/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2011  Georg Rudoy
 *
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * 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 "fastspeedcontrolwidget.h"
#include <QSettings>
#include <QHBoxLayout>
#include <plugininterface/util.h>

namespace LeechCraft
{
	namespace Plugins
	{
		namespace BitTorrent
		{
			FastSpeedControlWidget::FastSpeedControlWidget (QWidget *parent)
			: QWidget (parent)
			{
				Ui_.setupUi (this);

				LoadSettings ();
			}
			
			void FastSpeedControlWidget::LoadSettings ()
			{
				QSettings settings (QCoreApplication::organizationName (),
						QCoreApplication::applicationName () + "_Torrent");
				settings.beginGroup ("FastSpeedControl");
				int num = settings.beginReadArray ("Values");
				if (!num)
					num = 1;
				Ui_.Box_->setValue (num);
				Ui_.Slider_->setValue (num);
				SetNum (num);

				int prev = 50;
				for (int i = 0; i < Widgets_.size (); ++i)
				{
					settings.setArrayIndex (i);
					Widgets_.at (i).first->
						setValue (settings.value ("DownValue", prev).toInt ());
					Widgets_.at (i).second->
						setValue (settings.value ("UpValue", prev).toInt ());
					prev *= 3;
				}
				settings.endArray ();
				settings.endGroup ();
			}

			void FastSpeedControlWidget::SaveSettings ()
			{
				QSettings settings (QCoreApplication::organizationName (),
						QCoreApplication::applicationName () + "_Torrent");
				settings.beginGroup ("FastSpeedControl");
				settings.remove ("");
				settings.beginWriteArray ("Values");
				for (int i = 0; i < Widgets_.size (); ++i)
				{
					settings.setArrayIndex (i);
					settings.setValue ("DownValue", Widgets_.at (i).first->value ());
					settings.setValue ("UpValue", Widgets_.at (i).second->value ());
				}
				settings.endArray ();
				settings.endGroup ();
			}
			
			void FastSpeedControlWidget::SetNum (int num)
			{
				while (Widgets_.size () < num)
				{
					QHBoxLayout *lay = new QHBoxLayout ();
					QSpinBox *down = new QSpinBox ();
					QSpinBox *up = new QSpinBox ();
					lay->addWidget (down);
					lay->addWidget (up);
					static_cast<QBoxLayout*> (layout ())->addLayout (lay);
					Widgets_ << qMakePair (down, up);

					down->setSuffix (tr (" KiB/s"));
					up->setSuffix (tr (" KiB/s"));
					down->setRange (1, 1024 * 1024);
					up->setRange (1, 1024 * 1024);

					if (Widgets_.size () > 1)
					{
						QPair<QSpinBox*, QSpinBox*> prev = Widgets_.at (Widgets_.size () - 2);
						down->setValue (prev.first->value () * 3);
						up->setValue (prev.second->value () * 3);
					}
					else
					{
						down->setValue (50);
						up->setValue (50);
					}
				}

				while (Widgets_.size () > num)
				{
					delete layout ()->takeAt (layout ()->count () - 1);

					QPair<QSpinBox*, QSpinBox*> pair = Widgets_.takeLast ();
					delete pair.first;
					delete pair.second;
				}
			}

			void FastSpeedControlWidget::on_Box__valueChanged (int val)
			{
				SetNum (val);
			}

			void FastSpeedControlWidget::on_Slider__valueChanged (int val)
			{
				SetNum (val);
			}

			void FastSpeedControlWidget::accept ()
			{
				SaveSettings ();

				emit speedsChanged ();
			}

			void FastSpeedControlWidget::reject ()
			{
				LoadSettings ();
			}
		};
	};
};

