/*
 * 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 TDENGINE_TAOS_DEF_H
#define TDENGINE_TAOS_DEF_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <stdbool.h>

#define TSDB__packed

#ifdef TSKEY32
#define TSKEY int32_t;
#else
#define TSKEY int64_t
#endif

// Data type definition
#define TSDB_DATA_TYPE_NULL       0     // 1 bytes
#define TSDB_DATA_TYPE_BOOL       1     // 1 bytes
#define TSDB_DATA_TYPE_TINYINT    2     // 1 byte
#define TSDB_DATA_TYPE_SMALLINT   3     // 2 bytes
#define TSDB_DATA_TYPE_INT        4     // 4 bytes
#define TSDB_DATA_TYPE_BIGINT     5     // 8 bytes
#define TSDB_DATA_TYPE_FLOAT      6     // 4 bytes
#define TSDB_DATA_TYPE_DOUBLE     7     // 8 bytes
#define TSDB_DATA_TYPE_BINARY     8     // string
#define TSDB_DATA_TYPE_TIMESTAMP  9     // 8 bytes
#define TSDB_DATA_TYPE_NCHAR      10    // unicode string

// Bytes for each type.
extern const int32_t TYPE_BYTES[11];
// TODO: replace and remove code below
#define CHAR_BYTES   sizeof(char)
#define SHORT_BYTES  sizeof(short)
#define INT_BYTES    sizeof(int)
#define LONG_BYTES   sizeof(int64_t)
#define FLOAT_BYTES  sizeof(float)
#define DOUBLE_BYTES sizeof(double)

// NULL definition
#define TSDB_DATA_BOOL_NULL             0x02
#define TSDB_DATA_TINYINT_NULL          0x80
#define TSDB_DATA_SMALLINT_NULL         0x8000
#define TSDB_DATA_INT_NULL              0x80000000
#define TSDB_DATA_BIGINT_NULL           0x8000000000000000L

#define TSDB_DATA_FLOAT_NULL            0x7FF00000              // it is an NAN
#define TSDB_DATA_DOUBLE_NULL           0x7FFFFF0000000000L     // an NAN
#define TSDB_DATA_NCHAR_NULL            0xFFFFFFFF
#define TSDB_DATA_BINARY_NULL           0xFF

#define TSDB_DATA_NULL_STR              "NULL"
#define TSDB_DATA_NULL_STR_L            "null"

#define TSDB_TRUE 1
#define TSDB_FALSE 0
#define TSDB_OK 0
#define TSDB_ERR -1

#define TS_PATH_DELIMITER "."

#define TSDB_TIME_PRECISION_MILLI 0
#define TSDB_TIME_PRECISION_MICRO 1

#define TSDB_TIME_PRECISION_MILLI_STR "ms"
#define TSDB_TIME_PRECISION_MICRO_STR "us"

#define T_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
#define T_APPEND_MEMBER(dst, ptr, type, member) \
do {\
  memcpy((void *)(dst), (void *)(&((ptr)->member)), T_MEMBER_SIZE(type, member));\
  dst = (void *)((char *)(dst) + T_MEMBER_SIZE(type, member));\
} while(0)
#define T_READ_MEMBER(src, type, target) \
do { \
  (target) = *(type *)(src); \
  (src) = (void *)((char *)src + sizeof(type));\
} while(0)

#define TSDB_KEYSIZE              sizeof(TSKEY)

#if LINUX
  #define TSDB_NCHAR_SIZE         sizeof(wchar_t)
#else
  #define TSDB_NCHAR_SIZE         4
#endif
//#define TSDB_CHAR_TERMINATED_SPACE 1

#define GET_INT8_VAL(x)   (*(int8_t *)(x))
#define GET_INT16_VAL(x)  (*(int16_t *)(x))
#define GET_INT32_VAL(x)  (*(int32_t *)(x))
#define GET_INT64_VAL(x)  (*(int64_t *)(x))
#ifdef _TD_ARM_32_
  #define GET_FLOAT_VAL(x)  taos_align_get_float(x)
  #define GET_DOUBLE_VAL(x) taos_align_get_double(x)

  float  taos_align_get_float(const char* pBuf);
  double taos_align_get_double(const char* pBuf);

  //#define __float_align_declear()  float __underlyFloat = 0.0;
  //#define __float_align_declear()
  //#define GET_FLOAT_VAL_ALIGN(x) (*(int32_t*)&(__underlyFloat) = *(int32_t*)(x); __underlyFloat);
  // notes: src must be float or double type variable !!!
  #define SET_FLOAT_VAL_ALIGN(dst, src) (*(int32_t*) dst = *(int32_t*)src);
  #define SET_DOUBLE_VAL_ALIGN(dst, src) (*(int64_t*) dst = *(int64_t*)src);
#else
  #define GET_FLOAT_VAL(x)  (*(float *)(x))
  #define GET_DOUBLE_VAL(x) (*(double *)(x))
#endif

typedef struct tDataTypeDescriptor {
  int16_t nType;
  int16_t nameLen;
  int32_t nSize;
  char *  aName;
} tDataTypeDescriptor;

extern tDataTypeDescriptor tDataTypeDesc[11];
#define POINTER_BYTES sizeof(void *)  // 8 by default  assert(sizeof(ptrdiff_t) == sizseof(void*)

bool isValidDataType(int32_t type, int32_t length);
bool isNull(const char *val, int32_t type);

void setNull(char *val, int32_t type, int32_t bytes);
void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems);

void assignVal(char *val, const char *src, int32_t len, int32_t type);
void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);

