/***************************************************************************
 *   Copyright 2010  Cristian Onet onet.cristian@gmail.com                 *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU General Public License as        *
 *   published by the Free Software Foundation; either version 2 of        *
 *   the License or (at your option) version 3 or any later version        *
 *   accepted by the membership of KDE e.V. (or its successor approved     *
 *   by the membership of KDE e.V.), which shall act as a proxy            *
 *   defined in Section 14 of version 3 of the license.                    *
 *                                                                         *
 *   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, see <http://www.gnu.org/licenses/>  *
 ***************************************************************************/

#include "models.h"

// ----------------------------------------------------------------------------
// QT Includes

#include <QTimer>

// ----------------------------------------------------------------------------
// KDE Includes

#include <kglobal.h>

// ----------------------------------------------------------------------------
// Project Includes

#include "accountsmodel.h"
#include "onlinejobmodel.h"

K_GLOBAL_STATIC(Models, models);

struct Models::Private {
  Private() :
      m_accountsModel(0),
      m_institutionsModel(0),
      m_onlineJobModel(0) {}

  AccountsModel *m_accountsModel;
  InstitutionsModel *m_institutionsModel;
  onlineJobModel *m_onlineJobModel;
};

/**
  * This object is a singleton so it will be created very early in the application's life
  * so don't do anything on this constructor that relies on application data (even a i18n call).
  */
Models::Models() : QObject(), d(new Private)
{
}

Models::~Models()
{
  delete d;
}

Models* Models::instance()
{
  return models;
}

/**
  * This is the function to get a reference to the core @ref AccountsModel object.
  * The returned object is owned by this object so don't delete it. It creates the
  * model on the first access to it.
  */
AccountsModel* Models::accountsModel()
{
  if (!d->m_accountsModel)
    d->m_accountsModel = new AccountsModel(this);
  return d->m_accountsModel;
}

InstitutionsModel* Models::institutionsModel()
{
  if (!d->m_institutionsModel)
    d->m_institutionsModel = new InstitutionsModel(this);
  return d->m_institutionsModel;
}

onlineJobModel* Models::onlineJobsModel()
{
  if (!d->m_onlineJobModel)
    d->m_onlineJobModel = new onlineJobModel(this);
  return d->m_onlineJobModel;
}

void Models::fileOpened()
{
  accountsModel()->load();
  institutionsModel()->load();
  onlineJobsModel()->load();
}

void Models::fileClosed()
{
  // TODO: make this cleaner in the future, for now just clear the accounts model before the file is closed
  // to avoid any uncaught KMyMoneyExceptions while using the account objects from this model after the file has been closed
  accountsModel()->removeRows(0, accountsModel()->rowCount());
  institutionsModel()->removeRows(0, institutionsModel()->rowCount());
  onlineJobsModel()->unload();
}
