woocommerce / woocommerce-gateway-stripe

woocommerce-gateway-stripe.php

Spacing +81 added lines, -81 removed lines

@@ -15,11 +15,11 @@ 
  *
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
-require_once( dirname( __FILE__ ) . '/woo-includes/woo-functions.php' );
+require_once(dirname(__FILE__) . '/woo-includes/woo-functions.php');
 
 /**
  * WooCommerce fallback notice.
@@ -28,24 +28,24 @@ 
  * @return string
  */
 function woocommerce_stripe_missing_wc_notice() {
-	echo '<div class="error"><p><strong>' . sprintf( esc_html__( 'Stripe requires WooCommerce to be installed and active. You can download %s here.', 'woocommerce-gateway-stripe' ), '<a href="https://woocommerce.com/" target="_blank">WooCommerce</a>' ) . '</strong></p></div>';
+	echo '<div class="error"><p><strong>' . sprintf(esc_html__('Stripe requires WooCommerce to be installed and active. You can download %s here.', 'woocommerce-gateway-stripe'), '<a href="https://woocommerce.com/" target="_blank">WooCommerce</a>') . '</strong></p></div>';
 }
 
-if ( ! wc_stripe_is_wc_active() ) {
-	add_action( 'admin_notices', 'woocommerce_stripe_missing_wc_notice' );
+if ( ! wc_stripe_is_wc_active()) {
+	add_action('admin_notices', 'woocommerce_stripe_missing_wc_notice');
 	return;
 }
 
-if ( ! class_exists( 'WC_Stripe' ) ) :
+if ( ! class_exists('WC_Stripe')) :
 	/**
 	 * Required minimums and constants
 	 */
-	define( 'WC_STRIPE_VERSION', '4.1.2' );
-	define( 'WC_STRIPE_MIN_PHP_VER', '5.6.0' );
-	define( 'WC_STRIPE_MIN_WC_VER', '2.6.0' );
-	define( 'WC_STRIPE_MAIN_FILE', __FILE__ );
-	define( 'WC_STRIPE_PLUGIN_URL', untrailingslashit( plugins_url( basename( plugin_dir_path( __FILE__ ) ), basename( __FILE__ ) ) ) );
-	define( 'WC_STRIPE_PLUGIN_PATH', untrailingslashit( plugin_dir_path( __FILE__ ) ) );
+	define('WC_STRIPE_VERSION', '4.1.2');
+	define('WC_STRIPE_MIN_PHP_VER', '5.6.0');
+	define('WC_STRIPE_MIN_WC_VER', '2.6.0');
+	define('WC_STRIPE_MAIN_FILE', __FILE__);
+	define('WC_STRIPE_PLUGIN_URL', untrailingslashit(plugins_url(basename(plugin_dir_path(__FILE__)), basename(__FILE__))));
+	define('WC_STRIPE_PLUGIN_PATH', untrailingslashit(plugin_dir_path(__FILE__)));
 
 	class WC_Stripe {
 
@@ -65,7 +65,7 @@ 
 		 * @return Singleton The *Singleton* instance.
 		 */
 		public static function get_instance() {
-			if ( null === self::$instance ) {
+			if (null === self::$instance) {
 				self::$instance = new self();
 			}
 			return self::$instance;
@@ -92,8 +92,8 @@ 
 		 * *Singleton* via the `new` operator from outside of this class.
 		 */
 		private function __construct() {
-			add_action( 'admin_init', array( $this, 'install' ) );
-			add_action( 'plugins_loaded', array( $this, 'init' ) );
+			add_action('admin_init', array($this, 'install'));
+			add_action('plugins_loaded', array($this, 'init'));
 		}
 
 		/**
@@ -103,45 +103,45 @@ 
 		 * @version 4.0.0
 		 */
 		public function init() {
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-exception.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-logger.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-helper.php' );
-			include_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-api.php' );
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-exception.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-logger.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-helper.php');
+			include_once(dirname(__FILE__) . '/includes/class-wc-stripe-api.php');
 
-			load_plugin_textdomain( 'woocommerce-gateway-stripe', false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
+			load_plugin_textdomain('woocommerce-gateway-stripe', false, plugin_basename(dirname(__FILE__)) . '/languages');
 
-			require_once( dirname( __FILE__ ) . '/includes/abstracts/abstract-wc-stripe-payment-gateway.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-webhook-handler.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-sepa-payment-token.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-apple-pay-registration.php' );
-			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-pre-orders-compat.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-gateway-stripe.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-bancontact.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-sofort.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-giropay.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-eps.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-ideal.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-p24.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-alipay.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-sepa.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-gateway-stripe-multibanco.php' );
-			require_once( dirname( __FILE__ ) . '/includes/payment-methods/class-wc-stripe-payment-request.php' );
-			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-subs-compat.php' );
-			require_once( dirname( __FILE__ ) . '/includes/compat/class-wc-stripe-sepa-subs-compat.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-order-handler.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-payment-tokens.php' );
-			require_once( dirname( __FILE__ ) . '/includes/class-wc-stripe-customer.php' );
+			require_once(dirname(__FILE__) . '/includes/abstracts/abstract-wc-stripe-payment-gateway.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-webhook-handler.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-sepa-payment-token.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-apple-pay-registration.php');
+			require_once(dirname(__FILE__) . '/includes/compat/class-wc-stripe-pre-orders-compat.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-gateway-stripe.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-bancontact.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-sofort.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-giropay.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-eps.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-ideal.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-p24.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-alipay.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-sepa.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-gateway-stripe-multibanco.php');
+			require_once(dirname(__FILE__) . '/includes/payment-methods/class-wc-stripe-payment-request.php');
+			require_once(dirname(__FILE__) . '/includes/compat/class-wc-stripe-subs-compat.php');
+			require_once(dirname(__FILE__) . '/includes/compat/class-wc-stripe-sepa-subs-compat.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-order-handler.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-payment-tokens.php');
+			require_once(dirname(__FILE__) . '/includes/class-wc-stripe-customer.php');
 
-			if ( is_admin() ) {
-				require_once( dirname( __FILE__ ) . '/includes/admin/class-wc-stripe-admin-notices.php' );
+			if (is_admin()) {
+				require_once(dirname(__FILE__) . '/includes/admin/class-wc-stripe-admin-notices.php');
 			}
 
 			// REMOVE IN THE FUTURE.
-			require_once( dirname( __FILE__ ) . '/includes/deprecated/class-wc-stripe-apple-pay.php' );
+			require_once(dirname(__FILE__) . '/includes/deprecated/class-wc-stripe-apple-pay.php');
 
-			add_filter( 'woocommerce_payment_gateways', array( $this, 'add_gateways' ) );
-			add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( $this, 'plugin_action_links' ) );
-			add_filter( 'woocommerce_get_sections_checkout', array( $this, 'filter_gateway_order_admin' ) );
+			add_filter('woocommerce_payment_gateways', array($this, 'add_gateways'));
+			add_filter('plugin_action_links_' . plugin_basename(__FILE__), array($this, 'plugin_action_links'));
+			add_filter('woocommerce_get_sections_checkout', array($this, 'filter_gateway_order_admin'));
 		}
 
 		/**
@@ -151,8 +151,8 @@ 
 		 * @version 4.0.0
 		 */
 		public function update_plugin_version() {
-			delete_option( 'wc_stripe_version' );
-			update_option( 'wc_stripe_version', WC_STRIPE_VERSION );
+			delete_option('wc_stripe_version');
+			update_option('wc_stripe_version', WC_STRIPE_VERSION);
 		}
 
 		/**
@@ -162,15 +162,15 @@ 
 		 * @version 3.1.0
 		 */
 		public function install() {
-			if ( ! is_plugin_active( plugin_basename( __FILE__ ) ) ) {
+			if ( ! is_plugin_active(plugin_basename(__FILE__))) {
 				return;
 			}
 
-			if ( ! defined( 'IFRAME_REQUEST' ) && ( WC_STRIPE_VERSION !== get_option( 'wc_stripe_version' ) ) ) {
-				do_action( 'woocommerce_stripe_updated' );
+			if ( ! defined('IFRAME_REQUEST') && (WC_STRIPE_VERSION !== get_option('wc_stripe_version'))) {
+				do_action('woocommerce_stripe_updated');
 
-				if ( ! defined( 'WC_STRIPE_INSTALLING' ) ) {
-					define( 'WC_STRIPE_INSTALLING', true );
+				if ( ! defined('WC_STRIPE_INSTALLING')) {
+					define('WC_STRIPE_INSTALLING', true);
 				}
 
 				$this->update_plugin_version();
@@ -183,13 +183,13 @@ 
 		 * @since 1.0.0
 		 * @version 4.0.0
 		 */
-		public function plugin_action_links( $links ) {
+		public function plugin_action_links($links) {
 			$plugin_links = array(
-				'<a href="admin.php?page=wc-settings&tab=checkout&section=stripe">' . esc_html__( 'Settings', 'woocommerce-gateway-stripe' ) . '</a>',
-				'<a href="https://docs.woocommerce.com/document/stripe/">' . esc_html__( 'Docs', 'woocommerce-gateway-stripe' ) . '</a>',
-				'<a href="https://woocommerce.com/contact-us/">' . esc_html__( 'Support', 'woocommerce-gateway-stripe' ) . '</a>',
+				'<a href="admin.php?page=wc-settings&tab=checkout&section=stripe">' . esc_html__('Settings', 'woocommerce-gateway-stripe') . '</a>',
+				'<a href="https://docs.woocommerce.com/document/stripe/">' . esc_html__('Docs', 'woocommerce-gateway-stripe') . '</a>',
+				'<a href="https://woocommerce.com/contact-us/">' . esc_html__('Support', 'woocommerce-gateway-stripe') . '</a>',
 			);
-			return array_merge( $plugin_links, $links );
+			return array_merge($plugin_links, $links);
 		}
 
