/*-------------------------------------------------------------------------
 *
 * pg_version_compat.h
 *	  Compatibility macros for writing code agnostic to PostgreSQL versions
 *
 * Copyright (c) Citus Data, Inc.
 *
 *-------------------------------------------------------------------------
 */

#ifndef PG_VERSION_COMPAT_H
#define PG_VERSION_COMPAT_H

#include "distributed/pg_version_constants.h"

#if PG_VERSION_NUM >= PG_VERSION_15
#define ProcessCompletedNotifies()
#define RelationCreateStorage_compat(a, b, c) RelationCreateStorage(a, b, c)
#define parse_analyze_varparams_compat(a, b, c, d, e) parse_analyze_varparams(a, b, c, d, \
																			  e)
#define CREATE_SEQUENCE_COMMAND \
	"CREATE %sSEQUENCE IF NOT EXISTS %s AS %s INCREMENT BY " INT64_FORMAT \
	" MINVALUE " INT64_FORMAT " MAXVALUE " INT64_FORMAT \
	" START WITH " INT64_FORMAT " CACHE " INT64_FORMAT " %sCYCLE"
#else

#include "nodes/value.h"
#include "storage/smgr.h"
#include "utils/int8.h"
#include "utils/rel.h"

typedef Value String;

#ifdef HAVE_LONG_INT_64
#define strtoi64(str, endptr, base) ((int64) strtol(str, endptr, base))
#define strtou64(str, endptr, base) ((uint64) strtoul(str, endptr, base))
#else
#define strtoi64(str, endptr, base) ((int64) strtoll(str, endptr, base))
#define strtou64(str, endptr, base) ((uint64) strtoull(str, endptr, base))
#endif
#define RelationCreateStorage_compat(a, b, c) RelationCreateStorage(a, b)
#define parse_analyze_varparams_compat(a, b, c, d, e) parse_analyze_varparams(a, b, c, d)
#define pgstat_init_relation(r) pgstat_initstats(r)
#define pg_analyze_and_rewrite_fixedparams(a, b, c, d, e) pg_analyze_and_rewrite(a, b, c, \
																				 d, e)
#define boolVal(v) intVal(v)
#define makeBoolean(val) makeInteger(val)

static inline int64
pg_strtoint64(char *s)
{
	int64 result;
	(void) scanint8(s, false, &result);
	return result;
}


/*
 * RelationGetSmgr got backported in 13.10 and 14.7 so redefining it for any
 * version higher causes compilation errors due to redefining of the function.
 * We want to use it in all versions. So we backport it ourselves in earlier
 * versions, and rely on the Postgres provided version in the later versions.
 */
#if PG_VERSION_NUM < 140007
static inline SMgrRelation
RelationGetSmgr(Relation rel)
{
	if (unlikely(rel->rd_smgr == NULL))
	{
		smgrsetowner(&(rel->rd_smgr), smgropen(rel->rd_node, rel->rd_backend));
	}
	return rel->rd_smgr;
}


#endif


#define CREATE_SEQUENCE_COMMAND \
	"CREATE SEQUENCE IF NOT EXISTS %s AS %s INCREMENT BY " INT64_FORMAT \
	" MINVALUE " INT64_FORMAT " MAXVALUE " INT64_FORMAT \
	" START WITH " INT64_FORMAT " CACHE " INT64_FORMAT " %sCYCLE"

#endif

#define SetListCellPtr(a, b) ((a)->ptr_value = (b))
#define RangeTableEntryFromNSItem(a) ((a)->p_rte)
#define fcGetArgValue(fc, n) ((fc)->args[n].value)
#define fcGetArgNull(fc, n) ((fc)->args[n].isnull)
#define fcSetArgExt(fc, n, val, is_null) \
	(((fc)->args[n].isnull = (is_null)), ((fc)->args[n].value = (val)))
#define fcSetArg(fc, n, value) fcSetArgExt(fc, n, value, false)
#define fcSetArgNull(fc, n) fcSetArgExt(fc, n, (Datum) 0, true)

#endif   /* PG_VERSION_COMPAT_H */