woocommerce / woocommerce-gateway-stripe

includes/admin/stripe-settings.php

Spacing +67 added lines, -67 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -7,182 +7,182 @@ 
 	'wc_stripe_settings',
 	array(
 		'enabled'                       => array(
-			'title'       => __( 'Enable/Disable', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Stripe', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Enable/Disable', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Stripe', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
 			'description' => '',
 			'default'     => 'no',
 		),
 		'title'                         => array(
-			'title'       => __( 'Title', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Title', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Credit Card (Stripe)', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Credit Card (Stripe)', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'description'                   => array(
-			'title'       => __( 'Description', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Description', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'testmode'                      => array(
-			'title'       => __( 'Test mode', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Test Mode', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test mode', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Test Mode', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'test_publishable_key'          => array(
-			'title'       => __( 'Test Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "pk_test_" will be saved.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "pk_test_" will be saved.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'test_secret_key'               => array(
-			'title'       => __( 'Test Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "sk_test_" or "rk_test_" will be saved.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "sk_test_" or "rk_test_" will be saved.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'publishable_key'               => array(
-			'title'       => __( 'Live Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "pk_live_" will be saved.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "pk_live_" will be saved.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'secret_key'                    => array(
-			'title'       => __( 'Live Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "sk_live_" or "rk_live_" will be saved.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with "sk_live_" or "rk_live_" will be saved.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'webhook'                       => array(
-			'title'       => __( 'Webhook Endpoints', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Webhook Endpoints', 'woocommerce-gateway-stripe'),
 			'type'        => 'title',
 			/* translators: webhook URL */
 			'description' => $this->display_admin_settings_webhook_description(),
 		),
 		'test_webhook_secret'           => array(
-			'title'       => __( 'Test Webhook Secret', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Webhook Secret', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'webhook_secret'               => array(
-			'title'       => __( 'Webhook Secret', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Webhook Secret', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'inline_cc_form'                => array(
-			'title'       => __( 'Inline Credit Card Form', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Inline Credit Card Form', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),
 		'statement_descriptor'          => array(
-			'title'       => __( 'Statement Descriptor', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Statement Descriptor', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'capture'                       => array(
-			'title'       => __( 'Capture', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Capture charge immediately', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Capture', 'woocommerce-gateway-stripe'),
+			'label'       => __('Capture charge immediately', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request'               => array(
-			'title'       => __( 'Payment Request Buttons', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Buttons', 'woocommerce-gateway-stripe'),
 			/* translators: 1) br tag 2) opening anchor tag 3) closing anchor tag */
-			'label'       => sprintf( __( 'Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe' ), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>' ),
+			'label'       => sprintf(__('Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe'), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request_button_type'   => array(
-			'title'       => __( 'Payment Request Button Type', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Type', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Type', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Type', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button type you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button type you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'buy',
 			'desc_tip'    => true,
 			'options'     => array(
-				'default' => __( 'Default', 'woocommerce-gateway-stripe' ),
-				'buy'     => __( 'Buy', 'woocommerce-gateway-stripe' ),
-				'donate'  => __( 'Donate', 'woocommerce-gateway-stripe' ),
-				'branded' => __( 'Branded', 'woocommerce-gateway-stripe' ),
-				'custom'  => __( 'Custom', 'woocommerce-gateway-stripe' ),
+				'default' => __('Default', 'woocommerce-gateway-stripe'),
+				'buy'     => __('Buy', 'woocommerce-gateway-stripe'),
+				'donate'  => __('Donate', 'woocommerce-gateway-stripe'),
+				'branded' => __('Branded', 'woocommerce-gateway-stripe'),
+				'custom'  => __('Custom', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_theme'  => array(
-			'title'       => __( 'Payment Request Button Theme', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Theme', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Theme', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Theme', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button theme you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button theme you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'dark',
 			'desc_tip'    => true,
 			'options'     => array(
-				'dark'          => __( 'Dark', 'woocommerce-gateway-stripe' ),
-				'light'         => __( 'Light', 'woocommerce-gateway-stripe' ),
-				'light-outline' => __( 'Light-Outline', 'woocommerce-gateway-stripe' ),
+				'dark'          => __('Dark', 'woocommerce-gateway-stripe'),
+				'light'         => __('Light', 'woocommerce-gateway-stripe'),
+				'light-outline' => __('Light-Outline', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_height' => array(
-			'title'       => __( 'Payment Request Button Height', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Height', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Height', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Height', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe'),
 			'default'     => '44',
 			'desc_tip'    => true,
 		),
 		'payment_request_button_label' => array(
-			'title'       => __( 'Payment Request Button Label', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Label', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Label', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Label', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Enter the custom text you would like the button to have.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Buy now', 'woocommerce-gateway-stripe' ),
+			'description' => __('Enter the custom text you would like the button to have.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Buy now', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'payment_request_button_branded_type' => array(
-			'title'       => __( 'Payment Request Branded Button Label Format', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Branded Button Label Format', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Branded Button Label Format', 'woocommerce-gateway-stripe'),
+			'label'       => __('Branded Button Label Format', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the branded button label format.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the branded button label format.', 'woocommerce-gateway-stripe'),
 			'default'     => 'long',
 			'desc_tip'    => true,
 			'options'     => array(
-				'short' => __( 'Logo only', 'woocommerce-gateway-stripe' ),
-				'long'  => __( 'Text and logo', 'woocommerce-gateway-stripe' ),
+				'short' => __('Logo only', 'woocommerce-gateway-stripe'),
+				'long'  => __('Text and logo', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'saved_cards'                   => array(
-			'title'       => __( 'Saved Cards', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Payment via Saved Cards', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Saved Cards', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Payment via Saved Cards', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'logging'                       => array(
-			'title'       => __( 'Logging', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Log debug messages', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Logging', 'woocommerce-gateway-stripe'),
+			'label'       => __('Log debug messages', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),

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

Spacing +259 added lines, -259 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -52,12 +52,12 @@ 
 	 */
 	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;
-		$secret_key           = ( $this->testmode ? 'test_' : '' ) . 'webhook_secret';
-		$this->secret         = ! empty( $stripe_settings[ $secret_key ] ) ? $stripe_settings[ $secret_key ] : false;
+		$stripe_settings      = get_option('woocommerce_stripe_settings', array());
+		$this->testmode       = ( ! empty($stripe_settings['testmode']) && 'yes' === $stripe_settings['testmode']) ? true : false;
+		$secret_key           = ($this->testmode ? 'test_' : '') . 'webhook_secret';
+		$this->secret         = ! empty($stripe_settings[$secret_key]) ? $stripe_settings[$secret_key] : false;
 
-		add_action( 'woocommerce_api_wc_stripe', array( $this, 'check_for_webhook' ) );
+		add_action('woocommerce_api_wc_stripe', array($this, 'check_for_webhook'));
 
 		// Get/set the time we began monitoring the health of webhooks by fetching it.
 		// This should be roughly the same as the activation time of the version of the
@@ -72,32 +72,32 @@ 
 	 * @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.
-		$validation_result = $this->validate_request( $request_headers, $request_body );
-		if ( self::VALIDATION_SUCCEEDED === $validation_result ) {
-			$this->process_webhook( $request_body );
+		$validation_result = $this->validate_request($request_headers, $request_body);
+		if (self::VALIDATION_SUCCEEDED === $validation_result) {
+			$this->process_webhook($request_body);
 
-			$notification = json_decode( $request_body );
-			update_option( self::OPTION_LAST_SUCCESS_AT, $notification->created );
+			$notification = json_decode($request_body);
+			update_option(self::OPTION_LAST_SUCCESS_AT, $notification->created);
 
-			status_header( 200 );
+			status_header(200);
 			exit;
 		} else {
-			WC_Stripe_Logger::log( 'Incoming webhook failed validation: ' . print_r( $request_body, true ) );
-			update_option( self::OPTION_LAST_FAILURE_AT, current_time( 'timestamp', true ) );
-			update_option( self::OPTION_LAST_ERROR, $validation_result );
+			WC_Stripe_Logger::log('Incoming webhook failed validation: ' . print_r($request_body, true));
+			update_option(self::OPTION_LAST_FAILURE_AT, current_time('timestamp', true));
+			update_option(self::OPTION_LAST_ERROR, $validation_result);
 
-			status_header( 400 );
+			status_header(400);
 			exit;
 		}
 	}
@@ -111,37 +111,37 @@ 
 	 * @param string $request_body The request body from Stripe.
 	 * @return string The validation result (e.g. self::VALIDATION_SUCCEEDED )
 	 */
-	public function validate_request( $request_headers = null, $request_body = null ) {
-		if ( null === $request_headers ) {
+	public function validate_request($request_headers = null, $request_body = null) {
+		if (null === $request_headers) {
 			return self::VALIDATION_FAILED_HEADERS_NULL;
 		}
-		if ( null === $request_body ) {
+		if (null === $request_body) {
 			return self::VALIDATION_FAILED_BODY_NULL;
 		}
 
-		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 self::VALIDATION_FAILED_USER_AGENT_INVALID;
 		}
 
-		if ( ! empty( $this->secret ) ) {
+		if ( ! empty($this->secret)) {
 			// Check for a valid signature.
 			$signature_format = '/^t=(?P<timestamp>\d+)(?P<signatures>(,v\d+=[a-z0-9]+){1,2})$/';
-			if ( empty( $request_headers['STRIPE-SIGNATURE'] ) || ! preg_match( $signature_format, $request_headers['STRIPE-SIGNATURE'], $matches ) ) {
+			if (empty($request_headers['STRIPE-SIGNATURE']) || ! preg_match($signature_format, $request_headers['STRIPE-SIGNATURE'], $matches)) {
 				return self::VALIDATION_FAILED_SIGNATURE_INVALID;
 			}
 
 			// Verify the timestamp.
-			$timestamp = intval( $matches['timestamp'] );
-			if ( abs( $timestamp - time() ) > 5 * MINUTE_IN_SECONDS ) {
+			$timestamp = intval($matches['timestamp']);
+			if (abs($timestamp - time()) > 5 * MINUTE_IN_SECONDS) {
 				return self::VALIDATION_FAILED_TIMESTAMP_MISMATCH;
 			}
 
 			// Generate the expected signature.
 			$signed_payload     = $timestamp . '.' . $request_body;
-			$expected_signature = hash_hmac( 'sha256', $signed_payload, $this->secret );
+			$expected_signature = hash_hmac('sha256', $signed_payload, $this->secret);
 
 			// Check if the expected signature is present.
-			if ( ! preg_match( '/,v\d+=' . preg_quote( $expected_signature, '/' ) . '/', $matches['signatures'] ) ) {
+			if ( ! preg_match('/,v\d+=' . preg_quote($expected_signature, '/') . '/', $matches['signatures'])) {
 				return self::VALIDATION_FAILED_SIGNATURE_MISMATCH;
 			}
 		}
@@ -158,12 +158,12 @@ 
 	 * @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;
 				}
 			}
 
@@ -182,30 +182,30 @@ 
 	 * @param object $notification
 	 * @param bool $retry
 	 */
-	public function process_webhook_payment( $notification, $retry = true ) {
+	public function process_webhook_payment($notification, $retry = true) {
 		// The following 3 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 || 'three_d_secure' === $notification->data->object->type ) {
+		if ('card' === $notification->data->object->type || 'sepa_debit' === $notification->data->object->type || 'three_d_secure' === $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  = $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 ( $order->has_status( array( 'processing', 'completed' ) ) ) {
+			if ($order->has_status(array('processing', 'completed'))) {
 				return;
 			}
 
