<?php
/**
 * TransactionalWhatsAppApi
 * PHP version 5
 *
 * @category Class
 * @package  SendinBlue\Client
 * @author   Swagger Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */

/**
 * SendinBlue API
 *
 * SendinBlue provide a RESTFul API that can be used with any languages. With this API, you will be able to :   - Manage your campaigns and get the statistics   - Manage your contacts   - Send transactional Emails and SMS   - and much more...  You can download our wrappers at https://github.com/orgs/sendinblue  **Possible responses**   | Code | Message |   | :-------------: | ------------- |   | 200  | OK. Successful Request  |   | 201  | OK. Successful Creation |   | 202  | OK. Request accepted |   | 204  | OK. Successful Update/Deletion  |   | 400  | Error. Bad Request  |   | 401  | Error. Authentication Needed  |   | 402  | Error. Not enough credit, plan upgrade needed  |   | 403  | Error. Permission denied  |   | 404  | Error. Object does not exist |   | 405  | Error. Method not allowed  |   | 406  | Error. Not Acceptable  |
 *
 * OpenAPI spec version: 3.0.0
 * Contact: contact@sendinblue.com
 * Generated by: https://github.com/swagger-api/swagger-codegen.git
 * Swagger Codegen version: 2.4.29
 */

/**
 * NOTE: This class is auto generated by the swagger code generator program.
 * https://github.com/swagger-api/swagger-codegen
 * Do not edit the class manually.
 */

namespace SendinBlue\Client\Api;

use GuzzleHttp\Client;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\MultipartStream;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\RequestOptions;
use SendinBlue\Client\ApiException;
use SendinBlue\Client\Configuration;
use SendinBlue\Client\HeaderSelector;
use SendinBlue\Client\ObjectSerializer;

/**
 * TransactionalWhatsAppApi Class Doc Comment
 *
 * @category Class
 * @package  SendinBlue\Client
 * @author   Swagger Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */
class TransactionalWhatsAppApi
{
    /**
     * @var ClientInterface
     */
    protected $client;

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

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

    /**
     * @param ClientInterface $client
     * @param Configuration   $config
     * @param HeaderSelector  $selector
     */
    public function __construct(
        ClientInterface $client = null,
        Configuration $config = null,
        HeaderSelector $selector = null
    ) {
        $this->client = $client ?: new Client();
        $this->config = $config ?: new Configuration();
        $this->headerSelector = $selector ?: new HeaderSelector();
    }

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

    /**
     * Operation getWhatsappEventReport
     *
     * Get all your WhatsApp activity (unaggregated events)
     *
     * @param  int $limit Number limitation for the result returned (optional, default to 2500)
     * @param  int $offset Beginning point in the list to retrieve from (optional, default to 0)
     * @param  string $startDate **Mandatory if endDate is used.** Starting date of the report (YYYY-MM-DD). Must be lower than equal to endDate (optional)
     * @param  string $endDate **Mandatory if startDate is used.** Ending date of the report (YYYY-MM-DD). Must be greater than equal to startDate (optional)
     * @param  int $days Number of days in the past including today (positive integer). _Not compatible with &#39;startDate&#39; and &#39;endDate&#39;_ (optional)
     * @param  string $contactNumber Filter results for specific contact (WhatsApp Number with country code. Example, 85264318721) (optional)
     * @param  string $event Filter the report for a specific event type (optional)
     * @param  string $sort Sort the results in the ascending/descending order of record creation. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \SendinBlue\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \SendinBlue\Client\Model\GetWhatsappEventReport
     */
    public function getWhatsappEventReport($limit = '2500', $offset = '0', $startDate = null, $endDate = null, $days = null, $contactNumber = null, $event = null, $sort = 'desc')
    {
        list($response) = $this->getWhatsappEventReportWithHttpInfo($limit, $offset, $startDate, $endDate, $days, $contactNumber, $event, $sort);
        return $response;
    }

