/*
 * 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/>.
 */

#ifndef _TD_LIBS_SYNC_RAFT_STORE_H
#define _TD_LIBS_SYNC_RAFT_STORE_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "cJSON.h"
#include "syncInt.h"
#include "syncRaft.h"
#include "taosdef.h"

#define RAFT_STORE_BLOCK_SIZE 512
#define RAFT_STORE_PATH_LEN 128

typedef struct SRaftStore {
  SyncTerm currentTerm;
  SRaftId  voteFor;
  // FileFd   fd;
  TdFilePtr pFile;
  char      path[RAFT_STORE_PATH_LEN];
} SRaftStore;

SRaftStore *raftStoreOpen(const char *path);

static int32_t raftStoreInit(SRaftStore *pRaftStore);

int32_t raftStoreClose(SRaftStore *pRaftStore);

int32_t raftStorePersist(SRaftStore *pRaftStore);

static bool raftStoreFileExist(char *path);

int32_t raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len);

int32_t raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len);

void raftStorePrint(SRaftStore *pRaftStore);

#ifdef __cplusplus
}
#endif

#endif /*_TD_LIBS_SYNC_RAFT_STORE_H*/
