	 * @param \WC_Order $wc_order The Woocommerce order.
+	 *
+	 * @return bool
+	 */
+	public function capture_authorized_payment( \WC_Order $wc_order ): bool {
+		$is_processed = $this->authorized_payments->process( $wc_order );
+		$this->render_authorization_message_for_status( $this->authorized_payments->last_status() );
 
-		if ( $isProcessed ) {
+		if ( $is_processed ) {
-			$wcOrder->add_order_note(
+			$wc_order->add_order_note(
 				__( 'Payment successfully captured.', 'woocommerce-paypal-commerce-gateway' )
 			);
 
-			$wcOrder->set_status( 'processing' );
+			$wc_order->set_status( 'processing' );
-			$wcOrder->update_meta_data( self::CAPTURED_META_KEY, 'true' );
+			$wc_order->update_meta_data( self::CAPTURED_META_KEY, 'true' );
-			$wcOrder->save();
+			$wc_order->save();
 			return true;
 		}
 
-		if ( $this->authorizedPayments->lastStatus() === AuthorizedPaymentsProcessor::ALREADY_CAPTURED ) {
+		if ( $this->authorized_payments->last_status() === AuthorizedPaymentsProcessor::ALREADY_CAPTURED ) {
-			if ( $wcOrder->get_status() === 'on-hold' ) {
+			if ( $wc_order->get_status() === 'on-hold' ) {
-				$wcOrder->add_order_note(
+				$wc_order->add_order_note(
 					__( 'Payment successfully captured.', 'woocommerce-paypal-commerce-gateway' )
 				);
-				$wcOrder->set_status( 'processing' );
+				$wc_order->set_status( 'processing' );
 			}
 
-			$wcOrder->update_meta_data( self::CAPTURED_META_KEY, 'true' );
+			$wc_order->update_meta_data( self::CAPTURED_META_KEY, 'true' );
-			$wcOrder->save();
+			$wc_order->save();
 			return true;
 		}
 		return false;
 	}
 
-	private function renderAuthorizationMessageForStatus( string $status ) {
+	/**
+	 * Displays the notice for a status.
+	 *
+	 * @param string $status The status.
+	 */
+	private function render_authorization_message_for_status( string $status ) {
 
-		$messageMapping = array(
+		$message_mapping = array(
 			AuthorizedPaymentsProcessor::SUCCESSFUL       => AuthorizeOrderActionNotice::SUCCESS,
 			AuthorizedPaymentsProcessor::ALREADY_CAPTURED => AuthorizeOrderActionNotice::ALREADY_CAPTURED,
 			AuthorizedPaymentsProcessor::INACCESSIBLE     => AuthorizeOrderActionNotice::NO_INFO,
 			AuthorizedPaymentsProcessor::NOT_FOUND        => AuthorizeOrderActionNotice::NOT_FOUND,
 		);
-		$displayMessage = ( isset( $messageMapping[ $status ] ) ) ?
+		$display_message = ( isset( $message_mapping[ $status ] ) ) ?
-			$messageMapping[ $status ]
+			$message_mapping[ $status ]
 			: AuthorizeOrderActionNotice::FAILED;
-		$this->notice->displayMessage( $displayMessage );
+		$this->notice->display_message( $display_message );
 	}
 
+	/**
+	 * Renders the settings.
+	 *
+	 * @return string
+	 */
 	public function generate_ppcp_html(): string {
 
 		ob_start();
-		$this->settingsRenderer->render( false );
+		$this->settings_renderer->render( false );
 		$content = ob_get_contents();
 		ob_end_clean();
 		return $content;

modules.local/ppcp-wc-gateway/src/Gateway/class-wcgatewayinterface.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * The WcGateway interface.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Gateway
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Gateway;
+
+/**
+ * Interface WcGatewayInterface
+ */
+interface WcGatewayInterface {
+
+
+}

modules.local/ppcp-wc-gateway/src/Notice/class-authorizeorderactionnotice.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * Contains the messages to display, when capturing an authorization manually.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Notice
+ */
 
 declare(strict_types=1);
 
@@ -6,6 +11,9 @@ namespace Inpsyde\PayPalCommerce\WcGateway\Notice;
 
 use Inpsyde\PayPalCommerce\AdminNotices\Entity\Message;
 
+/**
+ * Class AuthorizeOrderActionNotice
+ */
 class AuthorizeOrderActionNotice {
 
 	public const QUERY_PARAM = 'ppcp-authorized-message';
@@ -16,9 +24,14 @@ class AuthorizeOrderActionNotice {
 	public const SUCCESS          = 84;
 	public const NOT_FOUND        = 85;
 
+	/**
+	 * Returns the current message if there is one.
+	 *
+	 * @return Message|null
+	 */
 	public function message(): ?Message {
 
-		$message = $this->currentMessage();
+		$message = $this->current_message();
 		if ( ! $message ) {
 			return null;
 		}
@@ -26,7 +39,12 @@ class AuthorizeOrderActionNotice {
 		return new Message( $message['message'], $message['type'] );
 	}
 
-	private function currentMessage(): array {
+	/**
+	 * Returns the current message.
+	 *
+	 * @return array
+	 */
+	private function current_message(): array {
 		$messages[ self::NO_INFO ]          = array(
 			'message' => __(
 				'Could not retrieve information. Try again later.',
@@ -67,18 +85,23 @@ class AuthorizeOrderActionNotice {
 		if ( ! isset( $_GET[ self::QUERY_PARAM ] ) ) { // Input ok.
 			return array();
 		}
-		$messageId = absint( $_GET[ self::QUERY_PARAM ] ); // Input ok.
+		$message_id = absint( $_GET[ self::QUERY_PARAM ] ); // Input ok.
         //phpcs:enable WordPress.Security.NonceVerification.Recommended
-		return ( isset( $messages[ $messageId ] ) ) ? $messages[ $messageId ] : array();
+		return ( isset( $messages[ $message_id ] ) ) ? $messages[ $message_id ] : array();
 	}
 
-	public function displayMessage( int $messageCode ): void {
+	/**
+	 * Adds the query parameter for the message to 'redirect_post_location'.
+	 *
+	 * @param int $message_code The message code.
+	 */
+	public function display_message( int $message_code ): void {
 		add_filter(
 			'redirect_post_location',
-			static function ( $location ) use ( $messageCode ) {
+			static function ( $location ) use ( $message_code ) {
 				return add_query_arg(
 					self::QUERY_PARAM,
-					$messageCode,
+					$message_code,
 					$location
 				);
 			}

modules.local/ppcp-wc-gateway/src/Notice/class-connectadminnotice.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * Registers the admin message to "connect your account" if necessary.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Notice
+ */
 
 declare(strict_types=1);
 
@@ -9,35 +14,63 @@ use Inpsyde\PayPalCommerce\Onboarding\State;
 use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
 use Psr\Container\ContainerInterface;
 
+/**
+ * Class ConnectAdminNotice
+ */
 class ConnectAdminNotice {
 
+	/**
+	 * The state.
+	 *
+	 * @var State
+	 */
 	private $state;
+
+	/**
+	 * The settings.
+	 *
+	 * @var ContainerInterface
+	 */
 	private $settings;
 
+	/**
+	 * ConnectAdminNotice constructor.
+	 *
+	 * @param State              $state The state.
+	 * @param ContainerInterface $settings The settings.
+	 */
 	public function __construct( State $state, ContainerInterface $settings ) {
 		$this->state    = $state;
 		$this->settings = $settings;
 	}
 
-	public function connectMessage(): ?Message {
+	/**
-		if ( ! $this->shouldDisplay() ) {
+	 * Returns the message.
+	 *
+	 * @return Message|null
+	 */
+	public function connect_message(): ?Message {
+		if ( ! $this->should_display() ) {
 			return null;
 		}
 
 		$message = sprintf(
-			/* translators: %1$s the gateway name */
+			/* translators: %1$s the gateway name. */
 			__(
 				'PayPal Payments is almost ready. To get started, <a href="%1$s">connect your account</a>.',
 				'woocommerce-paypal-commerce-gateway'
 			),
-			// TODO: find a better way to get the url
 			admin_url( 'admin.php?page=wc-settings&tab=checkout&section=ppcp-gateway' )
 		);
 		return new Message( $message, 'warning' );
 	}
 
-	protected function shouldDisplay(): bool {
+	/**
-		// TODO: decide on what condition to display
+	 * Whether the message should display.
+	 *
+	 * @return bool
+	 */
+	protected function should_display(): bool {
 		return $this->state->currentState() < State::STATE_PROGRESSIVE;
 	}
 }

