<?php // phpcs:ignore Generic.PHP.RequireStrictTypes.MissingDeclaration

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namespace Automattic\WooCommerce\Blocks\Utils;

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use Automattic\Block_Scanner;

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/**

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* Class containing utility methods for dealing with the Cart and Checkout blocks.

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*/

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class CartCheckoutUtils {

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/**

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* Caches if we're on the cart page.

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*

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* @var bool

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*/

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private static $is_cart_page = null;

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/**

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* Caches if we're on the checkout page.

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*

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* @var bool

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*/

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private static $is_checkout_page = null;

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/**

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* Returns true if the current page is a specific page type (cart or checkout).

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*

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* This is determined by looking at the global $post object and comparing it to the post ID defined in settings,

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* or checking the page contents for a block or shortcode.

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*

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* This function cannot be used accurately before the `pre_get_posts` action has been run.

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*

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* @param string $page_type The page type to check for.

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* @return bool|null

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*/

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private static function is_page_type( string $page_type ): ?bool {

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if ( ! did_action( 'pre_get_posts' ) ) {

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return null;

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}

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$page_id = wc_get_page_id( $page_type );

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if ( $page_id && is_page( $page_id ) ) {

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return true;

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}

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// If the is_page check returned false, check the page contents for a cart block or shortcode.

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global $post;

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if ( null === $post ) {

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return null;

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}

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if ( $post instanceof \WP_Post ) {

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return wc_post_content_has_shortcode( 'cart' === $page_type ? 'woocommerce_cart' : 'woocommerce_checkout' ) || self::has_block_variation( 'woocommerce/classic-shortcode', 'shortcode', $page_type, $post->post_content );

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}

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return false;

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}

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/**

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* Returns true on the cart page.

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*

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* @return bool

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*/

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public static function is_cart_page(): bool {

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if ( null === self::$is_cart_page ) {

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self::$is_cart_page = self::is_page_type( 'cart' );

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}

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return true === self::$is_cart_page;

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}

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/**

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* Returns true on the checkout page.

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*

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* @return bool

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*/

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public static function is_checkout_page(): bool {

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if ( null === self::$is_checkout_page ) {

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self::$is_checkout_page = self::is_page_type( 'checkout' );

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}

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return true === self::$is_checkout_page;

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}

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/**

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* Returns true if shipping methods exist in the store. Excludes local pickup and only counts enabled shipping methods.

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*

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* @return bool true if shipping methods exist.

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*/

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public static function shipping_methods_exist() {

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// Local pickup is included with legacy shipping methods since they do not support shipping zones.

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$local_pickup_count = count(

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array_filter(

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WC()->shipping()->get_shipping_methods(),

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function ( $method ) {

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return isset( $method->enabled ) && 'yes' === $method->enabled && ! $method->supports( 'shipping-zones' ) && $method->supports( 'local-pickup' );

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}

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)

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);

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$shipping_methods_count = wc_get_shipping_method_count( true, true ) - $local_pickup_count;

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return $shipping_methods_count > 0;

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}

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/**

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* Check if the post content contains a block with a specific attribute value.

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*

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* @param string $block_id The block ID to check for.

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* @param string $attribute The attribute to check.

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* @param string $value The value to check for.

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* @param string $post_content The post content to check.

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* @return boolean

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*/

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public static function has_block_variation( $block_id, $attribute, $value, $post_content ) {

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if ( ! $post_content ) {

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return false;

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}

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$scanner = Block_Scanner::create( $post_content );

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if ( ! $scanner ) {

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return false;

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}

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while ( $scanner->next_delimiter() ) {

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if ( ! $scanner->opens_block( $block_id ) ) {

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continue;

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}

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$attrs = $scanner->allocate_and_return_parsed_attributes();

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if ( isset( $attrs[ $attribute ] ) && $value === $attrs[ $attribute ] ) {

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return true;

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}

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// `Cart` is default for `woocommerce/classic-shortcode` so it will be empty in the block attributes.

