/*
 * 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 "syncMessage.h"
#include "syncRaftCfg.h"
#include "syncRaftEntry.h"
#include "syncUtil.h"
#include "tcoding.h"

int32_t syncBuildTimeout(SRpcMsg* pMsg, ESyncTimeoutType timeoutType, uint64_t logicClock, int32_t timerMS,
                         SSyncNode* pNode) {
  int32_t bytes = sizeof(SyncTimeout);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_TIMEOUT;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncTimeout* pTimeout = pMsg->pCont;
  pTimeout->bytes = bytes;
  pTimeout->msgType = TDMT_SYNC_TIMEOUT;
  pTimeout->vgId = pNode->vgId;
  pTimeout->timeoutType = timeoutType;
  pTimeout->logicClock = logicClock;
  pTimeout->timerMS = timerMS;
  pTimeout->data = pNode;
  return 0;
}

int32_t syncBuildClientRequest(SRpcMsg* pMsg, const SRpcMsg* pOriginal, uint64_t seqNum, bool isWeak, int32_t vgId) {
  int32_t bytes = sizeof(SyncClientRequest) + pOriginal->contLen;
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_CLIENT_REQUEST;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncClientRequest* pClientRequest = pMsg->pCont;
  pClientRequest->bytes = bytes;
  pClientRequest->vgId = vgId;
  pClientRequest->msgType = TDMT_SYNC_CLIENT_REQUEST;
  pClientRequest->originalRpcType = pOriginal->msgType;
  pClientRequest->seqNum = seqNum;
  pClientRequest->isWeak = isWeak;
  pClientRequest->dataLen = pOriginal->contLen;
  memcpy(pClientRequest->data, (char*)pOriginal->pCont, pOriginal->contLen);

  return 0;
}

int32_t syncBuildClientRequestFromNoopEntry(SRpcMsg* pMsg, const SSyncRaftEntry* pEntry, int32_t vgId) {
  int32_t bytes = sizeof(SyncClientRequest) + pEntry->bytes;
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_CLIENT_REQUEST;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncClientRequest* pClientRequest = pMsg->pCont;
  pClientRequest->bytes = bytes;
  pClientRequest->vgId = vgId;
  pClientRequest->msgType = TDMT_SYNC_CLIENT_REQUEST;
  pClientRequest->originalRpcType = TDMT_SYNC_NOOP;
  pClientRequest->dataLen = pEntry->bytes;
  memcpy(pClientRequest->data, (char*)pEntry, pEntry->bytes);

  return 0;
}

int32_t syncBuildRequestVote(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncRequestVote);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_REQUEST_VOTE;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncRequestVote* pRequestVote = pMsg->pCont;
  pRequestVote->bytes = bytes;
  pRequestVote->msgType = TDMT_SYNC_REQUEST_VOTE;
  pRequestVote->vgId = vgId;
  return 0;
}

int32_t syncBuildRequestVoteReply(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncRequestVoteReply);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_REQUEST_VOTE_REPLY;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncRequestVoteReply* pRequestVoteReply = pMsg->pCont;
  pRequestVoteReply->bytes = bytes;
  pRequestVoteReply->msgType = TDMT_SYNC_REQUEST_VOTE_REPLY;
  pRequestVoteReply->vgId = vgId;
  return 0;
}

int32_t syncBuildAppendEntries(SRpcMsg* pMsg, int32_t dataLen, int32_t vgId) {
  int32_t bytes = sizeof(SyncAppendEntries) + dataLen;
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_APPEND_ENTRIES;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncAppendEntries* pAppendEntries = pMsg->pCont;
  pAppendEntries->bytes = bytes;
  pAppendEntries->vgId = vgId;
  pAppendEntries->msgType = TDMT_SYNC_APPEND_ENTRIES;
  pAppendEntries->dataLen = dataLen;
  return 0;
}