    /**
     * Operation getWhatsappEventReportWithHttpInfo
     *
     * Get all your WhatsApp activity (unaggregated events)
     *
     * @param  int $limit Number limitation for the result returned (optional, default to 2500)
     * @param  int $offset Beginning point in the list to retrieve from (optional, default to 0)
     * @param  string $startDate **Mandatory if endDate is used.** Starting date of the report (YYYY-MM-DD). Must be lower than equal to endDate (optional)
     * @param  string $endDate **Mandatory if startDate is used.** Ending date of the report (YYYY-MM-DD). Must be greater than equal to startDate (optional)
     * @param  int $days Number of days in the past including today (positive integer). _Not compatible with &#39;startDate&#39; and &#39;endDate&#39;_ (optional)
     * @param  string $contactNumber Filter results for specific contact (WhatsApp Number with country code. Example, 85264318721) (optional)
     * @param  string $event Filter the report for a specific event type (optional)
     * @param  string $sort Sort the results in the ascending/descending order of record creation. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \SendinBlue\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \SendinBlue\Client\Model\GetWhatsappEventReport, HTTP status code, HTTP response headers (array of strings)
     */
    public function getWhatsappEventReportWithHttpInfo($limit = '2500', $offset = '0', $startDate = null, $endDate = null, $days = null, $contactNumber = null, $event = null, $sort = 'desc')
    {
        $returnType = '\SendinBlue\Client\Model\GetWhatsappEventReport';
        $request = $this->getWhatsappEventReportRequest($limit, $offset, $startDate, $endDate, $days, $contactNumber, $event, $sort);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\SendinBlue\Client\Model\GetWhatsappEventReport',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\SendinBlue\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation getWhatsappEventReportAsync
     *
     * Get all your WhatsApp activity (unaggregated events)
     *
     * @param  int $limit Number limitation for the result returned (optional, default to 2500)
     * @param  int $offset Beginning point in the list to retrieve from (optional, default to 0)
     * @param  string $startDate **Mandatory if endDate is used.** Starting date of the report (YYYY-MM-DD). Must be lower than equal to endDate (optional)
     * @param  string $endDate **Mandatory if startDate is used.** Ending date of the report (YYYY-MM-DD). Must be greater than equal to startDate (optional)
     * @param  int $days Number of days in the past including today (positive integer). _Not compatible with &#39;startDate&#39; and &#39;endDate&#39;_ (optional)
     * @param  string $contactNumber Filter results for specific contact (WhatsApp Number with country code. Example, 85264318721) (optional)
     * @param  string $event Filter the report for a specific event type (optional)
     * @param  string $sort Sort the results in the ascending/descending order of record creation. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsappEventReportAsync($limit = '2500', $offset = '0', $startDate = null, $endDate = null, $days = null, $contactNumber = null, $event = null, $sort = 'desc')
    {
        return $this->getWhatsappEventReportAsyncWithHttpInfo($limit, $offset, $startDate, $endDate, $days, $contactNumber, $event, $sort)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getWhatsappEventReportAsyncWithHttpInfo
     *
     * Get all your WhatsApp activity (unaggregated events)
     *
     * @param  int $limit Number limitation for the result returned (optional, default to 2500)
     * @param  int $offset Beginning point in the list to retrieve from (optional, default to 0)
     * @param  string $startDate **Mandatory if endDate is used.** Starting date of the report (YYYY-MM-DD). Must be lower than equal to endDate (optional)
     * @param  string $endDate **Mandatory if startDate is used.** Ending date of the report (YYYY-MM-DD). Must be greater than equal to startDate (optional)
     * @param  int $days Number of days in the past including today (positive integer). _Not compatible with &#39;startDate&#39; and &#39;endDate&#39;_ (optional)
     * @param  string $contactNumber Filter results for specific contact (WhatsApp Number with country code. Example, 85264318721) (optional)
     * @param  string $event Filter the report for a specific event type (optional)
     * @param  string $sort Sort the results in the ascending/descending order of record creation. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsappEventReportAsyncWithHttpInfo($limit = '2500', $offset = '0', $startDate = null, $endDate = null, $days = null, $contactNumber = null, $event = null, $sort = 'desc')
    {
        $returnType = '\SendinBlue\Client\Model\GetWhatsappEventReport';
        $request = $this->getWhatsappEventReportRequest($limit, $offset, $startDate, $endDate, $days, $contactNumber, $event, $sort);

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

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'getWhatsappEventReport'
     *
     * @param  int $limit Number limitation for the result returned (optional, default to 2500)
     * @param  int $offset Beginning point in the list to retrieve from (optional, default to 0)
     * @param  string $startDate **Mandatory if endDate is used.** Starting date of the report (YYYY-MM-DD). Must be lower than equal to endDate (optional)
     * @param  string $endDate **Mandatory if startDate is used.** Ending date of the report (YYYY-MM-DD). Must be greater than equal to startDate (optional)
     * @param  int $days Number of days in the past including today (positive integer). _Not compatible with &#39;startDate&#39; and &#39;endDate&#39;_ (optional)
     * @param  string $contactNumber Filter results for specific contact (WhatsApp Number with country code. Example, 85264318721) (optional)
     * @param  string $event Filter the report for a specific event type (optional)
     * @param  string $sort Sort the results in the ascending/descending order of record creation. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function getWhatsappEventReportRequest($limit = '2500', $offset = '0', $startDate = null, $endDate = null, $days = null, $contactNumber = null, $event = null, $sort = 'desc')
    {
        if ($limit !== null && $limit > 5000) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling TransactionalWhatsAppApi.getWhatsappEventReport, must be smaller than or equal to 5000.');
        }
        if ($limit !== null && $limit < 0) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling TransactionalWhatsAppApi.getWhatsappEventReport, must be bigger than or equal to 0.');
        }


