/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#pragma once

#include "sbxdec.hxx"
#include <basic/sberrors.hxx>
#include <basic/sbx.hxx>
#include <basic/sbxcore.hxx>
#include <basic/sbxdef.hxx>

#include <o3tl/float_int_conversion.hxx>
#include <o3tl/safeint.hxx>
#include <rtl/math.hxx>
#include <sal/types.h>

class SbxArray;

template <typename I> inline I DoubleTo(double f, I min, I max)
{
    f = rtl::math::round(f);
    if (!o3tl::convertsToAtMost(f, max))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return max;
    }
    if (!o3tl::convertsToAtLeast(f, min))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return min;
    }
    return f;
}

inline auto ImpDoubleToChar(double f) { return DoubleTo<sal_Unicode>(f, SbxMINCHAR, SbxMAXCHAR); }
inline auto ImpDoubleToByte(double f) { return DoubleTo<sal_uInt8>(f, 0, SbxMAXBYTE); }
inline auto ImpDoubleToUShort(double f) { return DoubleTo<sal_uInt16>(f, 0, SbxMAXUINT); }
inline auto ImpDoubleToInteger(double f) { return DoubleTo<sal_Int16>(f, SbxMININT, SbxMAXINT); }
inline auto ImpDoubleToULong(double f) { return DoubleTo<sal_uInt32>(f, 0, SbxMAXULNG); }
inline auto ImpDoubleToLong(double f) { return DoubleTo<sal_Int32>(f, SbxMINLNG, SbxMAXLNG); }
inline auto ImpDoubleToSalUInt64(double d) { return DoubleTo<sal_uInt64>(d, 0, SAL_MAX_UINT64); }
inline auto ImpDoubleToSalInt64(double d)
{
    return DoubleTo<sal_Int64>(d, SAL_MIN_INT64, SAL_MAX_INT64);
}

// SBXSCAN.CXX
extern void ImpCvtNum( double nNum, short nPrec, OUString& rRes, bool bCoreString=false );
extern ErrCode ImpScan
    ( std::u16string_view rSrc, double& nVal, SbxDataType& rType, sal_uInt16* pLen,
      bool* pHasNumber, bool bOnlyIntntl );
// A version that uses defaults / compatibility settings for bOnlyIntntl
extern ErrCode ImpScan
    ( std::u16string_view rSrc, double& nVal, SbxDataType& rType, sal_uInt16* pLen );

void ImpGetIntntlSep( sal_Unicode& rcDecimalSep, sal_Unicode& rcThousandSep, sal_Unicode& rcDecimalSepAlt );

// SBXINT.CXX

sal_Int16   ImpGetInteger( const SbxValues* );
void        ImpPutInteger( SbxValues*, sal_Int16 );

sal_Int64   ImpGetInt64( const SbxValues* );
void        ImpPutInt64( SbxValues*, sal_Int64 );
sal_uInt64  ImpGetUInt64( const SbxValues* );
void        ImpPutUInt64( SbxValues*, sal_uInt64 );

double      ImpSalUInt64ToDouble( sal_uInt64 n );

// SBXLNG.CXX

sal_Int32   ImpGetLong( const SbxValues* );
void    ImpPutLong( SbxValues*, sal_Int32 );

// SBXSNG.CXX

float   ImpGetSingle( const SbxValues* );
void    ImpPutSingle( SbxValues*, float );

// SBXDBL.CXX

double  ImpGetDouble( const SbxValues* );
void    ImpPutDouble( SbxValues*, double, bool bCoreString=false );

// SBXCURR.CXX

sal_Int64   ImpGetCurrency( const SbxValues* );
void        ImpPutCurrency( SbxValues*, const sal_Int64 );

inline  sal_Int64   ImpDoubleToCurrency( double d )
{
    double result = d > 0 ? (d * CURRENCY_FACTOR + 0.5) : (d * CURRENCY_FACTOR - 0.5);
    if (result >= double(SAL_MAX_INT64)) // double(SAL_MAX_INT64) is greater than SAL_MAX_INT64
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return SAL_MAX_INT64;
    }
    if (result < double(SAL_MIN_INT64))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return SAL_MIN_INT64;
    }
    return result;
}

template <typename I>
    requires std::is_integral_v<I>
inline sal_Int64 CurFrom(I n)
{
    using ValidRange = o3tl::ValidRange<sal_Int64, SAL_MIN_INT64 / CURRENCY_FACTOR, SAL_MAX_INT64 / CURRENCY_FACTOR>;
    if (ValidRange::isAbove(n))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return SAL_MAX_INT64;
    }
    if (ValidRange::isBelow(n))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return SAL_MIN_INT64;
    }
    return n * CURRENCY_FACTOR;
}

inline double ImpCurrencyToDouble(sal_Int64 r) { return static_cast<double>(r) / CURRENCY_FACTOR; }

template <typename I>
    requires std::is_integral_v<I>
inline I CurTo(sal_Int64 cur_val)
{
    sal_Int64 i = CurTo<sal_Int64>(cur_val);
    if (o3tl::ValidRange<I>::isAbove(i))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return std::numeric_limits<I>::max();
    }
    if (o3tl::ValidRange<I>::isBelow(i))
    {
        SbxBase::SetError(ERRCODE_BASIC_MATH_OVERFLOW);
        return std::numeric_limits<I>::min();
    }
    return i;
}

template <> inline sal_Int64 CurTo<sal_Int64>(sal_Int64 cur_val)
{
    sal_Int64 i = cur_val / CURRENCY_FACTOR;
    // Rounding (half-to-even)
    int f = cur_val % CURRENCY_FACTOR;
    if (i % 2 == 1)
    {
        if (f < 0)
            --f;
        else
            ++f;
    }
    if (f > CURRENCY_FACTOR / 2)
        ++i;
    else if (f < -CURRENCY_FACTOR / 2)
        --i;
    return i;
}


// SBXDEC.CXX

SbxDecimal* ImpCreateDecimal( SbxValues* p );
SbxDecimal* ImpGetDecimal( const SbxValues* p );
void ImpPutDecimal( SbxValues* p, SbxDecimal* pDec );

// SBXDATE.CXX

double  ImpGetDate( const SbxValues* );
void    ImpPutDate( SbxValues*, double );

// SBXSTR.CXX

OUString     ImpGetString( const SbxValues* );
OUString     ImpGetCoreString( const SbxValues* );
void    ImpPutString( SbxValues*, const OUString* );

// SBXCHAR.CXX

sal_Unicode ImpGetChar( const SbxValues* );
void        ImpPutChar( SbxValues*, sal_Unicode );

// SBXBYTE.CXX
sal_uInt8   ImpGetByte( const SbxValues* );
void    ImpPutByte( SbxValues*, sal_uInt8 );

// SBXUINT.CXX

sal_uInt16  ImpGetUShort( const SbxValues* );
void    ImpPutUShort( SbxValues*, sal_uInt16 );

// SBXULNG.CXX

sal_uInt32  ImpGetULong( const SbxValues* );
void    ImpPutULong( SbxValues*, sal_uInt32 );

// SBXBOOL.CXX

enum SbxBOOL ImpGetBool( const SbxValues* );
void    ImpPutBool( SbxValues*, sal_Int16 );

// ByteArray <--> String
SbxArray* StringToByteArray(const OUString& rStr);
OUString ByteArrayToString(SbxArray* pArr);

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