int32_t syncBuildAppendEntriesReply(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncAppendEntriesReply);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_APPEND_ENTRIES_REPLY;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncAppendEntriesReply* pAppendEntriesReply = pMsg->pCont;
  pAppendEntriesReply->bytes = bytes;
  pAppendEntriesReply->msgType = TDMT_SYNC_APPEND_ENTRIES_REPLY;
  pAppendEntriesReply->vgId = vgId;
  return 0;
}

int32_t syncBuildHeartbeat(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncHeartbeat);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_HEARTBEAT;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncHeartbeat* pHeartbeat = pMsg->pCont;
  pHeartbeat->bytes = bytes;
  pHeartbeat->msgType = TDMT_SYNC_HEARTBEAT;
  pHeartbeat->vgId = vgId;
  return 0;
}

int32_t syncBuildHeartbeatReply(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncHeartbeatReply);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_HEARTBEAT_REPLY;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncHeartbeatReply* pHeartbeatReply = pMsg->pCont;
  pHeartbeatReply->bytes = bytes;
  pHeartbeatReply->msgType = TDMT_SYNC_HEARTBEAT_REPLY;
  pHeartbeatReply->vgId = vgId;
  return 0;
}

int32_t syncBuildPreSnapshot(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncPreSnapshot);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_PRE_SNAPSHOT;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncPreSnapshot* pPreSnapshot = pMsg->pCont;
  pPreSnapshot->bytes = bytes;
  pPreSnapshot->msgType = TDMT_SYNC_PRE_SNAPSHOT;
  pPreSnapshot->vgId = vgId;
  return 0;
}

int32_t syncBuildPreSnapshotReply(SRpcMsg* pMsg, int32_t vgId) {
  int32_t bytes = sizeof(SyncPreSnapshotReply);
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_PRE_SNAPSHOT_REPLY;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncPreSnapshotReply* pPreSnapshotReply = pMsg->pCont;
  pPreSnapshotReply->bytes = bytes;
  pPreSnapshotReply->msgType = TDMT_SYNC_PRE_SNAPSHOT_REPLY;
  pPreSnapshotReply->vgId = vgId;
  return 0;
}

int32_t syncBuildSnapshotSend(SRpcMsg* pMsg, int32_t dataLen, int32_t vgId) {
  int32_t bytes = sizeof(SyncSnapshotSend) + dataLen;
  pMsg->pCont = rpcMallocCont(bytes);
  pMsg->msgType = TDMT_SYNC_SNAPSHOT_SEND;
  pMsg->contLen = bytes;
  if (pMsg->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  SyncSnapshotSend* pSnapshotSend = pMsg->pCont;
  pSnapshotSend->bytes = bytes;
  pSnapshotSend->vgId = vgId;
  pSnapshotSend->msgType = TDMT_SYNC_SNAPSHOT_SEND;
  pSnapshotSend->dataLen = dataLen;
  return 0;
}

SyncSnapshotRsp* syncSnapshotRspBuild(int32_t vgId) {
  uint32_t         bytes = sizeof(SyncSnapshotRsp);
  SyncSnapshotRsp* pMsg = taosMemoryMalloc(bytes);
  memset(pMsg, 0, bytes);
  pMsg->bytes = bytes;
  pMsg->vgId = vgId;
  pMsg->msgType = TDMT_SYNC_SNAPSHOT_RSP;
  return pMsg;
}

void syncSnapshotRspDestroy(SyncSnapshotRsp* pMsg) {
  if (pMsg != NULL) {
    taosMemoryFree(pMsg);
  }
}

void syncSnapshotRspSerialize(const SyncSnapshotRsp* pMsg, char* buf, uint32_t bufLen) {
  ASSERT(pMsg->bytes <= bufLen);
  memcpy(buf, pMsg, pMsg->bytes);
}

void syncSnapshotRspDeserialize(const char* buf, uint32_t len, SyncSnapshotRsp* pMsg) {
  memcpy(pMsg, buf, len);
  ASSERT(len == pMsg->bytes);
}

char* syncSnapshotRspSerialize2(const SyncSnapshotRsp* pMsg, uint32_t* len) {
  char* buf = taosMemoryMalloc(pMsg->bytes);
  ASSERT(buf != NULL);
  syncSnapshotRspSerialize(pMsg, buf, pMsg->bytes);
  if (len != NULL) {
    *len = pMsg->bytes;
  }
  return buf;
}

