<?php

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declare(strict_types=1);

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namespace Automattic\WooCommerce\StoreApi\Utilities;

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/**

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* PaymentUtils

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*

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* Utility class for payment methods.

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*/

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class PaymentUtils {

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/**

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* Callback for woocommerce_payment_methods_list_item filter to add token id

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* to the generated list.

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*

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* @param array $list_item The current list item for the saved payment method.

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* @param \WC_Token $token The token for the current list item.

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*

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* @return array The list item with the token id added.

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*/

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public static function include_token_id_with_payment_methods( $list_item, $token ) {

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$list_item['tokenId'] = $token->get_id();

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$brand = ! empty( $list_item['method']['brand'] ) ?

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strtolower( $list_item['method']['brand'] ) :

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'';

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if ( ! empty( $brand ) && esc_html__( 'Credit card', 'woocommerce' ) !== $brand ) {

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$list_item['method']['brand'] = wc_get_credit_card_type_label( $brand );

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}

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return $list_item;

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}

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/**

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* Get enabled payment gateways.

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*

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* @return array

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*/

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public static function get_enabled_payment_gateways() {

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$payment_gateways = WC()->payment_gateways->payment_gateways();

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return array_filter(

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$payment_gateways,

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function ( $payment_gateway ) {

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return 'yes' === $payment_gateway->enabled;

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}

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);

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}

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/**

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* Returns enabled saved payment methods for a customer and the default method if there are multiple.

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*

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* @return array

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*/

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public static function get_saved_payment_methods() {

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if ( ! is_user_logged_in() ) {

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return;

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}

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add_filter( 'woocommerce_payment_methods_list_item', [ self::class, 'include_token_id_with_payment_methods' ], 10, 2 );

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$enabled_payment_gateways = self::get_enabled_payment_gateways();

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$saved_payment_methods = wc_get_customer_saved_methods_list( get_current_user_id() );

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$payment_methods = [

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'enabled' => [],

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'default' => null,

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];

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// Filter out payment methods that are not enabled.

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foreach ( $saved_payment_methods as $payment_method_group => $saved_payment_methods ) {

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$payment_methods['enabled'][ $payment_method_group ] = array_values(

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array_filter(

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$saved_payment_methods,

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function ( $saved_payment_method ) use ( $enabled_payment_gateways, &$payment_methods ) {

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if ( true === $saved_payment_method['is_default'] && null === $payment_methods['default'] ) {

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$payment_methods['default'] = $saved_payment_method;

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}

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return in_array( $saved_payment_method['method']['gateway'], array_keys( $enabled_payment_gateways ), true );

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}

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)

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);

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}

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remove_filter( 'woocommerce_payment_methods_list_item', [ self::class, 'include_token_id_with_payment_methods' ], 10, 2 );

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return $payment_methods;

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}

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/**

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* Returns the default payment method for a customer.

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*

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* @return string

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*/

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public static function get_default_payment_method() {

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$saved_payment_methods = self::get_saved_payment_methods();

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// A saved payment method exists, set as default.

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if ( $saved_payment_methods && ! empty( $saved_payment_methods['default'] ) ) {

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return $saved_payment_methods['default']['method']['gateway'] ?? '';

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}

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$chosen_payment_method = WC()->session->get( 'chosen_payment_method' );

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// If payment method is already stored in session, use it.

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if ( $chosen_payment_method ) {

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return $chosen_payment_method;

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}

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// If no saved payment method exists, use the first enabled payment method.

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$enabled_payment_gateways = self::get_enabled_payment_gateways();

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if ( empty( $enabled_payment_gateways ) ) {

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return '';

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}

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$first_key = array_key_first( $enabled_payment_gateways );

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$first_payment_method = $enabled_payment_gateways[ $first_key ];

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return $first_payment_method->id ?? '';

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}

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}

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