<?php
/**
 * PaymentRequestApi
 * PHP version 7.4
 *
 * @category Class
 * @package  Xendit
 */

/**
 * Payment Requests
 *
 * The version of the OpenAPI document: 1.70.0
 */

/**
 * NOTE: This class is auto generated
 * Do not edit the class manually.
 */

namespace Xendit\PaymentRequest;

use GuzzleHttp\Client;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\ConnectException;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\MultipartStream;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\RequestOptions;
use Xendit\Model;
use Xendit\XenditSdkException;
use Xendit\Configuration;
use Xendit\HeaderSelector;
use Xendit\ObjectSerializer;

/**
 * PaymentRequestApi Class Doc Comment
 *
 * @category Class
 * @package  Xendit
 */
class PaymentRequestApi
{
    /**
     * @var ClientInterface
     */
    protected $client;

    /**
     * @var Configuration
     */
    protected $config;

    /**
     * @var HeaderSelector
     */
    protected $headerSelector;

    /**
     * @var int Host index
     */
    protected $hostIndex;

    /** @var string[] $contentTypes **/
    public const contentTypes = [
        'createPaymentRequest' => [
            'application/json',
        ],
        'getPaymentRequestByID' => [
            'application/json',
        ],
        'getPaymentRequestCaptures' => [
            'application/json',
        ],
        'getAllPaymentRequests' => [
            'application/json',
        ],
        'capturePaymentRequest' => [
            'application/json',
        ],
        'authorizePaymentRequest' => [
            'application/json',
        ],
        'resendPaymentRequestAuth' => [
            'application/json',
        ],
        'simulatePaymentRequestPayment' => [
            'application/json',
        ],
    ];

/**
     * @param ClientInterface $client
     * @param Configuration   $config
     * @param HeaderSelector  $selector
     * @param int             $hostIndex (Optional) host index to select the list of hosts if defined in the OpenAPI spec
     */
    public function __construct(
        ClientInterface $client = null,
        Configuration $config = null,
        HeaderSelector $selector = null,
        $hostIndex = 0
    ) {
        $this->client = $client ?: new Client();
        $this->config = $config ?: Configuration::getDefaultConfiguration();
        $this->headerSelector = $selector ?: new HeaderSelector();
        $this->hostIndex = $hostIndex;
    }

    public function setApiKey($apiKey)
    {
        $this->config->setApiKey($apiKey);
        return $this;
    }

    /**
     * Set the host index
     *
     * @param int $hostIndex Host index (required)
     */
    public function setHostIndex($hostIndex): void
    {
        $this->hostIndex = $hostIndex;
    }

    /**
     * Get the host index
     *
     * @return int Host index
     */
    public function getHostIndex()
    {
        return $this->hostIndex;
    }

    /**
     * @return Configuration
     */
    public function getConfig()
    {
        return $this->config;
    }

    /**
     * Operation createPaymentRequest
     *
     * Create Payment Request
     *
     * @param  string $idempotency_key idempotency_key (optional)
     * @param  string $for_user_id for_user_id (optional)
     * @param  string $with_split_rule with_split_rule (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestParameters $payment_request_parameters payment_request_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['createPaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentRequest
     */
    public function createPaymentRequest($idempotency_key = null, $for_user_id = null, $with_split_rule = null, $payment_request_parameters = null, string $contentType = self::contentTypes['createPaymentRequest'][0])
    {
        list($response) = $this->createPaymentRequestWithHttpInfo($idempotency_key, $for_user_id, $with_split_rule, $payment_request_parameters, $contentType);
        return $response;
    }

