<?php

namespace Microsoft\Graph\Generated\Models;

use DateTime;
use Microsoft\Kiota\Abstractions\Serialization\AdditionalDataHolder;
use Microsoft\Kiota\Abstractions\Serialization\Parsable;
use Microsoft\Kiota\Abstractions\Serialization\ParseNode;
use Microsoft\Kiota\Abstractions\Serialization\SerializationWriter;
use Microsoft\Kiota\Abstractions\Store\BackedModel;
use Microsoft\Kiota\Abstractions\Store\BackingStore;
use Microsoft\Kiota\Abstractions\Store\BackingStoreFactorySingleton;

class EducationAssignmentGrade implements AdditionalDataHolder, BackedModel, Parsable 
{
    /**
     * @var BackingStore $backingStore Stores model information.
    */
    private BackingStore $backingStore;
    
    /**
     * Instantiates a new EducationAssignmentGrade and sets the default values.
    */
    public function __construct() {
        $this->backingStore = BackingStoreFactorySingleton::getInstance()->createBackingStore();
        $this->setAdditionalData([]);
    }

    /**
     * Creates a new instance of the appropriate class based on discriminator value
     * @param ParseNode $parseNode The parse node to use to read the discriminator value and create the object
     * @return EducationAssignmentGrade
    */
    public static function createFromDiscriminatorValue(ParseNode $parseNode): EducationAssignmentGrade {
        $mappingValueNode = $parseNode->getChildNode("@odata.type");
        if ($mappingValueNode !== null) {
            $mappingValue = $mappingValueNode->getStringValue();
            switch ($mappingValue) {
                case '#microsoft.graph.educationAssignmentPointsGrade': return new EducationAssignmentPointsGrade();
            }
        }
        return new EducationAssignmentGrade();
    }

    /**
     * Gets the AdditionalData property value. Stores additional data not described in the OpenAPI description found when deserializing. Can be used for serialization as well.
     * @return array<string, mixed>|null
    */
    public function getAdditionalData(): ?array {
        $val = $this->getBackingStore()->get('additionalData');
        if (is_null($val) || is_array($val)) {
            /** @var array<string, mixed>|null $val */
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'additionalData'");
    }

    /**
     * Gets the BackingStore property value. Stores model information.
     * @return BackingStore
    */
    public function getBackingStore(): BackingStore {
        return $this->backingStore;
    }

    /**
     * The deserialization information for the current model
     * @return array<string, callable(ParseNode): void>
    */
    public function getFieldDeserializers(): array {
        $o = $this;
        return  [
            'gradedBy' => fn(ParseNode $n) => $o->setGradedBy($n->getObjectValue([IdentitySet::class, 'createFromDiscriminatorValue'])),
            'gradedDateTime' => fn(ParseNode $n) => $o->setGradedDateTime($n->getDateTimeValue()),
            '@odata.type' => fn(ParseNode $n) => $o->setOdataType($n->getStringValue()),
        ];
    }

    /**
     * Gets the gradedBy property value. User who did the grading.
     * @return IdentitySet|null
    */
    public function getGradedBy(): ?IdentitySet {
        $val = $this->getBackingStore()->get('gradedBy');
        if (is_null($val) || $val instanceof IdentitySet) {
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'gradedBy'");
    }

    /**
     * Gets the gradedDateTime property value. Moment in time when the grade was applied to this submission object. The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z
     * @return DateTime|null
    */
    public function getGradedDateTime(): ?DateTime {
        $val = $this->getBackingStore()->get('gradedDateTime');
        if (is_null($val) || $val instanceof DateTime) {
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'gradedDateTime'");
    }

    /**
     * Gets the @odata.type property value. The OdataType property
     * @return string|null
    */
    public function getOdataType(): ?string {
        $val = $this->getBackingStore()->get('odataType');
        if (is_null($val) || is_string($val)) {
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'odataType'");
    }

    /**
     * Serializes information the current object
     * @param SerializationWriter $writer Serialization writer to use to serialize this model
    */
    public function serialize(SerializationWriter $writer): void {
        $writer->writeObjectValue('gradedBy', $this->getGradedBy());
        $writer->writeDateTimeValue('gradedDateTime', $this->getGradedDateTime());
        $writer->writeStringValue('@odata.type', $this->getOdataType());
        $writer->writeAdditionalData($this->getAdditionalData());
    }

    /**
     * Sets the AdditionalData property value. Stores additional data not described in the OpenAPI description found when deserializing. Can be used for serialization as well.
     * @param array<string,mixed> $value Value to set for the AdditionalData property.
    */
    public function setAdditionalData(?array $value): void {
        $this->getBackingStore()->set('additionalData', $value);
    }

    /**
     * Sets the BackingStore property value. Stores model information.
     * @param BackingStore $value Value to set for the BackingStore property.
    */
    public function setBackingStore(BackingStore $value): void {
        $this->backingStore = $value;
    }

    /**
     * Sets the gradedBy property value. User who did the grading.
     * @param IdentitySet|null $value Value to set for the gradedBy property.
    */
    public function setGradedBy(?IdentitySet $value): void {
        $this->getBackingStore()->set('gradedBy', $value);
    }

    /**
     * Sets the gradedDateTime property value. Moment in time when the grade was applied to this submission object. The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z
     * @param DateTime|null $value Value to set for the gradedDateTime property.
    */
    public function setGradedDateTime(?DateTime $value): void {
        $this->getBackingStore()->set('gradedDateTime', $value);
    }

    /**
     * Sets the @odata.type property value. The OdataType property
     * @param string|null $value Value to set for the @odata.type property.
    */
    public function setOdataType(?string $value): void {
        $this->getBackingStore()->set('odataType', $value);
    }

}