/* Copyright (C) 2014 InfiniDB, Inc.
   Copyright (C) 2019 MariaDB Corporation

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   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.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

/****************************************************************************
* $Id: func_between.cpp 3954 2013-07-08 16:30:15Z bpaul $
*
*
****************************************************************************/

#include <cstdlib>
#include <string>
using namespace std;

#include "functor_bool.h"
#include "functioncolumn.h"
#include "predicateoperator.h"
#include "constantcolumn.h"
using namespace execplan;

#include "rowgroup.h"

#include "errorcodes.h"
#include "idberrorinfo.h"
#include "errorids.h"


using namespace logging;

namespace
{
template<typename result_t>
inline bool numericGE(result_t op1, result_t op2)
{
    return op1 >= op2;
}

template<typename result_t>
inline bool numericLE(result_t op1, result_t op2)
{
    return op1 <= op2;
}

inline bool strGE(CHARSET_INFO &cs, const string& op1, const string& op2)
{
    return cs.strnncoll(op1.c_str(), op1.length(), op2.c_str(), op2.length()) >= 0;
}

inline bool strLE(CHARSET_INFO &cs, const string& op1, const string& op2)
{
    return cs.strnncoll(op1.c_str(), op1.length(), op2.c_str(), op2.length()) <= 0;
}

inline bool getBool(rowgroup::Row& row,
                    funcexp::FunctionParm& pm,
                    bool& isNull,
                    CalpontSystemCatalog::ColType& ct,
                    bool notBetween)
{
    switch (ct.colDataType)
    {
        case execplan::CalpontSystemCatalog::BIGINT:
        case execplan::CalpontSystemCatalog::INT:
        case execplan::CalpontSystemCatalog::MEDINT:
        case execplan::CalpontSystemCatalog::TINYINT:
        case execplan::CalpontSystemCatalog::SMALLINT:
        {
            int64_t val = pm[0]->data()->getIntVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getIntVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getIntVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getIntVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getIntVal(row, isNull)) && !isNull;
        }

        case execplan::CalpontSystemCatalog::UBIGINT:
        case execplan::CalpontSystemCatalog::UINT:
        case execplan::CalpontSystemCatalog::UMEDINT:
        case execplan::CalpontSystemCatalog::UTINYINT:
        case execplan::CalpontSystemCatalog::USMALLINT:
        {
            uint64_t val = pm[0]->data()->getUintVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getUintVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getUintVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getUintVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getUintVal(row, isNull)) && !isNull;
        }

        case execplan::CalpontSystemCatalog::DATE:
        {
            int32_t val = pm[0]->data()->getDateIntVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getDateIntVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getDateIntVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getDateIntVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getDateIntVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::DATETIME:
        {
            int64_t val = pm[0]->data()->getDatetimeIntVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getDatetimeIntVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getDatetimeIntVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getDatetimeIntVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getDatetimeIntVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::TIMESTAMP:
        {
            int64_t val = pm[0]->data()->getTimestampIntVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getTimestampIntVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getTimestampIntVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getTimestampIntVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getTimestampIntVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::TIME:
        {
            // Shift out unused day for compare
            int64_t val = pm[0]->data()->getTimeIntVal(row, isNull) << 12;

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getTimeIntVal(row, isNull) << 12) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getTimeIntVal(row, isNull) << 12) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getTimeIntVal(row, isNull) << 12) &&
                   numericLE(val, pm[2]->data()->getTimeIntVal(row, isNull) << 12);
        }

        case execplan::CalpontSystemCatalog::DOUBLE:
        case execplan::CalpontSystemCatalog::UDOUBLE:
        case execplan::CalpontSystemCatalog::FLOAT:
        case execplan::CalpontSystemCatalog::UFLOAT:
        {
            double val = pm[0]->data()->getDoubleVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getDoubleVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getDoubleVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getDoubleVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getDoubleVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::LONGDOUBLE:
        {
            long double val = pm[0]->data()->getLongDoubleVal(row, isNull);

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getLongDoubleVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getLongDoubleVal(row, isNull)) && !isNull);
            }

            return !isNull &&
                   numericGE(val, pm[1]->data()->getLongDoubleVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getLongDoubleVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::DECIMAL:
        case execplan::CalpontSystemCatalog::UDECIMAL:
        {
            IDB_Decimal val = pm[0]->data()->getDecimalVal(row, isNull);

            if (isNull)
                return false;

            if (notBetween)
            {
                if (!numericGE(val, pm[1]->data()->getDecimalVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!numericLE(val, pm[2]->data()->getDecimalVal(row, isNull)) && !isNull);
            }

            return numericGE(val, pm[1]->data()->getDecimalVal(row, isNull)) &&
                   numericLE(val, pm[2]->data()->getDecimalVal(row, isNull));
        }