-			if ( $order->has_status( 'on-hold' ) && ! $is_pending_receiver ) {
+			if ($order->has_status('on-hold') && ! $is_pending_receiver) {
 				return;
 			}
 
@@ -213,89 +213,89 @@ 
 			$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 ) ) {
-					delete_user_option( $order->get_customer_id(), '_stripe_customer_id' );
-					$order->delete_meta_data( '_stripe_customer_id' );
+				if ($this->is_no_such_customer_error($response->error)) {
+					delete_user_option($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);
 			}
 		}
 	}
@@ -308,21 +308,21 @@ 
 	 * @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 = $order->get_id();
-		$this->send_failed_order_email( $order_id );
+		$this->send_failed_order_email($order_id);
 	}
 
 	/**
@@ -333,43 +333,43 @@ 
 	 * @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;
 		}
 
-		if ( 'stripe' === $order->get_payment_method() ) {
+		if ('stripe' === $order->get_payment_method()) {
 			$charge   = $order->get_transaction_id();
-			$captured = $order->get_meta( '_stripe_charge_captured', true );
+			$captured = $order->get_meta('_stripe_charge_captured', true);
 
-			if ( $charge && 'no' === $captured ) {
-				$order->update_meta_data( '_stripe_charge_captured', 'yes' );
+			if ($charge && 'no' === $captured) {
+				$order->update_meta_data('_stripe_charge_captured', 'yes');
 
 				// Store other data such as fees
-				$order->set_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 );
-					$this->update_fees( $order, $notification->data->object->refunds->data[0]->balance_transaction );
+				if ($this->is_partial_capture($notification)) {
+					$partial_amount = $this->get_partial_amount_to_charge($notification);
+					$order->set_total($partial_amount);
+					$this->update_fees($order, $notification->data->object->refunds->data[0]->balance_transaction);
 					/* translators: partial captured amount */
-					$order->add_order_note( sprintf( __( 'This charge was partially captured via Stripe Dashboard in the amount of: %s', 'woocommerce-gateway-stripe' ), $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();
 				}
 			}
@@ -384,41 +384,41 @@ 
 	 * @version 4.0.0
 	 * @param object $notification
 	 */
-	public function process_webhook_charge_succeeded( $notification ) {
+	public function process_webhook_charge_succeeded($notification) {
 		// Ignore the notification for charges, created through PaymentIntents.
-		if ( isset( $notification->data->object->payment_intent ) && $notification->data->object->payment_intent ) {
+		if (isset($notification->data->object->payment_intent) && $notification->data->object->payment_intent) {
 			return;
 		}
 
 		// 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;
 		}
 
-		if ( ! $order->has_status( 'on-hold' ) ) {
+		if ( ! $order->has_status('on-hold')) {
 			return;
 		}
 
 		// Store other data such as fees
-		$order->set_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();
 		}
 	}
@@ -430,22 +430,22 @@ 
 	 * @since 4.1.5 Can handle any fail payments from any methods.
 	 * @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;
 		}
 
 		// If order status is already in failed status don't continue.
-		if ( $order->has_status( 'failed' ) ) {
+		if ($order->has_status('failed')) {
 			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);
 	}
 
 	/**
@@ -456,30 +456,30 @@ 
 	 * @since 4.1.15 Add check to make sure order is processed by Stripe.
 	 * @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 can't find order by charge ID, try source ID.
-		if ( ! $order ) {
-			$order = WC_Stripe_Helper::get_order_by_source_id( $notification->data->object->id );
+		if ( ! $order) {
+			$order = WC_Stripe_Helper::get_order_by_source_id($notification->data->object->id);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( 'Could not find order via charge/source ID: ' . $notification->data->object->id );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('Could not find order via charge/source ID: ' . $notification->data->object->id);
 				return;
 			}
 		}
 
 		// Don't proceed if payment method isn't Stripe.
-		if ( 'stripe' !== $order->get_payment_method() ) {
-			WC_Stripe_Logger::log( 'Canceled webhook abort: Order was not processed by Stripe: ' . $order->get_id() );
+		if ('stripe' !== $order->get_payment_method()) {
+			WC_Stripe_Logger::log('Canceled webhook abort: Order was not processed by Stripe: ' . $order->get_id());
 			return;
 		}
 
-		if ( ! $order->has_status( 'cancelled' ) ) {
-			$order->update_status( 'cancelled', __( 'This payment has cancelled.', 'woocommerce-gateway-stripe' ) );
+		if ( ! $order->has_status('cancelled')) {
+			$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);
 	}
 
 	/**
@@ -489,59 +489,59 @@ 
 	 * @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 = $order->get_id();
 
-		if ( 'stripe' === $order->get_payment_method() ) {
+		if ('stripe' === $order->get_payment_method()) {
 			$charge    = $order->get_transaction_id();
-			$captured  = $order->get_meta( '_stripe_charge_captured', true );
-			$refund_id = $order->get_meta( '_stripe_refund_id', true );
+			$captured  = $order->get_meta('_stripe_charge_captured', true);
+			$refund_id = $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(
 						'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());
 				}
 
-				$order->update_meta_data( '_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);
 			}
 		}
 	}
@@ -552,30 +552,30 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_opened( $notification ) {
-		if ( isset( $notification->data->object->payment_intent ) ) {
-			$order = WC_Stripe_Helper::get_order_by_intent_id( $notification->data->object->payment_intent );
+	public function process_review_opened($notification) {
+		if (isset($notification->data->object->payment_intent)) {
+			$order = WC_Stripe_Helper::get_order_by_intent_id($notification->data->object->payment_intent);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Opened] Could not find order via intent ID: ' . $notification->data->object->payment_intent );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Opened] Could not find order via intent ID: ' . $notification->data->object->payment_intent);
 				return;
 			}
 		} else {
-			$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+			$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Opened] Could not find order via charge ID: ' . $notification->data->object->charge );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Opened] 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);
 		}
 	}
 
@@ -585,34 +585,34 @@ 
 	 * @since 4.0.6
 	 * @param object $notification
 	 */
-	public function process_review_closed( $notification ) {
-		if ( isset( $notification->data->object->payment_intent ) ) {
-			$order = WC_Stripe_Helper::get_order_by_intent_id( $notification->data->object->payment_intent );
+	public function process_review_closed($notification) {
+		if (isset($notification->data->object->payment_intent)) {
+			$order = WC_Stripe_Helper::get_order_by_intent_id($notification->data->object->payment_intent);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Closed] Could not find order via intent ID: ' . $notification->data->object->payment_intent );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Closed] Could not find order via intent ID: ' . $notification->data->object->payment_intent);
 				return;
 			}
 		} else {
-			$order = WC_Stripe_Helper::get_order_by_charge_id( $notification->data->object->charge );
+			$order = WC_Stripe_Helper::get_order_by_charge_id($notification->data->object->charge);
 
-			if ( ! $order ) {
-				WC_Stripe_Logger::log( '[Review Closed] Could not find order via charge ID: ' . $notification->data->object->charge );
+			if ( ! $order) {
+				WC_Stripe_Logger::log('[Review Closed] 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 ( $order->has_status( 'on-hold' ) ) {
-			if ( apply_filters( 'wc_stripe_webhook_review_change_order_status', true, $order, $notification ) ) {
-				$order->update_status( 'processing', $message );
+		if ($order->has_status('on-hold')) {
+			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);
 		}
 	}
 
@@ -623,7 +623,7 @@ 
 	 * @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;
 	}
 
@@ -634,11 +634,11 @@ 
 	 * @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;
 			}
 
@@ -655,12 +655,12 @@ 
 	 * @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;
@@ -669,69 +669,69 @@ 
 		return false;
 	}
 
-	public function process_payment_intent_success( $notification ) {
+	public function process_payment_intent_success($notification) {
 		$intent = $notification->data->object;
-		$order = WC_Stripe_Helper::get_order_by_intent_id( $intent->id );
+		$order = WC_Stripe_Helper::get_order_by_intent_id($intent->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via intent ID: ' . $intent->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via intent ID: ' . $intent->id);
 			return;
 		}
 
-		if ( ! $order->has_status( array( 'pending', 'failed' ) ) ) {
+		if ( ! $order->has_status(array('pending', 'failed'))) {
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
 		$order_id = $order->get_id();
-		if ( 'payment_intent.succeeded' === $notification->type || 'payment_intent.amount_capturable_updated' === $notification->type ) {
-			$charge = end( $intent->charges->data );
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id succeeded for order $order_id" );
+		if ('payment_intent.succeeded' === $notification->type || 'payment_intent.amount_capturable_updated' === $notification->type) {
+			$charge = end($intent->charges->data);
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id succeeded for order $order_id");
 
-			do_action( 'wc_gateway_stripe_process_payment', $charge, $order );
+			do_action('wc_gateway_stripe_process_payment', $charge, $order);
 
 			// Process valid response.
-			$this->process_response( $charge, $order );
+			$this->process_response($charge, $order);
 
 		} else {
 			$error_message = $intent->last_payment_error ? $intent->last_payment_error->message : "";
 
 			/* translators: 1) The error message that was received from Stripe. */
-			$order->update_status( 'failed', sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $error_message ) );
+			$order->update_status('failed', sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $error_message));
 
-			do_action( 'wc_gateway_stripe_process_webhook_payment_error', $order, $notification );
+			do_action('wc_gateway_stripe_process_webhook_payment_error', $order, $notification);
 
-			$this->send_failed_order_email( $order_id );
+			$this->send_failed_order_email($order_id);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
-	public function process_setup_intent( $notification ) {
+	public function process_setup_intent($notification) {
 		$intent = $notification->data->object;
-		$order = WC_Stripe_Helper::get_order_by_setup_intent_id( $intent->id );
+		$order = WC_Stripe_Helper::get_order_by_setup_intent_id($intent->id);
 
-		if ( ! $order ) {
-			WC_Stripe_Logger::log( 'Could not find order via setup intent ID: ' . $intent->id );
+		if ( ! $order) {
+			WC_Stripe_Logger::log('Could not find order via setup intent ID: ' . $intent->id);
 			return;
 		}
 
-		if ( ! $order->has_status( array( 'pending', 'failed' ) ) ) {
+		if ( ! $order->has_status(array('pending', 'failed'))) {
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
 		$order_id = $order->get_id();
-		if ( 'setup_intent.succeeded' === $notification->type ) {
-			WC_Stripe_Logger::log( "Stripe SetupIntent $intent->id succeeded for order $order_id" );
-			if ( WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order( $order ) ) {
-				WC_Pre_Orders_Order::mark_order_as_pre_ordered( $order );
+		if ('setup_intent.succeeded' === $notification->type) {
+			WC_Stripe_Logger::log("Stripe SetupIntent $intent->id succeeded for order $order_id");
+			if (WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order($order)) {
+				WC_Pre_Orders_Order::mark_order_as_pre_ordered($order);
 			} else {
 				$order->payment_complete();
 			}
@@ -739,12 +739,12 @@ 
 			$error_message = $intent->last_setup_error ? $intent->last_setup_error->message : "";
 
 			/* translators: 1) The error message that was received from Stripe. */
-			$order->update_status( 'failed', sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $error_message ) );
+			$order->update_status('failed', sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $error_message));
 
-			$this->send_failed_order_email( $order_id );
+			$this->send_failed_order_email($order_id);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
 	/**
@@ -754,55 +754,55 @@ 
 	 * @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;
 
 			case 'payment_intent.succeeded':
 			case 'payment_intent.payment_failed':
 			case 'payment_intent.amount_capturable_updated':
-				$this->process_payment_intent_success( $notification );
+				$this->process_payment_intent_success($notification);
 				break;
 
 			case 'setup_intent.succeeded':
 			case 'setup_intent.setup_failed':
-				$this->process_setup_intent( $notification );
+				$this->process_setup_intent($notification);
 
