/*
 * 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_DM_INT_H_
#define _TD_DM_INT_H_

#include "cJSON.h"
#include "tcache.h"
#include "tcrc32c.h"
#include "tdatablock.h"
#include "tglobal.h"
#include "thash.h"
#include "tlockfree.h"
#include "tlog.h"
#include "tmsg.h"
#include "tmsgcb.h"
#include "tqueue.h"
#include "trpc.h"
#include "tthread.h"
#include "ttime.h"
#include "tworker.h"

#include "dnode.h"
#include "mnode.h"
#include "monitor.h"
#include "sync.h"
#include "wal.h"

#include "libs/function/function.h"

#ifdef __cplusplus
extern "C" {
#endif

#define dFatal(...) { if (dDebugFlag & DEBUG_FATAL) { taosPrintLog("DND FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }}
#define dError(...) { if (dDebugFlag & DEBUG_ERROR) { taosPrintLog("DND ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }}
#define dWarn(...)  { if (dDebugFlag & DEBUG_WARN)  { taosPrintLog("DND WARN ", DEBUG_WARN, 255, __VA_ARGS__); }}
#define dInfo(...)  { if (dDebugFlag & DEBUG_INFO)  { taosPrintLog("DND ", DEBUG_INFO, 255, __VA_ARGS__); }}
#define dDebug(...) { if (dDebugFlag & DEBUG_DEBUG) { taosPrintLog("DND ", DEBUG_DEBUG, dDebugFlag, __VA_ARGS__); }}
#define dTrace(...) { if (dDebugFlag & DEBUG_TRACE) { taosPrintLog("DND ", DEBUG_TRACE, dDebugFlag, __VA_ARGS__); }}

typedef enum {
  DNODE = 0,
  MNODE = 1,
  VNODE = 2,
  QNODE = 3,
  SNODE = 4,
  BNODE = 5,
  NODE_END = 6,
} EDndNodeType;

typedef enum {
  DND_STAT_INIT,
  DND_STAT_RUNNING,
  DND_STAT_STOPPED,
} EDndRunStatus;

typedef enum {
  DND_ENV_INIT,
  DND_ENV_READY,
  DND_ENV_CLEANUP,
} EDndEnvStatus;

typedef enum {
  DND_PROC_SINGLE,
  DND_PROC_CHILD,
  DND_PROC_PARENT,
  DND_PROC_TEST,
} EDndProcType;

typedef enum {
  DND_FUNC_REQ = 1,
  DND_FUNC_RSP = 2,
  DND_FUNC_REGIST = 3,
  DND_FUNC_RELEASE = 4,
} EProcFuncType;

typedef int32_t (*ProcessCreateNodeFp)(EDndNodeType ntype, SRpcMsg *pMsg);
typedef int32_t (*ProcessDropNodeFp)(EDndNodeType ntype, SRpcMsg *pMsg);
typedef void (*SendMonitorReportFp)();
typedef void (*GetVnodeLoadsFp)();
typedef void (*GetMnodeLoadsFp)();

typedef struct {
  int32_t        dnodeId;
  int64_t        clusterId;
  int64_t        dnodeVer;
  int64_t        updateTime;
  int64_t        rebootTime;
  bool           dropped;
  bool           stopped;
  SEpSet         mnodeEps;
  SArray        *dnodeEps;
  SHashObj      *dnodeHash;
  TdThreadRwlock lock;
  SMsgCb         msgCb;
} SDnodeData;

typedef struct {
  const char         *path;
  const char         *name;
  SDnodeData         *pData;
  SMsgCb              msgCb;
  ProcessCreateNodeFp processCreateNodeFp;
  ProcessDropNodeFp   processDropNodeFp;
  SendMonitorReportFp sendMonitorReportFp;
  GetVnodeLoadsFp     getVnodeLoadsFp;
  GetMnodeLoadsFp     getMnodeLoadsFp;
} SMgmtInputOpt;

typedef struct {
  void *pMgmt;
} SMgmtOutputOpt;

typedef int32_t (*NodeMsgFp)(void *pMgmt, SRpcMsg *pMsg);
typedef int32_t (*NodeOpenFp)(SMgmtInputOpt *pInput, SMgmtOutputOpt *pOutput);
typedef void (*NodeCloseFp)(void *pMgmt);
typedef int32_t (*NodeStartFp)(void *pMgmt);
typedef void (*NodeStopFp)(void *pMgmt);
typedef int32_t (*NodeCreateFp)(const SMgmtInputOpt *pInput, SRpcMsg *pMsg);
typedef int32_t (*NodeDropFp)(const SMgmtInputOpt *pInput, SRpcMsg *pMsg);
typedef int32_t (*NodeRequireFp)(const SMgmtInputOpt *pInput, bool *required);
typedef SArray *(*NodeGetHandlesFp)();  // array of SMgmtHandle

typedef struct {
  NodeOpenFp       openFp;
  NodeCloseFp      closeFp;
  NodeStartFp      startFp;
  NodeStopFp       stopFp;
  NodeCreateFp     createFp;
  NodeDropFp       dropFp;
  NodeRequireFp    requiredFp;
  NodeGetHandlesFp getHandlesFp;
} SMgmtFunc;

typedef struct {
  tmsg_t    msgType;
  bool      needCheckVgId;
  NodeMsgFp msgFp;
} SMgmtHandle;

// dmUtil.c
const char *dmStatStr(EDndRunStatus stype);
const char *dmNodeLogName(EDndNodeType ntype);
const char *dmNodeProcName(EDndNodeType ntype);
const char *dmNodeName(EDndNodeType ntype);
const char *dmProcStr(EDndProcType ptype);
const char *dmFuncStr(EProcFuncType etype);
void       *dmSetMgmtHandle(SArray *pArray, tmsg_t msgType, void *nodeMsgFp, bool needCheckVgId);
void        dmGetMonitorSystemInfo(SMonSysInfo *pInfo);

// dmFile.c
int32_t   dmReadFile(const char *path, const char *name, bool *pDeployed);
int32_t   dmWriteFile(const char *path, const char *name, bool deployed);
TdFilePtr dmCheckRunning(const char *dataDir);
int32_t   dmReadShmFile(const char *path, const char *name, EDndNodeType runType, SShm *pShm);
int32_t   dmWriteShmFile(const char *path, const char *name, const SShm *pShm);

// dmEps.c
int32_t dmReadEps(SDnodeData *pData);
int32_t dmWriteEps(SDnodeData *pData);
void    dmUpdateEps(SDnodeData *pData, SArray *pDnodeEps);
void    dmGetMnodeEpSet(SDnodeData *pData, SEpSet *pEpSet);
void    dmGetMnodeEpSetForRedirect(SDnodeData *pData, SRpcMsg *pMsg, SEpSet *pEpSet);
void    dmSetMnodeEpSet(SDnodeData *pData, SEpSet *pEpSet);

#ifdef __cplusplus
}
#endif

#endif /*_TD_DM_INT_H_*/