    /**
     * Operation createPaymentRequestWithHttpInfo
     *
     * Create Payment Request
     *
     * @param  string $idempotency_key (optional)
     * @param  string $for_user_id (optional)
     * @param  string $with_split_rule (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestParameters $payment_request_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['createPaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentRequest, HTTP status code, HTTP response headers (array of strings)
     */
    public function createPaymentRequestWithHttpInfo($idempotency_key = null, $for_user_id = null, $with_split_rule = null, $payment_request_parameters = null, string $contentType = self::contentTypes['createPaymentRequest'][0])
    {
        $request = $this->createPaymentRequestRequest($idempotency_key, $for_user_id, $with_split_rule, $payment_request_parameters, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "createPaymentRequestRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "createPaymentRequestRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "createPaymentRequestRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation createPaymentRequestAsync
     *
     * Create Payment Request
     *
     * @param  string $idempotency_key (optional)
     * @param  string $for_user_id (optional)
     * @param  string $with_split_rule (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestParameters $payment_request_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['createPaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createPaymentRequestAsync($idempotency_key = null, $for_user_id = null, $with_split_rule = null, $payment_request_parameters = null, string $contentType = self::contentTypes['createPaymentRequest'][0])
    {
        return $this->createPaymentRequestAsyncWithHttpInfo($idempotency_key, $for_user_id, $with_split_rule, $payment_request_parameters, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation createPaymentRequestAsyncWithHttpInfo
     *
     * Create Payment Request
     *
     * @param  string $idempotency_key (optional)
     * @param  string $for_user_id (optional)
     * @param  string $with_split_rule (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestParameters $payment_request_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['createPaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createPaymentRequestAsyncWithHttpInfo($idempotency_key = null, $for_user_id = null, $with_split_rule = null, $payment_request_parameters = null, string $contentType = self::contentTypes['createPaymentRequest'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        $request = $this->createPaymentRequestRequest($idempotency_key, $for_user_id, $with_split_rule, $payment_request_parameters, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "createPaymentRequestRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'createPaymentRequest'
     *
     * @param  string $idempotency_key (optional)
     * @param  string $for_user_id (optional)
     * @param  string $with_split_rule (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestParameters $payment_request_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['createPaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function createPaymentRequestRequest($idempotency_key = null, $for_user_id = null, $with_split_rule = null, $payment_request_parameters = null, string $contentType = self::contentTypes['createPaymentRequest'][0])
    {






        $resourcePath = '/payment_requests';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // header param: idempotency-key
        if ($idempotency_key !== null) {
            $headerParams['idempotency-key'] = ObjectSerializer::toHeaderValue($idempotency_key);
        }
        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // header param: with-split-rule
        if ($with_split_rule !== null) {
            $headerParams['with-split-rule'] = ObjectSerializer::toHeaderValue($with_split_rule);
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (isset($payment_request_parameters)) {
            if (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the body
                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($payment_request_parameters));
            } else {
                $httpBody = $payment_request_parameters;
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'POST',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getPaymentRequestByID
     *
     * Get payment request by ID
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $for_user_id for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestByID'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentRequest
     */
    public function getPaymentRequestByID($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['getPaymentRequestByID'][0])
    {
        list($response) = $this->getPaymentRequestByIDWithHttpInfo($payment_request_id, $for_user_id, $contentType);
        return $response;
    }

    /**
     * Operation getPaymentRequestByIDWithHttpInfo
     *
     * Get payment request by ID
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestByID'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentRequest, HTTP status code, HTTP response headers (array of strings)
     */
    public function getPaymentRequestByIDWithHttpInfo($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['getPaymentRequestByID'][0])
    {
        $request = $this->getPaymentRequestByIDRequest($payment_request_id, $for_user_id, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestByIDRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestByIDRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "getPaymentRequestByIDRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation getPaymentRequestByIDAsync
     *
     * Get payment request by ID
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestByID'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getPaymentRequestByIDAsync($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['getPaymentRequestByID'][0])
    {
        return $this->getPaymentRequestByIDAsyncWithHttpInfo($payment_request_id, $for_user_id, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getPaymentRequestByIDAsyncWithHttpInfo
     *
     * Get payment request by ID
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestByID'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getPaymentRequestByIDAsyncWithHttpInfo($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['getPaymentRequestByID'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        $request = $this->getPaymentRequestByIDRequest($payment_request_id, $for_user_id, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestByIDRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'getPaymentRequestByID'
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestByID'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function getPaymentRequestByIDRequest($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['getPaymentRequestByID'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling getPaymentRequestByID'
            );
        }



        $resourcePath = '/payment_requests/{paymentRequestId}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'GET',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getPaymentRequestCaptures
     *
     * Get Payment Request Capture
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $for_user_id for_user_id (optional)
     * @param  int $limit limit (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestCaptures'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\CaptureListResponse
     */
    public function getPaymentRequestCaptures($payment_request_id, $for_user_id = null, $limit = null, string $contentType = self::contentTypes['getPaymentRequestCaptures'][0])
    {
        list($response) = $this->getPaymentRequestCapturesWithHttpInfo($payment_request_id, $for_user_id, $limit, $contentType);
        return $response;
    }