SyncSnapshotRsp* syncSnapshotRspDeserialize2(const char* buf, uint32_t len) {
  uint32_t         bytes = *((uint32_t*)buf);
  SyncSnapshotRsp* pMsg = taosMemoryMalloc(bytes);
  ASSERT(pMsg != NULL);
  syncSnapshotRspDeserialize(buf, len, pMsg);
  ASSERT(len == pMsg->bytes);
  return pMsg;
}

void syncSnapshotRsp2RpcMsg(const SyncSnapshotRsp* pMsg, SRpcMsg* pRpcMsg) {
  memset(pRpcMsg, 0, sizeof(*pRpcMsg));
  pRpcMsg->msgType = pMsg->msgType;
  pRpcMsg->contLen = pMsg->bytes;
  pRpcMsg->pCont = rpcMallocCont(pRpcMsg->contLen);
  syncSnapshotRspSerialize(pMsg, pRpcMsg->pCont, pRpcMsg->contLen);
}

void syncSnapshotRspFromRpcMsg(const SRpcMsg* pRpcMsg, SyncSnapshotRsp* pMsg) {
  syncSnapshotRspDeserialize(pRpcMsg->pCont, pRpcMsg->contLen, pMsg);
}

SyncSnapshotRsp* syncSnapshotRspFromRpcMsg2(const SRpcMsg* pRpcMsg) {
  SyncSnapshotRsp* pMsg = syncSnapshotRspDeserialize2(pRpcMsg->pCont, pRpcMsg->contLen);
  ASSERT(pMsg != NULL);
  return pMsg;
}

cJSON* syncSnapshotRsp2Json(const SyncSnapshotRsp* pMsg) {
  char   u64buf[128];
  cJSON* pRoot = cJSON_CreateObject();

  if (pMsg != NULL) {
    cJSON_AddNumberToObject(pRoot, "bytes", pMsg->bytes);
    cJSON_AddNumberToObject(pRoot, "vgId", pMsg->vgId);
    cJSON_AddNumberToObject(pRoot, "msgType", pMsg->msgType);

    cJSON* pSrcId = cJSON_CreateObject();
    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->srcId.addr);
    cJSON_AddStringToObject(pSrcId, "addr", u64buf);
    {
      uint64_t u64 = pMsg->srcId.addr;
      cJSON*   pTmp = pSrcId;
      char     host[128];
      uint16_t port;
      syncUtilU642Addr(u64, host, sizeof(host), &port);
      cJSON_AddStringToObject(pTmp, "addr_host", host);
      cJSON_AddNumberToObject(pTmp, "addr_port", port);
    }
    cJSON_AddNumberToObject(pSrcId, "vgId", pMsg->srcId.vgId);
    cJSON_AddItemToObject(pRoot, "srcId", pSrcId);

    cJSON* pDestId = cJSON_CreateObject();
    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->destId.addr);
    cJSON_AddStringToObject(pDestId, "addr", u64buf);
    {
      uint64_t u64 = pMsg->destId.addr;
      cJSON*   pTmp = pDestId;
      char     host[128];
      uint16_t port;
      syncUtilU642Addr(u64, host, sizeof(host), &port);
      cJSON_AddStringToObject(pTmp, "addr_host", host);
      cJSON_AddNumberToObject(pTmp, "addr_port", port);
    }
    cJSON_AddNumberToObject(pDestId, "vgId", pMsg->destId.vgId);
    cJSON_AddItemToObject(pRoot, "destId", pDestId);

    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->term);
    cJSON_AddStringToObject(pRoot, "term", u64buf);

    snprintf(u64buf, sizeof(u64buf), "%" PRId64, pMsg->startTime);
    cJSON_AddStringToObject(pRoot, "startTime", u64buf);

    snprintf(u64buf, sizeof(u64buf), "%" PRId64, pMsg->lastIndex);
    cJSON_AddStringToObject(pRoot, "lastIndex", u64buf);

