woocommerce / woocommerce-gateway-stripe

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

Spacing +257 added lines, -258 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -19,7 +19,7 @@ 
 	 */
 	public function display_admin_settings_webhook_description() {
 		/* translators: 1) webhook url */
-		return sprintf( __( 'You must add the following webhook endpoint <strong style="background-color:#ddd;">&nbsp;%s&nbsp;</strong> to your <a href="https://dashboard.stripe.com/account/webhooks" target="_blank">Stripe account settings</a>. This will enable you to receive notifications on the charge statuses.', 'woocommerce-gateway-stripe' ), WC_Stripe_Helper::get_webhook_url() );
+		return sprintf(__('You must add the following webhook endpoint <strong style="background-color:#ddd;">&nbsp;%s&nbsp;</strong> to your <a href="https://dashboard.stripe.com/account/webhooks" target="_blank">Stripe account settings</a>. This will enable you to receive notifications on the charge statuses.', 'woocommerce-gateway-stripe'), WC_Stripe_Helper::get_webhook_url());
 	}
 
 	/**
@@ -33,8 +33,8 @@ 
 				<input id="wc-%1$s-new-payment-method" name="wc-%1$s-new-payment-method" type="checkbox" value="true" style="width:auto;" />
 				<label for="wc-%1$s-new-payment-method" style="display:inline;">%2$s</label>
 			</p>',
-			esc_attr( $this->id ),
-			esc_html( apply_filters( 'wc_stripe_save_to_account_text', __( 'Save payment information to my account for future purchases.', 'woocommerce-gateway-stripe' ) ) )
+			esc_attr($this->id),
+			esc_html(apply_filters('wc_stripe_save_to_account_text', __('Save payment information to my account for future purchases.', 'woocommerce-gateway-stripe')))
 		);
 	}
 
@@ -45,7 +45,7 @@ 
 	 * @since 4.0.5
 	 * @param array $error
 	 */
-	public function is_retryable_error( $error ) {
+	public function is_retryable_error($error) {
 		return (
 			'invalid_request_error' === $error->type ||
 			'idempotency_error' === $error->type ||
@@ -62,11 +62,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_same_idempotency_error( $error ) {
+	public function is_same_idempotency_error($error) {
 		return (
 			$error &&
 			'idempotency_error' === $error->type &&
-			preg_match( '/Keys for idempotent requests can only be used with the same parameters they were first used with./i', $error->message )
+			preg_match('/Keys for idempotent requests can only be used with the same parameters they were first used with./i', $error->message)
 		);
 	}
 
@@ -77,11 +77,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_source_already_consumed_error( $error ) {
+	public function is_source_already_consumed_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/The reusable source you provided is consumed because it was previously charged without being attached to a customer or was detached from a customer. To charge a reusable source multiple time you must attach it to a customer first./i', $error->message )
+			preg_match('/The reusable source you provided is consumed because it was previously charged without being attached to a customer or was detached from a customer. To charge a reusable source multiple time you must attach it to a customer first./i', $error->message)
 		);
 	}
 
@@ -92,11 +92,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_customer_error( $error ) {
+	public function is_no_such_customer_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such customer/i', $error->message )
+			preg_match('/No such customer/i', $error->message)
 		);
 	}
 
@@ -107,11 +107,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_token_error( $error ) {
+	public function is_no_such_token_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such token/i', $error->message )
+			preg_match('/No such token/i', $error->message)
 		);
 	}
 
@@ -122,11 +122,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_such_source_error( $error ) {
+	public function is_no_such_source_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/No such source/i', $error->message )
+			preg_match('/No such source/i', $error->message)
 		);
 	}
 
@@ -137,11 +137,11 @@ 
 	 * @since 4.1.0
 	 * @param array $error
 	 */
-	public function is_no_linked_source_error( $error ) {
+	public function is_no_linked_source_error($error) {
 		return (
 			$error &&
 			'invalid_request_error' === $error->type &&
-			preg_match( '/does not have a linked source with ID/i', $error->message )
+			preg_match('/does not have a linked source with ID/i', $error->message)
 		);
 	}
 
@@ -154,13 +154,13 @@ 
 	 * @param object $error
 	 * @return bool
 	 */
-	public function need_update_idempotency_key( $source_object, $error ) {
+	public function need_update_idempotency_key($source_object, $error) {
 		return (
 			$error &&
 			1 < $this->retry_interval &&
-			! empty( $source_object ) &&
+			! empty($source_object) &&
 			'chargeable' === $source_object->status &&
-			self::is_same_idempotency_error( $error )
+			self::is_same_idempotency_error($error)
 		);
 	}
 
@@ -170,8 +170,8 @@ 
 	 * @since 4.1.3
 	 */
 	public function is_available() {
-		if ( 'yes' === $this->enabled ) {
-			if ( ! $this->secret_key || ! $this->publishable_key ) {
+		if ('yes' === $this->enabled) {
+			if ( ! $this->secret_key || ! $this->publishable_key) {
 				return false;
 			}
 			return true;
@@ -188,12 +188,12 @@ 
 	 * @param int $order_id
 	 * @return bool
 	 */
-	public function maybe_process_pre_orders( $order_id ) {
+	public function maybe_process_pre_orders($order_id) {
 		return (
 			WC_Stripe_Helper::is_pre_orders_exists() &&
-			$this->pre_orders->is_pre_order( $order_id ) &&
-			WC_Pre_Orders_Order::order_requires_payment_tokenization( $order_id ) &&
-			! is_wc_endpoint_url( 'order-pay' )
+			$this->pre_orders->is_pre_order($order_id) &&
+			WC_Pre_Orders_Order::order_requires_payment_tokenization($order_id) &&
+			! is_wc_endpoint_url('order-pay')
 		);
 	}
 
@@ -203,8 +203,8 @@ 
 	 * @since 1.0.0
 	 * @version 4.0.0
 	 */
-	public function add_admin_notice( $slug, $class, $message, $dismissible = false ) {
-		$this->notices[ $slug ] = array(
+	public function add_admin_notice($slug, $class, $message, $dismissible = false) {
+		$this->notices[$slug] = array(
 			'class'       => $class,
 			'message'     => $message,
 			'dismissible' => $dismissible,
@@ -220,7 +220,7 @@ 
 	 * @return array
 	 */
 	public function payment_icons() {
-		return apply_filters( 'wc_stripe_payment_icons', array(
+		return apply_filters('wc_stripe_payment_icons', array(
 			'visa'       => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/visa.svg" class="stripe-visa-icon stripe-icon" alt="Visa" />',
 			'amex'       => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/amex.svg" class="stripe-amex-icon stripe-icon" alt="American Express" />',
 			'mastercard' => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/mastercard.svg" class="stripe-mastercard-icon stripe-icon" alt="Mastercard" />',
@@ -237,7 +237,7 @@ 
 			'multibanco' => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/multibanco.svg" class="stripe-multibanco-icon stripe-icon" alt="Multibanco" />',
 			'sofort'     => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/sofort.svg" class="stripe-sofort-icon stripe-icon" alt="SOFORT" />',
 			'sepa'       => '<img src="' . WC_STRIPE_PLUGIN_URL . '/assets/images/sepa.svg" class="stripe-sepa-icon stripe-icon" alt="SEPA" />',
-		) );
+		));
 	}
 
 	/**
@@ -248,10 +248,10 @@ 
 	 * @version 4.0.0
 	 * @param object $order
 	 */
-	public function validate_minimum_order_amount( $order ) {
-		if ( $order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+	public function validate_minimum_order_amount($order) {
+		if ($order->get_total() * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 			/* translators: 1) dollar amount */
-			throw new WC_Stripe_Exception( 'Did not meet minimum amount', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+			throw new WC_Stripe_Exception('Did not meet minimum amount', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 		}
 	}
 
@@ -261,14 +261,14 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function get_transaction_url( $order ) {
-		if ( $this->testmode ) {
+	public function get_transaction_url($order) {
+		if ($this->testmode) {
 			$this->view_transaction_url = 'https://dashboard.stripe.com/test/payments/%s';
 		} else {
 			$this->view_transaction_url = 'https://dashboard.stripe.com/payments/%s';
 		}
 
-		return parent::get_transaction_url( $order );
+		return parent::get_transaction_url($order);
 	}
 
 	/**
@@ -277,15 +277,15 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function get_stripe_customer_id( $order ) {
-		$customer = get_user_meta( WC_Stripe_Helper::is_pre_30() ? $order->customer_user : $order->get_customer_id(), '_stripe_customer_id', true );
+	public function get_stripe_customer_id($order) {
+		$customer = get_user_meta(WC_Stripe_Helper::is_pre_30() ? $order->customer_user : $order->get_customer_id(), '_stripe_customer_id', true);
 
-		if ( empty( $customer ) ) {
+		if (empty($customer)) {
 			// Try to get it via the order.
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				return get_post_meta( $order->id, '_stripe_customer_id', true );
+			if (WC_Stripe_Helper::is_pre_30()) {
+				return get_post_meta($order->id, '_stripe_customer_id', true);
 			} else {
-				return $order->get_meta( '_stripe_customer_id', true );
+				return $order->get_meta('_stripe_customer_id', true);
 			}
 		} else {
 			return $customer;
@@ -302,9 +302,9 @@ 
 	 * @param object $order
 	 * @param int $id Stripe session id.
 	 */
-	public function get_stripe_return_url( $order = null, $id = null ) {
-		if ( is_object( $order ) ) {
-			if ( empty( $id ) ) {
+	public function get_stripe_return_url($order = null, $id = null) {
+		if (is_object($order)) {
+			if (empty($id)) {
 				$id = uniqid();
 			}
 
@@ -315,10 +315,10 @@ 
 				'order_id'       => $order_id,
 			);
 
-			return esc_url_raw( add_query_arg( $args, $this->get_return_url( $order ) ) );
+			return esc_url_raw(add_query_arg($args, $this->get_return_url($order)));
 		}
 
-		return esc_url_raw( add_query_arg( array( 'utm_nooverride' => '1' ), $this->get_return_url() ) );
+		return esc_url_raw(add_query_arg(array('utm_nooverride' => '1'), $this->get_return_url()));
 	}
 
 	/**
@@ -326,8 +326,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function has_subscription( $order_id ) {
-		return ( function_exists( 'wcs_order_contains_subscription' ) && ( wcs_order_contains_subscription( $order_id ) || wcs_is_subscription( $order_id ) || wcs_order_contains_renewal( $order_id ) ) );
+	public function has_subscription($order_id) {
+		return (function_exists('wcs_order_contains_subscription') && (wcs_order_contains_subscription($order_id) || wcs_is_subscription($order_id) || wcs_order_contains_renewal($order_id)));
 	}
 
 	/**
@@ -339,34 +339,33 @@ 
 	 * @param  object $prepared_source
 	 * @return array()
 	 */
-	public function generate_payment_request( $order, $prepared_source ) {
-		$settings                          = get_option( 'woocommerce_stripe_settings', array() );
-		$statement_descriptor              = ! empty( $settings['statement_descriptor'] ) ? str_replace( "'", '', $settings['statement_descriptor'] ) : '';
-		$capture                           = ! empty( $settings['capture'] ) && 'yes' === $settings['capture'] ? true : false;
+	public function generate_payment_request($order, $prepared_source) {
+		$settings                          = get_option('woocommerce_stripe_settings', array());
+		$statement_descriptor              = ! empty($settings['statement_descriptor']) ? str_replace("'", '', $settings['statement_descriptor']) : '';
+		$capture                           = ! empty($settings['capture']) && 'yes' === $settings['capture'] ? true : false;
 		$post_data                         = array();
-		$post_data['currency']             = strtolower( WC_Stripe_Helper::is_pre_30() ? $order->get_order_currency() : $order->get_currency() );
-		$post_data['amount']               = WC_Stripe_Helper::get_stripe_amount( $order->get_total(), $post_data['currency'] );
+		$post_data['currency']             = strtolower(WC_Stripe_Helper::is_pre_30() ? $order->get_order_currency() : $order->get_currency());
+		$post_data['amount']               = WC_Stripe_Helper::get_stripe_amount($order->get_total(), $post_data['currency']);
 		/* translators: 1) blog name 2) order number */
-		$post_data['description']          = sprintf( __( '%1$s - Order %2$s', 'woocommerce-gateway-stripe' ), wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ), $order->get_order_number() );
+		$post_data['description']          = sprintf(__('%1$s - Order %2$s', 'woocommerce-gateway-stripe'), wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES), $order->get_order_number());
 		$billing_email      = WC_Stripe_Helper::is_pre_30() ? $order->billing_email : $order->get_billing_email();
 		$billing_first_name = WC_Stripe_Helper::is_pre_30() ? $order->billing_first_name : $order->get_billing_first_name();
 		$billing_last_name  = WC_Stripe_Helper::is_pre_30() ? $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;
 		}
 
