woocommerce / woocommerce-gateway-stripe

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

Indentation +1 added lines, -1 removed lines

@@ -163,7 +163,7 @@
 				&& preg_match( '/^[rs]k_test_/', $this->secret_key );
 		} else {
 			return preg_match( '/^pk_live_/', $this->publishable_key )
-			    && preg_match( '/^[rs]k_live_/', $this->secret_key );
+				&& preg_match( '/^[rs]k_live_/', $this->secret_key );
 		}
 	}
 

Spacing +375 added lines, -376 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -21,7 +21,7 @@ 
 	 */
 	public function display_admin_settings_webhook_description() {
 		/* translators: 1) webhook url */
-		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());
 	}
 
 	/**
@@ -35,8 +35,8 @@ 
 				<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')))
 		);
 	}
 
@@ -47,7 +47,7 @@ 
 	 * @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 ||
@@ -64,11 +64,11 @@ 
 	 * @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)
 		);
 	}
 
@@ -79,11 +79,11 @@ 
 	 * @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)
 		);
 	}
 
@@ -94,11 +94,11 @@ 
 	 * @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)
 		);
 	}
 
@@ -109,11 +109,11 @@ 
 	 * @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)
 		);
 	}
 
@@ -124,11 +124,11 @@ 
 	 * @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)
 		);
 	}
 
@@ -141,13 +141,13 @@ 
 	 * @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)
 		);
 	}
 
@@ -161,12 +161,12 @@ 
 		// NOTE: updates to this function should be added to are_keys_set()
 		// in includes/payment-methods/class-wc-stripe-payment-request.php
 
-		if ( $this->testmode ) {
-			return preg_match( '/^pk_test_/', $this->publishable_key )
-				&& preg_match( '/^[rs]k_test_/', $this->secret_key );
+		if ($this->testmode) {
+			return preg_match('/^pk_test_/', $this->publishable_key)
+				&& preg_match('/^[rs]k_test_/', $this->secret_key);
 		} else {
-			return preg_match( '/^pk_live_/', $this->publishable_key )
-			    && preg_match( '/^[rs]k_live_/', $this->secret_key );
+			return preg_match('/^pk_live_/', $this->publishable_key)
+			    && preg_match('/^[rs]k_live_/', $this->secret_key);
 		}
 	}
 
@@ -176,7 +176,7 @@ 
 	 * @since 4.1.3
 	 */
 	public function is_available() {
-		if ( 'yes' === $this->enabled ) {
+		if ('yes' === $this->enabled) {
 			return $this->are_keys_set();
 		}
 
@@ -191,12 +191,12 @@ 
 	 * @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')
 		);
 	}
 
@@ -240,10 +240,10 @@ 
 	 * @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)));
 		}
 	}
 
@@ -253,14 +253,14 @@ 
 	 * @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);
 	}
 
 	/**
@@ -269,15 +269,15 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function get_stripe_customer_id( $order ) {
-		$customer = get_user_option( '_stripe_customer_id', WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->customer_user : $order->get_customer_id() );
+	public function get_stripe_customer_id($order) {
+		$customer = get_user_option('_stripe_customer_id', WC_Stripe_Helper::is_wc_lt('3.0') ? $order->customer_user : $order->get_customer_id());
 
-		if ( empty( $customer ) ) {
+		if (empty($customer)) {
 			// Try to get it via the order.
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				return get_post_meta( $order->id, '_stripe_customer_id', true );
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				return get_post_meta($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;
@@ -294,23 +294,23 @@ 
 	 * @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();
 			}
 
-			$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+			$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
 			$args = array(
 				'utm_nooverride' => '1',
 				'order_id'       => $order_id,
 			);
 
-			return wp_sanitize_redirect( esc_url_raw( add_query_arg( $args, $this->get_return_url( $order ) ) ) );
+			return wp_sanitize_redirect(esc_url_raw(add_query_arg($args, $this->get_return_url($order))));
 		}
 
-		return wp_sanitize_redirect( esc_url_raw( add_query_arg( array( 'utm_nooverride' => '1' ), $this->get_return_url() ) ) );
+		return wp_sanitize_redirect(esc_url_raw(add_query_arg(array('utm_nooverride' => '1'), $this->get_return_url())));
 	}
 
 	/**
@@ -318,8 +318,8 @@ 
 	 * @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)));
 	}
 
 	/**
@@ -331,34 +331,33 @@ 
 	 * @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_wc_lt( '3.0' ) ? $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_wc_lt('3.0') ? $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() );
-		$billing_email            = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_email : $order->get_billing_email();
-		$billing_first_name       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_first_name : $order->get_billing_first_name();
-		$billing_last_name        = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_last_name : $order->get_billing_last_name();
+		$post_data['description'] = sprintf(__('%1$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_wc_lt('3.0') ? $order->billing_email : $order->get_billing_email();
+		$billing_first_name       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_first_name : $order->get_billing_first_name();
+		$billing_last_name        = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_last_name : $order->get_billing_last_name();
 
-		if ( ! empty( $billing_email ) && apply_filters( 'wc_stripe_send_stripe_receipt', false ) ) {
+		if ( ! empty($billing_email) && apply_filters('wc_stripe_send_stripe_receipt', false)) {
 			$post_data['receipt_email'] = $billing_email;
 		}
 
-		switch ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $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_wc_lt('3.0') ? $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;
 		}
@@ -366,25 +365,25 @@ 
 		$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_wc_lt( '3.0' ) ? $order->id : $order->get_id() ) ) {
+		if ($this->has_subscription(WC_Stripe_Helper::is_wc_lt('3.0') ? $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;
 		}
 
@@ -396,72 +395,72 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_payment_request', $post_data, $order, $prepared_source );
+		return apply_filters('wc_stripe_generate_payment_request', $post_data, $order, $prepared_source);
 	}
 
 	/**
 	 * Store extra meta data for an order from a Stripe Response.
 	 */
-	public function process_response( $response, $order ) {
-		WC_Stripe_Logger::log( 'Processing response: ' . print_r( $response, true ) );
+	public function process_response($response, $order) {
+		WC_Stripe_Logger::log('Processing response: ' . print_r($response, true));
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		$captured = ( isset( $response->captured ) && $response->captured ) ? 'yes' : 'no';
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		$captured = (isset($response->captured) && $response->captured) ? 'yes' : 'no';
 
 		// Store charge data.
-		WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $order_id, '_stripe_charge_captured', $captured ) : $order->update_meta_data( '_stripe_charge_captured', $captured );
+		WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($order_id, '_stripe_charge_captured', $captured) : $order->update_meta_data('_stripe_charge_captured', $captured);
 
-		if ( isset( $response->balance_transaction ) ) {
-			$this->update_fees( $order, is_string( $response->balance_transaction ) ? $response->balance_transaction : $response->balance_transaction->id );
+		if (isset($response->balance_transaction)) {
+			$this->update_fees($order, is_string($response->balance_transaction) ? $response->balance_transaction : $response->balance_transaction->id);
 		}
 
-		if ( 'yes' === $captured ) {
+		if ('yes' === $captured) {
 			/**
 			 * Charge can be captured but in a pending state. Payment methods
 			 * that are asynchronous may take couple days to clear. Webhook will
 			 * take care of the status changes.
 			 */
-			if ( 'pending' === $response->status ) {
-				$order_stock_reduced = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, '_order_stock_reduced', true ) : $order->get_meta( '_order_stock_reduced', true );
+			if ('pending' === $response->status) {
+				$order_stock_reduced = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, '_order_stock_reduced', true) : $order->get_meta('_order_stock_reduced', true);
 
-				if ( ! $order_stock_reduced ) {
-					WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->reduce_order_stock() : wc_reduce_stock_levels( $order_id );
+				if ( ! $order_stock_reduced) {
+					WC_Stripe_Helper::is_wc_lt('3.0') ? $order->reduce_order_stock() : wc_reduce_stock_levels($order_id);
 				}
 
-				WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $order_id, '_transaction_id', $response->id ) : $order->set_transaction_id( $response->id );
+				WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($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_wc_lt( '3.0' ) ? update_post_meta( $order_id, '_transaction_id', $response->id ) : $order->set_transaction_id( $response->id );
+			WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($order_id, '_transaction_id', $response->id) : $order->set_transaction_id($response->id);
 
-			if ( $order->has_status( array( 'pending', 'failed' ) ) ) {
-				WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->reduce_order_stock() : wc_reduce_stock_levels( $order_id );
+			if ($order->has_status(array('pending', 'failed'))) {
+				WC_Stripe_Helper::is_wc_lt('3.0') ? $order->reduce_order_stock() : wc_reduce_stock_levels($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;
 	}
@@ -474,10 +473,10 @@ 
 	 * @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);
 		}
 	}
 
@@ -489,36 +488,36 @@ 
 	 * @param object $order
 	 * @return object $details
 	 */
-	public function get_owner_details( $order ) {
-		$billing_first_name = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_first_name : $order->get_billing_first_name();
-		$billing_last_name  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_last_name : $order->get_billing_last_name();
+	public function get_owner_details($order) {
+		$billing_first_name = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_first_name : $order->get_billing_first_name();
+		$billing_last_name  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_last_name : $order->get_billing_last_name();
 
 		$details = array();
 
 		$name  = $billing_first_name . ' ' . $billing_last_name;
-		$email = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_email : $order->get_billing_email();
-		$phone = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_phone : $order->get_billing_phone();
+		$email = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_email : $order->get_billing_email();
+		$phone = WC_Stripe_Helper::is_wc_lt('3.0') ? $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;
 		}
 
-		$details['address']['line1']       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_1 : $order->get_billing_address_1();
-		$details['address']['line2']       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_2 : $order->get_billing_address_2();
-		$details['address']['state']       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_state : $order->get_billing_state();
-		$details['address']['city']        = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_city : $order->get_billing_city();
-		$details['address']['postal_code'] = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_postcode : $order->get_billing_postcode();
-		$details['address']['country']     = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_country : $order->get_billing_country();
+		$details['address']['line1']       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_1 : $order->get_billing_address_1();
+		$details['address']['line2']       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_2 : $order->get_billing_address_2();
+		$details['address']['state']       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_state : $order->get_billing_state();
+		$details['address']['city']        = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_city : $order->get_billing_city();
+		$details['address']['postal_code'] = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_postcode : $order->get_billing_postcode();
+		$details['address']['country']     = WC_Stripe_Helper::is_wc_lt('3.0') ? $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);
 	}
 
 	/**
@@ -527,15 +526,15 @@ 
 	 * @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;
@@ -548,10 +547,10 @@ 
 	 * @param object $source_object
 	 * @return bool
 	 */
-	public function is_prepaid_card( $source_object ) {
+	public function is_prepaid_card($source_object) {
 		return (
 			$source_object
-			&& ( 'token' === $source_object->object || 'source' === $source_object->object )
+			&& ('token' === $source_object->object || 'source' === $source_object->object)
 			&& 'prepaid' === $source_object->card->funding
 		);
 	}
@@ -563,8 +562,8 @@ 
 	 * @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));
 	}
 
 	/**
@@ -574,9 +573,9 @@ 
 	 * @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']);
 	}
 
 	/**
@@ -592,64 +591,64 @@ 
 	 * @throws Exception When card was not added or for and invalid card.
 	 * @return object
 	 */
-	public function prepare_source( $user_id, $force_save_source = false, $existing_customer_id = null ) {
-		$customer = new WC_Stripe_Customer( $user_id );
-		if ( ! empty( $existing_customer_id ) ) {
-			$customer->set_id( $existing_customer_id );
+	public function prepare_source($user_id, $force_save_source = false, $existing_customer_id = null) {
+		$customer = new WC_Stripe_Customer($user_id);
+		if ( ! empty($existing_customer_id)) {
+			$customer->set_id($existing_customer_id);
 		}
 
-		$force_save_source = apply_filters( 'wc_stripe_force_save_source', $force_save_source, $customer );
+		$force_save_source = apply_filters('wc_stripe_force_save_source', $force_save_source, $customer);
 		$source_object     = '';
 		$source_id         = '';
 		$wc_token_id       = false;
-		$payment_method    = isset( $_POST['payment_method'] ) ? wc_clean( $_POST['payment_method'] ) : 'stripe';
+		$payment_method    = isset($_POST['payment_method']) ? wc_clean($_POST['payment_method']) : 'stripe';
 		$is_token          = false;
 
 		// New CC info was entered and we have a new source to process.
-		if ( ! empty( $_POST['stripe_source'] ) ) {
-			$source_object = self::get_source_object( wc_clean( $_POST['stripe_source'] ) );
+		if ( ! empty($_POST['stripe_source'])) {
+			$source_object = self::get_source_object(wc_clean($_POST['stripe_source']));
 			$source_id     = $source_object->id;
 
 			// This checks to see if customer opted to save the payment method to file.
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			/**
 			 * This is true if the user wants to store the card to their account.
 			 * Criteria to save to file is they are logged in, they opted to save or product requirements and the source is
 			 * actually reusable. Either that or force_save_source is true.
 			 */
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage ) || $force_save_source ) {
-				$response = $customer->add_source( $source_object->id );
+			if (($user_id && $this->saved_cards && $maybe_saved_card && 'reusable' === $source_object->usage) || $force_save_source) {
+				$response = $customer->add_source($source_object->id);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $this->get_localized_error_message_from_response( $response ) );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $this->get_localized_error_message_from_response($response));
 				}
 			}
-		} elseif ( $this->is_using_saved_payment_method() ) {
+		} elseif ($this->is_using_saved_payment_method()) {
 			// Use an existing token, and then process the payment.
-			$wc_token_id = wc_clean( $_POST[ 'wc-' . $payment_method . '-payment-token' ] );
-			$wc_token    = WC_Payment_Tokens::get( $wc_token_id );
+			$wc_token_id = wc_clean($_POST['wc-' . $payment_method . '-payment-token']);
+			$wc_token    = WC_Payment_Tokens::get($wc_token_id);
 
-			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id() ) {
-				WC()->session->set( 'refresh_totals', true );
-				throw new WC_Stripe_Exception( 'Invalid payment method', __( 'Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe' ) );
+			if ( ! $wc_token || $wc_token->get_user_id() !== get_current_user_id()) {
+				WC()->session->set('refresh_totals', true);
+				throw new WC_Stripe_Exception('Invalid payment method', __('Invalid payment method. Please input a new card number.', 'woocommerce-gateway-stripe'));
 			}
 
 			$source_id = $wc_token->get_token();
 
-			if ( $this->is_type_legacy_card( $source_id ) ) {
+			if ($this->is_type_legacy_card($source_id)) {
 				$is_token = true;
 			}
-		} elseif ( isset( $_POST['stripe_token'] ) && 'new' !== $_POST['stripe_token'] ) {
-			$stripe_token     = wc_clean( $_POST['stripe_token'] );
-			$maybe_saved_card = isset( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] ) && ! empty( $_POST[ 'wc-' . $payment_method . '-new-payment-method' ] );
+		} elseif (isset($_POST['stripe_token']) && 'new' !== $_POST['stripe_token']) {
+			$stripe_token     = wc_clean($_POST['stripe_token']);
+			$maybe_saved_card = isset($_POST['wc-' . $payment_method . '-new-payment-method']) && ! empty($_POST['wc-' . $payment_method . '-new-payment-method']);
 
 			// This is true if the user wants to store the card to their account.
-			if ( ( $user_id && $this->saved_cards && $maybe_saved_card ) || $force_save_source ) {
-				$response = $customer->add_source( $stripe_token );
+			if (($user_id && $this->saved_cards && $maybe_saved_card) || $force_save_source) {
+				$response = $customer->add_source($stripe_token);
 
-				if ( ! empty( $response->error ) ) {
-					throw new WC_Stripe_Exception( print_r( $response, true ), $response->error->message );
+				if ( ! empty($response->error)) {
+					throw new WC_Stripe_Exception(print_r($response, true), $response->error->message);
 				}
 			} else {
 				$source_id    = $stripe_token;
@@ -658,15 +657,15 @@ 
 		}
 
 		$customer_id = $customer->get_id();
-		if ( ! $customer_id ) {
-			$customer->set_id( $customer->create_customer() );
+		if ( ! $customer_id) {
+			$customer->set_id($customer->create_customer());
 			$customer_id = $customer->get_id();
 		} else {
 			$customer_id = $customer->update_customer();
 		}
 
-		if ( empty( $source_object ) && ! $is_token ) {
-			$source_object = self::get_source_object( $source_id );
+		if (empty($source_object) && ! $is_token) {
+			$source_object = self::get_source_object($source_id);
 		}
 
 		return (object) array(
@@ -690,39 +689,39 @@ 
 	 * @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 ) {
-			$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		if ($order) {
+			$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $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_wc_lt( '3.0' ) ? get_post_meta( $order_id, '_stripe_source_id', true ) : $order->get_meta( '_stripe_source_id', true );
+			$source_id = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($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_wc_lt( '3.0' ) ? get_post_meta( $order_id, '_stripe_card_id', true ) : $order->get_meta( '_stripe_card_id', true );
+			if (empty($source_id)) {
+				$source_id = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($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_wc_lt( '3.0' ) ? update_post_meta( $order_id, '_stripe_source_id', $source_id ) : $order->update_meta_data( '_stripe_source_id', $source_id );
+				WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($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.
@@ -747,27 +746,27 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $source Source information.
 	 */
-	public function save_source_to_order( $order, $source ) {
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+	public function save_source_to_order($order, $source) {
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
 		// Store source in the order.
-		if ( $source->customer ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_stripe_customer_id', $source->customer );
+		if ($source->customer) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				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_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_stripe_source_id', $source->source );
+		if ($source->source) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				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();
 		}
 	}
@@ -781,38 +780,38 @@ 
 	 * @param object $order The order object
 	 * @param int $balance_transaction_id
 	 */
-	public function update_fees( $order, $balance_transaction_id ) {
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+	public function update_fees($order, $balance_transaction_id) {
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $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);
 
-				$currency = ! empty( $balance_transaction->currency ) ? strtoupper( $balance_transaction->currency ) : null;
-				WC_Stripe_Helper::update_stripe_currency( $order, $currency );
+				$currency = ! empty($balance_transaction->currency) ? strtoupper($balance_transaction->currency) : null;
+				WC_Stripe_Helper::update_stripe_currency($order, $currency);
 
-				if ( is_callable( array( $order, 'save' ) ) ) {
+				if (is_callable(array($order, 'save'))) {
 					$order->save();
 				}
 			}
 		} else {
-			WC_Stripe_Logger::log( "Unable to update fees/net meta for order: {$order_id}" );
+			WC_Stripe_Logger::log("Unable to update fees/net meta for order: {$order_id}");
 		}
 	}
 
@@ -825,99 +824,99 @@ 
 	 * @param  float $amount
 	 * @return bool
 	 */
-	public function process_refund( $order_id, $amount = null, $reason = '' ) {
-		$order = wc_get_order( $order_id );
+	public function process_refund($order_id, $amount = null, $reason = '') {
+		$order = wc_get_order($order_id);
 
-		if ( ! $order ) {
+		if ( ! $order) {
 			return false;
 		}
 
 		$request = array();
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			$order_currency = get_post_meta( $order_id, '_order_currency', true );
-			$captured       = get_post_meta( $order_id, '_stripe_charge_captured', true );
-			$charge_id      = get_post_meta( $order_id, '_transaction_id', true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			$order_currency = get_post_meta($order_id, '_order_currency', true);
+			$captured       = get_post_meta($order_id, '_stripe_charge_captured', true);
+			$charge_id      = get_post_meta($order_id, '_transaction_id', true);
 		} else {
 			$order_currency = $order->get_currency();
-			$captured       = $order->get_meta( '_stripe_charge_captured', true );
+			$captured       = $order->get_meta('_stripe_charge_captured', true);
 			$charge_id      = $order->get_transaction_id();
 		}
 
-		if ( ! $charge_id ) {
+		if ( ! $charge_id) {
 			return false;
 		}
 
-		if ( ! is_null( $amount ) ) {
-			$request['amount'] = WC_Stripe_Helper::get_stripe_amount( $amount, $order_currency );
+		if ( ! is_null($amount)) {
+			$request['amount'] = WC_Stripe_Helper::get_stripe_amount($amount, $order_currency);
 		}
 
 		// If order is only authorized, don't pass amount.
-		if ( 'yes' !== $captured ) {
-			unset( $request['amount'] );
+		if ('yes' !== $captured) {
+			unset($request['amount']);
 		}
 
-		if ( $reason ) {
+		if ($reason) {
 			$request['metadata'] = array(
 				'reason' => $reason,
 			);
 		}
 
 		$request['charge'] = $charge_id;
-		WC_Stripe_Logger::log( "Info: Beginning refund for order {$charge_id} for the amount of {$amount}" );
+		WC_Stripe_Logger::log("Info: Beginning refund for order {$charge_id} for the amount of {$amount}");
 
-		$request = apply_filters( 'wc_stripe_refund_request', $request, $order );
+		$request = apply_filters('wc_stripe_refund_request', $request, $order);
 
