woocommerce / woocommerce-gateway-stripe

includes/compat/class-wc-stripe-compat.php

Spacing +197 added lines, -197 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -15,24 +15,24 @@ 
 	public function __construct() {
 		parent::__construct();
 
-		if ( class_exists( 'WC_Subscriptions_Order' ) ) {
-			add_action( 'woocommerce_scheduled_subscription_payment_' . $this->id, array( $this, 'scheduled_subscription_payment' ), 10, 2 );
-			add_action( 'wcs_resubscribe_order_created', array( $this, 'delete_resubscribe_meta' ), 10 );
-			add_action( 'wcs_renewal_order_created', array( $this, 'delete_renewal_meta' ), 10 );
-			add_action( 'woocommerce_subscription_failing_payment_method_updated_stripe', array( $this, 'update_failing_payment_method' ), 10, 2 );
+		if (class_exists('WC_Subscriptions_Order')) {
+			add_action('woocommerce_scheduled_subscription_payment_' . $this->id, array($this, 'scheduled_subscription_payment'), 10, 2);
+			add_action('wcs_resubscribe_order_created', array($this, 'delete_resubscribe_meta'), 10);
+			add_action('wcs_renewal_order_created', array($this, 'delete_renewal_meta'), 10);
+			add_action('woocommerce_subscription_failing_payment_method_updated_stripe', array($this, 'update_failing_payment_method'), 10, 2);
 
 			// display the credit card used for a subscription in the "My Subscriptions" table
-			add_filter( 'woocommerce_my_subscriptions_payment_method', array( $this, 'maybe_render_subscription_payment_method' ), 10, 2 );
+			add_filter('woocommerce_my_subscriptions_payment_method', array($this, 'maybe_render_subscription_payment_method'), 10, 2);
 
 			// allow store managers to manually set Stripe as the payment method on a subscription
-			add_filter( 'woocommerce_subscription_payment_meta', array( $this, 'add_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'woocommerce_subscription_validate_payment_meta', array( $this, 'validate_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'wc_stripe_display_save_payment_method_checkbox', array( $this, 'maybe_hide_save_checkbox' ) );
-			add_filter( 'wc_stripe_payment_metadata', array( $this, 'add_subscription_meta_data' ), 10, 2 );
+			add_filter('woocommerce_subscription_payment_meta', array($this, 'add_subscription_payment_meta'), 10, 2);
+			add_filter('woocommerce_subscription_validate_payment_meta', array($this, 'validate_subscription_payment_meta'), 10, 2);
+			add_filter('wc_stripe_display_save_payment_method_checkbox', array($this, 'maybe_hide_save_checkbox'));
+			add_filter('wc_stripe_payment_metadata', array($this, 'add_subscription_meta_data'), 10, 2);
 		}
 
-		if ( class_exists( 'WC_Pre_Orders_Order' ) ) {
-			add_action( 'wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array( $this, 'process_pre_order_release_payment' ) );
+		if (class_exists('WC_Pre_Orders_Order')) {
+			add_action('wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array($this, 'process_pre_order_release_payment'));
 		}
 	}
 
@@ -43,8 +43,8 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function maybe_hide_save_checkbox( $display_tokenization ) {
-		if ( WC_Subscriptions_Cart::cart_contains_subscription() ) {
+	public function maybe_hide_save_checkbox($display_tokenization) {
+		if (WC_Subscriptions_Cart::cart_contains_subscription()) {
 			return false;
 		}
 
@@ -56,8 +56,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function has_subscription( $order_id ) {
-		return ( function_exists( 'wcs_order_contains_subscription' ) && ( wcs_order_contains_subscription( $order_id ) || wcs_is_subscription( $order_id ) || wcs_order_contains_renewal( $order_id ) ) );
+	public function has_subscription($order_id) {
+		return (function_exists('wcs_order_contains_subscription') && (wcs_order_contains_subscription($order_id) || wcs_is_subscription($order_id) || wcs_order_contains_renewal($order_id)));
 	}
 
 	/**
@@ -67,7 +67,7 @@ 
 	 * @return bool
 	 */
 	public function is_subs_change_payment() {
-		return ( isset( $_GET['pay_for_order'] ) && isset( $_GET['change_payment_method'] ) );
+		return (isset($_GET['pay_for_order']) && isset($_GET['change_payment_method']));
 	}
 
 	/**
@@ -75,8 +75,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function is_pre_order( $order_id ) {
-		return ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Order::order_contains_pre_order( $order_id ) );
+	public function is_pre_order($order_id) {
+		return (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Order::order_contains_pre_order($order_id));
 	}
 
 	/**
@@ -85,27 +85,27 @@ 
 	 * @since 4.0.4
 	 * @param int $order_id
 	 */
-	public function change_subs_payment_method( $order_id ) {
+	public function change_subs_payment_method($order_id) {
 		try {
-			$subscription    = wc_get_order( $order_id );
+			$subscription    = wc_get_order($order_id);
 			$source_object   = $this->get_source_object();
-			$prepared_source = $this->prepare_source( $source_object, get_current_user_id(), true );
+			$prepared_source = $this->prepare_source($source_object, get_current_user_id(), true);
 
 			// Check if we don't allow prepaid credit cards.
-			if ( ! apply_filters( 'wc_stripe_allow_prepaid_card', true ) ) {
-				if ( $source_object && 'token' === $source_object->object && 'prepaid' === $source_object->card->funding ) {
-					$localized_message = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-					throw new WC_Stripe_Exception( print_r( $source_object, true ), $localized_message );
+			if ( ! apply_filters('wc_stripe_allow_prepaid_card', true)) {
+				if ($source_object && 'token' === $source_object->object && 'prepaid' === $source_object->card->funding) {
+					$localized_message = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+					throw new WC_Stripe_Exception(print_r($source_object, true), $localized_message);
 				}
 			}
 
-			if ( empty( $prepared_source->source ) ) {
-				$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-				throw new WC_Stripe_Exception( print_r( $prepared_source, true ), $localized_message );
+			if (empty($prepared_source->source)) {
+				$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+				throw new WC_Stripe_Exception(print_r($prepared_source, true), $localized_message);
 			}
 
 			// Store source to order meta.
-			$this->save_source( $subscription, $prepared_source );
+			$this->save_source($subscription, $prepared_source);
 
 			/*
 			 * Check if card 3DS is required or optional with 3DS setting.
@@ -114,41 +114,41 @@ 
 			 * Note that if we need to save source, the original source must be first
 			 * attached to a customer in Stripe before it can be charged.
 			 */
-			if ( $this->is_3ds_required( $source_object ) ) {
+			if ($this->is_3ds_required($source_object)) {
 				$order    = $subscription->get_parent();
-				$response = $this->create_3ds_source( $order, $source_object, $subscription->get_view_order_url() );
+				$response = $this->create_3ds_source($order, $source_object, $subscription->get_view_order_url());
 
-				if ( ! empty( $response->error ) ) {
+				if ( ! empty($response->error)) {
 					$localized_message = $response->error->message;
 
-					$order->add_order_note( $localized_message );
+					$order->add_order_note($localized_message);
 
-					throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+					throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 				}
 
