/*
 * 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_BUILDINS_H_
#define _TD_BUILDINS_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "functionMgtInt.h"

typedef int32_t (*FTranslateFunc)(SFunctionNode* pFunc, char* pErrBuf, int32_t len);
typedef EFuncDataRequired (*FFuncDataRequired)(SFunctionNode* pFunc, STimeWindow* pTimeWindow);
typedef int32_t (*FCreateMergeFuncParameters)(SNodeList* pRawParameters, SNode* pPartialRes, SNodeList** pParameters);
typedef EFuncDataRequired (*FFuncDynDataRequired)(void* pRes, STimeWindow* pTimeWindow);
typedef EFuncReturnRows (*FEstimateReturnRows)(SFunctionNode* pFunc);

typedef struct SBuiltinFuncDefinition {
  const char*                name;
  EFunctionType              type;
  uint64_t                   classification;
  FTranslateFunc             translateFunc;
  FFuncDataRequired          dataRequiredFunc;
  FFuncDynDataRequired       dynDataRequiredFunc;
  FExecGetEnv                getEnvFunc;
  FExecInit                  initFunc;
  FExecProcess               processFunc;
  FScalarExecProcess         sprocessFunc;
  FExecFinalize              finalizeFunc;
  FExecProcess               invertFunc;
  FExecCombine               combineFunc;
  const char*                pPartialFunc;
  const char*                pMergeFunc;
  FCreateMergeFuncParameters createMergeParaFuc;
  FEstimateReturnRows        estimateReturnRowsFunc;
} SBuiltinFuncDefinition;

extern const SBuiltinFuncDefinition funcMgtBuiltins[];
extern const int                    funcMgtBuiltinsNum;

#ifdef __cplusplus
}
#endif

#endif /*_TD_BUILDINS_H_*/