-		$intent = $this->get_intent_from_order( $order );
+		$intent = $this->get_intent_from_order($order);
 		$intent_cancelled = false;
-		if ( $intent ) {
+		if ($intent) {
 			// If the order has a Payment Intent pending capture, then the Intent itself must be refunded (cancelled), not the Charge
-			if ( ! empty( $intent->error ) ) {
+			if ( ! empty($intent->error)) {
 				$response = $intent;
 				$intent_cancelled = true;
-			} elseif ( 'requires_capture' === $intent->status ) {
+			} elseif ('requires_capture' === $intent->status) {
 				$result = WC_Stripe_API::request(
 					array(),
 					'payment_intents/' . $intent->id . '/cancel'
 				);
 				$intent_cancelled = true;
 
-				if ( ! empty( $result->error ) ) {
+				if ( ! empty($result->error)) {
 					$response = $result;
 				} else {
-					$charge = end( $result->charges->data );
-					$response = end( $charge->refunds->data );
+					$charge = end($result->charges->data);
+					$response = end($charge->refunds->data);
 				}
 			}
 		}
 
-		if ( ! $intent_cancelled ) {
-			$response = WC_Stripe_API::request( $request, 'refunds' );
+		if ( ! $intent_cancelled) {
+			$response = WC_Stripe_API::request($request, 'refunds');
 		}
 
-		if ( ! empty( $response->error ) ) {
-			WC_Stripe_Logger::log( 'Error: ' . $response->error->message );
+		if ( ! empty($response->error)) {
+			WC_Stripe_Logger::log('Error: ' . $response->error->message);
 
 			return $response;
 
-		} elseif ( ! empty( $response->id ) ) {
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? 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_wc_lt('3.0') ? 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_wc_lt( '3.0' ) ? $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_wc_lt('3.0') ? $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;
 		}
@@ -932,46 +931,46 @@ 
 	 */
 	public function add_payment_method() {
 		$error     = false;
-		$error_msg = __( 'There was a problem adding the payment method.', 'woocommerce-gateway-stripe' );
+		$error_msg = __('There was a problem adding the payment method.', 'woocommerce-gateway-stripe');
 		$source_id = '';
 
-		if ( empty( $_POST['stripe_source'] ) && empty( $_POST['stripe_token'] ) || ! is_user_logged_in() ) {
+		if (empty($_POST['stripe_source']) && empty($_POST['stripe_token']) || ! is_user_logged_in()) {
 			$error = true;
 		}
 
-		$stripe_customer = new WC_Stripe_Customer( get_current_user_id() );
+		$stripe_customer = new WC_Stripe_Customer(get_current_user_id());
 
-		$source = ! empty( $_POST['stripe_source'] ) ? wc_clean( $_POST['stripe_source'] ) : '';
+		$source = ! empty($_POST['stripe_source']) ? wc_clean($_POST['stripe_source']) : '';
 
-		$source_object = WC_Stripe_API::retrieve( 'sources/' . $source );
+		$source_object = WC_Stripe_API::retrieve('sources/' . $source);
 
-		if ( isset( $source_object ) ) {
-			if ( ! empty( $source_object->error ) ) {
+		if (isset($source_object)) {
+			if ( ! empty($source_object->error)) {
 				$error = true;
 			}
 
 			$source_id = $source_object->id;
-		} elseif ( isset( $_POST['stripe_token'] ) ) {
-			$source_id = wc_clean( $_POST['stripe_token'] );
+		} elseif (isset($_POST['stripe_token'])) {
+			$source_id = wc_clean($_POST['stripe_token']);
 		}
 
-		$response = $stripe_customer->add_source( $source_id );
+		$response = $stripe_customer->add_source($source_id);
 
-		if ( ! $response || is_wp_error( $response ) || ! empty( $response->error ) ) {
+		if ( ! $response || is_wp_error($response) || ! empty($response->error)) {
 			$error = true;
 		}
 
-		if ( $error ) {
-			wc_add_notice( $error_msg, 'error' );
-			WC_Stripe_Logger::log( 'Add payment method Error: ' . $error_msg );
+		if ($error) {
+			wc_add_notice($error_msg, 'error');
+			WC_Stripe_Logger::log('Add payment method Error: ' . $error_msg);
 			return;
 		}
 
-		do_action( 'wc_stripe_add_payment_method_' . $_POST['payment_method'] . '_success', $source_id, $source_object );
+		do_action('wc_stripe_add_payment_method_' . $_POST['payment_method'] . '_success', $source_id, $source_object);
 
 		return array(
 			'result'   => 'success',
-			'redirect' => wc_get_endpoint_url( 'payment-methods' ),
+			'redirect' => wc_get_endpoint_url('payment-methods'),
 		);
 	}
 
@@ -988,10 +987,10 @@ 
 		 * 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;
@@ -1005,9 +1004,9 @@ 
 	 * @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;
@@ -1021,8 +1020,8 @@ 
 	 * @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;
 		}
 
@@ -1036,27 +1035,27 @@ 
 	 * @param object   $prepared_source The source that is used for the payment.
 	 * @return array                    The arguments for the request.
 	 */
-	public function generate_create_intent_request( $order, $prepared_source ) {
+	public function generate_create_intent_request($order, $prepared_source) {
 		// The request for a charge contains metadata for the intent.
-		$full_request = $this->generate_payment_request( $order, $prepared_source );
+		$full_request = $this->generate_payment_request($order, $prepared_source);
 
 		$request = array(
 			'source'               => $prepared_source->source,
-			'amount'               => WC_Stripe_Helper::get_stripe_amount( $order->get_total() ),
-			'currency'             => strtolower( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->get_order_currency() : $order->get_currency() ),
+			'amount'               => WC_Stripe_Helper::get_stripe_amount($order->get_total()),
+			'currency'             => strtolower(WC_Stripe_Helper::is_wc_lt('3.0') ? $order->get_order_currency() : $order->get_currency()),
 			'description'          => $full_request['description'],
 			'metadata'             => $full_request['metadata'],
-			'capture_method'       => ( 'true' === $full_request['capture'] ) ? 'automatic' : 'manual',
+			'capture_method'       => ('true' === $full_request['capture']) ? 'automatic' : 'manual',
 			'payment_method_types' => array(
 				'card',
 			),
 		);
 
-		if ( $prepared_source->customer ) {
+		if ($prepared_source->customer) {
 			$request['customer'] = $prepared_source->customer;
 		}
 
-		if ( isset( $full_request['statement_descriptor'] ) ) {
+		if (isset($full_request['statement_descriptor'])) {
 			$request['statement_descriptor'] = $full_request['statement_descriptor'];
 		}
 
@@ -1068,7 +1067,7 @@ 
 		 * @param WC_Order $order
 		 * @param object $source
 		 */
-		return apply_filters( 'wc_stripe_generate_create_intent_request', $request, $order, $prepared_source );
+		return apply_filters('wc_stripe_generate_create_intent_request', $request, $order, $prepared_source);
 	}
 
 	/**
@@ -1077,27 +1076,27 @@ 
 	 * @param WC_Order $order The order that is being paid for.
 	 * @return array          The level 3 data to send to Stripe.
 	 */
-	public function get_level3_data_from_order( $order ) {
+	public function get_level3_data_from_order($order) {
 		// WC Versions before 3.0 don't support postcodes and are
 		// incompatible with level3 data.
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
 			return array();
 		}
 
 		// Get the order items. Don't need their keys, only their values.
 		// Order item IDs are used as keys in the original order items array.
-		$order_items = array_values( $order->get_items() );
+		$order_items = array_values($order->get_items());
 		$currency    = $order->get_currency();
 
-		$stripe_line_items = array_map(function( $item ) use ( $currency ) {
+		$stripe_line_items = array_map(function($item) use ($currency) {
 			$product_id          = $item->get_variation_id()
 				? $item->get_variation_id()
 				: $item->get_product_id();
-			$product_description = substr( $item->get_name(), 0, 26 );
+			$product_description = substr($item->get_name(), 0, 26);
 			$quantity            = $item->get_quantity();
-			$unit_cost           = WC_Stripe_Helper::get_stripe_amount( ( $item->get_subtotal() / $quantity ), $currency );
-			$tax_amount          = WC_Stripe_Helper::get_stripe_amount( $item->get_total_tax(), $currency );
-			$discount_amount     = WC_Stripe_Helper::get_stripe_amount( $item->get_subtotal() - $item->get_total(), $currency );
+			$unit_cost           = WC_Stripe_Helper::get_stripe_amount(($item->get_subtotal() / $quantity), $currency);
+			$tax_amount          = WC_Stripe_Helper::get_stripe_amount($item->get_total_tax(), $currency);
+			$discount_amount     = WC_Stripe_Helper::get_stripe_amount($item->get_subtotal() - $item->get_total(), $currency);
 
 			return (object) array(
 				'product_code'        => (string) $product_id, // Up to 12 characters that uniquely identify the product.
@@ -1112,19 +1111,19 @@ 
 		$level3_data = array(
 			'merchant_reference'   => $order->get_id(), // An alphanumeric string of up to  characters in length. This unique value is assigned by the merchant to identify the order. Also known as an “Order ID”.
 
-			'shipping_amount'      => WC_Stripe_Helper::get_stripe_amount( $order->get_shipping_total() + $order->get_shipping_tax(), $currency), // The shipping cost, in cents, as a non-negative integer.
+			'shipping_amount'      => WC_Stripe_Helper::get_stripe_amount($order->get_shipping_total() + $order->get_shipping_tax(), $currency), // The shipping cost, in cents, as a non-negative integer.
 			'line_items'           => $stripe_line_items,
 		);
 
 		// The customer’s U.S. shipping ZIP code.
 		$shipping_address_zip = $order->get_shipping_postcode();
-		if ( $this->is_valid_us_zip_code( $shipping_address_zip ) ) {
+		if ($this->is_valid_us_zip_code($shipping_address_zip)) {
 			$level3_data['shipping_address_zip'] = $shipping_address_zip;
 		}
 
 		// The merchant’s U.S. shipping ZIP code.
-		$store_postcode = get_option( 'woocommerce_store_postcode' );
-		if ( $this->is_valid_us_zip_code( $store_postcode ) ) {
+		$store_postcode = get_option('woocommerce_store_postcode');
+		if ($this->is_valid_us_zip_code($store_postcode)) {
 			$level3_data['shipping_from_zip'] = $store_postcode;
 		}
 
@@ -1138,20 +1137,20 @@ 
 	 * @param object   $prepared_source The source that is used for the payment.
 	 * @return object                   An intent or an error.
 	 */
-	public function create_intent( $order, $prepared_source ) {
-		$request = $this->generate_create_intent_request( $order, $prepared_source );
+	public function create_intent($order, $prepared_source) {
+		$request = $this->generate_create_intent_request($order, $prepared_source);
 
 		// Create an intent that awaits an action.
-		$intent = WC_Stripe_API::request( $request, 'payment_intents' );
-		if ( ! empty( $intent->error ) ) {
+		$intent = WC_Stripe_API::request($request, 'payment_intents');
+		if ( ! empty($intent->error)) {
 			return $intent;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id initiated for order $order_id" );
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id initiated for order $order_id");
 
 		// Save the intent ID to the order.
-		$this->save_intent_to_order( $order, $intent );
+		$this->save_intent_to_order($order, $intent);
 
 		return $intent;
 	}
@@ -1164,27 +1163,27 @@ 
 	 * @param object   $prepared_source Currently selected source.
 	 * @return object                   An updated intent.
 	 */
-	public function update_existing_intent( $intent, $order, $prepared_source ) {
+	public function update_existing_intent($intent, $order, $prepared_source) {
 		$request = array();
 
-		if ( $prepared_source->source !== $intent->source ) {
+		if ($prepared_source->source !== $intent->source) {
 			$request['source'] = $prepared_source->source;
 		}
 
-		$new_amount = WC_Stripe_Helper::get_stripe_amount( $order->get_total() );
-		if ( $intent->amount !== $new_amount ) {
+		$new_amount = WC_Stripe_Helper::get_stripe_amount($order->get_total());
+		if ($intent->amount !== $new_amount) {
 			$request['amount'] = $new_amount;
 		}
 
-		if ( $prepared_source->customer && $intent->customer !== $prepared_source->customer ) {
+		if ($prepared_source->customer && $intent->customer !== $prepared_source->customer) {
 			$request['customer'] = $prepared_source->customer;
 		}
 
-		if ( empty( $request ) ) {
+		if (empty($request)) {
 			return $intent;
 		}
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		return WC_Stripe_API::request_with_level3_data(
 			$request,
 			"payment_intents/$intent->id",
@@ -1202,8 +1201,8 @@ 
 	 * @param object   $prepared_source The source that is being charged.
 	 * @return object                   Either an error or the updated intent.
 	 */
-	public function confirm_intent( $intent, $order, $prepared_source ) {
-		if ( 'requires_confirmation' !== $intent->status ) {
+	public function confirm_intent($intent, $order, $prepared_source) {
+		if ('requires_confirmation' !== $intent->status) {
 			return $intent;
 		}
 
@@ -1212,7 +1211,7 @@ 
 			'source' => $prepared_source->source,
 		);
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		$confirmed_intent = WC_Stripe_API::request_with_level3_data(
 			$confirm_request,
 			"payment_intents/$intent->id/confirm",
@@ -1220,16 +1219,16 @@ 
 			$order
 		);
 
-		if ( ! empty( $confirmed_intent->error ) ) {
+		if ( ! empty($confirmed_intent->error)) {
 			return $confirmed_intent;
 		}
 
 		// Save a note about the status of the intent.
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		if ( 'succeeded' === $confirmed_intent->status ) {
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id succeeded for order $order_id" );
-		} elseif ( 'requires_action' === $confirmed_intent->status ) {
-			WC_Stripe_Logger::log( "Stripe PaymentIntent $intent->id requires authentication for order $order_id" );
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		if ('succeeded' === $confirmed_intent->status) {
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id succeeded for order $order_id");
+		} elseif ('requires_action' === $confirmed_intent->status) {
+			WC_Stripe_Logger::log("Stripe PaymentIntent $intent->id requires authentication for order $order_id");
 		}
 
 		return $confirmed_intent;
@@ -1242,16 +1241,16 @@ 
 	 * @param WC_Order $order For to which the source applies.
 	 * @param stdClass $intent Payment intent information.
 	 */
-	public function save_intent_to_order( $order, $intent ) {
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+	public function save_intent_to_order($order, $intent) {
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			update_post_meta( $order_id, '_stripe_intent_id', $intent->id );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			update_post_meta($order_id, '_stripe_intent_id', $intent->id);
 		} else {
-			$order->update_meta_data( '_stripe_intent_id', $intent->id );
+			$order->update_meta_data('_stripe_intent_id', $intent->id);
 		}
 
-		if ( is_callable( array( $order, 'save' ) ) ) {
+		if (is_callable(array($order, 'save'))) {
 			$order->save();
 		}
 	}
@@ -1263,23 +1262,23 @@ 
 	 * @param WC_Order $order The order to retrieve an intent for.
 	 * @return obect|bool     Either the intent object or `false`.
 	 */
-	public function get_intent_from_order( $order ) {
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			return $this->pre_3_0_get_intent_from_order( $order );
+	public function get_intent_from_order($order) {
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			return $this->pre_3_0_get_intent_from_order($order);
 		}
 
 		$order_id  = $order->get_id();
-		$intent_id = $order->get_meta( '_stripe_intent_id' );
+		$intent_id = $order->get_meta('_stripe_intent_id');
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'payment_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('payment_intents', $intent_id);
 		}
 
 		// The order doesn't have a payment intent, but it may have a setup intent.
-		$intent_id = $order->get_meta( '_stripe_setup_intent' );
+		$intent_id = $order->get_meta('_stripe_setup_intent');
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'setup_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('setup_intents', $intent_id);
 		}
 
 		return false;
@@ -1291,19 +1290,19 @@ 
 	 * @param WC_Order $order The order to retrieve an intent for.
 	 * @return obect|bool     Either the intent object or `false`.
 	 */
-	private function pre_3_0_get_intent_from_order( $order ) {
+	private function pre_3_0_get_intent_from_order($order) {
 		$order_id  = $order->id;
-		$intent_id = get_post_meta( $order_id, '_stripe_intent_id', true );
+		$intent_id = get_post_meta($order_id, '_stripe_intent_id', true);
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'payment_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('payment_intents', $intent_id);
 		}
 
 		// The order doesn't have a payment intent, but it may have a setup intent.
-		$intent_id = get_post_meta( $order_id, '_stripe_setup_intent', true );
+		$intent_id = get_post_meta($order_id, '_stripe_setup_intent', true);
 
-		if ( $intent_id ) {
-			return $this->get_intent( 'setup_intents', $intent_id );
+		if ($intent_id) {
+			return $this->get_intent('setup_intents', $intent_id);
 		}
 
 		return false;
@@ -1317,15 +1316,15 @@ 
 	 * @return object|bool 			Either the intent object or `false`.
 	 * @throws Exception 			Throws exception for unknown $intent_type.
 	 */
-	private function get_intent( $intent_type, $intent_id ) {
-		if ( ! in_array( $intent_type, [ 'payment_intents', 'setup_intents' ] ) ) {
-			throw new Exception( "Failed to get intent of type $intent_type. Type is not allowed" );
+	private function get_intent($intent_type, $intent_id) {
+		if ( ! in_array($intent_type, ['payment_intents', 'setup_intents'])) {
+			throw new Exception("Failed to get intent of type $intent_type. Type is not allowed");
 		}
 
-		$response = WC_Stripe_API::request( array(), "$intent_type/$intent_id", 'GET' );
+		$response = WC_Stripe_API::request(array(), "$intent_type/$intent_id", 'GET');
 
-		if ( $response && isset( $response->{ 'error' } ) ) {
-			$error_response_message = print_r( $response, true );
+		if ($response && isset($response->{ 'error' } )) {
+			$error_response_message = print_r($response, true);
 			WC_Stripe_Logger::log("Failed to get Stripe intent $intent_type/$intent_id.");
 			WC_Stripe_Logger::log("Response: $error_response_message");
 			return false;
@@ -1342,18 +1341,18 @@ 
 	 * @param stdClass $intent The intent that is being processed.
 	 * @return bool            A flag that indicates whether the order is already locked.
 	 */
-	public function lock_order_payment( $order, $intent = null ) {
-		$order_id       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+	public function lock_order_payment($order, $intent = null) {
+		$order_id       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 		$transient_name = 'wc_stripe_processing_intent_' . $order_id;
-		$processing     = get_transient( $transient_name );
+		$processing     = get_transient($transient_name);
 
 		// Block the process if the same intent is already being handled.
-		if ( "-1" === $processing || ( isset( $intent->id ) && $processing === $intent->id ) ) {
+		if ("-1" === $processing || (isset($intent->id) && $processing === $intent->id)) {
 			return true;
 		}
 
 		// Save the new intent as a transient, eventually overwriting another one.
-		set_transient( $transient_name, empty( $intent ) ? '-1' : $intent->id, 5 * MINUTE_IN_SECONDS );
+		set_transient($transient_name, empty($intent) ? '-1' : $intent->id, 5 * MINUTE_IN_SECONDS);
 
 		return false;
 	}
@@ -1364,9 +1363,9 @@ 
 	 * @since 4.2
 	 * @param WC_Order $order The order that is being unlocked.
 	 */
-	public function unlock_order_payment( $order ) {
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		delete_transient( 'wc_stripe_processing_intent_' . $order_id );
+	public function unlock_order_payment($order) {
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		delete_transient('wc_stripe_processing_intent_' . $order_id);
 	}
 
 	/**
@@ -1376,9 +1375,9 @@ 
 	 * @param object $response The response from Stripe.
 	 * @return boolean Whether or not it's a 'authentication_required' error
 	 */
-	public function is_authentication_required_for_payment( $response ) {
-		return ( ! empty( $response->error ) && 'authentication_required' === $response->error->code )
-			|| ( ! empty( $response->last_payment_error ) && 'authentication_required' === $response->last_payment_error->code );
+	public function is_authentication_required_for_payment($response) {
+		return ( ! empty($response->error) && 'authentication_required' === $response->error->code)
+			|| ( ! empty($response->last_payment_error) && 'authentication_required' === $response->last_payment_error->code);
 	}
 
 	/**
@@ -1388,21 +1387,21 @@ 
 	 * @param object   $prepared_source The source, entered/chosen by the customer.
 	 * @return string                   The client secret of the intent, used for confirmation in JS.
 	 */
-	public function setup_intent( $order, $prepared_source ) {
-		$order_id     = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		$setup_intent = WC_Stripe_API::request( array(
+	public function setup_intent($order, $prepared_source) {
+		$order_id     = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		$setup_intent = WC_Stripe_API::request(array(
 			'payment_method' => $prepared_source->source,
 			'customer'       => $prepared_source->customer,
 			'confirm'        => 'true',
-		), 'setup_intents' );
+		), 'setup_intents');
 
