/*
 * FiveSqlDef.ch — Shared constant definitions for FiveSql engine
 *
 * Copyright (c) 2025 Charles KWON (Charles KWON OhJun)
 * Email: charleskwonohjun@gmail.com
 *
 * All rights reserved.
 */

#ifndef FIVESQLDEF_CH
#define FIVESQLDEF_CH

/* Token types produced by the lexical analyzer */
#define TK_END        0     /* End of input */
#define TK_NAME       1     /* Identifier or keyword */
#define TK_TEXT       2     /* String literal */
#define TK_NUM        3     /* Numeric literal */
#define TK_COMMA      4     /* , */
#define TK_DOT        5     /* . */
#define TK_STAR       6     /* * */
#define TK_LPAR       7     /* ( */
#define TK_RPAR       8     /* ) */
#define TK_EQ         9     /* = */
#define TK_NEQ       10     /* <> or != */
#define TK_LT        11     /* < */
#define TK_GT        12     /* > */
#define TK_LTE       13     /* <= */
#define TK_GTE       14     /* >= */
#define TK_QMARK     15     /* ? (parameter placeholder) */
#define TK_PLUS      16     /* + */
#define TK_MINUS     17     /* - */
#define TK_SLASH     18     /* / */
#define TK_PIPES     19     /* || (string concatenation) */

/* Token array element indices */
#define TK_TYPE       1
#define TK_VALUE      2

/* Expression AST node types */
#define ND_LIT        1     /* Literal value */
#define ND_COL        2     /* Column reference */
#define ND_FN         3     /* Function call */
#define ND_BIN        4     /* Binary operation */
#define ND_UNI        5     /* Unary operation */
#define ND_CASE       6     /* CASE expression */
#define ND_SUB        7     /* Subquery */
#define ND_LIST       8     /* Value list */
#define ND_PAR        9     /* Bound parameter */
#define ND_NIL       10     /* NULL value */
#define ND_RANGE     11     /* BETWEEN range */
#define ND_WINDOW    12     /* Window function */
#define ND_FRAME     13     /* Window frame specification */
#define ND_LATERAL   14     /* LATERAL subquery */

/* Error codes */
#define SQL_ERR_NONE          0
#define SQL_ERR_SYNTAX     1001
#define SQL_ERR_NO_TABLE   1002
#define SQL_ERR_NO_FIELD   1003
#define SQL_ERR_TYPE       1004
#define SQL_ERR_LOCKED     1005
#define SQL_ERR_GRAMMAR    1006
#define SQL_ERR_UNSUPPORTED 1007
#define SQL_ERR_TXN        1008

/* Recognized aggregate function names */
#define AGG_FUNCTIONS  "COUNT,SUM,AVG,MIN,MAX,GROUP_CONCAT,STRING_AGG,LISTAGG,JSON_ARRAYAGG,JSON_OBJECTAGG,XMLAGG,ANY_VALUE,BOOL_AND,BOOL_OR"

/* Recognized scalar function names */
#define SCALAR_FUNCTIONS "UPPER,LOWER,TRIM,LTRIM,RTRIM,SUBSTR,SUBSTRING,LEN,LENGTH,REPLACE,SPACE,REPLICATE,STUFF,CHARINDEX,CONCAT,ABS,ROUND,INT,FLOOR,CEILING,CEIL,MOD,POWER,SQRT,SIGN,YEAR,MONTH,DAY,NOW,DATE,TIME,DTOS,DTOC,CTOD,STOD,CAST,CONVERT,STR,VAL,ALLTRIM,IIF,COALESCE,NULLIF,DATEADD,DATEDIFF,EOMONTH,INSTR,REVERSE,PADL,PADR,PADC,ISNUMERIC,ISDATE,ISVALID,TYPEOF,TYPE,FORMAT,HB_HOUR,HB_MINUTE,HB_SECOND,HB_DATETIME,HB_TTOC,HB_CTOT,TIMESTAMP,ROUND_BANKER,EXISTS,EXTRACT,POSITION,OVERLAY,ARRAY,ROW,JSON_VALUE,JSON_QUERY,JSON_EXISTS,JSON_TABLE,JSON_OBJECT,JSON_ARRAY,JSON_OBJECTAGG,JSON_ARRAYAGG,XMLELEMENT,XMLFOREST,XMLAGG,GREATEST,LEAST,LPAD,RPAD,ANY_VALUE,BOOL_AND,BOOL_OR"

#endif