<?php

namespace Microsoft\Graph\Generated\Models;

use DateInterval;
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 TermsExpiration implements AdditionalDataHolder, BackedModel, Parsable 
{
    /**
     * @var BackingStore $backingStore Stores model information.
    */
    private BackingStore $backingStore;
    
    /**
     * Instantiates a new TermsExpiration 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 TermsExpiration
    */
    public static function createFromDiscriminatorValue(ParseNode $parseNode): TermsExpiration {
        return new TermsExpiration();
    }

    /**
     * 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  [
            'frequency' => fn(ParseNode $n) => $o->setFrequency($n->getDateIntervalValue()),
            '@odata.type' => fn(ParseNode $n) => $o->setOdataType($n->getStringValue()),
            'startDateTime' => fn(ParseNode $n) => $o->setStartDateTime($n->getDateTimeValue()),
        ];
    }

    /**
     * Gets the frequency property value. Represents the frequency at which the terms will expire, after its first expiration as set in startDateTime. The value is represented in ISO 8601 format for durations. For example, PT1M represents a time period of one month.
     * @return DateInterval|null
    */
    public function getFrequency(): ?DateInterval {
        $val = $this->getBackingStore()->get('frequency');
        if (is_null($val) || $val instanceof DateInterval) {
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'frequency'");
    }

    /**
     * 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'");
    }

    /**
     * Gets the startDateTime property value. The DateTime when the agreement is set to expire for all users. 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 getStartDateTime(): ?DateTime {
        $val = $this->getBackingStore()->get('startDateTime');
        if (is_null($val) || $val instanceof DateTime) {
            return $val;
        }
        throw new \UnexpectedValueException("Invalid type found in backing store for 'startDateTime'");
    }

    /**
     * Serializes information the current object
     * @param SerializationWriter $writer Serialization writer to use to serialize this model
    */
    public function serialize(SerializationWriter $writer): void {
        $writer->writeDateIntervalValue('frequency', $this->getFrequency());
        $writer->writeStringValue('@odata.type', $this->getOdataType());
        $writer->writeDateTimeValue('startDateTime', $this->getStartDateTime());
        $writer->writeAdditionalData($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 frequency property value. Represents the frequency at which the terms will expire, after its first expiration as set in startDateTime. The value is represented in ISO 8601 format for durations. For example, PT1M represents a time period of one month.
     * @param DateInterval|null $value Value to set for the frequency property.
    */
    public function setFrequency(?DateInterval $value): void {
        $this->getBackingStore()->set('frequency', $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);
    }

    /**
     * Sets the startDateTime property value. The DateTime when the agreement is set to expire for all users. 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 startDateTime property.
    */
    public function setStartDateTime(?DateTime $value): void {
        $this->getBackingStore()->set('startDateTime', $value);
    }

}