-		if ( is_wp_error( $setup_intent ) ) {
-			WC_Stripe_Logger::log( "Unable to create SetupIntent for Order #$order_id: " . print_r( $setup_intent, true ) );
-		} elseif ( 'requires_action' === $setup_intent->status ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_stripe_setup_intent', $setup_intent->id );
+		if (is_wp_error($setup_intent)) {
+			WC_Stripe_Logger::log("Unable to create SetupIntent for Order #$order_id: " . print_r($setup_intent, true));
+		} elseif ('requires_action' === $setup_intent->status) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_stripe_setup_intent', $setup_intent->id);
 			} else {
-				$order->update_meta_data( '_stripe_setup_intent', $setup_intent->id );
+				$order->update_meta_data('_stripe_setup_intent', $setup_intent->id);
 				$order->save();
 			}
 
@@ -1418,12 +1417,12 @@ 
 	 * @param float    $amount          The amount to charge. If not specified, it will be read from the order.
 	 * @return object                   An intent or an error.
 	 */
-	public function create_and_confirm_intent_for_off_session( $order, $prepared_source, $amount = NULL ) {
+	public function create_and_confirm_intent_for_off_session($order, $prepared_source, $amount = NULL) {
 		// The request for a charge contains metadata for the intent.
-		$full_request = $this->generate_payment_request( $order, $prepared_source );
+		$full_request = $this->generate_payment_request($order, $prepared_source);
 
 		$request = array(
-			'amount'               => $amount ? WC_Stripe_Helper::get_stripe_amount( $amount, $full_request['currency'] ) : $full_request['amount'],
+			'amount'               => $amount ? WC_Stripe_Helper::get_stripe_amount($amount, $full_request['currency']) : $full_request['amount'],
 			'currency'             => $full_request['currency'],
 			'description'          => $full_request['description'],
 			'metadata'             => $full_request['metadata'],
@@ -1435,44 +1434,44 @@ 
 			'confirmation_method'  => 'automatic',
 		);
 
-		if ( isset( $full_request['statement_descriptor'] ) ) {
+		if (isset($full_request['statement_descriptor'])) {
 			$request['statement_descriptor'] = $full_request['statement_descriptor'];
 		}
 
-		if ( isset( $full_request['customer'] ) ) {
+		if (isset($full_request['customer'])) {
 			$request['customer'] = $full_request['customer'];
 		}
 
-		if ( isset( $full_request['source'] ) ) {
+		if (isset($full_request['source'])) {
 			$request['source'] = $full_request['source'];
 		}
 
-		$level3_data = $this->get_level3_data_from_order( $order );
+		$level3_data = $this->get_level3_data_from_order($order);
 		$intent = WC_Stripe_API::request_with_level3_data(
 			$request,
 			'payment_intents',
 			$level3_data,
 			$order
 		);
-		$is_authentication_required = $this->is_authentication_required_for_payment( $intent );
+		$is_authentication_required = $this->is_authentication_required_for_payment($intent);
 
-		if ( ! empty( $intent->error ) && ! $is_authentication_required ) {
+		if ( ! empty($intent->error) && ! $is_authentication_required) {
 			return $intent;
 		}
 
-		$intent_id      = ( ! empty( $intent->error )
+		$intent_id = ( ! empty($intent->error)
 			? $intent->error->payment_intent->id
 			: $intent->id
 		);
-		$payment_intent = ( ! empty( $intent->error )
+		$payment_intent = ( ! empty($intent->error)
 			? $intent->error->payment_intent
 			: $intent
 		);
-		$order_id       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
-		WC_Stripe_Logger::log( "Stripe PaymentIntent $intent_id initiated for order $order_id" );
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
+		WC_Stripe_Logger::log("Stripe PaymentIntent $intent_id initiated for order $order_id");
 
 		// Save the intent ID to the order.
-		$this->save_intent_to_order( $order, $payment_intent );
+		$this->save_intent_to_order($order, $payment_intent);
 
 		return $intent;
 	}
@@ -1483,13 +1482,13 @@ 
 	 * Fix renewal for existing subscriptions affected by https://github.com/woocommerce/woocommerce-gateway-stripe/issues/1072.
 	 * @param int $order_id subscription renewal order id.
 	 */
-	public function ensure_subscription_has_customer_id( $order_id ) {
-		$subscriptions_ids = wcs_get_subscriptions_for_order( $order_id, array( 'order_type' => 'any' ) );
-		foreach( $subscriptions_ids as $subscription_id => $subscription ) {
-			if ( ! metadata_exists( 'post', $subscription_id, '_stripe_customer_id' ) ) {
-				$stripe_customer = new WC_Stripe_Customer( $subscription->get_user_id() );
-				update_post_meta( $subscription_id, '_stripe_customer_id', $stripe_customer->get_id() );
-				update_post_meta( $order_id, '_stripe_customer_id', $stripe_customer->get_id() );
+	public function ensure_subscription_has_customer_id($order_id) {
+		$subscriptions_ids = wcs_get_subscriptions_for_order($order_id, array('order_type' => 'any'));
+		foreach ($subscriptions_ids as $subscription_id => $subscription) {
+			if ( ! metadata_exists('post', $subscription_id, '_stripe_customer_id')) {
+				$stripe_customer = new WC_Stripe_Customer($subscription->get_user_id());
+				update_post_meta($subscription_id, '_stripe_customer_id', $stripe_customer->get_id());
+				update_post_meta($order_id, '_stripe_customer_id', $stripe_customer->get_id());
 			}
 		}
 	}
@@ -1499,7 +1498,7 @@ 
 	 * @param string $zip The ZIP code to verify.
 	 * @return boolean
 	 */
-	public function is_valid_us_zip_code( $zip ) {
-		return ! empty( $zip ) && preg_match( '/^\d{5,5}(-\d{4,4})?$/', $zip );
+	public function is_valid_us_zip_code($zip) {
+		return ! empty($zip) && preg_match('/^\d{5,5}(-\d{4,4})?$/', $zip);
 	}
 }

includes/admin/class-wc-stripe-admin-notices.php

Spacing +105 added lines, -105 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -21,9 +21,9 @@ 
 	 * @since 4.1.0
 	 */
 	public function __construct() {
-		add_action( 'admin_notices', array( $this, 'admin_notices' ) );
-		add_action( 'wp_loaded', array( $this, 'hide_notices' ) );
-		add_action( 'woocommerce_stripe_updated', array( $this, 'stripe_updated' ) );
+		add_action('admin_notices', array($this, 'admin_notices'));
+		add_action('wp_loaded', array($this, 'hide_notices'));
+		add_action('woocommerce_stripe_updated', array($this, 'stripe_updated'));
 	}
 
 	/**
@@ -32,8 +32,8 @@ 
 	 * @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,
@@ -47,7 +47,7 @@ 
 	 * @version 4.0.0
 	 */
 	public function admin_notices() {
-		if ( ! current_user_can( 'manage_woocommerce' ) ) {
+		if ( ! current_user_can('manage_woocommerce')) {
 			return;
 		}
 
@@ -57,17 +57,17 @@ 
 		// All other payment methods.
 		$this->payment_methods_check_environment();
 
-		foreach ( (array) $this->notices as $notice_key => $notice ) {
-			echo '<div class="' . esc_attr( $notice['class'] ) . '" style="position:relative;">';
+		foreach ((array) $this->notices as $notice_key => $notice) {
+			echo '<div class="' . esc_attr($notice['class']) . '" style="position:relative;">';
 
-			if ( $notice['dismissible'] ) {
+			if ($notice['dismissible']) {
 				?>
-				<a href="<?php echo esc_url( wp_nonce_url( add_query_arg( 'wc-stripe-hide-notice', $notice_key ), 'wc_stripe_hide_notices_nonce', '_wc_stripe_notice_nonce' ) ); ?>" class="woocommerce-message-close notice-dismiss" style="position:relative;float:right;padding:9px 0px 9px 9px 9px;text-decoration:none;"></a>
+				<a href="<?php echo esc_url(wp_nonce_url(add_query_arg('wc-stripe-hide-notice', $notice_key), 'wc_stripe_hide_notices_nonce', '_wc_stripe_notice_nonce')); ?>" class="woocommerce-message-close notice-dismiss" style="position:relative;float:right;padding:9px 0px 9px 9px 9px;text-decoration:none;"></a>
 				<?php
 			}
 
 			echo '<p>';
-			echo wp_kses( $notice['message'], array( 'a' => array( 'href' => array(), 'target' => array() ) ) );
+			echo wp_kses($notice['message'], array('a' => array('href' => array(), 'target' => array())));
 			echo '</p></div>';
 		}
 	}
@@ -100,118 +100,118 @@ 
 	 * @version 4.0.0
 	 */
 	public function stripe_check_environment() {
-		$show_style_notice   = get_option( 'wc_stripe_show_style_notice' );
-		$show_ssl_notice     = get_option( 'wc_stripe_show_ssl_notice' );
-		$show_keys_notice    = get_option( 'wc_stripe_show_keys_notice' );
-		$show_3ds_notice     = get_option( 'wc_stripe_show_3ds_notice' );
-		$show_phpver_notice  = get_option( 'wc_stripe_show_phpver_notice' );
-		$show_wcver_notice   = get_option( 'wc_stripe_show_wcver_notice' );
-		$show_curl_notice    = get_option( 'wc_stripe_show_curl_notice' );
-		$show_sca_notice     = get_option( 'wc_stripe_show_sca_notice' );
-		$changed_keys_notice = get_option( 'wc_stripe_show_changed_keys_notice' );
-		$options             = get_option( 'woocommerce_stripe_settings' );
-		$testmode            = ( isset( $options['testmode'] ) && 'yes' === $options['testmode'] ) ? true : false;
-		$test_pub_key        = isset( $options['test_publishable_key'] ) ? $options['test_publishable_key'] : '';
-		$test_secret_key     = isset( $options['test_secret_key'] ) ? $options['test_secret_key'] : '';
-		$live_pub_key        = isset( $options['publishable_key'] ) ? $options['publishable_key'] : '';
-		$live_secret_key     = isset( $options['secret_key'] ) ? $options['secret_key'] : '';
-		$three_d_secure      = isset( $options['three_d_secure'] ) && 'yes' === $options['three_d_secure'];
-
-		if ( isset( $options['enabled'] ) && 'yes' === $options['enabled'] ) {
-			if ( empty( $show_3ds_notice ) && $three_d_secure ) {
+		$show_style_notice   = get_option('wc_stripe_show_style_notice');
+		$show_ssl_notice     = get_option('wc_stripe_show_ssl_notice');
+		$show_keys_notice    = get_option('wc_stripe_show_keys_notice');
+		$show_3ds_notice     = get_option('wc_stripe_show_3ds_notice');
+		$show_phpver_notice  = get_option('wc_stripe_show_phpver_notice');
+		$show_wcver_notice   = get_option('wc_stripe_show_wcver_notice');
+		$show_curl_notice    = get_option('wc_stripe_show_curl_notice');
+		$show_sca_notice     = get_option('wc_stripe_show_sca_notice');
+		$changed_keys_notice = get_option('wc_stripe_show_changed_keys_notice');
+		$options             = get_option('woocommerce_stripe_settings');
+		$testmode            = (isset($options['testmode']) && 'yes' === $options['testmode']) ? true : false;
+		$test_pub_key        = isset($options['test_publishable_key']) ? $options['test_publishable_key'] : '';
+		$test_secret_key     = isset($options['test_secret_key']) ? $options['test_secret_key'] : '';
+		$live_pub_key        = isset($options['publishable_key']) ? $options['publishable_key'] : '';
+		$live_secret_key     = isset($options['secret_key']) ? $options['secret_key'] : '';
+		$three_d_secure      = isset($options['three_d_secure']) && 'yes' === $options['three_d_secure'];
+
+		if (isset($options['enabled']) && 'yes' === $options['enabled']) {
+			if (empty($show_3ds_notice) && $three_d_secure) {
 				$url = 'https://stripe.com/docs/payments/3d-secure#three-ds-radar';
 
 				/* translators: 1) A URL that explains Stripe Radar. */
-				$message = __( 'WooCommerce Stripe - We see that you had the "Require 3D secure when applicable" setting turned on. This setting is not available here anymore, because it is now replaced by Stripe Radar. You can learn more about it <a href="%s" target="_blank">here</a>.', 'woocommerce-gateway-stripe' );
+				$message = __('WooCommerce Stripe - We see that you had the "Require 3D secure when applicable" setting turned on. This setting is not available here anymore, because it is now replaced by Stripe Radar. You can learn more about it <a href="%s" target="_blank">here</a>.', 'woocommerce-gateway-stripe');
 
-				$this->add_admin_notice( '3ds', 'notice notice-warning', sprintf( $message, $url ), true );
+				$this->add_admin_notice('3ds', 'notice notice-warning', sprintf($message, $url), true);
 			}
 
-			if ( empty( $show_style_notice ) ) {
+			if (empty($show_style_notice)) {
 				/* translators: 1) int version 2) int version */
-				$message = __( 'WooCommerce Stripe - We recently made changes to Stripe that may impact the appearance of your checkout. If your checkout has changed unexpectedly, please follow these <a href="https://docs.woocommerce.com/document/stripe/#styling" target="_blank">instructions</a> to fix.', 'woocommerce-gateway-stripe' );
+				$message = __('WooCommerce Stripe - We recently made changes to Stripe that may impact the appearance of your checkout. If your checkout has changed unexpectedly, please follow these <a href="https://docs.woocommerce.com/document/stripe/#styling" target="_blank">instructions</a> to fix.', 'woocommerce-gateway-stripe');
 
-				$this->add_admin_notice( 'style', 'notice notice-warning', $message, true );
+				$this->add_admin_notice('style', 'notice notice-warning', $message, true);
 
 				return;
 			}
 
-			if ( empty( $show_phpver_notice ) ) {
-				if ( version_compare( phpversion(), WC_STRIPE_MIN_PHP_VER, '<' ) ) {
+			if (empty($show_phpver_notice)) {
+				if (version_compare(phpversion(), WC_STRIPE_MIN_PHP_VER, '<')) {
 					/* translators: 1) int version 2) int version */
-					$message = __( 'WooCommerce Stripe - The minimum PHP version required for this plugin is %1$s. You are running %2$s.', 'woocommerce-gateway-stripe' );
+					$message = __('WooCommerce Stripe - The minimum PHP version required for this plugin is %1$s. You are running %2$s.', 'woocommerce-gateway-stripe');
 
-					$this->add_admin_notice( 'phpver', 'error', sprintf( $message, WC_STRIPE_MIN_PHP_VER, phpversion() ), true );
+					$this->add_admin_notice('phpver', 'error', sprintf($message, WC_STRIPE_MIN_PHP_VER, phpversion()), true);
 
 					return;
 				}
 			}
 
-			if ( empty( $show_wcver_notice ) ) {
-				if ( WC_Stripe_Helper::is_wc_lt( WC_STRIPE_MIN_WC_VER ) ) {
+			if (empty($show_wcver_notice)) {
+				if (WC_Stripe_Helper::is_wc_lt(WC_STRIPE_MIN_WC_VER)) {
 					/* translators: 1) int version 2) int version */
-					$message = __( 'WooCommerce Stripe - The minimum WooCommerce version required for this plugin is %1$s. You are running %2$s.', 'woocommerce-gateway-stripe' );
+					$message = __('WooCommerce Stripe - The minimum WooCommerce version required for this plugin is %1$s. You are running %2$s.', 'woocommerce-gateway-stripe');
 
-					$this->add_admin_notice( 'wcver', 'notice notice-warning', sprintf( $message, WC_STRIPE_MIN_WC_VER, WC_VERSION ), true );
+					$this->add_admin_notice('wcver', 'notice notice-warning', sprintf($message, WC_STRIPE_MIN_WC_VER, WC_VERSION), true);
 
 					return;
-				} elseif ( WC_Stripe_Helper::is_wc_lt( WC_STRIPE_FUTURE_MIN_WC_VER ) ) {
+				} elseif (WC_Stripe_Helper::is_wc_lt(WC_STRIPE_FUTURE_MIN_WC_VER)) {
 					/* translators: 1) int version 2) int version */
-					$message = __( 'WooCommerce Stripe - This is the last version of the plugin compatible with WooCommerce %1$s. All furture versions of the plugin will require WooCommerce %2$s or greater.', 'woocommerce-gateway-stripe' );
-					$this->add_admin_notice( 'wcver', 'notice notice-warning', sprintf( $message, WC_VERSION, WC_STRIPE_FUTURE_MIN_WC_VER ), true );
+					$message = __('WooCommerce Stripe - This is the last version of the plugin compatible with WooCommerce %1$s. All furture versions of the plugin will require WooCommerce %2$s or greater.', 'woocommerce-gateway-stripe');
+					$this->add_admin_notice('wcver', 'notice notice-warning', sprintf($message, WC_VERSION, WC_STRIPE_FUTURE_MIN_WC_VER), true);
 				}
 			}
 
-			if ( empty( $show_curl_notice ) ) {
-				if ( ! function_exists( 'curl_init' ) ) {
-					$this->add_admin_notice( 'curl', 'notice notice-warning', __( 'WooCommerce Stripe - cURL is not installed.', 'woocommerce-gateway-stripe' ), true );
+			if (empty($show_curl_notice)) {
+				if ( ! function_exists('curl_init')) {
+					$this->add_admin_notice('curl', 'notice notice-warning', __('WooCommerce Stripe - cURL is not installed.', 'woocommerce-gateway-stripe'), true);
 				}
 			}
 
-			if ( empty( $show_keys_notice ) ) {
+			if (empty($show_keys_notice)) {
 				$secret = WC_Stripe_API::get_secret_key();
 
-				if ( empty( $secret ) && ! ( isset( $_GET['page'], $_GET['section'] ) && 'wc-settings' === $_GET['page'] && 'stripe' === $_GET['section'] ) ) {
+				if (empty($secret) && ! (isset($_GET['page'], $_GET['section']) && 'wc-settings' === $_GET['page'] && 'stripe' === $_GET['section'])) {
 					$setting_link = $this->get_setting_link();
 					/* translators: 1) link */
-					$this->add_admin_notice( 'keys', 'notice notice-warning', sprintf( __( 'Stripe is almost ready. To get started, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe' ), $setting_link ), true );
+					$this->add_admin_notice('keys', 'notice notice-warning', sprintf(__('Stripe is almost ready. To get started, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe'), $setting_link), true);
 				}
 
 				// Check if keys are entered properly per live/test mode.
-				if ( $testmode ) {
+				if ($testmode) {
 					if (
-						! empty( $test_pub_key ) && ! preg_match( '/^pk_test_/', $test_pub_key )
-						|| ! empty( $test_secret_key ) && ! preg_match( '/^[rs]k_test_/', $test_secret_key ) ) {
+						! empty($test_pub_key) && ! preg_match('/^pk_test_/', $test_pub_key)
+						|| ! empty($test_secret_key) && ! preg_match('/^[rs]k_test_/', $test_secret_key) ) {
 						$setting_link = $this->get_setting_link();
 						/* translators: 1) link */
-						$this->add_admin_notice( 'keys', 'notice notice-error', sprintf( __( 'Stripe is in test mode however your test keys may not be valid. Test keys start with pk_test and sk_test or rk_test. Please go to your settings and, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe' ), $setting_link ), true );
+						$this->add_admin_notice('keys', 'notice notice-error', sprintf(__('Stripe is in test mode however your test keys may not be valid. Test keys start with pk_test and sk_test or rk_test. Please go to your settings and, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe'), $setting_link), true);
 					}
 				} else {
 					if (
-						! empty( $live_pub_key ) && ! preg_match( '/^pk_live_/', $live_pub_key )
-						|| ! empty( $live_secret_key ) && ! preg_match( '/^[rs]k_live_/', $live_secret_key ) ) {
+						! empty($live_pub_key) && ! preg_match('/^pk_live_/', $live_pub_key)
+						|| ! empty($live_secret_key) && ! preg_match('/^[rs]k_live_/', $live_secret_key) ) {
 						$setting_link = $this->get_setting_link();
 						/* translators: 1) link */
-						$this->add_admin_notice( 'keys', 'notice notice-error', sprintf( __( 'Stripe is in live mode however your live keys may not be valid. Live keys start with pk_live and sk_live or rk_live. Please go to your settings and, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe' ), $setting_link ), true );
+						$this->add_admin_notice('keys', 'notice notice-error', sprintf(__('Stripe is in live mode however your live keys may not be valid. Live keys start with pk_live and sk_live or rk_live. Please go to your settings and, <a href="%s">set your Stripe account keys</a>.', 'woocommerce-gateway-stripe'), $setting_link), true);
 					}
 				}
 			}
 
-			if ( empty( $show_ssl_notice ) ) {
+			if (empty($show_ssl_notice)) {
 				// Show message if enabled and FORCE SSL is disabled and WordpressHTTPS plugin is not detected.
-				if ( ! wc_checkout_is_https() ) {
+				if ( ! wc_checkout_is_https()) {
 					/* translators: 1) link */
-					$this->add_admin_notice( 'ssl', 'notice notice-warning', sprintf( __( 'Stripe is enabled, but a SSL certificate is not detected. Your checkout may not be secure! Please ensure your server has a valid <a href="%1$s" target="_blank">SSL certificate</a>', 'woocommerce-gateway-stripe' ), 'https://en.wikipedia.org/wiki/Transport_Layer_Security' ), true );
+					$this->add_admin_notice('ssl', 'notice notice-warning', sprintf(__('Stripe is enabled, but a SSL certificate is not detected. Your checkout may not be secure! Please ensure your server has a valid <a href="%1$s" target="_blank">SSL certificate</a>', 'woocommerce-gateway-stripe'), 'https://en.wikipedia.org/wiki/Transport_Layer_Security'), true);
 				}
 			}
 
