woocommerce / woocommerce-gateway-stripe

includes/class-wc-gateway-stripe.php

Spacing +284 added lines, -284 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -113,8 +113,8 @@ 
 	 */
 	public function __construct() {
 		$this->id                   = 'stripe';
-		$this->method_title         = __( 'Stripe', 'woocommerce-gateway-stripe' );
-		$this->method_description   = __( 'Stripe works by adding credit card fields on the checkout and then sending the details to Stripe for verification.', 'woocommerce-gateway-stripe' );
+		$this->method_title         = __('Stripe', 'woocommerce-gateway-stripe');
+		$this->method_description   = __('Stripe works by adding credit card fields on the checkout and then sending the details to Stripe for verification.', 'woocommerce-gateway-stripe');
 		$this->has_fields           = true;
 		$this->view_transaction_url = 'https://dashboard.stripe.com/payments/%s';
 		$this->supports             = array(
@@ -142,42 +142,42 @@ 
 		$this->init_settings();
 
 		// Get setting values.
-		$this->title                  = $this->get_option( 'title' );
-		$this->description            = $this->get_option( 'description' );
-		$this->enabled                = $this->get_option( 'enabled' );
-		$this->testmode               = 'yes' === $this->get_option( 'testmode' );
-		$this->capture                = 'yes' === $this->get_option( 'capture', 'yes' );
-		$this->statement_descriptor   = $this->get_option( 'statement_descriptor', wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ) );
-		$this->stripe_checkout        = 'yes' === $this->get_option( 'stripe_checkout' );
-		$this->stripe_checkout_locale = $this->get_option( 'stripe_checkout_locale' );
-		$this->stripe_checkout_image  = $this->get_option( 'stripe_checkout_image', '' );
-		$this->saved_cards            = 'yes' === $this->get_option( 'saved_cards' );
-		$this->secret_key             = $this->testmode ? $this->get_option( 'test_secret_key' ) : $this->get_option( 'secret_key' );
-		$this->publishable_key        = $this->testmode ? $this->get_option( 'test_publishable_key' ) : $this->get_option( 'publishable_key' );
-		$this->bitcoin                = 'USD' === strtoupper( get_woocommerce_currency() ) && 'yes' === $this->get_option( 'stripe_bitcoin' );
-		$this->apple_pay              = 'yes' === $this->get_option( 'apple_pay', 'yes' );
-		$this->apple_pay_domain_set   = 'yes' === $this->get_option( 'apple_pay_domain_set', 'no' );
-		$this->apple_pay_button       = $this->get_option( 'apple_pay_button', 'black' );
-		$this->logging                = 'yes' === $this->get_option( 'logging' );
-
-		if ( $this->stripe_checkout ) {
-			$this->order_button_text = __( 'Continue to payment', 'woocommerce-gateway-stripe' );
-		}
-
-		if ( $this->testmode ) {
-			$this->description .= ' ' . sprintf( __( 'TEST MODE ENABLED. In test mode, you can use the card number 4242424242424242 with any CVC and a valid expiration date or check the documentation "<a href="%s">Testing Stripe</a>" for more card numbers.', 'woocommerce-gateway-stripe' ), 'https://stripe.com/docs/testing' );
-			$this->description  = trim( $this->description );
-		}
-
-		WC_Stripe_API::set_secret_key( $this->secret_key );
+		$this->title                  = $this->get_option('title');
+		$this->description            = $this->get_option('description');
+		$this->enabled                = $this->get_option('enabled');
+		$this->testmode               = 'yes' === $this->get_option('testmode');
+		$this->capture                = 'yes' === $this->get_option('capture', 'yes');
+		$this->statement_descriptor   = $this->get_option('statement_descriptor', wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES));
+		$this->stripe_checkout        = 'yes' === $this->get_option('stripe_checkout');
+		$this->stripe_checkout_locale = $this->get_option('stripe_checkout_locale');
+		$this->stripe_checkout_image  = $this->get_option('stripe_checkout_image', '');
+		$this->saved_cards            = 'yes' === $this->get_option('saved_cards');
+		$this->secret_key             = $this->testmode ? $this->get_option('test_secret_key') : $this->get_option('secret_key');
+		$this->publishable_key        = $this->testmode ? $this->get_option('test_publishable_key') : $this->get_option('publishable_key');
+		$this->bitcoin                = 'USD' === strtoupper(get_woocommerce_currency()) && 'yes' === $this->get_option('stripe_bitcoin');
+		$this->apple_pay              = 'yes' === $this->get_option('apple_pay', 'yes');
+		$this->apple_pay_domain_set   = 'yes' === $this->get_option('apple_pay_domain_set', 'no');
+		$this->apple_pay_button       = $this->get_option('apple_pay_button', 'black');
+		$this->logging                = 'yes' === $this->get_option('logging');
+
+		if ($this->stripe_checkout) {
+			$this->order_button_text = __('Continue to payment', 'woocommerce-gateway-stripe');
+		}
+
+		if ($this->testmode) {
+			$this->description .= ' ' . sprintf(__('TEST MODE ENABLED. In test mode, you can use the card number 4242424242424242 with any CVC and a valid expiration date or check the documentation "<a href="%s">Testing Stripe</a>" for more card numbers.', 'woocommerce-gateway-stripe'), 'https://stripe.com/docs/testing');
+			$this->description  = trim($this->description);
+		}
+
+		WC_Stripe_API::set_secret_key($this->secret_key);
 
 		$this->init_apple_pay();
 
 		// Hooks.
-		add_action( 'wp_enqueue_scripts', array( $this, 'payment_scripts' ) );
-		add_action( 'admin_enqueue_scripts', array( $this, 'admin_scripts' ) );
-		add_action( 'admin_notices', array( $this, 'admin_notices' ) );
-		add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
+		add_action('wp_enqueue_scripts', array($this, 'payment_scripts'));
+		add_action('admin_enqueue_scripts', array($this, 'admin_scripts'));
+		add_action('admin_notices', array($this, 'admin_notices'));
+		add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this, 'process_admin_options'));
 	}
 
 	/**
@@ -187,24 +187,24 @@ 
 	 * @return string
 	 */
 	public function get_icon() {
-		$ext   = version_compare( WC()->version, '2.6', '>=' ) ? '.svg' : '.png';
-		$style = version_compare( WC()->version, '2.6', '>=' ) ? 'style="margin-left: 0.3em"' : '';
+		$ext   = version_compare(WC()->version, '2.6', '>=') ? '.svg' : '.png';
+		$style = version_compare(WC()->version, '2.6', '>=') ? 'style="margin-left: 0.3em"' : '';
 
-		$icon  = '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/visa' . $ext ) . '" alt="Visa" width="32" ' . $style . ' />';
-		$icon .= '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/mastercard' . $ext ) . '" alt="Mastercard" width="32" ' . $style . ' />';
-		$icon .= '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/amex' . $ext ) . '" alt="Amex" width="32" ' . $style . ' />';
+		$icon  = '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/visa' . $ext) . '" alt="Visa" width="32" ' . $style . ' />';
+		$icon .= '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/mastercard' . $ext) . '" alt="Mastercard" width="32" ' . $style . ' />';
+		$icon .= '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/amex' . $ext) . '" alt="Amex" width="32" ' . $style . ' />';
 
-		if ( 'USD' === get_woocommerce_currency() ) {
-			$icon .= '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/discover' . $ext ) . '" alt="Discover" width="32" ' . $style . ' />';
-			$icon .= '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/jcb' . $ext ) . '" alt="JCB" width="32" ' . $style . ' />';
-			$icon .= '<img src="' . WC_HTTPS::force_https_url( WC()->plugin_url() . '/assets/images/icons/credit-cards/diners' . $ext ) . '" alt="Diners" width="32" ' . $style . ' />';
+		if ('USD' === get_woocommerce_currency()) {
+			$icon .= '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/discover' . $ext) . '" alt="Discover" width="32" ' . $style . ' />';
+			$icon .= '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/jcb' . $ext) . '" alt="JCB" width="32" ' . $style . ' />';
+			$icon .= '<img src="' . WC_HTTPS::force_https_url(WC()->plugin_url() . '/assets/images/icons/credit-cards/diners' . $ext) . '" alt="Diners" width="32" ' . $style . ' />';
 		}
 
-		if ( $this->bitcoin && $this->stripe_checkout ) {
-			$icon .= '<img src="' . WC_HTTPS::force_https_url( plugins_url( '/assets/images/bitcoin' . $ext, WC_STRIPE_MAIN_FILE ) ) . '" alt="Bitcoin" width="24" ' . $style . ' />';
+		if ($this->bitcoin && $this->stripe_checkout) {
+			$icon .= '<img src="' . WC_HTTPS::force_https_url(plugins_url('/assets/images/bitcoin' . $ext, WC_STRIPE_MAIN_FILE)) . '" alt="Bitcoin" width="24" ' . $style . ' />';
 		}
 
-		return apply_filters( 'woocommerce_gateway_icon', $icon, $this->id );
+		return apply_filters('woocommerce_gateway_icon', $icon, $this->id);
 	}
 
 	/**
@@ -215,11 +215,11 @@ 
 	 *
 	 * @return float|int
 	 */
-	public function get_stripe_amount( $total, $currency = '' ) {
-		if ( ! $currency ) {
+	public function get_stripe_amount($total, $currency = '') {
+		if ( ! $currency) {
 			$currency = get_woocommerce_currency();
 		}
-		switch ( strtoupper( $currency ) ) {
+		switch (strtoupper($currency)) {
 			// Zero decimal currencies.
 			case 'BIF' :
 			case 'CLP' :
@@ -236,10 +236,10 @@ 
 			case 'XAF' :
 			case 'XOF' :
 			case 'XPF' :
-				$total = absint( $total );
+				$total = absint($total);
 				break;
 			default :
-				$total = round( $total, 2 ) * 100; // In cents.
+				$total = round($total, 2) * 100; // In cents.
 				break;
 		}
 		return $total;
@@ -254,9 +254,9 @@ 
 	public function init_apple_pay() {
 		if ( 
 			is_admin() && 
-			isset( $_GET['page'] ) && 'wc-settings' === $_GET['page'] && 
-			isset( $_GET['tab'] ) && 'checkout' === $_GET['tab'] &&
-			isset( $_GET['section'] ) && 'stripe' === $_GET['section']
+			isset($_GET['page']) && 'wc-settings' === $_GET['page'] && 
+			isset($_GET['tab']) && 'checkout' === $_GET['tab'] &&
+			isset($_GET['section']) && 'stripe' === $_GET['section']
 		) {
 			$this->process_apple_pay_verification();
 		}
@@ -269,9 +269,9 @@ 
 	 * @version 3.1.0
 	 * @param string $secret_key
 	 */
-	private function _register_apple_pay_domain( $secret_key = '' ) {
-		if ( empty( $secret_key ) ) {
-			throw new Exception( __( 'Unable to verify domain - missing secret key.', 'woocommerce-gateway-stripe' ) );
+	private function _register_apple_pay_domain($secret_key = '') {
+		if (empty($secret_key)) {
+			throw new Exception(__('Unable to verify domain - missing secret key.', 'woocommerce-gateway-stripe'));
 		}
 
 		$endpoint = 'https://api.stripe.com/v1/apple_pay/domains';
@@ -285,13 +285,13 @@ 
 			'Authorization' => 'Bearer ' . $secret_key,
 		);
 
-		$response = wp_remote_post( $endpoint, array(
+		$response = wp_remote_post($endpoint, array(
 			'headers' => $headers,
-			'body'    => http_build_query( $data ),
-		) );
+			'body'    => http_build_query($data),
+		));
 
-		if ( 200 !== $response['response']['code'] ) {
-			throw new Exception( sprintf( __( 'Unable to verify domain - %s', 'woocommerce-gateway-stripe' ), $response['response']['message'] ) );
+		if (200 !== $response['response']['code']) {
+			throw new Exception(sprintf(__('Unable to verify domain - %s', 'woocommerce-gateway-stripe'), $response['response']['message']));
 		}
 	}
 
@@ -302,48 +302,48 @@ 
 	 * @version 3.1.0
 	 */
 	public function process_apple_pay_verification() {
-		$gateway_settings = get_option( 'woocommerce_stripe_settings', '' );
+		$gateway_settings = get_option('woocommerce_stripe_settings', '');
 
 		try {
-			$path     = untrailingslashit( preg_replace( "!${_SERVER['SCRIPT_NAME']}$!", '', $_SERVER['SCRIPT_FILENAME'] ) );
+			$path     = untrailingslashit(preg_replace("!${_SERVER['SCRIPT_NAME']}$!", '', $_SERVER['SCRIPT_FILENAME']));
 			$dir      = '.well-known';
 			$file     = 'apple-developer-merchantid-domain-association';
 			$fullpath = $path . '/' . $dir . '/' . $file;
 