 		/**
@@ -198,8 +198,8 @@ 
 		 * @since 1.0.0
 		 * @version 4.0.0
 		 */
-		public function add_gateways( $methods ) {
-			if ( class_exists( 'WC_Subscriptions_Order' ) && function_exists( 'wcs_create_renewal_order' ) ) {
+		public function add_gateways($methods) {
+			if (class_exists('WC_Subscriptions_Order') && function_exists('wcs_create_renewal_order')) {
 				$methods[] = 'WC_Stripe_Subs_Compat';
 				$methods[] = 'WC_Stripe_Sepa_Subs_Compat';
 			} else {
@@ -225,28 +225,28 @@ 
 		 * @since 4.0.0
 		 * @version 4.0.0
 		 */
-		public function filter_gateway_order_admin( $sections ) {
-			unset( $sections['stripe'] );
-			unset( $sections['stripe_bancontact'] );
-			unset( $sections['stripe_sofort'] );
-			unset( $sections['stripe_giropay'] );
-			unset( $sections['stripe_eps'] );
-			unset( $sections['stripe_ideal'] );
-			unset( $sections['stripe_p24'] );
-			unset( $sections['stripe_alipay'] );
-			unset( $sections['stripe_sepa'] );
-			unset( $sections['stripe_multibanco'] );
+		public function filter_gateway_order_admin($sections) {
+			unset($sections['stripe']);
+			unset($sections['stripe_bancontact']);
+			unset($sections['stripe_sofort']);
+			unset($sections['stripe_giropay']);
+			unset($sections['stripe_eps']);
+			unset($sections['stripe_ideal']);
+			unset($sections['stripe_p24']);
+			unset($sections['stripe_alipay']);
+			unset($sections['stripe_sepa']);
+			unset($sections['stripe_multibanco']);
 
 			$sections['stripe']            = 'Stripe';
-			$sections['stripe_bancontact'] = __( 'Stripe Bancontact', 'woocommerce-gateway-stripe' );
-			$sections['stripe_sofort']     = __( 'Stripe SOFORT', 'woocommerce-gateway-stripe' );
-			$sections['stripe_giropay']    = __( 'Stripe Giropay', 'woocommerce-gateway-stripe' );
-			$sections['stripe_eps']        = __( 'Stripe EPS', 'woocommerce-gateway-stripe' );
-			$sections['stripe_ideal']      = __( 'Stripe iDeal', 'woocommerce-gateway-stripe' );
-			$sections['stripe_p24']        = __( 'Stripe P24', 'woocommerce-gateway-stripe' );
-			$sections['stripe_alipay']     = __( 'Stripe Alipay', 'woocommerce-gateway-stripe' );
-			$sections['stripe_sepa']       = __( 'Stripe SEPA Direct Debit', 'woocommerce-gateway-stripe' );
-			$sections['stripe_multibanco'] = __( 'Stripe Multibanco', 'woocommerce-gateway-stripe' );
+			$sections['stripe_bancontact'] = __('Stripe Bancontact', 'woocommerce-gateway-stripe');
+			$sections['stripe_sofort']     = __('Stripe SOFORT', 'woocommerce-gateway-stripe');
+			$sections['stripe_giropay']    = __('Stripe Giropay', 'woocommerce-gateway-stripe');
+			$sections['stripe_eps']        = __('Stripe EPS', 'woocommerce-gateway-stripe');
+			$sections['stripe_ideal']      = __('Stripe iDeal', 'woocommerce-gateway-stripe');
+			$sections['stripe_p24']        = __('Stripe P24', 'woocommerce-gateway-stripe');
+			$sections['stripe_alipay']     = __('Stripe Alipay', 'woocommerce-gateway-stripe');
+			$sections['stripe_sepa']       = __('Stripe SEPA Direct Debit', 'woocommerce-gateway-stripe');
+			$sections['stripe_multibanco'] = __('Stripe Multibanco', 'woocommerce-gateway-stripe');
 
 			return $sections;
 		}

includes/class-wc-stripe-webhook-handler.php

Spacing +183 added lines, -183 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -32,9 +32,9 @@ 
 	 */
 	public function __construct() {
 		$this->retry_interval = 2;
-		$stripe_settings      = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode       = ( ! empty( $stripe_settings['testmode'] ) && 'yes' === $stripe_settings['testmode'] ) ? true : false;
-		add_action( 'woocommerce_api_wc_stripe', array( $this, 'check_for_webhook' ) );
+		$stripe_settings      = get_option('woocommerce_stripe_settings', array());
+		$this->testmode       = ( ! empty($stripe_settings['testmode']) && 'yes' === $stripe_settings['testmode']) ? true : false;
+		add_action('woocommerce_api_wc_stripe', array($this, 'check_for_webhook'));
 	}
 
 	/**
@@ -44,24 +44,24 @@ 
 	 * @version 4.0.0
 	 */
 	public function check_for_webhook() {
-		if ( ( 'POST' !== $_SERVER['REQUEST_METHOD'] )
-			|| ! isset( $_GET['wc-api'] )
-			|| ( 'wc_stripe' !== $_GET['wc-api'] )
+		if (('POST' !== $_SERVER['REQUEST_METHOD'])
+			|| ! isset($_GET['wc-api'])
+			|| ('wc_stripe' !== $_GET['wc-api'])
 		) {
 			return;
 		}
 
-		$request_body    = file_get_contents( 'php://input' );
-		$request_headers = array_change_key_case( $this->get_request_headers(), CASE_UPPER );
+		$request_body    = file_get_contents('php://input');
+		$request_headers = array_change_key_case($this->get_request_headers(), CASE_UPPER);
 
 		// Validate it to make sure it is legit.
-		if ( $this->is_valid_request( $request_headers, $request_body ) ) {
-			$this->process_webhook( $request_body );
-			status_header( 200 );
+		if ($this->is_valid_request($request_headers, $request_body)) {
+			$this->process_webhook($request_body);
+			status_header(200);
 			exit;
 		} else {
-			WC_Stripe_Logger::log( 'Incoming webhook failed validation: ' . print_r( $request_body, true ) );
-			status_header( 400 );
+			WC_Stripe_Logger::log('Incoming webhook failed validation: ' . print_r($request_body, true));
+			status_header(400);
 			exit;
 		}
 	}
@@ -76,12 +76,12 @@ 
 	 * @param string $request_body The request body from Stripe.
 	 * @return bool
 	 */
-	public function is_valid_request( $request_headers = null, $request_body = null ) {
-		if ( null === $request_headers || null === $request_body ) {
+	public function is_valid_request($request_headers = null, $request_body = null) {
+		if (null === $request_headers || null === $request_body) {
 			return false;
 		}
 
-		if ( ! empty( $request_headers['USER-AGENT'] ) && ! preg_match( '/Stripe/', $request_headers['USER-AGENT'] ) ) {
+		if ( ! empty($request_headers['USER-AGENT']) && ! preg_match('/Stripe/', $request_headers['USER-AGENT'])) {
 			return false;
 		}
 
@@ -97,12 +97,12 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_request_headers() {
-		if ( ! function_exists( 'getallheaders' ) ) {
+		if ( ! function_exists('getallheaders')) {
 			$headers = array();
 
-			foreach ( $_SERVER as $name => $value ) {
-				if ( 'HTTP_' === substr( $name, 0, 5 ) ) {
-					$headers[ str_replace( ' ', '-', ucwords( strtolower( str_replace( '_', ' ', substr( $name, 5 ) ) ) ) ) ] = $value;
+			foreach ($_SERVER as $name => $value) {
+				if ('HTTP_' === substr($name, 0, 5)) {
+					$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
 				}
 			}
 
@@ -121,30 +121,30 @@ 
 	 * @param object $notification
 	 * @param bool $retry
 	 */
-	public function process_webhook_payment( $notification, $retry = true ) {
+	public function process_webhook_payment($notification, $retry = true) {
 		// The following 2 payment methods are synchronous so does not need to be handle via webhook.
-		if ( 'card' === $notification->data->object->type || 'sepa_debit' === $notification->data->object->type ) {
+		if ('card' === $notification->data->object->type || 'sepa_debit' === $notification->data->object->type) {
 			return;
 		}
 
-		$order = WC_Stripe_Helper::get_order_by_source_id( $notification->data->object->id );
+		$order = WC_Stripe_Helper::get_order_by_source_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via source ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via source ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id  = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 		$source_id = $notification->data->object->id;
 
-		$is_pending_receiver = ( 'receiver' === $notification->data->object->flow );
+		$is_pending_receiver = ('receiver' === $notification->data->object->flow);
 
 		try {
-			if ( 'processing' === $order->get_status() || 'completed' === $order->get_status() ) {
+			if ('processing' === $order->get_status() || 'completed' === $order->get_status()) {
 				return;
 			}
 
-			if ( 'on-hold' === $order->get_status() && ! $is_pending_receiver ) {
+			if ('on-hold' === $order->get_status() && ! $is_pending_receiver) {
 				return;
 			}
 
@@ -152,94 +152,94 @@ 
 			$response = null;
 
 			// This will throw exception if not valid.
-			$this->validate_minimum_order_amount( $order );
+			$this->validate_minimum_order_amount($order);
 
-			WC_Stripe_Logger::log( "Info: (Webhook) Begin processing payment for order $order_id for the amount of {$order->get_total()}" );
+			WC_Stripe_Logger::log("Info: (Webhook) Begin processing payment for order $order_id for the amount of {$order->get_total()}");
 
 			// Prep source object.
 			$source_object           = new stdClass();
 			$source_object->token_id = '';
-			$source_object->customer = $this->get_stripe_customer_id( $order );
+			$source_object->customer = $this->get_stripe_customer_id($order);
 			$source_object->source   = $source_id;
 
 			// Make the request.
-			$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $source_object ), 'charges', 'POST', true );
+			$response = WC_Stripe_API::request($this->generate_payment_request($order, $source_object), 'charges', 'POST', true);
 			$headers  = $response['headers'];
 			$response = $response['body'];
 
