/*
 * Copyright 2008-2009 Ben Boeckel <MathStuf@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 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/>.
 */

// Header include
#include "StoreUI.h"

// Sigmod includes
#include <sigmod/Game.h>
#include <sigmod/Item.h>
#include <sigmod/Store.h>

// KDE includes
#include <KActionSelector>
#include <KLineEdit>

// Qt includes
#include <QtCore/QFile>
#include <QtGui/QListWidgetItem>
#include <QtUiTools/QUiLoader>

using namespace Sigmod;
using namespace Sigmodr::Widgets;

StoreUI::StoreUI(Store* store, QWidget* parent) :
        ObjectUI(parent)
{
    setObjects(store, new Store(*store));
}

void StoreUI::initGui()
{
    QFile file(":/gui/store.ui");
    file.open(QFile::ReadOnly);
    QWidget *formWidget = QUiLoader().load(&file, this);
    file.close();
    ui_name = formWidget->findChild<KLineEdit*>("varName");
    ui_items = formWidget->findChild<KActionSelector*>("varItems");
    connect(ui_name, SIGNAL(textChanged(QString)), this, SLOT(nameChanged(QString)));
    connect(ui_items, SIGNAL(added(QListWidgetItem*)), this, SLOT(itemAdded(QListWidgetItem*)));
    connect(ui_items, SIGNAL(removed(QListWidgetItem*)), this, SLOT(itemRemoved(QListWidgetItem*)));
}

void StoreUI::refreshGui()
{
    const bool blockedItems = ui_items->blockSignals(true);
    ui_items->availableListWidget()->clear();
    ui_items->selectedListWidget()->clear();
    for (int i = 0; i < game()->itemCount(); ++i)
    {
        const Item* item = game()->item(i);
        QListWidgetItem* widgetItem = new QListWidgetItem(item->name(), ui_items->availableListWidget());
        widgetItem->setData(Qt::UserRole, item->id());
    }
    ui_items->blockSignals(blockedItems);
    ui_items->setButtonsEnabled();
}

void StoreUI::setGui()
{
    ui_name->setText(qobject_cast<Store*>(modified())->name());
    for (int i = 0; i < ui_items->availableListWidget()->count(); ++i)
    {
        QListWidgetItem* widgetItem = ui_items->availableListWidget()->item(i);
        if (qobject_cast<Store*>(modified())->item(widgetItem->data(Qt::UserRole).toInt()))
            ui_items->selectedListWidget()->addItem(ui_items->availableListWidget()->takeItem(i--));
    }
    for (int i = 0; i < ui_items->selectedListWidget()->count(); ++i)
    {
        QListWidgetItem* widgetItem = ui_items->selectedListWidget()->item(i);
        if (!qobject_cast<Store*>(modified())->item(widgetItem->data(Qt::UserRole).toInt()))
            ui_items->availableListWidget()->addItem(ui_items->selectedListWidget()->takeItem(i--));
    }
    ui_items->setButtonsEnabled();
}

void StoreUI::apply()
{
    *qobject_cast<Store*>(original()) = *qobject_cast<Store*>(modified());
    emit(changed(false));
}

void StoreUI::discard()
{
    *qobject_cast<Store*>(modified()) = *qobject_cast<Store*>(original());
    setGui();
    emit(changed(false));
}

void StoreUI::nameChanged(const QString& name)
{
    const int cursor = ui_name->cursorPosition();
    qobject_cast<Store*>(modified())->setName(name);
    ui_name->setCursorPosition(cursor);
}

void StoreUI::itemAdded(QListWidgetItem* item)
{
    qobject_cast<Store*>(modified())->setItem(item->data(Qt::UserRole).toInt(), true);
    setGui();
}

void StoreUI::itemRemoved(QListWidgetItem* item)
{
    qobject_cast<Store*>(modified())->setItem(item->data(Qt::UserRole).toInt(), false);
    setGui();
}