-			if ( ! empty( $gateway_settings['apple_pay_domain_set'] ) && 'yes' === $gateway_settings['apple_pay_domain_set'] && file_exists( $fullpath ) ) {
+			if ( ! empty($gateway_settings['apple_pay_domain_set']) && 'yes' === $gateway_settings['apple_pay_domain_set'] && file_exists($fullpath)) {
 				return;
 			}
 
-			if ( ! file_exists( $path . '/' . $dir ) ) {
-				if ( ! @mkdir( $path . '/' . $dir, 0755 ) ) {
-					throw new Exception( __( 'Unable to create domain association folder to domain root.', 'woocommerce-gateway-stripe' ) );
+			if ( ! file_exists($path . '/' . $dir)) {
+				if ( ! @mkdir($path . '/' . $dir, 0755)) {
+					throw new Exception(__('Unable to create domain association folder to domain root.', 'woocommerce-gateway-stripe'));
 				}
 			}
 
-			if ( ! file_exists( $fullpath ) ) {
-				if ( ! @copy( WC_STRIPE_PLUGIN_PATH . '/' . $file, $fullpath ) ) {
-					throw new Exception( __( 'Unable to copy domain association file to domain root.', 'woocommerce-gateway-stripe' ) );
+			if ( ! file_exists($fullpath)) {
+				if ( ! @copy(WC_STRIPE_PLUGIN_PATH . '/' . $file, $fullpath)) {
+					throw new Exception(__('Unable to copy domain association file to domain root.', 'woocommerce-gateway-stripe'));
 				}
 			}
 
 			// At this point then the domain association folder and file should be available.
 			// Proceed to verify/and or verify again.
-			$this->_register_apple_pay_domain( $this->secret_key );
+			$this->_register_apple_pay_domain($this->secret_key);
 
 			// No errors to this point, verification success!
 			$gateway_settings['apple_pay_domain_set'] = 'yes';
 			$this->apple_pay_domain_set = true;
 
-			update_option( 'woocommerce_stripe_settings', $gateway_settings );
+			update_option('woocommerce_stripe_settings', $gateway_settings);
 
-			$this->log( __( 'Your domain has been verified with Apple Pay!', 'woocommerce-gateway-stripe' ) );
+			$this->log(__('Your domain has been verified with Apple Pay!', 'woocommerce-gateway-stripe'));
 
-		} catch ( Exception $e ) {
+		} catch (Exception $e) {
 			$gateway_settings['apple_pay_domain_set'] = 'no';
 
-			update_option( 'woocommerce_stripe_settings', $gateway_settings );
+			update_option('woocommerce_stripe_settings', $gateway_settings);
 
-			$this->log( sprintf( __( 'Error: %s', 'woocommerce-gateway-stripe' ), $e->getMessage() ) );
+			$this->log(sprintf(__('Error: %s', 'woocommerce-gateway-stripe'), $e->getMessage()));
 		}
 	}
 
@@ -351,7 +351,7 @@ 
 	 * Check if SSL is enabled and notify the user
 	 */
 	public function admin_notices() {
-		if ( 'no' === $this->enabled ) {
+		if ('no' === $this->enabled) {
 			return;
 		}
 
@@ -360,13 +360,13 @@ 
 		 * when setting screen is displayed. So if domain verification is not set,
 		 * something went wrong so lets notify user.
 		 */
-		if ( ! empty( $this->secret_key ) && $this->apple_pay && ! $this->apple_pay_domain_set ) {
-			echo '<div class="error stripe-apple-pay-message"><p>' . sprintf( __( 'Apple Pay domain verification failed. Please check the %1$slog%2$s to see the issue.', 'woocommerce-gateway-stripe' ), '<a href="' . admin_url( 'admin.php?page=wc-status&tab=logs' ) . '">', '</a>' ) . '</p></div>';
+		if ( ! empty($this->secret_key) && $this->apple_pay && ! $this->apple_pay_domain_set) {
+			echo '<div class="error stripe-apple-pay-message"><p>' . sprintf(__('Apple Pay domain verification failed. Please check the %1$slog%2$s to see the issue.', 'woocommerce-gateway-stripe'), '<a href="' . admin_url('admin.php?page=wc-status&tab=logs') . '">', '</a>') . '</p></div>';
 		}
 
 		// Show message if enabled and FORCE SSL is disabled and WordpressHTTPS plugin is not detected.
-		if ( ( function_exists( 'wc_site_is_https' ) && ! wc_site_is_https() ) && ( 'no' === get_option( 'woocommerce_force_ssl_checkout' ) && ! class_exists( 'WordPressHTTPS' ) ) ) {
-			echo '<div class="error stripe-ssl-message"><p>' . sprintf( __( 'Stripe is enabled, but the <a href="%s">force SSL option</a> is disabled; your checkout may not be secure! Please enable SSL and ensure your server has a valid SSL certificate - Stripe will only work in test mode.', 'woocommerce-gateway-stripe' ), admin_url( 'admin.php?page=wc-settings&tab=checkout' ) ) . '</p></div>';
+		if ((function_exists('wc_site_is_https') && ! wc_site_is_https()) && ('no' === get_option('woocommerce_force_ssl_checkout') && ! class_exists('WordPressHTTPS'))) {
+			echo '<div class="error stripe-ssl-message"><p>' . sprintf(__('Stripe is enabled, but the <a href="%s">force SSL option</a> is disabled; your checkout may not be secure! Please enable SSL and ensure your server has a valid SSL certificate - Stripe will only work in test mode.', 'woocommerce-gateway-stripe'), admin_url('admin.php?page=wc-settings&tab=checkout')) . '</p></div>';
 		}
 	}
 
@@ -374,11 +374,11 @@ 
 	 * Check if this gateway is enabled
 	 */
 	public function is_available() {
-		if ( 'yes' === $this->enabled ) {
-			if ( ! $this->testmode && is_checkout() && ! is_ssl() ) {
+		if ('yes' === $this->enabled) {
+			if ( ! $this->testmode && is_checkout() && ! is_ssl()) {
 				return false;
 			}
-			if ( ! $this->secret_key || ! $this->publishable_key ) {
+			if ( ! $this->secret_key || ! $this->publishable_key) {
 				return false;
 			}
 			return true;
@@ -390,7 +390,7 @@ 
 	 * Initialise Gateway Settings Form Fields
 	 */
 	public function init_form_fields() {
-		$this->form_fields = include( 'settings-stripe.php' );
+		$this->form_fields = include('settings-stripe.php');
 	}
 
 	/**
@@ -398,54 +398,54 @@ 
 	 */
 	public function payment_fields() {
 		$user                 = wp_get_current_user();
-		$display_tokenization = $this->supports( 'tokenization' ) && is_checkout() && $this->saved_cards;
+		$display_tokenization = $this->supports('tokenization') && is_checkout() && $this->saved_cards;
 		$total                = WC()->cart->total;
 
 		// If paying from order, we need to get total from order not cart.
-		if ( isset( $_GET['pay_for_order'] ) && ! empty( $_GET['key'] ) ) {
-			$order = wc_get_order( wc_get_order_id_by_order_key( wc_clean( $_GET['key'] ) ) );
+		if (isset($_GET['pay_for_order']) && ! empty($_GET['key'])) {
+			$order = wc_get_order(wc_get_order_id_by_order_key(wc_clean($_GET['key'])));
 			$total = $order->get_total();
 		}
 
-		if ( $user->ID ) {
-			$user_email = get_user_meta( $user->ID, 'billing_email', true );
+		if ($user->ID) {
+			$user_email = get_user_meta($user->ID, 'billing_email', true);
 			$user_email = $user_email ? $user_email : $user->user_email;
 		} else {
 			$user_email = '';
 		}
 
-		if ( is_add_payment_method_page() ) {
-			$pay_button_text = __( 'Add Card', 'woocommerce-gateway-stripe' );
+		if (is_add_payment_method_page()) {
+			$pay_button_text = __('Add Card', 'woocommerce-gateway-stripe');
 		} else {
 			$pay_button_text = '';
 		}
 
 		echo '<div
 			id="stripe-payment-data"
-			data-panel-label="' . esc_attr( $pay_button_text ) . '"
+			data-panel-label="' . esc_attr($pay_button_text) . '"
 			data-description=""
-			data-email="' . esc_attr( $user_email ) . '"
-			data-amount="' . esc_attr( $this->get_stripe_amount( $total ) ) . '"
-			data-name="' . esc_attr( $this->statement_descriptor ) . '"
-			data-currency="' . esc_attr( strtolower( get_woocommerce_currency() ) ) . '"
-			data-image="' . esc_attr( $this->stripe_checkout_image ) . '"
-			data-bitcoin="' . esc_attr( $this->bitcoin ? 'true' : 'false' ) . '"
-			data-locale="' . esc_attr( $this->stripe_checkout_locale ? $this->stripe_checkout_locale : 'en' ) . '"
-			data-allow-remember-me="' . esc_attr( $this->saved_cards ? 'true' : 'false' ) . '">';
+			data-email="' . esc_attr($user_email) . '"
+			data-amount="' . esc_attr($this->get_stripe_amount($total)) . '"
+			data-name="' . esc_attr($this->statement_descriptor) . '"
+			data-currency="' . esc_attr(strtolower(get_woocommerce_currency())) . '"
+			data-image="' . esc_attr($this->stripe_checkout_image) . '"
+			data-bitcoin="' . esc_attr($this->bitcoin ? 'true' : 'false') . '"
+			data-locale="' . esc_attr($this->stripe_checkout_locale ? $this->stripe_checkout_locale : 'en') . '"
+			data-allow-remember-me="' . esc_attr($this->saved_cards ? 'true' : 'false') . '">';
 
-		if ( $this->description ) {
-			echo apply_filters( 'wc_stripe_description', wpautop( wp_kses_post( $this->description ) ) );
+		if ($this->description) {
+			echo apply_filters('wc_stripe_description', wpautop(wp_kses_post($this->description)));
 		}
 
-		if ( $display_tokenization ) {
+		if ($display_tokenization) {
 			$this->tokenization_script();
 			$this->saved_payment_methods();
 		}
 
-		if ( ! $this->stripe_checkout ) {
+		if ( ! $this->stripe_checkout) {
 			$this->form();
 
-			if ( $display_tokenization ) {
+			if ($display_tokenization) {
 				$this->save_payment_method_checkbox();
 			}
 		}
@@ -461,20 +461,20 @@ 
 	 * @return array
 	 */
 	public function get_localized_messages() {
-		return apply_filters( 'wc_stripe_localized_messages', array(
-			'invalid_number'        => __( 'The card number is not a valid credit card number.', 'woocommerce-gateway-stripe' ),
-			'invalid_expiry_month'  => __( 'The card\'s expiration month is invalid.', 'woocommerce-gateway-stripe' ),
-			'invalid_expiry_year'   => __( 'The card\'s expiration year is invalid.', 'woocommerce-gateway-stripe' ),
-			'invalid_cvc'           => __( 'The card\'s security code is invalid.', 'woocommerce-gateway-stripe' ),
-			'incorrect_number'      => __( 'The card number is incorrect.', 'woocommerce-gateway-stripe' ),
-			'expired_card'          => __( 'The card has expired.', 'woocommerce-gateway-stripe' ),
-			'incorrect_cvc'         => __( 'The card\'s security code is incorrect.', 'woocommerce-gateway-stripe' ),
-			'incorrect_zip'         => __( 'The card\'s zip code failed validation.', 'woocommerce-gateway-stripe' ),
-			'card_declined'         => __( 'The card was declined.', 'woocommerce-gateway-stripe' ),
-			'missing'               => __( 'There is no card on a customer that is being charged.', 'woocommerce-gateway-stripe' ),
-			'processing_error'      => __( 'An error occurred while processing the card.', 'woocommerce-gateway-stripe' ),
-			'invalid_request_error' => __( 'Could not find payment information.', 'woocommerce-gateway-stripe' ),
-		) );
+		return apply_filters('wc_stripe_localized_messages', array(
+			'invalid_number'        => __('The card number is not a valid credit card number.', 'woocommerce-gateway-stripe'),
+			'invalid_expiry_month'  => __('The card\'s expiration month is invalid.', 'woocommerce-gateway-stripe'),
+			'invalid_expiry_year'   => __('The card\'s expiration year is invalid.', 'woocommerce-gateway-stripe'),
+			'invalid_cvc'           => __('The card\'s security code is invalid.', 'woocommerce-gateway-stripe'),
+			'incorrect_number'      => __('The card number is incorrect.', 'woocommerce-gateway-stripe'),
+			'expired_card'          => __('The card has expired.', 'woocommerce-gateway-stripe'),
+			'incorrect_cvc'         => __('The card\'s security code is incorrect.', 'woocommerce-gateway-stripe'),
+			'incorrect_zip'         => __('The card\'s zip code failed validation.', 'woocommerce-gateway-stripe'),
+			'card_declined'         => __('The card was declined.', 'woocommerce-gateway-stripe'),
+			'missing'               => __('There is no card on a customer that is being charged.', 'woocommerce-gateway-stripe'),
+			'processing_error'      => __('An error occurred while processing the card.', 'woocommerce-gateway-stripe'),
+			'invalid_request_error' => __('Could not find payment information.', 'woocommerce-gateway-stripe'),
+		));
 	}
 
