/****************************************************************************
**
** https://www.qxorm.com/
** Copyright (C) 2013 XDL Team (ic-east.com)
**
** This file is part of the QxOrm library
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any
** damages arising from the use of this software
**
** Commercial Usage
** Licensees holding valid commercial QxOrm licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and XDL Team
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file 'license.gpl3.txt' included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met : http://www.gnu.org/copyleft/gpl.html
**
** If you are unsure which license is appropriate for your use, or
** if you have questions regarding the use of this file, please contact :
** ic-east.com
**
****************************************************************************/

#include <QxPrecompiled.h>

#include <QxDao/QxSqlGenerator/QxSqlGenerator_MSSQLServer.h>

#include <QxDao/QxSqlDatabase.h>

#include <QxRegister/QxClassX.h>

#include <QxMemLeak/mem_leak.h>

namespace qx
{
   namespace dao
   {
      namespace detail
      {

         QxSqlGenerator_MSSQLServer::QxSqlGenerator_MSSQLServer() : QxSqlGenerator_Standard() { this->initSqlTypeByClassName(); }

         QxSqlGenerator_MSSQLServer::~QxSqlGenerator_MSSQLServer() { ; }

         void QxSqlGenerator_MSSQLServer::init() { qx::QxSqlDatabase::getSingleton()->setAddAutoIncrementIdToUpdateQuery(false); }

         QString QxSqlGenerator_MSSQLServer::getLimit(const QxSqlLimit *pLimit) const
         {
            Q_UNUSED(pLimit);
            return "";
         }

         void QxSqlGenerator_MSSQLServer::resolveLimit(QSqlQuery &query, const QxSqlLimit *pLimit, qx::QxCollection<QString, QVariantList> *pLstExecBatch /* = NULL */) const
         {
            if (!pLimit)
            {
               qAssert(false);
               return;
            }
            QString sRowsCount = pLimit->getRowsCount_ParamKey();
            int iRowsCount(pLimit->getRowsCount());
            bool bQuestionMark = (qx::QxSqlDatabase::getSingleton()->getSqlPlaceHolderStyle() == qx::QxSqlDatabase::ph_style_question_mark);

            if (pLstExecBatch)
            {
               if (!pLstExecBatch->exist(sRowsCount))
               {
                  QVariantList empty;
                  pLstExecBatch->insert(sRowsCount, empty);
               }
               QVariantList &values = const_cast<QVariantList &>(pLstExecBatch->getByKey(sRowsCount));
               values.append(iRowsCount);
            }
            else
            {
               if (bQuestionMark)
               {
                  query.addBindValue(iRowsCount);
               }
               else
               {
                  query.bindValue(sRowsCount, iRowsCount);
               }
            }
         }

         void QxSqlGenerator_MSSQLServer::postProcess(QString &sql, const QxSqlLimit *pLimit) const
         {
            if (!pLimit)
            {
               qAssert(false);
               return;
            }
            if (!sql.left(7).contains("SELECT ", Qt::CaseInsensitive))
            {
               qAssert(false);
               return;
            }
            QString sRowsCount = pLimit->getRowsCount_ParamKey();
            sql = sql.right(sql.size() - 7);
            sql = "SELECT TOP " + sRowsCount + " " + sql;
         }

         void QxSqlGenerator_MSSQLServer::initSqlTypeByClassName() const
         {
            QHash<QString, QString> *lstSqlType = qx::QxClassX::getAllSqlTypeByClassName();
            if (!lstSqlType)
            {
               qAssert(false);
               return;
            }

            lstSqlType->insert("bool", "TINYINT");
            lstSqlType->insert("qx_bool", "TEXT");
            lstSqlType->insert("short", "SMALLINT");
            lstSqlType->insert("int", "INT");
            lstSqlType->insert("long", "INT");
            lstSqlType->insert("long long", "BIGINT");
            lstSqlType->insert("float", "FLOAT");
            lstSqlType->insert("double", "FLOAT");
            lstSqlType->insert("long double", "FLOAT");
            lstSqlType->insert("unsigned short", "SMALLINT");
            lstSqlType->insert("unsigned int", "INT");
            lstSqlType->insert("unsigned long", "INT");
            lstSqlType->insert("unsigned long long", "BIGINT");
            lstSqlType->insert("std::string", "TEXT");
            lstSqlType->insert("std::wstring", "TEXT");
            lstSqlType->insert("QString", "TEXT");
            lstSqlType->insert("QVariant", "TEXT");
            lstSqlType->insert("QUuid", "TEXT");
            lstSqlType->insert("QDate", "DATE");
            lstSqlType->insert("QTime", "TIME");
            lstSqlType->insert("QDateTime", "TIMESTAMP");
            lstSqlType->insert("QByteArray", "IMAGE");
            lstSqlType->insert("qx::QxDateNeutral", "TEXT");
            lstSqlType->insert("qx::QxTimeNeutral", "TEXT");
            lstSqlType->insert("qx::QxDateTimeNeutral", "TEXT");
         }

      } // namespace detail
   } // namespace dao
} // namespace qx