-			if ( ! empty( $response->error ) ) {
+			if ( ! empty($response->error)) {
 				// Customer param wrong? The user may have been deleted on stripe's end. Remove customer_id. Can be retried without.
-				if ( $this->is_no_such_customer_error( $response->error ) ) {
-					if ( WC_Stripe_Helper::is_pre_30() ) {
-						delete_user_meta( $order->customer_user, '_stripe_customer_id' );
-						delete_post_meta( $order_id, '_stripe_customer_id' );
+				if ($this->is_no_such_customer_error($response->error)) {
+					if (WC_Stripe_Helper::is_pre_30()) {
+						delete_user_meta($order->customer_user, '_stripe_customer_id');
+						delete_post_meta($order_id, '_stripe_customer_id');
 					} else {
-						delete_user_meta( $order->get_customer_id(), '_stripe_customer_id' );
-						$order->delete_meta_data( '_stripe_customer_id' );
+						delete_user_meta($order->get_customer_id(), '_stripe_customer_id');
+						$order->delete_meta_data('_stripe_customer_id');
 						$order->save();
 					}
 				}
 
-				if ( $this->is_no_such_token_error( $response->error ) && $prepared_source->token_id ) {
+				if ($this->is_no_such_token_error($response->error) && $prepared_source->token_id) {
 					// Source param wrong? The CARD may have been deleted on stripe's end. Remove token and show message.
-					$wc_token = WC_Payment_Tokens::get( $prepared_source->token_id );
+					$wc_token = WC_Payment_Tokens::get($prepared_source->token_id);
 					$wc_token->delete();
-					$localized_message = __( 'This card is no longer available and has been removed.', 'woocommerce-gateway-stripe' );
-					$order->add_order_note( $localized_message );
-					throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+					$localized_message = __('This card is no longer available and has been removed.', 'woocommerce-gateway-stripe');
+					$order->add_order_note($localized_message);
+					throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 				}
 
 				// We want to retry.
-				if ( $this->is_retryable_error( $response->error ) ) {
-					if ( $retry ) {
+				if ($this->is_retryable_error($response->error)) {
+					if ($retry) {
 						// Don't do anymore retries after this.
-						if ( 5 <= $this->retry_interval ) {
+						if (5 <= $this->retry_interval) {
 
-							return $this->process_webhook_payment( $notification, false );
+							return $this->process_webhook_payment($notification, false);
 						}
 
-						sleep( $this->retry_interval );
+						sleep($this->retry_interval);
 
 						$this->retry_interval++;
-						return $this->process_webhook_payment( $notification, true );
+						return $this->process_webhook_payment($notification, true);
 					} else {
-						$localized_message = __( 'Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe' );
-						$order->add_order_note( $localized_message );
-						throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+						$localized_message = __('Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe');
+						$order->add_order_note($localized_message);
+						throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 					}
 				}
 
 				$localized_messages = WC_Stripe_Helper::get_localized_messages();
 
-				if ( 'card_error' === $response->error->type ) {
-					$localized_message = isset( $localized_messages[ $response->error->code ] ) ? $localized_messages[ $response->error->code ] : $response->error->message;
+				if ('card_error' === $response->error->type) {
+					$localized_message = isset($localized_messages[$response->error->code]) ? $localized_messages[$response->error->code] : $response->error->message;
 				} else {
-					$localized_message = isset( $localized_messages[ $response->error->type ] ) ? $localized_messages[ $response->error->type ] : $response->error->message;
+					$localized_message = isset($localized_messages[$response->error->type]) ? $localized_messages[$response->error->type] : $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);
 			}
 
 			// To prevent double processing the order on WC side.
-			if ( ! $this->is_original_request( $headers ) ) {
+			if ( ! $this->is_original_request($headers)) {
 				return;
 			}
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment', $response, $order );
+			do_action('wc_gateway_stripe_process_webhook_payment', $response, $order);
 
-			$this->process_response( $response, $order );
+			$this->process_response($response, $order);
 
-		} catch ( WC_Stripe_Exception $e ) {
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification, $e );
+			do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification, $e);
 
-			$statuses = array( 'pending', 'failed' );
+			$statuses = array('pending', 'failed');
 
-			if ( $order->has_status( $statuses ) ) {
-				$this->send_failed_order_email( $order_id );
+			if ($order->has_status($statuses)) {
+				$this->send_failed_order_email($order_id);
 			}
 		}
 	}
@@ -252,21 +252,21 @@ 
 	 * @since 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_dispute( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+	public function process_webhook_dispute($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->charge );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->charge);
 			return;
 		}
 
 		/* translators: 1) The URL to the order. */
-		$order->update_status( 'on-hold', sprintf( __( 'A dispute was created for this order. Response is needed. Please go to your <a href="%s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review this dispute.', 'woocommerce-gateway-stripe' ), $this->get_transaction_url( $order ) ) );
+		$order->update_status('on-hold', sprintf(__('A dispute was created for this order. Response is needed. Please go to your <a href="%s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review this dispute.', 'woocommerce-gateway-stripe'), $this->get_transaction_url($order)));
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		$this->send_failed_order_email( $order_id );
+		$this->send_failed_order_email($order_id);
 	}
 
 	/**
@@ -277,43 +277,43 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_capture( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_capture($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		if ( 'stripe' === ( WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method() ) ) {
-			$charge   = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_transaction_id', true ) : $order->get_transaction_id();
-			$captured = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_stripe_charge_captured', true ) : $order->get_meta( '_stripe_charge_captured', true );
+		if ('stripe' === (WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method())) {
+			$charge   = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_transaction_id', true) : $order->get_transaction_id();
+			$captured = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_stripe_charge_captured', true) : $order->get_meta('_stripe_charge_captured', true);
 
-			if ( $charge && 'no' === $captured ) {
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_stripe_charge_captured', 'yes' ) : $order->update_meta_data( '_stripe_charge_captured', 'yes' );
+			if ($charge && 'no' === $captured) {
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_stripe_charge_captured', 'yes') : $order->update_meta_data('_stripe_charge_captured', 'yes');
 
 				// Store other data such as fees
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_transaction_id', $notification->data->object->id ) : $order->set_transaction_id( $notification->data->object->id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_transaction_id', $notification->data->object->id) : $order->set_transaction_id($notification->data->object->id);
 
-				if ( isset( $notification->data->object->balance_transaction ) ) {
-					$this->update_fees( $order, $notification->data->object->balance_transaction );
+				if (isset($notification->data->object->balance_transaction)) {
+					$this->update_fees($order, $notification->data->object->balance_transaction);
 				}
 
 				// Check and see if capture is partial.
-				if ( $this->is_partial_capture( $notification ) ) {
-					$partial_amount = $this->get_partial_amount_to_charge( $notification );
-					$order->set_total( $partial_amount );
-					$order->add_order_note( sprintf( __( 'This charge was partially captured via Stripe Dashboard in the amount of: %s', 'woocommerce-gateway-stripe' ), $partial_amount ) );
+				if ($this->is_partial_capture($notification)) {
+					$partial_amount = $this->get_partial_amount_to_charge($notification);
+					$order->set_total($partial_amount);
+					$order->add_order_note(sprintf(__('This charge was partially captured via Stripe Dashboard in the amount of: %s', 'woocommerce-gateway-stripe'), $partial_amount));
 				} else {
-					$order->payment_complete( $notification->data->object->id );
+					$order->payment_complete($notification->data->object->id);
 
 					/* translators: transaction id */
-					$order->add_order_note( sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $notification->data->object->id ) );
+					$order->add_order_note(sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $notification->data->object->id));
 				}
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
@@ -328,38 +328,38 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_charge_succeeded( $notification ) {
+	public function process_webhook_charge_succeeded($notification) {
 		// The following payment methods are synchronous so does not need to be handle via webhook.
-		if ( ( isset( $notification->data->object->source->type ) && 'card' === $notification->data->object->source->type ) || ( isset( $notification->data->object->source->type ) && 'three_d_secure' === $notification->data->object->source->type ) ) {
+		if ((isset($notification->data->object->source->type) && 'card' === $notification->data->object->source->type) || (isset($notification->data->object->source->type) && 'three_d_secure' === $notification->data->object->source->type)) {
 			return;
 		}
 
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		if ( 'on-hold' !== $order->get_status() ) {
+		if ('on-hold' !== $order->get_status()) {
 			return;
 		}
 
 		// Store other data such as fees
-		WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_transaction_id', $notification->data->object->id ) : $order->set_transaction_id( $notification->data->object->id );
+		WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_transaction_id', $notification->data->object->id) : $order->set_transaction_id($notification->data->object->id);
 
-		if ( isset( $notification->data->object->balance_transaction ) ) {
-			$this->update_fees( $order, $notification->data->object->balance_transaction );
+		if (isset($notification->data->object->balance_transaction)) {
+			$this->update_fees($order, $notification->data->object->balance_transaction);
 		}
 
-		$order->payment_complete( $notification->data->object->id );
+		$order->payment_complete($notification->data->object->id);
 
 		/* translators: transaction id */
-		$order->add_order_note( sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $notification->data->object->id ) );
+		$order->add_order_note(sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $notification->data->object->id));
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -372,23 +372,23 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_charge_failed( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_charge_failed($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		if ( 'on-hold' !== $order->get_status() ) {
+		if ('on-hold' !== $order->get_status()) {
 			return;
 		}
 
-		$order->update_status( 'failed', __( 'This payment failed to clear.', 'woocommerce-gateway-stripe' ) );
+		$order->update_status('failed', __('This payment failed to clear.', 'woocommerce-gateway-stripe'));
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 	}
 