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if ( 'woocommerce/classic-shortcode' === $block_id &&

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'shortcode' === $attribute &&

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'cart' === $value &&

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! isset( $attrs['shortcode'] ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Checks if the default cart page is using the Cart block.

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*

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* @return bool true if the WC cart page is using the Cart block.

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*/

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public static function is_cart_block_default() {

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if ( wp_is_block_theme() ) {

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// Ignore the pages and check the templates.

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$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'cart' ), 'wp_template' );

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foreach ( $templates_from_db as $template ) {

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if ( has_block( 'woocommerce/cart', $template->content ) ) {

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return true;

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}

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}

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}

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$cart_page_id = wc_get_page_id( 'cart' );

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return $cart_page_id && has_block( 'woocommerce/cart', $cart_page_id );

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}

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/**

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* Checks if the default checkout page is using the Checkout block.

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*

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* @return bool true if the WC checkout page is using the Checkout block.

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*/

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public static function is_checkout_block_default() {

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if ( wp_is_block_theme() ) {

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// Ignore the pages and check the templates.

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$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'checkout' ), 'wp_template' );

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foreach ( $templates_from_db as $template ) {

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if ( has_block( 'woocommerce/checkout', $template->content ) ) {

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return true;

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}

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}

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}

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$checkout_page_id = wc_get_page_id( 'checkout' );

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return $checkout_page_id && has_block( 'woocommerce/checkout', $checkout_page_id );

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}

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/**

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* Migrate checkout block field visibility attributes to settings when using the checkout block.

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*

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* This migration routine is called if the options (woocommerce_checkout_phone_field, woocommerce_checkout_company_field,

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* woocommerce_checkout_address_2_field) are not set. They are not set by default; they were orignally set by the

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* customizer interface of the legacy shortcode based checkout.

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*

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* Once migration is initiated, the settings will be updated and will not trigger this routine again.

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*

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* Note: The block only stores non-default attributes. Not all attributes will be present.

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*

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* e.g. `{"showCompanyField":true,"requireCompanyField":true,"showApartmentField":false,"className":"wc-block-checkout"}`

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*

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* If the attributes are missing, we assume default values are needed.

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*/

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protected static function migrate_checkout_block_field_visibility_attributes() {

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// Before migrating attributes, migrate the "default" options checkout block uses into the settings.

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update_option( 'woocommerce_checkout_phone_field', 'optional' );

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update_option( 'woocommerce_checkout_company_field', 'hidden' );

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update_option( 'woocommerce_checkout_address_2_field', 'optional' );

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// Parse the block from the checkout page.

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$checkout_blocks = \WC_Blocks_Utils::get_blocks_from_page( 'woocommerce/checkout', 'checkout' );

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if ( empty( $checkout_blocks ) || ! isset( $checkout_blocks[0]['attrs'] ) ) {

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return;

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}

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// Combine actual attributes with default values.

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$block_attributes = wp_parse_args(

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$checkout_blocks[0]['attrs'],

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array(

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'showPhoneField' => true,

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'requirePhoneField' => false,

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'showCompanyField' => false,

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'requireCompanyField' => false,

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'showApartmentField' => true,

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'requireApartmentField' => false,

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)

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);

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if ( $block_attributes['showPhoneField'] ) {

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update_option( 'woocommerce_checkout_phone_field', $block_attributes['requirePhoneField'] ? 'required' : 'optional' );

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} else {

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update_option( 'woocommerce_checkout_phone_field', 'hidden' );

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}

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if ( $block_attributes['showCompanyField'] ) {

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update_option( 'woocommerce_checkout_company_field', $block_attributes['requireCompanyField'] ? 'required' : 'optional' );

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} else {

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update_option( 'woocommerce_checkout_company_field', 'hidden' );

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}

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if ( $block_attributes['showApartmentField'] ) {

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update_option( 'woocommerce_checkout_address_2_field', $block_attributes['requireApartmentField'] ? 'required' : 'optional' );

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} else {

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update_option( 'woocommerce_checkout_address_2_field', 'hidden' );

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}

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}

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/**

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* Get the default visibility for the address_2 field.