 	/**
@@ -484,28 +484,28 @@ 
 	 * @version 3.1.0
 	 */
 	public function admin_scripts() {
-		if ( 'woocommerce_page_wc-settings' !== get_current_screen()->id ) {
+		if ('woocommerce_page_wc-settings' !== get_current_screen()->id) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_enqueue_script( 'woocommerce_stripe_admin', plugins_url( 'assets/js/stripe-admin' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION, true );
+		wp_enqueue_script('woocommerce_stripe_admin', plugins_url('assets/js/stripe-admin' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION, true);
 
 		$stripe_admin_params = array(
 			'localized_messages' => array(
-				'not_valid_live_key_msg' => __( 'This is not a valid live key. Live keys start with "sk_live_" and "pk_live_".', 'woocommerce-gateway-stripe' ),
-				'not_valid_test_key_msg' => __( 'This is not a valid test key. Test keys start with "sk_test_" and "pk_test_".', 'woocommerce-gateway-stripe' ),
-				're_verify_button_text'  => __( 'Re-verify Domain', 'woocommerce-gateway-stripe' ),
-				'missing_secret_key'     => __( 'Missing Secret Key. Please set the secret key field above and re-try.', 'woocommerce-gateway-stripe' ),
+				'not_valid_live_key_msg' => __('This is not a valid live key. Live keys start with "sk_live_" and "pk_live_".', 'woocommerce-gateway-stripe'),
+				'not_valid_test_key_msg' => __('This is not a valid test key. Test keys start with "sk_test_" and "pk_test_".', 'woocommerce-gateway-stripe'),
+				're_verify_button_text'  => __('Re-verify Domain', 'woocommerce-gateway-stripe'),
+				'missing_secret_key'     => __('Missing Secret Key. Please set the secret key field above and re-try.', 'woocommerce-gateway-stripe'),
 			),
-			'ajaxurl'            => admin_url( 'admin-ajax.php' ),
+			'ajaxurl'            => admin_url('admin-ajax.php'),
 			'nonce'              => array( 
-				'apple_pay_domain_nonce' => wp_create_nonce( '_wc_stripe_apple_pay_domain_nonce' ),
+				'apple_pay_domain_nonce' => wp_create_nonce('_wc_stripe_apple_pay_domain_nonce'),
 			),
 		);
 
-		wp_localize_script( 'woocommerce_stripe_admin', 'wc_stripe_admin_params', apply_filters( 'wc_stripe_admin_params', $stripe_admin_params ) );
+		wp_localize_script('woocommerce_stripe_admin', 'wc_stripe_admin_params', apply_filters('wc_stripe_admin_params', $stripe_admin_params));
 	}
 
 	/**
@@ -516,49 +516,49 @@ 
 	 * @access public
 	 */
 	public function payment_scripts() {
-		if ( ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) && ! is_add_payment_method_page() ) {
+		if ( ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order']) && ! is_add_payment_method_page()) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		if ( $this->stripe_checkout ) {
-			wp_enqueue_script( 'stripe_checkout', 'https://checkout.stripe.com/v2/checkout.js', '', '2.0', true );
-			wp_enqueue_script( 'woocommerce_stripe', plugins_url( 'assets/js/stripe-checkout' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'stripe_checkout' ), WC_STRIPE_VERSION, true );
+		if ($this->stripe_checkout) {
+			wp_enqueue_script('stripe_checkout', 'https://checkout.stripe.com/v2/checkout.js', '', '2.0', true);
+			wp_enqueue_script('woocommerce_stripe', plugins_url('assets/js/stripe-checkout' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('stripe_checkout'), WC_STRIPE_VERSION, true);
 		} else {
-			wp_enqueue_script( 'stripe', 'https://js.stripe.com/v2/', '', '1.0', true );
-			wp_enqueue_script( 'woocommerce_stripe', plugins_url( 'assets/js/stripe' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery-payment', 'stripe' ), WC_STRIPE_VERSION, true );
+			wp_enqueue_script('stripe', 'https://js.stripe.com/v2/', '', '1.0', true);
+			wp_enqueue_script('woocommerce_stripe', plugins_url('assets/js/stripe' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery-payment', 'stripe'), WC_STRIPE_VERSION, true);
 		}
 
 		$stripe_params = array(
 			'key'                  => $this->publishable_key,
-			'i18n_terms'           => __( 'Please accept the terms and conditions first', 'woocommerce-gateway-stripe' ),
-			'i18n_required_fields' => __( 'Please fill in required checkout fields first', 'woocommerce-gateway-stripe' ),
+			'i18n_terms'           => __('Please accept the terms and conditions first', 'woocommerce-gateway-stripe'),
+			'i18n_required_fields' => __('Please fill in required checkout fields first', 'woocommerce-gateway-stripe'),
 		);
 
 		// If we're on the pay page we need to pass stripe.js the address of the order.
-		if ( isset( $_GET['pay_for_order'] ) && 'true' === $_GET['pay_for_order'] ) {
-			$order_id = wc_get_order_id_by_order_key( urldecode( $_GET['key'] ) );
-			$order    = wc_get_order( $order_id );
+		if (isset($_GET['pay_for_order']) && 'true' === $_GET['pay_for_order']) {
+			$order_id = wc_get_order_id_by_order_key(urldecode($_GET['key']));
+			$order    = wc_get_order($order_id);
 
-			$stripe_params['billing_first_name'] = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_first_name : $order->get_billing_first_name();
-			$stripe_params['billing_last_name']  = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_last_name : $order->get_billing_last_name();
-			$stripe_params['billing_address_1']  = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_address_1 : $order->get_billing_address_1();
-			$stripe_params['billing_address_2']  = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_address_2 : $order->get_billing_address_2();
-			$stripe_params['billing_state']      = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_state : $order->get_billing_state();
-			$stripe_params['billing_city']       = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_city : $order->get_billing_city();
-			$stripe_params['billing_postcode']   = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_postcode : $order->get_billing_postcode();
-			$stripe_params['billing_country']    = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_country : $order->get_billing_country();
+			$stripe_params['billing_first_name'] = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_first_name : $order->get_billing_first_name();
+			$stripe_params['billing_last_name']  = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_last_name : $order->get_billing_last_name();
+			$stripe_params['billing_address_1']  = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_address_1 : $order->get_billing_address_1();
+			$stripe_params['billing_address_2']  = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_address_2 : $order->get_billing_address_2();
+			$stripe_params['billing_state']      = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_state : $order->get_billing_state();
+			$stripe_params['billing_city']       = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_city : $order->get_billing_city();
+			$stripe_params['billing_postcode']   = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_postcode : $order->get_billing_postcode();
+			$stripe_params['billing_country']    = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_country : $order->get_billing_country();
 		}
 
-		$stripe_params['no_prepaid_card_msg']                     = __( 'Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe' );
-		$stripe_params['allow_prepaid_card']                      = apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no';
-		$stripe_params['stripe_checkout_require_billing_address'] = apply_filters( 'wc_stripe_checkout_require_billing_address', false ) ? 'yes' : 'no';
+		$stripe_params['no_prepaid_card_msg']                     = __('Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe');
+		$stripe_params['allow_prepaid_card']                      = apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no';
+		$stripe_params['stripe_checkout_require_billing_address'] = apply_filters('wc_stripe_checkout_require_billing_address', false) ? 'yes' : 'no';
 
 		// merge localized messages to be use in JS
-		$stripe_params = array_merge( $stripe_params, $this->get_localized_messages() );
+		$stripe_params = array_merge($stripe_params, $this->get_localized_messages());
 
-		wp_localize_script( 'woocommerce_stripe', 'wc_stripe_params', apply_filters( 'wc_stripe_params', $stripe_params ) );
+		wp_localize_script('woocommerce_stripe', 'wc_stripe_params', apply_filters('wc_stripe_params', $stripe_params));
 	}
 
 	/**
@@ -567,35 +567,35 @@ 
 	 * @param  object $source
 	 * @return array()
 	 */
-	protected function generate_payment_request( $order, $source ) {
+	protected function generate_payment_request($order, $source) {
 		$post_data                = array();
-		$post_data['currency']    = strtolower( version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->get_order_currency() : $order->get_currency() );
-		$post_data['amount']      = $this->get_stripe_amount( $order->get_total(), $post_data['currency'] );
-		$post_data['description'] = sprintf( __( '%1$s - Order %2$s', 'woocommerce-gateway-stripe' ), $this->statement_descriptor, $order->get_order_number() );
+		$post_data['currency']    = strtolower(version_compare(WC_VERSION, '3.0.0', '<') ? $order->get_order_currency() : $order->get_currency());
+		$post_data['amount']      = $this->get_stripe_amount($order->get_total(), $post_data['currency']);
+		$post_data['description'] = sprintf(__('%1$s - Order %2$s', 'woocommerce-gateway-stripe'), $this->statement_descriptor, $order->get_order_number());
 		$post_data['capture']     = $this->capture ? 'true' : 'false';
 
-		$billing_email      = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_email : $order->get_billing_email();
-		$billing_first_name = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_first_name : $order->get_billing_first_name();
-		$billing_last_name  = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_last_name : $order->get_billing_last_name();
+		$billing_email      = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_email : $order->get_billing_email();
+		$billing_first_name = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_first_name : $order->get_billing_first_name();
+		$billing_last_name  = version_compare(WC_VERSION, '3.0.0', '<') ? $order->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;
 		}
 
-		$post_data['expand[]']    = 'balance_transaction';
+		$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),
 		);
 
-		$post_data['metadata'] = apply_filters( 'wc_stripe_payment_metadata', $metadata, $order, $source );
+		$post_data['metadata'] = apply_filters('wc_stripe_payment_metadata', $metadata, $order, $source);
 
-		if ( $source->customer ) {
+		if ($source->customer) {
 			$post_data['customer'] = $source->customer;
 		}
 
-		if ( $source->source ) {
+		if ($source->source) {
 			$post_data['source'] = $source->source;
 		}
 
@@ -607,7 +607,7 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_payment_request', $post_data, $order, $source );
+		return apply_filters('wc_stripe_generate_payment_request', $post_data, $order, $source);
 	}
 
 	/**
@@ -619,37 +619,37 @@ 
 	 * @throws Exception When card was not added or for and invalid card.
 	 * @return object
 	 */
-	protected function get_source( $user_id, $force_customer = false ) {
-		$stripe_customer = new WC_Stripe_Customer( $user_id );
+	protected function get_source($user_id, $force_customer = false) {
+		$stripe_customer = new WC_Stripe_Customer($user_id);
 		$stripe_source   = false;
 		$token_id        = false;
 
 		// New CC info was entered and we have a new token to process
-		if ( isset( $_POST['stripe_token'] ) ) {
-			$stripe_token     = wc_clean( $_POST['stripe_token'] );
-			$maybe_saved_card = isset( $_POST['wc-stripe-new-payment-method'] ) && ! empty( $_POST['wc-stripe-new-payment-method'] );
+		if (isset($_POST['stripe_token'])) {
+			$stripe_token     = wc_clean($_POST['stripe_token']);
+			$maybe_saved_card = isset($_POST['wc-stripe-new-payment-method']) && ! empty($_POST['wc-stripe-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_customer ) {
-				$stripe_source = $stripe_customer->add_card( $stripe_token );
+			if (($user_id && $this->saved_cards && $maybe_saved_card) || $force_customer) {
+				$stripe_source = $stripe_customer->add_card($stripe_token);
 
-				if ( is_wp_error( $stripe_source ) ) {
-					throw new Exception( $stripe_source->get_error_message() );
+				if (is_wp_error($stripe_source)) {
+					throw new Exception($stripe_source->get_error_message());
 				}
 			} else {
 				// Not saving token, so don't define customer either.
 				$stripe_source   = $stripe_token;
 				$stripe_customer = false;
 			}
-		} elseif ( isset( $_POST['wc-stripe-payment-token'] ) && 'new' !== $_POST['wc-stripe-payment-token'] ) {
+		} elseif (isset($_POST['wc-stripe-payment-token']) && 'new' !== $_POST['wc-stripe-payment-token']) {
 			// Use an existing token, and then process the payment
 
-			$token_id = wc_clean( $_POST['wc-stripe-payment-token'] );
-			$token    = WC_Payment_Tokens::get( $token_id );
+			$token_id = wc_clean($_POST['wc-stripe-payment-token']);
+			$token    = WC_Payment_Tokens::get($token_id);
 
-			if ( ! $token || $token->get_user_id() !== get_current_user_id() ) {
-				WC()->session->set( 'refresh_totals', true );
-				throw new Exception( __( 'Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe' ) );
+			if ( ! $token || $token->get_user_id() !== get_current_user_id()) {
+				WC()->session->set('refresh_totals', true);
+				throw new Exception(__('Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe'));
 			}
 