 		}
 	}
@@ -815,17 +815,17 @@ 
 	 * @return integer UTC seconds since 1970.
 	 */
 	public static function get_monitoring_began_at() {
-		$monitoring_began_at = get_option( self::OPTION_MONITORING_BEGAN_AT, 0 );
-		if ( 0 == $monitoring_began_at ) {
-			$monitoring_began_at = current_time( 'timestamp', true );
-			update_option( self::OPTION_MONITORING_BEGAN_AT, $monitoring_began_at );
+		$monitoring_began_at = get_option(self::OPTION_MONITORING_BEGAN_AT, 0);
+		if (0 == $monitoring_began_at) {
+			$monitoring_began_at = current_time('timestamp', true);
+			update_option(self::OPTION_MONITORING_BEGAN_AT, $monitoring_began_at);
 
 			// Enforce database consistency. This should only be needed if the user
 			// has modified the database directly. We should not allow timestamps
 			// before monitoring began.
-			delete_option( self::OPTION_LAST_SUCCESS_AT );
-			delete_option( self::OPTION_LAST_FAILURE_AT );
-			delete_option( self::OPTION_LAST_ERROR );
+			delete_option(self::OPTION_LAST_SUCCESS_AT);
+			delete_option(self::OPTION_LAST_FAILURE_AT);
+			delete_option(self::OPTION_LAST_ERROR);
 		}
 		return $monitoring_began_at;
 	}
@@ -838,7 +838,7 @@ 
 	 * @return integer UTC seconds since 1970 | 0.
 	 */
 	public static function get_last_webhook_success_at() {
-		return get_option( self::OPTION_LAST_SUCCESS_AT, 0 );
+		return get_option(self::OPTION_LAST_SUCCESS_AT, 0);
 	}
 
 	/**
@@ -849,7 +849,7 @@ 
 	 * @return integer UTC seconds since 1970 | 0.
 	 */
 	public static function get_last_webhook_failure_at() {
-		return get_option( self::OPTION_LAST_FAILURE_AT, 0 );
+		return get_option(self::OPTION_LAST_FAILURE_AT, 0);
 	}
 
 	/**
@@ -859,37 +859,37 @@ 
 	 * @return string Reason the last webhook failed.
 	 */
 	public static function get_last_error_reason() {
-		$last_error = get_option( self::OPTION_LAST_ERROR, false );
+		$last_error = get_option(self::OPTION_LAST_ERROR, false);
 
-		if ( ! $last_error ) {
-			return( __( 'No error', 'woocommerce-gateway-stripe' ) );
+		if ( ! $last_error) {
+			return(__('No error', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_BODY_NULL == $last_error ) {
-			return( __( 'The webhook was missing expected body', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_BODY_NULL == $last_error) {
+			return(__('The webhook was missing expected body', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_HEADERS_NULL == $last_error ) {
-			return( __( 'The webhook was missing expected headers', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_HEADERS_NULL == $last_error) {
+			return(__('The webhook was missing expected headers', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_SIGNATURE_INVALID == $last_error ) {
-			return( __( 'The webhook signature was missing or was incorrectly formatted', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_SIGNATURE_INVALID == $last_error) {
+			return(__('The webhook signature was missing or was incorrectly formatted', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_SIGNATURE_MISMATCH == $last_error ) {
-			return( __( 'The webhook was not signed with the expected signing secret', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_SIGNATURE_MISMATCH == $last_error) {
+			return(__('The webhook was not signed with the expected signing secret', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_TIMESTAMP_MISMATCH == $last_error ) {
-			return( __( 'The timestamp in the webhook differed more than five minutes from the site time', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_TIMESTAMP_MISMATCH == $last_error) {
+			return(__('The timestamp in the webhook differed more than five minutes from the site time', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( self::VALIDATION_FAILED_USER_AGENT_INVALID == $last_error ) {
-			return( __( 'The webhook received did not come from Stripe', 'woocommerce-gateway-stripe' ) );
+		if (self::VALIDATION_FAILED_USER_AGENT_INVALID == $last_error) {
+			return(__('The webhook received did not come from Stripe', 'woocommerce-gateway-stripe'));
 		}
 
-		return( __( 'Unknown error.', 'woocommerce-gateway-stripe' ) );
+		return(__('Unknown error.', 'woocommerce-gateway-stripe'));
 	}
 }
 

includes/abstracts/abstract-wc-stripe-payment-gateway.php

Spacing +340 added lines, -340 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -21,7 +21,7 @@ 
 	 */
 	public function display_admin_settings_webhook_description() {
 		/* translators: 1) webhook url */
-		$description = sprintf( __( 'You must add the following webhook endpoint <strong style="background-color:#ddd;">&nbsp;%s&nbsp;</strong> to your <a href="https://dashboard.stripe.com/account/webhooks" target="_blank">Stripe account settings</a> (if there isn\'t one already enabled). This will enable you to receive notifications on the charge statuses.', 'woocommerce-gateway-stripe' ), WC_Stripe_Helper::get_webhook_url() );
+		$description = sprintf(__('You must add the following webhook endpoint <strong style="background-color:#ddd;">&nbsp;%s&nbsp;</strong> to your <a href="https://dashboard.stripe.com/account/webhooks" target="_blank">Stripe account settings</a> (if there isn\'t one already enabled). This will enable you to receive notifications on the charge statuses.', 'woocommerce-gateway-stripe'), WC_Stripe_Helper::get_webhook_url());
 
 		$webhook_status = $this->get_webhook_status_message();
 
@@ -43,35 +43,35 @@ 
 		$date_format = 'Y-m-d H:i:s e';
 
 		// Case 1 (Nominal case): Most recent = success
-		if ( last_success_at > $last_failure_at ) {
+		if (last_success_at > $last_failure_at) {
 			$message = sprintf(
 				/* translators: 1) date and time of last webhook received, e.g. 2020-06-28 10:30:50 UTC */
-				__( 'The most recent webhook, timestamped %s, was processed succesfully.', 'woocommerce-gateway-stripe' ),
-				date( $date_format, $last_success_at )
+				__('The most recent webhook, timestamped %s, was processed succesfully.', 'woocommerce-gateway-stripe'),
+				date($date_format, $last_success_at)
 			);
 			return $message;
 		}
 
 		// Case 2: No webhooks received yet
-		if ( ( 0 == $last_success_at ) && ( 0 == $last_failure_at ) ) {
+		if ((0 == $last_success_at) && (0 == $last_failure_at)) {
 			$message = sprintf(
 				/* translators: 1) date and time webhook monitoring began, e.g. 2020-06-28 10:30:50 UTC */
-				__( 'No webhooks have been received since monitoring began at %s.', 'woocommerce-gateway-stripe' ),
-				date( $date_format, $monitoring_began_at )
+				__('No webhooks have been received since monitoring began at %s.', 'woocommerce-gateway-stripe'),
+				date($date_format, $monitoring_began_at)
 			);
 			return $message;
 		}
 
 		// Case 3: Failure after success
-		if ( $last_success_at > 0 ) {
+		if ($last_success_at > 0) {
 			$message = sprintf(
 				/* translators: 1) date and time of last failed webhook e.g. 2020-06-28 10:30:50 UTC */
 				/* translators: 2) reason webhook failed */
 				/* translators: 3) date and time of last successful webhook e.g. 2020-05-28 10:30:50 UTC */
-				__( 'Warning: The most recent webhook, received at %s, could not be processed. Reason: %s. (The last webhook to process successfully was timestamped %s.)', 'woocommerce-gateway-stripe' ),
-				date( $date_format, $last_failure_at ),
+				__('Warning: The most recent webhook, received at %s, could not be processed. Reason: %s. (The last webhook to process successfully was timestamped %s.)', 'woocommerce-gateway-stripe'),
+				date($date_format, $last_failure_at),
 				$last_error,
-				date( $date_format, $last_success_at )
+				date($date_format, $last_success_at)
 			);
 			return $message;
 		}
@@ -81,10 +81,10 @@ 
 			/* translators: 1) date and time of last failed webhook e.g. 2020-06-28 10:30:50 UTC */
 			/* translators: 2) reason webhook failed */
 			/* translators: 3) date and time webhook monitoring began e.g. 2020-05-28 10:30:50 UTC */
-			__( 'Warning: The most recent webhook, received at %s, could not be processed. Reason: %s. (No webhooks have been processed successfully since monitoring began at %s.)', 'woocommerce-gateway-stripe' ),
-			date( $date_format, $last_failure_at ),
+			__('Warning: The most recent webhook, received at %s, could not be processed. Reason: %s. (No webhooks have been processed successfully since monitoring began at %s.)', 'woocommerce-gateway-stripe'),
+			date($date_format, $last_failure_at),
 			$last_error,
-			date( $date_format, $monitoring_began_at )
+			date($date_format, $monitoring_began_at)
 		);
 		return $message;
 	}
@@ -100,8 +100,8 @@ 
 				<input id="wc-%1$s-new-payment-method" name="wc-%1$s-new-payment-method" type="checkbox" value="true" style="width:auto;" />
 				<label for="wc-%1$s-new-payment-method" style="display:inline;">%2$s</label>
 			</p>',
-			esc_attr( $this->id ),
-			esc_html( apply_filters( 'wc_stripe_save_to_account_text', __( 'Save payment information to my account for future purchases.', 'woocommerce-gateway-stripe' ) ) )
+			esc_attr($this->id),
+			esc_html(apply_filters('wc_stripe_save_to_account_text', __('Save payment information to my account for future purchases.', 'woocommerce-gateway-stripe')))
 		);
 	}
 
@@ -112,7 +112,7 @@ 
 	 * @since 4.0.5
 	 * @param array $error
 	 */
-	public function is_retryable_error( $error ) {
+	public function is_retryable_error($error) {
 		return (
 			'invalid_request_error' === $error->type ||
 			'idempotency_error' === $error->type ||
@@ -129,11 +129,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_same_idempotency_error( $error ) {
+	public function is_same_idempotency_error($error) {
 		return (
 			$error &&
 			'idempotency_error' === $error->type &&
-			preg_match( '/Keys for idempotent requests can only be used with the same parameters they were first used with./i', $error->message )
+			preg_match('/Keys for idempotent requests can only be used with the same parameters they were first used with./i', $error->message)
 		);
 	}
 
@@ -144,11 +144,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_customer_error( $error ) {
+	public function is_no_such_customer_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such customer/i', $error->message )
+			preg_match('/No such customer/i', $error->message)
 		);
 	}
 
@@ -159,11 +159,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_token_error( $error ) {
+	public function is_no_such_token_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such token/i', $error->message )
+			preg_match('/No such token/i', $error->message)
 		);
 	}
 
@@ -174,11 +174,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_source_error( $error ) {
+	public function is_no_such_source_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such source/i', $error->message )
+			preg_match('/No such source/i', $error->message)
 		);
 	}
 
@@ -189,11 +189,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_linked_source_error( $error ) {
+	public function is_no_linked_source_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/does not have a linked source with ID/i', $error->message )
+			preg_match('/does not have a linked source with ID/i', $error->message)
 		);
 	}
 
