/**

* @file helpers.h

* @brief header file for restclient-cpp helpers

* @author Daniel Schauenberg <[email protected]>

* @version

* @date 2010-10-11

*/

#ifndef INCLUDE_RESTCLIENT_CPP_HELPERS_H_

#define INCLUDE_RESTCLIENT_CPP_HELPERS_H_

#include <string>

#include <cctype>

#include <algorithm>

#include <functional>

#include "restclient-cpp/version.h"

/**

* @brief namespace for all RestClient definitions

*/

namespace RestClient {

/**

* @brief: namespace for all helper functions

*/

namespace Helpers {

/** @struct UploadObject

* @brief This structure represents the payload to upload on POST

* requests

* @var UploadObject::data

* Member 'data' contains the data to upload

* @var UploadObject::length

* Member 'length' contains the length of the data to upload

*/

typedef struct {

const char* data;

size_t length;

} UploadObject;

// writedata callback function

size_t write_callback(void *ptr, size_t size, size_t nmemb,

void *userdata);

// header callback function

size_t header_callback(void *ptr, size_t size, size_t nmemb,

void *userdata);

// read callback function

size_t read_callback(void *ptr, size_t size, size_t nmemb,

void *userdata);

// trim from start

static inline std::string &ltrim(std::string &s) { // NOLINT

s.erase(s.begin(), std::find_if(s.begin(), s.end(),

[](int c) {return !std::isspace(c);}));

return s;

}

// trim from end

static inline std::string &rtrim(std::string &s) { // NOLINT

s.erase(std::find_if(s.rbegin(), s.rend(),

[](int c) {return !std::isspace(c);}).base(), s.end());

return s;

}

// trim from both ends

static inline std::string &trim(std::string &s) { // NOLINT

return ltrim(rtrim(s));

}

}; // namespace Helpers

}; // namespace RestClient

#endif // INCLUDE_RESTCLIENT_CPP_HELPERS_H_