    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->lastTerm);
    cJSON_AddStringToObject(pRoot, "lastTerm", u64buf);

    cJSON_AddNumberToObject(pRoot, "ack", pMsg->ack);
    cJSON_AddNumberToObject(pRoot, "code", pMsg->code);

    snprintf(u64buf, sizeof(u64buf), "%" PRId64, pMsg->snapBeginIndex);
    cJSON_AddStringToObject(pRoot, "snap-begin", u64buf);
  }

  cJSON* pJson = cJSON_CreateObject();
  cJSON_AddItemToObject(pJson, "SyncSnapshotRsp", pRoot);
  return pJson;
}

char* syncSnapshotRsp2Str(const SyncSnapshotRsp* pMsg) {
  cJSON* pJson = syncSnapshotRsp2Json(pMsg);
  char*  serialized = cJSON_Print(pJson);
  cJSON_Delete(pJson);
  return serialized;
}

// for debug ----------------------
void syncSnapshotRspPrint(const SyncSnapshotRsp* pMsg) {
  char* serialized = syncSnapshotRsp2Str(pMsg);
  printf("syncSnapshotRspPrint | len:%d | %s \n", (int32_t)strlen(serialized), serialized);
  fflush(NULL);
  taosMemoryFree(serialized);
}

void syncSnapshotRspPrint2(char* s, const SyncSnapshotRsp* pMsg) {
  char* serialized = syncSnapshotRsp2Str(pMsg);
  printf("syncSnapshotRspPrint2 | len:%d | %s | %s \n", (int32_t)strlen(serialized), s, serialized);
  fflush(NULL);
  taosMemoryFree(serialized);
}

void syncSnapshotRspLog(const SyncSnapshotRsp* pMsg) {
  char* serialized = syncSnapshotRsp2Str(pMsg);
  sTrace("syncSnapshotRspLog | len:%d | %s", (int32_t)strlen(serialized), serialized);
  taosMemoryFree(serialized);
}

void syncSnapshotRspLog2(char* s, const SyncSnapshotRsp* pMsg) {
  if (gRaftDetailLog) {
    char* serialized = syncSnapshotRsp2Str(pMsg);
    sTrace("syncSnapshotRspLog2 | len:%d | %s | %s", (int32_t)strlen(serialized), s, serialized);
    taosMemoryFree(serialized);
  }
}

// ---------------------------------------------
SyncLeaderTransfer* syncLeaderTransferBuild(int32_t vgId) {
  uint32_t            bytes = sizeof(SyncLeaderTransfer);
  SyncLeaderTransfer* pMsg = taosMemoryMalloc(bytes);
  memset(pMsg, 0, bytes);
  pMsg->bytes = bytes;
  pMsg->vgId = vgId;
  pMsg->msgType = TDMT_SYNC_LEADER_TRANSFER;
  return pMsg;
}

void syncLeaderTransferDestroy(SyncLeaderTransfer* pMsg) {
  if (pMsg != NULL) {
    taosMemoryFree(pMsg);
  }
}

void syncLeaderTransferSerialize(const SyncLeaderTransfer* pMsg, char* buf, uint32_t bufLen) {
  ASSERT(pMsg->bytes <= bufLen);
  memcpy(buf, pMsg, pMsg->bytes);
}

void syncLeaderTransferDeserialize(const char* buf, uint32_t len, SyncLeaderTransfer* pMsg) {
  memcpy(pMsg, buf, len);
  ASSERT(len == pMsg->bytes);
}

char* syncLeaderTransferSerialize2(const SyncLeaderTransfer* pMsg, uint32_t* len) {
  char* buf = taosMemoryMalloc(pMsg->bytes);
  ASSERT(buf != NULL);
  syncLeaderTransferSerialize(pMsg, buf, pMsg->bytes);
  if (len != NULL) {
    *len = pMsg->bytes;
  }
  return buf;
}