-		switch ( WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method() ) {
-			case 'stripe':
-				if ( ! empty( $statement_descriptor ) ) {
-					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor( $statement_descriptor );
+		switch (WC_Stripe_Helper::is_pre_30() ? $order->payment_method : $order->get_payment_method()) {
+			case 'stripe' : if ( ! empty($statement_descriptor)) {
+					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor($statement_descriptor);
 				}
 
 				$post_data['capture'] = $capture ? 'true' : 'false';
 				break;
 			case 'stripe_sepa':
-				if ( ! empty( $statement_descriptor ) ) {
-					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor( $statement_descriptor );
+				if ( ! empty($statement_descriptor)) {
+					$post_data['statement_descriptor'] = WC_Stripe_Helper::clean_statement_descriptor($statement_descriptor);
 				}
 				break;
 		}
@@ -374,25 +373,25 @@ 
 		$post_data['expand[]'] = 'balance_transaction';
 
 		$metadata = array(
-			__( 'customer_name', 'woocommerce-gateway-stripe' ) => sanitize_text_field( $billing_first_name ) . ' ' . sanitize_text_field( $billing_last_name ),
-			__( 'customer_email', 'woocommerce-gateway-stripe' ) => sanitize_email( $billing_email ),
+			__('customer_name', 'woocommerce-gateway-stripe') => sanitize_text_field($billing_first_name) . ' ' . sanitize_text_field($billing_last_name),
+			__('customer_email', 'woocommerce-gateway-stripe') => sanitize_email($billing_email),
 			'order_id' => $order->get_order_number(),
 		);
 
-		if ( $this->has_subscription( WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id() ) ) {
+		if ($this->has_subscription(WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id())) {
 			$metadata += array(
 				'payment_type' => 'recurring',
-				'site_url'     => esc_url( get_site_url() ),
+				'site_url'     => esc_url(get_site_url()),
 			);
 		}
 
-		$post_data['metadata'] = apply_filters( 'wc_stripe_payment_metadata', $metadata, $order, $prepared_source );
+		$post_data['metadata'] = apply_filters('wc_stripe_payment_metadata', $metadata, $order, $prepared_source);
 
-		if ( $prepared_source->customer ) {
+		if ($prepared_source->customer) {
 			$post_data['customer'] = $prepared_source->customer;
 		}
 
-		if ( $prepared_source->source ) {
+		if ($prepared_source->source) {
 			$post_data['source'] = $prepared_source->source;
 		}
 
@@ -404,83 +403,83 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_payment_request', $post_data, $order, $prepared_source );
+		return apply_filters('wc_stripe_generate_payment_request', $post_data, $order, $prepared_source);
 	}
 
 	/**
 	 * Store extra meta data for an order from a Stripe Response.
 	 */
-	public function process_response( $response, $order ) {
-		WC_Stripe_Logger::log( 'Processing response: ' . print_r( $response, true ) );
+	public function process_response($response, $order) {
+		WC_Stripe_Logger::log('Processing response: ' . print_r($response, true));
 
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		$captured = ( isset( $response->captured ) && $response->captured ) ? 'yes' : 'no';
+		$captured = (isset($response->captured) && $response->captured) ? 'yes' : 'no';
 
 		// Store charge data.
-		WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_stripe_charge_captured', $captured ) : $order->update_meta_data( '_stripe_charge_captured', $captured );
+		WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_stripe_charge_captured', $captured) : $order->update_meta_data('_stripe_charge_captured', $captured);
 
 		// 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_Helper::format_balance_fee( $response->balance_transaction, 'fee' ) : 0;
-			$net = ! empty( $response->balance_transaction->net ) ? WC_Stripe_Helper::format_balance_fee( $response->balance_transaction, 'net' ) : 0;
-			WC_Stripe_Helper::update_stripe_fee( $order, $fee );
-			WC_Stripe_Helper::update_stripe_net( $order, $net );
+			$fee = ! empty($response->balance_transaction->fee) ? WC_Stripe_Helper::format_balance_fee($response->balance_transaction, 'fee') : 0;
+			$net = ! empty($response->balance_transaction->net) ? WC_Stripe_Helper::format_balance_fee($response->balance_transaction, 'net') : 0;
+			WC_Stripe_Helper::update_stripe_fee($order, $fee);
+			WC_Stripe_Helper::update_stripe_net($order, $net);
 
 			// Store currency stripe.
-			$currency = ! empty( $response->balance_transaction->currency ) ? strtoupper( $response->balance_transaction->currency ) : null;
-			WC_Stripe_Helper::update_stripe_currency( $order, $currency );
+			$currency = ! empty($response->balance_transaction->currency) ? strtoupper($response->balance_transaction->currency) : null;
+			WC_Stripe_Helper::update_stripe_currency($order, $currency);
 		}
 
-		if ( 'yes' === $captured ) {
+		if ('yes' === $captured) {
 			/**
 			 * Charge can be captured but in a pending state. Payment methods
 			 * that are asynchronous may take couple days to clear. Webhook will
 			 * take care of the status changes.
 			 */
-			if ( 'pending' === $response->status ) {
-				$order_stock_reduced = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_order_stock_reduced', true ) : $order->get_meta( '_order_stock_reduced', true );
+			if ('pending' === $response->status) {
+				$order_stock_reduced = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_order_stock_reduced', true) : $order->get_meta('_order_stock_reduced', true);
 
-				if ( ! $order_stock_reduced ) {
-					WC_Stripe_Helper::is_pre_30() ? $order->reduce_order_stock() : wc_reduce_stock_levels( $order_id );
+				if ( ! $order_stock_reduced) {
+					WC_Stripe_Helper::is_pre_30() ? $order->reduce_order_stock() : wc_reduce_stock_levels($order_id);
 				}
 
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_transaction_id', $response->id ) : $order->set_transaction_id( $response->id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_transaction_id', $response->id) : $order->set_transaction_id($response->id);
 				/* translators: transaction id */
-				$order->update_status( 'on-hold', sprintf( __( 'Stripe charge awaiting payment: %s.', 'woocommerce-gateway-stripe' ), $response->id ) );
+				$order->update_status('on-hold', sprintf(__('Stripe charge awaiting payment: %s.', 'woocommerce-gateway-stripe'), $response->id));
 			}
 
-			if ( 'succeeded' === $response->status ) {
-				$order->payment_complete( $response->id );
+			if ('succeeded' === $response->status) {
+				$order->payment_complete($response->id);
 
 				/* translators: transaction id */
-				$message = sprintf( __( 'Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe' ), $response->id );
-				$order->add_order_note( $message );
+				$message = sprintf(__('Stripe charge complete (Charge ID: %s)', 'woocommerce-gateway-stripe'), $response->id);
+				$order->add_order_note($message);
 			}
 
-			if ( 'failed' === $response->status ) {
-				$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-				$order->add_order_note( $localized_message );
-				throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+			if ('failed' === $response->status) {
+				$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+				$order->add_order_note($localized_message);
+				throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 			}
 		} else {
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_transaction_id', $response->id ) : $order->set_transaction_id( $response->id );
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_transaction_id', $response->id) : $order->set_transaction_id($response->id);
 
-			if ( $order->has_status( array( 'pending', 'failed' ) ) ) {
-				WC_Stripe_Helper::is_pre_30() ? $order->reduce_order_stock() : wc_reduce_stock_levels( $order_id );
+			if ($order->has_status(array('pending', 'failed'))) {
+				WC_Stripe_Helper::is_pre_30() ? $order->reduce_order_stock() : wc_reduce_stock_levels($order_id);
 			}
 
 			/* translators: transaction id */
-			$order->update_status( 'on-hold', sprintf( __( 'Stripe charge authorized (Charge ID: %s). Process order to take payment, or cancel to remove the pre-authorization.', 'woocommerce-gateway-stripe' ), $response->id ) );
+			$order->update_status('on-hold', sprintf(__('Stripe charge authorized (Charge ID: %s). Process order to take payment, or cancel to remove the pre-authorization.', 'woocommerce-gateway-stripe'), $response->id));
 		}
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 
-		do_action( 'wc_gateway_stripe_process_response', $response, $order );
+		do_action('wc_gateway_stripe_process_response', $response, $order);
 
 		return $response;
 	}
@@ -493,10 +492,10 @@ 
 	 * @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);
 		}
 	}
 
@@ -508,7 +507,7 @@ 
 	 * @param object $order
 	 * @return object $details
 	 */
-	public function get_owner_details( $order ) {
+	public function get_owner_details($order) {
 		$billing_first_name = WC_Stripe_Helper::is_pre_30() ? $order->billing_first_name : $order->get_billing_first_name();
 		$billing_last_name  = WC_Stripe_Helper::is_pre_30() ? $order->billing_last_name : $order->get_billing_last_name();
 
@@ -518,15 +517,15 @@ 
 		$email = WC_Stripe_Helper::is_pre_30() ? $order->billing_email : $order->get_billing_email();
 		$phone = WC_Stripe_Helper::is_pre_30() ? $order->billing_phone : $order->get_billing_phone();
 
-		if ( ! empty( $phone ) ) {
+		if ( ! empty($phone)) {
 			$details['phone'] = $phone;
 		}
 
-		if ( ! empty( $name ) ) {
+		if ( ! empty($name)) {
 			$details['name'] = $name;
 		}
 
-		if ( ! empty( $email ) ) {
+		if ( ! empty($email)) {
 			$details['email'] = $email;
 		}
 
@@ -537,7 +536,7 @@ 
 		$details['address']['postal_code'] = WC_Stripe_Helper::is_pre_30() ? $order->billing_postcode : $order->get_billing_postcode();
 		$details['address']['country']     = WC_Stripe_Helper::is_pre_30() ? $order->billing_country : $order->get_billing_country();
 
-		return (object) apply_filters( 'wc_stripe_owner_details', $details, $order );
+		return (object) apply_filters('wc_stripe_owner_details', $details, $order);
 	}
 
 	/**
@@ -546,15 +545,15 @@ 
 	 * @since 4.0.3
 	 * @param string $source_id The source ID to get source object for.
 	 */
-	public function get_source_object( $source_id = '' ) {
-		if ( empty( $source_id ) ) {
+	public function get_source_object($source_id = '') {
+		if (empty($source_id)) {
 			return '';
 		}
 
-		$source_object = WC_Stripe_API::retrieve( 'sources/' . $source_id );
+		$source_object = WC_Stripe_API::retrieve('sources/' . $source_id);
 
-		if ( ! empty( $source_object->error ) ) {
-			throw new WC_Stripe_Exception( print_r( $source_object, true ), $source_object->error->message );
+		if ( ! empty($source_object->error)) {
+			throw new WC_Stripe_Exception(print_r($source_object, true), $source_object->error->message);
 		}
 
 		return $source_object;
@@ -568,12 +567,12 @@ 
 	 * @param object $source_object
 	 * @return bool
 	 */
-	public function is_3ds_required( $source_object ) {
-		return apply_filters( 'wc_stripe_require_3ds', (
-			$source_object && ! empty( $source_object->card ) ) &&
-			( 'card' === $source_object->type && 'required' === $source_object->card->three_d_secure ||
-			( $this->three_d_secure && 'recommended' === $source_object->card->three_d_secure )
-		), $source_object, $this->three_d_secure );
+	public function is_3ds_required($source_object) {
+		return apply_filters('wc_stripe_require_3ds', (
+			$source_object && ! empty($source_object->card) ) &&
+			('card' === $source_object->type && 'required' === $source_object->card->three_d_secure ||
+			($this->three_d_secure && 'recommended' === $source_object->card->three_d_secure)
+		), $source_object, $this->three_d_secure);
 	}
 
