<?php

namespace PhpOffice\PhpSpreadsheet;

use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PhpOffice\PhpSpreadsheet\Chart\Renderer\IRenderer;
use PhpOffice\PhpSpreadsheet\Collection\Memory;

> use Psr\Http\Client\ClientInterface;
use Psr\SimpleCache\CacheInterface;
> use Psr\Http\Message\RequestFactoryInterface;



class Settings
{
    /**
     * Class name of the chart renderer used for rendering charts
     * eg: PhpOffice\PhpSpreadsheet\Chart\Renderer\JpGraph.
     *
     * @var string
     */
    private static $chartRenderer;

    /**
     * Default options for libxml loader.
     *
     * @var int
     */

<     private static $libXmlLoaderOptions = null;



>     private static $libXmlLoaderOptions;



    /**

<      * Allow/disallow libxml_disable_entity_loader() call when not thread safe.
<      * Default behaviour is to do the check, but if you're running PHP versions
<      *      7.2 < 7.2.1
<      *      7.1 < 7.1.13
<      *      7.0 < 7.0.27
<      * then you may need to disable this check to prevent unwanted behaviour in other threads
<      * SECURITY WARNING: Changing this flag is not recommended.



>      * The cache implementation to be used for cell collection.


     *

<      * @var bool



>      * @var CacheInterface


     */

<     private static $libXmlDisableEntityLoader = true;



>     private static $cache;



    /**

<      * The cache implementation to be used for cell collection.



>      * The HTTP client implementation to be used for network request.


     *

<      * @var CacheInterface



>      * @var null|ClientInterface


     */

<     private static $cache;



>     private static $httpClient;
> 
>     /**
>      * @var null|RequestFactoryInterface
>      */
>     private static $requestFactory;



    /**
     * Set the locale code to use for formula translations and any special formatting.
     *
     * @param string $locale The locale code to use (e.g. "fr" or "pt_br" or "en_uk")
     *
     * @return bool Success or failure
     */

<     public static function setLocale($locale)



>     public static function setLocale(string $locale)


    {
        return Calculation::getInstance()->setLocale($locale);
    }


>     public static function getLocale(): string
    /**
>     {
     * Identify to PhpSpreadsheet the external library to use for rendering charts.
>         return Calculation::getInstance()->getLocale();
     *
>     }
     * @param string $rendererClass Class name of the chart renderer
> 



<      * @param string $rendererClass Class name of the chart renderer



>      * @param string $rendererClassName Class name of the chart renderer



<      *
<      * @throws Exception


     */

<     public static function setChartRenderer($rendererClass)



>     public static function setChartRenderer(string $rendererClassName): void


    {

<         if (!is_a($rendererClass, IRenderer::class, true)) {



>         if (!is_a($rendererClassName, IRenderer::class, true)) {


            throw new Exception('Chart renderer must implement ' . IRenderer::class);
        }


<         self::$chartRenderer = $rendererClass;



>         self::$chartRenderer = $rendererClassName;


    }

    /**
     * Return the Chart Rendering Library that PhpSpreadsheet is currently configured to use.
     *
     * @return null|string Class name of the chart renderer
     *    eg: PhpOffice\PhpSpreadsheet\Chart\Renderer\JpGraph
     */

<     public static function getChartRenderer()



>     public static function getChartRenderer(): ?string


    {
        return self::$chartRenderer;
    }


>     public static function htmlEntityFlags(): int
    /**
>     {
     * Set default options for libxml loader.
>         return \ENT_COMPAT;
     *
>     }
     * @param int $options Default options for libxml loader
> 


     */

<     public static function setLibXmlLoaderOptions($options)



>     public static function setLibXmlLoaderOptions($options): void


    {
        if ($options === null && defined('LIBXML_DTDLOAD')) {
            $options = LIBXML_DTDLOAD | LIBXML_DTDATTR;
        }
        self::$libXmlLoaderOptions = $options;
    }