SyncLeaderTransfer* syncLeaderTransferDeserialize2(const char* buf, uint32_t len) {
  uint32_t            bytes = *((uint32_t*)buf);
  SyncLeaderTransfer* pMsg = taosMemoryMalloc(bytes);
  ASSERT(pMsg != NULL);
  syncLeaderTransferDeserialize(buf, len, pMsg);
  ASSERT(len == pMsg->bytes);
  return pMsg;
}

void syncLeaderTransfer2RpcMsg(const SyncLeaderTransfer* pMsg, SRpcMsg* pRpcMsg) {
  memset(pRpcMsg, 0, sizeof(*pRpcMsg));
  pRpcMsg->msgType = pMsg->msgType;
  pRpcMsg->contLen = pMsg->bytes;
  pRpcMsg->pCont = rpcMallocCont(pRpcMsg->contLen);
  syncLeaderTransferSerialize(pMsg, pRpcMsg->pCont, pRpcMsg->contLen);
}

void syncLeaderTransferFromRpcMsg(const SRpcMsg* pRpcMsg, SyncLeaderTransfer* pMsg) {
  syncLeaderTransferDeserialize(pRpcMsg->pCont, pRpcMsg->contLen, pMsg);
}

SyncLeaderTransfer* syncLeaderTransferFromRpcMsg2(const SRpcMsg* pRpcMsg) {
  SyncLeaderTransfer* pMsg = syncLeaderTransferDeserialize2(pRpcMsg->pCont, pRpcMsg->contLen);
  ASSERT(pMsg != NULL);
  return pMsg;
}

cJSON* syncLeaderTransfer2Json(const SyncLeaderTransfer* pMsg) {
  char   u64buf[128];
  cJSON* pRoot = cJSON_CreateObject();

  if (pMsg != NULL) {
    cJSON_AddNumberToObject(pRoot, "bytes", pMsg->bytes);
    cJSON_AddNumberToObject(pRoot, "vgId", pMsg->vgId);
    cJSON_AddNumberToObject(pRoot, "msgType", pMsg->msgType);

    /*
        cJSON* pSrcId = cJSON_CreateObject();
        snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->srcId.addr);
        cJSON_AddStringToObject(pSrcId, "addr", u64buf);
        {
          uint64_t u64 = pMsg->srcId.addr;
          cJSON*   pTmp = pSrcId;
          char     host[128];
          uint16_t port;
          syncUtilU642Addr(u64, host, sizeof(host), &port);
          cJSON_AddStringToObject(pTmp, "addr_host", host);
          cJSON_AddNumberToObject(pTmp, "addr_port", port);
        }
        cJSON_AddNumberToObject(pSrcId, "vgId", pMsg->srcId.vgId);
        cJSON_AddItemToObject(pRoot, "srcId", pSrcId);

        cJSON* pDestId = cJSON_CreateObject();
        snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->destId.addr);
        cJSON_AddStringToObject(pDestId, "addr", u64buf);
        {
          uint64_t u64 = pMsg->destId.addr;
          cJSON*   pTmp = pDestId;
          char     host[128];
          uint16_t port;
          syncUtilU642Addr(u64, host, sizeof(host), &port);
          cJSON_AddStringToObject(pTmp, "addr_host", host);
          cJSON_AddNumberToObject(pTmp, "addr_port", port);
        }
        cJSON_AddNumberToObject(pDestId, "vgId", pMsg->destId.vgId);
        cJSON_AddItemToObject(pRoot, "destId", pDestId);
    */

    cJSON* pNewerId = cJSON_CreateObject();
    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->newLeaderId.addr);
    cJSON_AddStringToObject(pNewerId, "addr", u64buf);
    {
      uint64_t u64 = pMsg->newLeaderId.addr;
      cJSON*   pTmp = pNewerId;
      char     host[128];
      uint16_t port;
      syncUtilU642Addr(u64, host, sizeof(host), &port);
      cJSON_AddStringToObject(pTmp, "addr_host", host);
      cJSON_AddNumberToObject(pTmp, "addr_port", port);
    }
    cJSON_AddNumberToObject(pNewerId, "vgId", pMsg->newLeaderId.vgId);
    cJSON_AddItemToObject(pRoot, "newLeaderId", pNewerId);
  }