@@ -206,13 +206,13 @@ 
 	 * @param object $error
 	 * @return bool
 	 */
-	public function need_update_idempotency_key( $source_object, $error ) {
+	public function need_update_idempotency_key($source_object, $error) {
 		return (
 			$error &&
 			1 < $this->retry_interval &&
-			! empty( $source_object ) &&
+			! empty($source_object) &&
 			'chargeable' === $source_object->status &&
-			self::is_same_idempotency_error( $error )
+			self::is_same_idempotency_error($error)
 		);
 	}
 
@@ -226,12 +226,12 @@ 
 		// NOTE: updates to this function should be added to are_keys_set()
 		// in includes/payment-methods/class-wc-stripe-payment-request.php
 
-		if ( $this->testmode ) {
-			return preg_match( '/^pk_test_/', $this->publishable_key )
-				&& preg_match( '/^[rs]k_test_/', $this->secret_key );
+		if ($this->testmode) {
+			return preg_match('/^pk_test_/', $this->publishable_key)
+				&& preg_match('/^[rs]k_test_/', $this->secret_key);
 		} else {
-			return preg_match( '/^pk_live_/', $this->publishable_key )
-			    && preg_match( '/^[rs]k_live_/', $this->secret_key );
+			return preg_match('/^pk_live_/', $this->publishable_key)
+			    && preg_match('/^[rs]k_live_/', $this->secret_key);
 		}
 	}
 
@@ -241,7 +241,7 @@ 
 	 * @since 4.1.3
 	 */
 	public function is_available() {
-		if ( 'yes' === $this->enabled ) {
+		if ('yes' === $this->enabled) {
 			return $this->are_keys_set();
 		}
 
@@ -256,12 +256,12 @@ 
 	 * @param int $order_id
 	 * @return bool
 	 */
-	public function maybe_process_pre_orders( $order_id ) {
+	public function maybe_process_pre_orders($order_id) {
 		return (
 			WC_Stripe_Helper::is_pre_orders_exists() &&
-			$this->pre_orders->is_pre_order( $order_id ) &&
-			WC_Pre_Orders_Order::order_requires_payment_tokenization( $order_id ) &&
-			! is_wc_endpoint_url( 'order-pay' )
+			$this->pre_orders->is_pre_order($order_id) &&
+			WC_Pre_Orders_Order::order_requires_payment_tokenization($order_id) &&
+			! is_wc_endpoint_url('order-pay')
 		);
 	}
 
@@ -305,10 +305,10 @@ 
 	 * @version 4.0.0
 	 * @param object $order
 	 */
-	public function validate_minimum_order_amount( $order ) {
-		if ( $order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function validate_minimum_order_amount($order) {
+		if ($order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: 1) dollar amount */
-			throw new WC_Stripe_Exception( 'Did not meet minimum amount', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			throw new WC_Stripe_Exception('Did not meet minimum amount', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 	}
 
@@ -318,14 +318,14 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function get_transaction_url( $order ) {
-		if ( $this->testmode ) {
+	public function get_transaction_url($order) {
+		if ($this->testmode) {
 			$this->view_transaction_url = 'https://dashboard.stripe.com/test/payments/%s';
 		} else {
 			$this->view_transaction_url = 'https://dashboard.stripe.com/payments/%s';
 		}
 
-		return parent::get_transaction_url( $order );
+		return parent::get_transaction_url($order);
 	}
 
 	/**
@@ -334,12 +334,12 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function get_stripe_customer_id( $order ) {
-		$customer = get_user_option( '_stripe_customer_id', $order->get_customer_id() );
+	public function get_stripe_customer_id($order) {
+		$customer = get_user_option('_stripe_customer_id', $order->get_customer_id());
 
-		if ( empty( $customer ) ) {
+		if (empty($customer)) {
 			// Try to get it via the order.
-			return $order->get_meta( '_stripe_customer_id', true );
+			return $order->get_meta('_stripe_customer_id', true);
 		} else {
 			return $customer;
 		}
@@ -355,9 +355,9 @@ 
 	 * @param object $order
 	 * @param int $id Stripe session id.
 	 */
-	public function get_stripe_return_url( $order = null, $id = null ) {
-		if ( is_object( $order ) ) {
-			if ( empty( $id ) ) {
+	public function get_stripe_return_url($order = null, $id = null) {
+		if (is_object($order)) {
+			if (empty($id)) {
 				$id = uniqid();
 			}
 
@@ -368,10 +368,10 @@ 
 				'order_id'       => $order_id,
 			);
 
-			return wp_sanitize_redirect( esc_url_raw( add_query_arg( $args, $this->get_return_url( $order ) ) ) );
+			return wp_sanitize_redirect(esc_url_raw(add_query_arg($args, $this->get_return_url($order))));
 		}
 
-		return wp_sanitize_redirect( esc_url_raw( add_query_arg( array( 'utm_nooverride' => '1' ), $this->get_return_url() ) ) );
+		return wp_sanitize_redirect(esc_url_raw(add_query_arg(array('utm_nooverride' => '1'), $this->get_return_url())));
 	}
 
 	/**
@@ -379,8 +379,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function has_subscription( $order_id ) {
-		return ( function_exists( 'wcs_order_contains_subscription' ) && ( wcs_order_contains_subscription( $order_id ) || wcs_is_subscription( $order_id ) || wcs_order_contains_renewal( $order_id ) ) );
+	public function has_subscription($order_id) {
+		return (function_exists('wcs_order_contains_subscription') && (wcs_order_contains_subscription($order_id) || wcs_is_subscription($order_id) || wcs_order_contains_renewal($order_id)));
 	}
 
 	/**
@@ -392,34 +392,34 @@ 
 	 * @param  object $prepared_source
 	 * @return array()
 	 */
-	public function generate_payment_request( $order, $prepared_source ) {
-		$settings              = get_option( 'woocommerce_stripe_settings', array() );
-		$statement_descriptor  = ! empty( $settings['statement_descriptor'] ) ? str_replace( "'", '', $settings['statement_descriptor'] ) : '';
-		$capture               = ! empty( $settings['capture'] ) && 'yes' === $settings['capture'] ? true : false;
+	public function generate_payment_request($order, $prepared_source) {
+		$settings              = get_option('woocommerce_stripe_settings', array());
+		$statement_descriptor  = ! empty($settings['statement_descriptor']) ? str_replace("'", '', $settings['statement_descriptor']) : '';
+		$capture               = ! empty($settings['capture']) && 'yes' === $settings['capture'] ? true : false;
 		$post_data             = array();
-		$post_data['currency'] = strtolower( $order->get_currency() );
-		$post_data['amount']   = WC_Stripe_Helper::get_stripe_amount( $order->get_total(), $post_data['currency'] );
+		$post_data['currency'] = strtolower($order->get_currency());
+		$post_data['amount']   = WC_Stripe_Helper::get_stripe_amount($order->get_total(), $post_data['currency']);
 		/* translators: 1) blog name 2) order number */
-		$post_data['description'] = sprintf( __( '%1$s - Order %2$s', 'woocommerce-gateway-stripe' ), wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ), $order->get_order_number() );
+		$post_data['description'] = sprintf(__('%1$s - Order %2$s', 'woocommerce-gateway-stripe'), wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES), $order->get_order_number());
 		$billing_email            = $order->get_billing_email();
 		$billing_first_name       = $order->get_billing_first_name();
 		$billing_last_name        = $order->get_billing_last_name();
 
-		if ( ! empty( $billing_email ) && apply_filters( 'wc_stripe_send_stripe_receipt', false ) ) {
+		if ( ! empty($billing_email) && apply_filters('wc_stripe_send_stripe_receipt', false)) {
 			$post_data['receipt_email'] = $billing_email;
 		}
 
-		switch ( $order->get_payment_method() ) {
+		switch ($order->get_payment_method()) {
 			case 'stripe':
-				if ( ! empty( $statement_descriptor ) ) {
-					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor( $statement_descriptor );
+				if ( ! empty($statement_descriptor)) {
+					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor($statement_descriptor);
 				}
 
 				$post_data['capture'] = $capture ? 'true' : 'false';
 				break;
 			case 'stripe_sepa':
-				if ( ! empty( $statement_descriptor ) ) {
-					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor( $statement_descriptor );
+				if ( ! empty($statement_descriptor)) {
+					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor($statement_descriptor);
 				}
 				break;
 		}
@@ -427,25 +427,25 @@ 
 		$post_data['expand[]'] = 'balance_transaction';
 
 		$metadata = array(
-			__( 'customer_name', 'woocommerce-gateway-stripe' ) => sanitize_text_field( $billing_first_name ) . ' ' . sanitize_text_field( $billing_last_name ),
-			__( 'customer_email', 'woocommerce-gateway-stripe' ) => sanitize_email( $billing_email ),
+			__('customer_name', 'woocommerce-gateway-stripe') => sanitize_text_field($billing_first_name) . ' ' . sanitize_text_field($billing_last_name),
+			__('customer_email', 'woocommerce-gateway-stripe') => sanitize_email($billing_email),
 			'order_id' => $order->get_order_number(),
 		);
 
-		if ( $this->has_subscription( $order->get_id() ) ) {
+		if ($this->has_subscription($order->get_id())) {
 			$metadata += array(
 				'payment_type' => 'recurring',
-				'site_url'     => esc_url( get_site_url() ),
+				'site_url'     => esc_url(get_site_url()),
 			);
 		}
 
-		$post_data['metadata'] = apply_filters( 'wc_stripe_payment_metadata', $metadata, $order, $prepared_source );
+		$post_data['metadata'] = apply_filters('wc_stripe_payment_metadata', $metadata, $order, $prepared_source);
 
-		if ( $prepared_source->customer ) {
+		if ($prepared_source->customer) {
 			$post_data['customer'] = $prepared_source->customer;
 		}
 
-		if ( $prepared_source->source ) {
+		if ($prepared_source->source) {
 			$post_data['source'] = $prepared_source->source;
 		}
 
@@ -457,72 +457,72 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_payment_request', $post_data, $order, $prepared_source );
+		return apply_filters('wc_stripe_generate_payment_request', $post_data, $order, $prepared_source);
 	}
 
 	/**
 	 * Store extra meta data for an order from a Stripe Response.
 	 */
-	public function process_response( $response, $order ) {
-		WC_Stripe_Logger::log( 'Processing response: ' . print_r( $response, true ) );
+	public function process_response($response, $order) {
+		WC_Stripe_Logger::log('Processing response: ' . print_r($response, true));
 
 		$order_id = $order->get_id();
-		$captured = ( isset( $response->captured ) && $response->captured ) ? 'yes' : 'no';
+		$captured = (isset($response->captured) && $response->captured) ? 'yes' : 'no';
 
 		// Store charge data.
-		$order->update_meta_data( '_stripe_charge_captured', $captured );
+		$order->update_meta_data('_stripe_charge_captured', $captured);
 
-		if ( isset( $response->balance_transaction ) ) {
-			$this->update_fees( $order, is_string( $response->balance_transaction ) ? $response->balance_transaction : $response->balance_transaction->id );
+		if (isset($response->balance_transaction)) {
+			$this->update_fees($order, is_string($response->balance_transaction) ? $response->balance_transaction : $response->balance_transaction->id);
 		}
 
-		if ( 'yes' === $captured ) {
+		if ('yes' === $captured) {
 			/**
 			 * Charge can be captured but in a pending state. Payment methods
 			 * that are asynchronous may take couple days to clear. Webhook will
 			 * take care of the status changes.
 			 */
-			if ( 'pending' === $response->status ) {
-				$order_stock_reduced = $order->get_meta( '_order_stock_reduced', true );
+			if ('pending' === $response->status) {
+				$order_stock_reduced = $order->get_meta('_order_stock_reduced', true);
 
