/****************************************************************************
**
** 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/QxSqlElement/QxSqlCompare.h>

#include <QxDao/QxSqlDatabase.h>

#include <QxMemLeak/mem_leak.h>

namespace qx
{
   namespace dao
   {
      namespace detail
      {

         QxSqlCompare::QxSqlCompare() : IxSqlElement(0), m_type(QxSqlCompare::_is_equal_to) { ; }

         QxSqlCompare::QxSqlCompare(int index, QxSqlCompare::type t, const QString &sCustomOperator /* = QString() */) : IxSqlElement(index), m_type(t), m_sCustomOperator(sCustomOperator) { ; }

         QxSqlCompare::~QxSqlCompare() { ; }

         IxSqlElement::type_class QxSqlCompare::getTypeClass() const { return IxSqlElement::_sql_compare; }

         QString QxSqlCompare::toString() const
         {
            qAssert((m_lstColumns.count() == 1) && (m_lstKeys.count() == 1));
            QString sReturn, sColumn(m_lstColumns.at(0)), sKey(m_lstKeys.at(0));
            qAssert(!sColumn.isEmpty() && !sKey.isEmpty());

            switch (m_type)
            {
            case _is_equal_to:
               sReturn = sColumn + " = " + sKey;
               break;
            case _is_not_equal_to:
               sReturn = sColumn + " <> " + sKey;
               break;
            case _is_greater_than:
               sReturn = sColumn + " > " + sKey;
               break;
            case _is_greater_than_or_equal_to:
               sReturn = sColumn + " >= " + sKey;
               break;
            case _is_less_than:
               sReturn = sColumn + " < " + sKey;
               break;
            case _is_less_than_or_equal_to:
               sReturn = sColumn + " <= " + sKey;
               break;
            case _like:
               sReturn = sColumn + " LIKE " + sKey;
               break;
            case _not_like:
               sReturn = sColumn + " NOT LIKE " + sKey;
               break;
            case _starts_with:
               sReturn = sColumn + " LIKE " + sKey;
               break;
            case _ends_with:
               sReturn = sColumn + " LIKE " + sKey;
               break;
            case _contains_string:
               sReturn = sColumn + " LIKE " + sKey;
               break;
            case _custom_operator:
               sReturn = sColumn + " " + m_sCustomOperator + " " + sKey;
               break;
            case _is_equal_to_select:
               sReturn = sColumn + " = (" + sKey + ")";
               break;
            case _is_not_equal_to_select:
               sReturn = sColumn + " <> (" + sKey + ")";
               break;
            default:
               qAssert(false);
            }

            return sReturn;
         }

         void QxSqlCompare::resolve(QSqlQuery &query, qx::QxCollection<QString, QVariantList> *pLstExecBatch /* = NULL */) const
         {
            qAssert((m_lstKeys.count() == 1) && (m_lstValues.count() == 1));
            QString sKey(m_lstKeys.at(0));
            QVariant vValue(m_lstValues.at(0));

            QString sWildCard = m_pSqlGenerator->getWildCard();
            if (m_type == _starts_with)
            {
               vValue = QVariant(vValue.toString() + sWildCard);
            }
            else if (m_type == _ends_with)
            {
               vValue = QVariant(sWildCard + vValue.toString());
            }
            else if (m_type == _contains_string)
            {
               vValue = QVariant(sWildCard + vValue.toString() + sWildCard);
            }

            if (pLstExecBatch)
            {
               if (!pLstExecBatch->exist(sKey))
               {
                  QVariantList empty;
                  pLstExecBatch->insert(sKey, empty);
               }
               QVariantList &values = const_cast<QVariantList &>(pLstExecBatch->getByKey(sKey));
               values.append(vValue);
            }
            else
            {
               bool bQuestionMark = (qx::QxSqlDatabase::getSingleton()->getSqlPlaceHolderStyle() == qx::QxSqlDatabase::ph_style_question_mark);
               if (bQuestionMark)
               {
                  query.addBindValue(vValue);
               }
               else
               {
                  query.bindValue(sKey, vValue);
               }
            }
         }

         void QxSqlCompare::postProcess(QString &sql) const { Q_UNUSED(sql); }

         QString QxSqlCompare::getExtraSettings() const { return (QString::number(static_cast<int>(m_type)) + "|" + m_sCustomOperator); }

         void QxSqlCompare::setExtraSettings(const QString &s)
         {
            int iPos = s.indexOf("|");
            if (iPos == -1)
            {
               m_type = static_cast<QxSqlCompare::type>(s.toInt());
               return;
            }
            m_type = static_cast<QxSqlCompare::type>(s.left(iPos).toInt());
            m_sCustomOperator = s.right(s.size() - (iPos + 1));
         }

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