/*

 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>

 *

 * This program is free software: you can use, redistribute, and/or modify

 * it under the terms of the GNU Affero General Public License, version 3

 * or later ("AGPL"), as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.

 *

 * You should have received a copy of the GNU Affero General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

#define _DEFAULT_SOURCE

#include <stdio.h>

#include <stdint.h>

#include <string.h>

// formatTotp formats the TOTP code with leading zeros to match the specified digit length.

int taosFormatTotp(int32_t totp, int digits, char *buffer, size_t size) {

  return snprintf(buffer, size, "%0*d", digits, totp);

}

#ifndef TD_ENTERPRISE

int32_t taosGenerateTotpCode(const uint8_t *secret, size_t secretLen, int digits) {

  return 0;

}

int taosVerifyTotpCode(const uint8_t *secret, size_t secretLen, int32_t userCode, int digits, int window) {

  return 1;

}

int taosGenerateTotpSecret(const char *seed, size_t seedLen, uint8_t *secret, size_t secretLen) {

  memset(secret, 0, secretLen);

  return secretLen;

}

#endif // TD_ENTERPRISE