 				// Update order meta with 3DS source.
-				if ( WC_Stripe_Helper::is_pre_30() ) {
-					update_post_meta( $order_id, '_stripe_source_id', $response->id );
+				if (WC_Stripe_Helper::is_pre_30()) {
+					update_post_meta($order_id, '_stripe_source_id', $response->id);
 				} else {
-					$subscription->update_meta_data( '_stripe_source_id', $response->id );
+					$subscription->update_meta_data('_stripe_source_id', $response->id);
 					$subscription->save();
 				}
 
-				WC_Stripe_Logger::log( 'Info: Redirecting to 3DS...' );
+				WC_Stripe_Logger::log('Info: Redirecting to 3DS...');
 
 				return array(
 					'result'   => 'success',
-					'redirect' => esc_url_raw( $response->redirect->url ),
+					'redirect' => esc_url_raw($response->redirect->url),
 				);
 			}
 
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $subscription ),
+				'redirect' => $this->get_return_url($subscription),
 			);
-		} catch ( WC_Stripe_Exception $e ) {
-			wc_add_notice( $e->getLocalizedMessage(), 'error' );
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			wc_add_notice($e->getLocalizedMessage(), 'error');
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 		}
 	}
 
@@ -157,18 +157,18 @@ 
 	 * @param  int $order_id
 	 * @return array
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false ) {
-		if ( $this->has_subscription( $order_id ) ) {
-			if ( $this->is_subs_change_payment() ) {
-				return $this->change_subs_payment_method( $order_id );
+	public function process_payment($order_id, $retry = true, $force_save_source = false) {
+		if ($this->has_subscription($order_id)) {
+			if ($this->is_subs_change_payment()) {
+				return $this->change_subs_payment_method($order_id);
 			}
 
 			// Regular payment with force customer enabled
-			return parent::process_payment( $order_id, true, true );
-		} elseif ( $this->is_pre_order( $order_id ) ) {
-			return $this->process_pre_order( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, true, true);
+		} elseif ($this->is_pre_order($order_id)) {
+			return $this->process_pre_order($order_id, $retry, $force_save_source);
 		} else {
-			return parent::process_payment( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, $retry, $force_save_source);
 		}
 	}
 
@@ -179,14 +179,14 @@ 
 	 * @param array $metadata
 	 * @param object $order
 	 */
-	public function add_subscription_meta_data( $metadata, $order ) {
-		if ( ! $this->has_subscription( $order->get_id() ) ) {
+	public function add_subscription_meta_data($metadata, $order) {
+		if ( ! $this->has_subscription($order->get_id())) {
 			return $metadata;
 		}
 
 		return $metadata += array(
 			'payment_type'   => 'recurring',
-			'site_url'       => esc_url( get_site_url() ),
+			'site_url'       => esc_url(get_site_url()),
 		);
 	}
 
@@ -196,24 +196,24 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	public function save_source( $order, $source ) {
-		parent::save_source( $order, $source );
+	public function save_source($order, $source) {
+		parent::save_source($order, $source);
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
 		// Also store it on the subscriptions being purchased or paid for in the order
-		if ( function_exists( 'wcs_order_contains_subscription' ) && wcs_order_contains_subscription( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_order( $order_id );
-		} elseif ( function_exists( 'wcs_order_contains_renewal' ) && wcs_order_contains_renewal( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_renewal_order( $order_id );
+		if (function_exists('wcs_order_contains_subscription') && wcs_order_contains_subscription($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_order($order_id);
+		} elseif (function_exists('wcs_order_contains_renewal') && wcs_order_contains_renewal($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_renewal_order($order_id);
 		} else {
 			$subscriptions = array();
 		}
 
-		foreach ( $subscriptions as $subscription ) {
+		foreach ($subscriptions as $subscription) {
 			$subscription_id = WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id();
-			update_post_meta( $subscription_id, '_stripe_customer_id', $source->customer );
-			update_post_meta( $subscription_id, '_stripe_source_id', $source->source );
+			update_post_meta($subscription_id, '_stripe_customer_id', $source->customer);
+			update_post_meta($subscription_id, '_stripe_source_id', $source->source);
 		}
 	}
 
@@ -223,35 +223,35 @@ 
 	 * @param mixed $renewal_order
 	 * @param  bool initial_payment
 	 */
-	public function process_subscription_payment( $amount = 0.0, $renewal_order ) {
-		if ( $amount * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function process_subscription_payment($amount = 0.0, $renewal_order) {
+		if ($amount * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: minimum amount */
-			return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id();
 
 		// Get source from order
-		$prepared_source = $this->prepare_order_source( $renewal_order );
+		$prepared_source = $this->prepare_order_source($renewal_order);
 
-		if ( ! $prepared_source->customer ) {
-			return new WP_Error( 'stripe_error', __( 'Customer not found', 'woocommerce-gateway-stripe' ) );
+		if ( ! $prepared_source->customer) {
+			return new WP_Error('stripe_error', __('Customer not found', 'woocommerce-gateway-stripe'));
 		}
 
-		WC_Stripe_Logger::log( "Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}");
 
 		// Make the request
-		$request            = $this->generate_payment_request( $renewal_order, $prepared_source );
+		$request            = $this->generate_payment_request($renewal_order, $prepared_source);
 		$request['capture'] = 'true';
-		$request['amount']  = WC_Stripe_Helper::get_stripe_amount( $amount, $request['currency'] );
-		$response           = WC_Stripe_API::request( $request );
+		$request['amount']  = WC_Stripe_Helper::get_stripe_amount($amount, $request['currency']);
+		$response           = WC_Stripe_API::request($request);
 
 		// Process valid response
-		if ( ! empty( $response->error ) ) {
+		if ( ! empty($response->error)) {
 			return $response; // Default catch all errors.
 		}
 
-		$this->process_response( $response, $renewal_order );
+		$this->process_response($response, $renewal_order);
 
 		return $response;
 	}
@@ -265,59 +265,59 @@ 
 	 * @param mixed $renewal_order
 	 * @param  bool initial_payment
 	 */
-	public function retry_subscription_payment( $amount = 0.0, $renewal_order ) {
-		if ( $amount * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function retry_subscription_payment($amount = 0.0, $renewal_order) {
+		if ($amount * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: minimum amount */
-			return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id();
 
 		// Get source from order
-		$prepared_source = $this->prepare_order_source( $renewal_order );
+		$prepared_source = $this->prepare_order_source($renewal_order);
 
-		if ( ! $prepared_source->customer ) {
-			return new WP_Error( 'stripe_error', __( 'Customer not found', 'woocommerce-gateway-stripe' ) );
+		if ( ! $prepared_source->customer) {
+			return new WP_Error('stripe_error', __('Customer not found', 'woocommerce-gateway-stripe'));
 		}
 
 		// Passing empty source with charge customer default.
 		$prepared_source->source = '';
 
-		WC_Stripe_Logger::log( "Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}");
 
 		// Make the request
-		$request             = $this->generate_payment_request( $renewal_order, $prepared_source );
+		$request             = $this->generate_payment_request($renewal_order, $prepared_source);
 		$request['capture']  = 'true';
-		$request['amount']   = WC_Stripe_Helper::get_stripe_amount( $amount, $request['currency'] );
-		$response            = WC_Stripe_API::request( $request );
+		$request['amount']   = WC_Stripe_Helper::get_stripe_amount($amount, $request['currency']);
+		$response            = WC_Stripe_API::request($request);
 
-		if ( ! empty( $response->error ) || is_wp_error( $response ) ) {
+		if ( ! empty($response->error) || is_wp_error($response)) {
 			/* translators: error message */
-			$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->error->message ) );
+			$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->error->message));
 		}
 
