/*
 * 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_H
#define _TSDB_FILE_H

#include "tsdbDef.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct STFile STFile;

typedef enum {
  TSDB_FTYPE_HEAD = 0,  // .head
  TSDB_FTYPE_DATA,      // .data
  TSDB_FTYPE_SMA,       // .sma
  TSDB_FTYPE_TOMB,      // .tomb
  TSDB_FTYPE_MAX,       // max
  TSDB_FTYPE_STT,       // .stt
} tsdb_ftype_t;

int32_t tsdbTFileCreate(const struct STFile *config, struct STFile **ppFile);
int32_t tsdbTFileDestroy(struct STFile *pFile);
int32_t tsdbTFileInit(STsdb *pTsdb, struct STFile *pFile);
int32_t tsdbTFileClear(struct STFile *pFile);

struct STFile {
  char         fname[TSDB_FILENAME_LEN];
  int32_t      ref;
  int32_t      state;
  tsdb_ftype_t type;
  SDiskID      did;
  int64_t      size;
  int64_t      cid;
  int32_t      fid;
  union {
    struct {
      int32_t level;  // level of .stt
      int32_t nSeg;   // number of segments in .stt
    } stt;
    struct {
      // TODO
    } head;
    struct {
      // TODO
    } data;
    struct {
      // TODO
    } sma;
    struct {
      // TODO
    } tomb;
  };

  LISTD(struct STFile) listNode;
};

#ifdef __cplusplus
}
#endif

#endif /*_TSDB_FILE_H*/