 	/**
@@ -399,23 +399,23 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_source_canceled( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_source_canceled($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		if ( 'on-hold' !== $order->get_status() || 'cancelled' !== $order->get_status() ) {
+		if ('on-hold' !== $order->get_status() || 'cancelled' !== $order->get_status()) {
 			return;
 		}
 
-		$order->update_status( 'cancelled', __( 'This payment has cancelled.', 'woocommerce-gateway-stripe' ) );
+		$order->update_status('cancelled', __('This payment has cancelled.', 'woocommerce-gateway-stripe'));
 
-		do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+		do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 	}
 
 	/**
@@ -425,57 +425,57 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_refund( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->id );
+	public function process_webhook_refund($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->id);
 			return;
 		}
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		if ( 'stripe' === ( WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method() ) ) {
-			$charge    = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_transaction_id', true ) : $order->get_transaction_id();
-			$captured  = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_stripe_charge_captured', true ) : $order->get_meta( '_stripe_charge_captured', true );
-			$refund_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_stripe_refund_id', true ) : $order->get_meta( '_stripe_refund_id', true );
+		if ('stripe' === (WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method())) {
+			$charge    = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_transaction_id', true) : $order->get_transaction_id();
+			$captured  = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_stripe_charge_captured', true) : $order->get_meta('_stripe_charge_captured', true);
+			$refund_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_stripe_refund_id', true) : $order->get_meta('_stripe_refund_id', true);
 
 			// If the refund ID matches, don't continue to prevent double refunding.
-			if ( $notification->data->object->refunds->data[0]->id === $refund_id ) {
+			if ($notification->data->object->refunds->data[0]->id === $refund_id) {
 				return;
 			}
 
 			// Only refund captured charge.
-			if ( $charge ) {
-				$reason = ( isset( $captured ) && 'yes' === $captured ) ? __( 'Refunded via Stripe Dashboard', 'woocommerce-gateway-stripe' ) : __( 'Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe' );
+			if ($charge) {
+				$reason = (isset($captured) && 'yes' === $captured) ? __('Refunded via Stripe Dashboard', 'woocommerce-gateway-stripe') : __('Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe');
 
 				// Create the refund.
-				$refund = wc_create_refund( array(
+				$refund = wc_create_refund(array(
 					'order_id' => $order_id,
-					'amount'   => $this->get_refund_amount( $notification ),
+					'amount'   => $this->get_refund_amount($notification),
 					'reason'   => $reason,
-				) );
+				));
 
-				if ( is_wp_error( $refund ) ) {
-					WC_Stripe_Logger::log( $refund->get_error_message() );
+				if (is_wp_error($refund)) {
+					WC_Stripe_Logger::log($refund->get_error_message());
 				}
 
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_stripe_refund_id', $notification->data->object->refunds->data[0]->id ) : $order->update_meta_data( '_stripe_refund_id', $notification->data->object->refunds->data[0]->id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_stripe_refund_id', $notification->data->object->refunds->data[0]->id) : $order->update_meta_data('_stripe_refund_id', $notification->data->object->refunds->data[0]->id);
 
-				$amount = wc_price( $notification->data->object->refunds->data[0]->amount / 100 );
+				$amount = wc_price($notification->data->object->refunds->data[0]->amount / 100);
 
-				if ( in_array( strtolower( $order->get_currency() ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-					$amount = wc_price( $notification->data->object->refunds->data[0]->amount );
+				if (in_array(strtolower($order->get_currency()), WC_Stripe_Helper::no_decimal_currencies())) {
+					$amount = wc_price($notification->data->object->refunds->data[0]->amount);
 				}
 
-				if ( isset( $notification->data->object->refunds->data[0]->balance_transaction ) ) {
-					$this->update_fees( $order, $notification->data->object->refunds->data[0]->balance_transaction );
+				if (isset($notification->data->object->refunds->data[0]->balance_transaction)) {
+					$this->update_fees($order, $notification->data->object->refunds->data[0]->balance_transaction);
 				}
 
 				/* translators: 1) dollar amount 2) transaction id 3) refund message */
-				$refund_message = ( isset( $captured ) && 'yes' === $captured ) ? sprintf( __( 'Refunded %1$s - Refund ID: %2$s - %3$s', 'woocommerce-gateway-stripe' ), $amount, $notification->data->object->refunds->data[0]->id, $reason ) : __( 'Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe' );
+				$refund_message = (isset($captured) && 'yes' === $captured) ? sprintf(__('Refunded %1$s - Refund ID: %2$s - %3$s', 'woocommerce-gateway-stripe'), $amount, $notification->data->object->refunds->data[0]->id, $reason) : __('Pre-Authorization Released via Stripe Dashboard', 'woocommerce-gateway-stripe');
 
-				$order->add_order_note( $refund_message );
+				$order->add_order_note($refund_message);
 			}
 		}
 	}
@@ -486,21 +486,21 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_opened( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+	public function process_review_opened($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->charge );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->charge);
 			return;
 		}
 
 		/* translators: 1) The URL to the order. 2) The reason type. */
-		$message = sprintf( __( 'A review has been opened for this order. Action is needed. Please go to your <a href="%1$s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review the issue. Reason: (%2$s)', 'woocommerce-gateway-stripe' ), $this->get_transaction_url( $order ), $notification->data->object->reason );
+		$message = sprintf(__('A review has been opened for this order. Action is needed. Please go to your <a href="%1$s" title="Stripe Dashboard" target="_blank">Stripe Dashboard</a> to review the issue. Reason: (%2$s)', 'woocommerce-gateway-stripe'), $this->get_transaction_url($order), $notification->data->object->reason);
 
-		if ( apply_filters( 'wc_stripe_webhook_review_change_order_status', true, $order, $notification ) ) {
-			$order->update_status( 'on-hold', $message );
+		if (apply_filters('wc_stripe_webhook_review_change_order_status', true, $order, $notification)) {
+			$order->update_status('on-hold', $message);
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 	}
 
@@ -510,25 +510,25 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_closed( $notification ) {
-		$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+	public function process_review_closed($notification) {
+		$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via charge ID: ' . $notification->data->object->charge );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via charge ID: ' . $notification->data->object->charge);
 			return;
 		}
 
 		/* translators: 1) The reason type. */
-		$message = sprintf( __( 'The opened review for this order is now closed. Reason: (%s)', 'woocommerce-gateway-stripe' ), $notification->data->object->reason );
+		$message = sprintf(__('The opened review for this order is now closed. Reason: (%s)', 'woocommerce-gateway-stripe'), $notification->data->object->reason);
 
-		if ( 'on-hold' === $order->get_status() ) {
-			if ( apply_filters( 'wc_stripe_webhook_review_change_order_status', true, $order, $notification ) ) {
-				$order->update_status( 'processing', $message );
+		if ('on-hold' === $order->get_status()) {
+			if (apply_filters('wc_stripe_webhook_review_change_order_status', true, $order, $notification)) {
+				$order->update_status('processing', $message);
 			} else {
-				$order->add_order_note( $message );
+				$order->add_order_note($message);
 			}
 		} else {
-			$order->add_order_note( $message );
+			$order->add_order_note($message);
 		}
 	}
 
@@ -539,7 +539,7 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function is_partial_capture( $notification ) {
+	public function is_partial_capture($notification) {
 		return 0 < $notification->data->object->amount_refunded;
 	}
 
@@ -550,11 +550,11 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function get_refund_amount( $notification ) {
-		if ( $this->is_partial_capture( $notification ) ) {
+	public function get_refund_amount($notification) {
+		if ($this->is_partial_capture($notification)) {
 			$amount = $notification->data->object->refunds->data[0]->amount / 100;
 
-			if ( in_array( strtolower( $notification->data->object->currency ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
+			if (in_array(strtolower($notification->data->object->currency), WC_Stripe_Helper::no_decimal_currencies())) {
 				$amount = $notification->data->object->refunds->data[0]->amount;
 			}
 
@@ -571,12 +571,12 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function get_partial_amount_to_charge( $notification ) {
-		if ( $this->is_partial_capture( $notification ) ) {
-			$amount = ( $notification->data->object->amount - $notification->data->object->amount_refunded ) / 100;
+	public function get_partial_amount_to_charge($notification) {
+		if ($this->is_partial_capture($notification)) {
+			$amount = ($notification->data->object->amount - $notification->data->object->amount_refunded) / 100;
 
-			if ( in_array( strtolower( $notification->data->object->currency ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-				$amount = ( $notification->data->object->amount - $notification->data->object->amount_refunded );
+			if (in_array(strtolower($notification->data->object->currency), WC_Stripe_Helper::no_decimal_currencies())) {
+				$amount = ($notification->data->object->amount - $notification->data->object->amount_refunded);
 			}
 
 			return $amount;
@@ -592,44 +592,44 @@ 
 	 * @version 4.0.0
 	 * @param string $request_body
 	 */
-	public function process_webhook( $request_body ) {
-		$notification = json_decode( $request_body );
+	public function process_webhook($request_body) {
+		$notification = json_decode($request_body);
 
-		switch ( $notification->type ) {
+		switch ($notification->type) {
 			case 'source.chargeable':
-				$this->process_webhook_payment( $notification );
+				$this->process_webhook_payment($notification);
 				break;
 
 			case 'source.canceled':
-				$this->process_webhook_source_canceled( $notification );
+				$this->process_webhook_source_canceled($notification);
 				break;
 
 			case 'charge.succeeded':
-				$this->process_webhook_charge_succeeded( $notification );
+				$this->process_webhook_charge_succeeded($notification);
 				break;
 
 			case 'charge.failed':
-				$this->process_webhook_charge_failed( $notification );
+				$this->process_webhook_charge_failed($notification);
 				break;
 
 			case 'charge.captured':
-				$this->process_webhook_capture( $notification );
+				$this->process_webhook_capture($notification);
 				break;
 
 			case 'charge.dispute.created':
-				$this->process_webhook_dispute( $notification );
+				$this->process_webhook_dispute($notification);
 				break;
 
 			case 'charge.refunded':
-				$this->process_webhook_refund( $notification );
+				$this->process_webhook_refund($notification);
 				break;
 
 			case 'review.opened':
-				$this->process_review_opened( $notification );
+				$this->process_review_opened($notification);
 				break;
 
 			case 'review.closed':
-				$this->process_review_closed( $notification );
+				$this->process_review_closed($notification);
 				break;
 
