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#include <cstring>
#include "NK_C_API.h"

using namespace nitrokey;

extern "C"
{
extern int NK_login(const char *pin, const char *temporary_password) {
    auto m = NitrokeyManager::instance();
    return m->connect() && m->authorize(pin, temporary_password);
}

extern int NK_logout() {
    auto m = NitrokeyManager::instance();
    return m->disconnect();
}
extern const char * NK_status() {
    auto m = NitrokeyManager::instance();
    string s = m->get_status();
    return strdup(s.c_str());
}

extern uint32_t NK_get_hotp_code(uint8_t slot_number){
    auto m = NitrokeyManager::instance();
    return m->get_HOTP_code(slot_number);
}

extern uint32_t NK_get_totp_code(uint8_t slot_number, uint64_t challenge, uint64_t last_totp_time,
                                 uint8_t last_interval){
    auto m = NitrokeyManager::instance();
    return m->get_TOTP_code(slot_number, challenge, last_totp_time, last_interval);
}

extern int NK_erase_hotp_slot(uint8_t slot_number) {
    auto m = NitrokeyManager::instance();
    return m->erase_hotp_slot(slot_number);
}
extern int NK_erase_totp_slot(uint8_t slot_number) {
    auto m = NitrokeyManager::instance();
    return m->erase_totp_slot(slot_number);
}

extern int NK_write_hotp_slot(uint8_t slot_number, const char *slot_name, const char *secret, uint8_t hotp_counter,
                              const char *temporary_password) {
    auto m = NitrokeyManager::instance();
    try {
        m->write_HOTP_slot(slot_number, slot_name, secret, hotp_counter, temporary_password);
    }
    catch (CommandFailedException & commandFailedException){
        return commandFailedException.last_command_status;
    }
    return 0;
}

extern int NK_write_totp_slot(uint8_t slot_number, const char *slot_name, const char *secret, uint16_t time_window,
                              bool use_8_digits, const char *temporary_password) {
    auto m = NitrokeyManager::instance();
    return m->write_TOTP_slot(slot_number, slot_name, secret, time_window, use_8_digits, temporary_password);
}

extern const char* NK_get_totp_slot_name(uint8_t slot_number){
    auto m = NitrokeyManager::instance();
    return m->get_totp_slot_name(slot_number);
}
extern const char* NK_get_hotp_slot_name(uint8_t slot_number){
    auto m = NitrokeyManager::instance();
    return m->get_hotp_slot_name(slot_number);
}

extern void NK_set_debug(bool state){
    auto m = NitrokeyManager::instance();
    m->set_debug(state);
}

extern int NK_totp_set_time(uint64_t time){
    auto m = NitrokeyManager::instance();
    return m->set_time(time);
}
extern int NK_totp_mark_time(){
    auto m = NitrokeyManager::instance();
    return m->get_time();
}

}