-		$this->process_response( $response, $renewal_order );
+		$this->process_response($response, $renewal_order);
 	}
 
 	/**
 	 * Don't transfer Stripe customer/token meta to resubscribe orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_resubscribe_meta( $resubscribe_order ) {
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_customer_id' );
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_source_id' );
+	public function delete_resubscribe_meta($resubscribe_order) {
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_customer_id');
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_source_id');
 		// For BW compat will remove in future
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_card_id' );
-		$this->delete_renewal_meta( $resubscribe_order );
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_card_id');
+		$this->delete_renewal_meta($resubscribe_order);
 	}
 
 	/**
 	 * Don't transfer Stripe fee/ID meta to renewal orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_renewal_meta( $renewal_order ) {
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id() ), 'Stripe Fee' );
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id() ), 'Net Revenue From Stripe' );
+	public function delete_renewal_meta($renewal_order) {
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id()), 'Stripe Fee');
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id()), 'Net Revenue From Stripe');
 		return $renewal_order;
 	}
 
@@ -327,21 +327,21 @@ 
 	 * @param $amount_to_charge float The amount to charge.
 	 * @param $renewal_order WC_Order A WC_Order object created to record the renewal payment.
 	 */
-	public function scheduled_subscription_payment( $amount_to_charge, $renewal_order ) {
-		$response = $this->process_subscription_payment( $amount_to_charge, $renewal_order );
+	public function scheduled_subscription_payment($amount_to_charge, $renewal_order) {
+		$response = $this->process_subscription_payment($amount_to_charge, $renewal_order);
 
-		if ( is_wp_error( $response ) ) {
+		if (is_wp_error($response)) {
 			/* translators: error message */
-			$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->get_error_message() ) );
+			$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->get_error_message()));
 		}
 
-		if ( ! empty( $response->error ) ) {
+		if ( ! empty($response->error)) {
 			// This is a very generic error to listen for but worth a retry before total fail.
-			if ( isset( $response->error->type ) && 'invalid_request_error' === $response->error->type && apply_filters( 'wc_stripe_use_default_customer_source', true ) ) {
-				$this->retry_subscription_payment( $amount_to_charge, $renewal_order );
+			if (isset($response->error->type) && 'invalid_request_error' === $response->error->type && apply_filters('wc_stripe_use_default_customer_source', true)) {
+				$this->retry_subscription_payment($amount_to_charge, $renewal_order);
 			} else {
 				/* translators: error message */
-				$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->error->message ) );
+				$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->error->message));
 			}
 		}
 	}
@@ -350,20 +350,20 @@ 
 	 * Remove order meta
 	 * @param object $order
 	 */
-	public function remove_order_source_before_retry( $order ) {
+	public function remove_order_source_before_retry($order) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		delete_post_meta( $order_id, '_stripe_source_id' );
+		delete_post_meta($order_id, '_stripe_source_id');
 		// For BW compat will remove in the future.
-		delete_post_meta( $order_id, '_stripe_card_id' );
+		delete_post_meta($order_id, '_stripe_card_id');
 	}
 
 	/**
 	 * Remove order meta
 	 * @param  object $order
 	 */
-	public function remove_order_customer_before_retry( $order ) {
+	public function remove_order_customer_before_retry($order) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		delete_post_meta( $order_id, '_stripe_customer_id' );
+		delete_post_meta($order_id, '_stripe_customer_id');
 	}
 
 	/**
@@ -375,14 +375,14 @@ 
 	 * @param WC_Order $renewal_order The order which recorded the successful payment (to make up for the failed automatic payment).
 	 * @return void
 	 */
-	public function update_failing_payment_method( $subscription, $renewal_order ) {
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			update_post_meta( $subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id );
-			update_post_meta( $subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id );
+	public function update_failing_payment_method($subscription, $renewal_order) {
+		if (WC_Stripe_Helper::is_pre_30()) {
+			update_post_meta($subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id);
+			update_post_meta($subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id);
 
 		} else {
-			update_post_meta( $subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta( '_stripe_customer_id', true ) );
-			update_post_meta( $subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta( '_stripe_source_id', true ) );
+			update_post_meta($subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta('_stripe_customer_id', true));
+			update_post_meta($subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta('_stripe_source_id', true));
 		}
 	}
 
@@ -395,21 +395,21 @@ 
 	 * @param WC_Subscription $subscription An instance of a subscription object
 	 * @return array
 	 */
-	public function add_subscription_payment_meta( $payment_meta, $subscription ) {
-		$source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_source_id', true );
+	public function add_subscription_payment_meta($payment_meta, $subscription) {
+		$source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $source_id ) ) {
-			$source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_card_id', true );
+		if (empty($source_id)) {
+			$source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->id, '_stripe_source_id', $source_id ) : update_post_meta( $subscription->get_id(), '_stripe_source_id', $source_id );
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->id, '_stripe_source_id', $source_id) : update_post_meta($subscription->get_id(), '_stripe_source_id', $source_id);
 		}
 
-		$payment_meta[ $this->id ] = array(
+		$payment_meta[$this->id] = array(
 			'post_meta' => array(
 				'_stripe_customer_id' => array(
-					'value' => get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_customer_id', true ),
+					'value' => get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_customer_id', true),
 					'label' => 'Stripe Customer ID',
 				),
 				'_stripe_source_id' => array(
@@ -432,22 +432,22 @@ 
 	 * @param array $payment_meta associative array of meta data required for automatic payments
 	 * @return array
 	 */
-	public function validate_subscription_payment_meta( $payment_method_id, $payment_meta ) {
-		if ( $this->id === $payment_method_id ) {
+	public function validate_subscription_payment_meta($payment_method_id, $payment_meta) {
+		if ($this->id === $payment_method_id) {
 
-			if ( ! isset( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) || empty( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) ) {
-				throw new Exception( __( 'A "Stripe Customer ID" value is required.', 'woocommerce-gateway-stripe' ) );
-			} elseif ( 0 !== strpos( $payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_' ) ) {
-				throw new Exception( __( 'Invalid customer ID. A valid "Stripe Customer ID" must begin with "cus_".', 'woocommerce-gateway-stripe' ) );
+			if ( ! isset($payment_meta['post_meta']['_stripe_customer_id']['value']) || empty($payment_meta['post_meta']['_stripe_customer_id']['value'])) {
+				throw new Exception(__('A "Stripe Customer ID" value is required.', 'woocommerce-gateway-stripe'));
+			} elseif (0 !== strpos($payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_')) {
+				throw new Exception(__('Invalid customer ID. A valid "Stripe Customer ID" must begin with "cus_".', 'woocommerce-gateway-stripe'));
 			}
 
 			if (
-				( ! empty( $payment_meta['post_meta']['_stripe_source_id']['value'] )
-				&& 0 !== strpos( $payment_meta['post_meta']['_stripe_source_id']['value'], 'card_' ) )
-				&& ( ! empty( $payment_meta['post_meta']['_stripe_source_id']['value'] )
-				&& 0 !== strpos( $payment_meta['post_meta']['_stripe_source_id']['value'], 'src_' ) ) ) {
+				( ! empty($payment_meta['post_meta']['_stripe_source_id']['value'])
+				&& 0 !== strpos($payment_meta['post_meta']['_stripe_source_id']['value'], 'card_'))
+				&& ( ! empty($payment_meta['post_meta']['_stripe_source_id']['value'])
+				&& 0 !== strpos($payment_meta['post_meta']['_stripe_source_id']['value'], 'src_')) ) {
 