modules.local/ppcp-wc-gateway/src/Processor/AuthorizedPaymentsProcessor.php

@@ -1,110 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Processor;
-
-use Exception;
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\PaymentsEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\Authorization;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\AuthorizationStatus;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\Order;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-
-class AuthorizedPaymentsProcessor {
-
-	public const SUCCESSFUL       = 'SUCCESSFUL';
-	public const ALREADY_CAPTURED = 'ALREADY_CAPTURED';
-	public const FAILED           = 'FAILED';
-	public const INACCESSIBLE     = 'INACCESSIBLE';
-	public const NOT_FOUND        = 'NOT_FOUND';
-	private $orderEndpoint;
-	private $paymentsEndpoint;
-	private $lastStatus = '';
-
-	public function __construct(
-		OrderEndpoint $orderEndpoint,
-		PaymentsEndpoint $paymentsEndpoint
-	) {
-
-		$this->orderEndpoint    = $orderEndpoint;
-		$this->paymentsEndpoint = $paymentsEndpoint;
-	}
-
-	public function process( \WC_Order $wcOrder ): bool {
-		try {
-			$order = $this->payPalOrderFromWcOrder( $wcOrder );
-		} catch ( Exception $exception ) {
-			if ( $exception->getCode() === 404 ) {
-				$this->lastStatus = self::NOT_FOUND;
-				return false;
-			}
-			$this->lastStatus = self::INACCESSIBLE;
-			return false;
-		}
-
-		$authorizations = $this->allAuthorizations( $order );
-
-		if ( ! $this->areAuthorizationToCapture( ...$authorizations ) ) {
-			$this->lastStatus = self::ALREADY_CAPTURED;
-			return false;
-		}
-
-		try {
-			$this->captureAuthorizations( ...$authorizations );
-		} catch ( Exception $exception ) {
-			$this->lastStatus = self::FAILED;
-			return false;
-		}
-
-		$this->lastStatus = self::SUCCESSFUL;
-		return true;
-	}
-
-	public function lastStatus(): string {
-
-		return $this->lastStatus;
-	}
-
-	private function payPalOrderFromWcOrder( \WC_Order $wcOrder ): Order {
-		$orderId = $wcOrder->get_meta( PayPalGateway::ORDER_ID_META_KEY );
-		return $this->orderEndpoint->order( $orderId );
-	}
-
-	private function allAuthorizations( Order $order ): array {
-		$authorizations = array();
-		foreach ( $order->purchaseUnits() as $purchaseUnit ) {
-			foreach ( $purchaseUnit->payments()->authorizations() as $authorization ) {
-				$authorizations[] = $authorization;
-			}
-		}
-
-		return $authorizations;
-	}
-
-	private function areAuthorizationToCapture( Authorization ...$authorizations ): bool {
-		return (bool) count( $this->authorizationsToCapture( ...$authorizations ) );
-	}
-
-	private function captureAuthorizations( Authorization ...$authorizations ) {
-		$uncapturedAuthorizations = $this->authorizationsToCapture( ...$authorizations );
-		foreach ( $uncapturedAuthorizations as $authorization ) {
-			$this->paymentsEndpoint->capture( $authorization->id() );
-		}
-	}
-
-	/**
-	 * @param Authorization ...$authorizations
-	 * @return Authorization[]
-	 */
-	private function authorizationsToCapture( Authorization ...$authorizations ): array {
-		return array_filter(
-			$authorizations,
-			static function ( Authorization $authorization ): bool {
-				return $authorization->status()->is( AuthorizationStatus::CREATED )
-					|| $authorization->status()->is( AuthorizationStatus::PENDING );
-			}
-		);
-	}
-}

modules.local/ppcp-wc-gateway/src/Processor/OrderProcessor.php

@@ -1,165 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Processor;
-
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Endpoint\PaymentsEndpoint;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\Order;
-use Inpsyde\PayPalCommerce\ApiClient\Entity\OrderStatus;
-use Inpsyde\PayPalCommerce\ApiClient\Factory\OrderFactory;
-use Inpsyde\PayPalCommerce\ApiClient\Repository\CartRepository;
-use Inpsyde\PayPalCommerce\Button\Helper\ThreeDSecure;
-use Inpsyde\PayPalCommerce\Session\SessionHandler;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
-
-class OrderProcessor {
-
-	private $sessionHandler;
-	private $cartRepository;
-	private $orderEndpoint;
-	private $paymentsEndpoint;
-	private $orderFactory;
-	private $threedSecure;
-	private $authorizedPaymentsProcessor;
-	private $settings;
-
-	private $lastError = '';
-
-	public function __construct(
-		SessionHandler $sessionHandler,
-		CartRepository $cartRepository,
-		OrderEndpoint $orderEndpoint,
-		PaymentsEndpoint $paymentsEndpoint,
-		OrderFactory $orderFactory,
-		ThreeDSecure $threedSecure,
-		AuthorizedPaymentsProcessor $authorizedPaymentsProcessor,
-		Settings $settings
-	) {
-
-		$this->sessionHandler              = $sessionHandler;
-		$this->cartRepository              = $cartRepository;
-		$this->orderEndpoint               = $orderEndpoint;
-		$this->paymentsEndpoint            = $paymentsEndpoint;
-		$this->orderFactory                = $orderFactory;
-		$this->threedSecure                = $threedSecure;
-		$this->authorizedPaymentsProcessor = $authorizedPaymentsProcessor;
-		$this->settings                    = $settings;
-	}
-
-	public function process( \WC_Order $wcOrder, \WooCommerce $woocommerce ): bool {
-		$order = $this->sessionHandler->order();
-		$wcOrder->update_meta_data( PayPalGateway::ORDER_ID_META_KEY, $order->id() );
-		$wcOrder->update_meta_data( PayPalGateway::INTENT_META_KEY, $order->intent() );
-
-		$errorMessage = null;
-		if ( ! $order || ! $this->orderIsApproved( $order ) ) {
-			$errorMessage = __(
-				'The payment has not been approved yet.',
-				'woocommerce-paypal-commerce-gateway'
-			);
-		}
-		if ( $errorMessage ) {
-			$this->lastError = sprintf(
-				// translators: %s is the message of the error.
-				__( 'Payment error: %s', 'woocommerce-paypal-commerce-gateway' ),
-				$errorMessage
-			);
-			return false;
-		}
-
-		$order = $this->patchOrder( $wcOrder, $order );
-		if ( $order->intent() === 'CAPTURE' ) {
-			$order = $this->orderEndpoint->capture( $order );
-		}
-
-		if ( $order->intent() === 'AUTHORIZE' ) {
-			$order = $this->orderEndpoint->authorize( $order );
-			$wcOrder->update_meta_data( PayPalGateway::CAPTURED_META_KEY, 'false' );
-		}
-
-		$wcOrder->update_status(
-			'on-hold',
-			__( 'Awaiting payment.', 'woocommerce-paypal-commerce-gateway' )
-		);
-		if ( $order->status()->is( OrderStatus::COMPLETED ) && $order->intent() === 'CAPTURE' ) {
-			$wcOrder->update_status(
-				'processing',
-				__( 'Payment received.', 'woocommerce-paypal-commerce-gateway' )
-			);
-		}
-
-		if ( $this->captureAuthorizedDownloads( $order ) && $this->authorizedPaymentsProcessor->process( $wcOrder ) ) {
-			$wcOrder->add_order_note(
-				__( 'Payment successfully captured.', 'woocommerce-paypal-commerce-gateway' )
-			);
-			$wcOrder->update_meta_data( PayPalGateway::CAPTURED_META_KEY, 'true' );
-			$wcOrder->update_status( 'processing' );
-		}
-		$woocommerce->cart->empty_cart();
-		$this->sessionHandler->destroySessionData();
-		$this->lastError = '';
-		return true;
-	}
-
-	private function captureAuthorizedDownloads( Order $order ): bool {
-		if (
-			! $this->settings->has( 'capture_for_virtual_only' )
-			|| ! $this->settings->get( 'capture_for_virtual_only' )
-		) {
-			return false;
-		}
-
-		if ( $order->intent() === 'CAPTURE' ) {
-			return false;
-		}
-
-		/**
-		 * We fetch the order again as the authorize endpoint (from which the Order derives)
-		 * drops the item's category, making it impossible to check, if purchase units contain
-		 * physical goods.
-		 */
-		$order = $this->orderEndpoint->order( $order->id() );
-
-		foreach ( $order->purchaseUnits() as $unit ) {
-			if ( $unit->containsPhysicalGoodsItems() ) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	public function lastError(): string {
-
-		return $this->lastError;
-	}
-
-	public function patchOrder( \WC_Order $wcOrder, Order $order ): Order {
-		$updatedOrder = $this->orderFactory->fromWcOrder( $wcOrder, $order );
-		$order        = $this->orderEndpoint->patchOrderWith( $order, $updatedOrder );
-		return $order;
-	}
-
-	private function orderIsApproved( Order $order ): bool {
-
-		if ( $order->status()->is( OrderStatus::APPROVED ) ) {
-			return true;
-		}
-
-		if ( ! $order->paymentSource() || ! $order->paymentSource()->card() ) {
-			return false;
-		}
-
-		$isApproved = in_array(
-			$this->threedSecure->proceedWithOrder( $order ),
-			array(
-				ThreeDSecure::NO_DECISION,
-				ThreeDSecure::PROCCEED,
-			),
-			true
-		);
-		return $isApproved;
-	}
-}

modules.local/ppcp-wc-gateway/src/Processor/class-authorizedpaymentsprocessor.php