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*

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* @return string

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*/

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public static function get_company_field_visibility() {

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$option_value = get_option( 'woocommerce_checkout_company_field' );

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if ( $option_value ) {

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return $option_value;

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}

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if ( self::is_checkout_block_default() ) {

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self::migrate_checkout_block_field_visibility_attributes();

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return get_option( 'woocommerce_checkout_company_field', 'hidden' );

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}

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return 'optional';

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}

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/**

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* Get the default visibility for the address_2 field.

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*

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* @return string

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*/

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public static function get_address_2_field_visibility() {

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$option_value = get_option( 'woocommerce_checkout_address_2_field' );

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if ( $option_value ) {

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return $option_value;

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}

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if ( self::is_checkout_block_default() ) {

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self::migrate_checkout_block_field_visibility_attributes();

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return get_option( 'woocommerce_checkout_address_2_field', 'optional' );

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}

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return 'optional';

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}

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/**

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* Get the default visibility for the address_2 field.

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*

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* @return string

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*/

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public static function get_phone_field_visibility() {

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$option_value = get_option( 'woocommerce_checkout_phone_field' );

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if ( $option_value ) {

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return $option_value;

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}

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if ( self::is_checkout_block_default() ) {

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self::migrate_checkout_block_field_visibility_attributes();

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return get_option( 'woocommerce_checkout_phone_field', 'optional' );

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}

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return 'required';

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}

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/**

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* Checks if the template overriding the page loads the page content or not.

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* Templates by default load the page content, but if that block is deleted the content can get out of sync with the one presented in the page editor.

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*

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* @param string $block The block to check.

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*

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* @return bool true if the template has out of sync content.

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*/

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public static function is_overriden_by_custom_template_content( string $block ): bool {

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$block = str_replace( 'woocommerce/', '', $block );

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if ( wp_is_block_theme() ) {

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$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'page-' . $block ) );

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foreach ( $templates_from_db as $template ) {

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if ( ! has_block( 'woocommerce/page-content-wrapper', $template->content ) ) {

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// Return true if the template does not load the page content via the woocommerce/page-content-wrapper block.

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return true;

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}

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}

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}

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return false;

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}

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/**

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* Gets country codes, names, states, and locale information.

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*

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* @return array

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*/

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public static function get_country_data() {

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$billing_countries = WC()->countries->get_allowed_countries();

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$shipping_countries = WC()->countries->get_shipping_countries();

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$country_states = wc()->countries->get_states();

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$all_countries = self::deep_sort_with_accents( array_unique( array_merge( $billing_countries, $shipping_countries ) ) );

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$country_locales = array_map(

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function ( $locale ) {

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foreach ( $locale as $field => $field_data ) {

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if ( isset( $field_data['priority'] ) ) {

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$locale[ $field ]['index'] = $field_data['priority'];

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unset( $locale[ $field ]['priority'] );

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}

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if ( isset( $field_data['class'] ) ) {

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unset( $locale[ $field ]['class'] );

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}

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}

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return $locale;

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},

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WC()->countries->get_country_locale()

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);

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$country_data = array();

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foreach ( array_keys( $all_countries ) as $country_code ) {

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$country_data[ $country_code ] = array(

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'allowBilling' => isset( $billing_countries[ $country_code ] ),

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'allowShipping' => isset( $shipping_countries[ $country_code ] ),

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'states' => $country_states[ $country_code ] ?? array(),

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'locale' => $country_locales[ $country_code ] ?? array(),

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);

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}

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return $country_data;

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}

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/**

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* Removes accents from an array of values, sorts by the values, then returns the original array values sorted.

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*

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* @param array $sort_array Array of values to sort.

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* @return array Sorted array.

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*/

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protected static function deep_sort_with_accents( $sort_array ) {

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if ( ! is_array( $sort_array ) || empty( $sort_array ) ) {

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return $sort_array;

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}

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$array_without_accents = array_map(

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function ( $value ) {

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return is_array( $value )

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? self::deep_sort_with_accents( $value )

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: remove_accents( wc_strtolower( html_entity_decode( $value ) ) );

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},

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$sort_array

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);

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asort( $array_without_accents );

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return array_replace( $array_without_accents, $sort_array );

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}

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/**

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* Retrieves formatted shipping zones from WooCommerce.