    /**
     * Operation getPaymentRequestCapturesWithHttpInfo
     *
     * Get Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  int $limit (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestCaptures'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\CaptureListResponse, HTTP status code, HTTP response headers (array of strings)
     */
    public function getPaymentRequestCapturesWithHttpInfo($payment_request_id, $for_user_id = null, $limit = null, string $contentType = self::contentTypes['getPaymentRequestCaptures'][0])
    {
        $request = $this->getPaymentRequestCapturesRequest($payment_request_id, $for_user_id, $limit, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestCapturesRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestCapturesRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "getPaymentRequestCapturesRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\CaptureListResponse';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation getPaymentRequestCapturesAsync
     *
     * Get Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  int $limit (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestCaptures'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getPaymentRequestCapturesAsync($payment_request_id, $for_user_id = null, $limit = null, string $contentType = self::contentTypes['getPaymentRequestCaptures'][0])
    {
        return $this->getPaymentRequestCapturesAsyncWithHttpInfo($payment_request_id, $for_user_id, $limit, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getPaymentRequestCapturesAsyncWithHttpInfo
     *
     * Get Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  int $limit (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestCaptures'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getPaymentRequestCapturesAsyncWithHttpInfo($payment_request_id, $for_user_id = null, $limit = null, string $contentType = self::contentTypes['getPaymentRequestCaptures'][0])
    {
        $returnType = '\Xendit\PaymentRequest\CaptureListResponse';
        $request = $this->getPaymentRequestCapturesRequest($payment_request_id, $for_user_id, $limit, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getPaymentRequestCapturesRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'getPaymentRequestCaptures'
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  int $limit (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPaymentRequestCaptures'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function getPaymentRequestCapturesRequest($payment_request_id, $for_user_id = null, $limit = null, string $contentType = self::contentTypes['getPaymentRequestCaptures'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling getPaymentRequestCaptures'
            );
        }




        $resourcePath = '/payment_requests/{paymentRequestId}/captures';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $limit,
            'limit', // param base name
            'integer', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);

        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'GET',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getAllPaymentRequests
     *
     * Get all payment requests by filter
     *
     * @param  string $for_user_id for_user_id (optional)
     * @param  string[] $reference_id reference_id (optional)
     * @param  string[] $id id (optional)
     * @param  string[] $customer_id customer_id (optional)
     * @param  int $limit limit (optional)
     * @param  string $before_id before_id (optional)
     * @param  string $after_id after_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getAllPaymentRequests'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentRequestListResponse
     */
    public function getAllPaymentRequests($for_user_id = null, $reference_id = null, $id = null, $customer_id = null, $limit = null, $before_id = null, $after_id = null, string $contentType = self::contentTypes['getAllPaymentRequests'][0])
    {
        list($response) = $this->getAllPaymentRequestsWithHttpInfo($for_user_id, $reference_id, $id, $customer_id, $limit, $before_id, $after_id, $contentType);
        return $response;
    }