@@ -0,0 +1,182 @@
+<?php
+/**
+ * Authorizes payments for a given Woocommerce order.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Processor
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Processor;
+
+use Exception;
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\PaymentsEndpoint;
+use Inpsyde\PayPalCommerce\ApiClient\Entity\Authorization;
+use Inpsyde\PayPalCommerce\ApiClient\Entity\AuthorizationStatus;
+use Inpsyde\PayPalCommerce\ApiClient\Entity\Order;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+
+/**
+ * Class AuthorizedPaymentsProcessor
+ */
+class AuthorizedPaymentsProcessor {
+
+	public const SUCCESSFUL       = 'SUCCESSFUL';
+	public const ALREADY_CAPTURED = 'ALREADY_CAPTURED';
+	public const FAILED           = 'FAILED';
+	public const INACCESSIBLE     = 'INACCESSIBLE';
+	public const NOT_FOUND        = 'NOT_FOUND';
+
+	/**
+	 * The Order endpoint.
+	 *
+	 * @var OrderEndpoint
+	 */
+	private $order_endpoint;
+
+	/**
+	 * The Payments endpoint.
+	 *
+	 * @var PaymentsEndpoint
+	 */
+	private $payments_endpoint;
+
+	/**
+	 * The last status.
+	 *
+	 * @var string
+	 */
+	private $last_status = '';
+
+	/**
+	 * AuthorizedPaymentsProcessor constructor.
+	 *
+	 * @param OrderEndpoint    $order_endpoint The Order endpoint.
+	 * @param PaymentsEndpoint $payments_endpoint The Payments endpoint.
+	 */
+	public function __construct(
+		OrderEndpoint $order_endpoint,
+		PaymentsEndpoint $payments_endpoint
+	) {
+
+		$this->order_endpoint    = $order_endpoint;
+		$this->payments_endpoint = $payments_endpoint;
+	}
+
+	/**
+	 * Process a Woocommerce order.
+	 *
+	 * @param \WC_Order $wc_order The Woocommerce order.
+	 *
+	 * @return bool
+	 */
+	public function process( \WC_Order $wc_order ): bool {
+		try {
+			$order = $this->paypal_order_from_wc_order( $wc_order );
+		} catch ( Exception $exception ) {
+			if ( $exception->getCode() === 404 ) {
+				$this->last_status = self::NOT_FOUND;
+				return false;
+			}
+			$this->last_status = self::INACCESSIBLE;
+			return false;
+		}
+
+		$authorizations = $this->all_authorizations( $order );
+
+		if ( ! $this->are_authorzations_to_capture( ...$authorizations ) ) {
+			$this->last_status = self::ALREADY_CAPTURED;
+			return false;
+		}
+
+		try {
+			$this->capture_authorizations( ...$authorizations );
+		} catch ( Exception $exception ) {
+			$this->last_status = self::FAILED;
+			return false;
+		}
+
+		$this->last_status = self::SUCCESSFUL;
+		return true;
+	}
+
+	/**
+	 * Returns the last status.
+	 *
+	 * @return string
+	 */
+	public function last_status(): string {
+
+		return $this->last_status;
+	}
+
+	/**
+	 * Returns the PayPal order from a given Woocommerce order.
+	 *
+	 * @param \WC_Order $wc_order The Woocommerce order.
+	 *
+	 * @return Order
+	 */
+	private function paypal_order_from_wc_order( \WC_Order $wc_order ): Order {
+		$order_id = $wc_order->get_meta( PayPalGateway::ORDER_ID_META_KEY );
+		return $this->order_endpoint->order( $order_id );
+	}
+
+	/**
+	 * Returns all Authorizations from an order.
+	 *
+	 * @param Order $order The order.
+	 *
+	 * @return array
+	 */
+	private function all_authorizations( Order $order ): array {
+		$authorizations = array();
+		foreach ( $order->purchaseUnits() as $purchase_unit ) {
+			foreach ( $purchase_unit->payments()->authorizations() as $authorization ) {
+				$authorizations[] = $authorization;
+			}
+		}
+
+		return $authorizations;
+	}
+
+	/**
+	 * Whether Authorizations need to be captured.
+	 *
+	 * @param Authorization ...$authorizations All Authorizations.
+	 *
+	 * @return bool
+	 */
+	private function are_authorzations_to_capture( Authorization ...$authorizations ): bool {
+		return (bool) count( $this->authorizations_to_capture( ...$authorizations ) );
+	}
+
+	/**
+	 * Captures the authorizations.
+	 *
+	 * @param Authorization ...$authorizations All authorizations.
+	 */
+	private function capture_authorizations( Authorization ...$authorizations ) {
+		$uncaptured_authorizations = $this->authorizations_to_capture( ...$authorizations );
+		foreach ( $uncaptured_authorizations as $authorization ) {
+			$this->payments_endpoint->capture( $authorization->id() );
+		}
+	}
+
+	/**
+	 * The authorizations which need to be captured.
+	 *
+	 * @param Authorization ...$authorizations All Authorizations.
+	 * @return Authorization[]
+	 */
+	private function authorizations_to_capture( Authorization ...$authorizations ): array {
+		return array_filter(
+			$authorizations,
+			static function ( Authorization $authorization ): bool {
+				return $authorization->status()->is( AuthorizationStatus::CREATED )
+					|| $authorization->status()->is( AuthorizationStatus::PENDING );
+			}
+		);
+	}
+}

modules.local/ppcp-wc-gateway/src/Processor/class-orderprocessor.php

@@ -0,0 +1,272 @@
+<?php
+/**
+ * Processes orders for the gateways.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Processor
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Processor;
+
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\OrderEndpoint;
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\PaymentsEndpoint;
+use Inpsyde\PayPalCommerce\ApiClient\Entity\Order;
+use Inpsyde\PayPalCommerce\ApiClient\Entity\OrderStatus;
+use Inpsyde\PayPalCommerce\ApiClient\Factory\OrderFactory;
+use Inpsyde\PayPalCommerce\ApiClient\Repository\CartRepository;
+use Inpsyde\PayPalCommerce\Button\Helper\ThreeDSecure;
+use Inpsyde\PayPalCommerce\Session\SessionHandler;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+use Inpsyde\PayPalCommerce\WcGateway\Settings\Settings;
+
+/**
+ * Class OrderProcessor
+ */
+class OrderProcessor {
+
+	/**
+	 * The Session Handler.
+	 *
+	 * @var SessionHandler
+	 */
+	private $session_handler;
+
+	/**
+	 * The Cart Repository.
+	 *
+	 * @var CartRepository
+	 */
+	private $cart_repository;
+
+	/**
+	 * The Order Endpoint.
+	 *
+	 * @var OrderEndpoint
+	 */
+	private $order_endpoint;
+
+	/**
+	 * The Payments Endpoint.
+	 *
+	 * @var PaymentsEndpoint
+	 */
+	private $payments_endpoint;
+
+	/**
+	 * The Order Factory.
+	 *
+	 * @var OrderFactory
+	 */
+	private $order_factory;
+
+	/**
+	 * The helper for 3d secure.
+	 *
+	 * @var ThreeDSecure
+	 */
+	private $threed_secure;
+
+	/**
+	 * The processor for authorized payments.
+	 *
+	 * @var AuthorizedPaymentsProcessor
+	 */
+	private $authorized_payments_processor;
+
+	/**
+	 * The settings.
+	 *
+	 * @var Settings
+	 */
+	private $settings;
+
+	/**
+	 * The last error.
+	 *
+	 * @var string
+	 */
+	private $last_error = '';
+
+	/**
+	 * OrderProcessor constructor.
+	 *
+	 * @param SessionHandler              $session_handler The Session Handler.
+	 * @param CartRepository              $cart_repository The Cart Repository.
+	 * @param OrderEndpoint               $order_endpoint The Order Endpoint.
+	 * @param PaymentsEndpoint            $payments_endpoint The Payments Endpoint.
+	 * @param OrderFactory                $order_factory The Order Factory.
+	 * @param ThreeDSecure                $three_d_secure The ThreeDSecure Helper.
+	 * @param AuthorizedPaymentsProcessor $authorized_payments_processor The Authorized Payments Processor.
+	 * @param Settings                    $settings The Settings.
+	 */
+	public function __construct(
+		SessionHandler $session_handler,
+		CartRepository $cart_repository,
+		OrderEndpoint $order_endpoint,
+		PaymentsEndpoint $payments_endpoint,
+		OrderFactory $order_factory,
+		ThreeDSecure $three_d_secure,
+		AuthorizedPaymentsProcessor $authorized_payments_processor,
+		Settings $settings
+	) {
+
+		$this->session_handler               = $session_handler;
+		$this->cart_repository               = $cart_repository;
+		$this->order_endpoint                = $order_endpoint;
+		$this->payments_endpoint             = $payments_endpoint;
+		$this->order_factory                 = $order_factory;
+		$this->threed_secure                 = $three_d_secure;
+		$this->authorized_payments_processor = $authorized_payments_processor;
+		$this->settings                      = $settings;
+	}
+
+	/**
+	 * Processes a given Woocommerce order and captured/authorizes the connected PayPal orders.
+	 *
+	 * @param \WC_Order    $wc_order The Woocommerce order.
+	 * @param \WooCommerce $woocommerce The Woocommerce object.
+	 *
+	 * @return bool
+	 */
+	public function process( \WC_Order $wc_order, \WooCommerce $woocommerce ): bool {
+		$order = $this->session_handler->order();
+		$wc_order->update_meta_data( PayPalGateway::ORDER_ID_META_KEY, $order->id() );
+		$wc_order->update_meta_data( PayPalGateway::INTENT_META_KEY, $order->intent() );
+
+		$error_message = null;
+		if ( ! $order || ! $this->order_is_approved( $order ) ) {
+			$error_message = __(
+				'The payment has not been approved yet.',
+				'woocommerce-paypal-commerce-gateway'
+			);
+		}
+		if ( $error_message ) {
+			$this->last_error = sprintf(
+				// translators: %s is the message of the error.
+				__( 'Payment error: %s', 'woocommerce-paypal-commerce-gateway' ),
+				$error_message
+			);
+			return false;
+		}
+
+		$order = $this->patch_order( $wc_order, $order );
+		if ( $order->intent() === 'CAPTURE' ) {
+			$order = $this->order_endpoint->capture( $order );
+		}
+
+		if ( $order->intent() === 'AUTHORIZE' ) {
+			$order = $this->order_endpoint->authorize( $order );
+			$wc_order->update_meta_data( PayPalGateway::CAPTURED_META_KEY, 'false' );
+		}
+
+		$wc_order->update_status(
+			'on-hold',
+			__( 'Awaiting payment.', 'woocommerce-paypal-commerce-gateway' )
+		);
+		if ( $order->status()->is( OrderStatus::COMPLETED ) && $order->intent() === 'CAPTURE' ) {
+			$wc_order->update_status(
+				'processing',
+				__( 'Payment received.', 'woocommerce-paypal-commerce-gateway' )
+			);
+		}
+
+		if ( $this->capture_authorized_downloads( $order ) && $this->authorized_payments_processor->process( $wc_order ) ) {
+			$wc_order->add_order_note(
+				__( 'Payment successfully captured.', 'woocommerce-paypal-commerce-gateway' )
+			);
+			$wc_order->update_meta_data( PayPalGateway::CAPTURED_META_KEY, 'true' );
+			$wc_order->update_status( 'processing' );
+		}
+		$woocommerce->cart->empty_cart();
+		$this->session_handler->destroySessionData();
+		$this->last_error = '';
+		return true;
+	}
+
+	/**
+	 * Returns if an order should be captured immediately.
+	 *
+	 * @param Order $order The PayPal order.
+	 *
+	 * @return bool
+	 */
+	private function capture_authorized_downloads( Order $order ): bool {
+		if (
+			! $this->settings->has( 'capture_for_virtual_only' )
+			|| ! $this->settings->get( 'capture_for_virtual_only' )
+		) {
+			return false;
+		}
+
+		if ( $order->intent() === 'CAPTURE' ) {
+			return false;
+		}
+
+		/**
+		 * We fetch the order again as the authorize endpoint (from which the Order derives)
+		 * drops the item's category, making it impossible to check, if purchase units contain
+		 * physical goods.
+		 */
+		$order = $this->order_endpoint->order( $order->id() );
+
+		foreach ( $order->purchaseUnits() as $unit ) {
+			if ( $unit->containsPhysicalGoodsItems() ) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Returns the last error.
+	 *
+	 * @return string
+	 */
+	public function last_error(): string {
+
+		return $this->last_error;
+	}
+
+	/**
+	 * Patches a given PayPal order with a Woocommerce order.
+	 *
+	 * @param \WC_Order $wc_order The Woocommerce order.
+	 * @param Order     $order The PayPal order.
+	 *
+	 * @return Order
+	 */
+	public function patch_order( \WC_Order $wc_order, Order $order ): Order {
+		$updated_order = $this->order_factory->fromWcOrder( $wc_order, $order );
+		$order         = $this->order_endpoint->patchOrderWith( $order, $updated_order );
+		return $order;
+	}
+
+	/**
+	 * Whether a given order is approved.
+	 *
+	 * @param Order $order The order.
+	 *
+	 * @return bool
+	 */
+	private function order_is_approved( Order $order ): bool {
+
+		if ( $order->status()->is( OrderStatus::APPROVED ) ) {
+			return true;
+		}
+
+		if ( ! $order->paymentSource() || ! $order->paymentSource()->card() ) {
+			return false;
+		}
+
+		$is_approved = in_array(
+			$this->threed_secure->proceedWithOrder( $order ),
+			array(
+				ThreeDSecure::NO_DECISION,
+				ThreeDSecure::PROCCEED,
+			),
+			true
+		);
+		return $is_approved;
+	}
+}