 	/**
@@ -583,8 +582,8 @@ 
 	 * @param object $source_object
 	 * @return bool
 	 */
-	public function is_3ds_card( $source_object ) {
-		return ( $source_object && 'three_d_secure' === $source_object->type );
+	public function is_3ds_card($source_object) {
+		return ($source_object && 'three_d_secure' === $source_object->type);
 	}
 
 	/**
@@ -594,8 +593,8 @@ 
 	 * @param object $source_object
 	 * @return bool
 	 */
-	public function is_prepaid_card( $source_object ) {
-		return ( $source_object && 'token' === $source_object->object && 'prepaid' === $source_object->card->funding );
+	public function is_prepaid_card($source_object) {
+		return ($source_object && 'token' === $source_object->object && 'prepaid' === $source_object->card->funding);
 	}
 
 	/**
@@ -605,8 +604,8 @@ 
 	 * @param string $source_id
 	 * @return bool
 	 */
-	public function is_type_legacy_card( $source_id ) {
-		return ( preg_match( '/^card_/', $source_id ) );
+	public function is_type_legacy_card($source_id) {
+		return (preg_match('/^card_/', $source_id));
 	}
 
 	/**
@@ -616,9 +615,9 @@ 
 	 * @return bool
 	 */
 	public function is_using_saved_payment_method() {
-		$payment_method = isset( $_POST['payment_method'] ) ? wc_clean( $_POST['payment_method'] ) : 'stripe';
+		$payment_method = isset($_POST['payment_method']) ? wc_clean($_POST['payment_method']) : 'stripe';
 
-		return ( isset( $_POST[ 'wc-' . $payment_method . '-payment-token' ] ) && 'new' !== $_POST[ 'wc-' . $payment_method . '-payment-token' ] );
+		return (isset($_POST['wc-' . $payment_method . '-payment-token']) && 'new' !== $_POST['wc-' . $payment_method . '-payment-token']);
 	}
 
 	/**
@@ -631,22 +630,22 @@ 
 	 * @param string $return_url
 	 * @return mixed
 	 */
-	public function create_3ds_source( $order, $source_object, $return_url = '' ) {
+	public function create_3ds_source($order, $source_object, $return_url = '') {
 		$currency                    = WC_Stripe_Helper::is_pre_30() ? $order->get_order_currency() : $order->get_currency();
 		$order_id                    = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
-		$return_url                  = empty( $return_url ) ? $this->get_stripe_return_url( $order ) : $return_url;
+		$return_url                  = empty($return_url) ? $this->get_stripe_return_url($order) : $return_url;
 
 		$post_data                   = array();
-		$post_data['amount']         = WC_Stripe_Helper::get_stripe_amount( $order->get_total(), $currency );
-		$post_data['currency']       = strtolower( $currency );
+		$post_data['amount']         = WC_Stripe_Helper::get_stripe_amount($order->get_total(), $currency);
+		$post_data['currency']       = strtolower($currency);
 		$post_data['type']           = 'three_d_secure';
-		$post_data['owner']          = $this->get_owner_details( $order );
-		$post_data['three_d_secure'] = array( 'card' => $source_object->id );
-		$post_data['redirect']       = array( 'return_url' => $return_url );
+		$post_data['owner']          = $this->get_owner_details($order);
+		$post_data['three_d_secure'] = array('card' => $source_object->id);
+		$post_data['redirect']       = array('return_url' => $return_url);
 
-		WC_Stripe_Logger::log( 'Info: Begin creating 3DS source...' );
+		WC_Stripe_Logger::log('Info: Begin creating 3DS source...');
 
-		return WC_Stripe_API::request( apply_filters( 'wc_stripe_3ds_source', $post_data, $order ), 'sources' );
+		return WC_Stripe_API::request(apply_filters('wc_stripe_3ds_source', $post_data, $order), 'sources');
 	}
 
 	/**
@@ -662,61 +661,61 @@ 
 	 * @throws Exception When card was not added or for and invalid card.
 	 * @return object
 	 */
-	public function prepare_source( $user_id, $force_save_source = false ) {
-		$customer           = new WC_Stripe_Customer( $user_id );
+	public function prepare_source($user_id, $force_save_source = false) {
+		$customer           = new WC_Stripe_Customer($user_id);
 		$set_customer       = true;
-		$force_save_source  = apply_filters( 'wc_stripe_force_save_source', $force_save_source, $customer );
+		$force_save_source  = apply_filters('wc_stripe_force_save_source', $force_save_source, $customer);
 		$source_object      = '';
 		$source_id          = '';
 		$wc_token_id        = false;
-		$payment_method     = isset( $_POST['payment_method'] ) ? wc_clean( $_POST['payment_method'] ) : 'stripe';
+		$payment_method     = isset($_POST['payment_method']) ? wc_clean($_POST['payment_method']) : 'stripe';
 		$is_token           = false;
 
 		// New CC info was entered and we have a new source to process.
-		if ( ! empty( $_POST['stripe_source'] ) ) {
-			$source_object = self::get_source_object( wc_clean( $_POST['stripe_source'] ) );
+		if ( ! empty($_POST['stripe_source'])) {
+			$source_object = self::get_source_object(wc_clean($_POST['stripe_source']));
 			$source_id     = $source_object->id;
 
 			// This checks to see if customer opted to save the payment method to file.
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			/**
 			 * This is true if the user wants to store the card to their account.
 			 * Criteria to save to file is they are logged in, they opted to save or product requirements and the source is
 			 * actually reusable. Either that or force_save_source is true.
 			 */
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage ) || $force_save_source ) {
-				$response = $customer->add_source( $source_object->id );
+			if (($user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage) || $force_save_source) {
+				$response = $customer->add_source($source_object->id);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $response->error->message );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $response->error->message);
 				}
 			}
-		} elseif ( $this->is_using_saved_payment_method() ) {
+		} elseif ($this->is_using_saved_payment_method()) {
 			// Use an existing token, and then process the payment.
-			$wc_token_id = wc_clean( $_POST[ 'wc-' . $payment_method . '-payment-token' ] );
-			$wc_token    = WC_Payment_Tokens::get( $wc_token_id );
+			$wc_token_id = wc_clean($_POST['wc-' . $payment_method . '-payment-token']);
+			$wc_token    = WC_Payment_Tokens::get($wc_token_id);
 
-			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id() ) {
-				WC()->session->set( 'refresh_totals', true );
-				throw new WC_Stripe_Exception( 'Invalid payment method', __( 'Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe' ) );
+			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id()) {
+				WC()->session->set('refresh_totals', true);
+				throw new WC_Stripe_Exception('Invalid payment method', __('Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe'));
 			}
 
 			$source_id = $wc_token->get_token();
 
-			if ( $this->is_type_legacy_card( $source_id ) ) {
+			if ($this->is_type_legacy_card($source_id)) {
 				$is_token = true;
 			}
-		} elseif ( isset( $_POST['stripe_token'] ) && 'new' !== $_POST['stripe_token'] ) {
-			$stripe_token     = wc_clean( $_POST['stripe_token'] );
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+		} elseif (isset($_POST['stripe_token']) && 'new' !== $_POST['stripe_token']) {
+			$stripe_token     = wc_clean($_POST['stripe_token']);
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			// This is true if the user wants to store the card to their account.
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card ) || $force_save_source ) {
-				$response = $customer->add_source( $stripe_token );
+			if (($user_id && $this->saved_cards && $maybe_saved_card) || $force_save_source) {
+				$response = $customer->add_source($stripe_token);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $response->error->message );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $response->error->message);
 				}
 			} else {
 				$set_customer = false;
@@ -725,14 +724,14 @@ 
 			}
 		}
 
-		if ( ! $set_customer ) {
+		if ( ! $set_customer) {
 			$customer_id = false;
 		} else {
 			$customer_id = $customer->get_id() ? $customer->get_id() : false;
 		}
 
-		if ( empty( $source_object ) && ! $is_token ) {
-			$source_object = self::get_source_object( $source_id );
+		if (empty($source_object) && ! $is_token) {
+			$source_object = self::get_source_object($source_id);
 		}
 
 		return (object) array(
@@ -756,39 +755,39 @@ 
 	 * @param object $order
 	 * @return object
 	 */
-	public function prepare_order_source( $order = null ) {
+	public function prepare_order_source($order = null) {
 		$stripe_customer = new WC_Stripe_Customer();
 		$stripe_source   = false;
 		$token_id        = false;
 		$source_object   = false;
 
-		if ( $order ) {
+		if ($order) {
 			$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-			$stripe_customer_id = get_post_meta( $order_id, '_stripe_customer_id', true );
+			$stripe_customer_id = get_post_meta($order_id, '_stripe_customer_id', true);
 
-			if ( $stripe_customer_id ) {
-				$stripe_customer->set_id( $stripe_customer_id );
+			if ($stripe_customer_id) {
+				$stripe_customer->set_id($stripe_customer_id);
 			}
 
-			$source_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_stripe_source_id', true ) : $order->get_meta( '_stripe_source_id', true );
+			$source_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_stripe_source_id', true) : $order->get_meta('_stripe_source_id', true);
 
 			// Since 4.0.0, we changed card to source so we need to account for that.
-			if ( empty( $source_id ) ) {
-				$source_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta( $order_id, '_stripe_card_id', true ) : $order->get_meta( '_stripe_card_id', true );
+			if (empty($source_id)) {
+				$source_id = WC_Stripe_Helper::is_pre_30() ? get_post_meta($order_id, '_stripe_card_id', true) : $order->get_meta('_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_stripe_source_id', $source_id ) : $order->update_meta_data( '_stripe_source_id', $source_id );
+				WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_stripe_source_id', $source_id) : $order->update_meta_data('_stripe_source_id', $source_id);
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
 
-			if ( $source_id ) {
+			if ($source_id) {
 				$stripe_source = $source_id;
-				$source_object = WC_Stripe_API::retrieve( 'sources/' . $source_id );
-			} elseif ( apply_filters( 'wc_stripe_use_default_customer_source', true ) ) {
+				$source_object = WC_Stripe_API::retrieve('sources/' . $source_id);
+			} elseif (apply_filters('wc_stripe_use_default_customer_source', true)) {
 				/*
 				 * We can attempt to charge the customer's default source
 				 * by sending empty source id.
@@ -813,27 +812,27 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $source Source information.
 	 */
-	public function save_source_to_order( $order, $source ) {
+	public function save_source_to_order($order, $source) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
 		// Store source in the order.
-		if ( $source->customer ) {
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				update_post_meta( $order_id, '_stripe_customer_id', $source->customer );
+		if ($source->customer) {
+			if (WC_Stripe_Helper::is_pre_30()) {
+				update_post_meta($order_id, '_stripe_customer_id', $source->customer);
 			} else {
-				$order->update_meta_data( '_stripe_customer_id', $source->customer );
+				$order->update_meta_data('_stripe_customer_id', $source->customer);
 			}
 		}
 
-		if ( $source->source ) {
-			if ( WC_Stripe_Helper::is_pre_30() ) {
-				update_post_meta( $order_id, '_stripe_source_id', $source->source );
+		if ($source->source) {
+			if (WC_Stripe_Helper::is_pre_30()) {
+				update_post_meta($order_id, '_stripe_source_id', $source->source);
 			} else {
-				$order->update_meta_data( '_stripe_source_id', $source->source );
+				$order->update_meta_data('_stripe_source_id', $source->source);
 			}
 		}
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -847,35 +846,35 @@ 
 	 * @param object $order The order object
 	 * @param int $balance_transaction_id
 	 */
-	public function update_fees( $order, $balance_transaction_id ) {
+	public function update_fees($order, $balance_transaction_id) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		$balance_transaction = WC_Stripe_API::retrieve( 'balance/history/' . $balance_transaction_id );
+		$balance_transaction = WC_Stripe_API::retrieve('balance/history/' . $balance_transaction_id);
 