    /**
     * Get default options for libxml loader.
     * Defaults to LIBXML_DTDLOAD | LIBXML_DTDATTR when not set explicitly.
     *
     * @return int Default options for libxml loader
     */

<     public static function getLibXmlLoaderOptions()



>     public static function getLibXmlLoaderOptions(): int


    {
        if (self::$libXmlLoaderOptions === null && defined('LIBXML_DTDLOAD')) {
            self::setLibXmlLoaderOptions(LIBXML_DTDLOAD | LIBXML_DTDATTR);
        } elseif (self::$libXmlLoaderOptions === null) {

<             self::$libXmlLoaderOptions = true;



>             self::$libXmlLoaderOptions = 0;


        }

        return self::$libXmlLoaderOptions;
    }

    /**

<      * Enable/Disable the entity loader for libxml loader.
<      * Allow/disallow libxml_disable_entity_loader() call when not thread safe.
<      * Default behaviour is to do the check, but if you're running PHP versions
<      *      7.2 < 7.2.1
<      *      7.1 < 7.1.13
<      *      7.0 < 7.0.27
<      * then you may need to disable this check to prevent unwanted behaviour in other threads
<      * SECURITY WARNING: Changing this flag to false is not recommended.



>      * Deprecated, has no effect.


     *
     * @param bool $state

>      *
     */
>      * @deprecated will be removed without replacement as it is no longer necessary on PHP 7.3.0+



<     public static function setLibXmlDisableEntityLoader($state)



>     public static function setLibXmlDisableEntityLoader($state): void


    {

<         self::$libXmlDisableEntityLoader = (bool) $state;



>         // noop


    }

    /**

<      * Return the state of the entity loader (disabled/enabled) for libxml loader.



>      * Deprecated, has no effect.


     *
     * @return bool $state

>      *
     */
>      * @deprecated will be removed without replacement as it is no longer necessary on PHP 7.3.0+



<     public static function getLibXmlDisableEntityLoader()



>     public static function getLibXmlDisableEntityLoader(): bool


    {

<         return self::$libXmlDisableEntityLoader;



>         return true;


    }

    /**
     * Sets the implementation of cache that should be used for cell collection.

<      *
<      * @param CacheInterface $cache


     */

<     public static function setCache(CacheInterface $cache)



>     public static function setCache(CacheInterface $cache): void


    {
        self::$cache = $cache;
    }

    /**

<      * Gets the implementation of cache that should be used for cell collection.
<      *
<      * @return CacheInterface



>      * Gets the implementation of cache that is being used for cell collection.


     */

<     public static function getCache()



>     public static function getCache(): CacheInterface


    {
        if (!self::$cache) {
            self::$cache = new Memory();
        }

        return self::$cache;

>     }
    }
> 
}
>     /**
>      * Set the HTTP client implementation to be used for network request.
>      */
>     public static function setHttpClient(ClientInterface $httpClient, RequestFactoryInterface $requestFactory): void
>     {
>         self::$httpClient = $httpClient;
>         self::$requestFactory = $requestFactory;
>     }
> 
>     /**
>      * Unset the HTTP client configuration.
>      */
>     public static function unsetHttpClient(): void
>     {
>         self::$httpClient = null;
>         self::$requestFactory = null;
>     }
> 
>     /**
>      * Get the HTTP client implementation to be used for network request.
>      */
>     public static function getHttpClient(): ClientInterface
>     {
>         self::assertHttpClient();
> 
>         return self::$httpClient;
>     }
> 
>     /**
>      * Get the HTTP request factory.
>      */
>     public static function getRequestFactory(): RequestFactoryInterface
>     {
>         self::assertHttpClient();
> 
>         return self::$requestFactory;
>     }
> 
>     private static function assertHttpClient(): void
>     {
>         if (!self::$httpClient || !self::$requestFactory) {
>             throw new Exception('HTTP client must be configured via Settings::setHttpClient() to be able to use WEBSERVICE function.');
>         }