-			if ( empty( $show_sca_notice ) ) {
-				$this->add_admin_notice( 'sca', 'notice notice-success', sprintf( __( 'Stripe is now ready for Strong Customer Authentication (SCA) and 3D Secure 2! <a href="%1$s" target="_blank">Read about SCA</a>', 'woocommerce-gateway-stripe' ), 'https://woocommerce.com/posts/introducing-strong-customer-authentication-sca/' ), true );
+			if (empty($show_sca_notice)) {
+				$this->add_admin_notice('sca', 'notice notice-success', sprintf(__('Stripe is now ready for Strong Customer Authentication (SCA) and 3D Secure 2! <a href="%1$s" target="_blank">Read about SCA</a>', 'woocommerce-gateway-stripe'), 'https://woocommerce.com/posts/introducing-strong-customer-authentication-sca/'), true);
 			}
 
-			if ( 'yes' === $changed_keys_notice ) {
+			if ('yes' === $changed_keys_notice) {
 				// translators: %s is a the URL for the link.
-				$this->add_admin_notice( 'changed_keys', 'notice notice-warning', sprintf( __( 'The public and/or secret keys for the Stripe gateway have been changed. This might cause errors for existing customers and saved payment methods. <a href="%s" target="_blank">Click here to learn more</a>.', 'woocommerce-gateway-stripe' ), 'https://docs.woocommerce.com/document/stripe-fixing-customer-errors/' ), true );
+				$this->add_admin_notice('changed_keys', 'notice notice-warning', sprintf(__('The public and/or secret keys for the Stripe gateway have been changed. This might cause errors for existing customers and saved payment methods. <a href="%s" target="_blank">Click here to learn more</a>.', 'woocommerce-gateway-stripe'), 'https://docs.woocommerce.com/document/stripe-fixing-customer-errors/'), true);
 			}
 		}
 	}
@@ -224,17 +224,17 @@ 
 	public function payment_methods_check_environment() {
 		$payment_methods = $this->get_payment_methods();
 
-		foreach ( $payment_methods as $method => $class ) {
-			$show_notice = get_option( 'wc_stripe_show_' . strtolower( $method ) . '_notice' );
+		foreach ($payment_methods as $method => $class) {
+			$show_notice = get_option('wc_stripe_show_' . strtolower($method) . '_notice');
 			$gateway     = new $class();
 
-			if ( 'yes' !== $gateway->enabled || 'no' === $show_notice ) {
+			if ('yes' !== $gateway->enabled || 'no' === $show_notice) {
 				continue;
 			}
 
-			if ( ! in_array( get_woocommerce_currency(), $gateway->get_supported_currency() ) ) {
+			if ( ! in_array(get_woocommerce_currency(), $gateway->get_supported_currency())) {
 				/* translators: %1$s Payment method, %2$s List of supported currencies */
-				$this->add_admin_notice( $method, 'notice notice-error', sprintf( __( '%1$s is enabled - it requires store currency to be set to %2$s', 'woocommerce-gateway-stripe' ), $method, implode( ', ', $gateway->get_supported_currency() ) ), true );
+				$this->add_admin_notice($method, 'notice notice-error', sprintf(__('%1$s is enabled - it requires store currency to be set to %2$s', 'woocommerce-gateway-stripe'), $method, implode(', ', $gateway->get_supported_currency())), true);
 			}
 		}
 	}
@@ -246,71 +246,71 @@ 
 	 * @version 4.0.0
 	 */
 	public function hide_notices() {
-		if ( isset( $_GET['wc-stripe-hide-notice'] ) && isset( $_GET['_wc_stripe_notice_nonce'] ) ) {
-			if ( ! wp_verify_nonce( $_GET['_wc_stripe_notice_nonce'], 'wc_stripe_hide_notices_nonce' ) ) {
-				wp_die( __( 'Action failed. Please refresh the page and retry.', 'woocommerce-gateway-stripe' ) );
+		if (isset($_GET['wc-stripe-hide-notice']) && isset($_GET['_wc_stripe_notice_nonce'])) {
+			if ( ! wp_verify_nonce($_GET['_wc_stripe_notice_nonce'], 'wc_stripe_hide_notices_nonce')) {
+				wp_die(__('Action failed. Please refresh the page and retry.', 'woocommerce-gateway-stripe'));
 			}
 
-			if ( ! current_user_can( 'manage_woocommerce' ) ) {
-				wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce-gateway-stripe' ) );
+			if ( ! current_user_can('manage_woocommerce')) {
+				wp_die(__('Cheatin&#8217; huh?', 'woocommerce-gateway-stripe'));
 			}
 
-			$notice = wc_clean( $_GET['wc-stripe-hide-notice'] );
+			$notice = wc_clean($_GET['wc-stripe-hide-notice']);
 
-			switch ( $notice ) {
+			switch ($notice) {
 				case 'style':
-					update_option( 'wc_stripe_show_style_notice', 'no' );
+					update_option('wc_stripe_show_style_notice', 'no');
 					break;
 				case 'phpver':
-					update_option( 'wc_stripe_show_phpver_notice', 'no' );
+					update_option('wc_stripe_show_phpver_notice', 'no');
 					break;
 				case 'wcver':
-					update_option( 'wc_stripe_show_wcver_notice', 'no' );
+					update_option('wc_stripe_show_wcver_notice', 'no');
 					break;
 				case 'curl':
-					update_option( 'wc_stripe_show_curl_notice', 'no' );
+					update_option('wc_stripe_show_curl_notice', 'no');
 					break;
 				case 'ssl':
-					update_option( 'wc_stripe_show_ssl_notice', 'no' );
+					update_option('wc_stripe_show_ssl_notice', 'no');
 					break;
 				case 'keys':
-					update_option( 'wc_stripe_show_keys_notice', 'no' );
+					update_option('wc_stripe_show_keys_notice', 'no');
 					break;
 				case '3ds':
-					update_option( 'wc_stripe_show_3ds_notice', 'no' );
+					update_option('wc_stripe_show_3ds_notice', 'no');
 					break;
 				case 'Alipay':
-					update_option( 'wc_stripe_show_alipay_notice', 'no' );
+					update_option('wc_stripe_show_alipay_notice', 'no');
 					break;
 				case 'Bancontact':
-					update_option( 'wc_stripe_show_bancontact_notice', 'no' );
+					update_option('wc_stripe_show_bancontact_notice', 'no');
 					break;
 				case 'EPS':
-					update_option( 'wc_stripe_show_eps_notice', 'no' );
+					update_option('wc_stripe_show_eps_notice', 'no');
 					break;
 				case 'Giropay':
-					update_option( 'wc_stripe_show_giropay_notice', 'no' );
+					update_option('wc_stripe_show_giropay_notice', 'no');
 					break;
 				case 'iDeal':
-					update_option( 'wc_stripe_show_ideal_notice', 'no' );
+					update_option('wc_stripe_show_ideal_notice', 'no');
 					break;
 				case 'Multibanco':
-					update_option( 'wc_stripe_show_multibanco_notice', 'no' );
+					update_option('wc_stripe_show_multibanco_notice', 'no');
 					break;
 				case 'P24':
-					update_option( 'wc_stripe_show_p24_notice', 'no' );
+					update_option('wc_stripe_show_p24_notice', 'no');
 					break;
 				case 'SEPA':
-					update_option( 'wc_stripe_show_sepa_notice', 'no' );
+					update_option('wc_stripe_show_sepa_notice', 'no');
 					break;
 				case 'SOFORT':
-					update_option( 'wc_stripe_show_sofort_notice', 'no' );
+					update_option('wc_stripe_show_sofort_notice', 'no');
 					break;
 				case 'sca':
-					update_option( 'wc_stripe_show_sca_notice', 'no' );
+					update_option('wc_stripe_show_sca_notice', 'no');
 					break;
 				case 'changed_keys':
-					update_option( 'wc_stripe_show_changed_keys_notice', 'no' );
+					update_option('wc_stripe_show_changed_keys_notice', 'no');
 			}
 		}
 	}
@@ -323,11 +323,11 @@ 
 	 * @return string Setting link
 	 */
 	public function get_setting_link() {
-		$use_id_as_section = function_exists( 'WC' ) ? version_compare( WC()->version, '2.6', '>=' ) : false;
+		$use_id_as_section = function_exists('WC') ? version_compare(WC()->version, '2.6', '>=') : false;
 
-		$section_slug = $use_id_as_section ? 'stripe' : strtolower( 'WC_Gateway_Stripe' );
+		$section_slug = $use_id_as_section ? 'stripe' : strtolower('WC_Gateway_Stripe');
 
-		return admin_url( 'admin.php?page=wc-settings&tab=checkout&section=' . $section_slug );
+		return admin_url('admin.php?page=wc-settings&tab=checkout&section=' . $section_slug);
 	}
 
 	/**
@@ -336,16 +336,16 @@ 
 	 * @since 4.3.0
 	 */
 	public function stripe_updated() {
-		$previous_version = get_option( 'wc_stripe_version' );
+		$previous_version = get_option('wc_stripe_version');
 
 		// Only show the style notice if the plugin was installed and older than 4.1.4.
-		if ( empty( $previous_version ) || version_compare( $previous_version, '4.1.4', 'ge' ) ) {
-			update_option( 'wc_stripe_show_style_notice', 'no' );
+		if (empty($previous_version) || version_compare($previous_version, '4.1.4', 'ge')) {
+			update_option('wc_stripe_show_style_notice', 'no');
 		}
 
 		// Only show the SCA notice on pre-4.3.0 installs.
-		if ( empty( $previous_version ) || version_compare( $previous_version, '4.3.0', 'ge' ) ) {
-			update_option( 'wc_stripe_show_sca_notice', 'no' );
+		if (empty($previous_version) || version_compare($previous_version, '4.3.0', 'ge')) {
+			update_option('wc_stripe_show_sca_notice', 'no');
 		}
 	}
 }

includes/admin/stripe-settings.php

Spacing +56 added lines, -56 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -7,160 +7,160 @@ 
 	'wc_stripe_settings',
 	array(
 		'enabled'                       => array(
-			'title'       => __( 'Enable/Disable', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Stripe', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Enable/Disable', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Stripe', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
 			'description' => '',
 			'default'     => 'no',
 		),
 		'title'                         => array(
-			'title'       => __( 'Title', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Title', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Credit Card (Stripe)', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the title which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Credit Card (Stripe)', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'description'                   => array(
-			'title'       => __( 'Description', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Description', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe' ),
-			'default'     => __( 'Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe' ),
+			'description' => __('This controls the description which the user sees during checkout.', 'woocommerce-gateway-stripe'),
+			'default'     => __('Pay with your credit card via Stripe.', 'woocommerce-gateway-stripe'),
 			'desc_tip'    => true,
 		),
 		'webhook'                       => array(
-			'title'       => __( 'Webhook Endpoints', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Webhook Endpoints', 'woocommerce-gateway-stripe'),
 			'type'        => 'title',
 			/* translators: webhook URL */
 			'description' => $this->display_admin_settings_webhook_description(),
 		),
 		'testmode'                      => array(
-			'title'       => __( 'Test mode', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Test Mode', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test mode', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Test Mode', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Place the payment gateway in test mode using test API keys.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'test_publishable_key'          => array(
-			'title'       => __( 'Test Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with `pk_` will be saved.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account. Invalid values will be rejected. Only values starting with `pk_` will be saved.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'test_secret_key'               => array(
-			'title'       => __( 'Test Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'test_webhook_secret'           => array(
-			'title'       => __( 'Test Webhook Secret', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Test Webhook Secret', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'publishable_key'               => array(
-			'title'       => __( 'Live Publishable Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Publishable Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'secret_key'                    => array(
-			'title'       => __( 'Live Secret Key', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Live Secret Key', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your API keys from your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your API keys from your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'webhook_secret'               => array(
-			'title'       => __( 'Webhook Secret', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Webhook Secret', 'woocommerce-gateway-stripe'),
 			'type'        => 'password',
-			'description' => __( 'Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Get your webhook signing secret from the webhooks section in your stripe account.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'inline_cc_form'                => array(
-			'title'       => __( 'Inline Credit Card Form', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Inline Credit Card Form', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Choose the style you want to show for your credit card form. When unchecked, the credit card form will display separate credit card number field, expiry date field and cvc field.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),
 		'statement_descriptor'          => array(
-			'title'       => __( 'Statement Descriptor', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Statement Descriptor', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Statement descriptors are limited to 22 characters, cannot use the special characters >, <, ", \, \', *, and must not consist solely of numbers. This will appear on your customer\'s statement in capital letters.', 'woocommerce-gateway-stripe'),
 			'default'     => '',
 			'desc_tip'    => true,
 		),
 		'capture'                       => array(
-			'title'       => __( 'Capture', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Capture charge immediately', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Capture', 'woocommerce-gateway-stripe'),
+			'label'       => __('Capture charge immediately', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Whether or not to immediately capture the charge. When unchecked, the charge issues an authorization and will need to be captured later. Uncaptured charges expire in 7 days.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request'               => array(
-			'title'       => __( 'Payment Request Buttons', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Buttons', 'woocommerce-gateway-stripe'),
 			/* translators: 1) br tag 2) opening anchor tag 3) closing anchor tag */
-			'label'       => sprintf( __( 'Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe' ), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>' ),
+			'label'       => sprintf(__('Enable Payment Request Buttons. (Apple Pay/Chrome Payment Request API) %1$sBy using Apple Pay, you agree to %2$s and %3$s\'s terms of service.', 'woocommerce-gateway-stripe'), '<br />', '<a href="https://stripe.com/apple-pay/legal" target="_blank">Stripe</a>', '<a href="https://developer.apple.com/apple-pay/acceptable-use-guidelines-for-websites/" target="_blank">Apple</a>'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay using Apple Pay or Chrome Payment Request if supported by the browser.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'payment_request_button_type'   => array(
-			'title'       => __( 'Payment Request Button Type', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Type', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Type', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Type', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button type you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button type you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'buy',
 			'desc_tip'    => true,
 			'options'     => array(
-				'default' => __( 'Default', 'woocommerce-gateway-stripe' ),
-				'buy'     => __( 'Buy', 'woocommerce-gateway-stripe' ),
-				'donate'  => __( 'Donate', 'woocommerce-gateway-stripe' ),
+				'default' => __('Default', 'woocommerce-gateway-stripe'),
+				'buy'     => __('Buy', 'woocommerce-gateway-stripe'),
+				'donate'  => __('Donate', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_theme'  => array(
-			'title'       => __( 'Payment Request Button Theme', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Theme', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Theme', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Theme', 'woocommerce-gateway-stripe'),
 			'type'        => 'select',
-			'description' => __( 'Select the button theme you would like to show.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Select the button theme you would like to show.', 'woocommerce-gateway-stripe'),
 			'default'     => 'dark',
 			'desc_tip'    => true,
 			'options'     => array(
-				'dark'          => __( 'Dark', 'woocommerce-gateway-stripe' ),
-				'light'         => __( 'Light', 'woocommerce-gateway-stripe' ),
-				'light-outline' => __( 'Light-Outline', 'woocommerce-gateway-stripe' ),
+				'dark'          => __('Dark', 'woocommerce-gateway-stripe'),
+				'light'         => __('Light', 'woocommerce-gateway-stripe'),
+				'light-outline' => __('Light-Outline', 'woocommerce-gateway-stripe'),
 			),
 		),
 		'payment_request_button_height' => array(
-			'title'       => __( 'Payment Request Button Height', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Button Height', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Payment Request Button Height', 'woocommerce-gateway-stripe'),
+			'label'       => __('Button Height', 'woocommerce-gateway-stripe'),
 			'type'        => 'text',
-			'description' => __( 'Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Enter the height you would like the button to be in pixels. Width will always be 100%.', 'woocommerce-gateway-stripe'),
 			'default'     => '44',
 			'desc_tip'    => true,
 		),
 		'saved_cards'                   => array(
-			'title'       => __( 'Saved Cards', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Enable Payment via Saved Cards', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Saved Cards', 'woocommerce-gateway-stripe'),
+			'label'       => __('Enable Payment via Saved Cards', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe' ),
+			'description' => __('If enabled, users will be able to pay with a saved card during checkout. Card details are saved on Stripe servers, not on your store.', 'woocommerce-gateway-stripe'),
 			'default'     => 'yes',
 			'desc_tip'    => true,
 		),
 		'logging'                       => array(
-			'title'       => __( 'Logging', 'woocommerce-gateway-stripe' ),
-			'label'       => __( 'Log debug messages', 'woocommerce-gateway-stripe' ),
+			'title'       => __('Logging', 'woocommerce-gateway-stripe'),
+			'label'       => __('Log debug messages', 'woocommerce-gateway-stripe'),
 			'type'        => 'checkbox',
-			'description' => __( 'Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe' ),
+			'description' => __('Save debug messages to the WooCommerce System Status log.', 'woocommerce-gateway-stripe'),
 			'default'     => 'no',
 			'desc_tip'    => true,
 		),

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

Indentation +2 added lines, -2 removed lines

@@ -123,10 +123,10 @@
 		// in includes/abstracts/abstract-wc-stripe-payment-gateway.php
 		if ( $this->testmode ) {
 			return preg_match( '/^pk_test_/', $this->publishable_key )
-			       && preg_match( '/^[rs]k_test_/', $this->secret_key );
+				   && preg_match( '/^[rs]k_test_/', $this->secret_key );
 		} else {
 			return preg_match( '/^pk_live_/', $this->publishable_key )
-			       && preg_match( '/^[rs]k_live_/', $this->secret_key );
+				   && preg_match( '/^[rs]k_live_/', $this->secret_key );
 		}
 	}
 

Spacing +306 added lines, -306 removed lines

@@ -6,7 +6,7 @@ 
  * @since   4.0.0
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -64,41 +64,41 @@ 
 	 */
 	public function __construct() {
 		self::$_this            = $this;
-		$this->stripe_settings  = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode         = ( ! empty( $this->stripe_settings['testmode'] ) && 'yes' === $this->stripe_settings['testmode'] ) ? true : false;
-		$this->publishable_key  = ! empty( $this->stripe_settings['publishable_key'] ) ? $this->stripe_settings['publishable_key'] : '';
-		$this->secret_key       = ! empty( $this->stripe_settings['secret_key'] ) ? $this->stripe_settings['secret_key'] : '';
-		$this->total_label      = ! empty( $this->stripe_settings['statement_descriptor'] ) ? WC_Stripe_Helper::clean_statement_descriptor( $this->stripe_settings['statement_descriptor'] ) : '';
+		$this->stripe_settings  = get_option('woocommerce_stripe_settings', array());
+		$this->testmode         = ( ! empty($this->stripe_settings['testmode']) && 'yes' === $this->stripe_settings['testmode']) ? true : false;
+		$this->publishable_key  = ! empty($this->stripe_settings['publishable_key']) ? $this->stripe_settings['publishable_key'] : '';
+		$this->secret_key       = ! empty($this->stripe_settings['secret_key']) ? $this->stripe_settings['secret_key'] : '';
+		$this->total_label      = ! empty($this->stripe_settings['statement_descriptor']) ? WC_Stripe_Helper::clean_statement_descriptor($this->stripe_settings['statement_descriptor']) : '';
 
-		if ( $this->testmode ) {
-			$this->publishable_key = ! empty( $this->stripe_settings['test_publishable_key'] ) ? $this->stripe_settings['test_publishable_key'] : '';
-			$this->secret_key      = ! empty( $this->stripe_settings['test_secret_key'] ) ? $this->stripe_settings['test_secret_key'] : '';
+		if ($this->testmode) {
+			$this->publishable_key = ! empty($this->stripe_settings['test_publishable_key']) ? $this->stripe_settings['test_publishable_key'] : '';
+			$this->secret_key      = ! empty($this->stripe_settings['test_secret_key']) ? $this->stripe_settings['test_secret_key'] : '';
 		}
 
-		$this->total_label = str_replace( "'", '', $this->total_label ) . apply_filters( 'wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)' );
+		$this->total_label = str_replace("'", '', $this->total_label) . apply_filters('wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)');
 
 		// Checks if Stripe Gateway is enabled.
-		if ( empty( $this->stripe_settings ) || ( isset( $this->stripe_settings['enabled'] ) && 'yes' !== $this->stripe_settings['enabled'] ) ) {
+		if (empty($this->stripe_settings) || (isset($this->stripe_settings['enabled']) && 'yes' !== $this->stripe_settings['enabled'])) {
 			return;
 		}
 
 		// Checks if Payment Request is enabled.
-		if ( ! isset( $this->stripe_settings['payment_request'] ) || 'yes' !== $this->stripe_settings['payment_request'] ) {
+		if ( ! isset($this->stripe_settings['payment_request']) || 'yes' !== $this->stripe_settings['payment_request']) {
 			return;
 		}
 