-		if ( empty( $balance_transaction->error ) ) {
-			if ( isset( $balance_transaction ) && isset( $balance_transaction->fee ) ) {
+		if (empty($balance_transaction->error)) {
+			if (isset($balance_transaction) && isset($balance_transaction->fee)) {
 				// Fees and Net needs to both come from Stripe to be accurate as the returned
 				// values are in the local currency of the Stripe account, not from WC.
-				$fee_refund = ! empty( $balance_transaction->fee ) ? WC_Stripe_Helper::format_balance_fee( $balance_transaction, 'fee' ) : 0;
-				$net_refund = ! empty( $balance_transaction->net ) ? WC_Stripe_Helper::format_balance_fee( $balance_transaction, 'net' ) : 0;
+				$fee_refund = ! empty($balance_transaction->fee) ? WC_Stripe_Helper::format_balance_fee($balance_transaction, 'fee') : 0;
+				$net_refund = ! empty($balance_transaction->net) ? WC_Stripe_Helper::format_balance_fee($balance_transaction, 'net') : 0;
 
 				// Current data fee & net.
-				$fee_current = WC_Stripe_Helper::get_stripe_fee( $order );
-				$net_current = WC_Stripe_Helper::get_stripe_net( $order );
+				$fee_current = WC_Stripe_Helper::get_stripe_fee($order);
+				$net_current = WC_Stripe_Helper::get_stripe_net($order);
 
 				// Calculation.
 				$fee = (float) $fee_current + (float) $fee_refund;
 				$net = (float) $net_current + (float) $net_refund;
 
-				WC_Stripe_Helper::update_stripe_fee( $order, $fee );
-				WC_Stripe_Helper::update_stripe_net( $order, $net );
+				WC_Stripe_Helper::update_stripe_fee($order, $fee);
+				WC_Stripe_Helper::update_stripe_net($order, $net);
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
 		} else {
-			WC_Stripe_Logger::log( "Unable to update fees/net meta for order: {$order_id}" );
+			WC_Stripe_Logger::log("Unable to update fees/net meta for order: {$order_id}");
 		}
 	}
 
@@ -886,20 +885,20 @@ 
 	 * @param object $order The order object
 	 * @param int $balance_transaction_id
 	 */
-	public function update_currency( $order, $balance_transaction_id ) {
+	public function update_currency($order, $balance_transaction_id) {
 		$order_id = WC_Stripe_Helper::is_pre_30() ? $order->id : $order->get_id();
 
-		$balance_transaction = WC_Stripe_API::retrieve( 'balance/history/' . $balance_transaction_id );
+		$balance_transaction = WC_Stripe_API::retrieve('balance/history/' . $balance_transaction_id);
 
-		if ( empty( $balance_transaction->error ) ) {
-			$currency = ! empty( $balance_transaction->currency ) ? strtoupper( $balance_transaction->currency ) : null;
-			WC_Stripe_Helper::update_stripe_currency( $order, $currency );
+		if (empty($balance_transaction->error)) {
+			$currency = ! empty($balance_transaction->currency) ? strtoupper($balance_transaction->currency) : null;
+			WC_Stripe_Helper::update_stripe_currency($order, $currency);
 
-			if ( is_callable( array( $order, 'save' ) ) ) {
+			if (is_callable(array($order, 'save'))) {
 				$order->save();
 			}
 		} else {
-			WC_Stripe_Logger::log( "Unable to update currency meta for order: {$order_id}" );
+			WC_Stripe_Logger::log("Unable to update currency meta for order: {$order_id}");
 		}
 	}
 
@@ -912,33 +911,33 @@ 
 	 * @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;
 		}
 
 		$request = array();
 
-		if ( WC_Stripe_Helper::is_pre_30() ) {
-			$order_currency = get_post_meta( $order_id, '_order_currency', true );
-			$captured       = get_post_meta( $order_id, '_stripe_charge_captured', true );
+		if (WC_Stripe_Helper::is_pre_30()) {
+			$order_currency = get_post_meta($order_id, '_order_currency', true);
+			$captured       = get_post_meta($order_id, '_stripe_charge_captured', true);
 		} else {
 			$order_currency = $order->get_currency();
-			$captured       = $order->get_meta( '_stripe_charge_captured', true );
+			$captured       = $order->get_meta('_stripe_charge_captured', true);
 		}
 
-		if ( ! is_null( $amount ) ) {
-			$request['amount'] = WC_Stripe_Helper::get_stripe_amount( $amount, $order_currency );
+		if ( ! is_null($amount)) {
+			$request['amount'] = WC_Stripe_Helper::get_stripe_amount($amount, $order_currency);
 		}
 
 		// If order is only authorized, don't pass amount.
-		if ( 'yes' !== $captured ) {
-			unset( $request['amount'] );
+		if ('yes' !== $captured) {
+			unset($request['amount']);
 		}
 
-		if ( $reason ) {
+		if ($reason) {
 			$request['metadata'] = array(
 				'reason' => $reason,
 			);
@@ -946,35 +945,35 @@ 
 
 		$request['charge'] = $order->get_transaction_id();
 
-		WC_Stripe_Logger::log( "Info: Beginning refund for order {$order->get_transaction_id()} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Beginning refund for order {$order->get_transaction_id()} for the amount of {$amount}");
 
-		$request = apply_filters( 'wc_stripe_refund_request', $request, $order );
+		$request = apply_filters('wc_stripe_refund_request', $request, $order);
 
-		$response = WC_Stripe_API::request( $request, 'refunds' );
+		$response = WC_Stripe_API::request($request, 'refunds');
 
-		if ( ! empty( $response->error ) ) {
-			WC_Stripe_Logger::log( 'Error: ' . $response->error->message );
+		if ( ! empty($response->error)) {
+			WC_Stripe_Logger::log('Error: ' . $response->error->message);
 
 			return $response;
 
-		} elseif ( ! empty( $response->id ) ) {
-			WC_Stripe_Helper::is_pre_30() ? update_post_meta( $order_id, '_stripe_refund_id', $response->id ) : $order->update_meta_data( '_stripe_refund_id', $response->id );
+		} elseif ( ! empty($response->id)) {
+			WC_Stripe_Helper::is_pre_30() ? update_post_meta($order_id, '_stripe_refund_id', $response->id) : $order->update_meta_data('_stripe_refund_id', $response->id);
 
-			$amount = wc_price( $response->amount / 100 );
+			$amount = wc_price($response->amount / 100);
 
-			if ( in_array( strtolower( WC_Stripe_Helper::is_pre_30() ? $order->get_order_currency() : $order->get_currency() ), WC_Stripe_Helper::no_decimal_currencies() ) ) {
-				$amount = wc_price( $response->amount );
+			if (in_array(strtolower(WC_Stripe_Helper::is_pre_30() ? $order->get_order_currency() : $order->get_currency()), WC_Stripe_Helper::no_decimal_currencies())) {
+				$amount = wc_price($response->amount);
 			}
 
-			if ( isset( $response->balance_transaction ) ) {
-				$this->update_fees( $order, $response->balance_transaction );
+			if (isset($response->balance_transaction)) {
+				$this->update_fees($order, $response->balance_transaction);
 			}
 
 			/* translators: 1) dollar amount 2) transaction id 3) refund message */
-			$refund_message = ( isset( $captured ) && 'yes' === $captured ) ? sprintf( __( 'Refunded %1$s - Refund ID: %2$s - Reason: %3$s', 'woocommerce-gateway-stripe' ), $amount, $response->id, $reason ) : __( 'Pre-Authorization Released', 'woocommerce-gateway-stripe' );
+			$refund_message = (isset($captured) && 'yes' === $captured) ? sprintf(__('Refunded %1$s - Refund ID: %2$s - Reason: %3$s', 'woocommerce-gateway-stripe'), $amount, $response->id, $reason) : __('Pre-Authorization Released', 'woocommerce-gateway-stripe');
 
-			$order->add_order_note( $refund_message );
-			WC_Stripe_Logger::log( 'Success: ' . html_entity_decode( wp_strip_all_tags( $refund_message ) ) );
+			$order->add_order_note($refund_message);
+			WC_Stripe_Logger::log('Success: ' . html_entity_decode(wp_strip_all_tags($refund_message)));
 
 			return true;
 		}
@@ -989,44 +988,44 @@ 
 	 */
 	public function add_payment_method() {
 		$error     = false;
-		$error_msg = __( 'There was a problem adding the card.', 'woocommerce-gateway-stripe' );
+		$error_msg = __('There was a problem adding the card.', 'woocommerce-gateway-stripe');
 		$source_id = '';
 
-		if ( empty( $_POST['stripe_source'] ) && empty( $_POST['stripe_token'] ) || ! is_user_logged_in() ) {
+		if (empty($_POST['stripe_source']) && empty($_POST['stripe_token']) || ! is_user_logged_in()) {
 			$error = true;
 		}
 
-		$stripe_customer = new WC_Stripe_Customer( get_current_user_id() );
+		$stripe_customer = new WC_Stripe_Customer(get_current_user_id());
 
-		$source = ! empty( $_POST['stripe_source'] ) ? wc_clean( $_POST['stripe_source'] ) : '';
+		$source = ! empty($_POST['stripe_source']) ? wc_clean($_POST['stripe_source']) : '';
 
-		$source_object = WC_Stripe_API::retrieve( 'sources/' . $source );
+		$source_object = WC_Stripe_API::retrieve('sources/' . $source);
 
-		if ( isset( $source_object ) ) {
-			if ( ! empty( $source_object->error ) ) {
+		if (isset($source_object)) {
+			if ( ! empty($source_object->error)) {
 				$error = true;
 			}
 
 			$source_id = $source_object->id;
-		} elseif ( isset( $_POST['stripe_token'] ) ) {
-			$source_id = wc_clean( $_POST['stripe_token'] );
+		} elseif (isset($_POST['stripe_token'])) {
+			$source_id = wc_clean($_POST['stripe_token']);
 		}
 
-		$response = $stripe_customer->add_source( $source_id );
+		$response = $stripe_customer->add_source($source_id);
 
-		if ( ! $response || is_wp_error( $response ) || ! empty( $response->error ) ) {
+		if ( ! $response || is_wp_error($response) || ! empty($response->error)) {
 			$error = true;
 		}
 
-		if ( $error ) {
-			wc_add_notice( $error_msg, 'error' );
-			WC_Stripe_Logger::log( 'Add payment method Error: ' . $error_msg );
+		if ($error) {
+			wc_add_notice($error_msg, 'error');
+			WC_Stripe_Logger::log('Add payment method Error: ' . $error_msg);
 			return;
 		}
 
 		return array(
 			'result'   => 'success',
-			'redirect' => wc_get_endpoint_url( 'payment-methods' ),
+			'redirect' => wc_get_endpoint_url('payment-methods'),
 		);
 	}
 