    /**
     * Operation getAllPaymentRequestsWithHttpInfo
     *
     * Get all payment requests by filter
     *
     * @param  string $for_user_id (optional)
     * @param  string[] $reference_id (optional)
     * @param  string[] $id (optional)
     * @param  string[] $customer_id (optional)
     * @param  int $limit (optional)
     * @param  string $before_id (optional)
     * @param  string $after_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getAllPaymentRequests'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentRequestListResponse, HTTP status code, HTTP response headers (array of strings)
     */
    public function getAllPaymentRequestsWithHttpInfo($for_user_id = null, $reference_id = null, $id = null, $customer_id = null, $limit = null, $before_id = null, $after_id = null, string $contentType = self::contentTypes['getAllPaymentRequests'][0])
    {
        $request = $this->getAllPaymentRequestsRequest($for_user_id, $reference_id, $id, $customer_id, $limit, $before_id, $after_id, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getAllPaymentRequestsRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getAllPaymentRequestsRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "getAllPaymentRequestsRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentRequestListResponse';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation getAllPaymentRequestsAsync
     *
     * Get all payment requests by filter
     *
     * @param  string $for_user_id (optional)
     * @param  string[] $reference_id (optional)
     * @param  string[] $id (optional)
     * @param  string[] $customer_id (optional)
     * @param  int $limit (optional)
     * @param  string $before_id (optional)
     * @param  string $after_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getAllPaymentRequests'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getAllPaymentRequestsAsync($for_user_id = null, $reference_id = null, $id = null, $customer_id = null, $limit = null, $before_id = null, $after_id = null, string $contentType = self::contentTypes['getAllPaymentRequests'][0])
    {
        return $this->getAllPaymentRequestsAsyncWithHttpInfo($for_user_id, $reference_id, $id, $customer_id, $limit, $before_id, $after_id, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getAllPaymentRequestsAsyncWithHttpInfo
     *
     * Get all payment requests by filter
     *
     * @param  string $for_user_id (optional)
     * @param  string[] $reference_id (optional)
     * @param  string[] $id (optional)
     * @param  string[] $customer_id (optional)
     * @param  int $limit (optional)
     * @param  string $before_id (optional)
     * @param  string $after_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getAllPaymentRequests'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getAllPaymentRequestsAsyncWithHttpInfo($for_user_id = null, $reference_id = null, $id = null, $customer_id = null, $limit = null, $before_id = null, $after_id = null, string $contentType = self::contentTypes['getAllPaymentRequests'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentRequestListResponse';
        $request = $this->getAllPaymentRequestsRequest($for_user_id, $reference_id, $id, $customer_id, $limit, $before_id, $after_id, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "getAllPaymentRequestsRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'getAllPaymentRequests'
     *
     * @param  string $for_user_id (optional)
     * @param  string[] $reference_id (optional)
     * @param  string[] $id (optional)
     * @param  string[] $customer_id (optional)
     * @param  int $limit (optional)
     * @param  string $before_id (optional)
     * @param  string $after_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getAllPaymentRequests'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function getAllPaymentRequestsRequest($for_user_id = null, $reference_id = null, $id = null, $customer_id = null, $limit = null, $before_id = null, $after_id = null, string $contentType = self::contentTypes['getAllPaymentRequests'][0])
    {









        $resourcePath = '/payment_requests';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $reference_id,
            'reference_id', // param base name
            'array', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);
        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $id,
            'id', // param base name
            'array', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);
        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $customer_id,
            'customer_id', // param base name
            'array', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);
        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $limit,
            'limit', // param base name
            'integer', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);
        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $before_id,
            'before_id', // param base name
            'string', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);
        // query params
        $queryParams = array_merge($queryParams, ObjectSerializer::toQueryValue(
            $after_id,
            'after_id', // param base name
            'string', // openApiType
            'form', // style
            true, // explode
            false // required
        ) ?? []);

        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'GET',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation capturePaymentRequest
     *
     * Payment Request Capture
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $for_user_id for_user_id (optional)
     * @param  \Xendit\PaymentRequest\CaptureParameters $capture_parameters capture_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['capturePaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\Capture
     */
    public function capturePaymentRequest($payment_request_id, $for_user_id = null, $capture_parameters = null, string $contentType = self::contentTypes['capturePaymentRequest'][0])
    {
        list($response) = $this->capturePaymentRequestWithHttpInfo($payment_request_id, $for_user_id, $capture_parameters, $contentType);
        return $response;
    }

    /**
     * Operation capturePaymentRequestWithHttpInfo
     *
     * Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\CaptureParameters $capture_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['capturePaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\Capture, HTTP status code, HTTP response headers (array of strings)
     */
    public function capturePaymentRequestWithHttpInfo($payment_request_id, $for_user_id = null, $capture_parameters = null, string $contentType = self::contentTypes['capturePaymentRequest'][0])
    {
        $request = $this->capturePaymentRequestRequest($payment_request_id, $for_user_id, $capture_parameters, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "capturePaymentRequestRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "capturePaymentRequestRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "capturePaymentRequestRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\Capture';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation capturePaymentRequestAsync
     *
     * Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\CaptureParameters $capture_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['capturePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function capturePaymentRequestAsync($payment_request_id, $for_user_id = null, $capture_parameters = null, string $contentType = self::contentTypes['capturePaymentRequest'][0])
    {
        return $this->capturePaymentRequestAsyncWithHttpInfo($payment_request_id, $for_user_id, $capture_parameters, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation capturePaymentRequestAsyncWithHttpInfo
     *
     * Payment Request Capture
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\CaptureParameters $capture_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['capturePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function capturePaymentRequestAsyncWithHttpInfo($payment_request_id, $for_user_id = null, $capture_parameters = null, string $contentType = self::contentTypes['capturePaymentRequest'][0])
    {
        $returnType = '\Xendit\PaymentRequest\Capture';
        $request = $this->capturePaymentRequestRequest($payment_request_id, $for_user_id, $capture_parameters, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "capturePaymentRequestRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'capturePaymentRequest'
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\CaptureParameters $capture_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['capturePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function capturePaymentRequestRequest($payment_request_id, $for_user_id = null, $capture_parameters = null, string $contentType = self::contentTypes['capturePaymentRequest'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling capturePaymentRequest'
            );
        }