 		// Don't load for change payment method page.
-		if ( isset( $_GET['change_payment_method'] ) ) {
+		if (isset($_GET['change_payment_method'])) {
 			return;
 		}
 
-		$wc_default_country = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$wc_default_country = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		if ( ! in_array( $wc_default_country, $this->get_stripe_supported_countries() ) ) {
+		if ( ! in_array($wc_default_country, $this->get_stripe_supported_countries())) {
 			return;
 		}
 
-		add_action( 'template_redirect', array( $this, 'set_session' ) );
+		add_action('template_redirect', array($this, 'set_session'));
 		$this->init();
 	}
 
@@ -109,7 +109,7 @@ 
 	 * @return array The list of countries.
 	 */
 	public function get_stripe_supported_countries() {
-		return apply_filters( 'wc_stripe_supported_countries', array( 'AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US' ) );
+		return apply_filters('wc_stripe_supported_countries', array('AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US'));
 	}
 
 	/**
@@ -121,12 +121,12 @@ 
 	public function are_keys_set() {
 		// NOTE: updates to this function should be added to are_keys_set()
 		// in includes/abstracts/abstract-wc-stripe-payment-gateway.php
-		if ( $this->testmode ) {
-			return preg_match( '/^pk_test_/', $this->publishable_key )
-			       && preg_match( '/^[rs]k_test_/', $this->secret_key );
+		if ($this->testmode) {
+			return preg_match('/^pk_test_/', $this->publishable_key)
+			       && preg_match('/^[rs]k_test_/', $this->secret_key);
 		} else {
-			return preg_match( '/^pk_live_/', $this->publishable_key )
-			       && preg_match( '/^[rs]k_live_/', $this->secret_key );
+			return preg_match('/^pk_live_/', $this->publishable_key)
+			       && preg_match('/^[rs]k_live_/', $this->secret_key);
 		}
 	}
 
@@ -147,11 +147,11 @@ 
 	 * @since 4.0.0
 	 */
 	public function set_session() {
-		if ( ! is_product() || ( isset( WC()->session ) && WC()->session->has_session() ) ) {
+		if ( ! is_product() || (isset(WC()->session) && WC()->session->has_session())) {
 			return;
 		}
 
-		WC()->session->set_customer_session_cookie( true );
+		WC()->session->set_customer_session_cookie(true);
 	}
 
 	/**
@@ -161,40 +161,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function init() {
-		add_action( 'wp_enqueue_scripts', array( $this, 'scripts' ) );
+		add_action('wp_enqueue_scripts', array($this, 'scripts'));
 
 		/*
 		 * In order to display the Payment Request button in the correct position,
 		 * a new hook was added to WooCommerce 3.0. In older versions of WooCommerce,
 		 * CSS is used to position the button.
 		 */
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_separator_html'), 2);
 		} else {
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_separator_html'), 2);
 		}
 
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'wc_ajax_wc_stripe_get_cart_details', array( $this, 'ajax_get_cart_details' ) );
-		add_action( 'wc_ajax_wc_stripe_get_shipping_options', array( $this, 'ajax_get_shipping_options' ) );
-		add_action( 'wc_ajax_wc_stripe_update_shipping_method', array( $this, 'ajax_update_shipping_method' ) );
-		add_action( 'wc_ajax_wc_stripe_create_order', array( $this, 'ajax_create_order' ) );
-		add_action( 'wc_ajax_wc_stripe_add_to_cart', array( $this, 'ajax_add_to_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_get_selected_product_data', array( $this, 'ajax_get_selected_product_data' ) );
-		add_action( 'wc_ajax_wc_stripe_clear_cart', array( $this, 'ajax_clear_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_log_errors', array( $this, 'ajax_log_errors' ) );
+		add_action('wc_ajax_wc_stripe_get_cart_details', array($this, 'ajax_get_cart_details'));
+		add_action('wc_ajax_wc_stripe_get_shipping_options', array($this, 'ajax_get_shipping_options'));
+		add_action('wc_ajax_wc_stripe_update_shipping_method', array($this, 'ajax_update_shipping_method'));
+		add_action('wc_ajax_wc_stripe_create_order', array($this, 'ajax_create_order'));
+		add_action('wc_ajax_wc_stripe_add_to_cart', array($this, 'ajax_add_to_cart'));
+		add_action('wc_ajax_wc_stripe_get_selected_product_data', array($this, 'ajax_get_selected_product_data'));
+		add_action('wc_ajax_wc_stripe_clear_cart', array($this, 'ajax_clear_cart'));
+		add_action('wc_ajax_wc_stripe_log_errors', array($this, 'ajax_log_errors'));
 
-		add_filter( 'woocommerce_gateway_title', array( $this, 'filter_gateway_title' ), 10, 2 );
-		add_filter( 'woocommerce_validate_postcode', array( $this, 'postal_code_validation' ), 10, 3 );
+		add_filter('woocommerce_gateway_title', array($this, 'filter_gateway_title'), 10, 2);
+		add_filter('woocommerce_validate_postcode', array($this, 'postal_code_validation'), 10, 3);
 
-		add_action( 'woocommerce_checkout_order_processed', array( $this, 'add_order_meta' ), 10, 2 );
+		add_action('woocommerce_checkout_order_processed', array($this, 'add_order_meta'), 10, 2);
 	}
 
 	/**
@@ -205,7 +205,7 @@ 
 	 * @return string
 	 */
 	public function get_button_type() {
-		return isset( $this->stripe_settings['payment_request_button_type'] ) ? $this->stripe_settings['payment_request_button_type'] : 'default';
+		return isset($this->stripe_settings['payment_request_button_type']) ? $this->stripe_settings['payment_request_button_type'] : 'default';
 	}
 
 	/**
@@ -216,7 +216,7 @@ 
 	 * @return string
 	 */
 	public function get_button_theme() {
-		return isset( $this->stripe_settings['payment_request_button_theme'] ) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
+		return isset($this->stripe_settings['payment_request_button_theme']) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
 	}
 
 	/**
@@ -227,7 +227,7 @@ 
 	 * @return string
 	 */
 	public function get_button_height() {
-		return isset( $this->stripe_settings['payment_request_button_height'] ) ? str_replace( 'px', '', $this->stripe_settings['payment_request_button_height'] ) : '64';
+		return isset($this->stripe_settings['payment_request_button_height']) ? str_replace('px', '', $this->stripe_settings['payment_request_button_height']) : '64';
 	}
 
 	/**
@@ -237,26 +237,26 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_product_data() {
-		if ( ! is_product() ) {
+		if ( ! is_product()) {
 			return false;
 		}
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
-		if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) ) {
-			$attributes = wc_clean( wp_unslash( $_GET ) );
+		if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type())) {
+			$attributes = wc_clean(wp_unslash($_GET));
 
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store   = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			if ( ! empty( $variation_id ) ) {
-				$product = wc_get_product( $variation_id );
+			if ( ! empty($variation_id)) {
+				$product = wc_get_product($variation_id);
 			}
 		}
 
@@ -264,28 +264,28 @@ 
 		$items = array();
 
 		$items[] = array(
-			'label'  => WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name(),
-			'amount' => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'  => WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name(),
+			'amount' => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 		);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 		}
 
-		if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+		if (wc_shipping_enabled() && $product->needs_shipping()) {
 			$items[] = array(
-				'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 
 			$data['shippingOptions'] = array(
 				'id'     => 'pending',
-				'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 				'detail' => '',
 				'amount' => 0,
 			);
@@ -293,41 +293,41 @@ 
 
 		$data['displayItems'] = $items;
 		$data['total']        = array(
-			'label'   => apply_filters( 'wc_stripe_payment_request_total_label', $this->total_label ),
-			'amount'  => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'   => apply_filters('wc_stripe_payment_request_total_label', $this->total_label),
+			'amount'  => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 			'pending' => true,
 		);
 
-		$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-		$data['currency']        = strtolower( get_woocommerce_currency() );
-		$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+		$data['currency']        = strtolower(get_woocommerce_currency());
+		$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		return apply_filters( 'wc_stripe_payment_request_product_data', $data, $product );
+		return apply_filters('wc_stripe_payment_request_product_data', $data, $product);
 	}
 
 	/**
 	 * Filters the gateway title to reflect Payment Request type
 	 *
 	 */
-	public function filter_gateway_title( $title, $id ) {
+	public function filter_gateway_title($title, $id) {
 		global $post;
 
-		if ( ! is_object( $post ) ) {
+		if ( ! is_object($post)) {
 			return $title;
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			$method_title = get_post_meta( $post->ID, '_payment_method_title', true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			$method_title = get_post_meta($post->ID, '_payment_method_title', true);
 		} else {
-			$order        = wc_get_order( $post->ID );
-			$method_title = is_object( $order ) ? $order->get_payment_method_title() : '';
+			$order        = wc_get_order($post->ID);
+			$method_title = is_object($order) ? $order->get_payment_method_title() : '';
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Apple Pay (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Apple Pay (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Chrome Payment Request (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Chrome Payment Request (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
@@ -340,16 +340,16 @@ 
 	 * @since 3.1.4
 	 * @version 4.0.0
 	 */
-	public function postal_code_validation( $valid, $postcode, $country ) {
+	public function postal_code_validation($valid, $postcode, $country) {
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return $valid;
 		}
 
-		$payment_request_type = isset( $_POST['payment_request_type'] ) ? wc_clean( $_POST['payment_request_type'] ) : '';
+		$payment_request_type = isset($_POST['payment_request_type']) ? wc_clean($_POST['payment_request_type']) : '';
 
-		if ( 'apple_pay' !== $payment_request_type ) {
+		if ('apple_pay' !== $payment_request_type) {
 			return $valid;
 		}
 
@@ -359,7 +359,7 @@ 
 		 * the order and not let it go through. The remedy for now is just to remove this validation.
 		 * Note that this only works with shipping providers that don't validate full postal codes.
 		 */
-		if ( 'GB' === $country || 'CA' === $country ) {
+		if ('GB' === $country || 'CA' === $country) {
 			return true;
 		}
 
@@ -374,29 +374,29 @@ 
 	 * @param int $order_id
 	 * @param array $posted_data The posted data from checkout form.
 	 */
-	public function add_order_meta( $order_id, $posted_data ) {
-		if ( empty( $_POST['payment_request_type'] ) ) {
+	public function add_order_meta($order_id, $posted_data) {
+		if (empty($_POST['payment_request_type'])) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$payment_request_type = wc_clean( $_POST['payment_request_type'] );
+		$payment_request_type = wc_clean($_POST['payment_request_type']);
 
-		if ( 'apple_pay' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Apple Pay (Stripe)' );
+		if ('apple_pay' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Apple Pay (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Apple Pay (Stripe)' );
+				$order->set_payment_method_title('Apple Pay (Stripe)');
 				$order->save();
 			}
 		}
 
-		if ( 'payment_request_api' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)' );
+		if ('payment_request_api' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Chrome Payment Request (Stripe)' );
+				$order->set_payment_method_title('Chrome Payment Request (Stripe)');
 				$order->save();
 			}
 		}
@@ -435,20 +435,20 @@ 
 	 * @return bool
 	 */
 	public function allowed_items_in_cart() {
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
-			$_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
+		foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
+			$_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key);
 
-			if ( ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $_product->product_type : $_product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $_product->product_type : $_product->get_type()), $this->supported_product_types())) {
 				return false;
 			}
 
 			// Trial subscriptions with shipping are not supported
-			if ( class_exists( 'WC_Subscriptions_Order' ) && WC_Subscriptions_Cart::cart_contains_subscription() && $_product->needs_shipping() && WC_Subscriptions_Product::get_trial_length( $_product ) > 0 ) {
+			if (class_exists('WC_Subscriptions_Order') && WC_Subscriptions_Cart::cart_contains_subscription() && $_product->needs_shipping() && WC_Subscriptions_Product::get_trial_length($_product) > 0) {
 				return false;
 			}
 
 			// Pre Orders compatbility where we don't support charge upon release.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release( WC_Pre_Orders_Cart::get_pre_order_product() ) ) {
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release(WC_Pre_Orders_Cart::get_pre_order_product())) {
 				return false;
 			}
 		}
@@ -464,73 +464,73 @@ 
 	 */
 	public function scripts() {
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe Payment Request live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe Payment Request live mode requires SSL.');
 			return;
 		}
 
-		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && ! $this->should_show_payment_button_on_product_page() ) {
+		if (is_product() && ! $this->should_show_payment_button_on_product_page()) {
 			return;
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
 		$stripe_params = array(
-			'ajax_url'        => WC_AJAX::get_endpoint( '%%endpoint%%' ),
+			'ajax_url'        => WC_AJAX::get_endpoint('%%endpoint%%'),
 			'stripe'          => array(
 				'key'                => $this->publishable_key,
-				'allow_prepaid_card' => apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no',
+				'allow_prepaid_card' => apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no',
 			),
 			'nonce'           => array(
-				'payment'                   => wp_create_nonce( 'wc-stripe-payment-request' ),
-				'shipping'                  => wp_create_nonce( 'wc-stripe-payment-request-shipping' ),
-				'update_shipping'           => wp_create_nonce( 'wc-stripe-update-shipping-method' ),
-				'checkout'                  => wp_create_nonce( 'woocommerce-process_checkout' ),
-				'add_to_cart'               => wp_create_nonce( 'wc-stripe-add-to-cart' ),
-				'get_selected_product_data' => wp_create_nonce( 'wc-stripe-get-selected-product-data' ),
-				'log_errors'                => wp_create_nonce( 'wc-stripe-log-errors' ),
-				'clear_cart'                => wp_create_nonce( 'wc-stripe-clear-cart' ),
+				'payment'                   => wp_create_nonce('wc-stripe-payment-request'),
+				'shipping'                  => wp_create_nonce('wc-stripe-payment-request-shipping'),
+				'update_shipping'           => wp_create_nonce('wc-stripe-update-shipping-method'),
+				'checkout'                  => wp_create_nonce('woocommerce-process_checkout'),
+				'add_to_cart'               => wp_create_nonce('wc-stripe-add-to-cart'),
+				'get_selected_product_data' => wp_create_nonce('wc-stripe-get-selected-product-data'),
+				'log_errors'                => wp_create_nonce('wc-stripe-log-errors'),
+				'clear_cart'                => wp_create_nonce('wc-stripe-clear-cart'),
 			),
 			'i18n'            => array(
-				'no_prepaid_card'  => __( 'Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe' ),
+				'no_prepaid_card'  => __('Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe'),
 				/* translators: Do not translate the [option] placeholder */
-				'unknown_shipping' => __( 'Unknown shipping option "[option]".', 'woocommerce-gateway-stripe' ),
+				'unknown_shipping' => __('Unknown shipping option "[option]".', 'woocommerce-gateway-stripe'),
 			),
 			'checkout'        => array(
 				'url'            => wc_get_checkout_url(),
-				'currency_code'  => strtolower( get_woocommerce_currency() ),
-				'country_code'   => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency_code'  => strtolower(get_woocommerce_currency()),
+				'country_code'   => substr(get_option('woocommerce_default_country'), 0, 2),
 				'needs_shipping' => WC()->cart->needs_shipping() ? 'yes' : 'no',
 			),
 			'button'          => array(
 				'type'   => $this->get_button_type(),
 				'theme'  => $this->get_button_theme(),
 				'height' => $this->get_button_height(),
-				'locale' => apply_filters( 'wc_stripe_payment_request_button_locale', substr( get_locale(), 0, 2 ) ), // Default format is en_US.
+				'locale' => apply_filters('wc_stripe_payment_request_button_locale', substr(get_locale(), 0, 2)), // Default format is en_US.
 			),
 			'is_product_page' => is_product(),
 			'product'         => $this->get_product_data(),
 		);
 
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'wc_stripe_payment_request', plugins_url( 'assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_script('wc_stripe_payment_request', plugins_url('assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery', 'stripe'), WC_STRIPE_VERSION, true);
 
-		wp_localize_script( 'wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters( 'wc_stripe_payment_request_params', $stripe_params ) );
+		wp_localize_script('wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters('wc_stripe_payment_request_params', $stripe_params));
 
-		wp_enqueue_script( 'wc_stripe_payment_request' );
+		wp_enqueue_script('wc_stripe_payment_request');
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
-		if ( isset( $gateways['stripe'] ) ) {
+		if (isset($gateways['stripe'])) {
 			$gateways['stripe']->payment_scripts();
 		}
 	}
@@ -546,23 +546,23 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() && ! $this->should_show_payment_button_on_product_page() ) {
+		if (is_product() && ! $this->should_show_payment_button_on_product_page()) {
 			return;
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
@@ -586,28 +586,28 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() && ! $this->should_show_payment_button_on_product_page() ) {
+		if (is_product() && ! $this->should_show_payment_button_on_product_page()) {
 			return;
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
 		?>
-		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e( 'OR', 'woocommerce-gateway-stripe' ); ?> &mdash;</p>
+		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e('OR', 'woocommerce-gateway-stripe'); ?> &mdash;</p>
 		<?php
 	}
 
@@ -623,32 +623,32 @@ 
 	private function should_show_payment_button_on_product_page() {
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
-		if ( apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return false;
 		}
 
-		if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+		if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 			return false;
 		}
 
 		// Trial subscriptions with shipping are not supported
-		if ( class_exists( 'WC_Subscriptions_Order' ) && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length( $product ) > 0 ) {
+		if (class_exists('WC_Subscriptions_Order') && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length($product) > 0) {
 			return false;
 		}
 
 		// Pre Orders charge upon release not supported.
-		if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-			WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+		if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+			WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 			return false;
 		}
 
 		// File upload addon not supported
-		if ( class_exists( 'WC_Product_Addons_Helper' ) ) {
-			$product_addons = WC_Product_Addons_Helper::get_product_addons( $product->get_id() );
-			foreach ( $product_addons as $addon ) {
-				if ( 'file_upload' === $addon['type'] ) {
+		if (class_exists('WC_Product_Addons_Helper')) {
+			$product_addons = WC_Product_Addons_Helper::get_product_addons($product->get_id());
+			foreach ($product_addons as $addon) {
+				if ('file_upload' === $addon['type']) {
 					return false;
 				}
 			}
@@ -664,11 +664,11 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_log_errors() {
-		check_ajax_referer( 'wc-stripe-log-errors', 'security' );
+		check_ajax_referer('wc-stripe-log-errors', 'security');
 
-		$errors = wc_clean( stripslashes( $_POST['errors'] ) );
+		$errors = wc_clean(stripslashes($_POST['errors']));
 
-		WC_Stripe_Logger::log( $errors );
+		WC_Stripe_Logger::log($errors);
 
 		exit;
 	}
@@ -680,7 +680,7 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_clear_cart() {
-		check_ajax_referer( 'wc-stripe-clear-cart', 'security' );
+		check_ajax_referer('wc-stripe-clear-cart', 'security');
 
 		WC()->cart->empty_cart();
 		exit;
@@ -690,10 +690,10 @@ 
 	 * Get cart details.
 	 */
 	public function ajax_get_cart_details() {
-		check_ajax_referer( 'wc-stripe-payment-request', 'security' );
+		check_ajax_referer('wc-stripe-payment-request', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->cart->calculate_totals();
@@ -704,14 +704,14 @@ 
 		$data = array(
 			'shipping_required' => WC()->cart->needs_shipping(),
 			'order_data'        => array(
-				'currency'     => strtolower( $currency ),
-				'country_code' => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency'     => strtolower($currency),
+				'country_code' => substr(get_option('woocommerce_default_country'), 0, 2),
 			),
 		);
 
 		$data['order_data'] += $this->build_display_items();
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -722,7 +722,7 @@ 
 	 * @see WC_Shipping::get_packages().
 	 */
 	public function ajax_get_shipping_options() {
-		check_ajax_referer( 'wc-stripe-payment-request-shipping', 'security' );
+		check_ajax_referer('wc-stripe-payment-request-shipping', 'security');
 
 		try {
 			// Set the shipping package.
@@ -738,34 +738,34 @@ 
 				)
 			);
 
-			$this->calculate_shipping( apply_filters( 'wc_stripe_payment_request_shipping_posted_values', $posted ) );
+			$this->calculate_shipping(apply_filters('wc_stripe_payment_request_shipping_posted_values', $posted));
 
 			// Set the shipping options.
 			$data     = array();
 			$packages = WC()->shipping->get_packages();
 
-			if ( ! empty( $packages ) && WC()->customer->has_calculated_shipping() ) {
-				foreach ( $packages as $package_key => $package ) {
-					if ( empty( $package['rates'] ) ) {
-						throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+			if ( ! empty($packages) && WC()->customer->has_calculated_shipping()) {
+				foreach ($packages as $package_key => $package) {
+					if (empty($package['rates'])) {
+						throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 					}
 
-					foreach ( $package['rates'] as $key => $rate ) {
+					foreach ($package['rates'] as $key => $rate) {
 						$data['shipping_options'][] = array(
 							'id'     => $rate->id,
 							'label'  => $rate->label,
 							'detail' => '',
-							'amount' => WC_Stripe_Helper::get_stripe_amount( $rate->cost ),
+							'amount' => WC_Stripe_Helper::get_stripe_amount($rate->cost),
 						);
 					}
 				}
 			} else {
-				throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 			}
 