  cJSON* pJson = cJSON_CreateObject();
  cJSON_AddItemToObject(pJson, "SyncLeaderTransfer", pRoot);
  return pJson;
}

char* syncLeaderTransfer2Str(const SyncLeaderTransfer* pMsg) {
  cJSON* pJson = syncLeaderTransfer2Json(pMsg);
  char*  serialized = cJSON_Print(pJson);
  cJSON_Delete(pJson);
  return serialized;
}

const char* syncLocalCmdGetStr(int32_t cmd) {
  if (cmd == SYNC_LOCAL_CMD_STEP_DOWN) {
    return "step-down";
  } else if (cmd == SYNC_LOCAL_CMD_FOLLOWER_CMT) {
    return "follower-commit";
  }

  return "unknown-local-cmd";
}

SyncLocalCmd* syncLocalCmdBuild(int32_t vgId) {
  uint32_t      bytes = sizeof(SyncLocalCmd);
  SyncLocalCmd* pMsg = taosMemoryMalloc(bytes);
  memset(pMsg, 0, bytes);
  pMsg->bytes = bytes;
  pMsg->vgId = vgId;
  pMsg->msgType = TDMT_SYNC_LOCAL_CMD;
  return pMsg;
}

void syncLocalCmdDestroy(SyncLocalCmd* pMsg) {
  if (pMsg != NULL) {
    taosMemoryFree(pMsg);
  }
}

void syncLocalCmdSerialize(const SyncLocalCmd* pMsg, char* buf, uint32_t bufLen) {
  ASSERT(pMsg->bytes <= bufLen);
  memcpy(buf, pMsg, pMsg->bytes);
}

void syncLocalCmdDeserialize(const char* buf, uint32_t len, SyncLocalCmd* pMsg) {
  memcpy(pMsg, buf, len);
  ASSERT(len == pMsg->bytes);
}

char* syncLocalCmdSerialize2(const SyncLocalCmd* pMsg, uint32_t* len) {
  char* buf = taosMemoryMalloc(pMsg->bytes);
  ASSERT(buf != NULL);
  syncLocalCmdSerialize(pMsg, buf, pMsg->bytes);
  if (len != NULL) {
    *len = pMsg->bytes;
  }
  return buf;
}

SyncLocalCmd* syncLocalCmdDeserialize2(const char* buf, uint32_t len) {
  uint32_t      bytes = *((uint32_t*)buf);
  SyncLocalCmd* pMsg = taosMemoryMalloc(bytes);
  ASSERT(pMsg != NULL);
  syncLocalCmdDeserialize(buf, len, pMsg);
  ASSERT(len == pMsg->bytes);
  return pMsg;
}

void syncLocalCmd2RpcMsg(const SyncLocalCmd* pMsg, SRpcMsg* pRpcMsg) {
  memset(pRpcMsg, 0, sizeof(*pRpcMsg));
  pRpcMsg->msgType = pMsg->msgType;
  pRpcMsg->contLen = pMsg->bytes;
  pRpcMsg->pCont = rpcMallocCont(pRpcMsg->contLen);
  syncLocalCmdSerialize(pMsg, pRpcMsg->pCont, pRpcMsg->contLen);
}

void syncLocalCmdFromRpcMsg(const SRpcMsg* pRpcMsg, SyncLocalCmd* pMsg) {
  syncLocalCmdDeserialize(pRpcMsg->pCont, pRpcMsg->contLen, pMsg);
}