 			$stripe_source = $token->get_token();
@@ -673,19 +673,19 @@ 
 	 * @param object $order
 	 * @return object
 	 */
-	protected function get_order_source( $order = null ) {
+	protected function get_order_source($order = null) {
 		$stripe_customer = new WC_Stripe_Customer();
 		$stripe_source   = false;
 		$token_id        = false;
 
-		if ( $order ) {
-			$order_id = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->id : $order->get_id();
+		if ($order) {
+			$order_id = version_compare(WC_VERSION, '3.0.0', '<') ? $order->id : $order->get_id();
 
-			if ( $meta_value = get_post_meta( $order_id, '_stripe_customer_id', true ) ) {
-				$stripe_customer->set_id( $meta_value );
+			if ($meta_value = get_post_meta($order_id, '_stripe_customer_id', true)) {
+				$stripe_customer->set_id($meta_value);
 			}
 
-			if ( $meta_value = get_post_meta( $order_id, '_stripe_card_id', true ) ) {
+			if ($meta_value = get_post_meta($order_id, '_stripe_card_id', true)) {
 				$stripe_source = $meta_value;
 			}
 		}
@@ -708,57 +708,57 @@ 
 	 *
 	 * @return array|void
 	 */
-	public function process_payment( $order_id, $retry = true, $force_customer = false ) {
+	public function process_payment($order_id, $retry = true, $force_customer = false) {
 		try {
-			$order  = wc_get_order( $order_id );
-			$source = $this->get_source( get_current_user_id(), $force_customer );
+			$order  = wc_get_order($order_id);
+			$source = $this->get_source(get_current_user_id(), $force_customer);
 
-			if ( empty( $source->source ) && empty( $source->customer ) ) {
-				$error_msg = __( 'Please enter your card details to make a payment.', 'woocommerce-gateway-stripe' );
-				$error_msg .= ' ' . __( 'Developers: Please make sure that you are including jQuery and there are no JavaScript errors on the page.', 'woocommerce-gateway-stripe' );
-				throw new Exception( $error_msg );
+			if (empty($source->source) && empty($source->customer)) {
+				$error_msg = __('Please enter your card details to make a payment.', 'woocommerce-gateway-stripe');
+				$error_msg .= ' ' . __('Developers: Please make sure that you are including jQuery and there are no JavaScript errors on the page.', 'woocommerce-gateway-stripe');
+				throw new Exception($error_msg);
 			}
 
 			// Store source to order meta.
-			$this->save_source( $order, $source );
+			$this->save_source($order, $source);
 
 			// Handle payment.
-			if ( $order->get_total() > 0 ) {
+			if ($order->get_total() > 0) {
 
-				if ( $order->get_total() * 100 < WC_Stripe::get_minimum_amount() ) {
-					throw new Exception( sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe::get_minimum_amount() / 100 ) ) );
+				if ($order->get_total() * 100 < WC_Stripe::get_minimum_amount()) {
+					throw new Exception(sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe::get_minimum_amount() / 100)));
 				}
 
-				$this->log( "Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}" );
+				$this->log("Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}");
 
 				// Make the request.
-				$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $source ) );
+				$response = WC_Stripe_API::request($this->generate_payment_request($order, $source));
 
-				if ( is_wp_error( $response ) ) {
+				if (is_wp_error($response)) {
 					// Customer param wrong? The user may have been deleted on stripe's end. Remove customer_id. Can be retried without.
-					if ( 'customer' === $response->get_error_code() && $retry ) {
-						delete_user_meta( get_current_user_id(), '_stripe_customer_id' );
-						return $this->process_payment( $order_id, false, $force_customer );
+					if ('customer' === $response->get_error_code() && $retry) {
+						delete_user_meta(get_current_user_id(), '_stripe_customer_id');
+						return $this->process_payment($order_id, false, $force_customer);
 						// Source param wrong? The CARD may have been deleted on stripe's end. Remove token and show message.
-					} elseif ( 'source' === $response->get_error_code() && $source->token_id ) {
-						$token = WC_Payment_Tokens::get( $source->token_id );
+					} elseif ('source' === $response->get_error_code() && $source->token_id) {
+						$token = WC_Payment_Tokens::get($source->token_id);
 						$token->delete();
-						$message = __( 'This card is no longer available and has been removed.', 'woocommerce-gateway-stripe' );
-						$order->add_order_note( $message );
-						throw new Exception( $message );
+						$message = __('This card is no longer available and has been removed.', 'woocommerce-gateway-stripe');
+						$order->add_order_note($message);
+						throw new Exception($message);
 					}
 
 					$localized_messages = $this->get_localized_messages();
 
-					$message = isset( $localized_messages[ $response->get_error_code() ] ) ? $localized_messages[ $response->get_error_code() ] : $response->get_error_message();
+					$message = isset($localized_messages[$response->get_error_code()]) ? $localized_messages[$response->get_error_code()] : $response->get_error_message();
 
-					$order->add_order_note( $message );
+					$order->add_order_note($message);
 
-					throw new Exception( $message );
+					throw new Exception($message);
 				}
 
 				// Process valid response.
-				$this->process_response( $response, $order );
+				$this->process_response($response, $order);
 			} else {
 				$order->payment_complete();
 			}
@@ -766,23 +766,23 @@ 
 			// Remove cart.
 			WC()->cart->empty_cart();
 
-			do_action( 'wc_gateway_stripe_process_payment', $response, $order );
+			do_action('wc_gateway_stripe_process_payment', $response, $order);
 
 			// Return thank you page redirect.
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $order ),
+				'redirect' => $this->get_return_url($order),
 			);
 
-		} catch ( Exception $e ) {
-			wc_add_notice( $e->getMessage(), 'error' );
-			$this->log( sprintf( __( 'Error: %s', 'woocommerce-gateway-stripe' ), $e->getMessage() ) );
+		} catch (Exception $e) {
+			wc_add_notice($e->getMessage(), 'error');
+			$this->log(sprintf(__('Error: %s', 'woocommerce-gateway-stripe'), $e->getMessage()));
 
-			if ( $order->has_status( array( 'pending', 'failed' ) ) ) {
-				$this->send_failed_order_email( $order_id );
+			if ($order->has_status(array('pending', 'failed'))) {
+				$this->send_failed_order_email($order_id);
 			}
 
-			do_action( 'wc_gateway_stripe_process_payment_error', $e, $order );
+			do_action('wc_gateway_stripe_process_payment_error', $e, $order);
 
 			return array(
 				'result'   => 'fail',
@@ -797,56 +797,56 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $source Source information.
 	 */
-	protected function save_source( $order, $source ) {
-		$order_id = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->id : $order->get_id();
+	protected function save_source($order, $source) {
+		$order_id = version_compare(WC_VERSION, '3.0.0', '<') ? $order->id : $order->get_id();
 
 		// Store source in the order.
-		if ( $source->customer ) {
-			update_post_meta( $order_id, '_stripe_customer_id', $source->customer );
+		if ($source->customer) {
+			update_post_meta($order_id, '_stripe_customer_id', $source->customer);
 		}
-		if ( $source->source ) {
-			update_post_meta( $order_id, '_stripe_card_id', $source->source );
+		if ($source->source) {
+			update_post_meta($order_id, '_stripe_card_id', $source->source);
 		}
 	}
 
 	/**
 	 * Store extra meta data for an order from a Stripe Response.
 	 */
-	public function process_response( $response, $order ) {
-		$this->log( 'Processing response: ' . print_r( $response, true ) );
+	public function process_response($response, $order) {
+		$this->log('Processing response: ' . print_r($response, true));
 
-		$order_id = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->id : $order->get_id();
+		$order_id = version_compare(WC_VERSION, '3.0.0', '<') ? $order->id : $order->get_id();
 
 		// Store charge data
-		update_post_meta( $order_id, '_stripe_charge_id', $response->id );
-		update_post_meta( $order_id, '_stripe_charge_captured', $response->captured ? 'yes' : 'no' );
+		update_post_meta($order_id, '_stripe_charge_id', $response->id);
+		update_post_meta($order_id, '_stripe_charge_captured', $response->captured ? 'yes' : 'no');
 
 		// Store other data such as fees
-		if ( isset( $response->balance_transaction ) && isset( $response->balance_transaction->fee ) ) {
+		if (isset($response->balance_transaction) && isset($response->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 = ! empty( $response->balance_transaction->fee ) ? WC_Stripe::format_number( $response->balance_transaction, 'fee' ) : 0;
-			$net = ! empty( $response->balance_transaction->net ) ? WC_Stripe::format_number( $response->balance_transaction, 'net' ) : 0;
-			update_post_meta( $order_id, 'Stripe Fee', $fee );
-			update_post_meta( $order_id, 'Net Revenue From Stripe', $net );
+			$fee = ! empty($response->balance_transaction->fee) ? WC_Stripe::format_number($response->balance_transaction, 'fee') : 0;
+			$net = ! empty($response->balance_transaction->net) ? WC_Stripe::format_number($response->balance_transaction, 'net') : 0;
+			update_post_meta($order_id, 'Stripe Fee', $fee);
+			update_post_meta($order_id, 'Net Revenue From Stripe', $net);
 		}
 
-		if ( $response->captured ) {
-			$order->payment_complete( $response->id );
+		if ($response->captured) {
+			$order->payment_complete($response->id);
 
-			$message = sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $response->id );
-			$order->add_order_note( $message );
-			$this->log( 'Success: ' . $message );
+			$message = sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $response->id);
+			$order->add_order_note($message);
+			$this->log('Success: ' . $message);
 
 		} else {
-			add_post_meta( $order_id, '_transaction_id', $response->id, true );
+			add_post_meta($order_id, '_transaction_id', $response->id, true);
 
-			if ( $order->has_status( array( 'pending', 'failed' ) ) ) {
-				version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->reduce_order_stock() : wc_reduce_stock_levels( $order_id );
+			if ($order->has_status(array('pending', 'failed'))) {
+				version_compare(WC_VERSION, '3.0.0', '<') ? $order->reduce_order_stock() : wc_reduce_stock_levels($order_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 ) );
-			$this->log( "Successful auth: $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));
+			$this->log("Successful auth: $response->id");
 		}
 
 		return $response;
@@ -858,32 +858,32 @@ 
 	 * @since 3.0.0
 	 */
 	public function add_payment_method() {
-		if ( empty( $_POST['stripe_token'] ) || ! is_user_logged_in() ) {
-			wc_add_notice( __( 'There was a problem adding the card.', 'woocommerce-gateway-stripe' ), 'error' );
+		if (empty($_POST['stripe_token']) || ! is_user_logged_in()) {
+			wc_add_notice(__('There was a problem adding the card.', 'woocommerce-gateway-stripe'), 'error');
 			return;
 		}
 
-		$stripe_customer = new WC_Stripe_Customer( get_current_user_id() );
-		$card            = $stripe_customer->add_card( wc_clean( $_POST['stripe_token'] ) );
+		$stripe_customer = new WC_Stripe_Customer(get_current_user_id());
+		$card            = $stripe_customer->add_card(wc_clean($_POST['stripe_token']));
 
-		if ( is_wp_error( $card ) ) {
+		if (is_wp_error($card)) {
 			$localized_messages = $this->get_localized_messages();
-			$error_msg = __( 'There was a problem adding the card.', 'woocommerce-gateway-stripe' );
+			$error_msg = __('There was a problem adding the card.', 'woocommerce-gateway-stripe');
 
 			// loop through the errors to find matching localized message
-			foreach ( $card->errors as $error => $msg ) {
-				if ( isset( $localized_messages[ $error ] ) ) {
-					$error_msg = $localized_messages[ $error ];
+			foreach ($card->errors as $error => $msg) {
+				if (isset($localized_messages[$error])) {
+					$error_msg = $localized_messages[$error];
 				}
 			}
 
-			wc_add_notice( $error_msg, 'error' );
+			wc_add_notice($error_msg, 'error');
 			return;
 		}
 
 		return array(
 			'result'   => 'success',
-			'redirect' => wc_get_endpoint_url( 'payment-methods' ),
+			'redirect' => wc_get_endpoint_url('payment-methods'),
 		);
 	}
 
@@ -893,36 +893,36 @@ 
 	 * @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 || ! $order->get_transaction_id() ) {
+		if ( ! $order || ! $order->get_transaction_id()) {
 			return false;
 		}
 
 		$body = array();
 
-		if ( ! is_null( $amount ) ) {
-			$body['amount']	= $this->get_stripe_amount( $amount );
+		if ( ! is_null($amount)) {
+			$body['amount'] = $this->get_stripe_amount($amount);
 		}
 
-		if ( $reason ) {
+		if ($reason) {
 			$body['metadata'] = array(
 				'reason'	=> $reason,
 			);
 		}
 
-		$this->log( "Info: Beginning refund for order $order_id for the amount of {$amount}" );
+		$this->log("Info: Beginning refund for order $order_id for the amount of {$amount}");
 
