/****************************************************************************
**
** 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/QxSqlEmbedQuery.h>

#include <QxDao/QxSqlQuery.h>

#ifndef _QX_NO_JSON
#include <QxSerialize/QJson/QxSerializeQJson_QxSqlQuery.h>
#endif // _QX_NO_JSON

#include <QxMemLeak/mem_leak.h>

namespace qx
{
   namespace dao
   {
      namespace detail
      {

         struct Q_DECL_HIDDEN QxSqlEmbedQuery::QxSqlEmbedQueryImpl
         {

            qx::QxSqlQuery m_query;       //!< SQL sub-query to embed inside a parent SQL query
            QxSqlEmbedQuery::type m_type; //!< Embed query type

            QxSqlEmbedQueryImpl(QxSqlEmbedQuery::type type) : m_type(type) { ; }
            ~QxSqlEmbedQueryImpl() { ; }
         };

         QxSqlEmbedQuery::QxSqlEmbedQuery(QxSqlEmbedQuery::type type /* = QxSqlEmbedQuery::_none */) : IxSqlElement(0), m_pImpl(new QxSqlEmbedQueryImpl(type)) { ; }

         QxSqlEmbedQuery::QxSqlEmbedQuery(int index, QxSqlEmbedQuery::type type /* = QxSqlEmbedQuery::_none */) : IxSqlElement(index), m_pImpl(new QxSqlEmbedQueryImpl(type)) { ; }

         QxSqlEmbedQuery::~QxSqlEmbedQuery() { ; }

         IxSqlElement::type_class QxSqlEmbedQuery::getTypeClass() const { return IxSqlElement::_sql_embed_query; }

         void QxSqlEmbedQuery::setQuery(const qx::QxSqlQuery &query) { m_pImpl->m_query = query; }

         QString QxSqlEmbedQuery::toString() const
         {
            QString result;
            QString column = m_lstColumns.at(0);
            QString sql = m_pImpl->m_query.query();
            switch (m_pImpl->m_type)
            {
            case _none:
               result = sql;
               break;
            case _in:
               result = column + " IN (" + sql + ")";
               break;
            case _not_in:
               result = column + " NOT IN (" + sql + ")";
               break;
            case _is_equal_to:
               result = column + " = (" + sql + ")";
               break;
            case _is_not_equal_to:
               result = column + " <> (" + sql + ")";
               break;
            default:
               qAssert(false);
            }
            return result;
         }

         void QxSqlEmbedQuery::resolve(QSqlQuery &query, qx::QxCollection<QString, QVariantList> *pLstExecBatch /* = NULL */) const { m_pImpl->m_query.resolve(query, pLstExecBatch); }

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

         QString QxSqlEmbedQuery::getExtraSettings() const
         {
#ifndef _QX_NO_JSON
            return (QString::number(static_cast<int>(m_pImpl->m_type)) + "|" + qx::serialization::json::to_string(m_pImpl->m_query));
#else  // _QX_NO_JSON
            return QString();
#endif // _QX_NO_JSON
         }

         void QxSqlEmbedQuery::setExtraSettings(const QString &s)
         {
#ifndef _QX_NO_JSON
            int pos = s.indexOf("|");
            if (pos == -1)
            {
               m_pImpl->m_type = static_cast<QxSqlEmbedQuery::type>(s.toInt());
               return;
            }
            m_pImpl->m_type = static_cast<QxSqlEmbedQuery::type>(s.left(pos).toInt());
            QString json = s.right(s.size() - (pos + 1));
            qx::serialization::json::from_string(m_pImpl->m_query, json);
#else  // _QX_NO_JSON
            Q_UNUSED(s);
#endif // _QX_NO_JSON
         }

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