        $resourcePath = '/payment_requests/{paymentRequestId}/captures';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (isset($capture_parameters)) {
            if (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the body
                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($capture_parameters));
            } else {
                $httpBody = $capture_parameters;
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'POST',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation authorizePaymentRequest
     *
     * Payment Request Authorize
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $for_user_id for_user_id (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestAuthParameters $payment_request_auth_parameters payment_request_auth_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['authorizePaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentRequest
     */
    public function authorizePaymentRequest($payment_request_id, $for_user_id = null, $payment_request_auth_parameters = null, string $contentType = self::contentTypes['authorizePaymentRequest'][0])
    {
        list($response) = $this->authorizePaymentRequestWithHttpInfo($payment_request_id, $for_user_id, $payment_request_auth_parameters, $contentType);
        return $response;
    }

    /**
     * Operation authorizePaymentRequestWithHttpInfo
     *
     * Payment Request Authorize
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestAuthParameters $payment_request_auth_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['authorizePaymentRequest'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentRequest, HTTP status code, HTTP response headers (array of strings)
     */
    public function authorizePaymentRequestWithHttpInfo($payment_request_id, $for_user_id = null, $payment_request_auth_parameters = null, string $contentType = self::contentTypes['authorizePaymentRequest'][0])
    {
        $request = $this->authorizePaymentRequestRequest($payment_request_id, $for_user_id, $payment_request_auth_parameters, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "authorizePaymentRequestRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "authorizePaymentRequestRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "authorizePaymentRequestRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation authorizePaymentRequestAsync
     *
     * Payment Request Authorize
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestAuthParameters $payment_request_auth_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['authorizePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function authorizePaymentRequestAsync($payment_request_id, $for_user_id = null, $payment_request_auth_parameters = null, string $contentType = self::contentTypes['authorizePaymentRequest'][0])
    {
        return $this->authorizePaymentRequestAsyncWithHttpInfo($payment_request_id, $for_user_id, $payment_request_auth_parameters, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation authorizePaymentRequestAsyncWithHttpInfo
     *
     * Payment Request Authorize
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestAuthParameters $payment_request_auth_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['authorizePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function authorizePaymentRequestAsyncWithHttpInfo($payment_request_id, $for_user_id = null, $payment_request_auth_parameters = null, string $contentType = self::contentTypes['authorizePaymentRequest'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        $request = $this->authorizePaymentRequestRequest($payment_request_id, $for_user_id, $payment_request_auth_parameters, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "authorizePaymentRequestRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'authorizePaymentRequest'
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  \Xendit\PaymentRequest\PaymentRequestAuthParameters $payment_request_auth_parameters (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['authorizePaymentRequest'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function authorizePaymentRequestRequest($payment_request_id, $for_user_id = null, $payment_request_auth_parameters = null, string $contentType = self::contentTypes['authorizePaymentRequest'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling authorizePaymentRequest'
            );
        }




        $resourcePath = '/payment_requests/{paymentRequestId}/auth';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (isset($payment_request_auth_parameters)) {
            if (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the body
                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($payment_request_auth_parameters));
            } else {
                $httpBody = $payment_request_auth_parameters;
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'POST',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation resendPaymentRequestAuth
     *
     * Payment Request Resend Auth
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $for_user_id for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['resendPaymentRequestAuth'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentRequest
     */
    public function resendPaymentRequestAuth($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['resendPaymentRequestAuth'][0])
    {
        list($response) = $this->resendPaymentRequestAuthWithHttpInfo($payment_request_id, $for_user_id, $contentType);
        return $response;
    }