// TODO: check if below is necessary
#define TSDB_RELATION_INVALID     0
#define TSDB_RELATION_LESS        1
#define TSDB_RELATION_LARGE       2
#define TSDB_RELATION_EQUAL       3
#define TSDB_RELATION_LESS_EQUAL  4
#define TSDB_RELATION_LARGE_EQUAL 5
#define TSDB_RELATION_NOT_EQUAL   6
#define TSDB_RELATION_LIKE        7

#define TSDB_RELATION_AND         8
#define TSDB_RELATION_OR          9
#define TSDB_RELATION_NOT         10

#define TSDB_BINARY_OP_ADD        11
#define TSDB_BINARY_OP_SUBTRACT   12
#define TSDB_BINARY_OP_MULTIPLY   13
#define TSDB_BINARY_OP_DIVIDE     14
#define TSDB_BINARY_OP_REMAINDER  15
#define TSDB_USERID_LEN           9
#define TS_PATH_DELIMITER_LEN     1

#define TSDB_METER_ID_LEN_MARGIN  10
#define TSDB_TABLE_ID_LEN         (TSDB_DB_NAME_LEN+TSDB_TABLE_NAME_LEN+2*TS_PATH_DELIMITER_LEN+TSDB_USERID_LEN+TSDB_METER_ID_LEN_MARGIN) //TSDB_DB_NAME_LEN+TSDB_TABLE_NAME_LEN+2*strlen(TS_PATH_DELIMITER)+strlen(USERID)
#define TSDB_UNI_LEN              24
#define TSDB_USER_LEN             TSDB_UNI_LEN
#define TSDB_ACCT_LEN             TSDB_UNI_LEN
#define TSDB_PASSWORD_LEN         TSDB_UNI_LEN

#define TSDB_MAX_COLUMNS          256
#define TSDB_MIN_COLUMNS          2       //PRIMARY COLUMN(timestamp) + other columns

#define TSDB_DNODE_NAME_LEN       63
#define TSDB_TABLE_NAME_LEN       192
#define TSDB_DB_NAME_LEN          32
#define TSDB_COL_NAME_LEN         64
#define TSDB_MAX_SAVED_SQL_LEN    TSDB_MAX_COLUMNS * 16
#define TSDB_MAX_SQL_LEN          TSDB_PAYLOAD_SIZE
#define TSDB_MAX_ALLOWED_SQL_LEN  (8*1024*1024U)          // sql length should be less than 6mb

#define TSDB_MAX_BYTES_PER_ROW    TSDB_MAX_COLUMNS * 16
#define TSDB_MAX_TAGS_LEN         512
#define TSDB_MAX_TAGS             32

#define TSDB_AUTH_LEN             16
#define TSDB_KEY_LEN              16
#define TSDB_VERSION_LEN          12
#define TSDB_STREET_LEN           64
#define TSDB_CITY_LEN             20
#define TSDB_STATE_LEN            20
#define TSDB_COUNTRY_LEN          20
#define TSDB_VNODES_SUPPORT       6
#define TSDB_MGMT_SUPPORT         4
#define TSDB_LOCALE_LEN           64
#define TSDB_TIMEZONE_LEN         64

#define TSDB_IPv4ADDR_LEN      	  16
#define TSDB_FILENAME_LEN         128
#define TSDB_METER_VNODE_BITS     20
#define TSDB_METER_SID_MASK       0xFFFFF
#define TSDB_SHELL_VNODE_BITS     24
#define TSDB_SHELL_SID_MASK       0xFF
#define TSDB_HTTP_TOKEN_LEN       20
#define TSDB_SHOW_SQL_LEN         32

#define TSDB_METER_STATE_OFFLINE  0
#define TSDB_METER_STATE_ONLLINE  1

#define TSDB_DEFAULT_PKT_SIZE     65480  //same as RPC_MAX_UDP_SIZE

#define TSDB_PAYLOAD_SIZE         (TSDB_DEFAULT_PKT_SIZE - 100)
#define TSDB_DEFAULT_PAYLOAD_SIZE 1024   // default payload size
#define TSDB_EXTRA_PAYLOAD_SIZE   128    // extra bytes for auth
#define TSDB_SQLCMD_SIZE          1024
#define TSDB_MAX_VNODES           256
#define TSDB_MIN_VNODES           50
#define TSDB_INVALID_VNODE_NUM    0

#define TSDB_DNODE_ROLE_ANY       0
#define TSDB_DNODE_ROLE_MGMT      1
#define TSDB_DNODE_ROLE_VNODE     2