modules.local/ppcp-wc-gateway/src/Settings/SettingsListener.php

@@ -1,201 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Inpsyde\PayPalCommerce\WcGateway\Settings;
-
-use Inpsyde\PayPalCommerce\ApiClient\Authentication\PayPalBearer;
-use Inpsyde\PayPalCommerce\Onboarding\State;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\CreditCardGateway;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
-use Inpsyde\PayPalCommerce\Webhooks\WebhookRegistrar;
-use Psr\SimpleCache\CacheInterface;
-
-class SettingsListener {
-
-
-	public const NONCE = 'ppcp-settings';
-	private $settings;
-	private $settingFields;
-	private $webhookRegistrar;
-	private $cache;
-	private $state;
-	public function __construct(
-		Settings $settings,
-		array $settingFields,
-		WebhookRegistrar $webhookRegistrar,
-		CacheInterface $cache,
-		State $state
-	) {
-
-		$this->settings         = $settings;
-		$this->settingFields    = $settingFields;
-		$this->webhookRegistrar = $webhookRegistrar;
-		$this->cache            = $cache;
-		$this->state            = $state;
-	}
-
-	public function listen() {
-
-		if ( ! $this->isValidUpdateRequest() ) {
-			return;
-		}
-
-		/**
-		 * Nonce verification is done in self::isValidUpdateRequest
-		 */
-        //phpcs:disable WordPress.Security.NonceVerification.Missing
-        //phpcs:disable WordPress.Security.NonceVerification.Recommended
-		if ( isset( $_POST['save'] ) && sanitize_text_field( wp_unslash( $_POST['save'] ) ) === 'reset' ) {
-			$this->settings->reset();
-			$this->settings->persist();
-			$this->webhookRegistrar->unregister();
-			if ( $this->cache->has( PayPalBearer::CACHE_KEY ) ) {
-				$this->cache->delete( PayPalBearer::CACHE_KEY );
-			}
-			return;
-		}
-
-        //phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
-        //phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotValidated
-		/**
-		 * Sanitization is done at a later stage.
-		 */
-		$rawData  = ( isset( $_POST['ppcp'] ) ) ? (array) wp_unslash( $_POST['ppcp'] ) : array();
-		$settings = $this->retrieveSettingsFromRawData( $rawData );
-		if ( $_GET['section'] === PayPalGateway::ID ) {
-			$settings['enabled'] = isset( $_POST['woocommerce_ppcp-gateway_enabled'] )
-				&& absint( $_POST['woocommerce_ppcp-gateway_enabled'] ) === 1;
-		}
-		if ( $_GET['section'] === CreditCardGateway::ID ) {
-			$dccEnabledPostKey               = 'woocommerce_ppcp-credit-card-gateway_enabled';
-			$settings['dcc_gateway_enabled'] = isset( $_POST[ $dccEnabledPostKey ] )
-				&& absint( $_POST[ $dccEnabledPostKey ] ) === 1;
-		}
-		$this->maybeRegisterWebhooks( $settings );
-
-		foreach ( $settings as $id => $value ) {
-			$this->settings->set( $id, $value );
-		}
-		$this->settings->persist();
-		if ( $this->cache->has( PayPalBearer::CACHE_KEY ) ) {
-			$this->cache->delete( PayPalBearer::CACHE_KEY );
-		}
-        //phpcs:enable WordPress.Security.ValidatedSanitizedInput.InputNotValidated
-        //phpcs:enable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
-        //phpcs:enable WordPress.Security.NonceVerification.Missing
-	}
-
-	private function maybeRegisterWebhooks( array $settings ) {
-
-		if ( ! $this->settings->has( 'client_id' ) && $settings['client_id'] ) {
-			$this->webhookRegistrar->register();
-		}
-		if ( $this->settings->has( 'client_id' ) && $this->settings->get( 'client_id' ) ) {
-			$currentSecret = $this->settings->has( 'client_secret' ) ?
-				$this->settings->get( 'client_secret' ) : '';
-			if (
-				$settings['client_id'] !== $this->settings->get( 'client_id' )
-				|| $settings['client_secret'] !== $currentSecret
-			) {
-				$this->webhookRegistrar->unregister();
-				$this->webhookRegistrar->register();
-			}
-		}
-	}
-
-    //phpcs:disable Inpsyde.CodeQuality.NestingLevel.MaxExceeded
-    //phpcs:disable Generic.Metrics.CyclomaticComplexity.TooHigh
-    //phpcs:disable Inpsyde.CodeQuality.FunctionLength.TooLong
-	private function retrieveSettingsFromRawData( array $rawData ): array {
-		if ( ! isset( $_GET['section'] ) ) {
-			return array();
-		}
-		$settings = array();
-		foreach ( $this->settingFields as $key => $config ) {
-			if ( ! in_array( $this->state->currentState(), $config['screens'], true ) ) {
-				continue;
-			}
-			if (
-				$config['gateway'] === 'dcc'
-				&& sanitize_text_field( wp_unslash( $_GET['section'] ) ) !== 'ppcp-credit-card-gateway'
-			) {
-				continue;
-			}
-			if (
-				$config['gateway'] === 'paypal'
-				&& sanitize_text_field( wp_unslash( $_GET['section'] ) ) !== 'ppcp-gateway'
-			) {
-				continue;
-			}
-			switch ( $config['type'] ) {
-				case 'checkbox':
-					$settings[ $key ] = isset( $rawData[ $key ] );
-					break;
-				case 'text':
-				case 'ppcp-text-input':
-				case 'ppcp-password':
-					$settings[ $key ] = isset( $rawData[ $key ] ) ? sanitize_text_field( $rawData[ $key ] ) : '';
-					break;
-				case 'password':
-					if ( empty( $rawData[ $key ] ) ) {
-						break;
-					}
-					$settings[ $key ] = sanitize_text_field( $rawData[ $key ] );
-					break;
-				case 'ppcp-multiselect':
-					$values       = isset( $rawData[ $key ] ) ? (array) $rawData[ $key ] : array();
-					$valuesToSave = array();
-					foreach ( $values as $index => $rawValue ) {
-						$value = sanitize_text_field( $rawValue );
-						if ( ! in_array( $value, array_keys( $config['options'] ), true ) ) {
-							continue;
-						}
-						$valuesToSave[] = $value;
-					}
-					$settings[ $key ] = $valuesToSave;
-					break;
-				case 'select':
-					$options          = array_keys( $config['options'] );
-					$settings[ $key ] = isset( $rawData[ $key ] ) && in_array(
-						sanitize_text_field( $rawData[ $key ] ),
-						$options,
-						true
-					) ? sanitize_text_field( $rawData[ $key ] ) : null;
-					break;
-			}
-		}
-		return $settings;
-	}
-    //phpcs:enable Inpsyde.CodeQuality.NestingLevel.MaxExceeded
-    //phpcs:enable Generic.Metrics.CyclomaticComplexity.TooHigh
-
-	private function isValidUpdateRequest(): bool {
-
-		if (
-			! isset( $_REQUEST['section'] )
-			|| ! in_array(
-				sanitize_text_field( wp_unslash( $_REQUEST['section'] ) ),
-				array( 'ppcp-gateway', 'ppcp-credit-card-gateway' ),
-				true
-			)
-		) {
-			return false;
-		}
-
-		if ( ! current_user_can( 'manage_options' ) ) {
-			return false;
-		}
-
-		if (
-			! isset( $_POST['ppcp-nonce'] )
-			|| ! wp_verify_nonce(
-				sanitize_text_field( wp_unslash( $_POST['ppcp-nonce'] ) ),
-				self::NONCE
-			)
-		) {
-			return false;
-		}
-		return true;
-	}
-}

modules.local/ppcp-wc-gateway/src/Settings/class-settings.php

@@ -1,23 +1,39 @@
 <?php
+/**
+ * The settings object.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Settings
+ */
 
 declare(strict_types=1);
 
 namespace Inpsyde\PayPalCommerce\WcGateway\Settings;
 
 use Inpsyde\PayPalCommerce\WcGateway\Exception\NotFoundException;
-use Inpsyde\PayPalCommerce\WcGateway\Gateway\WcGatewayInterface;
 use Psr\Container\ContainerInterface;
 