-			if ( isset( $data[0] ) ) {
+			if (isset($data[0])) {
 				// Auto select the first shipping method.
-				WC()->session->set( 'chosen_shipping_methods', array( $data[0]['id'] ) );
+				WC()->session->set('chosen_shipping_methods', array($data[0]['id']));
 			}
 
 			WC()->cart->calculate_totals();
@@ -773,12 +773,12 @@ 
 			$data          += $this->build_display_items();
 			$data['result'] = 'success';
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
+			wp_send_json($data);
+		} catch (Exception $e) {
 			$data          += $this->build_display_items();
 			$data['result'] = 'invalid_shipping_address';
 
-			wp_send_json( $data );
+			wp_send_json($data);
 		}
 	}
 
@@ -786,22 +786,22 @@ 
 	 * Update shipping method.
 	 */
 	public function ajax_update_shipping_method() {
-		check_ajax_referer( 'wc-stripe-update-shipping-method', 'security' );
+		check_ajax_referer('wc-stripe-update-shipping-method', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
-		$shipping_method         = filter_input( INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY );
+		$chosen_shipping_methods = WC()->session->get('chosen_shipping_methods');
+		$shipping_method         = filter_input(INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
 
-		if ( is_array( $shipping_method ) ) {
-			foreach ( $shipping_method as $i => $value ) {
-				$chosen_shipping_methods[ $i ] = wc_clean( $value );
+		if (is_array($shipping_method)) {
+			foreach ($shipping_method as $i => $value) {
+				$chosen_shipping_methods[$i] = wc_clean($value);
 			}
 		}
 
-		WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
+		WC()->session->set('chosen_shipping_methods', $chosen_shipping_methods);
 
 		WC()->cart->calculate_totals();
 
@@ -809,7 +809,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -820,45 +820,45 @@ 
 	 * @return array $data
 	 */
 	public function ajax_get_selected_product_data() {
-		check_ajax_referer( 'wc-stripe-get-selected-product-data', 'security' );
+		check_ajax_referer('wc-stripe-get-selected-product-data', 'security');
 
 		try {
-			$product_id   = absint( $_POST['product_id'] );
-			$qty          = ! isset( $_POST['qty'] ) ? 1 : apply_filters( 'woocommerce_add_to_cart_quantity', absint( $_POST['qty'] ), $product_id );
-			$addon_value  = isset( $_POST['addon_value'] ) ? max( floatval( $_POST['addon_value'] ), 0 ) : 0;
-			$product      = wc_get_product( $product_id );
+			$product_id   = absint($_POST['product_id']);
+			$qty          = ! isset($_POST['qty']) ? 1 : apply_filters('woocommerce_add_to_cart_quantity', absint($_POST['qty']), $product_id);
+			$addon_value  = isset($_POST['addon_value']) ? max(floatval($_POST['addon_value']), 0) : 0;
+			$product      = wc_get_product($product_id);
 			$variation_id = null;
 
-			if ( ! is_a( $product, 'WC_Product' ) ) {
-				throw new Exception( sprintf( __( 'Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe' ), $product_id ) );
+			if ( ! is_a($product, 'WC_Product')) {
+				throw new Exception(sprintf(__('Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe'), $product_id));
 			}
 
-			if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-				$attributes = wc_clean( wp_unslash( $_POST['attributes'] ) );
+			if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+				$attributes = wc_clean(wp_unslash($_POST['attributes']));
 
-				if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-					$variation_id = $product->get_matching_variation( $attributes );
+				if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+					$variation_id = $product->get_matching_variation($attributes);
 				} else {
-					$data_store   = WC_Data_Store::load( 'product' );
-					$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+					$data_store   = WC_Data_Store::load('product');
+					$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 				}
 
-				if ( ! empty( $variation_id ) ) {
-					$product = wc_get_product( $variation_id );
+				if ( ! empty($variation_id)) {
+					$product = wc_get_product($variation_id);
 				}
 			}
 
 			// Force quantity to 1 if sold individually and check for existing item in cart.
-			if ( $product->is_sold_individually() ) {
-				$qty = apply_filters( 'wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id );
+			if ($product->is_sold_individually()) {
+				$qty = apply_filters('wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id);
 			}
 
-			if ( ! $product->has_enough_stock( $qty ) ) {
+			if ( ! $product->has_enough_stock($qty)) {
 				/* translators: 1: product name 2: quantity in stock */
-				throw new Exception( sprintf( __( 'You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity(), $product ) ) );
+				throw new Exception(sprintf(__('You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe'), $product->get_name(), wc_format_stock_quantity_for_display($product->get_stock_quantity(), $product)));
 			}
 
-			$total = $qty * ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ) + $addon_value;
+			$total = $qty * (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()) + $addon_value;
 
 			$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';
 
@@ -866,28 +866,28 @@ 
 			$items = array();
 
 			$items[] = array(
-				'label'  => ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name() ) . $quantity_label,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'label'  => (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name()) . $quantity_label,
+				'amount' => WC_Stripe_Helper::get_stripe_amount($total),
 			);
 
-			if ( wc_tax_enabled() ) {
+			if (wc_tax_enabled()) {
 				$items[] = array(
-					'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 			}
 
-			if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+			if (wc_shipping_enabled() && $product->needs_shipping()) {
 				$items[] = array(
-					'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 
 				$data['shippingOptions'] = array(
 					'id'     => 'pending',
-					'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+					'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 					'detail' => '',
 					'amount' => 0,
 				);
@@ -896,17 +896,17 @@ 
 			$data['displayItems'] = $items;
 			$data['total']        = array(
 				'label'   => $this->total_label,
-				'amount'  => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'amount'  => WC_Stripe_Helper::get_stripe_amount($total),
 				'pending' => true,
 			);
 
-			$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-			$data['currency']        = strtolower( get_woocommerce_currency() );
-			$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+			$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+			$data['currency']        = strtolower(get_woocommerce_currency());
+			$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
-			wp_send_json( array( 'error' => wp_strip_all_tags( $e->getMessage() ) ) );
+			wp_send_json($data);
+		} catch (Exception $e) {
+			wp_send_json(array('error' => wp_strip_all_tags($e->getMessage())));
 		}
 	}
 
@@ -918,37 +918,37 @@ 
 	 * @return array $data
 	 */
 	public function ajax_add_to_cart() {
-		check_ajax_referer( 'wc-stripe-add-to-cart', 'security' );
+		check_ajax_referer('wc-stripe-add-to-cart', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		$product_id   = absint( $_POST['product_id'] );
-		$qty          = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
-		$product      = wc_get_product( $product_id );
-		$product_type = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type();
+		$product_id   = absint($_POST['product_id']);
+		$qty          = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
+		$product      = wc_get_product($product_id);
+		$product_type = WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type();
 
 		// First empty the cart to prevent wrong calculation.
 		WC()->cart->empty_cart();
 
-		if ( ( 'variable' === $product_type || 'variable-subscription' === $product_type ) && isset( $_POST['attributes'] ) ) {
-			$attributes = wc_clean( wp_unslash( $_POST['attributes'] ) );
+		if (('variable' === $product_type || 'variable-subscription' === $product_type) && isset($_POST['attributes'])) {
+			$attributes = wc_clean(wp_unslash($_POST['attributes']));
 
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store   = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			WC()->cart->add_to_cart( $product->get_id(), $qty, $variation_id, $attributes );
+			WC()->cart->add_to_cart($product->get_id(), $qty, $variation_id, $attributes);
 		}
 
-		if ( 'simple' === $product_type || 'subscription' === $product_type ) {
-			WC()->cart->add_to_cart( $product->get_id(), $qty );
+		if ('simple' === $product_type || 'subscription' === $product_type) {
+			WC()->cart->add_to_cart($product->get_id(), $qty);
 		}
 
 		WC()->cart->calculate_totals();
@@ -957,7 +957,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -970,31 +970,31 @@ 
 	 * @version 4.0.0
 	 */
 	public function normalize_state() {
-		$billing_country  = ! empty( $_POST['billing_country'] ) ? wc_clean( $_POST['billing_country'] ) : '';
-		$shipping_country = ! empty( $_POST['shipping_country'] ) ? wc_clean( $_POST['shipping_country'] ) : '';
-		$billing_state    = ! empty( $_POST['billing_state'] ) ? wc_clean( $_POST['billing_state'] ) : '';
-		$shipping_state   = ! empty( $_POST['shipping_state'] ) ? wc_clean( $_POST['shipping_state'] ) : '';
+		$billing_country  = ! empty($_POST['billing_country']) ? wc_clean($_POST['billing_country']) : '';
+		$shipping_country = ! empty($_POST['shipping_country']) ? wc_clean($_POST['shipping_country']) : '';
+		$billing_state    = ! empty($_POST['billing_state']) ? wc_clean($_POST['billing_state']) : '';
+		$shipping_state   = ! empty($_POST['shipping_state']) ? wc_clean($_POST['shipping_state']) : '';
 
-		if ( $billing_state && $billing_country ) {
-			$valid_states = WC()->countries->get_states( $billing_country );
+		if ($billing_state && $billing_country) {
+			$valid_states = WC()->countries->get_states($billing_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $billing_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $billing_state)) {
 						$_POST['billing_state'] = $state_abbr;
 					}
 				}
 			}
 		}
 
-		if ( $shipping_state && $shipping_country ) {
-			$valid_states = WC()->countries->get_states( $shipping_country );
+		if ($shipping_state && $shipping_country) {
+			$valid_states = WC()->countries->get_states($shipping_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $shipping_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $shipping_state)) {
 						$_POST['shipping_state'] = $state_abbr;
 					}
 				}
@@ -1009,19 +1009,19 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_create_order() {
-		if ( WC()->cart->is_empty() ) {
-			wp_send_json_error( __( 'Empty cart', 'woocommerce-gateway-stripe' ) );
+		if (WC()->cart->is_empty()) {
+			wp_send_json_error(__('Empty cart', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CHECKOUT' ) ) {
-			define( 'WOOCOMMERCE_CHECKOUT', true );
+		if ( ! defined('WOOCOMMERCE_CHECKOUT')) {
+			define('WOOCOMMERCE_CHECKOUT', true);
 		}
 
 		$this->normalize_state();
 
 		WC()->checkout()->process_checkout();
 
-		die( 0 );
+		die(0);
 	}
 
 	/**
@@ -1031,41 +1031,41 @@ 
 	 * @version 4.0.0
 	 * @param array $address
 	 */
-	protected function calculate_shipping( $address = array() ) {
+	protected function calculate_shipping($address = array()) {
 		$country   = $address['country'];
 		$state     = $address['state'];
 		$postcode  = $address['postcode'];
 		$city      = $address['city'];
 		$address_1 = $address['address'];
 		$address_2 = $address['address_2'];
-		$wc_states = WC()->countries->get_states( $country );
+		$wc_states = WC()->countries->get_states($country);
 
 		/**
 		 * In some versions of Chrome, state can be a full name. So we need
 		 * to convert that to abbreviation as WC is expecting that.
 		 */
-		if ( 2 < strlen( $state ) && ! empty( $wc_states ) ) {
-			$state = array_search( ucwords( strtolower( $state ) ), $wc_states, true );
+		if (2 < strlen($state) && ! empty($wc_states)) {
+			$state = array_search(ucwords(strtolower($state)), $wc_states, true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		if ( $postcode && WC_Validation::is_postcode( $postcode, $country ) ) {
-			$postcode = wc_format_postcode( $postcode, $country );
+		if ($postcode && WC_Validation::is_postcode($postcode, $country)) {
+			$postcode = wc_format_postcode($postcode, $country);
 		}
 
-		if ( $country ) {
-			WC()->customer->set_location( $country, $state, $postcode, $city );
-			WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
+		if ($country) {
+			WC()->customer->set_location($country, $state, $postcode, $city);
+			WC()->customer->set_shipping_location($country, $state, $postcode, $city);
 		} else {
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			WC()->customer->calculated_shipping( true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			WC()->customer->calculated_shipping(true);
 		} else {
-			WC()->customer->set_calculated_shipping( true );
+			WC()->customer->set_calculated_shipping(true);
 			WC()->customer->save();
 		}
 
@@ -1082,17 +1082,17 @@ 
 		$packages[0]['destination']['address']   = $address_1;
 		$packages[0]['destination']['address_2'] = $address_2;
 
-		foreach ( WC()->cart->get_cart() as $item ) {
-			if ( $item['data']->needs_shipping() ) {
-				if ( isset( $item['line_total'] ) ) {
+		foreach (WC()->cart->get_cart() as $item) {
+			if ($item['data']->needs_shipping()) {
+				if (isset($item['line_total'])) {
 					$packages[0]['contents_cost'] += $item['line_total'];
 				}
 			}
 		}
 
-		$packages = apply_filters( 'woocommerce_cart_shipping_packages', $packages );
+		$packages = apply_filters('woocommerce_cart_shipping_packages', $packages);
 
-		WC()->shipping->calculate_shipping( $packages );
+		WC()->shipping->calculate_shipping($packages);
 	}
 
 	/**
@@ -1101,19 +1101,19 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	protected function build_shipping_methods( $shipping_methods ) {
-		if ( empty( $shipping_methods ) ) {
+	protected function build_shipping_methods($shipping_methods) {
+		if (empty($shipping_methods)) {
 			return array();
 		}
 
 		$shipping = array();
 
-		foreach ( $shipping_methods as $method ) {
+		foreach ($shipping_methods as $method) {
 			$shipping[] = array(
 				'id'     => $method['id'],
 				'label'  => $method['label'],
 				'detail' => '',
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $method['amount']['value'] ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($method['amount']['value']),
 			);
 		}
 
@@ -1127,8 +1127,8 @@ 
 	 * @version 4.0.0
 	 */
 	protected function build_display_items() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		$items     = array();
@@ -1136,71 +1136,71 @@ 
 		$discounts = 0;
 
 		// Default show only subtotal instead of itemization.
-		if ( ! apply_filters( 'wc_stripe_payment_request_hide_itemization', true ) ) {
-			foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
+		if ( ! apply_filters('wc_stripe_payment_request_hide_itemization', true)) {
+			foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
 				$amount         = $cart_item['line_subtotal'];
 				$subtotal      += $cart_item['line_subtotal'];
 				$quantity_label = 1 < $cart_item['quantity'] ? ' (x' . $cart_item['quantity'] . ')' : '';
 
-				$product_name = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
+				$product_name = WC_Stripe_Helper::is_wc_lt('3.0') ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
 
 				$item = array(
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Stripe_Helper::get_stripe_amount( $amount ),
+					'amount' => WC_Stripe_Helper::get_stripe_amount($amount),
 				);
 
 				$items[] = $item;
 			}
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
-			$discounts = wc_format_decimal( WC()->cart->get_cart_discount_total(), WC()->cart->dp );
+		if (version_compare(WC_VERSION, '3.2', '<')) {
+			$discounts = wc_format_decimal(WC()->cart->get_cart_discount_total(), WC()->cart->dp);
 		} else {
-			$applied_coupons = array_values( WC()->cart->get_coupon_discount_totals() );
+			$applied_coupons = array_values(WC()->cart->get_coupon_discount_totals());
 
-			foreach ( $applied_coupons as $amount ) {
+			foreach ($applied_coupons as $amount) {
 				$discounts += (float) $amount;
 			}
 		}
 
-		$discounts   = wc_format_decimal( $discounts, WC()->cart->dp );
-		$tax         = wc_format_decimal( WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp );
-		$shipping    = wc_format_decimal( WC()->cart->shipping_total, WC()->cart->dp );
-		$items_total = wc_format_decimal( WC()->cart->cart_contents_total, WC()->cart->dp ) + $discounts;
-		$order_total = version_compare( WC_VERSION, '3.2', '<' ) ? wc_format_decimal( $items_total + $tax + $shipping - $discounts, WC()->cart->dp ) : WC()->cart->get_total( false );
+		$discounts   = wc_format_decimal($discounts, WC()->cart->dp);
+		$tax         = wc_format_decimal(WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp);
+		$shipping    = wc_format_decimal(WC()->cart->shipping_total, WC()->cart->dp);
+		$items_total = wc_format_decimal(WC()->cart->cart_contents_total, WC()->cart->dp) + $discounts;
+		$order_total = version_compare(WC_VERSION, '3.2', '<') ? wc_format_decimal($items_total + $tax + $shipping - $discounts, WC()->cart->dp) : WC()->cart->get_total(false);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Tax', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $tax ),
+				'label'  => esc_html(__('Tax', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($tax),
 			);
 		}
 
-		if ( WC()->cart->needs_shipping() ) {
+		if (WC()->cart->needs_shipping()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Shipping', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $shipping ),
+				'label'  => esc_html(__('Shipping', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($shipping),
 			);
 		}
 
-		if ( WC()->cart->has_discount() ) {
+		if (WC()->cart->has_discount()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Discount', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $discounts ),
+				'label'  => esc_html(__('Discount', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($discounts),
 			);
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
+		if (version_compare(WC_VERSION, '3.2', '<')) {
 			$cart_fees = WC()->cart->fees;
 		} else {
 			$cart_fees = WC()->cart->get_fees();
 		}
 
 		// Include fees and taxes as display items.
-		foreach ( $cart_fees as $key => $fee ) {
+		foreach ($cart_fees as $key => $fee) {
 			$items[] = array(
 				'label'  => $fee->name,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $fee->amount ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($fee->amount),
 			);
 		}
 
@@ -1208,7 +1208,7 @@ 
 			'displayItems' => $items,
 			'total'        => array(
 				'label'   => $this->total_label,
-				'amount'  => max( 0, apply_filters( 'woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount( $order_total ), $order_total, WC()->cart ) ),
+				'amount'  => max(0, apply_filters('woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount($order_total), $order_total, WC()->cart)),
 				'pending' => false,
 			),
 		);

includes/class-wc-gateway-stripe.php

Spacing +333 added lines, -333 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -85,9 +85,9 @@ 
 	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',
@@ -114,40 +114,40 @@ 
 		$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->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' );
-
-		WC_Stripe_API::set_secret_key( $this->secret_key );
+		$this->title                = $this->get_option('title');
+		$this->description          = $this->get_option('description');
+		$this->enabled              = $this->get_option('enabled');
+		$this->testmode             = 'yes' === $this->get_option('testmode');
+		$this->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->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' === $this->get_option('payment_request', 'yes');
+
+		WC_Stripe_API::set_secret_key($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_filter( 'woocommerce_available_payment_gateways', array( $this, 'prepare_order_pay_page' ) );
-		add_action( 'woocommerce_account_view-order_endpoint', array( $this, 'check_intent_status_on_order_page' ), 1 );
-		add_filter( 'woocommerce_payment_successful_result', array( $this, 'modify_successful_payment_result' ), 99999, 2 );
-		add_action( 'set_logged_in_cookie', array( $this, 'set_cookie_on_current_request' ) );
-		add_filter( 'woocommerce_get_checkout_payment_url', array( $this, 'get_checkout_payment_url' ), 10, 2 );
+		add_action('wp_enqueue_scripts', array($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($this, 'show_update_card_notice'), 10, 2);
+		add_filter('woocommerce_available_payment_gateways', array($this, 'prepare_order_pay_page'));
+		add_action('woocommerce_account_view-order_endpoint', array($this, 'check_intent_status_on_order_page'), 1);
+		add_filter('woocommerce_payment_successful_result', array($this, 'modify_successful_payment_result'), 99999, 2);
+		add_action('set_logged_in_cookie', array($this, 'set_cookie_on_current_request'));
+		add_filter('woocommerce_get_checkout_payment_url', array($this, 'get_checkout_payment_url'), 10, 2);
 
 		// Note: display error is in the parent class.
-		add_action( 'admin_notices', array( $this, 'display_errors' ), 9999 );
+		add_action('admin_notices', array($this, 'display_errors'), 9999);
 
-		if ( WC_Stripe_Helper::is_pre_orders_exists() ) {
+		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'));
 		}
 	}
 
@@ -157,7 +157,7 @@ 
 	 * @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;
 		}
 
@@ -171,13 +171,13 @@ 
 	 * @param int    $user_id      The ID of the current user.
 	 * @param string $load_address The address to load.
 	 */
-	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');
 	}
 
 	/**
@@ -192,24 +192,24 @@ 
 
 		$icons_str = '';
 
-		$icons_str .= isset( $icons['visa'] ) ? $icons['visa'] : '';
-		$icons_str .= isset( $icons['amex'] ) ? $icons['amex'] : '';
-		$icons_str .= isset( $icons['mastercard'] ) ? $icons['mastercard'] : '';
+		$icons_str .= isset($icons['visa']) ? $icons['visa'] : '';
+		$icons_str .= isset($icons['amex']) ? $icons['amex'] : '';
+		$icons_str .= isset($icons['mastercard']) ? $icons['mastercard'] : '';
 
-		if ( 'USD' === get_woocommerce_currency() ) {
-			$icons_str .= isset( $icons['discover'] ) ? $icons['discover'] : '';
-			$icons_str .= isset( $icons['jcb'] ) ? $icons['jcb'] : '';
-			$icons_str .= isset( $icons['diners'] ) ? $icons['diners'] : '';
+		if ('USD' === get_woocommerce_currency()) {
+			$icons_str .= isset($icons['discover']) ? $icons['discover'] : '';
+			$icons_str .= isset($icons['jcb']) ? $icons['jcb'] : '';
+			$icons_str .= isset($icons['diners']) ? $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');
 	}
 
 	/**
@@ -218,27 +218,27 @@ 
 	public function payment_fields() {
 		global $wp;
 		$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          = $this->get_description();
-		$description          = ! empty( $description ) ? $description : '';
+		$description          = ! empty($description) ? $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'] ) ) { // wpcs: csrf ok.
-			$order      = wc_get_order( wc_clean( $wp->query_vars['order-pay'] ) ); // wpcs: csrf ok, sanitization ok.
+		if (isset($_GET['pay_for_order']) && ! empty($_GET['key'])) { // wpcs: csrf ok.
+			$order      = wc_get_order(wc_clean($wp->query_vars['order-pay'])); // wpcs: csrf ok, sanitization ok.
 			$total      = $order->get_total();
-			$user_email = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_email : $order->get_billing_email();
+			$user_email = WC_Stripe_Helper::is_wc_lt('3.0') ? $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() ) {
+		if (is_add_payment_method_page()) {
 			$firstname       = $user->user_firstname;
 			$lastname        = $user->user_lastname;
 		}
@@ -247,33 +247,33 @@ 
 
 		echo '<div
 			id="stripe-payment-data"
-			data-email="' . esc_attr( $user_email ) . '"
-			data-full-name="' . esc_attr( $firstname . ' ' . $lastname ) . '"
-			data-currency="' . esc_attr( strtolower( get_woocommerce_currency() ) ) . '"
+			data-email="' . esc_attr($user_email) . '"
+			data-full-name="' . esc_attr($firstname . ' ' . $lastname) . '"
+			data-currency="' . esc_attr(strtolower(get_woocommerce_currency())) . '"
 		>';
 
-		if ( $this->testmode ) {
+		if ($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 ) ), $this->id ); // wpcs: xss ok.
+		echo apply_filters('wc_stripe_description', wpautop(wp_kses_post($description)), $this->id); // wpcs: xss ok.
 
