<?php
/**
 * PostPostcardApi
 * PHP version 5
 *
 * @category Class
 * @package  ClickSend
 * @author   ClickSend Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */

/**
 * ClickSend v3 API
 *
 * This is an official SDK for [ClickSend](https://clicksend.com)  Below you will find a current list of the available methods for clicksend.  *NOTE: You will need to create a free account to use the API. You can register [here](https://dashboard.clicksend.com/#/signup/step1/)..*
 *
 * OpenAPI spec version: 3.1
 * Contact: support@clicksend.com
 * Generated by: https://github.com/swagger-api/swagger-codegen.git
 * ClickSend Codegen version: 3.0.51
 */
/**
 * 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 ClickSend\Api;

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

/**
 * PostPostcardApi Class Doc Comment
 *
 * @category Class
 * @package  ClickSend
 * @author   ClickSend Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */
class PostPostcardApi
{
    /**
     * @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 postPostcardsHistoryExportGet
     *
     * Export postcard history to a CSV file
     *
     * @param  string $filename Filename to export to (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return string
     */
    public function postPostcardsHistoryExportGet($filename)
    {
        list($response) = $this->postPostcardsHistoryExportGetWithHttpInfo($filename);
        return $response;
    }

    /**
     * Operation postPostcardsHistoryExportGetWithHttpInfo
     *
     * Export postcard history to a CSV file
     *
     * @param  string $filename Filename to export to (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of string, HTTP status code, HTTP response headers (array of strings)
     */
    public function postPostcardsHistoryExportGetWithHttpInfo($filename)
    {
        $returnType = 'string';
        $request = $this->postPostcardsHistoryExportGetRequest($filename);

        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 = $responseBody->getContents();
                if (!in_array($returnType, ['string','integer','bool'])) {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 401:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 403:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 405:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 429:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                default:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation postPostcardsHistoryExportGetAsync
     *
     * Export postcard history to a CSV file
     *
     * @param  string $filename Filename to export to (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsHistoryExportGetAsync($filename)
    {
        return $this->postPostcardsHistoryExportGetAsyncWithHttpInfo($filename)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation postPostcardsHistoryExportGetAsyncWithHttpInfo
     *
     * Export postcard history to a CSV file
     *
     * @param  string $filename Filename to export to (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsHistoryExportGetAsyncWithHttpInfo($filename)
    {
        $returnType = 'string';
        $request = $this->postPostcardsHistoryExportGetRequest($filename);

        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 'postPostcardsHistoryExportGet'
     *
     * @param  string $filename Filename to export to (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function postPostcardsHistoryExportGetRequest($filename)
    {
        // verify the required parameter 'filename' is set
        if ($filename === null || (is_array($filename) && count($filename) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $filename when calling postPostcardsHistoryExportGet'
            );
        }

        $resourcePath = '/post/postcards/history/export';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        if ($filename !== null) {
            $queryParams['filename'] = ObjectSerializer::toQueryValue($filename, null);
        }


        // body params
        $_tempBody = null;

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

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            // \stdClass has no __toString(), so we should encode it manually
            if ($httpBody instanceof \stdClass && $headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($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 HTTP basic authentication
        if ($this->config->getUsername() !== null || $this->config->getPassword() !== null) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        $defaultHeaders = [];
        if ($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 postPostcardsHistoryGet
     *
     * Retrieve the history of postcards sent or scheduled
     *
     * @param  int $page Page number (optional, default to 1)
     * @param  int $limit Number of records per page (optional, default to 10)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return string
     */
    public function postPostcardsHistoryGet($page = '1', $limit = '10')
    {
        list($response) = $this->postPostcardsHistoryGetWithHttpInfo($page, $limit);
        return $response;
    }

    /**
     * Operation postPostcardsHistoryGetWithHttpInfo
     *
     * Retrieve the history of postcards sent or scheduled
     *
     * @param  int $page Page number (optional, default to 1)
     * @param  int $limit Number of records per page (optional, default to 10)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of string, HTTP status code, HTTP response headers (array of strings)
     */
    public function postPostcardsHistoryGetWithHttpInfo($page = '1', $limit = '10')
    {
        $returnType = 'string';
        $request = $this->postPostcardsHistoryGetRequest($page, $limit);

        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 = $responseBody->getContents();
                if (!in_array($returnType, ['string','integer','bool'])) {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 401:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 403:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 405:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 429:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                default:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation postPostcardsHistoryGetAsync
     *
     * Retrieve the history of postcards sent or scheduled
     *
     * @param  int $page Page number (optional, default to 1)
     * @param  int $limit Number of records per page (optional, default to 10)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsHistoryGetAsync($page = '1', $limit = '10')
    {
        return $this->postPostcardsHistoryGetAsyncWithHttpInfo($page, $limit)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation postPostcardsHistoryGetAsyncWithHttpInfo
     *
     * Retrieve the history of postcards sent or scheduled
     *
     * @param  int $page Page number (optional, default to 1)
     * @param  int $limit Number of records per page (optional, default to 10)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsHistoryGetAsyncWithHttpInfo($page = '1', $limit = '10')
    {
        $returnType = 'string';
        $request = $this->postPostcardsHistoryGetRequest($page, $limit);