 		}

includes/payment-methods/class-wc-stripe-payment-request.php

Spacing +288 added lines, -288 removed lines

@@ -6,7 +6,7 @@ 
  * @since   4.0.0
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -71,36 +71,36 @@ 
 	 */
 	public function __construct() {
 		self::$_this                   = $this;
-		$this->stripe_settings         = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode                = ( ! empty( $this->stripe_settings['testmode'] ) && 'yes' === $this->stripe_settings['testmode'] ) ? true : false;
-		$this->publishable_key         = ! empty( $this->stripe_settings['publishable_key'] ) ? $this->stripe_settings['publishable_key'] : '';
-		$this->secret_key              = ! empty( $this->stripe_settings['secret_key'] ) ? $this->stripe_settings['secret_key'] : '';
-		$this->stripe_checkout_enabled = isset( $this->stripe_settings['stripe_checkout'] ) && 'yes' === $this->stripe_settings['stripe_checkout'];
-		$this->total_label             = ! empty( $this->stripe_settings['statement_descriptor'] ) ? WC_Stripe_Helper::clean_statement_descriptor( $this->stripe_settings['statement_descriptor'] ) : '';
+		$this->stripe_settings         = get_option('woocommerce_stripe_settings', array());
+		$this->testmode                = ( ! empty($this->stripe_settings['testmode']) && 'yes' === $this->stripe_settings['testmode']) ? true : false;
+		$this->publishable_key         = ! empty($this->stripe_settings['publishable_key']) ? $this->stripe_settings['publishable_key'] : '';
+		$this->secret_key              = ! empty($this->stripe_settings['secret_key']) ? $this->stripe_settings['secret_key'] : '';
+		$this->stripe_checkout_enabled = isset($this->stripe_settings['stripe_checkout']) && 'yes' === $this->stripe_settings['stripe_checkout'];
+		$this->total_label             = ! empty($this->stripe_settings['statement_descriptor']) ? WC_Stripe_Helper::clean_statement_descriptor($this->stripe_settings['statement_descriptor']) : '';
 
-		if ( $this->testmode ) {
-			$this->publishable_key = ! empty( $this->stripe_settings['test_publishable_key'] ) ? $this->stripe_settings['test_publishable_key'] : '';
-			$this->secret_key      = ! empty( $this->stripe_settings['test_secret_key'] ) ? $this->stripe_settings['test_secret_key'] : '';
+		if ($this->testmode) {
+			$this->publishable_key = ! empty($this->stripe_settings['test_publishable_key']) ? $this->stripe_settings['test_publishable_key'] : '';
+			$this->secret_key      = ! empty($this->stripe_settings['test_secret_key']) ? $this->stripe_settings['test_secret_key'] : '';
 		}
 
-		$this->total_label = str_replace( "'", '', $this->total_label ) . apply_filters( 'wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)' );
+		$this->total_label = str_replace("'", '', $this->total_label) . apply_filters('wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)');
 
 		// Checks if Stripe Gateway is enabled.
-		if ( empty( $this->stripe_settings ) || ( isset( $this->stripe_settings['enabled'] ) && 'yes' !== $this->stripe_settings['enabled'] ) ) {
+		if (empty($this->stripe_settings) || (isset($this->stripe_settings['enabled']) && 'yes' !== $this->stripe_settings['enabled'])) {
 			return;
 		}
 
 		// Checks if Payment Request is enabled.
-		if ( ! isset( $this->stripe_settings['payment_request'] ) || 'yes' !== $this->stripe_settings['payment_request'] ) {
+		if ( ! isset($this->stripe_settings['payment_request']) || 'yes' !== $this->stripe_settings['payment_request']) {
 			return;
 		}
 
 		// Don't load for change payment method page.
-		if ( isset( $_GET['change_payment_method'] ) ) {
+		if (isset($_GET['change_payment_method'])) {
 			return;
 		}
 
-		add_action( 'template_redirect', array( $this, 'set_session' ) );
+		add_action('template_redirect', array($this, 'set_session'));
 		$this->init();
 	}
 
@@ -111,7 +111,7 @@ 
 	 * @return bool
 	 */
 	public function are_keys_set() {
-		if ( empty( $this->secret_key ) || empty( $this->publishable_key ) ) {
+		if (empty($this->secret_key) || empty($this->publishable_key)) {
 			return false;
 		}
 
@@ -135,18 +135,18 @@ 
 	 * @since 4.0.0
 	 */
 	public function set_session() {
-		if ( ! is_product() || ( isset( WC()->session ) && WC()->session->has_session() ) ) {
+		if ( ! is_product() || (isset(WC()->session) && WC()->session->has_session())) {
 			return;
 		}
 
-		$session_class = apply_filters( 'woocommerce_session_handler', 'WC_Session_Handler' );
+		$session_class = apply_filters('woocommerce_session_handler', 'WC_Session_Handler');
 		$wc_session    = new $session_class();
 
-		if ( version_compare( WC_VERSION, '3.3', '>=' ) ) {
+		if (version_compare(WC_VERSION, '3.3', '>=')) {
 			$wc_session->init();
 		}
 
-		$wc_session->set_customer_session_cookie( true );
+		$wc_session->set_customer_session_cookie(true);
 	}
 
 	/**
@@ -156,40 +156,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function init() {
-		add_action( 'wp_enqueue_scripts', array( $this, 'scripts' ) );
+		add_action('wp_enqueue_scripts', array($this, 'scripts'));
 
 		/*
 		 * In order to display the Payment Request button in the correct position,
 		 * a new hook was added to WooCommerce 3.0. In older versions of WooCommerce,
 		 * CSS is used to position the button.
 		 */
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		if (WC_Stripe_Helper::is_pre_30()) {
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_separator_html'), 2);
 		} else {
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_separator_html'), 2);
 		}
 
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'wc_ajax_wc_stripe_get_cart_details', array( $this, 'ajax_get_cart_details' ) );
-		add_action( 'wc_ajax_wc_stripe_get_shipping_options', array( $this, 'ajax_get_shipping_options' ) );
-		add_action( 'wc_ajax_wc_stripe_update_shipping_method', array( $this, 'ajax_update_shipping_method' ) );
-		add_action( 'wc_ajax_wc_stripe_create_order', array( $this, 'ajax_create_order' ) );
-		add_action( 'wc_ajax_wc_stripe_add_to_cart', array( $this, 'ajax_add_to_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_get_selected_product_data', array( $this, 'ajax_get_selected_product_data' ) );
-		add_action( 'wc_ajax_wc_stripe_clear_cart', array( $this, 'ajax_clear_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_log_errors', array( $this, 'ajax_log_errors' ) );
+		add_action('wc_ajax_wc_stripe_get_cart_details', array($this, 'ajax_get_cart_details'));
+		add_action('wc_ajax_wc_stripe_get_shipping_options', array($this, 'ajax_get_shipping_options'));
+		add_action('wc_ajax_wc_stripe_update_shipping_method', array($this, 'ajax_update_shipping_method'));
+		add_action('wc_ajax_wc_stripe_create_order', array($this, 'ajax_create_order'));
+		add_action('wc_ajax_wc_stripe_add_to_cart', array($this, 'ajax_add_to_cart'));
+		add_action('wc_ajax_wc_stripe_get_selected_product_data', array($this, 'ajax_get_selected_product_data'));
+		add_action('wc_ajax_wc_stripe_clear_cart', array($this, 'ajax_clear_cart'));
+		add_action('wc_ajax_wc_stripe_log_errors', array($this, 'ajax_log_errors'));
 
-		add_filter( 'woocommerce_gateway_title', array( $this, 'filter_gateway_title' ), 10, 2 );
-		add_filter( 'woocommerce_validate_postcode', array( $this, 'postal_code_validation' ), 10, 3 );
+		add_filter('woocommerce_gateway_title', array($this, 'filter_gateway_title'), 10, 2);
+		add_filter('woocommerce_validate_postcode', array($this, 'postal_code_validation'), 10, 3);
 
-		add_action( 'woocommerce_checkout_order_processed', array( $this, 'add_order_meta' ), 10, 2 );
+		add_action('woocommerce_checkout_order_processed', array($this, 'add_order_meta'), 10, 2);
 	}
 
 	/**
@@ -200,7 +200,7 @@ 
 	 * @return string
 	 */
 	public function get_button_type() {
-		return isset( $this->stripe_settings['payment_request_button_type'] ) ? $this->stripe_settings['payment_request_button_type'] : 'default';
+		return isset($this->stripe_settings['payment_request_button_type']) ? $this->stripe_settings['payment_request_button_type'] : 'default';
 	}
 
 	/**
@@ -211,7 +211,7 @@ 
 	 * @return string
 	 */
 	public function get_button_theme() {
-		return isset( $this->stripe_settings['payment_request_button_theme'] ) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
+		return isset($this->stripe_settings['payment_request_button_theme']) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
 	}
 
 	/**
@@ -222,7 +222,7 @@ 
 	 * @return string
 	 */
 	public function get_button_height() {
-		return isset( $this->stripe_settings['payment_request_button_height'] ) ? str_replace( 'px', '', $this->stripe_settings['payment_request_button_height'] ) : '64';
+		return isset($this->stripe_settings['payment_request_button_height']) ? str_replace('px', '', $this->stripe_settings['payment_request_button_height']) : '64';
 	}
 
 	/**
@@ -232,40 +232,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_product_data() {
-		if ( ! is_product() ) {
+		if ( ! is_product()) {
 			return false;
 		}
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
 		$data  = array();
 		$items = array();
 
 		$items[] = array(
 			'label'  => WC_Stripe_Helper::is_pre_30() ? $product->name : $product->get_name(),
-			'amount' => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price() ),
+			'amount' => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price()),
 		);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 		}
 
-		if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+		if (wc_shipping_enabled() && $product->needs_shipping()) {
 			$items[] = array(
-				'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 
-			$data['shippingOptions']  = array(
+			$data['shippingOptions'] = array(
 				'id'     => 'pending',
-				'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 				'detail' => '',
 				'amount' => 0,
 			);
@@ -273,41 +273,41 @@ 
 
 		$data['displayItems'] = $items;
 		$data['total'] = array(
-			'label'   => apply_filters( 'wc_stripe_payment_request_total_label', $this->total_label ),
-			'amount'  => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price() ),
+			'label'   => apply_filters('wc_stripe_payment_request_total_label', $this->total_label),
+			'amount'  => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price()),
 			'pending' => true,
 		);
 
-		$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-		$data['currency']        = strtolower( get_woocommerce_currency() );
-		$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+		$data['currency']        = strtolower(get_woocommerce_currency());
+		$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		return apply_filters( 'wc_stripe_payment_request_product_data', $data, $product );
+		return apply_filters('wc_stripe_payment_request_product_data', $data, $product);
 	}
 
 	/**
 	 * Filters the gateway title to reflect Payment Request type
 	 *
 	 */
-	public function filter_gateway_title( $title, $id ) {
+	public function filter_gateway_title($title, $id) {
 		global $post;
 
-		if ( ! is_object( $post ) ) {
+		if ( ! is_object($post)) {
 			return $title;
 		}
 
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			$method_title = get_post_meta( $post->ID, '_payment_method_title', true );
+		if (WC_Stripe_Helper::is_pre_30()) {
+			$method_title = get_post_meta($post->ID, '_payment_method_title', true);
 		} else {
-			$order        = wc_get_order( $post->ID );
-			$method_title = is_object( $order ) ? $order->get_payment_method_title() : '';
+			$order        = wc_get_order($post->ID);
+			$method_title = is_object($order) ? $order->get_payment_method_title() : '';
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Apple Pay (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Apple Pay (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Chrome Payment Request (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Chrome Payment Request (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
@@ -320,16 +320,16 @@ 
 	 * @since 3.1.4
 	 * @version 4.0.0
 	 */
-	public function postal_code_validation( $valid, $postcode, $country ) {
+	public function postal_code_validation($valid, $postcode, $country) {
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return $valid;
 		}
 
-		$payment_request_type = isset( $_POST['payment_request_type'] ) ? wc_clean( $_POST['payment_request_type'] ) : '';
+		$payment_request_type = isset($_POST['payment_request_type']) ? wc_clean($_POST['payment_request_type']) : '';
 
-		if ( 'apple_pay' !== $payment_request_type ) {
+		if ('apple_pay' !== $payment_request_type) {
 			return $valid;
 		}
 
@@ -339,7 +339,7 @@ 
 		 * the order and not let it go through. The remedy for now is just to remove this validation.
 		 * Note that this only works with shipping providers that don't validate full postal codes.
 		 */
-		if ( 'GB' === $country || 'CA' === $country ) {
+		if ('GB' === $country || 'CA' === $country) {
 			return true;
 		}
 
@@ -354,29 +354,29 @@ 
 	 * @param int $order_id
 	 * @param array $posted_data The posted data from checkout form.
 	 */
-	public function add_order_meta( $order_id, $posted_data ) {
-		if ( empty( $_POST['payment_request_type'] ) ) {
+	public function add_order_meta($order_id, $posted_data) {
+		if (empty($_POST['payment_request_type'])) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$payment_request_type = wc_clean( $_POST['payment_request_type'] );
+		$payment_request_type = wc_clean($_POST['payment_request_type']);
 
-		if ( 'apple_pay' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Apple Pay (Stripe)' );
+		if ('apple_pay' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_pre_30()) {
+				update_post_meta($order_id, '_payment_method_title', 'Apple Pay (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Apple Pay (Stripe)' );
+				$order->set_payment_method_title('Apple Pay (Stripe)');
 				$order->save();
 			}
 		}
 
-		if ( 'payment_request_api' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)' );
+		if ('payment_request_api' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_pre_30()) {
+				update_post_meta($order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Chrome Payment Request (Stripe)' );
+				$order->set_payment_method_title('Chrome Payment Request (Stripe)');
 				$order->save();
 			}
 		}
@@ -390,7 +390,7 @@ 
 	 * @return array
 	 */
 	public function supported_product_types() {
-		return apply_filters( 'wc_stripe_payment_request_supported_types', array(
+		return apply_filters('wc_stripe_payment_request_supported_types', array(
 			'simple',
 			'variable',
 			'variation',
@@ -399,7 +399,7 @@ 
 			'bundle',
 			'composite',
 			'mix-and-match',
-		) );
+		));
 	}
 
 	/**
@@ -410,15 +410,15 @@ 
 	 * @return bool
 	 */
 	public function allowed_items_in_cart() {
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
-			$_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
+		foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
+			$_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key);
 
-			if ( ! in_array( ( WC_Stripe_Helper::is_pre_30() ? $_product->product_type : $_product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! in_array((WC_Stripe_Helper::is_pre_30() ? $_product->product_type : $_product->get_type()), $this->supported_product_types())) {
 				return false;
 			}
 
 			// Pre Orders compatbility where we don't support charge upon release.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release( WC_Pre_Orders_Cart::get_pre_order_product() ) ) {
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release(WC_Pre_Orders_Cart::get_pre_order_product())) {
 				return false;
 			}
 		}
@@ -434,81 +434,81 @@ 
 	 */
 	public function scripts() {
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe Payment Request live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe Payment Request live mode requires SSL.');
 		}
 
-		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() ) {
+		if (is_product()) {
 			global $post;
 
-			$product = wc_get_product( $post->ID );
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
-			if ( apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+			if (apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 				return;
 			}
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'wc_stripe_payment_request', plugins_url( 'assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_script('wc_stripe_payment_request', plugins_url('assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery', 'stripe'), WC_STRIPE_VERSION, true);
 
 		wp_localize_script(
 			'wc_stripe_payment_request',
 			'wc_stripe_payment_request_params',
 			array(
-				'ajax_url' => WC_AJAX::get_endpoint( '%%endpoint%%' ),
+				'ajax_url' => WC_AJAX::get_endpoint('%%endpoint%%'),
 				'stripe'   => array(
 					'key'                => $this->publishable_key,
-					'allow_prepaid_card' => apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no',
+					'allow_prepaid_card' => apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no',
 				),
 				'nonce'    => array(
-					'payment'                        => wp_create_nonce( 'wc-stripe-payment-request' ),
-					'shipping'                       => wp_create_nonce( 'wc-stripe-payment-request-shipping' ),
-					'update_shipping'                => wp_create_nonce( 'wc-stripe-update-shipping-method' ),
-					'checkout'                       => wp_create_nonce( 'woocommerce-process_checkout' ),
-					'add_to_cart'                    => wp_create_nonce( 'wc-stripe-add-to-cart' ),
-					'get_selected_product_data'      => wp_create_nonce( 'wc-stripe-get-selected-product-data' ),
-					'log_errors'                     => wp_create_nonce( 'wc-stripe-log-errors' ),
-					'clear_cart'                     => wp_create_nonce( 'wc-stripe-clear-cart' ),
+					'payment'                        => wp_create_nonce('wc-stripe-payment-request'),
+					'shipping'                       => wp_create_nonce('wc-stripe-payment-request-shipping'),
+					'update_shipping'                => wp_create_nonce('wc-stripe-update-shipping-method'),
+					'checkout'                       => wp_create_nonce('woocommerce-process_checkout'),
+					'add_to_cart'                    => wp_create_nonce('wc-stripe-add-to-cart'),
+					'get_selected_product_data'      => wp_create_nonce('wc-stripe-get-selected-product-data'),
+					'log_errors'                     => wp_create_nonce('wc-stripe-log-errors'),
+					'clear_cart'                     => wp_create_nonce('wc-stripe-clear-cart'),
 				),
 				'i18n'     => array(
-					'no_prepaid_card'  => __( 'Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe' ),
+					'no_prepaid_card'  => __('Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe'),
 					/* translators: Do not translate the [option] placeholder */
-					'unknown_shipping' => __( 'Unknown shipping option "[option]".', 'woocommerce-gateway-stripe' ),
+					'unknown_shipping' => __('Unknown shipping option "[option]".', 'woocommerce-gateway-stripe'),
 				),
 				'checkout' => array(
 					'url'            => wc_get_checkout_url(),
-					'currency_code'  => strtolower( get_woocommerce_currency() ),
-					'country_code'   => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+					'currency_code'  => strtolower(get_woocommerce_currency()),
+					'country_code'   => substr(get_option('woocommerce_default_country'), 0, 2),
 					'needs_shipping' => WC()->cart->needs_shipping() ? 'yes' : 'no',
 				),
 				'button' => array(
 					'type'   => $this->get_button_type(),
 					'theme'  => $this->get_button_theme(),
 					'height' => $this->get_button_height(),
-					'locale' => substr( get_locale(), 0, 2 ), // Default format is en_US.
+					'locale' => substr(get_locale(), 0, 2), // Default format is en_US.
 				),
 				'is_product_page' => is_product(),
 				'product'         => $this->get_product_data(),
 			)
 		);
 
-		wp_enqueue_script( 'wc_stripe_payment_request' );
+		wp_enqueue_script('wc_stripe_payment_request');
 	}
 
 	/**
@@ -522,37 +522,37 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
@@ -576,42 +576,42 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
 		?>
-		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e( 'OR', 'woocommerce-gateway-stripe' ); ?> &mdash;</p>
+		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e('OR', 'woocommerce-gateway-stripe'); ?> &mdash;</p>
 		<?php
 	}
 
@@ -622,11 +622,11 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_log_errors() {
-		check_ajax_referer( 'wc-stripe-log-errors', 'security' );
+		check_ajax_referer('wc-stripe-log-errors', 'security');
 
-		$errors = wc_clean( stripslashes( $_POST['errors'] ) );
+		$errors = wc_clean(stripslashes($_POST['errors']));
 
-		WC_Stripe_Logger::log( $errors );
+		WC_Stripe_Logger::log($errors);
 
 		exit;
 	}
@@ -638,7 +638,7 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_clear_cart() {
-		check_ajax_referer( 'wc-stripe-clear-cart', 'security' );
+		check_ajax_referer('wc-stripe-clear-cart', 'security');
 
 		WC()->cart->empty_cart();
 		exit;
@@ -648,10 +648,10 @@ 
 	 * Get cart details.
 	 */
 	public function ajax_get_cart_details() {
-		check_ajax_referer( 'wc-stripe-payment-request', 'security' );
+		check_ajax_referer('wc-stripe-payment-request', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->cart->calculate_totals();
@@ -662,14 +662,14 @@ 
 		$data = array(
 			'shipping_required' => WC()->cart->needs_shipping(),
 			'order_data'        => array(
-				'currency'        => strtolower( $currency ),
-				'country_code'    => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency'        => strtolower($currency),
+				'country_code'    => substr(get_option('woocommerce_default_country'), 0, 2),
 			),
 		);
 
 		$data['order_data'] += $this->build_display_items();
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -680,47 +680,47 @@ 
 	 * @see WC_Shipping::get_packages().
 	 */
 	public function ajax_get_shipping_options() {
-		check_ajax_referer( 'wc-stripe-payment-request-shipping', 'security' );
+		check_ajax_referer('wc-stripe-payment-request-shipping', 'security');
 
 		try {
 			// Set the shipping package.
-			$posted = filter_input_array( INPUT_POST, array(
+			$posted = filter_input_array(INPUT_POST, array(
 				'country'   => FILTER_SANITIZE_STRING,
 				'state'     => FILTER_SANITIZE_STRING,
 				'postcode'  => FILTER_SANITIZE_STRING,
 				'city'      => FILTER_SANITIZE_STRING,
 				'address'   => FILTER_SANITIZE_STRING,
 				'address_2' => FILTER_SANITIZE_STRING,
-			) );
+			));
 
-			$this->calculate_shipping( apply_filters( 'wc_stripe_payment_request_shipping_posted_values', $posted ) );
+			$this->calculate_shipping(apply_filters('wc_stripe_payment_request_shipping_posted_values', $posted));
 
 			// Set the shipping options.
 			$data     = array();
 			$packages = WC()->shipping->get_packages();
 
-			if ( ! empty( $packages ) && WC()->customer->has_calculated_shipping() ) {
-				foreach ( $packages as $package_key => $package ) {
-					if ( empty( $package['rates'] ) ) {
-						throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+			if ( ! empty($packages) && WC()->customer->has_calculated_shipping()) {
+				foreach ($packages as $package_key => $package) {
+					if (empty($package['rates'])) {
+						throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 					}
 
-					foreach ( $package['rates'] as $key => $rate ) {
+					foreach ($package['rates'] as $key => $rate) {
 						$data['shipping_options'][] = array(
 							'id'       => $rate->id,
 							'label'    => $rate->label,
 							'detail'   => '',
-							'amount'   => WC_Stripe_Helper::get_stripe_amount( $rate->cost ),
+							'amount'   => WC_Stripe_Helper::get_stripe_amount($rate->cost),
 						);
 					}
 				}
 			} else {
-				throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 			}
 
-			if ( isset( $data[0] ) ) {
+			if (isset($data[0])) {
 				// Auto select the first shipping method.
-				WC()->session->set( 'chosen_shipping_methods', array( $data[0]['id'] ) );
+				WC()->session->set('chosen_shipping_methods', array($data[0]['id']));
 			}
 
 			WC()->cart->calculate_totals();
@@ -728,12 +728,12 @@ 
 			$data += $this->build_display_items();
 			$data['result'] = 'success';
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
+			wp_send_json($data);
+		} catch (Exception $e) {
 			$data += $this->build_display_items();
 			$data['result'] = 'invalid_shipping_address';
 
-			wp_send_json( $data );
+			wp_send_json($data);
 		}
 	}
 
@@ -741,22 +741,22 @@ 
 	 * Update shipping method.
 	 */
 	public function ajax_update_shipping_method() {
-		check_ajax_referer( 'wc-stripe-update-shipping-method', 'security' );
+		check_ajax_referer('wc-stripe-update-shipping-method', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
-		$shipping_method         = filter_input( INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY );
+		$chosen_shipping_methods = WC()->session->get('chosen_shipping_methods');
+		$shipping_method         = filter_input(INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
 
-		if ( is_array( $shipping_method ) ) {
-			foreach ( $shipping_method as $i => $value ) {
-				$chosen_shipping_methods[ $i ] = wc_clean( $value );
+		if (is_array($shipping_method)) {
+			foreach ($shipping_method as $i => $value) {
+				$chosen_shipping_methods[$i] = wc_clean($value);
 			}
 		}
 
-		WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
+		WC()->session->set('chosen_shipping_methods', $chosen_shipping_methods);
 
 		WC()->cart->calculate_totals();
 
@@ -764,7 +764,7 @@ 
 		$data += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -775,31 +775,31 @@ 
 	 * @return array $data
 	 */
 	public function ajax_get_selected_product_data() {
-		check_ajax_referer( 'wc-stripe-get-selected-product-data', 'security' );
+		check_ajax_referer('wc-stripe-get-selected-product-data', 'security');
 
-		$product_id = absint( $_POST['product_id'] );
-		$qty = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
+		$product_id = absint($_POST['product_id']);
+		$qty = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
 
-		$product = wc_get_product( $product_id );
+		$product = wc_get_product($product_id);
 
-		if ( 'variable' === ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-			$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+		if ('variable' === (WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+			$attributes = array_map('wc_clean', $_POST['attributes']);
 
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_pre_30()) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			if ( ! empty( $variation_id ) ) {
-				$product = wc_get_product( $variation_id );
+			if ( ! empty($variation_id)) {
+				$product = wc_get_product($variation_id);
 			}
-		} elseif ( 'simple' === ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ) ) {
-			$product = wc_get_product( $product_id );
+		} elseif ('simple' === (WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type())) {
+			$product = wc_get_product($product_id);
 		}
 
-		$total = $qty * ( WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price() );
+		$total = $qty * (WC_Stripe_Helper::is_pre_30() ? $product->price : $product->get_price());
 
 		$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';
 
@@ -807,28 +807,28 @@ 
 		$items = array();
 
 		$items[] = array(
-			'label'  => ( WC_Stripe_Helper::is_pre_30() ? $product->name : $product->get_name() ) . $quantity_label,
-			'amount' => WC_Stripe_Helper::get_stripe_amount( $total ),
+			'label'  => (WC_Stripe_Helper::is_pre_30() ? $product->name : $product->get_name()) . $quantity_label,
+			'amount' => WC_Stripe_Helper::get_stripe_amount($total),
 		);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 		}
 
-		if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+		if (wc_shipping_enabled() && $product->needs_shipping()) {
 			$items[] = array(
-				'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 
-			$data['shippingOptions']  = array(
+			$data['shippingOptions'] = array(
 				'id'     => 'pending',
-				'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 				'detail' => '',
 				'amount' => 0,
 			);
@@ -837,15 +837,15 @@ 
 		$data['displayItems'] = $items;
 		$data['total'] = array(
 			'label'   => $this->total_label,
-			'amount'  => WC_Stripe_Helper::get_stripe_amount( $total ),
+			'amount'  => WC_Stripe_Helper::get_stripe_amount($total),
 			'pending' => true,
 		);
 
-		$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-		$data['currency']        = strtolower( get_woocommerce_currency() );
-		$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+		$data['currency']        = strtolower(get_woocommerce_currency());
+		$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -856,37 +856,37 @@ 
 	 * @return array $data
 	 */
 	public function ajax_add_to_cart() {
-		check_ajax_referer( 'wc-stripe-add-to-cart', 'security' );
+		check_ajax_referer('wc-stripe-add-to-cart', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		$product_id = absint( $_POST['product_id'] );
-		$qty = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
+		$product_id = absint($_POST['product_id']);
+		$qty = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
 
-		$product = wc_get_product( $product_id );
+		$product = wc_get_product($product_id);
 
 		// First empty the cart to prevent wrong calculation.
 		WC()->cart->empty_cart();
 
-		if ( 'variable' === ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-			$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+		if ('variable' === (WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+			$attributes = array_map('wc_clean', $_POST['attributes']);
 
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_pre_30()) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			WC()->cart->add_to_cart( $product->get_id(), $qty, $variation_id, $attributes );
+			WC()->cart->add_to_cart($product->get_id(), $qty, $variation_id, $attributes);
 		}
 
-		if ( 'simple' === ( WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type() ) ) {
-			WC()->cart->add_to_cart( $product->get_id(), $qty );
+		if ('simple' === (WC_Stripe_Helper::is_pre_30() ? $product->product_type : $product->get_type())) {
+			WC()->cart->add_to_cart($product->get_id(), $qty);
 		}
 
 		WC()->cart->calculate_totals();
@@ -895,7 +895,7 @@ 
 		$data += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -908,31 +908,31 @@ 
 	 * @version 4.0.0
 	 */
 	public function normalize_state() {
-		$billing_country  = ! empty( $_POST['billing_country'] ) ? wc_clean( $_POST['billing_country'] ) : '';
-		$shipping_country = ! empty( $_POST['shipping_country'] ) ? wc_clean( $_POST['shipping_country'] ) : '';
-		$billing_state    = ! empty( $_POST['billing_state'] ) ? wc_clean( $_POST['billing_state'] ) : '';
-		$shipping_state   = ! empty( $_POST['shipping_state'] ) ? wc_clean( $_POST['shipping_state'] ) : '';
+		$billing_country  = ! empty($_POST['billing_country']) ? wc_clean($_POST['billing_country']) : '';
+		$shipping_country = ! empty($_POST['shipping_country']) ? wc_clean($_POST['shipping_country']) : '';
+		$billing_state    = ! empty($_POST['billing_state']) ? wc_clean($_POST['billing_state']) : '';
+		$shipping_state   = ! empty($_POST['shipping_state']) ? wc_clean($_POST['shipping_state']) : '';
 
-		if ( $billing_state && $billing_country ) {
-			$valid_states = WC()->countries->get_states( $billing_country );
+		if ($billing_state && $billing_country) {
+			$valid_states = WC()->countries->get_states($billing_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $billing_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $billing_state)) {
 						$_POST['billing_state'] = $state_abbr;
 					}
 				}
 			}
 		}
 
-		if ( $shipping_state && $shipping_country ) {
-			$valid_states = WC()->countries->get_states( $shipping_country );
+		if ($shipping_state && $shipping_country) {
+			$valid_states = WC()->countries->get_states($shipping_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $shipping_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $shipping_state)) {
 						$_POST['shipping_state'] = $state_abbr;
 					}
 				}
@@ -947,19 +947,19 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_create_order() {
-		if ( WC()->cart->is_empty() ) {
-			wp_send_json_error( __( 'Empty cart', 'woocommerce-gateway-stripe' ) );
+		if (WC()->cart->is_empty()) {
+			wp_send_json_error(__('Empty cart', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CHECKOUT' ) ) {
-			define( 'WOOCOMMERCE_CHECKOUT', true );
+		if ( ! defined('WOOCOMMERCE_CHECKOUT')) {
+			define('WOOCOMMERCE_CHECKOUT', true);
 		}
 
 		$this->normalize_state();
 
 		WC()->checkout()->process_checkout();
 
-		die( 0 );
+		die(0);
 	}
 
 	/**
@@ -969,7 +969,7 @@ 
 	 * @version 4.0.0
 	 * @param array $address
 	 */
-	protected function calculate_shipping( $address = array() ) {
+	protected function calculate_shipping($address = array()) {
 		global $states;
 
 		$country   = $address['country'];
@@ -986,28 +986,28 @@ 
 		 * In some versions of Chrome, state can be a full name. So we need
 		 * to convert that to abbreviation as WC is expecting that.
 		 */
-		if ( 2 < strlen( $state ) ) {
-			$state = array_search( ucfirst( strtolower( $state ) ), $states[ $country ] );
+		if (2 < strlen($state)) {
+			$state = array_search(ucfirst(strtolower($state)), $states[$country]);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		if ( $postcode && WC_Validation::is_postcode( $postcode, $country ) ) {
-			$postcode = wc_format_postcode( $postcode, $country );
+		if ($postcode && WC_Validation::is_postcode($postcode, $country)) {
+			$postcode = wc_format_postcode($postcode, $country);
 		}
 
-		if ( $country ) {
-			WC()->customer->set_location( $country, $state, $postcode, $city );
-			WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
+		if ($country) {
+			WC()->customer->set_location($country, $state, $postcode, $city);
+			WC()->customer->set_shipping_location($country, $state, $postcode, $city);
 		} else {
 			WC_Stripe_Helper::is_pre_30() ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
 			WC_Stripe_Helper::is_pre_30() ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
 		}
 
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			WC()->customer->calculated_shipping( true );
+		if (WC_Stripe_Helper::is_pre_30()) {
+			WC()->customer->calculated_shipping(true);
 		} else {
-			WC()->customer->set_calculated_shipping( true );
+			WC()->customer->set_calculated_shipping(true);
 			WC()->customer->save();
 		}
 
@@ -1024,17 +1024,17 @@ 
 		$packages[0]['destination']['address']   = $address_1;
 		$packages[0]['destination']['address_2'] = $address_2;
 
-		foreach ( WC()->cart->get_cart() as $item ) {
-			if ( $item['data']->needs_shipping() ) {
-				if ( isset( $item['line_total'] ) ) {
+		foreach (WC()->cart->get_cart() as $item) {
+			if ($item['data']->needs_shipping()) {
+				if (isset($item['line_total'])) {
 					$packages[0]['contents_cost'] += $item['line_total'];
 				}
 			}
 		}
 
-		$packages = apply_filters( 'woocommerce_cart_shipping_packages', $packages );
+		$packages = apply_filters('woocommerce_cart_shipping_packages', $packages);
 
-		WC()->shipping->calculate_shipping( $packages );
+		WC()->shipping->calculate_shipping($packages);
 	}
 
 	/**
@@ -1043,19 +1043,19 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	protected function build_shipping_methods( $shipping_methods ) {
-		if ( empty( $shipping_methods ) ) {
+	protected function build_shipping_methods($shipping_methods) {
+		if (empty($shipping_methods)) {
 			return array();
 		}
 
 		$shipping = array();
 
-		foreach ( $shipping_methods as $method ) {
+		foreach ($shipping_methods as $method) {
 			$shipping[] = array(
 				'id'         => $method['id'],
 				'label'      => $method['label'],
 				'detail'     => '',
-				'amount'     => WC_Stripe_Helper::get_stripe_amount( $method['amount']['value'] ),
+				'amount'     => WC_Stripe_Helper::get_stripe_amount($method['amount']['value']),
 			);
 		}
 
@@ -1069,8 +1069,8 @@ 
 	 * @version 4.0.0
 	 */
 	protected function build_display_items() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		$items     = array();
@@ -1078,71 +1078,71 @@ 
 		$discounts = 0;
 
 		// Default show only subtotal instead of itemization.
-		if ( ! apply_filters( 'wc_stripe_payment_request_hide_itemization', true ) ) {
-			foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
+		if ( ! apply_filters('wc_stripe_payment_request_hide_itemization', true)) {
+			foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
 				$amount         = $cart_item['line_subtotal'];
-				$subtotal       += $cart_item['line_subtotal'];
+				$subtotal += $cart_item['line_subtotal'];
 				$quantity_label = 1 < $cart_item['quantity'] ? ' (x' . $cart_item['quantity'] . ')' : '';
 
 				$product_name = WC_Stripe_Helper::is_pre_30() ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
 
 				$item = array(
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Stripe_Helper::get_stripe_amount( $amount ),
+					'amount' => WC_Stripe_Helper::get_stripe_amount($amount),
 				);
 
 				$items[] = $item;
 			}
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
-			$discounts = wc_format_decimal( WC()->cart->get_cart_discount_total(), WC()->cart->dp );
+		if (version_compare(WC_VERSION, '3.2', '<')) {
+			$discounts = wc_format_decimal(WC()->cart->get_cart_discount_total(), WC()->cart->dp);
 		} else {
-			$applied_coupons = array_values( WC()->cart->get_coupon_discount_totals() );
+			$applied_coupons = array_values(WC()->cart->get_coupon_discount_totals());
 
-			foreach ( $applied_coupons as $amount ) {
+			foreach ($applied_coupons as $amount) {
 				$discounts += (float) $amount;
 			}
 		}
 
-		$discounts   = wc_format_decimal( $discounts, WC()->cart->dp );
-		$tax         = wc_format_decimal( WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp );
-		$shipping    = wc_format_decimal( WC()->cart->shipping_total, WC()->cart->dp );
-		$items_total = wc_format_decimal( WC()->cart->cart_contents_total, WC()->cart->dp ) + $discounts;
-		$order_total = version_compare( WC_VERSION, '3.2', '<' ) ? wc_format_decimal( $items_total + $tax + $shipping - $discounts, WC()->cart->dp ) : WC()->cart->get_total( false );
+		$discounts   = wc_format_decimal($discounts, WC()->cart->dp);
+		$tax         = wc_format_decimal(WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp);
+		$shipping    = wc_format_decimal(WC()->cart->shipping_total, WC()->cart->dp);
+		$items_total = wc_format_decimal(WC()->cart->cart_contents_total, WC()->cart->dp) + $discounts;
+		$order_total = version_compare(WC_VERSION, '3.2', '<') ? wc_format_decimal($items_total + $tax + $shipping - $discounts, WC()->cart->dp) : WC()->cart->get_total(false);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Tax', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $tax ),
+				'label'  => esc_html(__('Tax', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($tax),
 			);
 		}
 
-		if ( WC()->cart->needs_shipping() ) {
+		if (WC()->cart->needs_shipping()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Shipping', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $shipping ),
+				'label'  => esc_html(__('Shipping', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($shipping),
 			);
 		}
 
-		if ( WC()->cart->has_discount() ) {
+		if (WC()->cart->has_discount()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Discount', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $discounts ),
+				'label'  => esc_html(__('Discount', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($discounts),
 			);
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
+		if (version_compare(WC_VERSION, '3.2', '<')) {
 			$cart_fees = WC()->cart->fees;
 		} else {
 			$cart_fees = WC()->cart->get_fees();
 		}
 
 		// Include fees and taxes as display items.
-		foreach ( $cart_fees as $key => $fee ) {
+		foreach ($cart_fees as $key => $fee) {
 			$items[] = array(
 				'label'  => $fee->name,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $fee->amount ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($fee->amount),
 			);
 		}
 
@@ -1150,7 +1150,7 @@ 
 			'displayItems' => $items,
 			'total'      => array(
 				'label'   => $this->total_label,
-				'amount'  => max( 0, apply_filters( 'woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount( $order_total ), $order_total, WC()->cart ) ),
+				'amount'  => max(0, apply_filters('woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount($order_total), $order_total, WC()->cart)),
 				'pending' => false,
 			),
 		);