-				if ( ! $order_stock_reduced ) {
-					wc_reduce_stock_levels( $order_id );
+				if ( ! $order_stock_reduced) {
+					wc_reduce_stock_levels($order_id);
 				}
 
-				$order->set_transaction_id( $response->id );
+				$order->set_transaction_id($response->id);
 				/* translators: transaction id */
-				$order->update_status( 'on-hold', sprintf( __( 'Stripe charge awaiting payment: %s.', 'woocommerce-gateway-stripe' ), $response->id ) );
+				$order->update_status('on-hold', sprintf(__('Stripe charge awaiting payment: %s.', 'woocommerce-gateway-stripe'), $response->id));
 			}
 
-			if ( 'succeeded' === $response->status ) {
-				$order->payment_complete( $response->id );
+			if ('succeeded' === $response->status) {
+				$order->payment_complete($response->id);
 
 				/* translators: transaction id */
-				$message = sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $response->id );
-				$order->add_order_note( $message );
+				$message = sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $response->id);
+				$order->add_order_note($message);
 			}
 
-			if ( 'failed' === $response->status ) {
-				$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-				$order->add_order_note( $localized_message );
-				throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+			if ('failed' === $response->status) {
+				$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+				$order->add_order_note($localized_message);
+				throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 			}
 		} else {
-			$order->set_transaction_id( $response->id );
+			$order->set_transaction_id($response->id);
 
-			if ( $order->has_status( array( 'pending', 'failed' ) ) ) {
-				wc_reduce_stock_levels( $order_id );
+			if ($order->has_status(array('pending', 'failed'))) {
+				wc_reduce_stock_levels($order_id);
 			}
 
 			/* translators: transaction id */
-			$order->update_status( 'on-hold', sprintf( __( 'Stripe charge authorized (Charge ID: %s). Process order to take payment, or cancel to remove the pre-authorization.', 'woocommerce-gateway-stripe' ), $response->id ) );
+			$order->update_status('on-hold', sprintf(__('Stripe charge authorized (Charge ID: %s). Process order to take payment, or cancel to remove the pre-authorization.', 'woocommerce-gateway-stripe'), $response->id));
 		}
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 
-		do_action( 'wc_gateway_stripe_process_response', $response, $order );
+		do_action('wc_gateway_stripe_process_response', $response, $order);
 
 		return $response;
 	}
@@ -535,10 +535,10 @@ 
 	 * @param int $order_id
 	 * @return null
 	 */
-	public function send_failed_order_email( $order_id ) {
+	public function send_failed_order_email($order_id) {
 		$emails = WC()->mailer()->get_emails();
-		if ( ! empty( $emails ) && ! empty( $order_id ) ) {
-			$emails['WC_Email_Failed_Order']->trigger( $order_id );
+		if ( ! empty($emails) && ! empty($order_id)) {
+			$emails['WC_Email_Failed_Order']->trigger($order_id);
 		}
 	}
 
@@ -550,7 +550,7 @@ 
 	 * @param object $order
 	 * @return object $details
 	 */
-	public function get_owner_details( $order ) {
+	public function get_owner_details($order) {
 		$billing_first_name = $order->get_billing_first_name();
 		$billing_last_name  = $order->get_billing_last_name();
 
@@ -560,15 +560,15 @@ 
 		$email = $order->get_billing_email();
 		$phone = $order->get_billing_phone();
 
-		if ( ! empty( $phone ) ) {
+		if ( ! empty($phone)) {
 			$details['phone'] = $phone;
 		}
 
-		if ( ! empty( $name ) ) {
+		if ( ! empty($name)) {
 			$details['name'] = $name;
 		}
 
-		if ( ! empty( $email ) ) {
+		if ( ! empty($email)) {
 			$details['email'] = $email;
 		}
 
@@ -579,7 +579,7 @@ 
 		$details['address']['postal_code'] = $order->get_billing_postcode();
 		$details['address']['country']     = $order->get_billing_country();
 
-		return (object) apply_filters( 'wc_stripe_owner_details', $details, $order );
+		return (object) apply_filters('wc_stripe_owner_details', $details, $order);
 	}
 
 	/**
@@ -588,15 +588,15 @@ 
 	 * @since 4.0.3
 	 * @param string $source_id The source ID to get source object for.
 	 */
-	public function get_source_object( $source_id = '' ) {
-		if ( empty( $source_id ) ) {
+	public function get_source_object($source_id = '') {
+		if (empty($source_id)) {
 			return '';
 		}
 
-		$source_object = WC_Stripe_API::retrieve( 'sources/' . $source_id );
+		$source_object = WC_Stripe_API::retrieve('sources/' . $source_id);
 
-		if ( ! empty( $source_object->error ) ) {
-			throw new WC_Stripe_Exception( print_r( $source_object, true ), $source_object->error->message );
+		if ( ! empty($source_object->error)) {
+			throw new WC_Stripe_Exception(print_r($source_object, true), $source_object->error->message);
 		}
 
 		return $source_object;
@@ -609,10 +609,10 @@ 
 	 * @param object $source_object
 	 * @return bool
 	 */
-	public function is_prepaid_card( $source_object ) {
+	public function is_prepaid_card($source_object) {
 		return (
 			$source_object
-			&& ( 'token' === $source_object->object || 'source' === $source_object->object )
+			&& ('token' === $source_object->object || 'source' === $source_object->object)
 			&& 'prepaid' === $source_object->card->funding
 		);
 	}
@@ -624,8 +624,8 @@ 
 	 * @param string $source_id
 	 * @return bool
 	 */
-	public function is_type_legacy_card( $source_id ) {
-		return ( preg_match( '/^card_/', $source_id ) );
+	public function is_type_legacy_card($source_id) {
+		return (preg_match('/^card_/', $source_id));
 	}
 
 	/**
@@ -635,9 +635,9 @@ 
 	 * @return bool
 	 */
 	public function is_using_saved_payment_method() {
-		$payment_method = isset( $_POST['payment_method'] ) ? wc_clean( $_POST['payment_method'] ) : 'stripe';
+		$payment_method = isset($_POST['payment_method']) ? wc_clean($_POST['payment_method']) : 'stripe';
 
-		return ( isset( $_POST[ 'wc-' . $payment_method . '-payment-token' ] ) && 'new' !== $_POST[ 'wc-' . $payment_method . '-payment-token' ] );
+		return (isset($_POST['wc-' . $payment_method . '-payment-token']) && 'new' !== $_POST['wc-' . $payment_method . '-payment-token']);
 	}
 
 	/**
@@ -653,64 +653,64 @@ 
 	 * @throws Exception When card was not added or for and invalid card.
 	 * @return object
 	 */
-	public function prepare_source( $user_id, $force_save_source = false, $existing_customer_id = null ) {
-		$customer = new WC_Stripe_Customer( $user_id );
-		if ( ! empty( $existing_customer_id ) ) {
-			$customer->set_id( $existing_customer_id );
+	public function prepare_source($user_id, $force_save_source = false, $existing_customer_id = null) {
+		$customer = new WC_Stripe_Customer($user_id);
+		if ( ! empty($existing_customer_id)) {
+			$customer->set_id($existing_customer_id);
 		}
 
-		$force_save_source = apply_filters( 'wc_stripe_force_save_source', $force_save_source, $customer );
+		$force_save_source = apply_filters('wc_stripe_force_save_source', $force_save_source, $customer);
 		$source_object     = '';
 		$source_id         = '';
 		$wc_token_id       = false;
-		$payment_method    = isset( $_POST['payment_method'] ) ? wc_clean( $_POST['payment_method'] ) : 'stripe';
+		$payment_method    = isset($_POST['payment_method']) ? wc_clean($_POST['payment_method']) : 'stripe';
 		$is_token          = false;
 
 		// New CC info was entered and we have a new source to process.
-		if ( ! empty( $_POST['stripe_source'] ) ) {
-			$source_object = self::get_source_object( wc_clean( $_POST['stripe_source'] ) );
+		if ( ! empty($_POST['stripe_source'])) {
+			$source_object = self::get_source_object(wc_clean($_POST['stripe_source']));
 			$source_id     = $source_object->id;
 
 			// This checks to see if customer opted to save the payment method to file.
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			/**
 			 * This is true if the user wants to store the card to their account.
 			 * Criteria to save to file is they are logged in, they opted to save or product requirements and the source is
 			 * actually reusable. Either that or force_save_source is true.
 			 */
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage ) || $force_save_source ) {
-				$response = $customer->add_source( $source_object->id );
+			if (($user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage) || $force_save_source) {
+				$response = $customer->add_source($source_object->id);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $this->get_localized_error_message_from_response( $response ) );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $this->get_localized_error_message_from_response($response));
 				}
 			}
-		} elseif ( $this->is_using_saved_payment_method() ) {
+		} elseif ($this->is_using_saved_payment_method()) {
 			// Use an existing token, and then process the payment.
-			$wc_token_id = wc_clean( $_POST[ 'wc-' . $payment_method . '-payment-token' ] );
-			$wc_token    = WC_Payment_Tokens::get( $wc_token_id );
+			$wc_token_id = wc_clean($_POST['wc-' . $payment_method . '-payment-token']);
+			$wc_token    = WC_Payment_Tokens::get($wc_token_id);
 
-			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id() ) {
-				WC()->session->set( 'refresh_totals', true );
-				throw new WC_Stripe_Exception( 'Invalid payment method', __( 'Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe' ) );
+			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id()) {
+				WC()->session->set('refresh_totals', true);
+				throw new WC_Stripe_Exception('Invalid payment method', __('Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe'));
 			}
 
 			$source_id = $wc_token->get_token();
 
-			if ( $this->is_type_legacy_card( $source_id ) ) {
+			if ($this->is_type_legacy_card($source_id)) {
 				$is_token = true;
 			}
-		} elseif ( isset( $_POST['stripe_token'] ) && 'new' !== $_POST['stripe_token'] ) {
-			$stripe_token     = wc_clean( $_POST['stripe_token'] );
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+		} elseif (isset($_POST['stripe_token']) && 'new' !== $_POST['stripe_token']) {
+			$stripe_token     = wc_clean($_POST['stripe_token']);
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			// This is true if the user wants to store the card to their account.
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card ) || $force_save_source ) {
-				$response = $customer->add_source( $stripe_token );
+			if (($user_id && $this->saved_cards && $maybe_saved_card) || $force_save_source) {
+				$response = $customer->add_source($stripe_token);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $response->error->message );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $response->error->message);
 				}
 				$source_id    = $response;
 			} else {
@@ -720,15 +720,15 @@ 
 		}
 
 		$customer_id = $customer->get_id();
-		if ( ! $customer_id ) {
-			$customer->set_id( $customer->create_customer() );
+		if ( ! $customer_id) {
+			$customer->set_id($customer->create_customer());
 			$customer_id = $customer->get_id();
 		} else {
 			$customer_id = $customer->update_customer();
 		}
 
-		if ( empty( $source_object ) && ! $is_token ) {
-			$source_object = self::get_source_object( $source_id );
+		if (empty($source_object) && ! $is_token) {
+			$source_object = self::get_source_object($source_id);
 		}
 
 		return (object) array(
@@ -752,39 +752,39 @@ 
 	 * @param object $order
 	 * @return object
 	 */
-	public function prepare_order_source( $order = null ) {
+	public function prepare_order_source($order = null) {
 		$stripe_customer = new WC_Stripe_Customer();
 		$stripe_source   = false;
 		$token_id        = false;
 		$source_object   = false;
 
-		if ( $order ) {
+		if ($order) {
 			$order_id = $order->get_id();
 
-			$stripe_customer_id = get_post_meta( $order_id, '_stripe_customer_id', true );
+			$stripe_customer_id = get_post_meta($order_id, '_stripe_customer_id', true);
 
-			if ( $stripe_customer_id ) {
-				$stripe_customer->set_id( $stripe_customer_id );
+			if ($stripe_customer_id) {
+				$stripe_customer->set_id($stripe_customer_id);
 			}
 
-			$source_id = $order->get_meta( '_stripe_source_id', true );
+			$source_id = $order->get_meta('_stripe_source_id', true);
 
 			// Since 4.0.0, we changed card to source so we need to account for that.
-			if ( empty( $source_id ) ) {
-				$source_id = $order->get_meta( '_stripe_card_id', true );
+			if (empty($source_id)) {
+				$source_id = $order->get_meta('_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				$order->update_meta_data( '_stripe_source_id', $source_id );
+				$order->update_meta_data('_stripe_source_id', $source_id);
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
 
-			if ( $source_id ) {
+			if ($source_id) {
 				$stripe_source = $source_id;
-				$source_object = WC_Stripe_API::retrieve( 'sources/' . $source_id );
-			} elseif ( apply_filters( 'wc_stripe_use_default_customer_source', true ) ) {
+				$source_object = WC_Stripe_API::retrieve('sources/' . $source_id);
+			} elseif (apply_filters('wc_stripe_use_default_customer_source', true)) {
 				/*
 				 * We can attempt to charge the customer's default source
 				 * by sending empty source id.
@@ -809,17 +809,17 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $source Source information.
 	 */
-	public function save_source_to_order( $order, $source ) {
+	public function save_source_to_order($order, $source) {
 		// Store source in the order.
-		if ( $source->customer ) {
-			$order->update_meta_data( '_stripe_customer_id', $source->customer );
+		if ($source->customer) {
+			$order->update_meta_data('_stripe_customer_id', $source->customer);
 		}
 
-		if ( $source->source ) {
-			$order->update_meta_data( '_stripe_source_id', $source->source );
+		if ($source->source) {
+			$order->update_meta_data('_stripe_source_id', $source->source);
 		}
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -833,36 +833,36 @@ 
 	 * @param object $order The order object
 	 * @param int $balance_transaction_id
 	 */
-	public function update_fees( $order, $balance_transaction_id ) {
-		$balance_transaction = WC_Stripe_API::retrieve( 'balance/history/' . $balance_transaction_id );
+	public function update_fees($order, $balance_transaction_id) {
+		$balance_transaction = WC_Stripe_API::retrieve('balance/history/' . $balance_transaction_id);
 
-		if ( empty( $balance_transaction->error ) ) {
-			if ( isset( $balance_transaction ) && isset( $balance_transaction->fee ) ) {
+		if (empty($balance_transaction->error)) {
+			if (isset($balance_transaction) && isset($balance_transaction->fee)) {
 				// Fees and Net needs to both come from Stripe to be accurate as the returned
 				// values are in the local currency of the Stripe account, not from WC.
-				$fee_refund = ! empty( $balance_transaction->fee ) ? WC_Stripe_Helper::format_balance_fee( $balance_transaction, 'fee' ) : 0;
-				$net_refund = ! empty( $balance_transaction->net ) ? WC_Stripe_Helper::format_balance_fee( $balance_transaction, 'net' ) : 0;
+				$fee_refund = ! empty($balance_transaction->fee) ? WC_Stripe_Helper::format_balance_fee($balance_transaction, 'fee') : 0;
+				$net_refund = ! empty($balance_transaction->net) ? WC_Stripe_Helper::format_balance_fee($balance_transaction, 'net') : 0;
 
 				// Current data fee & net.
-				$fee_current = WC_Stripe_Helper::get_stripe_fee( $order );
-				$net_current = WC_Stripe_Helper::get_stripe_net( $order );
+				$fee_current = WC_Stripe_Helper::get_stripe_fee($order);
+				$net_current = WC_Stripe_Helper::get_stripe_net($order);
 
 				// Calculation.
 				$fee = (float) $fee_current + (float) $fee_refund;
 				$net = (float) $net_current + (float) $net_refund;
 
-				WC_Stripe_Helper::update_stripe_fee( $order, $fee );
-				WC_Stripe_Helper::update_stripe_net( $order, $net );
+				WC_Stripe_Helper::update_stripe_fee($order, $fee);
+				WC_Stripe_Helper::update_stripe_net($order, $net);
 
-				$currency = ! empty( $balance_transaction->currency ) ? strtoupper( $balance_transaction->currency ) : null;
-				WC_Stripe_Helper::update_stripe_currency( $order, $currency );
+				$currency = ! empty($balance_transaction->currency) ? strtoupper($balance_transaction->currency) : null;
+				WC_Stripe_Helper::update_stripe_currency($order, $currency);
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
 		} else {
-			WC_Stripe_Logger::log( 'Unable to update fees/net meta for order: ' . $order->get_id() );
+			WC_Stripe_Logger::log('Unable to update fees/net meta for order: ' . $order->get_id());
 		}
 	}
 
@@ -875,93 +875,93 @@ 
 	 * @param  float $amount
 	 * @return bool
 	 */
-	public function process_refund( $order_id, $amount = null, $reason = '' ) {
-		$order = wc_get_order( $order_id );
+	public function process_refund($order_id, $amount = null, $reason = '') {
+		$order = wc_get_order($order_id);
 
-		if ( ! $order ) {
+		if ( ! $order) {
 			return false;
 		}
 
 		$request = array();
 
 		$order_currency = $order->get_currency();
-		$captured       = $order->get_meta( '_stripe_charge_captured', true );
+		$captured       = $order->get_meta('_stripe_charge_captured', true);
 		$charge_id      = $order->get_transaction_id();
 
-		if ( ! $charge_id ) {
+		if ( ! $charge_id) {
 			return false;
 		}
 
-		if ( ! is_null( $amount ) ) {
-			$request['amount'] = WC_Stripe_Helper::get_stripe_amount( $amount, $order_currency );
+		if ( ! is_null($amount)) {
+			$request['amount'] = WC_Stripe_Helper::get_stripe_amount($amount, $order_currency);
 		}
 
 		// If order is only authorized, don't pass amount.
-		if ( 'yes' !== $captured ) {
-			unset( $request['amount'] );
+		if ('yes' !== $captured) {
+			unset($request['amount']);
 		}
 
-		if ( $reason ) {
+		if ($reason) {
 			$request['metadata'] = array(
 				'reason' => $reason,
 			);
 		}
 
 		$request['charge'] = $charge_id;
-		WC_Stripe_Logger::log( "Info: Beginning refund for order {$charge_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Beginning refund for order {$charge_id} for the amount of {$amount}");
 
-		$request = apply_filters( 'wc_stripe_refund_request', $request, $order );
+		$request = apply_filters('wc_stripe_refund_request', $request, $order);
 
-		$intent = $this->get_intent_from_order( $order );
+		$intent = $this->get_intent_from_order($order);
 		$intent_cancelled = false;
-		if ( $intent ) {
+		if ($intent) {
 			// If the order has a Payment Intent pending capture, then the Intent itself must be refunded (cancelled), not the Charge
-			if ( ! empty( $intent->error ) ) {
+			if ( ! empty($intent->error)) {
 				$response = $intent;
 				$intent_cancelled = true;
-			} elseif ( 'requires_capture' === $intent->status ) {
+			} elseif ('requires_capture' === $intent->status) {
 				$result = WC_Stripe_API::request(
 					array(),
 					'payment_intents/' . $intent->id . '/cancel'
 				);
 				$intent_cancelled = true;
 
-				if ( ! empty( $result->error ) ) {
+				if ( ! empty($result->error)) {
 					$response = $result;
 				} else {
-					$charge = end( $result->charges->data );
-					$response = end( $charge->refunds->data );
+					$charge = end($result->charges->data);
+					$response = end($charge->refunds->data);
 				}
 			}
 		}
 
-		if ( ! $intent_cancelled ) {
-			$response = WC_Stripe_API::request( $request, 'refunds' );
+		if ( ! $intent_cancelled) {
+			$response = WC_Stripe_API::request($request, 'refunds');
 		}
 
-		if ( ! empty( $response->error ) ) {
-			WC_Stripe_Logger::log( 'Error: ' . $response->error->message );
+		if ( ! empty($response->error)) {
+			WC_Stripe_Logger::log('Error: ' . $response->error->message);
 
 			return $response;
 
-		} elseif ( ! empty( $response->id ) ) {
-			$order->update_meta_data( '_stripe_refund_id', $response->id );
+		} elseif ( ! empty($response->id)) {
+			$order->update_meta_data('_stripe_refund_id', $response->id);
 
-			$amount = wc_price( $response->amount / 100 );
+			$amount = wc_price($response->amount / 100);
 
-			if ( in_array( strtolower( $order->get_currency() ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-				$amount = wc_price( $response->amount );
+			if (in_array(strtolower($order->get_currency()), WC_Stripe_Helper::no_decimal_currencies())) {
+				$amount = wc_price($response->amount);
 			}
 
-			if ( isset( $response->balance_transaction ) ) {
-				$this->update_fees( $order, $response->balance_transaction );
+			if (isset($response->balance_transaction)) {
+				$this->update_fees($order, $response->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$s - Reason: %3$s', 'woocommerce-gateway-stripe' ), $amount, $response->id, $reason ) : __( 'Pre-Authorization Released', 'woocommerce-gateway-stripe' );
+			$refund_message = (isset($captured) && 'yes' === $captured) ? sprintf(__('Refunded %1$s - Refund ID: %2$s - Reason: %3$s', 'woocommerce-gateway-stripe'), $amount, $response->id, $reason) : __('Pre-Authorization Released', 'woocommerce-gateway-stripe');
 
-			$order->add_order_note( $refund_message );
-			WC_Stripe_Logger::log( 'Success: ' . html_entity_decode( wp_strip_all_tags( $refund_message ) ) );
+			$order->add_order_note($refund_message);
+			WC_Stripe_Logger::log('Success: ' . html_entity_decode(wp_strip_all_tags($refund_message)));
 
 			return true;
 		}
@@ -976,46 +976,46 @@ 
 	 */
 	public function add_payment_method() {
 		$error     = false;
-		$error_msg = __( 'There was a problem adding the payment method.', 'woocommerce-gateway-stripe' );
+		$error_msg = __('There was a problem adding the payment method.', 'woocommerce-gateway-stripe');
 		$source_id = '';
 
-		if ( empty( $_POST['stripe_source'] ) && empty( $_POST['stripe_token'] ) || ! is_user_logged_in() ) {
+		if (empty($_POST['stripe_source']) && empty($_POST['stripe_token']) || ! is_user_logged_in()) {
 			$error = true;
 		}
 
-		$stripe_customer = new WC_Stripe_Customer( get_current_user_id() );
+		$stripe_customer = new WC_Stripe_Customer(get_current_user_id());
 
-		$source = ! empty( $_POST['stripe_source'] ) ? wc_clean( $_POST['stripe_source'] ) : '';
+		$source = ! empty($_POST['stripe_source']) ? wc_clean($_POST['stripe_source']) : '';
 
-		$source_object = WC_Stripe_API::retrieve( 'sources/' . $source );
+		$source_object = WC_Stripe_API::retrieve('sources/' . $source);
 
-		if ( isset( $source_object ) ) {
-			if ( ! empty( $source_object->error ) ) {
+		if (isset($source_object)) {
+			if ( ! empty($source_object->error)) {
 				$error = true;
 			}
 