#define TSDB_MAX_MPEERS           5
#define TSDB_MAX_MGMT_IPS         (TSDB_MAX_MPEERS+1)

#define TSDB_REPLICA_MIN_NUM      1
/*
 * this is defined in CMakeList.txt
 */
//#define TSDB_REPLICA_MAX_NUM      3

#define TSDB_TBNAME_COLUMN_INDEX       (-1)
#define TSDB_MULTI_METERMETA_MAX_NUM    100000  // maximum batch size allowed to load metermeta

//default value == 10
#define TSDB_FILE_MIN_PARTITION_RANGE   1         //minimum partition range of vnode file in days
#define TSDB_FILE_MAX_PARTITION_RANGE   3650      //max partition range of vnode file in days

#define TSDB_DATA_MIN_RESERVE_DAY       1        // data in db to be reserved.
#define TSDB_DATA_DEFAULT_RESERVE_DAY   3650     // ten years

#define TSDB_MIN_COMPRESSION_LEVEL      0
#define TSDB_MAX_COMPRESSION_LEVEL      2

#define TSDB_MIN_COMMIT_TIME_INTERVAL   30
#define TSDB_MAX_COMMIT_TIME_INTERVAL   40960

#define TSDB_MIN_ROWS_IN_FILEBLOCK      200
#define TSDB_MAX_ROWS_IN_FILEBLOCK      500000

#define TSDB_MIN_CACHE_BLOCK_SIZE       100
#define TSDB_MAX_CACHE_BLOCK_SIZE       104857600

#define TSDB_MIN_CACHE_BLOCKS           100
#define TSDB_MAX_CACHE_BLOCKS           409600

#define TSDB_MIN_AVG_BLOCKS             2
#define TSDB_MAX_AVG_BLOCKS             2048
#define TSDB_DEFAULT_AVG_BLOCKS         4

/*
 * There is a bug in function taosAllocateId.
 * When "create database tables 1" is executed, the wrong sid is assigned, so the minimum value is set to 2.
 */
#define TSDB_MIN_TABLES_PER_VNODE       2
#define TSDB_MAX_TABLES_PER_VNODE       220000

#define TSDB_MAX_JOIN_TABLE_NUM         5
#define TSDB_MAX_UNION_CLAUSE           5

#define TSDB_MAX_BINARY_LEN            (TSDB_MAX_BYTES_PER_ROW-TSDB_KEYSIZE)
#define TSDB_MAX_NCHAR_LEN             (TSDB_MAX_BYTES_PER_ROW-TSDB_KEYSIZE)
#define PRIMARYKEY_TIMESTAMP_COL_INDEX  0

#define TSDB_MAX_RPC_THREADS            5

#define TSDB_QUERY_TYPE_NON_TYPE                       0x00U     // none type
#define TSDB_QUERY_TYPE_FREE_RESOURCE                  0x01U     // free qhandle at vnode

/*
 * 1. ordinary sub query for select * from super_table
 * 2. all sqlobj generated by createSubqueryObj with this flag
 */
#define TSDB_QUERY_TYPE_SUBQUERY                       0x02U
#define TSDB_QUERY_TYPE_STABLE_SUBQUERY                0x04U     // two-stage subquery for super table

#define TSDB_QUERY_TYPE_TABLE_QUERY                    0x08U     // query ordinary table; below only apply to client side
#define TSDB_QUERY_TYPE_STABLE_QUERY                   0x10U    // query on super table
#define TSDB_QUERY_TYPE_JOIN_QUERY                     0x20U    // join query
#define TSDB_QUERY_TYPE_PROJECTION_QUERY               0x40U    // select *,columns... query
#define TSDB_QUERY_TYPE_JOIN_SEC_STAGE                 0x80U    // join sub query at the second stage

#define TSDB_QUERY_TYPE_INSERT                        0x100U    // insert type
#define TSDB_QUERY_TYPE_IMPORT                        0x200U    // import data

#define TSDB_QUERY_HAS_TYPE(x, _type)         (((x) & (_type)) != 0)
#define TSDB_QUERY_SET_TYPE(x, _type)         ((x) |= (_type))
#define TSDB_QUERY_RESET_TYPE(x)              ((x) = TSDB_QUERY_TYPE_NON_TYPE)

#define TSQL_SO_ASC   1
#define TSQL_SO_DESC  0

#define TSDB_SESSIONS_PER_VNODE (300)
#define TSDB_SESSIONS_PER_DNODE (TSDB_SESSIONS_PER_VNODE * TSDB_MAX_VNODES)

enum {
  TSDB_PRECISION_MILLI,
  TSDB_PRECISION_MICRO,
  TSDB_PRECISION_NANO
};

typedef enum {
  TSDB_SUPER_TABLE        = 0,  // super table
  TSDB_CHILD_TABLE        = 1,  // table created from super table
  TSDB_NORMAL_TABLE       = 2,  // ordinary table
  TSDB_STREAM_TABLE       = 3,  // table created from stream computing
  TSDB_TABLE_MAX          = 4
} TSDB_TABLE_TYPE;

#ifdef __cplusplus
}
#endif

#endif
