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#ifndef LIBNITROKEY_NK_C_API_HELPERS_H
#define LIBNITROKEY_NK_C_API_HELPERS_H
#include "NK_C_API.h"
#include <iostream>
#include <tuple>
#include "libnitrokey/NitrokeyManager.h"
#include <cstring>
#include "libnitrokey/LibraryException.h"
#include "libnitrokey/cxx_semantics.h"
#include "libnitrokey/stick20_commands.h"
#include "libnitrokey/device_proto.h"
#include "libnitrokey/version.h"
void clear_string(std::string &s);
extern uint8_t NK_last_command_status;
template <typename T>
T* duplicate_vector_and_clear(std::vector<T> &v){
auto d = new T[v.size()];
std::copy(v.begin(), v.end(), d);
std::fill(v.begin(), v.end(), 0);
return d;
}
template <typename R, typename T>
std::tuple<int, R> get_with_status(T func, R fallback) {
NK_last_command_status = 0;
try {
return std::make_tuple(0, func());
}
catch (CommandFailedException & commandFailedException){
NK_last_command_status = commandFailedException.last_command_status;
}
catch (LibraryException & libraryException){
NK_last_command_status = libraryException.exception_id();
}
catch (const DeviceCommunicationException &deviceException){
NK_last_command_status = 256-deviceException.getType();
}
return std::make_tuple(NK_last_command_status, fallback);
}
template <typename T>
uint8_t * get_with_array_result(T func){
return std::get<1>(get_with_status<uint8_t*>(func, nullptr));
}
template <typename T>
char* get_with_string_result(T func){
auto result = std::get<1>(get_with_status<char*>(func, nullptr));
if (result == nullptr) {
return strndup("", MAXIMUM_STR_REPLY_LENGTH);
}
return result;
}
template <typename T>
auto get_with_result(T func){
return std::get<1>(get_with_status(func, static_cast<decltype(func())>(0)));
}
template <typename T>
uint8_t get_without_result(T func){
NK_last_command_status = 0;
try {
func();
return 0;
}
catch (CommandFailedException & commandFailedException){
NK_last_command_status = commandFailedException.last_command_status;
}
catch (LibraryException & libraryException){
NK_last_command_status = libraryException.exception_id();
}
catch (const InvalidCRCReceived &invalidCRCException){
;
}
catch (const DeviceCommunicationException &deviceException){
NK_last_command_status = 256-deviceException.getType();
}
return NK_last_command_status;
}
#endif // LIBNITROKEY_NK_C_API_HELPERS_H
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