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*

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* @return array An array of formatted shipping zones.

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*/

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public static function get_shipping_zones() {

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$shipping_zones = \WC_Shipping_Zones::get_zones();

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$formatted_shipping_zones = array_reduce(

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$shipping_zones,

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function ( $acc, $zone ) {

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$acc[] = array(

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'id' => $zone['id'],

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'title' => $zone['zone_name'],

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'description' => $zone['formatted_zone_location'],

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);

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return $acc;

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},

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array()

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);

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$formatted_shipping_zones[] = array(

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'id' => 0,

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'title' => __( 'International', 'woocommerce' ),

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'description' => __( 'Locations outside all other zones', 'woocommerce' ),

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);

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return $formatted_shipping_zones;

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}

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/**

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* Recursively search the checkout block to find the express checkout block and

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* get the button style attributes using the parse_blocks function.

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*

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* @param array $blocks Blocks to search.

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* @param string $cart_or_checkout The block type to check.

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*

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* @return array Block attributes.

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*/

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public static function find_express_checkout_attributes_in_parsed_blocks( $blocks, $cart_or_checkout ) {

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$express_block_name = 'woocommerce/' . $cart_or_checkout . '-express-payment-block';

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foreach ( $blocks as $block ) {

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if ( ! empty( $block['blockName'] ) && $express_block_name === $block['blockName'] && ! empty( $block['attrs'] ) ) {

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return $block['attrs'];

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}

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if ( ! empty( $block['innerBlocks'] ) ) {

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$answer = self::find_express_checkout_attributes_in_parsed_blocks( $block['innerBlocks'], $cart_or_checkout );

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if ( $answer ) {

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return $answer;

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}

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}

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}

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}

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[443] Fix | Delete

/**

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* Recursively search the checkout block to find the express checkout block and

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* get the button style attributes

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*

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* @param string|array $post_content The post content.

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* @param string $cart_or_checkout The block type to check.

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*

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* @return array|null Block attributes, if present and valid, otherwise `null`.

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*/

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public static function find_express_checkout_attributes( $post_content, $cart_or_checkout ) {

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if ( is_array( $post_content ) ) {

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// If an array is passed, assume it's already been parsed with parse_blocks,

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// use the old method, and show a deprecation warning.

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wc_deprecated_argument(

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'post_content',

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'10.3.0',

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'Passing parsed blocks as an array in $post_content is deprecated. Please pass the post content as a string.'

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);

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return self::find_express_checkout_attributes_in_parsed_blocks( $post_content, $cart_or_checkout );

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}

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$express_block_name = 'woocommerce/' . $cart_or_checkout . '-express-payment-block';

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$scanner = Block_Scanner::create( $post_content );

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while ( $scanner->next_delimiter() ) {

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if ( $scanner->opens_block( $express_block_name ) ) {

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return $scanner->allocate_and_return_parsed_attributes();

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}

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}

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return null;

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}

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[477] Fix | Delete

/**

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* Given an array of blocks, find the express payment block and update its attributes.

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*

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* @param array $blocks Blocks to search.

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* @param string $cart_or_checkout The block type to check.

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* @param array $updated_attrs The new attributes to set.

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*/

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public static function update_blocks_with_new_attrs( &$blocks, $cart_or_checkout, $updated_attrs ) {

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$express_block_name = 'woocommerce/' . $cart_or_checkout . '-express-payment-block';

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foreach ( $blocks as $key => &$block ) {

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if ( ! empty( $block['blockName'] ) && $express_block_name === $block['blockName'] ) {

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$blocks[ $key ]['attrs'] = $updated_attrs;

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}

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if ( ! empty( $block['innerBlocks'] ) ) {

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self::update_blocks_with_new_attrs( $block['innerBlocks'], $cart_or_checkout, $updated_attrs );

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}

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}

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}

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[497] Fix | Delete

/**

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* Check if the cart page is defined.

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