-		$response = WC_Stripe_API::request( $body, 'charges/' . $order->get_transaction_id() . '/refunds' );
+		$response = WC_Stripe_API::request($body, 'charges/' . $order->get_transaction_id() . '/refunds');
 
-		if ( is_wp_error( $response ) ) {
-			$this->log( 'Error: ' . $response->get_error_message() );
+		if (is_wp_error($response)) {
+			$this->log('Error: ' . $response->get_error_message());
 			return $response;
-		} elseif ( ! empty( $response->id ) ) {
-			$refund_message = sprintf( __( 'Refunded %1$s - Refund ID: %2$s - Reason: %3$s', 'woocommerce-gateway-stripe' ), wc_price( $response->amount / 100 ), $response->id, $reason );
-			$order->add_order_note( $refund_message );
-			$this->log( 'Success: ' . html_entity_decode( strip_tags( $refund_message ) ) );
+		} elseif ( ! empty($response->id)) {
+			$refund_message = sprintf(__('Refunded %1$s - Refund ID: %2$s - Reason: %3$s', 'woocommerce-gateway-stripe'), wc_price($response->amount / 100), $response->id, $reason);
+			$order->add_order_note($refund_message);
+			$this->log('Success: ' . html_entity_decode(strip_tags($refund_message)));
 			return true;
 		}
 	}
@@ -935,10 +935,10 @@ 
 	 * @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);
 		}
 	}
 
@@ -950,9 +950,9 @@ 
 	 *
 	 * @param string $message
 	 */
-	public function log( $message ) {
-		if ( $this->logging ) {
-			WC_Stripe::log( $message );
+	public function log($message) {
+		if ($this->logging) {
+			WC_Stripe::log($message);
 		}
 	}
 }

includes/class-wc-stripe-apple-pay.php

Spacing +281 added lines, -281 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -82,27 +82,27 @@ 
 	public function __construct() {
 		self::$_this = $this;
 
-		$gateway_settings = get_option( 'woocommerce_stripe_settings', '' );
+		$gateway_settings = get_option('woocommerce_stripe_settings', '');
 
-		$this->statement_descriptor = ! empty( $gateway_settings['statement_descriptor'] ) ? $gateway_settings['statement_descriptor'] : wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES );
+		$this->statement_descriptor = ! empty($gateway_settings['statement_descriptor']) ? $gateway_settings['statement_descriptor'] : wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES);
 
 		// If both site title and statement descriptor is not set. Fallback.
-		if ( empty( $this->statement_descriptor ) ) {
+		if (empty($this->statement_descriptor)) {
 			$this->statement_descriptor = $_SERVER['SERVER_NAME'];
 		}
 
-		$this->enabled               = ( ! empty( $gateway_settings['enabled'] ) && 'yes' === $gateway_settings['enabled'] ) ? true : false;
-		$this->testmode              = ( ! empty( $gateway_settings['testmode'] ) && 'yes' === $gateway_settings['testmode'] ) ? true : false;
-		$this->capture               = ( ! empty( $gateway_settings['capture'] ) && 'yes' === $gateway_settings['capture'] ) ? true : false;
-		$this->saved_cards           = ( ! empty( $gateway_settings['saved_cards'] ) && 'yes' === $gateway_settings['saved_cards'] ) ? true : false;
-		$this->apple_pay             = ( ! empty( $gateway_settings['apple_pay'] ) && 'yes' === $gateway_settings['apple_pay'] ) ? true : false;
-		$this->apple_pay_button      = ! empty( $gateway_settings['apple_pay_button'] ) ? $gateway_settings['apple_pay_button'] : 'black';
-		$this->apple_pay_button_lang = ! empty( $gateway_settings['apple_pay_button_lang'] ) ? $gateway_settings['apple_pay_button_lang'] : 'en';
-		$this->logging               = ( ! empty( $gateway_settings['logging'] ) && 'yes' === $gateway_settings['logging'] ) ? true : false;
-		$this->publishable_key       = ! empty( $gateway_settings['publishable_key'] ) ? $gateway_settings['publishable_key'] : '';
-
-		if ( $this->testmode ) {
-			$this->publishable_key = ! empty( $gateway_settings['test_publishable_key'] ) ? $gateway_settings['test_publishable_key'] : '';
+		$this->enabled               = ( ! empty($gateway_settings['enabled']) && 'yes' === $gateway_settings['enabled']) ? true : false;
+		$this->testmode              = ( ! empty($gateway_settings['testmode']) && 'yes' === $gateway_settings['testmode']) ? true : false;
+		$this->capture               = ( ! empty($gateway_settings['capture']) && 'yes' === $gateway_settings['capture']) ? true : false;
+		$this->saved_cards           = ( ! empty($gateway_settings['saved_cards']) && 'yes' === $gateway_settings['saved_cards']) ? true : false;
+		$this->apple_pay             = ( ! empty($gateway_settings['apple_pay']) && 'yes' === $gateway_settings['apple_pay']) ? true : false;
+		$this->apple_pay_button      = ! empty($gateway_settings['apple_pay_button']) ? $gateway_settings['apple_pay_button'] : 'black';
+		$this->apple_pay_button_lang = ! empty($gateway_settings['apple_pay_button_lang']) ? $gateway_settings['apple_pay_button_lang'] : 'en';
+		$this->logging               = ( ! empty($gateway_settings['logging']) && 'yes' === $gateway_settings['logging']) ? true : false;
+		$this->publishable_key       = ! empty($gateway_settings['publishable_key']) ? $gateway_settings['publishable_key'] : '';
+
+		if ($this->testmode) {
+			$this->publishable_key = ! empty($gateway_settings['test_publishable_key']) ? $gateway_settings['test_publishable_key'] : '';
 		}
 
 		$this->init();
@@ -121,53 +121,53 @@ 
 	 */
 	public function init() {
 		// If Apple Pay is not enabled no need to proceed further.
-		if ( ! $this->apple_pay ) {
+		if ( ! $this->apple_pay) {
 			return;
 		}
 
-		add_action( 'wp_enqueue_scripts', array( $this, 'cart_scripts' ) );
-		add_action( 'wp_enqueue_scripts', array( $this, 'single_scripts' ) );
+		add_action('wp_enqueue_scripts', array($this, 'cart_scripts'));
+		add_action('wp_enqueue_scripts', array($this, 'single_scripts'));
 
 		/**
 		 * In order to display the Apple Pay button in the correct position,
 		 * a new hook was added to WooCommerce 3.0. In older versions of WooCommerce,
 		 * CSS is used to position the button.
 		 */
-		if ( version_compare( WC_VERSION, '3.0.0', '<' ) ) {
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_apple_pay_button' ), 1 );
+		if (version_compare(WC_VERSION, '3.0.0', '<')) {
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_apple_pay_button'), 1);
 		} else {
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_apple_pay_button' ), 1 );
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_apple_pay_button'), 1);
 		}
 
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_apple_pay_button' ), 1 );
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_apple_pay_separator_html' ), 2 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_apple_pay_button' ), 1 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_apple_pay_separator_html' ), 2 );
-		add_action( 'wc_ajax_wc_stripe_log_apple_pay_errors', array( $this, 'log_apple_pay_errors' ) );
-		add_action( 'wc_ajax_wc_stripe_apple_pay', array( $this, 'process_apple_pay' ) );
-		add_action( 'wc_ajax_wc_stripe_generate_apple_pay_cart', array( $this, 'generate_apple_pay_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_apple_pay_clear_cart', array( $this, 'clear_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_generate_apple_pay_single', array( $this, 'generate_apple_pay_single' ) );
-		add_action( 'wc_ajax_wc_stripe_apple_pay_get_shipping_methods', array( $this, 'get_shipping_methods' ) );
-		add_action( 'wc_ajax_wc_stripe_apple_pay_update_shipping_method', array( $this, 'update_shipping_method' ) );
-		add_filter( 'woocommerce_gateway_title', array( $this, 'filter_gateway_title' ), 10, 2 );
-		add_filter( 'woocommerce_validate_postcode', array( $this, 'postal_code_validation' ), 10, 3 );
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_apple_pay_button'), 1);
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_apple_pay_separator_html'), 2);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_apple_pay_button'), 1);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_apple_pay_separator_html'), 2);
+		add_action('wc_ajax_wc_stripe_log_apple_pay_errors', array($this, 'log_apple_pay_errors'));
+		add_action('wc_ajax_wc_stripe_apple_pay', array($this, 'process_apple_pay'));
+		add_action('wc_ajax_wc_stripe_generate_apple_pay_cart', array($this, 'generate_apple_pay_cart'));
+		add_action('wc_ajax_wc_stripe_apple_pay_clear_cart', array($this, 'clear_cart'));
+		add_action('wc_ajax_wc_stripe_generate_apple_pay_single', array($this, 'generate_apple_pay_single'));
+		add_action('wc_ajax_wc_stripe_apple_pay_get_shipping_methods', array($this, 'get_shipping_methods'));
+		add_action('wc_ajax_wc_stripe_apple_pay_update_shipping_method', array($this, 'update_shipping_method'));
+		add_filter('woocommerce_gateway_title', array($this, 'filter_gateway_title'), 10, 2);
+		add_filter('woocommerce_validate_postcode', array($this, 'postal_code_validation'), 10, 3);
 	}
 
 	/**
 	 * Filters the gateway title to reflect Apple Pay.
 	 *
 	 */
-	public function filter_gateway_title( $title, $id ) {
+	public function filter_gateway_title($title, $id) {
 		global $post;
 
-		if ( ! is_object( $post ) ) {
+		if ( ! is_object($post)) {
 			return $title;
 		}
 
-		$method_title = get_post_meta( $post->ID, '_payment_method_title', true );
+		$method_title = get_post_meta($post->ID, '_payment_method_title', true);
 
-		if ( 'stripe' === $id && ! empty( $method_title ) ) {
+		if ('stripe' === $id && ! empty($method_title)) {
 			return $method_title;
 		}
 
@@ -181,13 +181,13 @@ 
 	 * @version 3.1.4
 	 */
 	public function log_apple_pay_errors() {
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_nonce' ) && ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_nonce') && ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
-		$errors = wc_clean( stripslashes( $_POST['errors'] ) );
+		$errors = wc_clean(stripslashes($_POST['errors']));
 
-		$this->log( 'Apple Pay: ' . $errors );
+		$this->log('Apple Pay: ' . $errors);
 
 		exit;
 	}
@@ -198,10 +198,10 @@ 
 	 * @since 3.1.4
 	 * @version 3.1.4
 	 */
-	public function postal_code_validation( $valid, $postcode, $country ) {
+	public function postal_code_validation($valid, $postcode, $country) {
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! $this->apple_pay || ! isset( $gateways['stripe'] ) ) {
+		if ( ! $this->apple_pay || ! isset($gateways['stripe'])) {
 			return $valid;
 		}
 
@@ -210,7 +210,7 @@ 
 		 * when passing it back from the shippingcontactselected object. This causes WC to invalidate
 		 * the order and not let it go through. The remedy for now is just to remove this validation.
 		 */
-		if ( 'GB' === $country || 'CA' === $country ) {
+		if ('GB' === $country || 'CA' === $country) {
 			return true;
 		}
 
@@ -224,42 +224,42 @@ 
 	 * @version 3.1.4
 	 */
 	public function single_scripts() {
-		if ( ! is_single() ) {
+		if ( ! is_single()) {
 			return;
 		}
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
-		if ( ! is_object( $product ) || ! in_array( ( version_compare( WC_VERSION, '3.0.0', '<' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+		if ( ! is_object($product) || ! in_array((version_compare(WC_VERSION, '3.0.0', '<') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_enqueue_style( 'stripe_apple_pay', plugins_url( 'assets/css/stripe-apple-pay.css', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION );
+		wp_enqueue_style('stripe_apple_pay', plugins_url('assets/css/stripe-apple-pay.css', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION);
 
-		wp_enqueue_script( 'stripe', 'https://js.stripe.com/v2/', '', '1.0', true );
-		wp_enqueue_script( 'woocommerce_stripe_apple_pay_single', plugins_url( 'assets/js/stripe-apple-pay-single' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_enqueue_script('stripe', 'https://js.stripe.com/v2/', '', '1.0', true);
+		wp_enqueue_script('woocommerce_stripe_apple_pay_single', plugins_url('assets/js/stripe-apple-pay-single' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('stripe'), WC_STRIPE_VERSION, true);
 