        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 'postPostcardsHistoryGet'
     *
     * @param  int $page Page number (optional, default to 1)
     * @param  int $limit Number of records per page (optional, default to 10)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function postPostcardsHistoryGetRequest($page = '1', $limit = '10')
    {

        $resourcePath = '/post/postcards/history';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        if ($page !== null) {
            $queryParams['page'] = ObjectSerializer::toQueryValue($page, 'int32');
        }
        // query params
        if ($limit !== null) {
            $queryParams['limit'] = ObjectSerializer::toQueryValue($limit, 'int32');
        }


        // body params
        $_tempBody = null;

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

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            // \stdClass has no __toString(), so we should encode it manually
            if ($httpBody instanceof \stdClass && $headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($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 HTTP basic authentication
        if ($this->config->getUsername() !== null || $this->config->getPassword() !== null) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        $defaultHeaders = [];
        if ($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 postPostcardsPricePost
     *
     * Calculate price for sending one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return string
     */
    public function postPostcardsPricePost($body)
    {
        list($response) = $this->postPostcardsPricePostWithHttpInfo($body);
        return $response;
    }

    /**
     * Operation postPostcardsPricePostWithHttpInfo
     *
     * Calculate price for sending one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of string, HTTP status code, HTTP response headers (array of strings)
     */
    public function postPostcardsPricePostWithHttpInfo($body)
    {
        $returnType = 'string';
        $request = $this->postPostcardsPricePostRequest($body);

        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 = $responseBody->getContents();
                if (!in_array($returnType, ['string','integer','bool'])) {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 401:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 403:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 405:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 429:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                default:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation postPostcardsPricePostAsync
     *
     * Calculate price for sending one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsPricePostAsync($body)
    {
        return $this->postPostcardsPricePostAsyncWithHttpInfo($body)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation postPostcardsPricePostAsyncWithHttpInfo
     *
     * Calculate price for sending one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsPricePostAsyncWithHttpInfo($body)
    {
        $returnType = 'string';
        $request = $this->postPostcardsPricePostRequest($body);

        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 'postPostcardsPricePost'
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function postPostcardsPricePostRequest($body)
    {
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling postPostcardsPricePost'
            );
        }

        $resourcePath = '/post/postcards/price';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;



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

        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 = $_tempBody;
            // \stdClass has no __toString(), so we should encode it manually
            if ($httpBody instanceof \stdClass && $headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($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 HTTP basic authentication
        if ($this->config->getUsername() !== null || $this->config->getPassword() !== null) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        $defaultHeaders = [];
        if ($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
        );
    }

    /**
     * Operation postPostcardsSendPost
     *
     * Send one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return string
     */
    public function postPostcardsSendPost($body)
    {
        list($response) = $this->postPostcardsSendPostWithHttpInfo($body);
        return $response;
    }

    /**
     * Operation postPostcardsSendPostWithHttpInfo
     *
     * Send one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \ClickSend\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of string, HTTP status code, HTTP response headers (array of strings)
     */
    public function postPostcardsSendPostWithHttpInfo($body)
    {
        $returnType = 'string';
        $request = $this->postPostcardsSendPostRequest($body);

        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 = $responseBody->getContents();
                if (!in_array($returnType, ['string','integer','bool'])) {
                    $content = json_decode($content);
                }
            }

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

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 401:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 403:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 405:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 429:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                default:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        'string',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation postPostcardsSendPostAsync
     *
     * Send one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsSendPostAsync($body)
    {
        return $this->postPostcardsSendPostAsyncWithHttpInfo($body)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation postPostcardsSendPostAsyncWithHttpInfo
     *
     * Send one or more postcards
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function postPostcardsSendPostAsyncWithHttpInfo($body)
    {
        $returnType = 'string';
        $request = $this->postPostcardsSendPostRequest($body);

        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 'postPostcardsSendPost'
     *
     * @param  \ClickSend\Model\PostPostcard $body PostPostcard model (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function postPostcardsSendPostRequest($body)
    {
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling postPostcardsSendPost'
            );
        }

        $resourcePath = '/post/postcards/send';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;



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

        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 = $_tempBody;
            // \stdClass has no __toString(), so we should encode it manually
            if ($httpBody instanceof \stdClass && $headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($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 HTTP basic authentication
        if ($this->config->getUsername() !== null || $this->config->getPassword() !== null) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        $defaultHeaders = [];
        if ($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;
    }
}