+/**
+ * Class Settings
+ */
 class Settings implements ContainerInterface {
 
-	public const KEY  = 'woocommerce-ppcp-settings';
+	public const KEY = 'woocommerce-ppcp-settings';
+
+	/**
+	 * The settings.
+	 *
+	 * @var array
+	 */
 	private $settings = array();
 
-	public function __construct() {
+	/**
-	}
+	 * Returns the value for an id.
-
+	 *
-    // phpcs:disable Inpsyde.CodeQuality.ReturnTypeDeclaration.NoReturnType
+	 * @param string $id The value identificator.
-    // phpcs:disable Inpsyde.CodeQuality.ArgumentTypeDeclaration.NoArgumentType
+	 *
+	 * @return mixed
+	 * @throws NotFoundException When nothing was found.
+	 */
 	public function get( $id ) {
 		if ( ! $this->has( $id ) ) {
 			throw new NotFoundException();
@@ -25,24 +41,45 @@ class Settings implements ContainerInterface {
 		return $this->settings[ $id ];
 	}
 
+	/**
+	 * Whether a value exists.
+	 *
+	 * @param string $id The value identificator.
+	 *
+	 * @return bool
+	 */
 	public function has( $id ) {
 		$this->load();
 		return array_key_exists( $id, $this->settings );
 	}
 
+	/**
+	 * Sets a value.
+	 *
+	 * @param string $id The value identificator.
+	 * @param mixed  $value The value.
+	 */
 	public function set( $id, $value ) {
 		$this->load();
 		$this->settings[ $id ] = $value;
 	}
 
+	/**
+	 * Stores the settings to the database.
+	 */
 	public function persist() {
 
 		update_option( self::KEY, $this->settings );
 	}
 
+	/**
+	 * Resets the onboarding.
+	 *
+	 * @return bool
+	 */
 	public function reset(): bool {
 		$this->load();
-		$fieldsToReset = array(
+		$fields_to_reset = array(
 			'enabled',
 			'dcc_gateway_enabled',
 			'intent',
@@ -50,13 +87,18 @@ class Settings implements ContainerInterface {
 			'client_secret',
 			'merchant_email',
 		);
-		foreach ( $fieldsToReset as $id ) {
+		foreach ( $fields_to_reset as $id ) {
 			$this->settings[ $id ] = null;
 		}
 
 		return true;
 	}
 
+	/**
+	 * Loads the settings.
+	 *
+	 * @return bool
+	 */
 	private function load(): bool {
 
 		if ( $this->settings ) {

modules.local/ppcp-wc-gateway/src/Settings/class-settingslistener.php

@@ -0,0 +1,277 @@
+<?php
+/**
+ * Listens to requests and updates the settings if necessary.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Settings
+ */
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\WcGateway\Settings;
+
+use Inpsyde\PayPalCommerce\ApiClient\Authentication\PayPalBearer;
+use Inpsyde\PayPalCommerce\Onboarding\State;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\CreditCardGateway;
+use Inpsyde\PayPalCommerce\WcGateway\Gateway\PayPalGateway;
+use Inpsyde\PayPalCommerce\Webhooks\WebhookRegistrar;
+use Psr\SimpleCache\CacheInterface;
+
+/**
+ * Class SettingsListener
+ */
+class SettingsListener {
+
+
+	public const NONCE = 'ppcp-settings';
+
+	/**
+	 * The Settings.
+	 *
+	 * @var Settings
+	 */
+	private $settings;
+
+	/**
+	 * Array contains the setting fields.
+	 *
+	 * @var array
+	 */
+	private $setting_fields;
+
+	/**
+	 * The Webhook Registrar.
+	 *
+	 * @var WebhookRegistrar
+	 */
+	private $webhook_registrar;
+
+	/**
+	 * The Cache.
+	 *
+	 * @var CacheInterface
+	 */
+	private $cache;
+
+	/**
+	 * The State.
+	 *
+	 * @var State
+	 */
+	private $state;
+
+	/**
+	 * SettingsListener constructor.
+	 *
+	 * @param Settings         $settings The settings.
+	 * @param array            $setting_fields The setting fields.
+	 * @param WebhookRegistrar $webhook_registrar The Webhook Registrar.
+	 * @param CacheInterface   $cache The Cache.
+	 * @param State            $state The state.
+	 */
+	public function __construct(
+		Settings $settings,
+		array $setting_fields,
+		WebhookRegistrar $webhook_registrar,
+		CacheInterface $cache,
+		State $state
+	) {
+
+		$this->settings          = $settings;
+		$this->setting_fields    = $setting_fields;
+		$this->webhook_registrar = $webhook_registrar;
+		$this->cache             = $cache;
+		$this->state             = $state;
+	}
+
+	/**
+	 * Listens to the request.
+	 *
+	 * @throws \Inpsyde\PayPalCommerce\WcGateway\Exception\NotFoundException When a setting was not found.
+	 * @throws \Psr\SimpleCache\InvalidArgumentException  When the argument was invalid.
+	 */
+	public function listen() {
+
+		if ( ! $this->is_valid_update_request() ) {
+			return;
+		}
+
+		/**
+		 * Nonce verification has been done in is_valid_update_request().
+		 *
+		 * phpcs:disable WordPress.Security.NonceVerification.Missing
+		 * phpcs:disable WordPress.Security.NonceVerification.Recommended
+		 */
+		if ( isset( $_POST['save'] ) && sanitize_text_field( wp_unslash( $_POST['save'] ) ) === 'reset' ) {
+			$this->settings->reset();
+			$this->settings->persist();
+			$this->webhook_registrar->unregister();
+			if ( $this->cache->has( PayPalBearer::CACHE_KEY ) ) {
+				$this->cache->delete( PayPalBearer::CACHE_KEY );
+			}
+			return;
+		}
+
+		/**
+		 * Sanitization is done in retrieve_settings_from_raw_data().
+		 *
+		 * phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
+		 */
+		$raw_data = ( isset( $_POST['ppcp'] ) ) ? (array) wp_unslash( $_POST['ppcp'] ) : array();
+		// phpcs:enable phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
+		$settings = $this->retrieve_settings_from_raw_data( $raw_data );
+		if ( isset( $_GET['section'] ) && PayPalGateway::ID === $_GET['section'] ) {
+			$settings['enabled'] = isset( $_POST['woocommerce_ppcp-gateway_enabled'] )
+				&& 1 === absint( $_POST['woocommerce_ppcp-gateway_enabled'] );
+		}
+		if ( isset( $_GET['section'] ) && CreditCardGateway::ID === $_GET['section'] ) {
+			$dcc_enabled_post_key            = 'woocommerce_ppcp-credit-card-gateway_enabled';
+			$settings['dcc_gateway_enabled'] = isset( $_POST[ $dcc_enabled_post_key ] )
+				&& 1 === absint( $_POST[ $dcc_enabled_post_key ] );
+		}
+		$this->maybe_register_webhooks( $settings );
+
+		foreach ( $settings as $id => $value ) {
+			$this->settings->set( $id, $value );
+		}
+		$this->settings->persist();
+		if ( $this->cache->has( PayPalBearer::CACHE_KEY ) ) {
+			$this->cache->delete( PayPalBearer::CACHE_KEY );
+		}
+
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+		// phpcs:enable WordPress.Security.NonceVerification.Recommended
+	}
+
+	/**
+	 * Depending on the settings change, we might need to register or unregister the Webhooks at PayPal.
+	 *
+	 * @param array $settings The settings.
+	 *
+	 * @throws \Inpsyde\PayPalCommerce\WcGateway\Exception\NotFoundException If a setting hasn't been found.
+	 */
+	private function maybe_register_webhooks( array $settings ) {
+
+		if ( ! $this->settings->has( 'client_id' ) && $settings['client_id'] ) {
+			$this->webhook_registrar->register();
+		}
+		if ( $this->settings->has( 'client_id' ) && $this->settings->get( 'client_id' ) ) {
+			$current_secret = $this->settings->has( 'client_secret' ) ?
+				$this->settings->get( 'client_secret' ) : '';
+			if (
+				$settings['client_id'] !== $this->settings->get( 'client_id' )
+				|| $settings['client_secret'] !== $current_secret
+			) {
+				$this->webhook_registrar->unregister();
+				$this->webhook_registrar->register();
+			}
+		}
+	}
+
+	/**
+	 * Sanitizes the settings input data and returns a valid settings array.
+	 *
+	 * @param array $raw_data The Raw data.
+	 *
+	 * @return array
+	 */
+	private function retrieve_settings_from_raw_data( array $raw_data ): array {
+		/**
+		 * Nonce verification has already been done.
+		 * phpcs:disable WordPress.Security.NonceVerification.Recommended
+		 */
+		if ( ! isset( $_GET['section'] ) ) {
+			return array();
+		}
+		$settings = array();
+		foreach ( $this->setting_fields as $key => $config ) {
+			if ( ! in_array( $this->state->currentState(), $config['screens'], true ) ) {
+				continue;
+			}
+			if (
+				'dcc' === $config['gateway']
+				&& sanitize_text_field( wp_unslash( $_GET['section'] ) ) !== 'ppcp-credit-card-gateway'
+			) {
+				continue;
+			}
+			if (
+			'paypal' === $config['gateway']
+				&& sanitize_text_field( wp_unslash( $_GET['section'] ) ) !== 'ppcp-gateway'
+			) {
+				continue;
+			}
+			switch ( $config['type'] ) {
+				case 'checkbox':
+					$settings[ $key ] = isset( $raw_data[ $key ] );
+					break;
+				case 'text':
+				case 'ppcp-text-input':
+				case 'ppcp-password':
+					$settings[ $key ] = isset( $raw_data[ $key ] ) ? sanitize_text_field( $raw_data[ $key ] ) : '';
+					break;
+				case 'password':
+					if ( empty( $raw_data[ $key ] ) ) {
+						break;
+					}
+					$settings[ $key ] = sanitize_text_field( $raw_data[ $key ] );
+					break;
+				case 'ppcp-multiselect':
+					$values         = isset( $raw_data[ $key ] ) ? (array) $raw_data[ $key ] : array();
+					$values_to_save = array();
+					foreach ( $values as $index => $raw_value ) {
+						$value = sanitize_text_field( $raw_value );
+						if ( ! in_array( $value, array_keys( $config['options'] ), true ) ) {
+							continue;
+						}
+						$values_to_save[] = $value;
+					}
+					$settings[ $key ] = $values_to_save;
+					break;
+				case 'select':
+					$options          = array_keys( $config['options'] );
+					$settings[ $key ] = isset( $raw_data[ $key ] ) && in_array(
+						sanitize_text_field( $raw_data[ $key ] ),
+						$options,
+						true
+					) ? sanitize_text_field( $raw_data[ $key ] ) : null;
+					break;
+			}
+		}
+
+		// phpcs:enable WordPress.Security.NonceVerification.Recommended
+		return $settings;
+	}
+
+	/**
+	 * Evaluates whether the current request is supposed to update the settings.
+	 *
+	 * @return bool
+	 */
+	private function is_valid_update_request(): bool {
+
+		if (
+			! isset( $_REQUEST['section'] )
+			|| ! in_array(
+				sanitize_text_field( wp_unslash( $_REQUEST['section'] ) ),
+				array( 'ppcp-gateway', 'ppcp-credit-card-gateway' ),
+				true
+			)
+		) {
+			return false;
+		}
+
+		if ( ! current_user_can( 'manage_options' ) ) {
+			return false;
+		}
+
+		if (
+			! isset( $_POST['ppcp-nonce'] )
+			|| ! wp_verify_nonce(
+				sanitize_text_field( wp_unslash( $_POST['ppcp-nonce'] ) ),
+				self::NONCE
+			)
+		) {
+			return false;
+		}
+		return true;
+	}
+}