 		$stripe_params = array(
 			'key'                                           => $this->publishable_key,
 			'currency_code'                                 => get_woocommerce_currency(),
-			'country_code'                                  => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+			'country_code'                                  => substr(get_option('woocommerce_default_country'), 0, 2),
 			'label'                                         => $this->statement_descriptor,
-			'ajaxurl'                                       => WC_AJAX::get_endpoint( '%%endpoint%%' ),
-			'stripe_apple_pay_nonce'                        => wp_create_nonce( '_wc_stripe_apple_pay_nonce' ),
-			'stripe_apple_pay_cart_nonce'                   => wp_create_nonce( '_wc_stripe_apple_pay_cart_nonce' ),
-			'stripe_apple_pay_get_shipping_methods_nonce'   => wp_create_nonce( '_wc_stripe_apple_pay_get_shipping_methods_nonce' ),
-			'stripe_apple_pay_update_shipping_method_nonce' => wp_create_nonce( '_wc_stripe_apple_pay_update_shipping_method_nonce' ),
+			'ajaxurl'                                       => WC_AJAX::get_endpoint('%%endpoint%%'),
+			'stripe_apple_pay_nonce'                        => wp_create_nonce('_wc_stripe_apple_pay_nonce'),
+			'stripe_apple_pay_cart_nonce'                   => wp_create_nonce('_wc_stripe_apple_pay_cart_nonce'),
+			'stripe_apple_pay_get_shipping_methods_nonce'   => wp_create_nonce('_wc_stripe_apple_pay_get_shipping_methods_nonce'),
+			'stripe_apple_pay_update_shipping_method_nonce' => wp_create_nonce('_wc_stripe_apple_pay_update_shipping_method_nonce'),
 			'needs_shipping'                                => $product->needs_shipping() ? 'yes' : 'no',
 			'i18n'                                          => array(
-				'sub_total' => __( 'Sub-Total', 'woocommerce-gateway-stripe' ),
+				'sub_total' => __('Sub-Total', 'woocommerce-gateway-stripe'),
 			),
 		);
 
-		wp_localize_script( 'woocommerce_stripe_apple_pay_single', 'wc_stripe_apple_pay_single_params', apply_filters( 'wc_stripe_apple_pay_single_params', $stripe_params ) );
+		wp_localize_script('woocommerce_stripe_apple_pay_single', 'wc_stripe_apple_pay_single_params', apply_filters('wc_stripe_apple_pay_single_params', $stripe_params));
 	}
 
 	/**
@@ -269,32 +269,32 @@ 
 	 * @version 3.1.0
 	 */
 	public function cart_scripts() {
-		if ( ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_enqueue_style( 'stripe_apple_pay', plugins_url( 'assets/css/stripe-apple-pay.css', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION );
+		wp_enqueue_style('stripe_apple_pay', plugins_url('assets/css/stripe-apple-pay.css', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION);
 
-		wp_enqueue_script( 'stripe', 'https://js.stripe.com/v2/', '', '1.0', true );
-		wp_enqueue_script( 'woocommerce_stripe_apple_pay', plugins_url( 'assets/js/stripe-apple-pay' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_enqueue_script('stripe', 'https://js.stripe.com/v2/', '', '1.0', true);
+		wp_enqueue_script('woocommerce_stripe_apple_pay', plugins_url('assets/js/stripe-apple-pay' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('stripe'), WC_STRIPE_VERSION, true);
 
 		$stripe_params = array(
 			'key'                                           => $this->publishable_key,
 			'currency_code'                                 => get_woocommerce_currency(),
-			'country_code'                                  => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+			'country_code'                                  => substr(get_option('woocommerce_default_country'), 0, 2),
 			'label'                                         => $this->statement_descriptor,
-			'ajaxurl'                                       => WC_AJAX::get_endpoint( '%%endpoint%%' ),
-			'stripe_apple_pay_nonce'                        => wp_create_nonce( '_wc_stripe_apple_pay_nonce' ),
-			'stripe_apple_pay_cart_nonce'                   => wp_create_nonce( '_wc_stripe_apple_pay_cart_nonce' ),
-			'stripe_apple_pay_get_shipping_methods_nonce'   => wp_create_nonce( '_wc_stripe_apple_pay_get_shipping_methods_nonce' ),
-			'stripe_apple_pay_update_shipping_method_nonce' => wp_create_nonce( '_wc_stripe_apple_pay_update_shipping_method_nonce' ),
+			'ajaxurl'                                       => WC_AJAX::get_endpoint('%%endpoint%%'),
+			'stripe_apple_pay_nonce'                        => wp_create_nonce('_wc_stripe_apple_pay_nonce'),
+			'stripe_apple_pay_cart_nonce'                   => wp_create_nonce('_wc_stripe_apple_pay_cart_nonce'),
+			'stripe_apple_pay_get_shipping_methods_nonce'   => wp_create_nonce('_wc_stripe_apple_pay_get_shipping_methods_nonce'),
+			'stripe_apple_pay_update_shipping_method_nonce' => wp_create_nonce('_wc_stripe_apple_pay_update_shipping_method_nonce'),
 			'needs_shipping'                                => WC()->cart->needs_shipping() ? 'yes' : 'no',
 			'is_cart_page'                                  => is_cart() ? 'yes' : 'no',
 		);
 
-		wp_localize_script( 'woocommerce_stripe_apple_pay', 'wc_stripe_apple_pay_params', apply_filters( 'wc_stripe_apple_pay_params', $stripe_params ) );
+		wp_localize_script('woocommerce_stripe_apple_pay', 'wc_stripe_apple_pay_params', apply_filters('wc_stripe_apple_pay_params', $stripe_params));
 	}
 
 	/**
@@ -321,23 +321,23 @@ 
 		 * In order for the Apple Pay button to show on product detail page,
 		 * Apple Pay must be enabled and Stripe gateway must be enabled.
 		 */
-		if ( ! $this->apple_pay || ! isset( $gateways['stripe'] ) ) {
+		if ( ! $this->apple_pay || ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( is_single() ) {
+		if (is_single()) {
 			global $post;
 
-			$product = wc_get_product( $post->ID );
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( version_compare( WC_VERSION, '3.0.0', '<' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((version_compare(WC_VERSION, '3.0.0', '<') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 		}
 
 		?>
 		<div class="apple-pay-button-wrapper">
-			<button class="apple-pay-button" lang="<?php echo esc_attr( $this->apple_pay_button_lang ); ?>" style="-webkit-appearance: -apple-pay-button; -apple-pay-button-type: buy; -apple-pay-button-style: <?php echo esc_attr( $this->apple_pay_button ); ?>;"></button>
+			<button class="apple-pay-button" lang="<?php echo esc_attr($this->apple_pay_button_lang); ?>" style="-webkit-appearance: -apple-pay-button; -apple-pay-button-type: buy; -apple-pay-button-style: <?php echo esc_attr($this->apple_pay_button); ?>;"></button>
 		</div>
 		<?php
 	}
@@ -355,21 +355,21 @@ 
 		 * In order for the Apple Pay button to show on cart page,
 		 * Apple Pay must be enabled and Stripe gateway must be enabled.
 		 */
-		if ( ! $this->apple_pay || ! isset( $gateways['stripe'] ) ) {
+		if ( ! $this->apple_pay || ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( is_single() ) {
+		if (is_single()) {
 			global $post;
 
-			$product = wc_get_product( $post->ID );
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( version_compare( WC_VERSION, '3.0.0', '<' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((version_compare(WC_VERSION, '3.0.0', '<') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 		}
 		?>
-		<p class="apple-pay-button-checkout-separator">- <?php esc_html_e( 'Or', 'woocommerce-gateway-stripe' ); ?> -</p>
+		<p class="apple-pay-button-checkout-separator">- <?php esc_html_e('Or', 'woocommerce-gateway-stripe'); ?> -</p>
 		<?php
 	}
 
@@ -380,51 +380,51 @@ 
 	 * @version 3.1.0
 	 */
 	public function generate_apple_pay_single() {
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->shipping->reset_shipping();
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
-		$qty     = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
+		$product = wc_get_product($post->ID);
+		$qty     = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
 
 		/**
 		 * If this page is single product page, we need to simulate
 		 * adding the product to the cart taken account if it is a
 		 * simple or variable product.
 		 */
-		if ( is_single() ) {
+		if (is_single()) {
 			// First empty the cart to prevent wrong calculation.
 			WC()->cart->empty_cart();
 
-			if ( 'variable' === ( version_compare( WC_VERSION, '3.0.0', '<' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-				$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+			if ('variable' === (version_compare(WC_VERSION, '3.0.0', '<') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+				$attributes = array_map('wc_clean', $_POST['attributes']);
 
-				if ( version_compare( WC_VERSION, '3.0.0', '<' ) ) {
-					$variation_id = $product->get_matching_variation( $attributes );
+				if (version_compare(WC_VERSION, '3.0.0', '<')) {
+					$variation_id = $product->get_matching_variation($attributes);
 				} else {
-					$data_store = WC_Data_Store::load( 'product' );
-					$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+					$data_store = WC_Data_Store::load('product');
+					$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 				}
 
-				WC()->cart->add_to_cart( $product->get_id(), $qty, $variation_id, $attributes );
+				WC()->cart->add_to_cart($product->get_id(), $qty, $variation_id, $attributes);
 			}
 
-			if ( 'simple' === ( version_compare( WC_VERSION, '3.0.0', '<' ) ? $product->product_type : $product->get_type() ) ) {
-				WC()->cart->add_to_cart( $product->get_id(), $qty );
+			if ('simple' === (version_compare(WC_VERSION, '3.0.0', '<') ? $product->product_type : $product->get_type())) {
+				WC()->cart->add_to_cart($product->get_id(), $qty);
 			}
 		}
 
 		WC()->cart->calculate_totals();
 
-		wp_send_json( array( 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total ) );
+		wp_send_json(array('line_items' => $this->build_line_items(), 'total' => WC()->cart->total));
 	}
 
 	/**
@@ -434,11 +434,11 @@ 
 	 * @version 3.1.0
 	 */
 	public function generate_apple_pay_cart() {
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_cart_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
-		wp_send_json( array( 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total ) );
+		wp_send_json(array('line_items' => $this->build_line_items(), 'total' => WC()->cart->total));
 	}
 
 	/**
@@ -459,29 +459,29 @@ 
 	 * @version 3.1.0
 	 * @param array $address
 	 */
-	public function calculate_shipping( $address = array() ) {
-		$country  = strtoupper( $address['countryCode'] );
-		$state    = strtoupper( $address['administrativeArea'] );
+	public function calculate_shipping($address = array()) {
+		$country  = strtoupper($address['countryCode']);
+		$state    = strtoupper($address['administrativeArea']);
 		$postcode = $address['postalCode'];
 		$city     = $address['locality'];
 
 		WC()->shipping->reset_shipping();
 
-		if ( $postcode && ! WC_Validation::is_postcode( $postcode, $country ) ) {
-			throw new Exception( __( 'Please enter a valid postcode/ZIP.', 'woocommerce-gateway-stripe' ) );
-		} elseif ( $postcode ) {
-			$postcode = wc_format_postcode( $postcode, $country );
+		if ($postcode && ! WC_Validation::is_postcode($postcode, $country)) {
+			throw new Exception(__('Please enter a valid postcode/ZIP.', 'woocommerce-gateway-stripe'));
+		} elseif ($postcode) {
+			$postcode = wc_format_postcode($postcode, $country);
 		}
 
-		if ( $country ) {
-			WC()->customer->set_location( $country, $state, $postcode, $city );
-			WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
+		if ($country) {
+			WC()->customer->set_location($country, $state, $postcode, $city);
+			WC()->customer->set_shipping_location($country, $state, $postcode, $city);
 		} else {
 			WC()->customer->set_to_base();
 			WC()->customer->set_shipping_to_base();
 		}
 
-		WC()->customer->calculated_shipping( true );
+		WC()->customer->calculated_shipping(true);
 
 		/**
 		 * Set the shipping package.
@@ -503,17 +503,17 @@ 
 		$packages[0]['destination']['postcode']  = $postcode;
 		$packages[0]['destination']['city']      = $city;
 
-		foreach ( WC()->cart->get_cart() as $item ) {
-			if ( $item['data']->needs_shipping() ) {
-				if ( isset( $item['line_total'] ) ) {
+		foreach (WC()->cart->get_cart() as $item) {
+			if ($item['data']->needs_shipping()) {
+				if (isset($item['line_total'])) {
 					$packages[0]['contents_cost'] += $item['line_total'];
 				}
 			}
 		}
 
-		$packages = apply_filters( 'woocommerce_cart_shipping_packages', $packages );
+		$packages = apply_filters('woocommerce_cart_shipping_packages', $packages);
 
-		WC()->shipping->calculate_shipping( $packages );
+		WC()->shipping->calculate_shipping($packages);
 	}
 
 	/**
@@ -523,18 +523,18 @@ 
 	 * @version 3.1.0
 	 */
 	public function get_shipping_methods() {
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_get_shipping_methods_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_get_shipping_methods_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		try {
-			$address = array_map( 'wc_clean', $_POST['address'] );
+			$address = array_map('wc_clean', $_POST['address']);
 
-			$this->calculate_shipping( $address );
+			$this->calculate_shipping($address);
 
 			// Set the shipping options.
 			$currency = get_woocommerce_currency();
@@ -542,13 +542,13 @@ 
 