SyncLocalCmd* syncLocalCmdFromRpcMsg2(const SRpcMsg* pRpcMsg) {
  SyncLocalCmd* pMsg = syncLocalCmdDeserialize2(pRpcMsg->pCont, pRpcMsg->contLen);
  ASSERT(pMsg != NULL);
  return pMsg;
}

cJSON* syncLocalCmd2Json(const SyncLocalCmd* pMsg) {
  char   u64buf[128];
  cJSON* pRoot = cJSON_CreateObject();

  if (pMsg != NULL) {
    cJSON_AddNumberToObject(pRoot, "bytes", pMsg->bytes);
    cJSON_AddNumberToObject(pRoot, "vgId", pMsg->vgId);
    cJSON_AddNumberToObject(pRoot, "msgType", pMsg->msgType);

    cJSON* pSrcId = cJSON_CreateObject();
    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->srcId.addr);
    cJSON_AddStringToObject(pSrcId, "addr", u64buf);
    {
      uint64_t u64 = pMsg->srcId.addr;
      cJSON*   pTmp = pSrcId;
      char     host[128];
      uint16_t port;
      syncUtilU642Addr(u64, host, sizeof(host), &port);
      cJSON_AddStringToObject(pTmp, "addr_host", host);
      cJSON_AddNumberToObject(pTmp, "addr_port", port);
    }
    cJSON_AddNumberToObject(pSrcId, "vgId", pMsg->srcId.vgId);
    cJSON_AddItemToObject(pRoot, "srcId", pSrcId);

    cJSON* pDestId = cJSON_CreateObject();
    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->destId.addr);
    cJSON_AddStringToObject(pDestId, "addr", u64buf);
    {
      uint64_t u64 = pMsg->destId.addr;
      cJSON*   pTmp = pDestId;
      char     host[128];
      uint16_t port;
      syncUtilU642Addr(u64, host, sizeof(host), &port);
      cJSON_AddStringToObject(pTmp, "addr_host", host);
      cJSON_AddNumberToObject(pTmp, "addr_port", port);
    }
    cJSON_AddNumberToObject(pDestId, "vgId", pMsg->destId.vgId);
    cJSON_AddItemToObject(pRoot, "destId", pDestId);

    cJSON_AddNumberToObject(pRoot, "cmd", pMsg->cmd);

    snprintf(u64buf, sizeof(u64buf), "%" PRIu64, pMsg->sdNewTerm);
    cJSON_AddStringToObject(pRoot, "sd-new-term", u64buf);

    snprintf(u64buf, sizeof(u64buf), "%" PRId64, pMsg->fcIndex);
    cJSON_AddStringToObject(pRoot, "fc-index", u64buf);
  }

  cJSON* pJson = cJSON_CreateObject();
  cJSON_AddItemToObject(pJson, "SyncLocalCmd2Json", pRoot);
  return pJson;
}

char* syncLocalCmd2Str(const SyncLocalCmd* pMsg) {
  cJSON* pJson = syncLocalCmd2Json(pMsg);
  char*  serialized = cJSON_Print(pJson);
  cJSON_Delete(pJson);
  return serialized;
}

// for debug ----------------------
void syncLocalCmdPrint(const SyncLocalCmd* pMsg) {
  char* serialized = syncLocalCmd2Str(pMsg);
  printf("syncLocalCmdPrint | len:%d | %s \n", (int32_t)strlen(serialized), serialized);
  fflush(NULL);
  taosMemoryFree(serialized);
}

void syncLocalCmdPrint2(char* s, const SyncLocalCmd* pMsg) {
  char* serialized = syncLocalCmd2Str(pMsg);
  printf("syncLocalCmdPrint2 | len:%d | %s | %s \n", (int32_t)strlen(serialized), s, serialized);
  fflush(NULL);
  taosMemoryFree(serialized);
}

void syncLocalCmdLog(const SyncLocalCmd* pMsg) {
  char* serialized = syncLocalCmd2Str(pMsg);
  sTrace("syncLocalCmdLog | len:%d | %s", (int32_t)strlen(serialized), serialized);
  taosMemoryFree(serialized);
}

void syncLocalCmdLog2(char* s, const SyncLocalCmd* pMsg) {
  if (gRaftDetailLog) {
    char* serialized = syncLocalCmd2Str(pMsg);
    sTrace("syncLocalCmdLog2 | len:%d | %s | %s", (int32_t)strlen(serialized), s, serialized);
    taosMemoryFree(serialized);
  }
}