    /**
     * Operation resendPaymentRequestAuthWithHttpInfo
     *
     * Payment Request Resend Auth
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['resendPaymentRequestAuth'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentRequest, HTTP status code, HTTP response headers (array of strings)
     */
    public function resendPaymentRequestAuthWithHttpInfo($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['resendPaymentRequestAuth'][0])
    {
        $request = $this->resendPaymentRequestAuthRequest($payment_request_id, $for_user_id, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "resendPaymentRequestAuthRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "resendPaymentRequestAuthRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "resendPaymentRequestAuthRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation resendPaymentRequestAuthAsync
     *
     * Payment Request Resend Auth
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['resendPaymentRequestAuth'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function resendPaymentRequestAuthAsync($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['resendPaymentRequestAuth'][0])
    {
        return $this->resendPaymentRequestAuthAsyncWithHttpInfo($payment_request_id, $for_user_id, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation resendPaymentRequestAuthAsyncWithHttpInfo
     *
     * Payment Request Resend Auth
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['resendPaymentRequestAuth'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function resendPaymentRequestAuthAsyncWithHttpInfo($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['resendPaymentRequestAuth'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentRequest';
        $request = $this->resendPaymentRequestAuthRequest($payment_request_id, $for_user_id, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "resendPaymentRequestAuthRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'resendPaymentRequestAuth'
     *
     * @param  string $payment_request_id (required)
     * @param  string $for_user_id (optional)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['resendPaymentRequestAuth'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function resendPaymentRequestAuthRequest($payment_request_id, $for_user_id = null, string $contentType = self::contentTypes['resendPaymentRequestAuth'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling resendPaymentRequestAuth'
            );
        }



        $resourcePath = '/payment_requests/{paymentRequestId}/auth/resend';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // header param: for-user-id
        if ($for_user_id !== null) {
            $headerParams['for-user-id'] = ObjectSerializer::toHeaderValue($for_user_id);
        }
        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'POST',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation simulatePaymentRequestPayment
     *
     * Payment Request Simulate Payment
     *
     * @param  string $payment_request_id payment_request_id (required)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['simulatePaymentRequestPayment'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Xendit\PaymentRequest\PaymentSimulation
     */
    public function simulatePaymentRequestPayment($payment_request_id, string $contentType = self::contentTypes['simulatePaymentRequestPayment'][0])
    {
        list($response) = $this->simulatePaymentRequestPaymentWithHttpInfo($payment_request_id, $contentType);
        return $response;
    }

    /**
     * Operation simulatePaymentRequestPaymentWithHttpInfo
     *
     * Payment Request Simulate Payment
     *
     * @param  string $payment_request_id (required)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['simulatePaymentRequestPayment'] to see the possible values for this operation
     *
     * @throws \Xendit\XenditSdkException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Xendit\PaymentRequest\PaymentSimulation, HTTP status code, HTTP response headers (array of strings)
     */
    public function simulatePaymentRequestPaymentWithHttpInfo($payment_request_id, string $contentType = self::contentTypes['simulatePaymentRequestPayment'][0])
    {
        $request = $this->simulatePaymentRequestPaymentRequest($payment_request_id, $contentType);

        $options = $this->createHttpClientOption();
        try {
            $response = $this->client->send($request, $options);
        } catch (RequestException $e) {
            throw new XenditSdkException(
                $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "simulatePaymentRequestPaymentRequest")
            );
        } catch (ConnectException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "simulatePaymentRequestPaymentRequest")
            );
        }  catch (GuzzleException $e) {
            throw new XenditSdkException(
                null,
                (string) $e->getCode(),
                $e->getMessage() ? $e->getMessage() : sprintf('Error instantiating client for API (%s)', "simulatePaymentRequestPaymentRequest")
            );
        }

        $statusCode = $response->getStatusCode();

        if ($statusCode < 200 || $statusCode > 299) {
            $errBodyContent = $response->getBody() ? json_decode((string) $response->getBody()) : null;

            throw new XenditSdkException(
                $errBodyContent,
                (string) $statusCode,
                $response->getReasonPhrase()
            );
        }
        $returnType = '\Xendit\PaymentRequest\PaymentSimulation';
        if ($returnType === '\SplFileObject') {
            $content = $response->getBody(); //stream goes to serializer
        } else {
            $content = (string) $response->getBody();
            if ($returnType !== 'string') {
                $content = json_decode($content);
            }
        }

        return [
            ObjectSerializer::deserialize($content, $returnType, []),
            $response->getStatusCode(),
            $response->getHeaders()
        ];
    }