 			$packages = WC()->shipping->get_packages();
 
-			if ( ! empty( $packages ) && WC()->customer->has_calculated_shipping() ) {
-				foreach ( $packages as $package_key => $package ) {
-					if ( empty( $package['rates'] ) ) {
-						throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+			if ( ! empty($packages) && WC()->customer->has_calculated_shipping()) {
+				foreach ($packages as $package_key => $package) {
+					if (empty($package['rates'])) {
+						throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 					}
 
-					foreach ( $package['rates'] as $key => $rate ) {
+					foreach ($package['rates'] as $key => $rate) {
 						$data[] = array(
 							'id'       => $rate->id,
 							'label'    => $rate->label,
@@ -562,16 +562,16 @@ 
 				}
 
 				// Auto select the first shipping method.
-				WC()->session->set( 'chosen_shipping_methods', array( $data[0]['id'] ) );
+				WC()->session->set('chosen_shipping_methods', array($data[0]['id']));
 
 				WC()->cart->calculate_totals();
 
-				wp_send_json( array( 'success' => 'true', 'shipping_methods' => $this->build_shipping_methods( $data ), 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total ) );
+				wp_send_json(array('success' => 'true', 'shipping_methods' => $this->build_shipping_methods($data), 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total));
 			} else {
-				throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 			}
-		} catch ( Exception $e ) {
-			wp_send_json( array( 'success' => 'false', 'shipping_methods' => array(), 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total ) );
+		} catch (Exception $e) {
+			wp_send_json(array('success' => 'false', 'shipping_methods' => array(), 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total));
 		}
 	}
 
@@ -582,29 +582,29 @@ 
 	 * @version 3.1.0
 	 */
 	public function update_shipping_method() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_update_shipping_method_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_update_shipping_method_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
-		$selected_shipping_method = array_map( 'wc_clean', $_POST['selected_shipping_method'] );
+		$selected_shipping_method = array_map('wc_clean', $_POST['selected_shipping_method']);
 
-		WC()->session->set( 'chosen_shipping_methods', array( $selected_shipping_method['identifier'] ) );
+		WC()->session->set('chosen_shipping_methods', array($selected_shipping_method['identifier']));
 
 		WC()->cart->calculate_totals();
 
 		// Send back the new cart total.
 		$currency  = get_woocommerce_currency();
-		$tax_total = max( 0, round( WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp ) );
+		$tax_total = max(0, round(WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp));
 		$data      = array(
 			'total' => WC()->cart->total,
 		);
 
 		// Include fees and taxes as displayItems.
-		foreach ( WC()->cart->fees as $key => $fee ) {
+		foreach (WC()->cart->fees as $key => $fee) {
 			$data['items'][] = array(
 				'label'  => $fee->name,
 				'amount' => array(
@@ -613,9 +613,9 @@ 
 				),
 			);
 		}
-		if ( 0 < $tax_total ) {
+		if (0 < $tax_total) {
 			$data['items'][] = array(
-				'label'  => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount' => array(
 					'currency' => $currency,
 					'value'    => $tax_total,
@@ -623,7 +623,7 @@ 
 			);
 		}
 
-		wp_send_json( array( 'success' => 'true', 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total ) );
+		wp_send_json(array('success' => 'true', 'line_items' => $this->build_line_items(), 'total' => WC()->cart->total));
 	}
 
 	/**
@@ -634,37 +634,37 @@ 
 	 * @version 3.1.0
 	 */
 	public function process_apple_pay() {
-		if ( ! wp_verify_nonce( $_POST['nonce'], '_wc_stripe_apple_pay_nonce' ) ) {
-			wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+		if ( ! wp_verify_nonce($_POST['nonce'], '_wc_stripe_apple_pay_nonce')) {
+			wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 		}
 
 		try {
-			$result = array_map( 'wc_clean', $_POST['result'] );
+			$result = array_map('wc_clean', $_POST['result']);
 
-			$order = $this->create_order( $result );
+			$order = $this->create_order($result);
 
-			$order_id = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->id : $order->get_id();
+			$order_id = version_compare(WC_VERSION, '3.0.0', '<') ? $order->id : $order->get_id();
 
 			// Handle payment.
-			if ( $order->get_total() > 0 ) {
+			if ($order->get_total() > 0) {
 
-				if ( $order->get_total() * 100 < WC_Stripe::get_minimum_amount() ) {
-					return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe::get_minimum_amount() / 100 ) ) );
+				if ($order->get_total() * 100 < WC_Stripe::get_minimum_amount()) {
+					return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe::get_minimum_amount() / 100)));
 				}
 
-				$this->log( "Info: Begin processing payment for order {$order_id} for the amount of {$order->get_total()}" );
+				$this->log("Info: Begin processing payment for order {$order_id} for the amount of {$order->get_total()}");
 
 				// Make the request.
-				$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $result['token']['id'] ) );
+				$response = WC_Stripe_API::request($this->generate_payment_request($order, $result['token']['id']));
 
-				if ( is_wp_error( $response ) ) {
+				if (is_wp_error($response)) {
 					$localized_messages = $this->get_localized_messages();
 
-					throw new Exception( ( isset( $localized_messages[ $response->get_error_code() ] ) ? $localized_messages[ $response->get_error_code() ] : $response->get_error_message() ) );
+					throw new Exception((isset($localized_messages[$response->get_error_code()]) ? $localized_messages[$response->get_error_code()] : $response->get_error_message()));
 				}
 
 				// Process valid response.
-				$this->process_response( $response, $order );
+				$this->process_response($response, $order);
 			} else {
 				$order->payment_complete();
 			}
@@ -672,24 +672,24 @@ 
 			// Remove cart.
 			WC()->cart->empty_cart();
 
-			update_post_meta( $order_id, '_customer_user', get_current_user_id() );
-			update_post_meta( $order_id, '_payment_method_title', __( 'Apple Pay (Stripe)', 'woocommerce-gateway-stripe' ) );
+			update_post_meta($order_id, '_customer_user', get_current_user_id());
+			update_post_meta($order_id, '_payment_method_title', __('Apple Pay (Stripe)', 'woocommerce-gateway-stripe'));
 
 			// Return thank you page redirect.
-			wp_send_json( array(
+			wp_send_json(array(
 				'success'  => 'true',
-				'redirect' => $this->get_return_url( $order ),
-			) );
+				'redirect' => $this->get_return_url($order),
+			));
 
-		} catch ( Exception $e ) {
-			WC()->session->set( 'refresh_totals', true );
-			$this->log( sprintf( __( 'Error: %s', 'woocommerce-gateway-stripe' ), $e->getMessage() ) );
+		} catch (Exception $e) {
+			WC()->session->set('refresh_totals', true);
+			$this->log(sprintf(__('Error: %s', 'woocommerce-gateway-stripe'), $e->getMessage()));
 
-			if ( is_object( $order ) && isset( $order_id ) && $order->has_status( array( 'pending', 'failed' ) ) ) {
-				$this->send_failed_order_email( $order_id );
+			if (is_object($order) && isset($order_id) && $order->has_status(array('pending', 'failed'))) {
+				$this->send_failed_order_email($order_id);
 			}
 
-			wp_send_json( array( 'success' => 'false', 'msg' => $e->getMessage() ) );
+			wp_send_json(array('success' => 'false', 'msg' => $e->getMessage()));
 		}
 	}
 
@@ -699,16 +699,16 @@ 
 	 * @param string $source token
 	 * @return array()
 	 */
-	protected function generate_payment_request( $order, $source ) {
+	protected function generate_payment_request($order, $source) {
 		$post_data                = array();
-		$post_data['currency']    = strtolower( version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->get_order_currency() : $order->get_currency() );
-		$post_data['amount']      = $this->get_stripe_amount( $order->get_total(), $post_data['currency'] );
-		$post_data['description'] = sprintf( __( '%1$s - Order %2$s', 'woocommerce-gateway-stripe' ), $this->statement_descriptor, $order->get_order_number() );
+		$post_data['currency']    = strtolower(version_compare(WC_VERSION, '3.0.0', '<') ? $order->get_order_currency() : $order->get_currency());
+		$post_data['amount']      = $this->get_stripe_amount($order->get_total(), $post_data['currency']);
+		$post_data['description'] = sprintf(__('%1$s - Order %2$s', 'woocommerce-gateway-stripe'), $this->statement_descriptor, $order->get_order_number());
 		$post_data['capture']     = $this->capture ? 'true' : 'false';
 
-		$billing_email      = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->billing_email : $order->get_billing_email();
+		$billing_email = version_compare(WC_VERSION, '3.0.0', '<') ? $order->billing_email : $order->get_billing_email();
 
-		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;
 		}
 
@@ -723,7 +723,7 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_payment_request', $post_data, $order );
+		return apply_filters('wc_stripe_generate_payment_request', $post_data, $order);
 	}
 
 	/**
@@ -732,14 +732,14 @@ 
 	 * @since 3.1.0
 	 * @version 3.1.0
 	 */
-	public function build_shipping_methods( $shipping_methods ) {
-		if ( empty( $shipping_methods ) ) {
+	public function build_shipping_methods($shipping_methods) {
+		if (empty($shipping_methods)) {
 			return array();
 		}
 
 		$shipping = array();
 
-		foreach ( $shipping_methods as $method ) {
+		foreach ($shipping_methods as $method) {
 			$shipping[] = array(
 				'label'      => $method['label'],
 				'detail'     => '',
@@ -758,65 +758,65 @@ 
 	 * @version 3.1.0
 	 */
 	public function build_line_items() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		$decimals = apply_filters( 'wc_stripe_apple_pay_decimals', 2 );
+		$decimals = apply_filters('wc_stripe_apple_pay_decimals', 2);
 		
 		$items    = array();
 		$subtotal = 0;
 
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
-			$amount         = wc_format_decimal( $values['line_subtotal'], $decimals );
-			$subtotal       += $values['line_subtotal'];
+		foreach (WC()->cart->get_cart() as $cart_item_key => $values) {
+			$amount         = wc_format_decimal($values['line_subtotal'], $decimals);
+			$subtotal += $values['line_subtotal'];
 			$quantity_label = 1 < $values['quantity'] ? ' (x' . $values['quantity'] . ')' : '';
 
 			$item = array(
 				'type'   => 'final',
 				'label'  => $values['data']->post->post_title . $quantity_label,
-				'amount' => wc_format_decimal( $amount, $decimals ),
+				'amount' => wc_format_decimal($amount, $decimals),
 			);
 
 			$items[] = $item;
 		}
 
 		// Default show only subtotal instead of itemization.
-		if ( apply_filters( 'wc_stripe_apple_pay_disable_itemization', true ) ) {
+		if (apply_filters('wc_stripe_apple_pay_disable_itemization', true)) {
 			$items = array();
 			$items[] = array(
 				'type'   => 'final',
-				'label'  => esc_html( __( 'Sub-Total', 'woocommerce-gateway-stripe' ) ),
-				'amount' => wc_format_decimal( $subtotal, $decimals ),
+				'label'  => esc_html(__('Sub-Total', 'woocommerce-gateway-stripe')),
+				'amount' => wc_format_decimal($subtotal, $decimals),
 			);
 		}
 
-		$discounts   = wc_format_decimal( WC()->cart->get_cart_discount_total(), $decimals );
-		$tax         = wc_format_decimal( WC()->cart->tax_total + WC()->cart->shipping_tax_total, $decimals );
-		$shipping    = wc_format_decimal( WC()->cart->shipping_total, $decimals );
-		$item_total  = wc_format_decimal( WC()->cart->cart_contents_total, $decimals ) + $discounts;
-		$order_total = wc_format_decimal( $item_total + $tax + $shipping, $decimals );
+		$discounts   = wc_format_decimal(WC()->cart->get_cart_discount_total(), $decimals);
+		$tax         = wc_format_decimal(WC()->cart->tax_total + WC()->cart->shipping_tax_total, $decimals);
+		$shipping    = wc_format_decimal(WC()->cart->shipping_total, $decimals);
+		$item_total  = wc_format_decimal(WC()->cart->cart_contents_total, $decimals) + $discounts;
+		$order_total = wc_format_decimal($item_total + $tax + $shipping, $decimals);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
 				'type'   => 'final',
-				'label'  => esc_html( __( 'Tax', 'woocommerce-gateway-stripe' ) ),
+				'label'  => esc_html(__('Tax', 'woocommerce-gateway-stripe')),
 				'amount' => $tax,
 			);
 		}
 
-		if ( WC()->cart->needs_shipping() ) {
+		if (WC()->cart->needs_shipping()) {
 			$items[] = array(
 				'type'   => 'final',
-				'label'  => esc_html( __( 'Shipping', 'woocommerce-gateway-stripe' ) ),
+				'label'  => esc_html(__('Shipping', 'woocommerce-gateway-stripe')),
 				'amount' => $shipping,
 			);
 		}
 