@@ -1043,10 +1042,10 @@ 
 		 * Stripe expects Norwegian to only be passed NO.
 		 * But WP has different dialects.
 		 */
-		if ( 'NO' === substr( $locale, 3, 2 ) ) {
+		if ('NO' === substr($locale, 3, 2)) {
 			$locale = 'no';
 		} else {
-			$locale = substr( get_locale(), 0, 2 );
+			$locale = substr(get_locale(), 0, 2);
 		}
 
 		return $locale;
@@ -1060,9 +1059,9 @@ 
 	 * @param string $idempotency_key
 	 * @param array $request
 	 */
-	public function change_idempotency_key( $idempotency_key, $request ) {
-		$customer = ! empty( $request['customer'] ) ? $request['customer'] : '';
-		$source   = ! empty( $request['source'] ) ? $request['source'] : $customer;
+	public function change_idempotency_key($idempotency_key, $request) {
+		$customer = ! empty($request['customer']) ? $request['customer'] : '';
+		$source   = ! empty($request['source']) ? $request['source'] : $customer;
 		$count    = $this->retry_interval;
 
 		return $request['metadata']['order_id'] . '-' . $count . '-' . $source;
@@ -1076,8 +1075,8 @@ 
 	 * @since 4.0.6
 	 * @param array $headers
 	 */
-	public function is_original_request( $headers ) {
-		if ( $headers['original-request'] === $headers['request-id'] ) {
+	public function is_original_request($headers) {
+		if ($headers['original-request'] === $headers['request-id']) {
 			return true;
 		}
 

includes/class-wc-gateway-stripe.php

Spacing +260 added lines, -260 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -113,9 +113,9 @@ 
 	public function __construct() {
 		$this->retry_interval     = 1;
 		$this->id                 = 'stripe';
-		$this->method_title       = __( 'Stripe', 'woocommerce-gateway-stripe' );
+		$this->method_title       = __('Stripe', 'woocommerce-gateway-stripe');
 		/* translators: 1) link to Stripe register page 2) link to Stripe api keys page */
-		$this->method_description = sprintf( __( 'Stripe works by adding payment fields on the checkout and then sending the details to Stripe for verification. <a href="%1$s" target="_blank">Sign up</a> for a Stripe account, and <a href="%2$s" target="_blank">get your Stripe account keys</a>.', 'woocommerce-gateway-stripe' ), 'https://dashboard.stripe.com/register', 'https://dashboard.stripe.com/account/apikeys' );
+		$this->method_description = sprintf(__('Stripe works by adding payment fields on the checkout and then sending the details to Stripe for verification. <a href="%1$s" target="_blank">Sign up</a> for a Stripe account, and <a href="%2$s" target="_blank">get your Stripe account keys</a>.', 'woocommerce-gateway-stripe'), 'https://dashboard.stripe.com/register', 'https://dashboard.stripe.com/account/apikeys');
 		$this->has_fields         = true;
 		$this->supports           = array(
 			'products',
@@ -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->inline_cc_form              = 'yes' === $this->get_option( 'inline_cc_form' );
-		$this->capture                     = 'yes' === $this->get_option( 'capture', 'yes' );
-		$this->statement_descriptor        = WC_Stripe_Helper::clean_statement_descriptor( $this->get_option( 'statement_descriptor' ) );
-		$this->three_d_secure              = 'yes' === $this->get_option( 'three_d_secure' );
-		$this->stripe_checkout             = 'yes' === $this->get_option( 'stripe_checkout' );
-		$this->stripe_checkout_image       = $this->get_option( 'stripe_checkout_image', '' );
-		$this->stripe_checkout_description = $this->get_option( 'stripe_checkout_description' );
-		$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->payment_request             = 'yes' === $this->get_option( 'payment_request', 'yes' );
-
-		if ( $this->stripe_checkout ) {
-			$this->order_button_text = __( 'Continue to payment', 'woocommerce-gateway-stripe' );
+		$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->inline_cc_form              = 'yes' === $this->get_option('inline_cc_form');
+		$this->capture                     = 'yes' === $this->get_option('capture', 'yes');
+		$this->statement_descriptor        = WC_Stripe_Helper::clean_statement_descriptor($this->get_option('statement_descriptor'));
+		$this->three_d_secure              = 'yes' === $this->get_option('three_d_secure');
+		$this->stripe_checkout             = 'yes' === $this->get_option('stripe_checkout');
+		$this->stripe_checkout_image       = $this->get_option('stripe_checkout_image', '');
+		$this->stripe_checkout_description = $this->get_option('stripe_checkout_description');
+		$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->payment_request             = 'yes' === $this->get_option('payment_request', 'yes');
+
+		if ($this->stripe_checkout) {
+			$this->order_button_text = __('Continue to payment', 'woocommerce-gateway-stripe');
 		}
 
-		WC_Stripe_API::set_secret_key( $this->secret_key );
+		WC_Stripe_API::set_secret_key($this->secret_key);
 
 		// Hooks.
-		add_action( 'wp_enqueue_scripts', array( $this, 'payment_scripts' ) );
-		add_action( 'admin_enqueue_scripts', array( $this, 'admin_scripts' ) );
-		add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
-		add_action( 'woocommerce_admin_order_totals_after_total', array( $this, 'display_order_fee' ) );
-		add_action( 'woocommerce_admin_order_totals_after_total', array( $this, 'display_order_payout' ), 20 );
-		add_action( 'woocommerce_customer_save_address', array( $this, 'show_update_card_notice' ), 10, 2 );
-		add_action( 'woocommerce_receipt_stripe', array( $this, 'stripe_checkout_receipt_page' ) );
-		add_action( 'woocommerce_api_' . strtolower( get_class( $this ) ), array( $this, 'stripe_checkout_return_handler' ) );
-
-		if ( WC_Stripe_Helper::is_pre_orders_exists() ) {
+		add_action('wp_enqueue_scripts', array($this, 'payment_scripts'));
+		add_action('admin_enqueue_scripts', array($this, 'admin_scripts'));
+		add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this, 'process_admin_options'));
+		add_action('woocommerce_admin_order_totals_after_total', array($this, 'display_order_fee'));
+		add_action('woocommerce_admin_order_totals_after_total', array($this, 'display_order_payout'), 20);
+		add_action('woocommerce_customer_save_address', array($this, 'show_update_card_notice'), 10, 2);
+		add_action('woocommerce_receipt_stripe', array($this, 'stripe_checkout_receipt_page'));
+		add_action('woocommerce_api_' . strtolower(get_class($this)), array($this, 'stripe_checkout_return_handler'));
+
+		if (WC_Stripe_Helper::is_pre_orders_exists()) {
 			$this->pre_orders = new WC_Stripe_Pre_Orders_Compat();
 
-			add_action( 'wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array( $this->pre_orders, 'process_pre_order_release_payment' ) );
+			add_action('wc_pre_orders_process_pre_order_completion_payment_' . $this->id, array($this->pre_orders, 'process_pre_order_release_payment'));
 		}
 	}
 
@@ -188,7 +188,7 @@ 
 	 * @return bool
 	 */
 	public function are_keys_set() {
-		if ( empty( $this->secret_key ) || empty( $this->publishable_key ) ) {
+		if (empty($this->secret_key) || empty($this->publishable_key)) {
 			return false;
 		}
 
@@ -201,7 +201,7 @@ 
 	 * @since 4.0.2
 	 */
 	public function is_available() {
-		if ( is_add_payment_method_page() && ! $this->saved_cards ) {
+		if (is_add_payment_method_page() && ! $this->saved_cards) {
 			return false;
 		}
 
@@ -215,13 +215,13 @@ 
 	 * @param int $user_id
 	 * @param array $load_address
 	 */
-	public function show_update_card_notice( $user_id, $load_address ) {
-		if ( ! $this->saved_cards || ! WC_Stripe_Payment_Tokens::customer_has_saved_methods( $user_id ) || 'billing' !== $load_address ) {
+	public function show_update_card_notice($user_id, $load_address) {
+		if ( ! $this->saved_cards || ! WC_Stripe_Payment_Tokens::customer_has_saved_methods($user_id) || 'billing' !== $load_address) {
 			return;
 		}
 
 		/* translators: 1) Opening anchor tag 2) closing anchor tag */
-		wc_add_notice( sprintf( __( 'If your billing address has been changed for saved payment methods, be sure to remove any %1$ssaved payment methods%2$s on file and re-add them.', 'woocommerce-gateway-stripe' ), '<a href="' . esc_url( wc_get_endpoint_url( 'payment-methods' ) ) . '" class="wc-stripe-update-card-notice" style="text-decoration:underline;">', '</a>' ), 'notice' );
+		wc_add_notice(sprintf(__('If your billing address has been changed for saved payment methods, be sure to remove any %1$ssaved payment methods%2$s on file and re-add them.', 'woocommerce-gateway-stripe'), '<a href="' . esc_url(wc_get_endpoint_url('payment-methods')) . '" class="wc-stripe-update-card-notice" style="text-decoration:underline;">', '</a>'), 'notice');
 	}
 
 	/**
@@ -240,20 +240,20 @@ 
 		$icons_str .= $icons['amex'];
 		$icons_str .= $icons['mastercard'];
 
-		if ( 'USD' === get_woocommerce_currency() ) {
+		if ('USD' === get_woocommerce_currency()) {
 			$icons_str .= $icons['discover'];
 			$icons_str .= $icons['jcb'];
 			$icons_str .= $icons['diners'];
 		}
 
-		return apply_filters( 'woocommerce_gateway_icon', $icons_str, $this->id );
+		return apply_filters('woocommerce_gateway_icon', $icons_str, $this->id);
 	}
 
 	/**
 	 * Initialise Gateway Settings Form Fields
 	 */
 	public function init_form_fields() {
-		$this->form_fields = require( dirname( __FILE__ ) . '/admin/stripe-settings.php' );
+		$this->form_fields = require(dirname(__FILE__) . '/admin/stripe-settings.php');
 	}
 
 	/**
@@ -261,33 +261,33 @@ 
 	 */
 	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;
 		$user_email           = '';
-		$description          = ! empty( $this->get_description() ) ? $this->get_description() : '';
+		$description          = ! empty($this->get_description()) ? $this->get_description() : '';
 		$firstname            = '';
 		$lastname             = '';
 
 		// 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();
 			$user_email = WC_Stripe_Helper::is_pre_30() ? $order->billing_email : $order->get_billing_email();
 		} else {
-			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;
 			}
 		}
 
-		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');
 			$total           = '';
 			$firstname       = $user->user_firstname;
 			$lastname        = $user->user_lastname;
 
-		} elseif ( function_exists( 'wcs_order_contains_subscription' ) && isset( $_GET['change_payment_method'] ) ) {
-			$pay_button_text = __( 'Change Payment Method', 'woocommerce-gateway-stripe' );
+		} elseif (function_exists('wcs_order_contains_subscription') && isset($_GET['change_payment_method'])) {
+			$pay_button_text = __('Change Payment Method', 'woocommerce-gateway-stripe');
 			$total           = '';
 		} else {
 			$pay_button_text = '';
@@ -297,44 +297,44 @@ 
 
 		echo '<div
 			id="stripe-payment-data"
-			data-panel-label="' . esc_attr( $pay_button_text ) . '"
-			data-description="' . esc_attr( wp_strip_all_tags( $this->stripe_checkout_description ) ) . '"
-			data-email="' . esc_attr( $user_email ) . '"
-			data-verify-zip="' . esc_attr( apply_filters( 'wc_stripe_checkout_verify_zip', false ) ? 'true' : 'false' ) . '"
-			data-billing-address="' . esc_attr( apply_filters( 'wc_stripe_checkout_require_billing_address', false ) ? 'true' : 'false' ) . '"
-			data-shipping-address="' . esc_attr( apply_filters( 'wc_stripe_checkout_require_shipping_address', false ) ? 'true' : 'false' ) . '" 
-			data-amount="' . esc_attr( WC_Stripe_Helper::get_stripe_amount( $total ) ) . '"
-			data-name="' . esc_attr( $this->statement_descriptor ) . '"
-			data-full-name="' . esc_attr( $firstname . ' ' . $lastname ) . '"
-			data-currency="' . esc_attr( strtolower( get_woocommerce_currency() ) ) . '"
-			data-image="' . esc_attr( $this->stripe_checkout_image ) . '"
-			data-locale="' . esc_attr( apply_filters( 'wc_stripe_checkout_locale', $this->get_locale() ) ) . '"
-			data-three-d-secure="' . esc_attr( $this->three_d_secure ? 'true' : 'false' ) . '"
-			data-allow-remember-me="' . esc_attr( apply_filters( 'wc_stripe_allow_remember_me', true ) ? 'true' : 'false' ) . '">';
-
-		if ( $this->testmode ) {
+			data-panel-label="' . esc_attr($pay_button_text) . '"
+			data-description="' . esc_attr(wp_strip_all_tags($this->stripe_checkout_description)) . '"
+			data-email="' . esc_attr($user_email) . '"
+			data-verify-zip="' . esc_attr(apply_filters('wc_stripe_checkout_verify_zip', false) ? 'true' : 'false') . '"
+			data-billing-address="' . esc_attr(apply_filters('wc_stripe_checkout_require_billing_address', false) ? 'true' : 'false') . '"
+			data-shipping-address="' . esc_attr(apply_filters('wc_stripe_checkout_require_shipping_address', false) ? 'true' : 'false') . '" 
+			data-amount="' . esc_attr(WC_Stripe_Helper::get_stripe_amount($total)) . '"
+			data-name="' . esc_attr($this->statement_descriptor) . '"
+			data-full-name="' . esc_attr($firstname . ' ' . $lastname) . '"
+			data-currency="' . esc_attr(strtolower(get_woocommerce_currency())) . '"
+			data-image="' . esc_attr($this->stripe_checkout_image) . '"
+			data-locale="' . esc_attr(apply_filters('wc_stripe_checkout_locale', $this->get_locale())) . '"
+			data-three-d-secure="' . esc_attr($this->three_d_secure ? 'true' : 'false') . '"
+			data-allow-remember-me="' . esc_attr(apply_filters('wc_stripe_allow_remember_me', true) ? 'true' : 'false') . '">';
+
+		if ($this->testmode) {
 			/* translators: link to Stripe testing page */
-			$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 <a href="%s" target="_blank">Testing Stripe documentation</a> for more card numbers.', 'woocommerce-gateway-stripe' ), 'https://stripe.com/docs/testing' );
+			$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 <a href="%s" target="_blank">Testing Stripe documentation</a> for more card numbers.', 'woocommerce-gateway-stripe'), 'https://stripe.com/docs/testing');
 		}
 
