/****************************************************************************
**
** 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
**
****************************************************************************/

namespace qx
{
   namespace dao
   {
      namespace detail
      {

         template <class T>
         struct QxDao_CreateTable
         {

            static QSqlError createTable(QSqlDatabase *pDatabase)
            {
               T t;
               Q_UNUSED(t);
               qx::dao::detail::QxDao_Helper<T> dao(t, pDatabase, "create table", new qx::QxSqlQueryBuilder_CreateTable<T>());
               if (!dao.isValid())
               {
                  return dao.error();
               }

               if (dao.database().driverName() != "QSQLITE")
               {
                  QString sWarningMsg = "-- WARNING -- the function qx::dao::create_table<T>() can be used only with a SQLite database to create examples or prototypes, for other databases, it is recommended :";
                  sWarningMsg += "\n\t - to use QxEntityEditor application and its DDL SQL database schema export plugin ;";
                  sWarningMsg += "\n\t - or to manage the database schema with an external tool provided by the SGBD (SQLite Manager for SQLite, pgAdmin for PostgreSQL, MySQL Workbench for MySQL, etc...) ;";
                  sWarningMsg += "\n\t - or to generate database schema using the introspection engine of QxOrm library : go to 'https://www.qxorm.com/qxorm_en/faq.html#faq_230' web page for more details.";
                  qDebug("[QxOrm] %s", qPrintable(sWarningMsg));
               }

               QString sql = dao.builder().buildSql().getSqlQuery();
               if (sql.isEmpty())
               {
                  return dao.errEmpty();
               }
               if (!dao.query().exec(sql))
               {
                  return dao.errFailed();
               }

               long index = 0;
               qx::IxSqlRelation *pRelation = NULL;
               while ((pRelation = dao.builder().nextRelation(index)))
               {
                  QString sqlExtraTable = pRelation->createExtraTable();
                  if (sqlExtraTable.isEmpty())
                  {
                     continue;
                  }
                  QSqlQuery queryCreateTable(dao.database());
                  bool bExtraTable = queryCreateTable.exec(sqlExtraTable);
                  if (!bExtraTable)
                  {
                     dao.updateError(queryCreateTable.lastError());
                     break;
                  }
               }

               return dao.error();
            }
         };

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