 			$source_id = $source_object->id;
-		} elseif ( isset( $_POST['stripe_token'] ) ) {
-			$source_id = wc_clean( $_POST['stripe_token'] );
+		} elseif (isset($_POST['stripe_token'])) {
+			$source_id = wc_clean($_POST['stripe_token']);
 		}
 
-		$response = $stripe_customer->add_source( $source_id );
+		$response = $stripe_customer->add_source($source_id);
 
-		if ( ! $response || is_wp_error( $response ) || ! empty( $response->error ) ) {
+		if ( ! $response || is_wp_error($response) || ! empty($response->error)) {
 			$error = true;
 		}
 
-		if ( $error ) {
-			wc_add_notice( $error_msg, 'error' );
-			WC_Stripe_Logger::log( 'Add payment method Error: ' . $error_msg );
+		if ($error) {
+			wc_add_notice($error_msg, 'error');
+			WC_Stripe_Logger::log('Add payment method Error: ' . $error_msg);
 			return;
 		}
 
-		do_action( 'wc_stripe_add_payment_method_' . $_POST['payment_method'] . '_success', $source_id, $source_object );
+		do_action('wc_stripe_add_payment_method_' . $_POST['payment_method'] . '_success', $source_id, $source_object);
 
 		return array(
 			'result'   => 'success',
-			'redirect' => wc_get_endpoint_url( 'payment-methods' ),
+			'redirect' => wc_get_endpoint_url('payment-methods'),
 		);
 	}
 
@@ -1032,10 +1032,10 @@ 
 		 * Stripe expects Norwegian to only be passed NO.
 		 * But WP has different dialects.
 		 */
-		if ( 'NO' === substr( $locale, 3, 2 ) ) {
+		if ('NO' === substr($locale, 3, 2)) {
 			$locale = 'no';
 		} else {
-			$locale = substr( get_locale(), 0, 2 );
+			$locale = substr(get_locale(), 0, 2);
 		}
 
 		return $locale;
@@ -1049,9 +1049,9 @@ 
 	 * @param string $idempotency_key
 	 * @param array $request
 	 */
-	public function change_idempotency_key( $idempotency_key, $request ) {
-		$customer = ! empty( $request['customer'] ) ? $request['customer'] : '';
-		$source   = ! empty( $request['source'] ) ? $request['source'] : $customer;
+	public function change_idempotency_key($idempotency_key, $request) {
+		$customer = ! empty($request['customer']) ? $request['customer'] : '';
+		$source   = ! empty($request['source']) ? $request['source'] : $customer;
 		$count    = $this->retry_interval;
 
 		return $request['metadata']['order_id'] . '-' . $count . '-' . $source;
@@ -1065,8 +1065,8 @@ 
 	 * @since 4.0.6
 	 * @param array $headers
 	 */
-	public function is_original_request( $headers ) {
-		if ( $headers['original-request'] === $headers['request-id'] ) {
+	public function is_original_request($headers) {
+		if ($headers['original-request'] === $headers['request-id']) {
 			return true;
 		}
 
@@ -1080,27 +1080,27 @@ 
 	 * @param object   $prepared_source The source that is used for the payment.
 	 * @return array                    The arguments for the request.
 	 */
-	public function generate_create_intent_request( $order, $prepared_source ) {
+	public function generate_create_intent_request($order, $prepared_source) {
 		// The request for a charge contains metadata for the intent.
-		$full_request = $this->generate_payment_request( $order, $prepared_source );
+		$full_request = $this->generate_payment_request($order, $prepared_source);
 
 		$request = array(
 			'source'               => $prepared_source->source,
-			'amount'               => WC_Stripe_Helper::get_stripe_amount( $order->get_total() ),
-			'currency'             => strtolower( $order->get_currency() ),
+			'amount'               => WC_Stripe_Helper::get_stripe_amount($order->get_total()),
+			'currency'             => strtolower($order->get_currency()),
 			'description'          => $full_request['description'],
 			'metadata'             => $full_request['metadata'],
-			'capture_method'       => ( 'true' === $full_request['capture'] ) ? 'automatic' : 'manual',
+			'capture_method'       => ('true' === $full_request['capture']) ? 'automatic' : 'manual',
 			'payment_method_types' => array(
 				'card',
 			),
 		);
 
-		if ( $prepared_source->customer ) {
+		if ($prepared_source->customer) {
 			$request['customer'] = $prepared_source->customer;
 		}
 
-		if ( isset( $full_request['statement_descriptor'] ) ) {
+		if (isset($full_request['statement_descriptor'])) {
 			$request['statement_descriptor'] = $full_request['statement_descriptor'];
 		}
 
@@ -1112,7 +1112,7 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_create_intent_request', $request, $order, $prepared_source );
+		return apply_filters('wc_stripe_generate_create_intent_request', $request, $order, $prepared_source);
 	}
 
 	/**
@@ -1121,21 +1121,21 @@ 
 	 * @param WC_Order $order The order that is being paid for.
 	 * @return array          The level 3 data to send to Stripe.
 	 */
-	public function get_level3_data_from_order( $order ) {
+	public function get_level3_data_from_order($order) {
 		// Get the order items. Don't need their keys, only their values.
 		// Order item IDs are used as keys in the original order items array.
-		$order_items = array_values( $order->get_items() );
+		$order_items = array_values($order->get_items());
 		$currency    = $order->get_currency();
 
-		$stripe_line_items = array_map(function( $item ) use ( $currency ) {
+		$stripe_line_items = array_map(function($item) use ($currency) {
 			$product_id          = $item->get_variation_id()
 				? $item->get_variation_id()
 				: $item->get_product_id();
-			$product_description = substr( $item->get_name(), 0, 26 );
+			$product_description = substr($item->get_name(), 0, 26);
 			$quantity            = $item->get_quantity();
-			$unit_cost           = WC_Stripe_Helper::get_stripe_amount( ( $item->get_subtotal() / $quantity ), $currency );
-			$tax_amount          = WC_Stripe_Helper::get_stripe_amount( $item->get_total_tax(), $currency );
-			$discount_amount     = WC_Stripe_Helper::get_stripe_amount( $item->get_subtotal() - $item->get_total(), $currency );
+			$unit_cost           = WC_Stripe_Helper::get_stripe_amount(($item->get_subtotal() / $quantity), $currency);
+			$tax_amount          = WC_Stripe_Helper::get_stripe_amount($item->get_total_tax(), $currency);
+			$discount_amount     = WC_Stripe_Helper::get_stripe_amount($item->get_subtotal() - $item->get_total(), $currency);
 
 			return (object) array(
 				'product_code'        => (string) $product_id, // Up to 12 characters that uniquely identify the product.
@@ -1149,19 +1149,19 @@ 
 
 		$level3_data = array(
 			'merchant_reference'   => $order->get_id(), // An alphanumeric string of up to  characters in length. This unique value is assigned by the merchant to identify the order. Also known as an “Order ID”.
-			'shipping_amount'      => WC_Stripe_Helper::get_stripe_amount( (float) $order->get_shipping_total() + (float) $order->get_shipping_tax(), $currency), // The shipping cost, in cents, as a non-negative integer.
+			'shipping_amount'      => WC_Stripe_Helper::get_stripe_amount((float) $order->get_shipping_total() + (float) $order->get_shipping_tax(), $currency), // The shipping cost, in cents, as a non-negative integer.
 			'line_items'           => $stripe_line_items,
 		);
 
 		// The customer’s U.S. shipping ZIP code.
 		$shipping_address_zip = $order->get_shipping_postcode();
-		if ( $this->is_valid_us_zip_code( $shipping_address_zip ) ) {
+		if ($this->is_valid_us_zip_code($shipping_address_zip)) {
 			$level3_data['shipping_address_zip'] = $shipping_address_zip;
 		}
 
 		// The merchant’s U.S. shipping ZIP code.
-		$store_postcode = get_option( 'woocommerce_store_postcode' );
-		if ( $this->is_valid_us_zip_code( $store_postcode ) ) {
+		$store_postcode = get_option('woocommerce_store_postcode');
+		if ($this->is_valid_us_zip_code($store_postcode)) {
 			$level3_data['shipping_from_zip'] = $store_postcode;
 		}
 
@@ -1175,20 +1175,20 @@ 
 	 * @param object   $prepared_source The source that is used for the payment.
 	 * @return object                   An intent or an error.
 	 */
-	public function create_intent( $order, $prepared_source ) {
-		$request = $this->generate_create_intent_request( $order, $prepared_source );
+	public function create_intent($order, $prepared_source) {
+		$request = $this->generate_create_intent_request($order, $prepared_source);
 
 		// Create an intent that awaits an action.
-		$intent = WC_Stripe_API::request( $request, 'payment_intents' );
-		if ( ! empty( $intent->error ) ) {
+		$intent = WC_Stripe_API::request($request, 'payment_intents');
+		if ( ! empty($intent->error)) {
 			return $intent;
 		}
 
 		$order_id = $order->get_id();
-		WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id initiated for order $order_id" );
+		WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id initiated for order $order_id");
 
 		// Save the intent ID to the order.
-		$this->save_intent_to_order( $order, $intent );
+		$this->save_intent_to_order($order, $intent);
 
 		return $intent;
 	}
@@ -1201,27 +1201,27 @@ 
 	 * @param object   $prepared_source Currently selected source.
 	 * @return object                   An updated intent.
 	 */
-	public function update_existing_intent( $intent, $order, $prepared_source ) {
+	public function update_existing_intent($intent, $order, $prepared_source) {
 		$request = array();
 
-		if ( $prepared_source->source !== $intent->source ) {
+		if ($prepared_source->source !== $intent->source) {
 			$request['source'] = $prepared_source->source;
 		}
 
-		$new_amount = WC_Stripe_Helper::get_stripe_amount( $order->get_total() );
-		if ( $intent->amount !== $new_amount ) {
+		$new_amount = WC_Stripe_Helper::get_stripe_amount($order->get_total());
+		if ($intent->amount !== $new_amount) {
 			$request['amount'] = $new_amount;
 		}
 
-		if ( $prepared_source->customer && $intent->customer !== $prepared_source->customer ) {
+		if ($prepared_source->customer && $intent->customer !== $prepared_source->customer) {
 			$request['customer'] = $prepared_source->customer;
 		}
 
-		if ( empty( $request ) ) {
+		if (empty($request)) {
 			return $intent;
 		}
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		return WC_Stripe_API::request_with_level3_data(
 			$request,
 			"payment_intents/$intent->id",
@@ -1239,8 +1239,8 @@ 
 	 * @param object   $prepared_source The source that is being charged.
 	 * @return object                   Either an error or the updated intent.
 	 */
-	public function confirm_intent( $intent, $order, $prepared_source ) {
-		if ( 'requires_confirmation' !== $intent->status ) {
+	public function confirm_intent($intent, $order, $prepared_source) {
+		if ('requires_confirmation' !== $intent->status) {
 			return $intent;
 		}
 
@@ -1249,7 +1249,7 @@ 
 			'source' => $prepared_source->source,
 		);
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		$confirmed_intent = WC_Stripe_API::request_with_level3_data(
 			$confirm_request,
 			"payment_intents/$intent->id/confirm",
@@ -1257,16 +1257,16 @@ 
 			$order
 		);
 
-		if ( ! empty( $confirmed_intent->error ) ) {
+		if ( ! empty($confirmed_intent->error)) {
 			return $confirmed_intent;
 		}
 