modules.local/ppcp-wc-gateway/src/Settings/class-settingsrenderer.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * Renders the settings of the Gateways.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway\Settings
+ */
 
 declare(strict_types=1);
 
@@ -9,42 +14,92 @@ use Inpsyde\PayPalCommerce\Button\Helper\MessagesApply;
 use Inpsyde\PayPalCommerce\Onboarding\State;
 use Psr\Container\ContainerInterface;
 
+/**
+ * Class SettingsRenderer
+ */
 class SettingsRenderer {
 
-
+	/**
+	 * The settings.
+	 *
+	 * @var ContainerInterface
+	 */
 	private $settings;
+
+	/**
+	 * The current onboarding state.
+	 *
+	 * @var State
+	 */
 	private $state;
+
+	/**
+	 * The setting fields.
+	 *
+	 * @var array
+	 */
 	private $fields;
-	private $dccApplies;
+
-	private $messagesApply;
+	/**
+	 * Helper to see if DCC gateway can be shown.
+	 *
+	 * @var DccApplies
+	 */
+	private $dcc_applies;
+
+	/**
+	 * Helper to see if messages are supposed to show up.
+	 *
+	 * @var MessagesApply
+	 */
+	private $messages_apply;
+
+	/**
+	 * SettingsRenderer constructor.
+	 *
+	 * @param ContainerInterface $settings The Settings.
+	 * @param State              $state                 The current state.
+	 * @param array              $fields                The setting fields.
+	 * @param DccApplies         $dcc_applies       Whether DCC gateway can be shown.
+	 * @param MessagesApply      $messages_apply Whether messages can be shown.
+	 */
 	public function __construct(
 		ContainerInterface $settings,
 		State $state,
 		array $fields,
-		DccApplies $dccApplies,
+		DccApplies $dcc_applies,
-		MessagesApply $messagesApply
+		MessagesApply $messages_apply
 	) {
 
-		$this->settings      = $settings;
+		$this->settings       = $settings;
-		$this->state         = $state;
+		$this->state          = $state;
-		$this->fields        = $fields;
+		$this->fields         = $fields;
-		$this->dccApplies    = $dccApplies;
+		$this->dcc_applies    = $dcc_applies;
-		$this->messagesApply = $messagesApply;
+		$this->messages_apply = $messages_apply;
 	}
 
-    //phpcs:disable Inpsyde.CodeQuality.ArgumentTypeDeclaration.NoArgumentType
+	/**
-	public function renderMultiSelect( $field, $key, $config, $value ): string {
+	 * Renders the multiselect field.
+	 *
+	 * @param string $field The current field HTML.
+	 * @param string $key   The current key.
+	 * @param array  $config The configuration array.
+	 * @param string $value The current value.
+	 *
+	 * @return string
+	 */
+	public function render_multiselect( $field, $key, $config, $value ): string {
 
-		if ( $config['type'] !== 'ppcp-multiselect' ) {
+		if ( 'ppcp-multiselect' !== $config['type'] ) {
 			return $field;
 		}
 
 		$options = array();
-		foreach ( $config['options'] as $optionKey => $optionValue ) {
+		foreach ( $config['options'] as $option_key => $option_value ) {
-			$selected = ( in_array( $optionKey, $value, true ) ) ? 'selected="selected"' : '';
+			$selected = ( in_array( $option_key, $value, true ) ) ? 'selected="selected"' : '';
 
-			$options[] = '<option value="' . esc_attr( $optionKey ) . '" ' . $selected . '>' .
+			$options[] = '<option value="' . esc_attr( $option_key ) . '" ' . $selected . '>' .
-			esc_html( $optionValue ) .
+			esc_html( $option_value ) .
 			'</option>';
 		}
 
@@ -62,9 +117,19 @@ class SettingsRenderer {
 		return $html;
 	}
 
-	public function renderPassword( $field, $key, $config, $value ): string {
+	/**
+	 * Renders the password input field.
+	 *
+	 * @param string $field The current field HTML.
+	 * @param string $key   The current key.
+	 * @param array  $config The configuration array.
+	 * @param string $value The current value.
+	 *
+	 * @return string
+	 */
+	public function render_password( $field, $key, $config, $value ): string {
 
-		if ( $config['type'] !== 'ppcp-password' ) {
+		if ( 'ppcp-password' !== $config['type'] ) {
 			return $field;
 		}
 
@@ -84,9 +149,20 @@ class SettingsRenderer {
 		return $html;
 	}
 
-	public function renderTextInput( $field, $key, $config, $value ): string {
 
-		if ( $config['type'] !== 'ppcp-text-input' ) {
+	/**
+	 * Renders the text input field.
+	 *
+	 * @param string $field The current field HTML.
+	 * @param string $key   The current key.
+	 * @param array  $config The configuration array.
+	 * @param string $value The current value.
+	 *
+	 * @return string
+	 */
+	public function render_text_input( $field, $key, $config, $value ): string {
+
+		if ( 'ppcp-text-input' !== $config['type'] ) {
 			return $field;
 		}
 
@@ -106,9 +182,19 @@ class SettingsRenderer {
 		return $html;
 	}
 
-	public function renderHeading( $field, $key, $config, $value ): string {
+	/**
+	 * Renders the heading field.
+	 *
+	 * @param string $field The current field HTML.
+	 * @param string $key   The current key.
+	 * @param array  $config The configuration array.
+	 * @param string $value The current value.
+	 *
+	 * @return string
+	 */
+	public function render_heading( $field, $key, $config, $value ): string {
 
-		if ( $config['type'] !== 'ppcp-heading' ) {
+		if ( 'ppcp-heading' !== $config['type'] ) {
 			return $field;
 		}
 
@@ -120,11 +206,13 @@ class SettingsRenderer {
 
 		return $html;
 	}
-    //phpcs:enable Inpsyde.CodeQuality.ArgumentTypeDeclaration.NoArgumentType
 
-    //phpcs:disable Inpsyde.CodeQuality.NestingLevel.High
+	/**
-    //phpcs:disable Inpsyde.CodeQuality.FunctionLength.TooLong
+	 * Renders the settings.
-	public function render( bool $isDcc ) {
+	 *
+	 * @param bool $is_dcc Whether it is the DCC gateway or not.
+	 */
+	public function render( bool $is_dcc ) {
 
 		$nonce = wp_create_nonce( SettingsListener::NONCE );
 		?>
@@ -134,21 +222,21 @@ class SettingsRenderer {
 			if ( ! in_array( $this->state->currentState(), $config['screens'], true ) ) {
 				continue;
 			}
-			if ( $isDcc && ! in_array( $config['gateway'], array( 'all', 'dcc' ), true ) ) {
+			if ( $is_dcc && ! in_array( $config['gateway'], array( 'all', 'dcc' ), true ) ) {
 				continue;
 			}
-			if ( ! $isDcc && ! in_array( $config['gateway'], array( 'all', 'paypal' ), true ) ) {
+			if ( ! $is_dcc && ! in_array( $config['gateway'], array( 'all', 'paypal' ), true ) ) {
 				continue;
 			}
 			if (
 				in_array( 'dcc', $config['requirements'], true )
-				&& ! $this->dccApplies->forCountryCurrency()
+				&& ! $this->dcc_applies->forCountryCurrency()
 			) {
 				continue;
 			}
 			if (
 				in_array( 'messages', $config['requirements'], true )
-				&& ! $this->messagesApply->forCountry()
+				&& ! $this->messages_apply->forCountry()
 			) {
 				continue;
 			}
@@ -156,12 +244,12 @@ class SettingsRenderer {
 			$key          = 'ppcp[' . $field . ']';
 			$id           = 'ppcp-' . $field;
 			$config['id'] = $id;
-			$thTd         = $config['type'] !== 'ppcp-heading' ? 'td' : 'th';
+			$th_td        = 'ppcp-heading' !== $config['type'] ? 'td' : 'th';
-			$colspan      = $config['type'] !== 'ppcp-heading' ? 1 : 2;
+			$colspan      = 'ppcp-heading' !== $config['type'] ? 1 : 2;
 