-		if ( WC()->cart->has_discount() ) {
+		if (WC()->cart->has_discount()) {
 			$items[] = array(
 				'type'   => 'final',
-				'label'  => esc_html( __( 'Discount', 'woocommerce-gateway-stripe' ) ),
+				'label'  => esc_html(__('Discount', 'woocommerce-gateway-stripe')),
 				'amount' => '-' . $discounts,
 			);
 		}
@@ -832,24 +832,24 @@ 
 	 * @param array $data
 	 * @return object $order
 	 */
-	public function create_order( $data = array() ) {
-		if ( empty( $data ) ) {
-			throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 520 ) );
+	public function create_order($data = array()) {
+		if (empty($data)) {
+			throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 520));
 		}
 
 		$order = wc_create_order();
-		$order_id = version_compare( WC_VERSION, '3.0.0', '<' ) ? $order->id : $order->get_id();
+		$order_id = version_compare(WC_VERSION, '3.0.0', '<') ? $order->id : $order->get_id();
 
-		if ( is_wp_error( $order ) ) {
-			throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 520 ) );
-		} elseif ( false === $order ) {
-			throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 521 ) );
+		if (is_wp_error($order)) {
+			throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 520));
+		} elseif (false === $order) {
+			throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 521));
 		} else {
-			do_action( 'woocommerce_new_order', $order_id );
+			do_action('woocommerce_new_order', $order_id);
 		}
 
 		// Store the line items to the new/resumed order
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
+		foreach (WC()->cart->get_cart() as $cart_item_key => $values) {
 			$item_id = $order->add_product(
 				$values['data'],
 				$values['quantity'],
@@ -865,25 +865,25 @@ 
 				)
 			);
 
-			if ( ! $item_id ) {
-				throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 525 ) );
+			if ( ! $item_id) {
+				throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 525));
 			}
 
 			// Allow plugins to add order item meta
-			if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-				do_action( 'woocommerce_add_order_item_meta', $item_id, $values, $cart_item_key );
+			if (version_compare(WC_VERSION, '3.0', '<')) {
+				do_action('woocommerce_add_order_item_meta', $item_id, $values, $cart_item_key);
 			} else {
-				do_action( 'woocommerce_new_order_item', $item_id, wc_get_product( $item_id ), $order->get_id() );
+				do_action('woocommerce_new_order_item', $item_id, wc_get_product($item_id), $order->get_id());
 			}
 		}
 
 		// Store fees
-		foreach ( WC()->cart->get_fees() as $fee_key => $fee ) {
-			if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-				$item_id = $order->add_fee( $fee );
+		foreach (WC()->cart->get_fees() as $fee_key => $fee) {
+			if (version_compare(WC_VERSION, '3.0', '<')) {
+				$item_id = $order->add_fee($fee);
 			} else {
 				$item = new WC_Order_Item_Fee();
-				$item->set_props( array(
+				$item->set_props(array(
 					'name'      => $fee->name,
 					'tax_class' => $fee->taxable ? $fee->tax_class : 0,
 					'total'     => $fee->amount,
@@ -892,79 +892,79 @@ 
 						'total' => $fee->tax_data,
 					),
 					'order_id'  => $order->get_id(),
-				) );
+				));
 				$item_id = $item->save();
-				$order->add_item( $item );
+				$order->add_item($item);
 			}
 
-			if ( ! $item_id ) {
-				throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 526 ) );
+			if ( ! $item_id) {
+				throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 526));
 			}
 
 			// Allow plugins to add order item meta to fees
-			if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-				do_action( 'woocommerce_add_order_fee_meta', $order_id, $item_id, $fee, $fee_key );
+			if (version_compare(WC_VERSION, '3.0', '<')) {
+				do_action('woocommerce_add_order_fee_meta', $order_id, $item_id, $fee, $fee_key);
 			} else {
-				do_action( 'woocommerce_new_order_item', $item_id, $fee, $order->get_id() );
+				do_action('woocommerce_new_order_item', $item_id, $fee, $order->get_id());
 			}
 		}
 
 		// Store tax rows
-		foreach ( array_keys( WC()->cart->taxes + WC()->cart->shipping_taxes ) as $tax_rate_id ) {
-			$tax_amount = WC()->cart->get_tax_amount( $tax_rate_id );
-			$shipping_tax_amount = WC()->cart->get_shipping_tax_amount( $tax_rate_id );
+		foreach (array_keys(WC()->cart->taxes + WC()->cart->shipping_taxes) as $tax_rate_id) {
+			$tax_amount = WC()->cart->get_tax_amount($tax_rate_id);
+			$shipping_tax_amount = WC()->cart->get_shipping_tax_amount($tax_rate_id);
 
-			if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-				$item_id = $order->add_tax( $tax_rate_id, $tax_amount, $shipping_tax_amount );
+			if (version_compare(WC_VERSION, '3.0', '<')) {
+				$item_id = $order->add_tax($tax_rate_id, $tax_amount, $shipping_tax_amount);
 			} else {
 				$item = new WC_Order_Item_Tax();
-				$item->set_props( array(
+				$item->set_props(array(
 					'rate_id'            => $tax_rate_id,
 					'tax_total'          => $tax_amount,
 					'shipping_tax_total' => $shipping_tax_amount,
-				) );
-				$item->set_rate( $tax_rate_id );
-				$item->set_order_id( $order->get_id() );
+				));
+				$item->set_rate($tax_rate_id);
+				$item->set_order_id($order->get_id());
 				$item_id = $item->save();
-				$order->add_item( $item );
+				$order->add_item($item);
 			}
 
-			if ( $tax_rate_id && ! $item_id && apply_filters( 'woocommerce_cart_remove_taxes_zero_rate_id', 'zero-rated' ) !== $tax_rate_id ) {
-				throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 528 ) );
+			if ($tax_rate_id && ! $item_id && apply_filters('woocommerce_cart_remove_taxes_zero_rate_id', 'zero-rated') !== $tax_rate_id) {
+				throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 528));
 			}
 		}
 
 		// Store coupons
-		$discount = WC()->cart->get_coupon_discount_amount( $code );
-		$discount_tax = WC()->cart->get_coupon_discount_tax_amount( $code );
+		$discount = WC()->cart->get_coupon_discount_amount($code);
+		$discount_tax = WC()->cart->get_coupon_discount_tax_amount($code);
 
-		foreach ( WC()->cart->get_coupons() as $code => $coupon ) {
-			if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-				$coupon_id = $order->add_coupon( $code, $discount, $discount_tax );
+		foreach (WC()->cart->get_coupons() as $code => $coupon) {
+			if (version_compare(WC_VERSION, '3.0', '<')) {
+				$coupon_id = $order->add_coupon($code, $discount, $discount_tax);
 			} else {
 				$item = new WC_Order_Item_Coupon();
-				$item->set_props( array(
+				$item->set_props(array(
 					'code'         => $code,
 					'discount'     => $discount,
 					'discount_tax' => $discount_tax,
 					'order_id'     => $order->get_id(),
-				) );
+				));
 				$coupon_id = $item->save();
-				$order->add_item( $item );
+				$order->add_item($item);
 			}
 
-			if ( ! $coupon_id ) {
-				throw new Exception( sprintf( __( 'Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe' ), 529 ) );
+			if ( ! $coupon_id) {
+				throw new Exception(sprintf(__('Error %d: Unable to create order. Please try again.', 'woocommerce-gateway-stripe'), 529));
 			}
 		}
 
 		// Billing address
 		$billing_address = array();
-		if ( ! empty( $data['token']['card'] ) ) {
+		if ( ! empty($data['token']['card'])) {
 			// Name from Stripe is a full name string.
-			$name                          = explode( ' ', $data['token']['card']['name'] );
-			$lastname                      = array_pop( $name );
-			$firstname                     = implode( ' ', $name );
+			$name                          = explode(' ', $data['token']['card']['name']);
+			$lastname                      = array_pop($name);
+			$firstname                     = implode(' ', $name);
 			$billing_address['first_name'] = $firstname;
 			$billing_address['last_name']  = $lastname;
 			$billing_address['email']      = $data['shippingContact']['emailAddress'];
@@ -979,7 +979,7 @@ 
 
 		// Shipping address.
 		$shipping_address = array();
-		if ( WC()->cart->needs_shipping() && ! empty( $data['shippingContact'] ) ) {
+		if (WC()->cart->needs_shipping() && ! empty($data['shippingContact'])) {
 			$shipping_address['first_name'] = $data['shippingContact']['givenName'];
 			$shipping_address['last_name']  = $data['shippingContact']['familyName'];
 			$shipping_address['email']      = $data['shippingContact']['emailAddress'];
@@ -990,7 +990,7 @@ 
 			$shipping_address['city']       = $data['shippingContact']['locality'];
 			$shipping_address['state']      = $data['shippingContact']['administrativeArea'];
 			$shipping_address['postcode']   = $data['shippingContact']['postalCode'];
-		} elseif ( ! empty( $data['shippingContact'] ) ) {
+		} elseif ( ! empty($data['shippingContact'])) {
 			$shipping_address['first_name'] = $firstname;
 			$shipping_address['last_name']  = $lastname;
 			$shipping_address['email']      = $data['shippingContact']['emailAddress'];
@@ -1003,33 +1003,33 @@ 
 			$shipping_address['postcode']   = $data['token']['card']['address_zip'];
 		}
 
-		$order->set_address( $billing_address, 'billing' );
-		$order->set_address( $shipping_address, 'shipping' );
+		$order->set_address($billing_address, 'billing');
+		$order->set_address($shipping_address, 'shipping');
 
-		WC()->shipping->calculate_shipping( WC()->cart->get_shipping_packages() );
+		WC()->shipping->calculate_shipping(WC()->cart->get_shipping_packages());
 
 		// Get the rate object selected by user.
-		foreach ( WC()->shipping->get_packages() as $package_key => $package ) {
-			foreach ( $package['rates'] as $key => $rate ) {
+		foreach (WC()->shipping->get_packages() as $package_key => $package) {
+			foreach ($package['rates'] as $key => $rate) {
 				// Loop through user chosen shipping methods.
-				foreach ( WC()->session->get( 'chosen_shipping_methods' ) as $method ) {
-					if ( $method === $key ) {
-						if ( version_compare( WC_VERSION, '3.0', '<' ) ) {
-							$order->add_shipping( $rate );
+				foreach (WC()->session->get('chosen_shipping_methods') as $method) {
+					if ($method === $key) {
+						if (version_compare(WC_VERSION, '3.0', '<')) {
+							$order->add_shipping($rate);
 						} else {
 							$item = new WC_Order_Item_Shipping();
-							$item->set_props( array(
+							$item->set_props(array(
 								'method_title' => $rate->label,
 								'method_id'    => $rate->id,
-								'total'        => wc_format_decimal( $rate->cost ),
+								'total'        => wc_format_decimal($rate->cost),
 								'taxes'        => $rate->taxes,
 								'order_id'     => $order->get_id(),
-							) );
-							foreach ( $rate->get_meta_data() as $key => $value ) {
-								$item->add_meta_data( $key, $value, true );
+							));
+							foreach ($rate->get_meta_data() as $key => $value) {
+								$item->add_meta_data($key, $value, true);
 							}
 							$item->save();
-							$order->add_item( $item );
+							$order->add_item($item);
 						}
 					}
 				}
@@ -1037,16 +1037,16 @@ 
 		}
 
 		$available_gateways = WC()->payment_gateways->get_available_payment_gateways();
-		$order->set_payment_method( $available_gateways['stripe'] );
-		$order->set_total( WC()->cart->shipping_total, 'shipping' );
-		$order->set_total( WC()->cart->get_cart_discount_total(), 'cart_discount' );
-		$order->set_total( WC()->cart->get_cart_discount_tax_total(), 'cart_discount_tax' );
-		$order->set_total( WC()->cart->tax_total, 'tax' );
-		$order->set_total( WC()->cart->shipping_tax_total, 'shipping_tax' );
-		$order->set_total( WC()->cart->total );
+		$order->set_payment_method($available_gateways['stripe']);
+		$order->set_total(WC()->cart->shipping_total, 'shipping');
+		$order->set_total(WC()->cart->get_cart_discount_total(), 'cart_discount');
+		$order->set_total(WC()->cart->get_cart_discount_tax_total(), 'cart_discount_tax');
+		$order->set_total(WC()->cart->tax_total, 'tax');
+		$order->set_total(WC()->cart->shipping_tax_total, 'shipping_tax');
+		$order->set_total(WC()->cart->total);
 
 		// If we got here, the order was created without problems!
-		wc_transaction_query( 'commit' );
+		wc_transaction_query('commit');
 
 		return $order;
 	}
@@ -1059,9 +1059,9 @@ 
 	 *
 	 * @param string $message
 	 */
-	public function log( $message ) {
-		if ( $this->logging ) {
-			WC_Stripe::log( $message );
+	public function log($message) {
+		if ($this->logging) {
+			WC_Stripe::log($message);
 		}
 	}
 }