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<?php
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namespace PhpOffice\PhpSpreadsheet\Reader\Xlsx;
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use PhpOffice\PhpSpreadsheet\Document\Properties as DocumentProperties;
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use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner;
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use PhpOffice\PhpSpreadsheet\Settings;
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use SimpleXMLElement;
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class Properties
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{
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    /** @var XmlScanner */
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    private $securityScanner;
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    /** @var DocumentProperties */
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    private $docProps;
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    public function __construct(XmlScanner $securityScanner, DocumentProperties $docProps)
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    {
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        $this->securityScanner = $securityScanner;
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        $this->docProps = $docProps;
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    }
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    /**
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     * @param mixed $obj
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     */
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    private static function nullOrSimple($obj): ?SimpleXMLElement
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    {
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        return ($obj instanceof SimpleXMLElement) ? $obj : null;
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    }
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    private function extractPropertyData(string $propertyData): ?SimpleXMLElement
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    {
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        // okay to omit namespace because everything will be processed by xpath
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        $obj = simplexml_load_string(
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            $this->securityScanner->scan($propertyData),
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            'SimpleXMLElement',
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            Settings::getLibXmlLoaderOptions()
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        );
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        return self::nullOrSimple($obj);
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    }
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    public function readCoreProperties(string $propertyData): void
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    {
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        $xmlCore = $this->extractPropertyData($propertyData);
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        if (is_object($xmlCore)) {
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            $xmlCore->registerXPathNamespace('dc', Namespaces::DC_ELEMENTS);
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            $xmlCore->registerXPathNamespace('dcterms', Namespaces::DC_TERMS);
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            $xmlCore->registerXPathNamespace('cp', Namespaces::CORE_PROPERTIES2);
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            $this->docProps->setCreator((string) self::getArrayItem($xmlCore->xpath('dc:creator')));
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            $this->docProps->setLastModifiedBy((string) self::getArrayItem($xmlCore->xpath('cp:lastModifiedBy')));
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            $this->docProps->setCreated((string) self::getArrayItem($xmlCore->xpath('dcterms:created'))); //! respect xsi:type
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            $this->docProps->setModified((string) self::getArrayItem($xmlCore->xpath('dcterms:modified'))); //! respect xsi:type
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            $this->docProps->setTitle((string) self::getArrayItem($xmlCore->xpath('dc:title')));
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            $this->docProps->setDescription((string) self::getArrayItem($xmlCore->xpath('dc:description')));
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            $this->docProps->setSubject((string) self::getArrayItem($xmlCore->xpath('dc:subject')));
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            $this->docProps->setKeywords((string) self::getArrayItem($xmlCore->xpath('cp:keywords')));
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            $this->docProps->setCategory((string) self::getArrayItem($xmlCore->xpath('cp:category')));
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        }
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    }
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    public function readExtendedProperties(string $propertyData): void
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    {
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        $xmlCore = $this->extractPropertyData($propertyData);
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        if (is_object($xmlCore)) {
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            if (isset($xmlCore->Company)) {
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                $this->docProps->setCompany((string) $xmlCore->Company);
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            }
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            if (isset($xmlCore->Manager)) {
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                $this->docProps->setManager((string) $xmlCore->Manager);
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            }
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            if (isset($xmlCore->HyperlinkBase)) {
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                $this->docProps->setHyperlinkBase((string) $xmlCore->HyperlinkBase);
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            }
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        }
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    }
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    public function readCustomProperties(string $propertyData): void
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    {
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        $xmlCore = $this->extractPropertyData($propertyData);
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        if (is_object($xmlCore)) {
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            foreach ($xmlCore as $xmlProperty) {
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                /** @var SimpleXMLElement $xmlProperty */
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                $cellDataOfficeAttributes = $xmlProperty->attributes();
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                if (isset($cellDataOfficeAttributes['name'])) {
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                    $propertyName = (string) $cellDataOfficeAttributes['name'];
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                    $cellDataOfficeChildren = $xmlProperty->children('http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes');
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                    $attributeType = $cellDataOfficeChildren->getName();
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                    $attributeValue = (string) $cellDataOfficeChildren->{$attributeType};
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                    $attributeValue = DocumentProperties::convertProperty($attributeValue, $attributeType);
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                    $attributeType = DocumentProperties::convertPropertyType($attributeType);
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                    $this->docProps->setCustomProperty($propertyName, $attributeValue, $attributeType);
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                }
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            }
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        }
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    }
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    /**
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     * @param null|array|false $array
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     * @param mixed $key
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     */
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    private static function getArrayItem($array, $key = 0): ?SimpleXMLElement
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    {
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        return is_array($array) ? ($array[$key] ?? null) : null;
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    }
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}