-		if ( $display_tokenization ) {
+		if ($display_tokenization) {
 			$this->tokenization_script();
 			$this->saved_payment_methods();
 		}
 
 		$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'] ) ) { // wpcs: csrf ok.
+		if (apply_filters('wc_stripe_display_save_payment_method_checkbox', $display_tokenization) && ! is_add_payment_method_page() && ! isset($_GET['change_payment_method'])) { // wpcs: csrf ok.
 
 			$this->save_payment_method_checkbox();
 		}
 
-		do_action( 'wc_stripe_cards_payment_fields', $this->id );
+		do_action('wc_stripe_cards_payment_fields', $this->id);
 
 		echo '</div>';
 
@@ -288,12 +288,12 @@ 
 	 */
 	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">
@@ -301,7 +301,7 @@ 
 				</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. -->
@@ -312,7 +312,7 @@ 
 				</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. -->
@@ -320,7 +320,7 @@ 
 				</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>
@@ -331,7 +331,7 @@ 
 			<!-- 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
@@ -344,13 +344,13 @@ 
 	 * @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);
 	}
 
 	/**
@@ -367,102 +367,102 @@ 
 			! is_product()
 			&& ! is_cart()
 			&& ! is_checkout()
-			&& ! isset( $_GET['pay_for_order'] ) // wpcs: csrf ok.
+			&& ! isset($_GET['pay_for_order']) // wpcs: csrf ok.
 			&& ! is_add_payment_method_page()
-			&& ! isset( $_GET['change_payment_method'] ) // wpcs: csrf ok.
-			&& ! ( ! empty( get_query_var( 'view-subscription' ) ) && is_callable( 'WCS_Early_Renewal_Manager::is_early_renewal_via_modal_enabled' ) && WCS_Early_Renewal_Manager::is_early_renewal_via_modal_enabled() )
-			|| ( is_order_received_page() )
+			&& ! isset($_GET['change_payment_method']) // wpcs: csrf ok.
+			&& ! ( ! empty(get_query_var('view-subscription')) && is_callable('WCS_Early_Renewal_Manager::is_early_renewal_via_modal_enabled') && WCS_Early_Renewal_Manager::is_early_renewal_via_modal_enabled())
+			|| (is_order_received_page())
 		) {
 			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.');
 			return;
 		}
 
 		$current_theme = wp_get_theme();
 
-		$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', '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', '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'] ) { // wpcs: csrf ok.
-			$order_id = wc_clean( $wp->query_vars['order-pay'] ); // wpcs: csrf ok, sanitization ok, xss ok.
-			$order    = wc_get_order( $order_id );
-
-			if ( is_a( $order, 'WC_Order' ) ) {
-				$stripe_params['billing_first_name'] = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_first_name : $order->get_billing_first_name();
-				$stripe_params['billing_last_name']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_last_name : $order->get_billing_last_name();
-				$stripe_params['billing_address_1']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_1 : $order->get_billing_address_1();
-				$stripe_params['billing_address_2']  = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_address_2 : $order->get_billing_address_2();
-				$stripe_params['billing_state']      = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_state : $order->get_billing_state();
-				$stripe_params['billing_city']       = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_city : $order->get_billing_city();
-				$stripe_params['billing_postcode']   = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_postcode : $order->get_billing_postcode();
-				$stripe_params['billing_country']    = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->billing_country : $order->get_billing_country();
+		if (isset($_GET['pay_for_order']) && 'true' === $_GET['pay_for_order']) { // wpcs: csrf ok.
+			$order_id = wc_clean($wp->query_vars['order-pay']); // wpcs: csrf ok, sanitization ok, xss ok.
+			$order    = wc_get_order($order_id);
+
+			if (is_a($order, 'WC_Order')) {
+				$stripe_params['billing_first_name'] = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_first_name : $order->get_billing_first_name();
+				$stripe_params['billing_last_name']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_last_name : $order->get_billing_last_name();
+				$stripe_params['billing_address_1']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_1 : $order->get_billing_address_1();
+				$stripe_params['billing_address_2']  = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_address_2 : $order->get_billing_address_2();
+				$stripe_params['billing_state']      = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_state : $order->get_billing_state();
+				$stripe_params['billing_city']       = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_city : $order->get_billing_city();
+				$stripe_params['billing_postcode']   = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_postcode : $order->get_billing_postcode();
+				$stripe_params['billing_country']    = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->billing_country : $order->get_billing_country();
 			}
 		}
 
 		$sepa_elements_options = apply_filters(
 			'wc_stripe_sepa_elements_options',
 			array(
-				'supportedCountries' => array( 'SEPA' ),
+				'supportedCountries' => array('SEPA'),
 				'placeholderCountry' => WC()->countries->get_base_country(),
-				'style'              => array( 'base' => array( 'fontSize' => '15px' ) ),
+				'style'              => array('base' => array('fontSize' => '15px')),
 			)
 		);
 
-		$stripe_params['no_prepaid_card_msg']       = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. 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['payment_intent_error']      = __( 'We couldn\'t initiate the payment. Please try again.', '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 charged. 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['payment_intent_error']      = __('We couldn\'t initiate the payment. Please try again.', '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['is_checkout']               = ( is_checkout() && empty( $_GET['pay_for_order'] ) ) ? 'yes' : 'no'; // wpcs: csrf ok.
+		$stripe_params['is_checkout']               = (is_checkout() && empty($_GET['pay_for_order'])) ? 'yes' : 'no'; // wpcs: csrf ok.
 		$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['elements_options']          = apply_filters('wc_stripe_elements_options', array());
 		$stripe_params['sepa_elements_options']     = $sepa_elements_options;
-		$stripe_params['invalid_owner_name']        = __( 'Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe' );
-		$stripe_params['is_change_payment_page']    = isset( $_GET['change_payment_method'] ) ? 'yes' : 'no'; // wpcs: csrf ok.
-		$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['invalid_owner_name']        = __('Billing First Name and Last Name are required.', 'woocommerce-gateway-stripe');
+		$stripe_params['is_change_payment_page']    = isset($_GET['change_payment_method']) ? 'yes' : 'no'; // wpcs: csrf ok.
+		$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', 'wc_stripe_params', apply_filters('wc_stripe_params', $stripe_params));
 
 		$this->tokenization_script();
-		wp_enqueue_script( 'woocommerce_stripe' );
+		wp_enqueue_script('woocommerce_stripe');
 	}
 
 	/**
@@ -473,14 +473,14 @@ 
 	 * @param object $prepared_source The object with source details.
 	 * @throws WC_Stripe_Exception An exception if the card is prepaid, but prepaid cards are not allowed.
 	 */
-	public function maybe_disallow_prepaid_card( $prepared_source ) {
+	public function maybe_disallow_prepaid_card($prepared_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 ) ) {
+		if (apply_filters('wc_stripe_allow_prepaid_card', true) || ! $this->is_prepaid_card($prepared_source->source_object)) {
 			return;
 		}
 
-		$localized_message = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-		throw new WC_Stripe_Exception( print_r( $prepared_source->source_object, true ), $localized_message );
+		$localized_message = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charged. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+		throw new WC_Stripe_Exception(print_r($prepared_source->source_object, true), $localized_message);
 	}
 
 	/**
@@ -490,10 +490,10 @@ 
 	 * @param  object $prepared_source The source that should be verified.
 	 * @throws WC_Stripe_Exception     An exception if the source ID is missing.
 	 */
-	public function check_source( $prepared_source ) {
-		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 ), $localized_message );
+	public function check_source($prepared_source) {
+		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);
 		}
 	}
 
@@ -505,17 +505,17 @@ 
 	 * @param WC_Order $order The order those payment is being processed.
 	 * @return bool           A flag that indicates that the customer does not exist and should be removed.
 	 */
-	public function maybe_remove_non_existent_customer( $error, $order ) {
-		if ( ! $this->is_no_such_customer_error( $error ) ) {
+	public function maybe_remove_non_existent_customer($error, $order) {
+		if ( ! $this->is_no_such_customer_error($error)) {
 			return false;
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			delete_user_option( $order->customer_user, '_stripe_customer_id' );
-			delete_post_meta( $order->get_id(), '_stripe_customer_id' );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			delete_user_option($order->customer_user, '_stripe_customer_id');
+			delete_post_meta($order->get_id(), '_stripe_customer_id');
 		} else {
-			delete_user_option( $order->get_customer_id(), '_stripe_customer_id' );
-			$order->delete_meta_data( '_stripe_customer_id' );
+			delete_user_option($order->get_customer_id(), '_stripe_customer_id');
+			$order->delete_meta_data('_stripe_customer_id');
 			$order->save();
 		}
 
@@ -531,15 +531,15 @@ 
 	 * @param boolean  $force_save_source Whether the payment source must be saved, like when dealing with a Subscription setup.
 	 * @return array                      Redirection data for `process_payment`.
 	 */
-	public function complete_free_order( $order, $prepared_source, $force_save_source ) {
-		if ( $force_save_source ) {
-			$intent_secret = $this->setup_intent( $order, $prepared_source );
+	public function complete_free_order($order, $prepared_source, $force_save_source) {
+		if ($force_save_source) {
+			$intent_secret = $this->setup_intent($order, $prepared_source);
 
-			if ( ! empty( $intent_secret ) ) {
+			if ( ! empty($intent_secret)) {
 				// `get_return_url()` must be called immediately before returning a value.
 				return array(
 					'result'              => 'success',
-					'redirect'            => $this->get_return_url( $order ),
+					'redirect'            => $this->get_return_url($order),
 					'setup_intent_secret' => $intent_secret,
 				);
 			}
@@ -553,7 +553,7 @@ 
 		// Return thank you page redirect.
 		return array(
 			'result'   => 'success',
-			'redirect' => $this->get_return_url( $order ),
+			'redirect' => $this->get_return_url($order),
 		);
 	}
 
@@ -571,81 +571,81 @@ 
 	 * @throws Exception If payment will not be accepted.
 	 * @return array|void
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false, $previous_error = false, $use_order_source = false ) {
+	public function process_payment($order_id, $retry = true, $force_save_source = false, $previous_error = false, $use_order_source = false) {
 		try {
-			$order = wc_get_order( $order_id );
+			$order = wc_get_order($order_id);
 
 			// ToDo: `process_pre_order` saves the source to the order for a later payment.
 			// This might not work well with PaymentIntents.
-			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);
 			}
 
 			// Check whether there is an existing intent.
-			$intent = $this->get_intent_from_order( $order );
-			if ( isset( $intent->object ) && 'setup_intent' === $intent->object ) {
+			$intent = $this->get_intent_from_order($order);
+			if (isset($intent->object) && 'setup_intent' === $intent->object) {
 				$intent = false; // This function can only deal with *payment* intents
 			}
 
 			$stripe_customer_id = null;
-			if ( $intent && ! empty( $intent->customer ) ) {
+			if ($intent && ! empty($intent->customer)) {
 				$stripe_customer_id = $intent->customer;
 			}
 
 			// For some payments the source should already be present in the order.
-			if ( $use_order_source ) {
-				$prepared_source = $this->prepare_order_source( $order );
+			if ($use_order_source) {
+				$prepared_source = $this->prepare_order_source($order);
 			} else {
-				$prepared_source = $this->prepare_source( get_current_user_id(), $force_save_source, $stripe_customer_id );
+				$prepared_source = $this->prepare_source(get_current_user_id(), $force_save_source, $stripe_customer_id);
 			}
 
-			$this->maybe_disallow_prepaid_card( $prepared_source );
-			$this->check_source( $prepared_source );
-			$this->save_source_to_order( $order, $prepared_source );
+			$this->maybe_disallow_prepaid_card($prepared_source);
+			$this->check_source($prepared_source);
+			$this->save_source_to_order($order, $prepared_source);
 
-			if ( 0 >= $order->get_total() ) {
-				return $this->complete_free_order( $order, $prepared_source, $force_save_source );
+			if (0 >= $order->get_total()) {
+				return $this->complete_free_order($order, $prepared_source, $force_save_source);
 			}
 
 			// This will throw exception if not valid.
-			$this->validate_minimum_order_amount( $order );
+			$this->validate_minimum_order_amount($order);
 
-			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 ( $intent ) {
-				$intent = $this->update_existing_intent( $intent, $order, $prepared_source );
+			if ($intent) {
+				$intent = $this->update_existing_intent($intent, $order, $prepared_source);
 			} else {
-				$intent = $this->create_intent( $order, $prepared_source );
+				$intent = $this->create_intent($order, $prepared_source);
 			}
 
 			// Confirm the intent after locking the order to make sure webhooks will not interfere.
-			if ( empty( $intent->error ) ) {
-				$this->lock_order_payment( $order, $intent );
-				$intent = $this->confirm_intent( $intent, $order, $prepared_source );
+			if (empty($intent->error)) {
+				$this->lock_order_payment($order, $intent);
+				$intent = $this->confirm_intent($intent, $order, $prepared_source);
 			}
 
-			if ( ! empty( $intent->error ) ) {
-				$this->maybe_remove_non_existent_customer( $intent->error, $order );
+			if ( ! empty($intent->error)) {
+				$this->maybe_remove_non_existent_customer($intent->error, $order);
 
 				// We want to retry.
-				if ( $this->is_retryable_error( $intent->error ) ) {
-					return $this->retry_after_error( $intent, $order, $retry, $force_save_source, $previous_error, $use_order_source );
+				if ($this->is_retryable_error($intent->error)) {
+					return $this->retry_after_error($intent, $order, $retry, $force_save_source, $previous_error, $use_order_source);
 				}
 
-				$this->unlock_order_payment( $order );
-				$this->throw_localized_message( $intent, $order );
+				$this->unlock_order_payment($order);
+				$this->throw_localized_message($intent, $order);
 			}
 
-			if ( ! empty( $intent ) ) {
+			if ( ! empty($intent)) {
 				// Use the last charge within the intent to proceed.
-				$response = end( $intent->charges->data );
+				$response = end($intent->charges->data);
 
 				// If the intent requires a 3DS flow, redirect to it.
-				if ( 'requires_action' === $intent->status ) {
-					$this->unlock_order_payment( $order );
+				if ('requires_action' === $intent->status) {
+					$this->unlock_order_payment($order);
 
-					if ( is_wc_endpoint_url( 'order-pay' ) ) {
-						$redirect_url = add_query_arg( 'wc-stripe-confirmation', 1, $order->get_checkout_payment_url( false ) );
+					if (is_wc_endpoint_url('order-pay')) {
+						$redirect_url = add_query_arg('wc-stripe-confirmation', 1, $order->get_checkout_payment_url(false));
 
 						return array(
 							'result'   => 'success',
@@ -660,7 +660,7 @@ 
 
 						return array(
 							'result'                => 'success',
-							'redirect'              => $this->get_return_url( $order ),
+							'redirect'              => $this->get_return_url($order),
 							'payment_intent_secret' => $intent->client_secret,
 						);
 					}
@@ -668,30 +668,30 @@ 
 			}
 
 			// Process valid response.
-			$this->process_response( $response, $order );
+			$this->process_response($response, $order);
 
 			// Remove cart.
-			if ( isset( WC()->cart ) ) {
+			if (isset(WC()->cart)) {
 				WC()->cart->empty_cart();
 			}
 
 			// Unlock the order.
-			$this->unlock_order_payment( $order );
+			$this->unlock_order_payment($order);
 
 			// 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',
@@ -707,17 +707,17 @@ 
 	 *
 	 * @param int $order_id The ID of the order.
 	 */
-	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;
 		}
 
@@ -725,12 +725,12 @@ 
 
 		<tr>
 			<td class="label stripe-fee">
-				<?php echo wc_help_tip( __( 'This represents the fee Stripe collects for the transaction.', 'woocommerce-gateway-stripe' ) ); // wpcs: xss ok. ?>
-				<?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')); // wpcs: xss ok. ?>
+				<?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' => $currency ) ); // wpcs: xss ok. ?>
+				-&nbsp;<?php echo wc_price($fee, array('currency' => $currency)); // wpcs: xss ok. ?>
 			</td>
 		</tr>
 
@@ -744,17 +744,17 @@ 
 	 *
 	 * @param int $order_id The ID of the order.
 	 */
-	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;
 		}
 
@@ -762,12 +762,12 @@ 
 
 		<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' ) ); // wpcs: xss ok. ?>
-				<?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')); // wpcs: xss ok. ?>
+				<?php esc_html_e('Stripe Payout:', 'woocommerce-gateway-stripe'); ?>
 			</td>
 			<td width="1%"></td>
 			<td class="total">
-				<?php echo wc_price( $net, array( 'currency' => $currency ) ); // wpcs: xss ok. ?>
+				<?php echo wc_price($net, array('currency' => $currency)); // wpcs: xss ok. ?>
 			</td>
 		</tr>
 
@@ -783,13 +783,13 @@ 
 	 *
 	 * @return string The localized error message.
 	 */
-	public function get_localized_error_message_from_response( $response ) {
+	public function get_localized_error_message_from_response($response) {
 		$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;
 		}
 
 		return $localized_message;
@@ -803,12 +803,12 @@ 
 	 * @param  WC_Order $order     The order to add a note to.
 	 * @throws WC_Stripe_Exception An exception with the right message.
 	 */
-	public function throw_localized_message( $response, $order ) {
-		$localized_message = $this->get_localized_error_message_from_response( $response );
+	public function throw_localized_message($response, $order) {
+		$localized_message = $this->get_localized_error_message_from_response($response);
 
-		$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);
 	}
 
 	/**
@@ -824,22 +824,22 @@ 
 	 * @throws WC_Stripe_Exception        If the payment is not accepted.
 	 * @return array|void
 	 */
-	public function retry_after_error( $response, $order, $retry, $force_save_source, $previous_error, $use_order_source ) {
-		if ( ! $retry ) {
-			$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 ), $localized_message ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.
+	public function retry_after_error($response, $order, $retry, $force_save_source, $previous_error, $use_order_source) {
+		if ( ! $retry) {
+			$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); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.
 		}
 
 		// Don't do anymore retries after this.
-		if ( 5 <= $this->retry_interval ) {
-			return $this->process_payment( $order->get_id(), false, $force_save_source, $response->error, $previous_error );
+		if (5 <= $this->retry_interval) {
+			return $this->process_payment($order->get_id(), false, $force_save_source, $response->error, $previous_error);
 		}
 
-		sleep( $this->retry_interval );
+		sleep($this->retry_interval);
 		$this->retry_interval++;
 
-		return $this->process_payment( $order->get_id(), true, $force_save_source, $response->error, $previous_error, $use_order_source );
+		return $this->process_payment($order->get_id(), true, $force_save_source, $response->error, $previous_error, $use_order_source);
 	}
 