 			?>
 		<tr valign="top" id="<?php echo esc_attr( 'field-' . $field ); ?>">
-			<?php if ( $config['type'] !== 'ppcp-heading' ) : ?>
+			<?php if ( 'ppcp-heading' !== $config['type'] ) : ?>
 			<th>
 				<label
 					for="<?php echo esc_attr( $id ); ?>"
@@ -177,36 +265,38 @@ class SettingsRenderer {
 				?>
 			</th>
 			<?php endif; ?>
-			<<?php echo esc_attr( $thTd ); ?> colspan="<?php echo (int) $colspan; ?>">
+			<<?php echo esc_attr( $th_td ); ?> colspan="<?php echo (int) $colspan; ?>">
 						<?php
-						$config['type'] === 'ppcp-text' ?
+						'ppcp-text' === $config['type'] ?
-						$this->renderText( $config )
+						$this->render_text( $config )
 						: woocommerce_form_field( $key, $config, $value );
 						?>
-			</<?php echo esc_attr( $thTd ); ?>>
+			</<?php echo esc_attr( $th_td ); ?>>
 		</tr>
 			<?php
 		endforeach;
 
-		if ( $isDcc ) :
+		if ( $is_dcc ) :
 			?>
 		<tr>
 			<th><?php esc_html_e( '3D Secure', 'woocommerce-paypal-commerce-gateway' ); ?></th>
 			<td>
 				<p>
 					<?php
-					 /**
+					/**
-					  * @todo: Provide link to documentation.
+					 * We still need to provide a docs link.
-					  */
+					 *
+					 * @todo: Provide link to documentation.
+					 */
 					echo wp_kses_post(
 						sprintf(
-							 // translators: %1$s and %2$s is a link tag.
+							// translators: %1$s and %2$s is a link tag.
 							__(
 								'3D Secure benefits cardholders and merchants by providing
                                   an additional layer of verification using Verified by Visa,
                                   MasterCard SecureCode and American Express SafeKey.
                                   %1$sLearn more about 3D Secure.%2$s',
-								'woocommerce - paypal - commerce - gateway'
+								'woocommerce-paypal-commerce-gateway'
 							),
 							'<a href = "#">',
 							'</a>'
@@ -219,9 +309,13 @@ class SettingsRenderer {
 			<?php
 		endif;
 	}
-    //phpcs:enable Inpsyde.CodeQuality.NestingLevel.High
 
-	private function renderText( array $config ) {
+	/**
+	 * Renders the ppcp-text field given a configuration.
+	 *
+	 * @param array $config The configuration array.
+	 */
+	private function render_text( array $config ) {
 		echo wp_kses_post( $config['text'] );
 		if ( isset( $config['hidden'] ) ) {
 			$value = $this->settings->has( $config['hidden'] ) ?

modules.local/ppcp-wc-gateway/src/class-wcgatewaymodule.php

@@ -1,4 +1,9 @@
 <?php
+/**
+ * The Gateway module.
+ *
+ * @package Inpsyde\PayPalCommerce\WcGateway
+ */
 
 declare(strict_types=1);
 
@@ -9,7 +14,6 @@ use Dhii\Modular\Module\ModuleInterface;
 use Inpsyde\PayPalCommerce\AdminNotices\Repository\Repository;
 use Inpsyde\PayPalCommerce\ApiClient\Helper\DccApplies;
 use Inpsyde\PayPalCommerce\ApiClient\Repository\PayPalRequestIdRepository;
-use Inpsyde\PayPalCommerce\WcGateway\Admin\OrderDetail;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\OrderTablePaymentStatusColumn;
 use Inpsyde\PayPalCommerce\WcGateway\Admin\PaymentStatusOrderDetail;
 use Inpsyde\PayPalCommerce\WcGateway\Checkout\CheckoutPayPalAddressPreset;
@@ -23,8 +27,16 @@ use Inpsyde\PayPalCommerce\WcGateway\Settings\SettingsRenderer;
 use Interop\Container\ServiceProviderInterface;
 use Psr\Container\ContainerInterface;
 
+/**
+ * Class WcGatewayModule
+ */
 class WcGatewayModule implements ModuleInterface {
 
+	/**
+	 * Setup the module.
+	 *
+	 * @return ServiceProviderInterface
+	 */
 	public function setup(): ServiceProviderInterface {
 		return new ServiceProvider(
 			require __DIR__ . '/../services.php',
@@ -32,28 +44,35 @@ class WcGatewayModule implements ModuleInterface {
 		);
 	}
 
+	/**
+	 * Runs the module.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
 	public function run( ContainerInterface $container ) {
-		$this->registerPaymentGateway( $container );
+		$this->register_payment_gateways( $container );
-		$this->registerOrderFunctionality( $container );
+		$this->register_order_functionality( $container );
-		$this->registerColumns( $container );
+		$this->register_columns( $container );
-		$this->registerCheckoutAddressPreset( $container );
+		$this->register_checkout_paypal_address_preset( $container );
-		$this->ajaxGatewayEnabler( $container );
+		$this->ajax_gateway_enabler( $container );
 
 		add_filter(
 			Repository::NOTICES_FILTER,
 			static function ( $notices ) use ( $container ): array {
 				$notice = $container->get( 'wcgateway.notice.connect' );
 				/**
+				 * The Connect Admin Notice object.
+				 *
 				 * @var ConnectAdminNotice $notice
 				 */
-				$connectMessage = $notice->connectMessage();
+				$connect_message = $notice->connect_message();
-				if ( $connectMessage ) {
+				if ( $connect_message ) {
-					$notices[] = $connectMessage;
+					$notices[] = $connect_message;
 				}
-				$authorizeOrderAction = $container->get( 'wcgateway.notice.authorize-order-action' );
+				$authorize_order_action = $container->get( 'wcgateway.notice.authorize-order-action' );
-				$authorizedMessage    = $authorizeOrderAction->message();
+				$authorized_message     = $authorize_order_action->message();
-				if ( $authorizedMessage ) {
+				if ( $authorized_message ) {
-					$notices[] = $authorizedMessage;
+					$notices[] = $authorized_message;
 				}
 
 				return $notices;
@@ -74,14 +93,21 @@ class WcGatewayModule implements ModuleInterface {
 			static function () use ( $container ) {
 				$endpoint = $container->get( 'wcgateway.endpoint.return-url' );
 				/**
+				 * The Endpoint.
+				 *
 				 * @var ReturnUrlEndpoint $endpoint
 				 */
-				$endpoint->handleRequest();
+				$endpoint->handle_request();
 			}
 		);
 	}
 
-	private function ajaxGatewayEnabler( ContainerInterface $container ) {
+	/**
+	 * Adds the functionality to listen to the ajax enable gateway switch.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
+	private function ajax_gateway_enabler( ContainerInterface $container ) {
 		add_action(
 			'wp_ajax_woocommerce_toggle_gateway_enabled',
 			static function () use ( $container ) {
@@ -97,11 +123,13 @@ class WcGatewayModule implements ModuleInterface {
 				}
 
 				/**
+				 * The settings.
+				 *
 				 * @var Settings $settings
 				 */
 				$settings = $container->get( 'wcgateway.settings' );
-				$key      = $_POST['gateway_id'] === PayPalGateway::ID ? 'enabled' : '';
+				$key      = PayPalGateway::ID === $_POST['gateway_id'] ? 'enabled' : '';
-				if ( $_POST['gateway_id'] === CreditCardGateway::ID ) {
+				if ( CreditCardGateway::ID === $_POST['gateway_id'] ) {
 					$key = 'dcc_gateway_enabled';
 				}
 				if ( ! $key ) {
@@ -118,17 +146,24 @@ class WcGatewayModule implements ModuleInterface {
 		);
 	}
 
-	private function registerPaymentGateWay( ContainerInterface $container ) {
+	/**
+	 * Registers the payment gateways.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
+	private function register_payment_gateways( ContainerInterface $container ) {
 
 		add_filter(
 			'woocommerce_payment_gateways',
 			static function ( $methods ) use ( $container ): array {
-				$methods[]  = $container->get( 'wcgateway.paypal-gateway' );
+				$methods[]   = $container->get( 'wcgateway.paypal-gateway' );
-				$dccApplies = $container->get( 'api.helpers.dccapplies' );
+				$dcc_applies = $container->get( 'api.helpers.dccapplies' );
 				/**
-				 * @var DccApplies $dccApplies
+				 * The DCC Applies object.
+				 *
+				 * @var DccApplies $dcc_applies
 				 */
-				if ( $dccApplies->forCountryCurrency() ) {
+				if ( $dcc_applies->forCountryCurrency() ) {
 					$methods[] = $container->get( 'wcgateway.credit-card-gateway' );
 				}
 				return (array) $methods;
@@ -148,12 +183,14 @@ class WcGatewayModule implements ModuleInterface {
 			static function ( $field, $key, $args, $value ) use ( $container ) {
 				$renderer = $container->get( 'wcgateway.settings.render' );
 				/**
+				 * The Settings Renderer object.
+				 *
 				 * @var SettingsRenderer $renderer
 				 */
-				$field = $renderer->renderMultiSelect( $field, $key, $args, $value );
+				$field = $renderer->render_multiselect( $field, $key, $args, $value );
-				$field = $renderer->renderPassword( $field, $key, $args, $value );
+				$field = $renderer->render_password( $field, $key, $args, $value );
-				$field = $renderer->renderTextInput( $field, $key, $args, $value );
+				$field = $renderer->render_text_input( $field, $key, $args, $value );
-				$field = $renderer->renderHeading( $field, $key, $args, $value );
+				$field = $renderer->render_heading( $field, $key, $args, $value );
 				return $field;
 			},
 			10,
@@ -165,6 +202,8 @@ class WcGatewayModule implements ModuleInterface {
 			static function ( $methods ) use ( $container ): array {
 				$disabler = $container->get( 'wcgateway.disabler' );
 				/**
+				 * The Gateay disabler.
+				 *
 				 * @var DisableGateways $disabler
 				 */
 				return $disabler->handler( (array) $methods );
@@ -172,39 +211,53 @@ class WcGatewayModule implements ModuleInterface {
 		);
 	}
 