-				throw new Exception( __( 'Invalid source ID. A valid source "Stripe Source ID" must begin with "src_" or "card_".', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Invalid source ID. A valid source "Stripe Source ID" must begin with "src_" or "card_".', 'woocommerce-gateway-stripe'));
 			}
 		}
 	}
@@ -460,91 +460,91 @@ 
 	 * @param WC_Subscription $subscription the subscription details
 	 * @return string the subscription payment method
 	 */
-	public function maybe_render_subscription_payment_method( $payment_method_to_display, $subscription ) {
+	public function maybe_render_subscription_payment_method($payment_method_to_display, $subscription) {
 		$customer_user = WC_Stripe_Helper::is_pre_30() ? $subscription->customer_user : $subscription->get_customer_id();
 
 		// bail for other payment methods
-		if ( ( WC_Stripe_Helper::is_pre_30() ? $subscription->payment_method : $subscription->get_payment_method() ) !== $this->id || ! $customer_user ) {
+		if ((WC_Stripe_Helper::is_pre_30() ? $subscription->payment_method : $subscription->get_payment_method()) !== $this->id || ! $customer_user) {
 			return $payment_method_to_display;
 		}
 
-		$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_source_id', true );
+		$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $stripe_source_id ) ) {
-			$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_card_id', true );
+		if (empty($stripe_source_id)) {
+			$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_id(), '_stripe_source_id', $stripe_source_id );
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_id(), '_stripe_source_id', $stripe_source_id);
 		}
 
 		$stripe_customer    = new WC_Stripe_Customer();
-		$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_customer_id', true );
+		$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_customer_id', true);
 
 		// If we couldn't find a Stripe customer linked to the subscription, fallback to the user meta data.
-		if ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) {
+		if ( ! $stripe_customer_id || ! is_string($stripe_customer_id)) {
 			$user_id            = $customer_user;
-			$stripe_customer_id = get_user_meta( $user_id, '_stripe_customer_id', true );
-			$stripe_source_id   = get_user_meta( $user_id, '_stripe_source_id', true );
+			$stripe_customer_id = get_user_meta($user_id, '_stripe_customer_id', true);
+			$stripe_source_id   = get_user_meta($user_id, '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_user_meta( $user_id, '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_user_meta($user_id, '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				update_user_meta( $user_id, '_stripe_source_id', $stripe_source_id );
+				update_user_meta($user_id, '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
 		// If we couldn't find a Stripe customer linked to the account, fallback to the order meta data.
-		if ( ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) && false !== $subscription->order ) {
-			$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_customer_id', true );
-			$stripe_source_id   = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_source_id', true );
+		if (( ! $stripe_customer_id || ! is_string($stripe_customer_id)) && false !== $subscription->order) {
+			$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_customer_id', true);
+			$stripe_source_id   = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->order->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->order->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
-		$stripe_customer->set_id( $stripe_customer_id );
+		$stripe_customer->set_id($stripe_customer_id);
 		$sources = $stripe_customer->get_sources();
 
-		if ( $sources ) {
+		if ($sources) {
 			$found_source = false;
-			foreach ( $sources as $source ) {
-				if ( isset( $source->type ) && 'card' === $source->type ) {
+			foreach ($sources as $source) {
+				if (isset($source->type) && 'card' === $source->type) {
 					$card = $source->card;
-				} elseif ( isset( $source->object ) && 'card' === $source->object ) {
+				} elseif (isset($source->object) && 'card' === $source->object) {
 					$card = $source;
 				}
 
-				if ( $source->id === $stripe_source_id ) {
+				if ($source->id === $stripe_source_id) {
 					$found_source = true;
 
-					if ( $card ) {
+					if ($card) {
 						/* translators: 1) card brand 2) last 4 digits */
-						$payment_method_to_display = sprintf( __( 'Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe' ), ( isset( $card->brand ) ? $card->brand : __( 'N/A', 'woocommerce-gateway-stripe' ) ), $card->last4 );
+						$payment_method_to_display = sprintf(__('Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe'), (isset($card->brand) ? $card->brand : __('N/A', 'woocommerce-gateway-stripe')), $card->last4);
 					} else {
-						$payment_method_to_display = __( 'N/A', 'woocommerce-gateway-stripe' );
+						$payment_method_to_display = __('N/A', 'woocommerce-gateway-stripe');
 					}
 					break;
 				}
 			}
 
-			if ( ! $found_source ) {
-				if ( 'card' === $sources[0]->type ) {
+			if ( ! $found_source) {
+				if ('card' === $sources[0]->type) {
 					$card = $sources[0]->card;
 				}
 
-				if ( $card ) {
+				if ($card) {
 					/* translators: 1) card brand 2) last 4 digits */
-					$payment_method_to_display = sprintf( __( 'Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe' ), ( isset( $card->brand ) ? $card->brand : __( 'N/A', 'woocommerce-gateway-stripe' ) ), $card->last4 );
+					$payment_method_to_display = sprintf(__('Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe'), (isset($card->brand) ? $card->brand : __('N/A', 'woocommerce-gateway-stripe')), $card->last4);
 				} else {
-					$payment_method_to_display = __( 'N/A', 'woocommerce-gateway-stripe' );
+					$payment_method_to_display = __('N/A', 'woocommerce-gateway-stripe');
 				}
 			}
 		}
@@ -557,43 +557,43 @@ 
 	 * @param int $order_id
 	 * @return array
 	 */
-	public function process_pre_order( $order_id, $retry, $force_save_source ) {
-		if ( WC_Pre_Orders_Order::order_requires_payment_tokenization( $order_id ) ) {
+	public function process_pre_order($order_id, $retry, $force_save_source) {
+		if (WC_Pre_Orders_Order::order_requires_payment_tokenization($order_id)) {
 			try {
-				$order = wc_get_order( $order_id );
+				$order = wc_get_order($order_id);
 
-				if ( $order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+				if ($order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 					/* translators: minimum amount */
-					throw new Exception( sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+					throw new Exception(sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 				}
 
-				$source = $this->prepare_source( $this->get_source_object(), get_current_user_id(), true );
+				$source = $this->prepare_source($this->get_source_object(), get_current_user_id(), true);
 
 				// We need a source on file to continue.
-				if ( empty( $source->customer ) || empty( $source->source ) ) {
-					throw new Exception( __( 'Unable to store payment details. Please try again.', 'woocommerce-gateway-stripe' ) );
+				if (empty($source->customer) || empty($source->source)) {
+					throw new Exception(__('Unable to store payment details. Please try again.', 'woocommerce-gateway-stripe'));
 				}
 
 				// Store source to order meta
-				$this->save_source( $order, $source );
+				$this->save_source($order, $source);
 
 				// Remove cart
 				WC()->cart->empty_cart();
 
 				// Is pre ordered!
-				WC_Pre_Orders_Order::mark_order_as_pre_ordered( $order );
+				WC_Pre_Orders_Order::mark_order_as_pre_ordered($order);
 
