<?php

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/**

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* REST API Reports Cache.

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*

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* Handles report data object caching.

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*/

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namespace Automattic\WooCommerce\Admin\API\Reports;

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defined( 'ABSPATH' ) || exit;

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/**

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* REST API Reports Cache class.

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*/

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class Cache {

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/**

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* Cache version. Used to invalidate all cached values.

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*/

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const VERSION_OPTION = 'woocommerce_reports';

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/**

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* Invalidate cache.

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*/

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public static function invalidate() {

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\WC_Cache_Helper::get_transient_version( self::VERSION_OPTION, true );

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}

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/**

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* Get cache version number.

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*

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* @return string

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*/

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public static function get_version() {

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$version = \WC_Cache_Helper::get_transient_version( self::VERSION_OPTION );

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return $version;

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}

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/**

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* Get cached value.

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*

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* @param string $key Cache key.

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* @return mixed

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*/

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public static function get( $key ) {

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$transient_version = self::get_version();

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$transient_value = get_transient( $key );

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if (

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isset( $transient_value['value'], $transient_value['version'] ) &&

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$transient_value['version'] === $transient_version

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) {

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return $transient_value['value'];

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}

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return false;

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}

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/**

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* Update cached value.

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*

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* @param string $key Cache key.

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* @param mixed $value New value.

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* @return bool

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*/

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public static function set( $key, $value ) {

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$transient_version = self::get_version();

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$transient_value = array(

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'version' => $transient_version,

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'value' => $value,

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);

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$result = set_transient( $key, $transient_value, WEEK_IN_SECONDS );

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return $result;

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}

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}

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