// db.cpp
//
// Create Rivendell MySQL database RDDbConfig
//
//   (C) Copyright 2002-2018 Fred Gleason <fredg@paravelsystems.com>
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the GNU General Public License version 2 as
//   published by the Free Software Foundation.
//
//   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., 675 Mass Ave, Cambridge, MA 02139, USA.
//

#include <qsqldatabase.h>
#include <qsqlquery.h>

#include "db.h"

Db::Db(QString *err_str,RDConfig *config)
{
  QSqlQuery *q;
  db_schema=0;

  //
  // Open Database
  //
  QSqlDatabase db=QSqlDatabase::addDatabase(config->mysqlDriver(),"Rivendell");
  if(!db.isValid()) {
    *err_str+= QString(QObject::tr("Couldn't initialize MySql driver!"));
    return;
  }
  db.setHostName(config->mysqlHostname());
  db.setDatabaseName(config->mysqlDbname());
  db.setUserName(config->mysqlUsername());
  db.setPassword(config->mysqlPassword());
  if(!db.open()) {
    *err_str+=QString().sprintf("Couldn't open MySQL connection on %s",
      (const char *)config->mysqlHostname());
    return;
  }

  q=new QSqlQuery("select DB from VERSION",db);
  if(q->first()) {
    db_schema=q->value(0).toUInt();
  }
  delete q;
}


Db::~Db()
{
  {
    QSqlDatabase db=QSqlDatabase::database("Rivendell");
    db.close();
  }
  QSqlDatabase::removeDatabase("Rivendell");
}

void Db::clearDatabase(QString name)
{
  QSqlQuery *q;
  QSqlDatabase db=QSqlDatabase::database("Rivendell");

  if(db.isOpen()){
    q=new QSqlQuery(QString().sprintf("drop database if exists `%s`",(const char *)name),db);
    delete q;

    q=new QSqlQuery(QString().sprintf("create database `%s`",(const char *)name),db);
    delete q;
  }
}

bool Db::isOpen()
{
  QSqlDatabase db=QSqlDatabase::database("Rivendell");
  return db.isOpen();
}

unsigned Db::schema()
{
  return db_schema;
}