 				// Return thank you page redirect
 				return array(
 					'result'   => 'success',
-					'redirect' => $this->get_return_url( $order ),
+					'redirect' => $this->get_return_url($order),
 				);
-			} catch ( Exception $e ) {
-				wc_add_notice( $e->getMessage(), 'error' );
+			} catch (Exception $e) {
+				wc_add_notice($e->getMessage(), 'error');
 				return;
 			}
 		} else {
-			return parent::process_payment( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, $retry, $force_save_source);
 		}
 	}
 
@@ -602,7 +602,7 @@ 
 	 * @param WC_Order $order
 	 * @return void
 	 */
-	public function process_pre_order_release_payment( $order ) {
+	public function process_pre_order_release_payment($order) {
 		try {
 			// Define some callbacks if the first attempt fails.
 			$retry_callbacks = array(
@@ -610,33 +610,33 @@ 
 				'remove_order_customer_before_retry',
 			);
 
-			while ( 1 ) {
-				$source   = $this->prepare_order_source( $order );
-				$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $source ) );
+			while (1) {
+				$source   = $this->prepare_order_source($order);
+				$response = WC_Stripe_API::request($this->generate_payment_request($order, $source));
 
-				if ( ! empty( $response->error ) ) {
-					if ( 0 === sizeof( $retry_callbacks ) ) {
-						throw new Exception( $response->error->message );
+				if ( ! empty($response->error)) {
+					if (0 === sizeof($retry_callbacks)) {
+						throw new Exception($response->error->message);
 					} else {
-						$retry_callback = array_shift( $retry_callbacks );
-						call_user_func( array( $this, $retry_callback ), $order );
+						$retry_callback = array_shift($retry_callbacks);
+						call_user_func(array($this, $retry_callback), $order);
 					}
 				} else {
 					// Successful
-					$this->process_response( $response, $order );
+					$this->process_response($response, $order);
 					break;
 				}
 			}
-		} catch ( Exception $e ) {
+		} catch (Exception $e) {
 			/* translators: error message */
-			$order_note = sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $e->getMessage() );
+			$order_note = sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $e->getMessage());
 
 			// Mark order as failed if not already set,
 			// otherwise, make sure we add the order note so we can detect when someone fails to check out multiple times
-			if ( ! $order->has_status( 'failed' ) ) {
-				$order->update_status( 'failed', $order_note );
+			if ( ! $order->has_status('failed')) {
+				$order->update_status('failed', $order_note);
 			} else {
-				$order->add_order_note( $order_note );
+				$order->add_order_note($order_note);
 			}
 		}
 	}

includes/compat/class-wc-stripe-sepa-compat.php

Spacing +166 added lines, -166 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -15,24 +15,24 @@ 
 	public function __construct() {
 		parent::__construct();
 
-		if ( class_exists( 'WC_Subscriptions_Order' ) ) {
-			add_action( 'woocommerce_scheduled_subscription_payment_' . $this->id, array( $this, 'scheduled_subscription_payment' ), 10, 2 );
-			add_action( 'wcs_resubscribe_order_created', array( $this, 'delete_resubscribe_meta' ), 10 );
-			add_action( 'wcs_renewal_order_created', array( $this, 'delete_renewal_meta' ), 10 );
-			add_action( 'woocommerce_subscription_failing_payment_method_updated_stripe', array( $this, 'update_failing_payment_method' ), 10, 2 );
+		if (class_exists('WC_Subscriptions_Order')) {
+			add_action('woocommerce_scheduled_subscription_payment_' . $this->id, array($this, 'scheduled_subscription_payment'), 10, 2);
+			add_action('wcs_resubscribe_order_created', array($this, 'delete_resubscribe_meta'), 10);
+			add_action('wcs_renewal_order_created', array($this, 'delete_renewal_meta'), 10);
+			add_action('woocommerce_subscription_failing_payment_method_updated_stripe', array($this, 'update_failing_payment_method'), 10, 2);
 
 			// display the credit card used for a subscription in the "My Subscriptions" table
-			add_filter( 'woocommerce_my_subscriptions_payment_method', array( $this, 'maybe_render_subscription_payment_method' ), 10, 2 );
+			add_filter('woocommerce_my_subscriptions_payment_method', array($this, 'maybe_render_subscription_payment_method'), 10, 2);
 
 			// allow store managers to manually set Stripe as the payment method on a subscription
-			add_filter( 'woocommerce_subscription_payment_meta', array( $this, 'add_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'woocommerce_subscription_validate_payment_meta', array( $this, 'validate_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'wc_stripe_display_save_payment_method_checkbox', array( $this, 'maybe_hide_save_checkbox' ) );
-			add_filter( 'wc_stripe_payment_metadata', array( $this, 'add_subscription_meta_data' ), 10, 2 );
+			add_filter('woocommerce_subscription_payment_meta', array($this, 'add_subscription_payment_meta'), 10, 2);
+			add_filter('woocommerce_subscription_validate_payment_meta', array($this, 'validate_subscription_payment_meta'), 10, 2);
+			add_filter('wc_stripe_display_save_payment_method_checkbox', array($this, 'maybe_hide_save_checkbox'));
+			add_filter('wc_stripe_payment_metadata', array($this, 'add_subscription_meta_data'), 10, 2);
 		}
 
-		if ( class_exists( 'WC_Pre_Orders_Order' ) ) {
-			add_action( 'wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array( $this, 'process_pre_order_release_payment' ) );
+		if (class_exists('WC_Pre_Orders_Order')) {
+			add_action('wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array($this, 'process_pre_order_release_payment'));
 		}
 	}
 
@@ -43,8 +43,8 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function maybe_hide_save_checkbox( $display_tokenization ) {
-		if ( WC_Subscriptions_Cart::cart_contains_subscription() ) {
+	public function maybe_hide_save_checkbox($display_tokenization) {
+		if (WC_Subscriptions_Cart::cart_contains_subscription()) {
 			return false;
 		}
 
@@ -56,8 +56,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function has_subscription( $order_id ) {
-		return ( function_exists( 'wcs_order_contains_subscription' ) && ( wcs_order_contains_subscription( $order_id ) || wcs_is_subscription( $order_id ) || wcs_order_contains_renewal( $order_id ) ) );
+	public function has_subscription($order_id) {
+		return (function_exists('wcs_order_contains_subscription') && (wcs_order_contains_subscription($order_id) || wcs_is_subscription($order_id) || wcs_order_contains_renewal($order_id)));
 	}
 
 	/**
@@ -65,8 +65,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	protected function is_pre_order( $order_id ) {
-		return ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Order::order_contains_pre_order( $order_id ) );
+	protected function is_pre_order($order_id) {
+		return (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Order::order_contains_pre_order($order_id));
 	}
 
 	/**
@@ -74,14 +74,14 @@ 
 	 * @param  int $order_id
 	 * @return array
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false ) {
-		if ( $this->has_subscription( $order_id ) ) {
+	public function process_payment($order_id, $retry = true, $force_save_source = false) {
+		if ($this->has_subscription($order_id)) {
 			// Regular payment with force customer enabled
-			return parent::process_payment( $order_id, true, true );
-		} elseif ( $this->is_pre_order( $order_id ) ) {
-			return $this->process_pre_order( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, true, true);
+		} elseif ($this->is_pre_order($order_id)) {
+			return $this->process_pre_order($order_id, $retry, $force_save_source);
 		} else {
-			return parent::process_payment( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, $retry, $force_save_source);
 		}
 	}
 