        $resourcePath = '/whatsapp/statistics/events';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        if ($limit !== null) {
            $queryParams['limit'] = ObjectSerializer::toQueryValue($limit);
        }
        // query params
        if ($offset !== null) {
            $queryParams['offset'] = ObjectSerializer::toQueryValue($offset);
        }
        // query params
        if ($startDate !== null) {
            $queryParams['startDate'] = ObjectSerializer::toQueryValue($startDate);
        }
        // query params
        if ($endDate !== null) {
            $queryParams['endDate'] = ObjectSerializer::toQueryValue($endDate);
        }
        // query params
        if ($days !== null) {
            $queryParams['days'] = ObjectSerializer::toQueryValue($days);
        }
        // query params
        if ($contactNumber !== null) {
            $queryParams['contactNumber'] = ObjectSerializer::toQueryValue($contactNumber);
        }
        // query params
        if ($event !== null) {
            $queryParams['event'] = ObjectSerializer::toQueryValue($event);
        }
        // query params
        if ($sort !== null) {
            $queryParams['sort'] = ObjectSerializer::toQueryValue($sort);
        }


        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

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

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

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation sendWhatsappMessage
     *
     * Send a WhatsApp message
     *
     * @param  \SendinBlue\Client\Model\SendWhatsappMessage $sendWhatsappMessage Values to send WhatsApp message (required)
     *
     * @throws \SendinBlue\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \SendinBlue\Client\Model\InlineResponse2012
     */
    public function sendWhatsappMessage($sendWhatsappMessage)
    {
        list($response) = $this->sendWhatsappMessageWithHttpInfo($sendWhatsappMessage);
        return $response;
    }

    /**
     * Operation sendWhatsappMessageWithHttpInfo
     *
     * Send a WhatsApp message
     *
     * @param  \SendinBlue\Client\Model\SendWhatsappMessage $sendWhatsappMessage Values to send WhatsApp message (required)
     *
     * @throws \SendinBlue\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \SendinBlue\Client\Model\InlineResponse2012, HTTP status code, HTTP response headers (array of strings)
     */
    public function sendWhatsappMessageWithHttpInfo($sendWhatsappMessage)
    {
        $returnType = '\SendinBlue\Client\Model\InlineResponse2012';
        $request = $this->sendWhatsappMessageRequest($sendWhatsappMessage);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 201:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\SendinBlue\Client\Model\InlineResponse2012',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\SendinBlue\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation sendWhatsappMessageAsync
     *
     * Send a WhatsApp message
     *
     * @param  \SendinBlue\Client\Model\SendWhatsappMessage $sendWhatsappMessage Values to send WhatsApp message (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function sendWhatsappMessageAsync($sendWhatsappMessage)
    {
        return $this->sendWhatsappMessageAsyncWithHttpInfo($sendWhatsappMessage)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation sendWhatsappMessageAsyncWithHttpInfo
     *
     * Send a WhatsApp message
     *
     * @param  \SendinBlue\Client\Model\SendWhatsappMessage $sendWhatsappMessage Values to send WhatsApp message (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function sendWhatsappMessageAsyncWithHttpInfo($sendWhatsappMessage)
    {
        $returnType = '\SendinBlue\Client\Model\InlineResponse2012';
        $request = $this->sendWhatsappMessageRequest($sendWhatsappMessage);

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

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'sendWhatsappMessage'
     *
     * @param  \SendinBlue\Client\Model\SendWhatsappMessage $sendWhatsappMessage Values to send WhatsApp message (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function sendWhatsappMessageRequest($sendWhatsappMessage)
    {
        // verify the required parameter 'sendWhatsappMessage' is set
        if ($sendWhatsappMessage === null || (is_array($sendWhatsappMessage) && count($sendWhatsappMessage) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $sendWhatsappMessage when calling sendWhatsappMessage'
            );
        }

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



        // body params
        $_tempBody = null;
        if (isset($sendWhatsappMessage)) {
            $_tempBody = $sendWhatsappMessage;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

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

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

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($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;
    }
}
