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<?php

declare (strict_types=1);
namespace WPForms\Vendor\Square\Models;

use stdClass;
/**
 * Describes a `UpdateInvoice` request.
 */
class UpdateInvoiceRequest implements \JsonSerializable
{
    /**
     * @var Invoice
     */
    private $invoice;
    /**
     * @var array
     */
    private $idempotencyKey = [];
    /**
     * @var array
     */
    private $fieldsToClear = [];
    /**
     * @param Invoice $invoice
     */
    public function __construct(Invoice $invoice)
    {
        $this->invoice = $invoice;
    }
    /**
     * Returns Invoice.
     * Stores information about an invoice. You use the Invoices API to create and manage
     * invoices. For more information, see [Invoices API Overview](https://developer.squareup.
     * com/docs/invoices-api/overview).
     */
    public function getInvoice() : Invoice
    {
        return $this->invoice;
    }
    /**
     * Sets Invoice.
     * Stores information about an invoice. You use the Invoices API to create and manage
     * invoices. For more information, see [Invoices API Overview](https://developer.squareup.
     * com/docs/invoices-api/overview).
     *
     * @required
     * @maps invoice
     */
    public function setInvoice(Invoice $invoice) : void
    {
        $this->invoice = $invoice;
    }
    /**
     * Returns Idempotency Key.
     * A unique string that identifies the `UpdateInvoice` request. If you do not
     * provide `idempotency_key` (or provide an empty string as the value), the endpoint
     * treats each request as independent.
     *
     * For more information, see [Idempotency](https://developer.squareup.com/docs/build-basics/common-api-
     * patterns/idempotency).
     */
    public function getIdempotencyKey() : ?string
    {
        if (\count($this->idempotencyKey) == 0) {
            return null;
        }
        return $this->idempotencyKey['value'];
    }
    /**
     * Sets Idempotency Key.
     * A unique string that identifies the `UpdateInvoice` request. If you do not
     * provide `idempotency_key` (or provide an empty string as the value), the endpoint
     * treats each request as independent.
     *
     * For more information, see [Idempotency](https://developer.squareup.com/docs/build-basics/common-api-
     * patterns/idempotency).
     *
     * @maps idempotency_key
     */
    public function setIdempotencyKey(?string $idempotencyKey) : void
    {
        $this->idempotencyKey['value'] = $idempotencyKey;
    }
    /**
     * Unsets Idempotency Key.
     * A unique string that identifies the `UpdateInvoice` request. If you do not
     * provide `idempotency_key` (or provide an empty string as the value), the endpoint
     * treats each request as independent.
     *
     * For more information, see [Idempotency](https://developer.squareup.com/docs/build-basics/common-api-
     * patterns/idempotency).
     */
    public function unsetIdempotencyKey() : void
    {
        $this->idempotencyKey = [];
    }
    /**
     * Returns Fields to Clear.
     * The list of fields to clear. Although this field is currently supported, we
     * recommend using null values or the `remove` field when possible. For examples, see
     * [Update an Invoice](https://developer.squareup.com/docs/invoices-api/update-invoices).
     *
     * @return string[]|null
     */
    public function getFieldsToClear() : ?array
    {
        if (\count($this->fieldsToClear) == 0) {
            return null;
        }
        return $this->fieldsToClear['value'];
    }
    /**
     * Sets Fields to Clear.
     * The list of fields to clear. Although this field is currently supported, we
     * recommend using null values or the `remove` field when possible. For examples, see
     * [Update an Invoice](https://developer.squareup.com/docs/invoices-api/update-invoices).
     *
     * @maps fields_to_clear
     *
     * @param string[]|null $fieldsToClear
     */
    public function setFieldsToClear(?array $fieldsToClear) : void
    {
        $this->fieldsToClear['value'] = $fieldsToClear;
    }
    /**
     * Unsets Fields to Clear.
     * The list of fields to clear. Although this field is currently supported, we
     * recommend using null values or the `remove` field when possible. For examples, see
     * [Update an Invoice](https://developer.squareup.com/docs/invoices-api/update-invoices).
     */
    public function unsetFieldsToClear() : void
    {
        $this->fieldsToClear = [];
    }
    /**
     * Encode this object to JSON
     *
     * @param bool $asArrayWhenEmpty Whether to serialize this model as an array whenever no fields
     *        are set. (default: false)
     *
     * @return array|stdClass
     */
    #[\ReturnTypeWillChange]
    public function jsonSerialize(bool $asArrayWhenEmpty = \false)
    {
        $json = [];
        $json['invoice'] = $this->invoice;
        if (!empty($this->idempotencyKey)) {
            $json['idempotency_key'] = $this->idempotencyKey['value'];
        }
        if (!empty($this->fieldsToClear)) {
            $json['fields_to_clear'] = $this->fieldsToClear['value'];
        }
        $json = \array_filter($json, function ($val) {
            return $val !== null;
        });
        return !$asArrayWhenEmpty && empty($json) ? new stdClass() : $json;
    }
}