@@ -92,14 +92,14 @@ 
 	 * @param array $metadata
 	 * @param object $order
 	 */
-	public function add_subscription_meta_data( $metadata, $order ) {
-		if ( ! $this->has_subscription( $order->get_id() ) ) {
+	public function add_subscription_meta_data($metadata, $order) {
+		if ( ! $this->has_subscription($order->get_id())) {
 			return $metadata;
 		}
 
 		return $metadata += array(
 			'payment_type'   => 'recurring',
-			'site_url'       => esc_url( get_site_url() ),
+			'site_url'       => esc_url(get_site_url()),
 		);
 	}
 
@@ -109,24 +109,24 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	public function save_source( $order, $source ) {
-		parent::save_source( $order, $source );
+	public function save_source($order, $source) {
+		parent::save_source($order, $source);
 
-		$order_id  = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
 		// Also store it on the subscriptions being purchased or paid for in the order
-		if ( function_exists( 'wcs_order_contains_subscription' ) && wcs_order_contains_subscription( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_order( $order_id );
-		} elseif ( function_exists( 'wcs_order_contains_renewal' ) && wcs_order_contains_renewal( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_renewal_order( $order_id );
+		if (function_exists('wcs_order_contains_subscription') && wcs_order_contains_subscription($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_order($order_id);
+		} elseif (function_exists('wcs_order_contains_renewal') && wcs_order_contains_renewal($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_renewal_order($order_id);
 		} else {
 			$subscriptions = array();
 		}
 
-		foreach ( $subscriptions as $subscription ) {
+		foreach ($subscriptions as $subscription) {
 			$subscription_id = WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id();
-			update_post_meta( $subscription_id, '_stripe_customer_id', $source->customer );
-			update_post_meta( $subscription_id, '_stripe_source_id', $source->source );
+			update_post_meta($subscription_id, '_stripe_customer_id', $source->customer);
+			update_post_meta($subscription_id, '_stripe_source_id', $source->source);
 		}
 	}
 
@@ -136,35 +136,35 @@ 
 	 * @param mixed $renewal_order
 	 * @param  bool initial_payment
 	 */
-	public function process_subscription_payment( $amount = 0.0, $renewal_order ) {
-		if ( $amount * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function process_subscription_payment($amount = 0.0, $renewal_order) {
+		if ($amount * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: minimum amount */
-			return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id();
 
 		// Get source from order
-		$prepared_source = $this->prepare_order_source( $renewal_order );
+		$prepared_source = $this->prepare_order_source($renewal_order);
 
-		if ( ! $prepared_source->customer ) {
-			return new WP_Error( 'stripe_error', __( 'Customer not found', 'woocommerce-gateway-stripe' ) );
+		if ( ! $prepared_source->customer) {
+			return new WP_Error('stripe_error', __('Customer not found', 'woocommerce-gateway-stripe'));
 		}
 
-		WC_Stripe_Logger::log( "Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}");
 
 		// Make the request
-		$request             = $this->generate_payment_request( $renewal_order, $prepared_source );
+		$request             = $this->generate_payment_request($renewal_order, $prepared_source);
 		$request['capture']  = 'true';
-		$request['amount']   = WC_Stripe_Helper::get_stripe_amount( $amount, $request['currency'] );
-		$response            = WC_Stripe_API::request( $request );
+		$request['amount']   = WC_Stripe_Helper::get_stripe_amount($amount, $request['currency']);
+		$response            = WC_Stripe_API::request($request);
 
 		// Process valid response
-		if ( ! empty( $response->error ) ) {
+		if ( ! empty($response->error)) {
 			return $response; // Default catch all errors.
 		}
 
-		$this->process_response( $response, $renewal_order );
+		$this->process_response($response, $renewal_order);
 
 		return $response;
 	}
@@ -178,59 +178,59 @@ 
 	 * @param mixed $renewal_order
 	 * @param bool initial_payment
 	 */
-	public function retry_subscription_payment( $amount = 0.0, $renewal_order ) {
-		if ( $amount * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function retry_subscription_payment($amount = 0.0, $renewal_order) {
+		if ($amount * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: minimum amount */
-			return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id();
 
 		// Get source from order
-		$prepared_source = $this->prepare_order_source( $renewal_order );
+		$prepared_source = $this->prepare_order_source($renewal_order);
 
-		if ( ! $prepared_source->customer ) {
-			return new WP_Error( 'stripe_error', __( 'Customer not found', 'woocommerce-gateway-stripe' ) );
+		if ( ! $prepared_source->customer) {
+			return new WP_Error('stripe_error', __('Customer not found', 'woocommerce-gateway-stripe'));
 		}
 
 		// Passing empty source with charge customer default.
 		$prepared_source->source = '';
 
-		WC_Stripe_Logger::log( "Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}");
 
 		// Make the request
-		$request             = $this->generate_payment_request( $renewal_order, $prepared_source );
+		$request             = $this->generate_payment_request($renewal_order, $prepared_source);
 		$request['capture']  = 'true';
-		$request['amount']   = WC_Stripe_Helper::get_stripe_amount( $amount, $request['currency'] );
-		$response            = WC_Stripe_API::request( $request );
+		$request['amount']   = WC_Stripe_Helper::get_stripe_amount($amount, $request['currency']);
+		$response            = WC_Stripe_API::request($request);
 
-		if ( ! empty( $response->error ) || is_wp_error( $response ) ) {
+		if ( ! empty($response->error) || is_wp_error($response)) {
 			/* translators: error message */
-			$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->error->message ) );
+			$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->error->message));
 		}
 
-		$this->process_response( $response, $renewal_order );
+		$this->process_response($response, $renewal_order);
 	}
 
 	/**
 	 * Don't transfer Stripe customer/token meta to resubscribe orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_resubscribe_meta( $resubscribe_order ) {
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_customer_id' );
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_source_id' );
+	public function delete_resubscribe_meta($resubscribe_order) {
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_customer_id');
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_source_id');
 		// For BW compat will remove in future
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_card_id' );
-		$this->delete_renewal_meta( $resubscribe_order );
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_card_id');
+		$this->delete_renewal_meta($resubscribe_order);
 	}
 
 	/**
 	 * Don't transfer Stripe fee/ID meta to renewal orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_renewal_meta( $renewal_order ) {
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id() ), 'Stripe Fee' );
-		delete_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id() ), 'Net Revenue From Stripe' );
+	public function delete_renewal_meta($renewal_order) {
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id()), 'Stripe Fee');
+		delete_post_meta((WC_Stripe_Helper::is_pre_30() ? $renewal_order->id : $renewal_order->get_id()), 'Net Revenue From Stripe');
 		return $renewal_order;
 	}
 
@@ -240,21 +240,21 @@ 
 	 * @param $amount_to_charge float The amount to charge.
 	 * @param $renewal_order WC_Order A WC_Order object created to record the renewal payment.
 	 */
-	public function scheduled_subscription_payment( $amount_to_charge, $renewal_order ) {
-		$response = $this->process_subscription_payment( $amount_to_charge, $renewal_order );
+	public function scheduled_subscription_payment($amount_to_charge, $renewal_order) {
+		$response = $this->process_subscription_payment($amount_to_charge, $renewal_order);
 
-		if ( is_wp_error( $response ) ) {
+		if (is_wp_error($response)) {
 			/* translators: error message */
-			$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->get_error_message() ) );
+			$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->get_error_message()));
 		}
 