-		$description = trim( $description );
+		$description = trim($description);
 
-		echo apply_filters( 'wc_stripe_description', wpautop( wp_kses_post( $description ) ), $this->id );
+		echo apply_filters('wc_stripe_description', wpautop(wp_kses_post($description)), $this->id);
 
-		if ( $display_tokenization ) {
+		if ($display_tokenization) {
 			$this->tokenization_script();
 			$this->saved_payment_methods();
 		}
 
-		if ( ! $this->stripe_checkout ) {
+		if ( ! $this->stripe_checkout) {
 			$this->elements_form();
 		}
 
-		if ( apply_filters( 'wc_stripe_display_save_payment_method_checkbox', $display_tokenization ) && ! is_add_payment_method_page() && ! isset( $_GET['change_payment_method'] ) ) {
+		if (apply_filters('wc_stripe_display_save_payment_method_checkbox', $display_tokenization) && ! is_add_payment_method_page() && ! isset($_GET['change_payment_method'])) {
 
-			if ( ! $this->stripe_checkout ) {
+			if ( ! $this->stripe_checkout) {
 				$this->save_payment_method_checkbox();
-			} elseif ( $this->stripe_checkout && isset( $_GET['pay_for_order'] ) && ! empty( $_GET['key'] ) ) {
+			} elseif ($this->stripe_checkout && isset($_GET['pay_for_order']) && ! empty($_GET['key'])) {
 				$this->save_payment_method_checkbox();
 			}
 		}
@@ -352,12 +352,12 @@ 
 	 */
 	public function elements_form() {
 		?>
-		<fieldset id="wc-<?php echo esc_attr( $this->id ); ?>-cc-form" class="wc-credit-card-form wc-payment-form" style="background:transparent;">
-			<?php do_action( 'woocommerce_credit_card_form_start', $this->id ); ?>
+		<fieldset id="wc-<?php echo esc_attr($this->id); ?>-cc-form" class="wc-credit-card-form wc-payment-form" style="background:transparent;">
+			<?php do_action('woocommerce_credit_card_form_start', $this->id); ?>
 
-			<?php if ( $this->inline_cc_form ) { ?>
+			<?php if ($this->inline_cc_form) { ?>
 				<label for="card-element">
-					<?php esc_html_e( 'Credit or debit card', 'woocommerce-gateway-stripe' ); ?>
+					<?php esc_html_e('Credit or debit card', 'woocommerce-gateway-stripe'); ?>
 				</label>
 
 				<div id="stripe-card-element" class="wc-stripe-elements-field">
@@ -365,7 +365,7 @@ 
 				</div>
 			<?php } else { ?>
 				<div class="form-row form-row-wide">
-					<label for="stripe-card-element"><?php esc_html_e( 'Card Number', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-card-element"><?php esc_html_e('Card Number', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 					<div class="stripe-card-group">
 						<div id="stripe-card-element" class="wc-stripe-elements-field">
 						<!-- a Stripe Element will be inserted here. -->
@@ -376,7 +376,7 @@ 
 				</div>
 
 				<div class="form-row form-row-first">
-					<label for="stripe-exp-element"><?php esc_html_e( 'Expiry Date', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-exp-element"><?php esc_html_e('Expiry Date', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 
 					<div id="stripe-exp-element" class="wc-stripe-elements-field">
 					<!-- a Stripe Element will be inserted here. -->
@@ -384,7 +384,7 @@ 
 				</div>
 
 				<div class="form-row form-row-last">
-					<label for="stripe-cvc-element"><?php esc_html_e( 'Card Code (CVC)', 'woocommerce-gateway-stripe' ); ?> <span class="required">*</span></label>
+					<label for="stripe-cvc-element"><?php esc_html_e('Card Code (CVC)', 'woocommerce-gateway-stripe'); ?> <span class="required">*</span></label>
 				<div id="stripe-cvc-element" class="wc-stripe-elements-field">
 				<!-- a Stripe Element will be inserted here. -->
 				</div>
@@ -395,7 +395,7 @@ 
 			<!-- Used to display form errors -->
 			<div class="stripe-source-errors" role="alert"></div>
 			<br />
-			<?php do_action( 'woocommerce_credit_card_form_end', $this->id ); ?>
+			<?php do_action('woocommerce_credit_card_form_end', $this->id); ?>
 			<div class="clear"></div>
 		</fieldset>
 		<?php
@@ -408,13 +408,13 @@ 
 	 * @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);
 	}
 
 	/**
@@ -426,47 +426,47 @@ 
 	 * @version 4.0.0
 	 */
 	public function payment_scripts() {
-		if ( ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) && ! is_add_payment_method_page() && ! isset( $_GET['change_payment_method'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order']) && ! is_add_payment_method_page() && ! isset($_GET['change_payment_method'])) {
 			return;
 		}
 
 		// If Stripe is not enabled bail.
-		if ( 'no' === $this->enabled ) {
+		if ('no' === $this->enabled) {
 			return;
 		}
 
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe live mode requires SSL.');
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
-		wp_register_style( 'stripe_styles', plugins_url( 'assets/css/stripe-styles.css', WC_STRIPE_MAIN_FILE ), array(), WC_STRIPE_VERSION );
-		wp_enqueue_style( 'stripe_styles' );
+		wp_register_style('stripe_styles', plugins_url('assets/css/stripe-styles.css', WC_STRIPE_MAIN_FILE), array(), WC_STRIPE_VERSION);
+		wp_enqueue_style('stripe_styles');
 
-		wp_register_script( 'stripe_checkout', 'https://checkout.stripe.com/checkout.js', '', WC_STRIPE_VERSION, true );
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'woocommerce_stripe', plugins_url( 'assets/js/stripe' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery-payment', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe_checkout', 'https://checkout.stripe.com/checkout.js', '', WC_STRIPE_VERSION, true);
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_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);
 
-			if ( is_a( $order, 'WC_Order' ) ) {
+			if (is_a($order, 'WC_Order')) {
 				$stripe_params['billing_first_name'] = WC_Stripe_Helper::is_pre_30() ? $order->billing_first_name : $order->get_billing_first_name();
 				$stripe_params['billing_last_name']  = WC_Stripe_Helper::is_pre_30() ? $order->billing_last_name : $order->get_billing_last_name();
 				$stripe_params['billing_address_1']  = WC_Stripe_Helper::is_pre_30() ? $order->billing_address_1 : $order->get_billing_address_1();
@@ -478,40 +478,40 @@ 
 			}
 		}
 
-		$stripe_params['no_prepaid_card_msg']                     = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-		$stripe_params['no_sepa_owner_msg']                       = __( 'Please enter your IBAN account name.', 'woocommerce-gateway-stripe' );
-		$stripe_params['no_sepa_iban_msg']                        = __( 'Please enter your IBAN account number.', 'woocommerce-gateway-stripe' );
-		$stripe_params['sepa_mandate_notification']               = apply_filters( 'wc_stripe_sepa_mandate_notification', 'email' );
-		$stripe_params['allow_prepaid_card']                      = apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no';
+		$stripe_params['no_prepaid_card_msg']                     = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+		$stripe_params['no_sepa_owner_msg']                       = __('Please enter your IBAN account name.', 'woocommerce-gateway-stripe');
+		$stripe_params['no_sepa_iban_msg']                        = __('Please enter your IBAN account number.', 'woocommerce-gateway-stripe');
+		$stripe_params['sepa_mandate_notification']               = apply_filters('wc_stripe_sepa_mandate_notification', 'email');
+		$stripe_params['allow_prepaid_card']                      = apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no';
 		$stripe_params['inline_cc_form']                          = $this->inline_cc_form ? 'yes' : 'no';
-		$stripe_params['stripe_checkout_require_billing_address'] = apply_filters( 'wc_stripe_checkout_require_billing_address', false ) ? 'yes' : 'no';
-		$stripe_params['is_checkout']                             = ( is_checkout() && empty( $_GET['pay_for_order'] ) ) ? 'yes' : 'no';
+		$stripe_params['stripe_checkout_require_billing_address'] = apply_filters('wc_stripe_checkout_require_billing_address', false) ? 'yes' : 'no';
+		$stripe_params['is_checkout']                             = (is_checkout() && empty($_GET['pay_for_order'])) ? 'yes' : 'no';
 		$stripe_params['return_url']                              = $this->get_stripe_return_url();
-		$stripe_params['ajaxurl']                                 = WC_AJAX::get_endpoint( '%%endpoint%%' );
-		$stripe_params['stripe_nonce']                            = wp_create_nonce( '_wc_stripe_nonce' );
+		$stripe_params['ajaxurl']                                 = WC_AJAX::get_endpoint('%%endpoint%%');
+		$stripe_params['stripe_nonce']                            = wp_create_nonce('_wc_stripe_nonce');
 		$stripe_params['statement_descriptor']                    = $this->statement_descriptor;
-		$stripe_params['elements_options']                        = apply_filters( 'wc_stripe_elements_options', array() );
-		$stripe_params['sepa_elements_options']                   = apply_filters( 'wc_stripe_sepa_elements_options', array( 'supportedCountries' => array( 'SEPA' ), 'placeholderCountry' => WC()->countries->get_base_country(), 'style' => array( 'base' => array( 'fontSize' => '15px' ) ) ) );
-		$stripe_params['invalid_owner_name']                      = __( 'Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe' );
+		$stripe_params['elements_options']                        = apply_filters('wc_stripe_elements_options', array());
+		$stripe_params['sepa_elements_options']                   = apply_filters('wc_stripe_sepa_elements_options', array('supportedCountries' => array('SEPA'), 'placeholderCountry' => WC()->countries->get_base_country(), 'style' => array('base' => array('fontSize' => '15px'))));
+		$stripe_params['invalid_owner_name']                      = __('Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe');
 		$stripe_params['is_stripe_checkout']                      = $this->stripe_checkout ? 'yes' : 'no';
-		$stripe_params['is_change_payment_page']                  = isset( $_GET['change_payment_method'] ) ? 'yes' : 'no';
-		$stripe_params['is_add_payment_page']                     = is_wc_endpoint_url( 'add-payment-method' ) ? 'yes' : 'no';
-		$stripe_params['is_pay_for_order_page']                   = is_wc_endpoint_url( 'order-pay' ) ? 'yes' : 'no';
-		$stripe_params['elements_styling']                        = apply_filters( 'wc_stripe_elements_styling', false );
-		$stripe_params['elements_classes']                        = apply_filters( 'wc_stripe_elements_classes', false );
+		$stripe_params['is_change_payment_page']                  = isset($_GET['change_payment_method']) ? 'yes' : 'no';
+		$stripe_params['is_add_payment_page']                     = is_wc_endpoint_url('add-payment-method') ? 'yes' : 'no';
+		$stripe_params['is_pay_for_order_page']                   = is_wc_endpoint_url('order-pay') ? 'yes' : 'no';
+		$stripe_params['elements_styling']                        = apply_filters('wc_stripe_elements_styling', false);
+		$stripe_params['elements_classes']                        = apply_filters('wc_stripe_elements_classes', false);
 
 		// merge localized messages to be use in JS
-		$stripe_params = array_merge( $stripe_params, WC_Stripe_Helper::get_localized_messages() );
+		$stripe_params = array_merge($stripe_params, WC_Stripe_Helper::get_localized_messages());
 
-		wp_localize_script( 'woocommerce_stripe', 'wc_stripe_params', apply_filters( 'wc_stripe_params', $stripe_params ) );
-		wp_localize_script( 'woocommerce_stripe_checkout', '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));
+		wp_localize_script('woocommerce_stripe_checkout', 'wc_stripe_params', apply_filters('wc_stripe_params', $stripe_params));
 