 	/**
@@ -850,23 +850,23 @@ 
 	 * @param WC_Payment_Gateway[] $gateways A list of all available gateways.
 	 * @return WC_Payment_Gateway[]          Either the same list or an empty one in the right conditions.
 	 */
-	public function prepare_order_pay_page( $gateways ) {
-		if ( ! is_wc_endpoint_url( 'order-pay' ) || ! isset( $_GET['wc-stripe-confirmation'] ) ) { // wpcs: csrf ok.
+	public function prepare_order_pay_page($gateways) {
+		if ( ! is_wc_endpoint_url('order-pay') || ! isset($_GET['wc-stripe-confirmation'])) { // wpcs: csrf ok.
 			return $gateways;
 		}
 
 		try {
 			$this->prepare_intent_for_order_pay_page();
-		} catch ( WC_Stripe_Exception $e ) {
+		} catch (WC_Stripe_Exception $e) {
 			// Just show the full order pay page if there was a problem preparing the Payment Intent
 			return $gateways;
 		}
 
-		add_filter( 'woocommerce_checkout_show_terms', '__return_false' );
-		add_filter( 'woocommerce_pay_order_button_html', '__return_false' );
-		add_filter( 'woocommerce_available_payment_gateways', '__return_empty_array' );
-		add_filter( 'woocommerce_no_available_payment_methods_message', array( $this, 'change_no_available_methods_message' ) );
-		add_action( 'woocommerce_pay_order_after_submit', array( $this, 'render_payment_intent_inputs' ) );
+		add_filter('woocommerce_checkout_show_terms', '__return_false');
+		add_filter('woocommerce_pay_order_button_html', '__return_false');
+		add_filter('woocommerce_available_payment_gateways', '__return_empty_array');
+		add_filter('woocommerce_no_available_payment_methods_message', array($this, 'change_no_available_methods_message'));
+		add_action('woocommerce_pay_order_after_submit', array($this, 'render_payment_intent_inputs'));
 
 		return array();
 	}
@@ -879,7 +879,7 @@ 
 	 * @return string the new message.
 	 */
 	public function change_no_available_methods_message() {
-		return wpautop( __( "Almost there!\n\nYour order has already been created, the only thing that still needs to be done is for you to authorize the payment with your bank.", 'woocommerce-gateway-stripe' ) );
+		return wpautop(__("Almost there!\n\nYour order has already been created, the only thing that still needs to be done is for you to authorize the payment with your bank.", 'woocommerce-gateway-stripe'));
 	}
 
 	/**
@@ -890,19 +890,19 @@ 
 	 * @throws WC_Stripe_Exception
 	 * @since 4.3
 	 */
-	public function prepare_intent_for_order_pay_page( $order = null ) {
-		if ( ! isset( $order ) || empty( $order ) ) {
-			$order = wc_get_order( absint( get_query_var( 'order-pay' ) ) );
+	public function prepare_intent_for_order_pay_page($order = null) {
+		if ( ! isset($order) || empty($order)) {
+			$order = wc_get_order(absint(get_query_var('order-pay')));
 		}
-		$intent = $this->get_intent_from_order( $order );
+		$intent = $this->get_intent_from_order($order);
 
-		if ( ! $intent ) {
-			throw new WC_Stripe_Exception( 'Payment Intent not found', __( 'Payment Intent not found for order #' . $order->get_id(), 'woocommerce-gateway-stripe' ) );
+		if ( ! $intent) {
+			throw new WC_Stripe_Exception('Payment Intent not found', __('Payment Intent not found for order #' . $order->get_id(), 'woocommerce-gateway-stripe'));
 		}
 
-		if ( 'requires_payment_method' === $intent->status && isset( $intent->last_payment_error )
-		     && 'authentication_required' === $intent->last_payment_error->code ) {
-			$level3_data = $this->get_level3_data_from_order( $order );
+		if ('requires_payment_method' === $intent->status && isset($intent->last_payment_error)
+		     && 'authentication_required' === $intent->last_payment_error->code) {
+			$level3_data = $this->get_level3_data_from_order($order);
 			$intent      = WC_Stripe_API::request_with_level3_data(
 				array(
 					'payment_method' => $intent->last_payment_error->source->id,
@@ -912,8 +912,8 @@ 
 				$order
 			);
 
-			if ( isset( $intent->error ) ) {
-				throw new WC_Stripe_Exception( print_r( $intent, true ), $intent->error->message );
+			if (isset($intent->error)) {
+				throw new WC_Stripe_Exception(print_r($intent, true), $intent->error->message);
 			}
 		}
 
@@ -928,26 +928,26 @@ 
 	 * @throws WC_Stripe_Exception
 	 * @since 4.2
 	 */
-	public function render_payment_intent_inputs( $order = null ) {
-		if ( ! isset( $order ) || empty( $order ) ) {
-			$order = wc_get_order( absint( get_query_var( 'order-pay' ) ) );
+	public function render_payment_intent_inputs($order = null) {
+		if ( ! isset($order) || empty($order)) {
+			$order = wc_get_order(absint(get_query_var('order-pay')));
 		}
-		if ( ! isset( $this->order_pay_intent ) ) {
-			$this->prepare_intent_for_order_pay_page( $order );
+		if ( ! isset($this->order_pay_intent)) {
+			$this->prepare_intent_for_order_pay_page($order);
 		}
 
 		$verification_url = add_query_arg(
 			array(
 				'order'            => $order->get_id(),
-				'nonce'            => wp_create_nonce( 'wc_stripe_confirm_pi' ),
-				'redirect_to'      => rawurlencode( $this->get_return_url( $order ) ),
+				'nonce'            => wp_create_nonce('wc_stripe_confirm_pi'),
+				'redirect_to'      => rawurlencode($this->get_return_url($order)),
 				'is_pay_for_order' => true,
 			),
-			WC_AJAX::get_endpoint( 'wc_stripe_verify_intent' )
+			WC_AJAX::get_endpoint('wc_stripe_verify_intent')
 		);
 
-		echo '<input type="hidden" id="stripe-intent-id" value="' . esc_attr( $this->order_pay_intent->client_secret ) . '" />';
-		echo '<input type="hidden" id="stripe-intent-return" value="' . esc_attr( $verification_url ) . '" />';
+		echo '<input type="hidden" id="stripe-intent-id" value="' . esc_attr($this->order_pay_intent->client_secret) . '" />';
+		echo '<input type="hidden" id="stripe-intent-return" value="' . esc_attr($verification_url) . '" />';
 	}
 
 	/**
@@ -957,11 +957,11 @@ 
 	 * @param WC_Payment_Token $token Payment Token.
 	 * @return string                 Generated payment method HTML
 	 */
-	public function get_saved_payment_method_option_html( $token ) {
-		$html          = parent::get_saved_payment_method_option_html( $token );
+	public function get_saved_payment_method_option_html($token) {
+		$html          = parent::get_saved_payment_method_option_html($token);
 		$error_wrapper = '<div class="stripe-source-errors" role="alert"></div>';
 
-		return preg_replace( '~</(\w+)>\s*$~', "$error_wrapper</$1>", $html );
+		return preg_replace('~</(\w+)>\s*$~', "$error_wrapper</$1>", $html);
 	}
 
 	/**
@@ -971,18 +971,18 @@ 
 	 * @since 4.2.0
 	 * @param int $order_id The ID that will be used for the thank you page.
 	 */
-	public function check_intent_status_on_order_page( $order_id ) {
-		if ( empty( $order_id ) || absint( $order_id ) <= 0 ) {
+	public function check_intent_status_on_order_page($order_id) {
+		if (empty($order_id) || absint($order_id) <= 0) {
 			return;
 		}
 
-		$order = wc_get_order( absint( $order_id ) );
+		$order = wc_get_order(absint($order_id));
 
-		if ( ! $order ) {
+		if ( ! $order) {
 			return;
 		}
 
-		$this->verify_intent_after_checkout( $order );
+		$this->verify_intent_after_checkout($order);
 	}
 
 	/**
@@ -996,8 +996,8 @@ 
 	 * @param int   $order_id The ID of the order which is being paid for.
 	 * @return array
 	 */
-	public function modify_successful_payment_result( $result, $order_id ) {
-		if ( ! isset( $result['payment_intent_secret'] ) && ! isset( $result['setup_intent_secret'] ) ) {
+	public function modify_successful_payment_result($result, $order_id) {
+		if ( ! isset($result['payment_intent_secret']) && ! isset($result['setup_intent_secret'])) {
 			// Only redirects with intents need to be modified.
 			return $result;
 		}
@@ -1006,16 +1006,16 @@ 
 		$verification_url = add_query_arg(
 			array(
 				'order'       => $order_id,
-				'nonce'       => wp_create_nonce( 'wc_stripe_confirm_pi' ),
-				'redirect_to' => rawurlencode( $result['redirect'] ),
+				'nonce'       => wp_create_nonce('wc_stripe_confirm_pi'),
+				'redirect_to' => rawurlencode($result['redirect']),
 			),
-			WC_AJAX::get_endpoint( 'wc_stripe_verify_intent' )
+			WC_AJAX::get_endpoint('wc_stripe_verify_intent')
 		);
 
-		if ( isset( $result['payment_intent_secret'] ) ) {
-			$redirect = sprintf( '#confirm-pi-%s:%s', $result['payment_intent_secret'], rawurlencode( $verification_url ) );
-		} else if ( isset( $result['setup_intent_secret'] ) ) {
-			$redirect = sprintf( '#confirm-si-%s:%s', $result['setup_intent_secret'], rawurlencode( $verification_url ) );
+		if (isset($result['payment_intent_secret'])) {
+			$redirect = sprintf('#confirm-pi-%s:%s', $result['payment_intent_secret'], rawurlencode($verification_url));
+		} else if (isset($result['setup_intent_secret'])) {
+			$redirect = sprintf('#confirm-si-%s:%s', $result['setup_intent_secret'], rawurlencode($verification_url));
 		}
 
 		return array(
@@ -1027,8 +1027,8 @@ 
 	/**
 	 * Proceed with current request using new login session (to ensure consistent nonce).
 	 */
-	public function set_cookie_on_current_request( $cookie ) {
-		$_COOKIE[ LOGGED_IN_COOKIE ] = $cookie;
+	public function set_cookie_on_current_request($cookie) {
+		$_COOKIE[LOGGED_IN_COOKIE] = $cookie;
 	}
 
 	/**
@@ -1038,48 +1038,48 @@ 
 	 * @since 4.2.0
 	 * @param WC_Order $order The order which is in a transitional state.
 	 */
-	public function verify_intent_after_checkout( $order ) {
-		$payment_method = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->payment_method : $order->get_payment_method();
-		if ( $payment_method !== $this->id ) {
+	public function verify_intent_after_checkout($order) {
+		$payment_method = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->payment_method : $order->get_payment_method();
+		if ($payment_method !== $this->id) {
 			// If this is not the payment method, an intent would not be available.
 			return;
 		}
 
-		$intent = $this->get_intent_from_order( $order );
-		if ( ! $intent ) {
+		$intent = $this->get_intent_from_order($order);
+		if ( ! $intent) {
 			// No intent, redirect to the order received page for further actions.
 			return;
 		}
 
 		// A webhook might have modified or locked the order while the intent was retreived. This ensures we are reading the right status.
-		clean_post_cache( $order->get_id() );
-		$order = wc_get_order( $order->get_id() );
+		clean_post_cache($order->get_id());
+		$order = wc_get_order($order->get_id());
 
-		if ( ! $order->has_status( array( 'pending', 'failed' ) ) ) {
+		if ( ! $order->has_status(array('pending', 'failed'))) {
 			// If payment has already been completed, this function is redundant.
 			return;
 		}
 
-		if ( $this->lock_order_payment( $order, $intent ) ) {
+		if ($this->lock_order_payment($order, $intent)) {
 			return;
 		}
 
-		if ( 'setup_intent' === $intent->object && 'succeeded' === $intent->status ) {
+		if ('setup_intent' === $intent->object && 'succeeded' === $intent->status) {
 			WC()->cart->empty_cart();
-			if ( WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order( $order ) ) {
-				WC_Pre_Orders_Order::mark_order_as_pre_ordered( $order );
+			if (WC_Stripe_Helper::is_pre_orders_exists() && WC_Pre_Orders_Order::order_contains_pre_order($order)) {
+				WC_Pre_Orders_Order::mark_order_as_pre_ordered($order);
 			} else {
 				$order->payment_complete();
 			}
-		} else if ( 'succeeded' === $intent->status || 'requires_capture' === $intent->status ) {
+		} else if ('succeeded' === $intent->status || 'requires_capture' === $intent->status) {
 			// Proceed with the payment completion.
-			$this->handle_intent_verification_success( $order, $intent );
-		} else if ( 'requires_payment_method' === $intent->status ) {
+			$this->handle_intent_verification_success($order, $intent);
+		} else if ('requires_payment_method' === $intent->status) {
 			// `requires_payment_method` means that SCA got denied for the current payment method.
-			$this->handle_intent_verification_failure( $order, $intent );
+			$this->handle_intent_verification_failure($order, $intent);
 		}
 
-		$this->unlock_order_payment( $order );
+		$this->unlock_order_payment($order);
 	}
 
 	/**
@@ -1089,8 +1089,8 @@ 
 	 * @param WC_Order $order The order whose verification succeeded.
 	 * @param stdClass $intent The Payment Intent object.
 	 */
-	protected function handle_intent_verification_success( $order, $intent ) {
-		$this->process_response( end( $intent->charges->data ), $order );
+	protected function handle_intent_verification_success($order, $intent) {
+		$this->process_response(end($intent->charges->data), $order);
 	}
 
 	/**
@@ -1100,8 +1100,8 @@ 
 	 * @param WC_Order $order The order whose verification failed.
 	 * @param stdClass $intent The Payment Intent object.
 	 */
-	protected function handle_intent_verification_failure( $order, $intent ) {
-		$this->failed_sca_auth( $order, $intent );
+	protected function handle_intent_verification_failure($order, $intent) {
+		$this->failed_sca_auth($order, $intent);
 	}
 
 	/**
@@ -1111,18 +1111,18 @@ 
 	 * @param WC_Order $order  The order which should be checked.
 	 * @param object   $intent The intent, associated with the order.
 	 */
-	public function failed_sca_auth( $order, $intent ) {
+	public function failed_sca_auth($order, $intent) {
 		// If the order has already failed, do not repeat the same message.
-		if ( $order->has_status( 'failed' ) ) {
+		if ($order->has_status('failed')) {
 			return;
 		}
 
 		// Load the right message and update the status.
-		$status_message = isset( $intent->last_payment_error )
+		$status_message = isset($intent->last_payment_error)
 			/* translators: 1) The error message that was received from Stripe. */
-			? sprintf( __( 'Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe' ), $intent->last_payment_error->message )
-			: __( 'Stripe SCA authentication failed.', 'woocommerce-gateway-stripe' );
-		$order->update_status( 'failed', $status_message );
+			? sprintf(__('Stripe SCA authentication failed. Reason: %s', 'woocommerce-gateway-stripe'), $intent->last_payment_error->message)
+			: __('Stripe SCA authentication failed.', 'woocommerce-gateway-stripe');
+		$order->update_status('failed', $status_message);
 	}
 
 	/**
@@ -1133,10 +1133,10 @@ 
 	 *
 	 * @return string Checkout URL for the given order.
 	 */
-	public function get_checkout_payment_url( $pay_url, $order ) {
+	public function get_checkout_payment_url($pay_url, $order) {
 		global $wp;
-		if ( isset( $_GET['wc-stripe-confirmation'] ) && isset( $wp->query_vars['order-pay'] ) && $wp->query_vars['order-pay'] == $order->get_id() ) {
-			$pay_url = add_query_arg( 'wc-stripe-confirmation', 1, $pay_url );
+		if (isset($_GET['wc-stripe-confirmation']) && isset($wp->query_vars['order-pay']) && $wp->query_vars['order-pay'] == $order->get_id()) {
+			$pay_url = add_query_arg('wc-stripe-confirmation', 1, $pay_url);
 		}
 		return $pay_url;
 	}
@@ -1146,63 +1146,63 @@ 
 	 */
 	public function process_admin_options() {
 		// Load all old values before the new settings get saved.
-		$old_publishable_key      = $this->get_option( 'publishable_key' );
-		$old_secret_key           = $this->get_option( 'secret_key' );
-		$old_test_publishable_key = $this->get_option( 'test_publishable_key' );
-		$old_test_secret_key      = $this->get_option( 'test_secret_key' );
+		$old_publishable_key      = $this->get_option('publishable_key');
+		$old_secret_key           = $this->get_option('secret_key');
+		$old_test_publishable_key = $this->get_option('test_publishable_key');
+		$old_test_secret_key      = $this->get_option('test_secret_key');
 
 		parent::process_admin_options();
 
 		// Load all old values after the new settings have been saved.
-		$new_publishable_key      = $this->get_option( 'publishable_key' );
-		$new_secret_key           = $this->get_option( 'secret_key' );
-		$new_test_publishable_key = $this->get_option( 'test_publishable_key' );
-		$new_test_secret_key      = $this->get_option( 'test_secret_key' );
+		$new_publishable_key      = $this->get_option('publishable_key');
+		$new_secret_key           = $this->get_option('secret_key');
+		$new_test_publishable_key = $this->get_option('test_publishable_key');
+		$new_test_secret_key      = $this->get_option('test_secret_key');
 
 		// Checks whether a value has transitioned from a non-empty value to a new one.
-		$has_changed = function( $old_value, $new_value ) {
-			return ! empty( $old_value ) && ( $old_value !== $new_value );
+		$has_changed = function($old_value, $new_value) {
+			return ! empty($old_value) && ($old_value !== $new_value);
 		};
 
 		// Look for updates.
 		if (
-			$has_changed( $old_publishable_key, $new_publishable_key )
-			|| $has_changed( $old_secret_key, $new_secret_key )
-			|| $has_changed( $old_test_publishable_key, $new_test_publishable_key )
-			|| $has_changed( $old_test_secret_key, $new_test_secret_key )
+			$has_changed($old_publishable_key, $new_publishable_key)
+			|| $has_changed($old_secret_key, $new_secret_key)
+			|| $has_changed($old_test_publishable_key, $new_test_publishable_key)
+			|| $has_changed($old_test_secret_key, $new_test_secret_key)
 		) {
-			update_option( 'wc_stripe_show_changed_keys_notice', 'yes' );
+			update_option('wc_stripe_show_changed_keys_notice', 'yes');
 		}
 	}
 
-	public function validate_publishable_key_field( $key, $value ) {
-		$value = $this->validate_text_field( $key, $value );
-		if ( ! empty( $value ) && ! preg_match( '/^pk_live_/', $value ) ) {
-			throw new Exception( __( 'The "Live Publishable Key" should start with "pk_live", enter the correct key.', 'woocommerce-gateway-stripe' ) );
+	public function validate_publishable_key_field($key, $value) {
+		$value = $this->validate_text_field($key, $value);
+		if ( ! empty($value) && ! preg_match('/^pk_live_/', $value)) {
+			throw new Exception(__('The "Live Publishable Key" should start with "pk_live", enter the correct key.', 'woocommerce-gateway-stripe'));
 		}
 		return $value;
 	}
 
-	public function validate_secret_key_field( $key, $value ) {
-		$value = $this->validate_text_field( $key, $value );
-		if ( ! empty( $value ) && ! preg_match( '/^[rs]k_live_/', $value ) ) {
-			throw new Exception( __( 'The "Live Secret Key" should start with "sk_live" or "rk_live", enter the correct key.', 'woocommerce-gateway-stripe' ) );
+	public function validate_secret_key_field($key, $value) {
+		$value = $this->validate_text_field($key, $value);
+		if ( ! empty($value) && ! preg_match('/^[rs]k_live_/', $value)) {
+			throw new Exception(__('The "Live Secret Key" should start with "sk_live" or "rk_live", enter the correct key.', 'woocommerce-gateway-stripe'));
 		}
 		return $value;
 	}
 
-	public function validate_test_publishable_key_field( $key, $value ) {
-		$value = $this->validate_text_field( $key, $value );
-		if ( ! empty( $value ) && ! preg_match( '/^pk_test_/', $value ) ) {
-			throw new Exception( __( 'The "Test Publishable Key" should start with "pk_test", enter the correct key.', 'woocommerce-gateway-stripe' ) );
+	public function validate_test_publishable_key_field($key, $value) {
+		$value = $this->validate_text_field($key, $value);
+		if ( ! empty($value) && ! preg_match('/^pk_test_/', $value)) {
+			throw new Exception(__('The "Test Publishable Key" should start with "pk_test", enter the correct key.', 'woocommerce-gateway-stripe'));
 		}
 		return $value;
 	}
 
-	public function validate_test_secret_key_field( $key, $value ) {
-		$value = $this->validate_text_field( $key, $value );
-		if ( ! empty( $value ) && ! preg_match( '/^[rs]k_test_/', $value ) ) {
-			throw new Exception( __( 'The "Test Secret Key" should start with "sk_test" or "rk_test", enter the correct key.', 'woocommerce-gateway-stripe' ) );
+	public function validate_test_secret_key_field($key, $value) {
+		$value = $this->validate_text_field($key, $value);
+		if ( ! empty($value) && ! preg_match('/^[rs]k_test_/', $value)) {
+			throw new Exception(__('The "Test Secret Key" should start with "sk_test" or "rk_test", enter the correct key.', 'woocommerce-gateway-stripe'));
 		}
 		return $value;
 	}