-		if ( ! empty( $response->error ) ) {
+		if ( ! empty($response->error)) {
 			// This is a very generic error to listen for but worth a retry before total fail.
-			if ( isset( $response->error->type ) && 'invalid_request_error' === $response->error->type && apply_filters( 'wc_stripe_use_default_customer_source', true ) ) {
-				$this->retry_subscription_payment( $amount_to_charge, $renewal_order );
+			if (isset($response->error->type) && 'invalid_request_error' === $response->error->type && apply_filters('wc_stripe_use_default_customer_source', true)) {
+				$this->retry_subscription_payment($amount_to_charge, $renewal_order);
 			} else {
 				/* translators: error message */
-				$renewal_order->update_status( 'failed', sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $response->error->message ) );
+				$renewal_order->update_status('failed', sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $response->error->message));
 			}
 		}
 	}
@@ -263,20 +263,20 @@ 
 	 * Remove order meta
 	 * @param  object $order
 	 */
-	public function remove_order_source_before_retry( $order ) {
+	public function remove_order_source_before_retry($order) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		delete_post_meta( $order_id, '_stripe_source_id' );
+		delete_post_meta($order_id, '_stripe_source_id');
 		// For BW compat will remove in the future.
-		delete_post_meta( $order_id, '_stripe_card_id' );
+		delete_post_meta($order_id, '_stripe_card_id');
 	}
 
 	/**
 	 * Remove order meta
 	 * @param object $order
 	 */
-	public function remove_order_customer_before_retry( $order ) {
+	public function remove_order_customer_before_retry($order) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		delete_post_meta( $order_id, '_stripe_customer_id' );
+		delete_post_meta($order_id, '_stripe_customer_id');
 	}
 
 	/**
@@ -288,14 +288,14 @@ 
 	 * @param WC_Order $renewal_order The order which recorded the successful payment (to make up for the failed automatic payment).
 	 * @return void
 	 */
-	public function update_failing_payment_method( $subscription, $renewal_order ) {
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			update_post_meta( $subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id );
-			update_post_meta( $subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id );
+	public function update_failing_payment_method($subscription, $renewal_order) {
+		if (WC_Stripe_Helper::is_pre_30()) {
+			update_post_meta($subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id);
+			update_post_meta($subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id);
 
 		} else {
-			update_post_meta( $subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta( '_stripe_customer_id', true ) );
-			update_post_meta( $subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta( '_stripe_source_id', true ) );
+			update_post_meta($subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta('_stripe_customer_id', true));
+			update_post_meta($subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta('_stripe_source_id', true));
 		}
 	}
 
@@ -308,21 +308,21 @@ 
 	 * @param WC_Subscription $subscription An instance of a subscription object
 	 * @return array
 	 */
-	public function add_subscription_payment_meta( $payment_meta, $subscription ) {
-		$source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_source_id', true );
+	public function add_subscription_payment_meta($payment_meta, $subscription) {
+		$source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $source_id ) ) {
-			$source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_card_id', true );
+		if (empty($source_id)) {
+			$source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->id, '_stripe_source_id', $source_id ) : update_post_meta( $subscription->get_id(), '_stripe_source_id', $source_id );
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->id, '_stripe_source_id', $source_id) : update_post_meta($subscription->get_id(), '_stripe_source_id', $source_id);
 		}
 
-		$payment_meta[ $this->id ] = array(
+		$payment_meta[$this->id] = array(
 			'post_meta' => array(
 				'_stripe_customer_id' => array(
-					'value' => get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_customer_id', true ),
+					'value' => get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_customer_id', true),
 					'label' => 'Stripe Customer ID',
 				),
 				'_stripe_source_id' => array(
@@ -343,17 +343,17 @@ 
 	 * @param array $payment_meta associative array of meta data required for automatic payments
 	 * @return array
 	 */
-	public function validate_subscription_payment_meta( $payment_method_id, $payment_meta ) {
-		if ( $this->id === $payment_method_id ) {
+	public function validate_subscription_payment_meta($payment_method_id, $payment_meta) {
+		if ($this->id === $payment_method_id) {
 
-			if ( ! isset( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) || empty( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) ) {
-				throw new Exception( 'A "_stripe_customer_id" value is required.' );
-			} elseif ( 0 !== strpos( $payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_' ) ) {
-				throw new Exception( 'Invalid customer ID. A valid "_stripe_customer_id" must begin with "cus_".' );
+			if ( ! isset($payment_meta['post_meta']['_stripe_customer_id']['value']) || empty($payment_meta['post_meta']['_stripe_customer_id']['value'])) {
+				throw new Exception('A "_stripe_customer_id" value is required.');
+			} elseif (0 !== strpos($payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_')) {
+				throw new Exception('Invalid customer ID. A valid "_stripe_customer_id" must begin with "cus_".');
 			}
 
-			if ( ! isset( $payment_meta['post_meta']['_stripe_source_id']['value'] ) || empty( $payment_meta['post_meta']['_stripe_source_id']['value'] ) ) {
-				throw new Exception( 'A "_stripe_source_id" value is required.' );
+			if ( ! isset($payment_meta['post_meta']['_stripe_source_id']['value']) || empty($payment_meta['post_meta']['_stripe_source_id']['value'])) {
+				throw new Exception('A "_stripe_source_id" value is required.');
 			}
 		}
 	}
@@ -366,89 +366,89 @@ 
 	 * @param WC_Subscription $subscription the subscription details
 	 * @return string the subscription payment method
 	 */
-	public function maybe_render_subscription_payment_method( $payment_method_to_display, $subscription ) {
+	public function maybe_render_subscription_payment_method($payment_method_to_display, $subscription) {
 		$customer_user = WC_Stripe_Helper::is_pre_30() ? $subscription->customer_user : $subscription->get_customer_id();
 
 		// bail for other payment methods
-		if ( ( WC_Stripe_Helper::is_pre_30() ? $subscription->payment_method : $subscription->get_payment_method() ) !== $this->id || ! $customer_user ) {
+		if ((WC_Stripe_Helper::is_pre_30() ? $subscription->payment_method : $subscription->get_payment_method()) !== $this->id || ! $customer_user) {
 			return $payment_method_to_display;
 		}
 
-		$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_source_id', true );
+		$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $stripe_source_id ) ) {
-			$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_card_id', true );
+		if (empty($stripe_source_id)) {
+			$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_id(), '_stripe_source_id', $stripe_source_id );
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_id(), '_stripe_source_id', $stripe_source_id);
 		}
 
 		$stripe_customer    = new WC_Stripe_Customer();
-		$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id() ), '_stripe_customer_id', true );
+		$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->id : $subscription->get_id()), '_stripe_customer_id', true);
 