-		if ( $this->stripe_checkout ) {
-			wp_enqueue_script( 'stripe_checkout' );
+		if ($this->stripe_checkout) {
+			wp_enqueue_script('stripe_checkout');
 		}
 
 		$this->tokenization_script();
-		wp_enqueue_script( 'woocommerce_stripe' );
+		wp_enqueue_script('woocommerce_stripe');
 	}
 
 	/**
@@ -519,70 +519,70 @@ 
 	 *
 	 * @since 4.1.0
 	 */
-	public function stripe_checkout_receipt_page( $order_id ) {
-		if ( ! $this->stripe_checkout ) {
+	public function stripe_checkout_receipt_page($order_id) {
+		if ( ! $this->stripe_checkout) {
 			return;
 		}
 
 		$user                 = wp_get_current_user();
 		$total                = WC()->cart->total;
 		$user_email           = '';
-		$display_tokenization = $this->supports( 'tokenization' ) && $this->saved_cards;
+		$display_tokenization = $this->supports('tokenization') && $this->saved_cards;
 
 		// If paying from order, we need to get total from order not cart.
-		if ( ! empty( $_GET['key'] ) ) {
-			$order      = wc_get_order( wc_get_order_id_by_order_key( wc_clean( $_GET['key'] ) ) );
+		if ( ! empty($_GET['key'])) {
+			$order      = wc_get_order(wc_get_order_id_by_order_key(wc_clean($_GET['key'])));
 			$total      = $order->get_total();
 			$user_email = WC_Stripe_Helper::is_pre_30() ? $order->billing_email : $order->get_billing_email();
 		} else {
-			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;
 			}
 		}
 
 		ob_start();
 
-		do_action( 'wc_stripe_checkout_receipt_page_before_form' );
+		do_action('wc_stripe_checkout_receipt_page_before_form');
 
-		echo '<form method="post" class="woocommerce-checkout" action="' . WC()->api_request_url( get_class( $this ) ) . '">';
+		echo '<form method="post" class="woocommerce-checkout" action="' . WC()->api_request_url(get_class($this)) . '">';
 		echo '<div
 			id="stripe-payment-data"
-			data-panel-label="' . esc_attr( apply_filters( 'wc_stripe_checkout_label', '' ) ) . '"
-			data-description="' . esc_attr( wp_strip_all_tags( $this->stripe_checkout_description ) ) . '"
-			data-email="' . esc_attr( $user_email ) . '"
-			data-verify-zip="' . esc_attr( apply_filters( 'wc_stripe_checkout_verify_zip', false ) ? 'true' : 'false' ) . '"
-			data-billing-address="' . esc_attr( apply_filters( 'wc_stripe_checkout_require_billing_address', false ) ? 'true' : 'false' ) . '"
-			data-shipping-address="' . esc_attr( apply_filters( 'wc_stripe_checkout_require_shipping_address', false ) ? 'true' : 'false' ) . '" 
-			data-amount="' . esc_attr( WC_Stripe_Helper::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-locale="' . esc_attr( apply_filters( 'wc_stripe_checkout_locale', $this->get_locale() ) ) . '"
-			data-three-d-secure="' . esc_attr( $this->three_d_secure ? 'true' : 'false' ) . '"
-			data-allow-remember-me="' . esc_attr( apply_filters( 'wc_stripe_allow_remember_me', true ) ? 'true' : 'false' ) . '">';
-		echo '<input type="hidden" name="order_id" value="' . esc_attr( $order_id ) . '" />';
+			data-panel-label="' . esc_attr(apply_filters('wc_stripe_checkout_label', '')) . '"
+			data-description="' . esc_attr(wp_strip_all_tags($this->stripe_checkout_description)) . '"
+			data-email="' . esc_attr($user_email) . '"
+			data-verify-zip="' . esc_attr(apply_filters('wc_stripe_checkout_verify_zip', false) ? 'true' : 'false') . '"
+			data-billing-address="' . esc_attr(apply_filters('wc_stripe_checkout_require_billing_address', false) ? 'true' : 'false') . '"
+			data-shipping-address="' . esc_attr(apply_filters('wc_stripe_checkout_require_shipping_address', false) ? 'true' : 'false') . '" 
+			data-amount="' . esc_attr(WC_Stripe_Helper::get_stripe_amount($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-locale="' . esc_attr(apply_filters('wc_stripe_checkout_locale', $this->get_locale())) . '"
+			data-three-d-secure="' . esc_attr($this->three_d_secure ? 'true' : 'false') . '"
+			data-allow-remember-me="' . esc_attr(apply_filters('wc_stripe_allow_remember_me', true) ? 'true' : 'false') . '">';
+		echo '<input type="hidden" name="order_id" value="' . esc_attr($order_id) . '" />';
 		echo '<input type="hidden" name="stripe_checkout_order" value="yes" />';
 
 		if (
-			apply_filters( 'wc_stripe_display_save_payment_method_checkbox', $display_tokenization ) &&
-			( ! function_exists( 'wcs_order_contains_subscription' ) || ( function_exists( 'wcs_order_contains_subscription' ) && ! WC_Subscriptions_Cart::cart_contains_subscription() ) ) &&
-			( ! WC_Stripe_Helper::is_pre_orders_exists() || ( WC_Stripe_Helper::is_pre_orders_exists() && ! $this->pre_orders->is_pre_order( $order_id ) ) )
+			apply_filters('wc_stripe_display_save_payment_method_checkbox', $display_tokenization) &&
+			( ! function_exists('wcs_order_contains_subscription') || (function_exists('wcs_order_contains_subscription') && ! WC_Subscriptions_Cart::cart_contains_subscription())) &&
+			( ! WC_Stripe_Helper::is_pre_orders_exists() || (WC_Stripe_Helper::is_pre_orders_exists() && ! $this->pre_orders->is_pre_order($order_id)))
 		) {
 			$this->save_payment_method_checkbox();
 		}
 
-		wp_nonce_field( 'stripe-checkout-process', 'stripe_checkout_process_nonce' );
+		wp_nonce_field('stripe-checkout-process', 'stripe_checkout_process_nonce');
 
-		do_action( 'wc_stripe_checkout_receipt_page_before_form_submit' );
+		do_action('wc_stripe_checkout_receipt_page_before_form_submit');
 
-		echo '<button type="submit" class="wc-stripe-checkout-button">' . __( 'Place Order', 'woocommerce-gateway-stripe' ) . '</button>';
+		echo '<button type="submit" class="wc-stripe-checkout-button">' . __('Place Order', 'woocommerce-gateway-stripe') . '</button>';
 
-		do_action( 'wc_stripe_checkout_receipt_page_after_form_submit' );
+		do_action('wc_stripe_checkout_receipt_page_after_form_submit');
 
 		echo '</form>';
 
-		do_action( 'wc_stripe_checkout_receipt_page_after_form' );
+		do_action('wc_stripe_checkout_receipt_page_after_form');
 
 		echo '</div>';
 
@@ -595,32 +595,32 @@ 
 	 * @since 4.1.0
 	 */
 	public function stripe_checkout_return_handler() {
-		if ( ! $this->stripe_checkout ) {
+		if ( ! $this->stripe_checkout) {
 			return;
 		}
 
-		if ( ! wp_verify_nonce( $_POST['stripe_checkout_process_nonce'], 'stripe-checkout-process' ) ) {
+		if ( ! wp_verify_nonce($_POST['stripe_checkout_process_nonce'], 'stripe-checkout-process')) {
 			return;
 		}
 
-		$order_id = wc_clean( $_POST['order_id'] );
-		$order    = wc_get_order( $order_id );
+		$order_id = wc_clean($_POST['order_id']);
+		$order    = wc_get_order($order_id);
 
-		do_action( 'wc_stripe_checkout_return_handler', $order );
+		do_action('wc_stripe_checkout_return_handler', $order);
 
-		if ( WC_Stripe_Helper::is_pre_orders_exists() && $this->pre_orders->is_pre_order( $order_id ) && WC_Pre_Orders_Order::order_requires_payment_tokenization( $order_id ) ) {
-			$result = $this->pre_orders->process_pre_order( $order_id );
+		if (WC_Stripe_Helper::is_pre_orders_exists() && $this->pre_orders->is_pre_order($order_id) && WC_Pre_Orders_Order::order_requires_payment_tokenization($order_id)) {
+			$result = $this->pre_orders->process_pre_order($order_id);
 		} else {
-			$result = $this->process_payment( $order_id );
+			$result = $this->process_payment($order_id);
 		}
 
-		if ( 'success' === $result['result'] ) {
-			wp_redirect( $result['redirect'] );
+		if ('success' === $result['result']) {
+			wp_redirect($result['redirect']);
 			exit;
 		}
 
 		// Redirects back to pay order page.
-		wp_safe_redirect( $order->get_checkout_payment_url( true ) );
+		wp_safe_redirect($order->get_checkout_payment_url(true));
 		exit;
 	}
 
@@ -631,13 +631,13 @@ 
 	 * @return bool
 	 */
 	public function maybe_redirect_stripe_checkout() {
-		$is_payment_request = ( isset( $_POST ) && isset( $_POST['payment_request_type'] ) );
+		$is_payment_request = (isset($_POST) && isset($_POST['payment_request_type']));
 
 		return (
 			$this->stripe_checkout &&
-			! isset( $_POST['stripe_checkout_order'] ) &&
+			! isset($_POST['stripe_checkout_order']) &&
 			! $this->is_using_saved_payment_method() &&
-			! is_wc_endpoint_url( 'order-pay' ) &&
+			! is_wc_endpoint_url('order-pay') &&
 			! $is_payment_request
 		);
 	}
@@ -656,53 +656,53 @@ 
 	 *
 	 * @return array|void
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false, $previous_error = false ) {
+	public function process_payment($order_id, $retry = true, $force_save_source = false, $previous_error = false) {
 		try {
-			$order = wc_get_order( $order_id );
+			$order = wc_get_order($order_id);
 
-			if ( $this->maybe_redirect_stripe_checkout() ) {
-				WC_Stripe_Logger::log( sprintf( 'Redirecting to Stripe Checkout page for order %s', $order_id ) );
+			if ($this->maybe_redirect_stripe_checkout()) {
+				WC_Stripe_Logger::log(sprintf('Redirecting to Stripe Checkout page for order %s', $order_id));
 
 				return array(
 					'result'   => 'success',
-					'redirect' => $order->get_checkout_payment_url( true ),
+					'redirect' => $order->get_checkout_payment_url(true),
 				);
 			}
 
-			if ( $this->maybe_process_pre_orders( $order_id ) ) {
-				return $this->pre_orders->process_pre_order( $order_id );
+			if ($this->maybe_process_pre_orders($order_id)) {
+				return $this->pre_orders->process_pre_order($order_id);
 			}
 
 			// This comes from the create account checkbox in the checkout page.
-			$create_account = ! empty( $_POST['createaccount'] ) ? true : false;
+			$create_account = ! empty($_POST['createaccount']) ? true : false;
 
-			if ( $create_account ) {
+			if ($create_account) {
 				$new_customer_id     = WC_Stripe_Helper::is_pre_30() ? $order->customer_user : $order->get_customer_id();
-				$new_stripe_customer = new WC_Stripe_Customer( $new_customer_id );
+				$new_stripe_customer = new WC_Stripe_Customer($new_customer_id);
 				$new_stripe_customer->create_customer();
 			}
 
-			$prepared_source = $this->prepare_source( get_current_user_id(), $force_save_source );
+			$prepared_source = $this->prepare_source(get_current_user_id(), $force_save_source);
 
 			// Check if we don't allow prepaid credit cards.
-			if ( ! apply_filters( 'wc_stripe_allow_prepaid_card', true ) && $this->is_prepaid_card( $prepared_source->source_object ) ) {
-				$localized_message = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-				throw new WC_Stripe_Exception( print_r( $prepared_source->source_object, true ), $localized_message );
+			if ( ! apply_filters('wc_stripe_allow_prepaid_card', true) && $this->is_prepaid_card($prepared_source->source_object)) {
+				$localized_message = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+				throw new WC_Stripe_Exception(print_r($prepared_source->source_object, true), $localized_message);
 			}
 