 		// Save a note about the status of the intent.
 		$order_id = $order->get_id();
-		if ( 'succeeded' === $confirmed_intent->status ) {
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id succeeded for order $order_id" );
-		} elseif ( 'requires_action' === $confirmed_intent->status ) {
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id requires authentication for order $order_id" );
+		if ('succeeded' === $confirmed_intent->status) {
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id succeeded for order $order_id");
+		} elseif ('requires_action' === $confirmed_intent->status) {
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id requires authentication for order $order_id");
 		}
 
 		return $confirmed_intent;
@@ -1279,10 +1279,10 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $intent Payment intent information.
 	 */
-	public function save_intent_to_order( $order, $intent ) {
-		$order->update_meta_data( '_stripe_intent_id', $intent->id );
+	public function save_intent_to_order($order, $intent) {
+		$order->update_meta_data('_stripe_intent_id', $intent->id);
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -1294,18 +1294,18 @@ 
 	 * @param WC_Order $order The order to retrieve an intent for.
 	 * @return obect|bool     Either the intent object or `false`.
 	 */
-	public function get_intent_from_order( $order ) {
-		$intent_id = $order->get_meta( '_stripe_intent_id' );
+	public function get_intent_from_order($order) {
+		$intent_id = $order->get_meta('_stripe_intent_id');
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'payment_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('payment_intents', $intent_id);
 		}
 
 		// The order doesn't have a payment intent, but it may have a setup intent.
-		$intent_id = $order->get_meta( '_stripe_setup_intent' );
+		$intent_id = $order->get_meta('_stripe_setup_intent');
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'setup_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('setup_intents', $intent_id);
 		}
 
 		return false;
@@ -1319,15 +1319,15 @@ 
 	 * @return object|bool 			Either the intent object or `false`.
 	 * @throws Exception 			Throws exception for unknown $intent_type.
 	 */
-	private function get_intent( $intent_type, $intent_id ) {
-		if ( ! in_array( $intent_type, [ 'payment_intents', 'setup_intents' ] ) ) {
-			throw new Exception( "Failed to get intent of type $intent_type. Type is not allowed" );
+	private function get_intent($intent_type, $intent_id) {
+		if ( ! in_array($intent_type, ['payment_intents', 'setup_intents'])) {
+			throw new Exception("Failed to get intent of type $intent_type. Type is not allowed");
 		}
 
-		$response = WC_Stripe_API::request( array(), "$intent_type/$intent_id", 'GET' );
+		$response = WC_Stripe_API::request(array(), "$intent_type/$intent_id", 'GET');
 
-		if ( $response && isset( $response->{ 'error' } ) ) {
-			$error_response_message = print_r( $response, true );
+		if ($response && isset($response->{ 'error' } )) {
+			$error_response_message = print_r($response, true);
 			WC_Stripe_Logger::log("Failed to get Stripe intent $intent_type/$intent_id.");
 			WC_Stripe_Logger::log("Response: $error_response_message");
 			return false;
@@ -1344,18 +1344,18 @@ 
 	 * @param stdClass $intent The intent that is being processed.
 	 * @return bool            A flag that indicates whether the order is already locked.
 	 */
-	public function lock_order_payment( $order, $intent = null ) {
+	public function lock_order_payment($order, $intent = null) {
 		$order_id       = $order->get_id();
 		$transient_name = 'wc_stripe_processing_intent_' . $order_id;
-		$processing     = get_transient( $transient_name );
+		$processing     = get_transient($transient_name);
 
 		// Block the process if the same intent is already being handled.
-		if ( "-1" === $processing || ( isset( $intent->id ) && $processing === $intent->id ) ) {
+		if ("-1" === $processing || (isset($intent->id) && $processing === $intent->id)) {
 			return true;
 		}
 
 		// Save the new intent as a transient, eventually overwriting another one.
-		set_transient( $transient_name, empty( $intent ) ? '-1' : $intent->id, 5 * MINUTE_IN_SECONDS );
+		set_transient($transient_name, empty($intent) ? '-1' : $intent->id, 5 * MINUTE_IN_SECONDS);
 
 		return false;
 	}
@@ -1366,9 +1366,9 @@ 
 	 * @since 4.2
 	 * @param WC_Order $order The order that is being unlocked.
 	 */
-	public function unlock_order_payment( $order ) {
+	public function unlock_order_payment($order) {
 		$order_id = $order->get_id();
-		delete_transient( 'wc_stripe_processing_intent_' . $order_id );
+		delete_transient('wc_stripe_processing_intent_' . $order_id);
 	}
 
 	/**
@@ -1378,9 +1378,9 @@ 
 	 * @param object $response The response from Stripe.
 	 * @return boolean Whether or not it's a 'authentication_required' error
 	 */
-	public function is_authentication_required_for_payment( $response ) {
-		return ( ! empty( $response->error ) && 'authentication_required' === $response->error->code )
-			|| ( ! empty( $response->last_payment_error ) && 'authentication_required' === $response->last_payment_error->code );
+	public function is_authentication_required_for_payment($response) {
+		return ( ! empty($response->error) && 'authentication_required' === $response->error->code)
+			|| ( ! empty($response->last_payment_error) && 'authentication_required' === $response->last_payment_error->code);
 	}
 
 	/**
@@ -1390,18 +1390,18 @@ 
 	 * @param object   $prepared_source The source, entered/chosen by the customer.
 	 * @return string                   The client secret of the intent, used for confirmation in JS.
 	 */
-	public function setup_intent( $order, $prepared_source ) {
+	public function setup_intent($order, $prepared_source) {
 		$order_id     = $order->get_id();
-		$setup_intent = WC_Stripe_API::request( array(
+		$setup_intent = WC_Stripe_API::request(array(
 			'payment_method' => $prepared_source->source,
 			'customer'       => $prepared_source->customer,
 			'confirm'        => 'true',
-		), 'setup_intents' );
+		), 'setup_intents');
 
-		if ( is_wp_error( $setup_intent ) ) {
-			WC_Stripe_Logger::log( "Unable to create SetupIntent for Order #$order_id: " . print_r( $setup_intent, true ) );
-		} elseif ( 'requires_action' === $setup_intent->status ) {
-			$order->update_meta_data( '_stripe_setup_intent', $setup_intent->id );
+		if (is_wp_error($setup_intent)) {
+			WC_Stripe_Logger::log("Unable to create SetupIntent for Order #$order_id: " . print_r($setup_intent, true));
+		} elseif ('requires_action' === $setup_intent->status) {
+			$order->update_meta_data('_stripe_setup_intent', $setup_intent->id);
 			$order->save();
 
 			return $setup_intent->client_secret;
@@ -1416,12 +1416,12 @@ 
 	 * @param float    $amount          The amount to charge. If not specified, it will be read from the order.
 	 * @return object                   An intent or an error.
 	 */
-	public function create_and_confirm_intent_for_off_session( $order, $prepared_source, $amount = NULL ) {
+	public function create_and_confirm_intent_for_off_session($order, $prepared_source, $amount = NULL) {
 		// The request for a charge contains metadata for the intent.
-		$full_request = $this->generate_payment_request( $order, $prepared_source );
+		$full_request = $this->generate_payment_request($order, $prepared_source);
 
 		$request = array(
-			'amount'               => $amount ? WC_Stripe_Helper::get_stripe_amount( $amount, $full_request['currency'] ) : $full_request['amount'],
+			'amount'               => $amount ? WC_Stripe_Helper::get_stripe_amount($amount, $full_request['currency']) : $full_request['amount'],
 			'currency'             => $full_request['currency'],
 			'description'          => $full_request['description'],
 			'metadata'             => $full_request['metadata'],
@@ -1433,44 +1433,44 @@ 
 			'confirmation_method'  => 'automatic',
 		);
 
-		if ( isset( $full_request['statement_descriptor'] ) ) {
+		if (isset($full_request['statement_descriptor'])) {
 			$request['statement_descriptor'] = $full_request['statement_descriptor'];
 		}
 
-		if ( isset( $full_request['customer'] ) ) {
+		if (isset($full_request['customer'])) {
 			$request['customer'] = $full_request['customer'];
 		}
 
-		if ( isset( $full_request['source'] ) ) {
+		if (isset($full_request['source'])) {
 			$request['source'] = $full_request['source'];
 		}
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		$intent = WC_Stripe_API::request_with_level3_data(
 			$request,
 			'payment_intents',
 			$level3_data,
 			$order
 		);
-		$is_authentication_required = $this->is_authentication_required_for_payment( $intent );
+		$is_authentication_required = $this->is_authentication_required_for_payment($intent);
 
-		if ( ! empty( $intent->error ) && ! $is_authentication_required ) {
+		if ( ! empty($intent->error) && ! $is_authentication_required) {
 			return $intent;
 		}
 
-		$intent_id      = ( ! empty( $intent->error )
+		$intent_id = ( ! empty($intent->error)
 			? $intent->error->payment_intent->id
 			: $intent->id
 		);
-		$payment_intent = ( ! empty( $intent->error )
+		$payment_intent = ( ! empty($intent->error)
 			? $intent->error->payment_intent
 			: $intent
 		);
-		$order_id       = $order->get_id();
-		WC_Stripe_Logger::log( "Stripe PaymentIntent $intent_id initiated for order $order_id" );
+		$order_id = $order->get_id();
+		WC_Stripe_Logger::log("Stripe PaymentIntent $intent_id initiated for order $order_id");
 
 		// Save the intent ID to the order.
-		$this->save_intent_to_order( $order, $payment_intent );
+		$this->save_intent_to_order($order, $payment_intent);
 
 		return $intent;
 	}
@@ -1481,13 +1481,13 @@ 
 	 * Fix renewal for existing subscriptions affected by https://github.com/woocommerce/woocommerce-gateway-stripe/issues/1072.
 	 * @param int $order_id subscription renewal order id.
 	 */
-	public function ensure_subscription_has_customer_id( $order_id ) {
-		$subscriptions_ids = wcs_get_subscriptions_for_order( $order_id, array( 'order_type' => 'any' ) );
-		foreach( $subscriptions_ids as $subscription_id => $subscription ) {
-			if ( ! metadata_exists( 'post', $subscription_id, '_stripe_customer_id' ) ) {
-				$stripe_customer = new WC_Stripe_Customer( $subscription->get_user_id() );
-				update_post_meta( $subscription_id, '_stripe_customer_id', $stripe_customer->get_id() );
-				update_post_meta( $order_id, '_stripe_customer_id', $stripe_customer->get_id() );
+	public function ensure_subscription_has_customer_id($order_id) {
+		$subscriptions_ids = wcs_get_subscriptions_for_order($order_id, array('order_type' => 'any'));
+		foreach ($subscriptions_ids as $subscription_id => $subscription) {
+			if ( ! metadata_exists('post', $subscription_id, '_stripe_customer_id')) {
+				$stripe_customer = new WC_Stripe_Customer($subscription->get_user_id());
+				update_post_meta($subscription_id, '_stripe_customer_id', $stripe_customer->get_id());
+				update_post_meta($order_id, '_stripe_customer_id', $stripe_customer->get_id());
 			}
 		}
 	}
@@ -1497,7 +1497,7 @@ 
 	 * @param string $zip The ZIP code to verify.
 	 * @return boolean
 	 */
-	public function is_valid_us_zip_code( $zip ) {
-		return ! empty( $zip ) && preg_match( '/^\d{5,5}(-\d{4,4})?$/', $zip );
+	public function is_valid_us_zip_code($zip) {
+		return ! empty($zip) && preg_match('/^\d{5,5}(-\d{4,4})?$/', $zip);
 	}
 }