 		// If we couldn't find a Stripe customer linked to the subscription, fallback to the user meta data.
-		if ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) {
+		if ( ! $stripe_customer_id || ! is_string($stripe_customer_id)) {
 			$user_id            = $customer_user;
-			$stripe_customer_id = get_user_meta( $user_id, '_stripe_customer_id', true );
-			$stripe_source_id   = get_user_meta( $user_id, '_stripe_source_id', true );
+			$stripe_customer_id = get_user_meta($user_id, '_stripe_customer_id', true);
+			$stripe_source_id   = get_user_meta($user_id, '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_user_meta( $user_id, '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_user_meta($user_id, '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				update_user_meta( $user_id, '_stripe_source_id', $stripe_source_id );
+				update_user_meta($user_id, '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
 		// If we couldn't find a Stripe customer linked to the account, fallback to the order meta data.
-		if ( ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) && false !== $subscription->order ) {
-			$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_customer_id', true );
-			$stripe_source_id   = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_source_id', true );
+		if (( ! $stripe_customer_id || ! is_string($stripe_customer_id)) && false !== $subscription->order) {
+			$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_customer_id', true);
+			$stripe_source_id   = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_pre_30() ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $subscription->order->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($subscription->order->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
-		$stripe_customer->set_id( $stripe_customer_id );
+		$stripe_customer->set_id($stripe_customer_id);
 		$sources = $stripe_customer->get_sources();
 
-		if ( $sources ) {
+		if ($sources) {
 			$found_source = false;
-			foreach ( $sources as $source ) {
-				if ( isset( $source->type ) && 'card' === $source->type ) {
+			foreach ($sources as $source) {
+				if (isset($source->type) && 'card' === $source->type) {
 					$card = $source->card;
 				}
 
-				if ( $source->id === $stripe_source_id ) {
+				if ($source->id === $stripe_source_id) {
 					$found_source = true;
 
-					if ( $card ) {
+					if ($card) {
 						/* translators: 1) card brand 2) last 4 digits */
-						$payment_method_to_display = sprintf( __( 'Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe' ), ( isset( $card->brand ) ? $card->brand : __( 'N/A', 'woocommerce-gateway-stripe' ) ), $card->last4 );
+						$payment_method_to_display = sprintf(__('Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe'), (isset($card->brand) ? $card->brand : __('N/A', 'woocommerce-gateway-stripe')), $card->last4);
 					} else {
-						$payment_method_to_display = __( 'N/A', 'woocommerce-gateway-stripe' );
+						$payment_method_to_display = __('N/A', 'woocommerce-gateway-stripe');
 					}
 					break;
 				}
 			}
 
-			if ( ! $found_source ) {
-				if ( 'card' === $sources[0]->type ) {
+			if ( ! $found_source) {
+				if ('card' === $sources[0]->type) {
 					$card = $sources[0]->card;
 				}
 
-				if ( $card ) {
+				if ($card) {
 					/* translators: 1) card brand 2) last 4 digits */
-					$payment_method_to_display = sprintf( __( 'Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe' ), ( isset( $card->brand ) ? $card->brand : __( 'N/A', 'woocommerce-gateway-stripe' ) ), $card->last4 );
+					$payment_method_to_display = sprintf(__('Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe'), (isset($card->brand) ? $card->brand : __('N/A', 'woocommerce-gateway-stripe')), $card->last4);
 				} else {
-					$payment_method_to_display = __( 'N/A', 'woocommerce-gateway-stripe' );
+					$payment_method_to_display = __('N/A', 'woocommerce-gateway-stripe');
 				}
 			}
 		}
@@ -461,43 +461,43 @@ 
 	 * @param int $order_id
 	 * @return array
 	 */
-	public function process_pre_order( $order_id, $retry, $force_save_source ) {
-		if ( WC_Pre_Orders_Order::order_requires_payment_tokenization( $order_id ) ) {
+	public function process_pre_order($order_id, $retry, $force_save_source) {
+		if (WC_Pre_Orders_Order::order_requires_payment_tokenization($order_id)) {
 			try {
-				$order = wc_get_order( $order_id );
+				$order = wc_get_order($order_id);
 
-				if ( $order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+				if ($order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 					/* translators: minimum amount */
-					throw new Exception( sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+					throw new Exception(sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 				}
 
-				$source = $this->prepare_source( $this->get_source_object(), get_current_user_id(), true );
+				$source = $this->prepare_source($this->get_source_object(), get_current_user_id(), true);
 
 				// We need a source on file to continue.
-				if ( empty( $source->customer ) || empty( $source->source ) ) {
-					throw new Exception( __( 'Unable to store payment details. Please try again.', 'woocommerce-gateway-stripe' ) );
+				if (empty($source->customer) || empty($source->source)) {
+					throw new Exception(__('Unable to store payment details. Please try again.', 'woocommerce-gateway-stripe'));
 				}
 
 				// Store source to order meta
-				$this->save_source( $order, $source );
+				$this->save_source($order, $source);
 
 				// Remove cart
 				WC()->cart->empty_cart();
 
 				// Is pre ordered!
-				WC_Pre_Orders_Order::mark_order_as_pre_ordered( $order );
+				WC_Pre_Orders_Order::mark_order_as_pre_ordered($order);
 
 				// Return thank you page redirect
 				return array(
 					'result'   => 'success',
-					'redirect' => $this->get_return_url( $order ),
+					'redirect' => $this->get_return_url($order),
 				);
-			} catch ( Exception $e ) {
-				wc_add_notice( $e->getMessage(), 'error' );
+			} catch (Exception $e) {
+				wc_add_notice($e->getMessage(), 'error');
 				return;
 			}
 		} else {
-			return parent::process_payment( $order_id, $retry, $force_save_source );
+			return parent::process_payment($order_id, $retry, $force_save_source);
 		}
 	}
 
@@ -506,7 +506,7 @@ 
 	 * @param WC_Order $order
 	 * @return void
 	 */
-	public function process_pre_order_release_payment( $order ) {
+	public function process_pre_order_release_payment($order) {
 		try {
 			// Define some callbacks if the first attempt fails.
 			$retry_callbacks = array(
@@ -514,33 +514,33 @@ 
 				'remove_order_customer_before_retry',
 			);
 
-			while ( 1 ) {
-				$source   = $this->prepare_order_source( $order );
-				$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $source ) );
+			while (1) {
+				$source   = $this->prepare_order_source($order);
+				$response = WC_Stripe_API::request($this->generate_payment_request($order, $source));
 
-				if ( ! empty( $response->error ) ) {
-					if ( 0 === sizeof( $retry_callbacks ) ) {
-						throw new Exception( $response->error->message );
+				if ( ! empty($response->error)) {
+					if (0 === sizeof($retry_callbacks)) {
+						throw new Exception($response->error->message);
 					} else {
-						$retry_callback = array_shift( $retry_callbacks );
-						call_user_func( array( $this, $retry_callback ), $order );
+						$retry_callback = array_shift($retry_callbacks);
+						call_user_func(array($this, $retry_callback), $order);
 					}
 				} else {
 					// Successful
-					$this->process_response( $response, $order );
+					$this->process_response($response, $order);
 					break;
 				}
 			}
-		} catch ( Exception $e ) {
+		} catch (Exception $e) {
 			/* translators: error message */
-			$order_note = sprintf( __( 'Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe' ), $e->getMessage() );
+			$order_note = sprintf(__('Stripe Transaction Failed (%s)', 'woocommerce-gateway-stripe'), $e->getMessage());
 
 			// Mark order as failed if not already set,
 			// otherwise, make sure we add the order note so we can detect when someone fails to check out multiple times
-			if ( ! $order->has_status( 'failed' ) ) {
-				$order->update_status( 'failed', $order_note );
+			if ( ! $order->has_status('failed')) {
+				$order->update_status('failed', $order_note);
 			} else {
-				$order->add_order_note( $order_note );
+				$order->add_order_note($order_note);
 			}
 		}
 	}