    /**
     * Operation simulatePaymentRequestPaymentAsync
     *
     * Payment Request Simulate Payment
     *
     * @param  string $payment_request_id (required)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['simulatePaymentRequestPayment'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function simulatePaymentRequestPaymentAsync($payment_request_id, string $contentType = self::contentTypes['simulatePaymentRequestPayment'][0])
    {
        return $this->simulatePaymentRequestPaymentAsyncWithHttpInfo($payment_request_id, $contentType)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation simulatePaymentRequestPaymentAsyncWithHttpInfo
     *
     * Payment Request Simulate Payment
     *
     * @param  string $payment_request_id (required)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['simulatePaymentRequestPayment'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function simulatePaymentRequestPaymentAsyncWithHttpInfo($payment_request_id, string $contentType = self::contentTypes['simulatePaymentRequestPayment'][0])
    {
        $returnType = '\Xendit\PaymentRequest\PaymentSimulation';
        $request = $this->simulatePaymentRequestPaymentRequest($payment_request_id, $contentType);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    if ($returnType === '\SplFileObject') {
                        $content = $response->getBody(); //stream goes to serializer
                    } else {
                        $content = (string) $response->getBody();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($e) {
                    throw new XenditSdkException(
                        $e->getResponse() && $e->getResponse()->getBody() ? json_decode((string) $e->getResponse()->getBody()) : null,
                        (string) $e->getCode(),
                        $e->getMessage() ? $e->getMessage() : sprintf('Error connecting to the API (%s)', "simulatePaymentRequestPaymentRequest")
                    );
                }
            );
    }

    /**
     * Create request for operation 'simulatePaymentRequestPayment'
     *
     * @param  string $payment_request_id (required)
     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['simulatePaymentRequestPayment'] to see the possible values for this operation
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    public function simulatePaymentRequestPaymentRequest($payment_request_id, string $contentType = self::contentTypes['simulatePaymentRequestPayment'][0])
    {

        // verify the required parameter 'payment_request_id' is set
        if ($payment_request_id === null || (is_array($payment_request_id) && count($payment_request_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $payment_request_id when calling simulatePaymentRequestPayment'
            );
        }


        $resourcePath = '/payment_requests/{paymentRequestId}/payments/simulate';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // path params
        if ($payment_request_id !== null) {
            $resourcePath = str_replace(
                '{' . 'paymentRequestId' . '}',
                ObjectSerializer::toPathValue($payment_request_id),
                $resourcePath
            );
        }


        $headers = $this->headerSelector->selectHeaders(
            ['application/json', ],
            $contentType,
            $multipart
        );

        // for model (json/xml)
        if (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $formParamValueItems = is_array($formParamValue) ? $formParamValue : [$formParamValue];
                    foreach ($formParamValueItems as $formParamValueItem) {
                        $multipartContents[] = [
                            'name' => $formParamName,
                            'contents' => $formParamValueItem
                        ];
                    }
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
                # if Content-Type contains "application/json", json_encode the form parameters
                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
            } else {
                // for HTTP post (form)
                $httpBody = ObjectSerializer::buildQuery($formParams);
            }
        }

        // this endpoint requires HTTP basic authentication
        $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getApiKey() . ":");

        $defaultHeaders = [];
        
        // Xendit's custom headers
        $defaultHeaders['xendit-lib'] = 'php';
        $defaultHeaders['xendit-lib-ver'] = '6.4.0';

        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $operationHost = $this->config->getHost();
        $query = ObjectSerializer::buildQuery($queryParams);
        return new Request(
            'POST',
            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Create http client option
     *
     * @throws \RuntimeException on file opening failure
     * @return array of http client options
     */
    protected function createHttpClientOption()
    {
        $options = [];
        if ($this->config->getDebug()) {
            $options[RequestOptions::DEBUG] = fopen($this->config->getDebugFile(), 'a');
            if (!$options[RequestOptions::DEBUG]) {
                throw new \RuntimeException('Failed to open the debug file: ' . $this->config->getDebugFile());
            }
        }

        return $options;
    }
}
