<?php

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declare(strict_types=1);

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namespace Automattic\WooCommerce\Blocks\Utils;

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use InvalidArgumentException;

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use Automattic\WooCommerce\Blocks\Package;

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use Automattic\WooCommerce\StoreApi\StoreApi;

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use Automattic\WooCommerce\StoreApi\SchemaController;

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use Automattic\WooCommerce\StoreApi\Utilities\CartController;

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use Automattic\WooCommerce\StoreApi\Schemas\V1\CartSchema;

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/**

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* Manages the registration of interactivity config and state that is commonly shared by WooCommerce blocks.

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* Initialization only happens on the first call to initialize_shared_config.

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* Intended to be used as a singleton.

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*/

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trait BlocksSharedState {

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/**

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* The consent statement for using private APIs of this class.

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*

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* @var string

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*/

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private static $consent_statement = 'I acknowledge that using private APIs means my theme or plugin will inevitably break in the next version of WooCommerce';

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/**

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* The namespace for the config.

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*

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* @var string

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*/

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private static $settings_namespace = 'woocommerce';

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/**

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* Whether the core config has been registered.

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*

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* @var boolean

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*/

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private static $core_config_registered = false;

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/**

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* Cart state.

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*

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* @var mixed

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*/

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private static $blocks_shared_cart_state;

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/**

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* Prevent caching on certain pages

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*/

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private static function prevent_cache() {

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\WC_Cache_Helper::set_nocache_constants();

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nocache_headers();

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}

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/**

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* Check that the consent statement was passed.

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*

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* @param string $consent_statement - The consent statement string.

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* @return true

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* @throws \InvalidArgumentException - If the statement does not match the class consent statement string.

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*/

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private static function check_consent( $consent_statement ) {

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if ( $consent_statement !== self::$consent_statement ) {

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throw new InvalidArgumentException( 'This method cannot be called without consenting the API may change.' );

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}

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return true;

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}

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/**

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* Initialize the shared core config.

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*

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* @param string $consent_statement - The consent statement string.

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*/

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public function initialize_shared_config( $consent_statement ) {

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self::check_consent( $consent_statement );

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if ( self::$core_config_registered ) {

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return;

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}

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self::$core_config_registered = true;

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wp_interactivity_config( self::$settings_namespace, self::get_currency_data() );

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wp_interactivity_config( self::$settings_namespace, self::get_locale_data() );

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wp_interactivity_config( self::$settings_namespace, self::get_core_data() );

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}

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/**

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* Initialize interactivity state for cart that is needed by multiple blocks.

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*

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* @param string $consent_statement - The consent statement string.

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* @return void

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*/

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public function register_cart_interactivity( $consent_statement ) {

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self::check_consent( $consent_statement );

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

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$cart_exists = isset( WC()->cart );

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$cart_has_contents = $cart_exists && ! WC()->cart->is_empty();

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if ( $cart_exists ) {

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$cart_controller = new CartController();

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$cart_object = $cart_controller->get_cart_for_response();

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$store_api = Package::container()->get( StoreApi::class );

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$schema_controller = $store_api->container()->get( SchemaController::class );

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$cart_schema = $schema_controller->get( CartSchema::IDENTIFIER );

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$cart_response = $cart_schema->get_item_response( $cart_object );

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self::$blocks_shared_cart_state = $cart_response;

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} else {

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self::$blocks_shared_cart_state = array();

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}

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if ( $cart_has_contents ) {

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self::prevent_cache();

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}

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wp_interactivity_state(

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'woocommerce',

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array(

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'cart' => self::$blocks_shared_cart_state,

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'nonce' => wp_create_nonce( 'wc_store_api' ),

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'noticeId' => '',

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'restUrl' => get_rest_url(),

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)

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);

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}

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}

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/**

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* Get core data to include in settings.

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*

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* @return array

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*/

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private static function get_core_data() {

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return [

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'isBlockTheme' => wp_is_block_theme(),

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];

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}

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/**

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* Get currency data to include in settings.

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*

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* @return array

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*/

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private static function get_currency_data() {

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$currency = get_woocommerce_currency();

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return [

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'currency' => [

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'code' => $currency,

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'precision' => wc_get_price_decimals(),

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'symbol' => html_entity_decode( get_woocommerce_currency_symbol( $currency ) ),

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'symbolPosition' => get_option( 'woocommerce_currency_pos' ),

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'decimalSeparator' => wc_get_price_decimal_separator(),

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'thousandSeparator' => wc_get_price_thousand_separator(),

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'priceFormat' => html_entity_decode( get_woocommerce_price_format() ),

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],

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];

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}

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/**

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* Get locale data to include in settings.

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*

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* @return array

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*/

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private static function get_locale_data() {

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global $wp_locale;

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return [

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'locale' => [

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'siteLocale' => get_locale(),

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'userLocale' => get_user_locale(),

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'weekdaysShort' => array_values( $wp_locale->weekday_abbrev ),

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],

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];

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}

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/**

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* Add placeholder image.

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*

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* @param string $consent_statement - The consent statement string.

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*/

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public function placeholder_image( $consent_statement ) {

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self::check_consent( $consent_statement );

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wp_interactivity_config(

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self::$settings_namespace,

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array( 'placeholderImgSrc' => wc_placeholder_img_src() )

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);

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}

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}

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