        case execplan::CalpontSystemCatalog::VARCHAR: // including CHAR'
        case execplan::CalpontSystemCatalog::CHAR:
        case execplan::CalpontSystemCatalog::TEXT:
        {
            const string& val = pm[0]->data()->getStrVal(row, isNull);
            CHARSET_INFO &cs = datatypes::Charset(ct.charsetNumber).getCharset();

            if (notBetween)
            {
                if (!strGE(cs, val, pm[1]->data()->getStrVal(row, isNull)) && !isNull)
                    return true;

                isNull = false;
                return (!strLE(cs, val, pm[2]->data()->getStrVal(row, isNull)) && !isNull);
            }
            
            return !isNull &&
                   strGE(cs, val, pm[1]->data()->getStrVal(row, isNull)) &&
                   strLE(cs, val, pm[2]->data()->getStrVal(row, isNull));
        }

        default:
        {
            std::ostringstream oss;
            oss << "between: datatype of " << execplan::colDataTypeToString(ct.colDataType);
            throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
        }
    }
}

}

namespace funcexp
{

CalpontSystemCatalog::ColType Func_between::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
{
    PredicateOperator op;
    CalpontSystemCatalog::ColType ct = fp[0]->data()->resultType();
    //op.operationType(fp[0]->data()->resultType());
    bool allString = true;

    for (uint32_t i = 1; i < fp.size(); i++)
    {
        //op.setOpType(op.operationType(), fp[i]->data()->resultType());
        op.setOpType(ct, fp[i]->data()->resultType());
        ct = op.operationType();

        if ((fp[i]->data()->resultType().colDataType != CalpontSystemCatalog::CHAR &&
                fp[i]->data()->resultType().colDataType != CalpontSystemCatalog::TEXT &&
                fp[i]->data()->resultType().colDataType != CalpontSystemCatalog::VARCHAR) ||
                ct.colDataType == CalpontSystemCatalog::DATE ||
                ct.colDataType == CalpontSystemCatalog::DATETIME ||
                ct.colDataType == CalpontSystemCatalog::TIMESTAMP ||
                ct.colDataType == CalpontSystemCatalog::TIME)
        {
            allString = false;
        }
    }

    if (allString)
    {
        ct.colDataType = CalpontSystemCatalog::VARCHAR;
        ct.colWidth = 255;
    }

    else if (op.operationType().colDataType == CalpontSystemCatalog::DATETIME)
    {
        ConstantColumn* cc = NULL;

        for (uint32_t i = 1; i < fp.size(); i++)
        {
            cc = dynamic_cast<ConstantColumn*>(fp[i]->data());

            if (cc)
            {
                Result result = cc->result();
                result.intVal = dataconvert::DataConvert::datetimeToInt(result.strVal);
                cc->result(result);
            }
        }
    }
    else if (op.operationType().colDataType == CalpontSystemCatalog::TIMESTAMP)
    {
        ConstantColumn* cc = NULL;

        for (uint32_t i = 1; i < fp.size(); i++)
        {
            cc = dynamic_cast<ConstantColumn*>(fp[i]->data());

            if (cc)
            {
                Result result = cc->result();
                result.intVal = dataconvert::DataConvert::timestampToInt(result.strVal, timeZone());
                cc->result(result);
            }
        }
    }
    else if (op.operationType().colDataType == CalpontSystemCatalog::TIME)
    {
        ConstantColumn* cc = NULL;

        for (uint32_t i = 1; i < fp.size(); i++)
        {
            cc = dynamic_cast<ConstantColumn*>(fp[i]->data());

            if (cc)
            {
                Result result = cc->result();
                result.intVal = dataconvert::DataConvert::timeToInt(result.strVal);
                cc->result(result);
            }
        }
    }


    return ct;
}

bool Func_between::getBoolVal(rowgroup::Row& row,
                              FunctionParm& pm,
                              bool& isNull,
                              CalpontSystemCatalog::ColType& ct)
{
    return getBool(row, pm, isNull, ct, false) && !isNull;
}





CalpontSystemCatalog::ColType Func_notbetween::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
{
    PredicateOperator* op = new PredicateOperator();
    CalpontSystemCatalog::ColType ct;
    op->setOpType(fp[0]->data()->resultType(), fp[1]->data()->resultType());
    op->setOpType(op->resultType(), fp[2]->data()->resultType());
    return op->operationType();
}

bool Func_notbetween::getBoolVal(rowgroup::Row& row,
                                 FunctionParm& pm,
                                 bool& isNull,
                                 CalpontSystemCatalog::ColType& ct)
{
    return getBool(row, pm, isNull, ct, true) && !isNull;
}


} // namespace funcexp
// vim:ts=4 sw=4: