/*
 * 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 _TSDB_FILE_SET_H
#define _TSDB_FILE_SET_H

#include "tsdb.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct SSttLevel SSttLevel;

typedef enum {
  TSDB_FOP_EXTEND = -2,
  TSDB_FOP_CREATE,
  TSDB_FOP_NONE,
  TSDB_FOP_DELETE,
  TSDB_FOP_TRUNCATE,
} tsdb_fop_t;

struct SFileOp {
  tsdb_fop_t    op;
  int32_t       fid;
  struct STFile oState;  // old file state
  struct STFile nState;  // new file state
};

struct SSttLevel {
  int32_t        level;
  int32_t        nStt;
  SSttLevel     *pNext;
  struct STFile *fSttList;
};

struct SFileSet {
  int32_t        fid;
  int64_t        nextid;
  struct STFile *fHead;  // .head
  struct STFile *fData;  // .data
  struct STFile *fSma;   // .sma
  struct STFile *fTomb;  // .tomb
  SSttLevel     *sttLevelList;
};

int32_t tsdbFileSetCreate(int32_t fid, struct SFileSet **ppSet);
int32_t tsdbFileSetEdit(struct SFileSet *pSet, struct SFileOp *pOp);
int32_t tsdbFileSetToJson(SJson *pJson, const struct SFileSet *pSet);
int32_t tsdbEditFileSet(struct SFileSet *pFileSet, const struct SFileOp *pOp);

#ifdef __cplusplus
}
#endif

#endif /*_TSDB_FILE_SET_H*/