/*
 * 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_LOG_H
#define _TD_LIBS_SYNC_RAFT_LOG_H

#ifdef __cplusplus
extern "C" {
#endif

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

#define SYNC_INDEX_BEGIN 0
#define SYNC_INDEX_INVALID -1

typedef struct SSyncLogStoreData {
  SSyncNode* pSyncNode;
  SWal*      pWal;
} SSyncLogStoreData;

SSyncLogStore*  logStoreCreate(SSyncNode* pSyncNode);
void            logStoreDestory(SSyncLogStore* pLogStore);
int32_t         logStoreAppendEntry(SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry);
SSyncRaftEntry* logStoreGetEntry(SSyncLogStore* pLogStore, SyncIndex index);
int32_t         logStoreTruncate(SSyncLogStore* pLogStore, SyncIndex fromIndex);
SyncIndex       logStoreLastIndex(SSyncLogStore* pLogStore);
SyncTerm        logStoreLastTerm(SSyncLogStore* pLogStore);
int32_t         logStoreUpdateCommitIndex(SSyncLogStore* pLogStore, SyncIndex index);
SyncIndex       logStoreGetCommitIndex(SSyncLogStore* pLogStore);
SSyncRaftEntry* logStoreGetLastEntry(SSyncLogStore* pLogStore);
cJSON*          logStore2Json(SSyncLogStore* pLogStore);
char*           logStore2Str(SSyncLogStore* pLogStore);

// for debug
void logStorePrint(SSyncLogStore* pLogStore);
void logStorePrint2(char* s, SSyncLogStore* pLogStore);
void logStoreLog(SSyncLogStore* pLogStore);
void logStoreLog2(char* s, SSyncLogStore* pLogStore);

#ifdef __cplusplus
}
#endif

#endif /*_TD_LIBS_SYNC_RAFT_LOG_H*/