-			if ( empty( $prepared_source->source ) ) {
-				$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-				throw new WC_Stripe_Exception( print_r( $prepared_source, true ), $localized_message );
+			if (empty($prepared_source->source)) {
+				$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+				throw new WC_Stripe_Exception(print_r($prepared_source, true), $localized_message);
 			}
 
-			$this->save_source_to_order( $order, $prepared_source );
+			$this->save_source_to_order($order, $prepared_source);
 
 			// Result from Stripe API request.
 			$response = null;
 
-			if ( $order->get_total() > 0 ) {
+			if ($order->get_total() > 0) {
 				// This will throw exception if not valid.
-				$this->validate_minimum_order_amount( $order );
+				$this->validate_minimum_order_amount($order);
 
 				/*
 				 * Check if card 3DS is required or optional with 3DS setting.
@@ -711,22 +711,22 @@ 
 				 * Note that if we need to save source, the original source must be first
 				 * attached to a customer in Stripe before it can be charged.
 				 */
-				if ( $this->is_3ds_required( $prepared_source->source_object ) ) {
-					$response = $this->create_3ds_source( $order, $prepared_source->source_object );
+				if ($this->is_3ds_required($prepared_source->source_object)) {
+					$response = $this->create_3ds_source($order, $prepared_source->source_object);
 
-					if ( ! empty( $response->error ) ) {
+					if ( ! empty($response->error)) {
 						$localized_message = $response->error->message;
 
-						$order->add_order_note( $localized_message );
+						$order->add_order_note($localized_message);
 
-						throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+						throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 					}
 
 					// Update order meta with 3DS source.
-					if ( WC_Stripe_Helper::is_pre_30() ) {
-						update_post_meta( $order_id, '_stripe_source_id', $response->id );
+					if (WC_Stripe_Helper::is_pre_30()) {
+						update_post_meta($order_id, '_stripe_source_id', $response->id);
 					} else {
-						$order->update_meta_data( '_stripe_source_id', $response->id );
+						$order->update_meta_data('_stripe_source_id', $response->id);
 						$order->save();
 					}
 
@@ -734,91 +734,91 @@ 
 					 * Make sure after creating 3DS object it is in pending status
 					 * before redirecting.
 					 */
-					if ( 'pending' === $response->redirect->status ) {
-						WC_Stripe_Logger::log( 'Info: Redirecting to 3DS...' );
+					if ('pending' === $response->redirect->status) {
+						WC_Stripe_Logger::log('Info: Redirecting to 3DS...');
 
 						return array(
 							'result'   => 'success',
-							'redirect' => esc_url_raw( $response->redirect->url ),
+							'redirect' => esc_url_raw($response->redirect->url),
 						);
-					} elseif ( 'not_required' === $response->redirect->status && 'chargeable' === $response->status ) {
+					} elseif ('not_required' === $response->redirect->status && 'chargeable' === $response->status) {
 						// Override the original source object with 3DS.
 						$prepared_source->source_object = $response;
 						$prepared_source->source        = $response->id;
 					}
 				}
 
-				WC_Stripe_Logger::log( "Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}" );
+				WC_Stripe_Logger::log("Info: Begin processing payment for order $order_id for the amount of {$order->get_total()}");
 
 				/* If we're doing a retry and source is chargeable, we need to pass
 				 * a different idempotency key and retry for success.
 				 */
-				if ( $this->need_update_idempotency_key( $prepared_source->source_object, $previous_error ) ) {
-					add_filter( 'wc_stripe_idempotency_key', array( $this, 'change_idempotency_key' ), 10, 2 );
+				if ($this->need_update_idempotency_key($prepared_source->source_object, $previous_error)) {
+					add_filter('wc_stripe_idempotency_key', array($this, 'change_idempotency_key'), 10, 2);
 				}
 
 				// Make the request.
-				$response = WC_Stripe_API::request( $this->generate_payment_request( $order, $prepared_source ) );
+				$response = WC_Stripe_API::request($this->generate_payment_request($order, $prepared_source));
 
-				if ( ! empty( $response->error ) ) {
+				if ( ! empty($response->error)) {
 					// Customer param wrong? The user may have been deleted on stripe's end. Remove customer_id. Can be retried without.
-					if ( $this->is_no_such_customer_error( $response->error ) ) {
-						if ( WC_Stripe_Helper::is_pre_30() ) {
-							delete_user_meta( $order->customer_user, '_stripe_customer_id' );
-							delete_post_meta( $order_id, '_stripe_customer_id' );
+					if ($this->is_no_such_customer_error($response->error)) {
+						if (WC_Stripe_Helper::is_pre_30()) {
+							delete_user_meta($order->customer_user, '_stripe_customer_id');
+							delete_post_meta($order_id, '_stripe_customer_id');
 						} else {
-							delete_user_meta( $order->get_customer_id(), '_stripe_customer_id' );
-							$order->delete_meta_data( '_stripe_customer_id' );
+							delete_user_meta($order->get_customer_id(), '_stripe_customer_id');
+							$order->delete_meta_data('_stripe_customer_id');
 							$order->save();
 						}
 					}
 
-					if ( $this->is_no_such_token_error( $response->error ) && $prepared_source->token_id ) {
+					if ($this->is_no_such_token_error($response->error) && $prepared_source->token_id) {
 						// Source param wrong? The CARD may have been deleted on stripe's end. Remove token and show message.
-						$wc_token = WC_Payment_Tokens::get( $prepared_source->token_id );
+						$wc_token = WC_Payment_Tokens::get($prepared_source->token_id);
 						$wc_token->delete();
-						$localized_message = __( 'This card is no longer available and has been removed.', 'woocommerce-gateway-stripe' );
-						$order->add_order_note( $localized_message );
-						throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+						$localized_message = __('This card is no longer available and has been removed.', 'woocommerce-gateway-stripe');
+						$order->add_order_note($localized_message);
+						throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 					}
 
 					// We want to retry.
-					if ( $this->is_retryable_error( $response->error ) ) {
-						if ( $retry ) {
+					if ($this->is_retryable_error($response->error)) {
+						if ($retry) {
 							// Don't do anymore retries after this.
-							if ( 5 <= $this->retry_interval ) {
-								return $this->process_payment( $order_id, false, $force_save_source, $response->error );
+							if (5 <= $this->retry_interval) {
+								return $this->process_payment($order_id, false, $force_save_source, $response->error);
 							}
 
-							sleep( $this->retry_interval );
+							sleep($this->retry_interval);
 
 							$this->retry_interval++;
 
-							return $this->process_payment( $order_id, true, $force_save_source, $response->error );
+							return $this->process_payment($order_id, true, $force_save_source, $response->error);
 						} else {
-							$localized_message = __( 'Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe' );
-							$order->add_order_note( $localized_message );
-							throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+							$localized_message = __('Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe');
+							$order->add_order_note($localized_message);
+							throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 						}
 					}
 
 					$localized_messages = WC_Stripe_Helper::get_localized_messages();
 
-					if ( 'card_error' === $response->error->type ) {
-						$localized_message = isset( $localized_messages[ $response->error->code ] ) ? $localized_messages[ $response->error->code ] : $response->error->message;
+					if ('card_error' === $response->error->type) {
+						$localized_message = isset($localized_messages[$response->error->code]) ? $localized_messages[$response->error->code] : $response->error->message;
 					} else {
-						$localized_message = isset( $localized_messages[ $response->error->type ] ) ? $localized_messages[ $response->error->type ] : $response->error->message;
+						$localized_message = isset($localized_messages[$response->error->type]) ? $localized_messages[$response->error->type] : $response->error->message;
 					}
 
-					$order->add_order_note( $localized_message );
+					$order->add_order_note($localized_message);
 
-					throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+					throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 				}
 
-				do_action( 'wc_gateway_stripe_process_payment', $response, $order );
+				do_action('wc_gateway_stripe_process_payment', $response, $order);
 
 				// Process valid response.
-				$this->process_response( $response, $order );
+				$this->process_response($response, $order);
 			} else {
 				$order->payment_complete();
 			}
@@ -829,17 +829,17 @@ 
 			// Return thank you page redirect.
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $order ),
+				'redirect' => $this->get_return_url($order),
 			);
 
-		} catch ( WC_Stripe_Exception $e ) {
-			wc_add_notice( $e->getLocalizedMessage(), 'error' );
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			wc_add_notice($e->getLocalizedMessage(), 'error');
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 
-			do_action( 'wc_gateway_stripe_process_payment_error', $e, $order );
+			do_action('wc_gateway_stripe_process_payment_error', $e, $order);
 
 			/* translators: error message */
-			$order->update_status( 'failed' );
+			$order->update_status('failed');
 
 			return array(
 				'result'   => 'fail',
@@ -855,17 +855,17 @@ 
 	 *
 	 * @param int $order_id
 	 */
-	public function display_order_fee( $order_id ) {
-		if ( apply_filters( 'wc_stripe_hide_display_order_fee', false, $order_id ) ) {
+	public function display_order_fee($order_id) {
+		if (apply_filters('wc_stripe_hide_display_order_fee', false, $order_id)) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$fee      = WC_Stripe_Helper::get_stripe_fee( $order );
-		$currency = WC_Stripe_Helper::get_stripe_currency( $order );
+		$fee      = WC_Stripe_Helper::get_stripe_fee($order);
+		$currency = WC_Stripe_Helper::get_stripe_currency($order);
 
-		if ( ! $fee || ! $currency ) {
+		if ( ! $fee || ! $currency) {
 			return;
 		}
 
@@ -873,12 +873,12 @@ 
 
 		<tr>
 			<td class="label stripe-fee">
-				<?php echo wc_help_tip( __( 'This represents the fee Stripe collects for the transaction.', 'woocommerce-gateway-stripe' ) ); ?>
-				<?php esc_html_e( 'Stripe Fee:', 'woocommerce-gateway-stripe' ); ?>
+				<?php echo wc_help_tip(__('This represents the fee Stripe collects for the transaction.', 'woocommerce-gateway-stripe')); ?>
+				<?php esc_html_e('Stripe Fee:', 'woocommerce-gateway-stripe'); ?>
 			</td>
 			<td width="1%"></td>
 			<td class="total">
-				-&nbsp;<?php echo wc_price( $fee, array( 'currency' => $currency ) ); ?>
+				-&nbsp;<?php echo wc_price($fee, array('currency' => $currency)); ?>
 			</td>
 		</tr>
 
@@ -892,17 +892,17 @@ 
 	 *
 	 * @param int $order_id
 	 */
-	public function display_order_payout( $order_id ) {
-		if ( apply_filters( 'wc_stripe_hide_display_order_payout', false, $order_id ) ) {
+	public function display_order_payout($order_id) {
+		if (apply_filters('wc_stripe_hide_display_order_payout', false, $order_id)) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$net      = WC_Stripe_Helper::get_stripe_net( $order );
-		$currency = WC_Stripe_Helper::get_stripe_currency( $order );
+		$net      = WC_Stripe_Helper::get_stripe_net($order);
+		$currency = WC_Stripe_Helper::get_stripe_currency($order);
 
-		if ( ! $net || ! $currency ) {
+		if ( ! $net || ! $currency) {
 			return;
 		}
 
@@ -910,12 +910,12 @@ 
 
 		<tr>
 			<td class="label stripe-payout">
-				<?php echo wc_help_tip( __( 'This represents the net total that will be credited to your Stripe bank account. This may be in the currency that is set in your Stripe account.', 'woocommerce-gateway-stripe' ) ); ?>
-				<?php esc_html_e( 'Stripe Payout:', 'woocommerce-gateway-stripe' ); ?>
+				<?php echo wc_help_tip(__('This represents the net total that will be credited to your Stripe bank account. This may be in the currency that is set in your Stripe account.', 'woocommerce-gateway-stripe')); ?>
+				<?php esc_html_e('Stripe Payout:', 'woocommerce-gateway-stripe'); ?>
 			</td>
 			<td width="1%"></td>
 			<td class="total">
-				<?php echo wc_price( $net, array( 'currency' => $currency ) ); ?>
+				<?php echo wc_price($net, array('currency' => $currency)); ?>
 			</td>
 		</tr>