-	private function registerOrderFunctionality( ContainerInterface $container ) {
+	/**
+	 * Registers the authorize order functionality.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
+	private function register_order_functionality( ContainerInterface $container ) {
 		add_filter(
 			'woocommerce_order_actions',
-			static function ( $orderActions ): array {
+			static function ( $order_actions ): array {
-				$orderActions['ppcp_authorize_order'] = __(
+				$order_actions['ppcp_authorize_order'] = __(
 					'Capture authorized PayPal payment',
 					'woocommerce-paypal-commerce-gateway'
 				);
-				return $orderActions;
+				return $order_actions;
 			}
 		);
 
 		add_action(
 			'woocommerce_order_action_ppcp_authorize_order',
-			static function ( \WC_Order $wcOrder ) use ( $container ) {
+			static function ( \WC_Order $wc_order ) use ( $container ) {
 				/**
+				 * The PayPal Gateway.
+				 *
 				 * @var PayPalGateway $gateway
 				 */
 				$gateway = $container->get( 'wcgateway.paypal-gateway' );
-				$gateway->captureAuthorizedPayment( $wcOrder );
+				$gateway->capture_authorized_payment( $wc_order );
 			}
 		);
 	}
 
-	private function registerColumns( ContainerInterface $container ) {
+	/**
+	 * Registers the additional columns on the order list page.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
+	private function register_columns( ContainerInterface $container ) {
 		add_action(
 			'woocommerce_order_actions_start',
-			static function ( $wcOrderId ) use ( $container ) {
+			static function ( $wc_order_id ) use ( $container ) {
 				/**
+				 * The Payment Status Order Detail.
+				 *
 				 * @var PaymentStatusOrderDetail $class
 				 */
 				$class = $container->get( 'wcgateway.admin.order-payment-status' );
-				$class->render( intval( $wcOrderId ) );
+				$class->render( intval( $wc_order_id ) );
 			}
 		);
 
@@ -212,41 +265,54 @@ class WcGatewayModule implements ModuleInterface {
 			'manage_edit-shop_order_columns',
 			static function ( $columns ) use ( $container ) {
 				/**
-				 * @var OrderTablePaymentStatusColumn $paymentStatusColumn
+				 * The Order Table Payment Status object.
+				 *
+				 * @var OrderTablePaymentStatusColumn $payment_status_column
 				 */
-				$paymentStatusColumn = $container->get( 'wcgateway.admin.orders-payment-status-column' );
+				$payment_status_column = $container->get( 'wcgateway.admin.orders-payment-status-column' );
-				return $paymentStatusColumn->register( $columns );
+				return $payment_status_column->register( $columns );
 			}
 		);
 
 		add_action(
 			'manage_shop_order_posts_custom_column',
-			static function ( $column, $wcOrderId ) use ( $container ) {
+			static function ( $column, $wc_order_id ) use ( $container ) {
 				/**
-				 * @var OrderTablePaymentStatusColumn $paymentStatusColumn
+				 * The column object.
+				 *
+				 * @var OrderTablePaymentStatusColumn $payment_status_column
 				 */
-				$paymentStatusColumn = $container->get( 'wcgateway.admin.orders-payment-status-column' );
+				$payment_status_column = $container->get( 'wcgateway.admin.orders-payment-status-column' );
-				$paymentStatusColumn->render( $column, intval( $wcOrderId ) );
+				$payment_status_column->render( $column, intval( $wc_order_id ) );
 			},
 			10,
 			2
 		);
 	}
 
-	private function registerCheckoutAddressPreset( ContainerInterface $container ): void {
+	/**
+	 * Registers the PayPal Address preset to overwrite Shipping in checkout.
+	 *
+	 * @param ContainerInterface $container The container.
+	 */
+	private function register_checkout_paypal_address_preset( ContainerInterface $container ): void {
 		add_filter(
 			'woocommerce_checkout_get_value',
 			static function ( ...$args ) use ( $container ) {
 
-				// Its important to not instantiate the service too early as it
+				/**
-				// depends on SessionHandler and WooCommerce Session
+				 * Its important to not instantiate the service too early as it
+				 * depends on SessionHandler and WooCommerce Session.
+				 */
 
 				/**
+				 * The CheckoutPayPalAddressPreset object.
+				 *
 				 * @var CheckoutPayPalAddressPreset $service
 				 */
 				$service = $container->get( 'wcgateway.checkout.address-preset' );
 
-				return $service->filterCheckoutFiled( ...$args );
+				return $service->filter_checkout_field( ...$args );
 			},
 			10,
 			2

tests/PHPUnit/WcGateway/Checkout/CheckoutPayPalAddressPresetTest.php

@@ -40,7 +40,7 @@ class CheckoutPayPalAddressPresetTest extends TestCase
 
         self::assertSame(
             $expected,
-            $testee->filterCheckoutFiled(null, $fieldId)
+            $testee->filter_checkout_field(null, $fieldId)
         );
     }
 

tests/PHPUnit/WcGateway/Gateway/WcGatewayTest.php

@@ -174,7 +174,7 @@ class WcGatewayTest extends TestCase
             $sessionHandler
         );
 
-        $this->assertTrue($testee->captureAuthorizedPayment($wcOrder));
+        $this->assertTrue($testee->capture_authorized_payment($wcOrder));
     }
 
     public function testCaptureAuthorizedPaymentHasAlreadyBeenCaptured() {
@@ -220,7 +220,7 @@ class WcGatewayTest extends TestCase
             $sessionHandler
         );
 
-        $this->assertTrue($testee->captureAuthorizedPayment($wcOrder));
+        $this->assertTrue($testee->capture_authorized_payment($wcOrder));
     }
 
     /**
@@ -259,7 +259,7 @@ class WcGatewayTest extends TestCase
             $sessionHandler
         );
 
-        $this->assertFalse($testee->captureAuthorizedPayment($wcOrder));
+        $this->assertFalse($testee->capture_authorized_payment($wcOrder));
     }
 
     public function dataForTestCaptureAuthorizedPaymentNoActionableFailures() : array

tests/PHPUnit/WcGateway/Processor/AuthorizedPaymentsProcessorTest.php

@@ -63,7 +63,7 @@ class AuthorizedPaymentsProcessorTest extends TestCase
             ->with(PayPalGateway::ORDER_ID_META_KEY)
             ->andReturn($orderId);
         $this->assertTrue($testee->process($wcOrder));
-        $this->assertEquals(AuthorizedPaymentsProcessor::SUCCESSFUL, $testee->lastStatus());
+        $this->assertEquals(AuthorizedPaymentsProcessor::SUCCESSFUL, $testee->last_status());
     }
 
     public function testInaccessible() {
@@ -82,7 +82,7 @@ class AuthorizedPaymentsProcessorTest extends TestCase
             ->with(PayPalGateway::ORDER_ID_META_KEY)
             ->andReturn($orderId);
         $this->assertFalse($testee->process($wcOrder));
-        $this->assertEquals(AuthorizedPaymentsProcessor::INACCESSIBLE, $testee->lastStatus());
+        $this->assertEquals(AuthorizedPaymentsProcessor::INACCESSIBLE, $testee->last_status());
     }
 
     public function testNotFound() {
@@ -101,7 +101,7 @@ class AuthorizedPaymentsProcessorTest extends TestCase
             ->with(PayPalGateway::ORDER_ID_META_KEY)
             ->andReturn($orderId);
         $this->assertFalse($testee->process($wcOrder));
-        $this->assertEquals(AuthorizedPaymentsProcessor::NOT_FOUND, $testee->lastStatus());
+        $this->assertEquals(AuthorizedPaymentsProcessor::NOT_FOUND, $testee->last_status());
     }
 
     public function testCaptureFails() {
@@ -149,7 +149,7 @@ class AuthorizedPaymentsProcessorTest extends TestCase
             ->with(PayPalGateway::ORDER_ID_META_KEY)
             ->andReturn($orderId);
         $this->assertFalse($testee->process($wcOrder));
-        $this->assertEquals(AuthorizedPaymentsProcessor::FAILED, $testee->lastStatus());
+        $this->assertEquals(AuthorizedPaymentsProcessor::FAILED, $testee->last_status());
     }
 
     public function testAllAreCaptured() {
@@ -197,6 +197,6 @@ class AuthorizedPaymentsProcessorTest extends TestCase
             ->with(PayPalGateway::ORDER_ID_META_KEY)
             ->andReturn($orderId);
         $this->assertFalse($testee->process($wcOrder));
-        $this->assertEquals(AuthorizedPaymentsProcessor::ALREADY_CAPTURED, $testee->lastStatus());
+        $this->assertEquals(AuthorizedPaymentsProcessor::ALREADY_CAPTURED, $testee->last_status());
     }
 }

tests/PHPUnit/WcGateway/Processor/OrderProcessorTest.php

@@ -266,7 +266,7 @@ class OrderProcessorTest extends TestCase
                 $orderIntent
             );
         $this->assertFalse($testee->process($wcOrder, $woocommerce));
-        $this->assertNotEmpty($testee->lastError());
+        $this->assertNotEmpty($testee->last_error());
     }